mcs/class/Managed.Windows.Forms/System.Windows.Forms/XplatUIX11GTK.cs

   1 // Permission is hereby granted, free of charge, to any person obtaining
   2 // a copy of this software and associated documentation files (the
   3 // "Software"), to deal in the Software without restriction, including
   4 // without limitation the rights to use, copy, modify, merge, publish,
   5 // distribute, sublicense, and/or sell copies of the Software, and to
   6 // permit persons to whom the Software is furnished to do so, subject to
   7 // the following conditions:
   8 //
   9 // The above copyright notice and this permission notice shall be
  10 // included in all copies or substantial portions of the Software.
  11 //
  12 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  13 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  14 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  15 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  16 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  17 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  18 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  19 //
  20 // Copyright (c) 2004-2006 Novell, Inc.
  21 //
  22 // Authors:
  23 //      Peter Bartok    pbartok@novell.com
  24 //      Alexander Olk   alex.olk@googlemail.com
  25 //
  26 //
  27
  28 // NOTE:
  29 //      This driver understands the following environment variables: (Set the var to enable feature)
  30 //
  31 //      MONO_XEXCEPTIONS        = throw an exception when a X11 error is encountered;
  32 //                                by default a message is displayed but execution continues
  33 //
  34 //      MONO_XSYNC              = perform all X11 commands synchronous; this is slower but
  35 //                                helps in debugging errors
  36 //
  37
  38 // NOT COMPLETE - WORK IN PROGRESS
  39
  40 // One feature of the driver is, that PaintEventstart returns a graphics context created from a offscreen drawable (pixmap)
  41
  42 // define to log Window handles and relationships to stdout
  43 #undef DriverDebug
  44
  45 // Extra detailed debug
  46 #undef  DriverDebugExtra
  47
  48 using System;
  49 using System.ComponentModel;
  50 using System.Collections;
  51 using System.Diagnostics;
  52 using System.Drawing;
  53 using System.Drawing.Drawing2D;
  54 using System.Drawing.Imaging;
  55 using System.IO;
  56 using System.Net;
  57 using System.Net.Sockets;
  58 using System.Reflection;
  59 using System.Runtime.InteropServices;
  60 using System.Text;
  61 using System.Threading;
  62
  63 // Only do the poll when building with mono for now
  64 #if __MonoCS__
  65 using Mono.Unix.Native;
  66 #endif
  67
  68 /// X11 Version
  69 namespace System.Windows.Forms {
  70         internal class XplatUIX11GTK : XplatUIDriver {
  71
  72                 internal enum GdkWindowClass {
  73                         GDK_INPUT_OUTPUT,
  74                         GDK_INPUT_ONLY
  75                 }
  76
  77                 internal enum GdkWindowType {
  78                         GDK_WINDOW_ROOT,
  79                         GDK_WINDOW_TOPLEVEL,
  80                         GDK_WINDOW_CHILD,
  81                         GDK_WINDOW_DIALOG,
  82                         GDK_WINDOW_TEMP,
  83                         GDK_WINDOW_FOREIGN
  84                 }
  85
  86                 internal enum GdkWindowHints {
  87                         GDK_HINT_POS         = 1 << 0,
  88                         GDK_HINT_MIN_SIZE    = 1 << 1,
  89                         GDK_HINT_MAX_SIZE    = 1 << 2,
  90                         GDK_HINT_BASE_SIZE   = 1 << 3,
  91                         GDK_HINT_ASPECT      = 1 << 4,
  92                         GDK_HINT_RESIZE_INC  = 1 << 5,
  93                         GDK_HINT_WIN_GRAVITY = 1 << 6,
  94                         GDK_HINT_USER_POS    = 1 << 7,
  95                         GDK_HINT_USER_SIZE   = 1 << 8
  96                 }
  97
  98                 internal enum GdkGravity {
  99                         GDK_GRAVITY_NORTH_WEST = 1,
 100                         GDK_GRAVITY_NORTH,
 101                         GDK_GRAVITY_NORTH_EAST,
 102                         GDK_GRAVITY_WEST,
 103                         GDK_GRAVITY_CENTER,
 104                         GDK_GRAVITY_EAST,
 105                         GDK_GRAVITY_SOUTH_WEST,
 106                         GDK_GRAVITY_SOUTH,
 107                         GDK_GRAVITY_SOUTH_EAST,
 108                         GDK_GRAVITY_STATIC
 109                 }
 110
 111                 internal enum GdkWindowEdge {
 112                         GDK_WINDOW_EDGE_NORTH_WEST,
 113                         GDK_WINDOW_EDGE_NORTH,
 114                         GDK_WINDOW_EDGE_NORTH_EAST,
 115                         GDK_WINDOW_EDGE_WEST,
 116                         GDK_WINDOW_EDGE_EAST,
 117                         GDK_WINDOW_EDGE_SOUTH_WEST,
 118                         GDK_WINDOW_EDGE_SOUTH,
 119                         GDK_WINDOW_EDGE_SOUTH_EAST
 120                 }
 121
 122                 internal enum GdkWindowTypeHint {
 123                         GDK_WINDOW_TYPE_HINT_NORMAL,
 124                         GDK_WINDOW_TYPE_HINT_DIALOG,
 125                         GDK_WINDOW_TYPE_HINT_MENU,
 126                         GDK_WINDOW_TYPE_HINT_TOOLBAR,
 127                         GDK_WINDOW_TYPE_HINT_SPLASHSCREEN,
 128                         GDK_WINDOW_TYPE_HINT_UTILITY,
 129                         GDK_WINDOW_TYPE_HINT_DOCK,
 130                         GDK_WINDOW_TYPE_HINT_DESKTOP
 131                 }
 132
 133                 internal enum GdkWindowAttributesType {
 134                         GDK_WA_TITLE    = 1 << 1,
 135                         GDK_WA_X        = 1 << 2,
 136                         GDK_WA_Y        = 1 << 3,
 137                         GDK_WA_CURSOR   = 1 << 4,
 138                         GDK_WA_COLORMAP = 1 << 5,
 139                         GDK_WA_VISUAL   = 1 << 6,
 140                         GDK_WA_WMCLASS  = 1 << 7,
 141                         GDK_WA_NOREDIR  = 1 << 8
 142                 }
 143
 144                 internal enum GdkEventMask {
 145                         GDK_EXPOSURE_MASK               = 1 << 1,
 146                         GDK_POINTER_MOTION_MASK         = 1 << 2,
 147                         GDK_POINTER_MOTION_HINT_MASK    = 1 << 3,
 148                         GDK_BUTTON_MOTION_MASK          = 1 << 4,
 149                         GDK_BUTTON1_MOTION_MASK         = 1 << 5,
 150                         GDK_BUTTON2_MOTION_MASK         = 1 << 6,
 151                         GDK_BUTTON3_MOTION_MASK         = 1 << 7,
 152                         GDK_BUTTON_PRESS_MASK           = 1 << 8,
 153                         GDK_BUTTON_RELEASE_MASK         = 1 << 9,
 154                         GDK_KEY_PRESS_MASK              = 1 << 10,
 155                         GDK_KEY_RELEASE_MASK            = 1 << 11,
 156                         GDK_ENTER_NOTIFY_MASK           = 1 << 12,
 157                         GDK_LEAVE_NOTIFY_MASK           = 1 << 13,
 158                         GDK_FOCUS_CHANGE_MASK           = 1 << 14,
 159                         GDK_STRUCTURE_MASK              = 1 << 15,
 160                         GDK_PROPERTY_CHANGE_MASK        = 1 << 16,
 161                         GDK_VISIBILITY_NOTIFY_MASK      = 1 << 17,
 162                         GDK_PROXIMITY_IN_MASK           = 1 << 18,
 163                         GDK_PROXIMITY_OUT_MASK          = 1 << 19,
 164                         GDK_SUBSTRUCTURE_MASK           = 1 << 20,
 165                         GDK_SCROLL_MASK                 = 1 << 21,
 166                         GDK_ALL_EVENTS_MASK             = 0x3FFFFE
 167                 }
 168
 169                 internal enum GdkEventType {
 170                         GDK_NOTHING             = -1,
 171                         GDK_DELETE              = 0,
 172                         GDK_DESTROY             = 1,
 173                         GDK_EXPOSE              = 2,
 174                         GDK_MOTION_NOTIFY       = 3,
 175                         GDK_BUTTON_PRESS        = 4,
 176                         GDK_2BUTTON_PRESS       = 5,
 177                         GDK_3BUTTON_PRESS       = 6,
 178                         GDK_BUTTON_RELEASE      = 7,
 179                         GDK_KEY_PRESS           = 8,
 180                         GDK_KEY_RELEASE         = 9,
 181                         GDK_ENTER_NOTIFY        = 10,
 182                         GDK_LEAVE_NOTIFY        = 11,
 183                         GDK_FOCUS_CHANGE        = 12,
 184                         GDK_CONFIGURE           = 13,
 185                         GDK_MAP                 = 14,
 186                         GDK_UNMAP               = 15,
 187                         GDK_PROPERTY_NOTIFY     = 16,
 188                         GDK_SELECTION_CLEAR     = 17,
 189                         GDK_SELECTION_REQUEST   = 18,
 190                         GDK_SELECTION_NOTIFY    = 19,
 191                         GDK_PROXIMITY_IN        = 20,
 192                         GDK_PROXIMITY_OUT       = 21,
 193                         GDK_DRAG_ENTER          = 22,
 194                         GDK_DRAG_LEAVE          = 23,
 195                         GDK_DRAG_MOTION         = 24,
 196                         GDK_DRAG_STATUS         = 25,
 197                         GDK_DROP_START          = 26,
 198                         GDK_DROP_FINISHED       = 27,
 199                         GDK_CLIENT_EVENT        = 28,
 200                         GDK_VISIBILITY_NOTIFY   = 29,
 201                         GDK_NO_EXPOSE           = 30,
 202                         GDK_SCROLL              = 31,
 203                         GDK_WINDOW_STATE        = 32,
 204                         GDK_SETTING             = 33,
 205                         GDK_OWNER_CHANGE        = 34,
 206                         GDK_GRAB_BROKEN         = 35
 207                 }
 208
 209                 internal enum GdkWMDecoration {
 210                         GDK_DECOR_ALL           = 1 << 0,
 211                         GDK_DECOR_BORDER        = 1 << 1,
 212                         GDK_DECOR_RESIZEH       = 1 << 2,
 213                         GDK_DECOR_TITLE         = 1 << 3,
 214                         GDK_DECOR_MENU          = 1 << 4,
 215                         GDK_DECOR_MINIMIZE      = 1 << 5,
 216                         GDK_DECOR_MAXIMIZE      = 1 << 6
 217                 }
 218
 219                 internal enum GdkWMFunction {
 220                         GDK_FUNC_ALL            = 1 << 0,
 221                         GDK_FUNC_RESIZE         = 1 << 1,
 222                         GDK_FUNC_MOVE           = 1 << 2,
 223                         GDK_FUNC_MINIMIZE       = 1 << 3,
 224                         GDK_FUNC_MAXIMIZE       = 1 << 4,
 225                         GDK_FUNC_CLOSE          = 1 << 5
 226                 }
 227
 228                 internal enum GdkCursorType {
 229                         GDK_X_CURSOR              = 0,
 230                         GDK_ARROW                 = 2,
 231                         GDK_BASED_ARROW_DOWN      = 4,
 232                         GDK_BASED_ARROW_UP        = 6,
 233                         GDK_BOAT                  = 8,
 234                         GDK_BOGOSITY              = 10,
 235                         GDK_BOTTOM_LEFT_CORNER    = 12,
 236                         GDK_BOTTOM_RIGHT_CORNER   = 14,
 237                         GDK_BOTTOM_SIDE           = 16,
 238                         GDK_BOTTOM_TEE            = 18,
 239                         GDK_BOX_SPIRAL            = 20,
 240                         GDK_CENTER_PTR            = 22,
 241                         GDK_CIRCLE                = 24,
 242                         GDK_CLOCK                 = 26,
 243                         GDK_COFFEE_MUG            = 28,
 244                         GDK_CROSS                 = 30,
 245                         GDK_CROSS_REVERSE         = 32,
 246                         GDK_CROSSHAIR             = 34,
 247                         GDK_DIAMOND_CROSS         = 36,
 248                         GDK_DOT                   = 38,
 249                         GDK_DOTBOX                = 40,
 250                         GDK_DOUBLE_ARROW          = 42,
 251                         GDK_DRAFT_LARGE           = 44,
 252                         GDK_DRAFT_SMALL           = 46,
 253                         GDK_DRAPED_BOX            = 48,
 254                         GDK_EXCHANGE              = 50,
 255                         GDK_FLEUR                 = 52,
 256                         GDK_GOBBLER               = 54,
 257                         GDK_GUMBY                 = 56,
 258                         GDK_HAND1                 = 58,
 259                         GDK_HAND2                 = 60,
 260                         GDK_HEART                 = 62,
 261                         GDK_ICON                  = 64,
 262                         GDK_IRON_CROSS            = 66,
 263                         GDK_LEFT_PTR              = 68,
 264                         GDK_LEFT_SIDE             = 70,
 265                         GDK_LEFT_TEE              = 72,
 266                         GDK_LEFTBUTTON            = 74,
 267                         GDK_LL_ANGLE              = 76,
 268                         GDK_LR_ANGLE              = 78,
 269                         GDK_MAN                   = 80,
 270                         GDK_MIDDLEBUTTON          = 82,
 271                         GDK_MOUSE                 = 84,
 272                         GDK_PENCIL                = 86,
 273                         GDK_PIRATE                = 88,
 274                         GDK_PLUS                  = 90,
 275                         GDK_QUESTION_ARROW        = 92,
 276                         GDK_RIGHT_PTR             = 94,
 277                         GDK_RIGHT_SIDE            = 96,
 278                         GDK_RIGHT_TEE             = 98,
 279                         GDK_RIGHTBUTTON           = 100,
 280                         GDK_RTL_LOGO              = 102,
 281                         GDK_SAILBOAT              = 104,
 282                         GDK_SB_DOWN_ARROW         = 106,
 283                         GDK_SB_H_DOUBLE_ARROW     = 108,
 284                         GDK_SB_LEFT_ARROW         = 110,
 285                         GDK_SB_RIGHT_ARROW        = 112,
 286                         GDK_SB_UP_ARROW           = 114,
 287                         GDK_SB_V_DOUBLE_ARROW     = 116,
 288                         GDK_SHUTTLE               = 118,
 289                         GDK_SIZING                = 120,
 290                         GDK_SPIDER                = 122,
 291                         GDK_SPRAYCAN              = 124,
 292                         GDK_STAR                  = 126,
 293                         GDK_TARGET                = 128,
 294                         GDK_TCROSS                = 130,
 295                         GDK_TOP_LEFT_ARROW        = 132,
 296                         GDK_TOP_LEFT_CORNER       = 134,
 297                         GDK_TOP_RIGHT_CORNER      = 136,
 298                         GDK_TOP_SIDE              = 138,
 299                         GDK_TOP_TEE               = 140,
 300                         GDK_TREK                  = 142,
 301                         GDK_UL_ANGLE              = 144,
 302                         GDK_UMBRELLA              = 146,
 303                         GDK_UR_ANGLE              = 148,
 304                         GDK_WATCH                 = 150,
 305                         GDK_XTERM                 = 152,
 306                         GDK_LAST_CURSOR,
 307                         GDK_CURSOR_IS_PIXMAP      = -1
 308                 }
 309
 310                 internal enum GdkPropMode {
 311                         GDK_PROP_MODE_REPLACE,
 312                         GDK_PROP_MODE_PREPEND,
 313                         GDK_PROP_MODE_APPEND
 314                 }
 315
 316                 [StructLayout (LayoutKind.Sequential)]
 317                 internal struct GdkGeometry {
 318                         internal int min_width;
 319                         internal int min_height;
 320                         internal int max_width;
 321                         internal int max_height;
 322                         internal int base_width;
 323                         internal int base_height;
 324                         internal int width_inc;
 325                         internal int height_inc;
 326                         internal double min_aspect;
 327                         internal double max_aspect;
 328                         internal GdkGravity win_gravity;
 329                 }
 330
 331                 [StructLayout (LayoutKind.Sequential)]
 332                 internal struct GdkWindowAttr {
 333                         internal string title;
 334                         internal int event_mask;
 335                         internal int x, y;
 336                         internal int width;
 337                         internal int height;
 338                         internal GdkWindowClass wclass;
 339                         internal IntPtr visual;
 340                         internal IntPtr colormap;
 341                         internal GdkWindowType window_type;
 342                         internal IntPtr cursor;
 343                         internal string wmclass_name;
 344                         internal string wmclass_class;
 345                         internal bool override_redirect;
 346                 }
 347
 348                 #region Local Variables
 349                 // General
 350                 static volatile XplatUIX11GTK   Instance;
 351                 private static int              RefCount;
 352                 private static object           XlibLock;               // Our locking object
 353                 private static bool             ThemesEnabled;
 354
 355                 // General X11
 356                 private static IntPtr           DisplayHandle;          // X11 handle to display
 357                 private static IntPtr           GdkDisplayHandle;       // gdk handle to display
 358                 private static int              ScreenNo;               // Screen number used
 359                 private static IntPtr           GdkScreen;
 360                 private static IntPtr           DefaultColormap;        // Colormap for screen
 361                 private static IntPtr           GdkDefaultColormap;     // Gdk Colormap for screen
 362                 private static IntPtr           CustomVisual;           // Visual for window creation
 363                 private static IntPtr           GdkCustomVisual;
 364                 private static IntPtr           CustomColormap;         // Colormap for window creation
 365                 private static IntPtr           GdkCustomColormap;
 366                 private static int              VisualBestDepth;
 367                 private static IntPtr           RootWindow;             // Handle of the root window for the screen/display
 368                 private static IntPtr           GdkRootWindow;          // Gdk handle of the root window for the screen/display
 369                 private static IntPtr           FosterParent;           // Container to hold child windows until their parent exists
 370                 private static IntPtr           GdkFosterParent;        // Container to hold child windows until their parent exists
 371                 private static XErrorHandler    ErrorHandler;           // Error handler delegate
 372                 private static bool             ErrorExceptions;        // Throw exceptions on X errors
 373                 private static bool             PostQuitState;          // True if we've got an pending exit
 374
 375                 // Clipboard
 376                 private static IntPtr           ClipMagic = new IntPtr(27051977);
 377                 private static ClipboardStruct  Clipboard;              // Our clipboard
 378
 379                 // Communication
 380                 private static int              PostAtom;               // PostMessage atom
 381                 private static int              AsyncAtom;              // Support for async messages
 382
 383                 // Message Loop
 384                 private static XEventQueue      MessageQueue;           // Holds our queued up events
 385                 #if __MonoCS__                                          //
 386                 private static Pollfd[]         pollfds;                // For watching the X11 socket
 387                 #endif                                                  //
 388                 private static X11Keyboard      Keyboard;               //
 389                 private static X11Dnd           Dnd;
 390                 private static Socket           listen;                 //
 391                 private static Socket           wake;                   //
 392                 private static Socket           wake_receive;           //
 393                 private static byte[]           network_buffer;         //
 394
 395
 396                 // Focus tracking
 397                 private static IntPtr           ActiveWindow;           // Handle of the active window
 398                 private static IntPtr           FocusWindow;            // Handle of the window with keyboard focus (if any)
 399
 400                 // Modality support
 401                 private static Stack            ModalWindows;           // Stack of our modal windows
 402
 403                 // Systray
 404                 private static IntPtr           SystrayMgrWindow;       // Handle of the Systray Manager window
 405
 406                 // Cursors
 407                 private static IntPtr           LastCursorWindow;       // The last window we set the cursor on
 408                 private static IntPtr           LastCursorHandle;       // The handle that was last set on LastCursorWindow
 409                 private static IntPtr           OverrideCursorHandle;   // The cursor that is set to override any other cursors
 410
 411                 // Caret
 412                 private static CaretStruct      Caret;                  //
 413
 414                 // Support for Window Styles
 415                 private static int[]            NetAtoms;               // All atoms we know
 416
 417                 // mouse hover message generation
 418                 private static HoverStruct      HoverState;             //
 419
 420                 // double click message generation
 421                 private static ClickStruct      ClickPending;           //
 422
 423                 // Support for mouse grab
 424                 private static GrabStruct       Grab;                   //
 425
 426                 // State
 427                 private static Point            MousePosition;          // Last position of mouse, in screen coords
 428                 internal static MouseButtons    MouseState;             // Last state of mouse buttons
 429
 430                 // Timers
 431                 private static ArrayList        TimerList;              // Holds SWF.Timers
 432
 433                 // 'Constants'
 434                 private static int              DoubleClickInterval;    // msec; max interval between clicks to count as double click
 435
 436                 const GdkEventMask GdkSelectInputMask = GdkEventMask.GDK_BUTTON_PRESS_MASK |
 437                 GdkEventMask.GDK_BUTTON_RELEASE_MASK |
 438                 GdkEventMask.GDK_KEY_PRESS_MASK |
 439                 GdkEventMask.GDK_KEY_RELEASE_MASK |
 440                 GdkEventMask.GDK_ENTER_NOTIFY_MASK |
 441                 GdkEventMask.GDK_LEAVE_NOTIFY_MASK |
 442                 GdkEventMask.GDK_EXPOSURE_MASK |
 443                 GdkEventMask.GDK_FOCUS_CHANGE_MASK |
 444                 GdkEventMask.GDK_POINTER_MOTION_MASK |
 445                 GdkEventMask.GDK_VISIBILITY_NOTIFY_MASK |
 446                 GdkEventMask.GDK_SUBSTRUCTURE_MASK |
 447                 GdkEventMask.GDK_STRUCTURE_MASK;
 448
 449                 static readonly object lockobj = new object ();
 450
 451                 static Hashtable backing_store = new Hashtable (5);
 452
 453                 #endregion      // Local Variables
 454                 #region Constructors
 455                 private XplatUIX11GTK ()
 456                 {
 457                         Console.WriteLine ("XplatUIX11GTK ctor...");
 458                         // Handle singleton stuff first
 459                         RefCount = 0;
 460
 461                         // init gdk
 462                         gdk_init_check (IntPtr.Zero, IntPtr.Zero);
 463
 464                         // Now regular initialization
 465                         XlibLock = new object ();
 466                         MessageQueue = new XEventQueue ();
 467                         TimerList = new ArrayList ();
 468                         XInitThreads ();
 469
 470                         ErrorExceptions = false;
 471
 472                         // X11 Initialization
 473                         SetDisplay (gdk_x11_display_get_xdisplay (gdk_display_get_default ()));
 474                         X11DesktopColors.Initialize ();
 475
 476                         // Handle any upcoming errors; we re-set it here, X11DesktopColor stuff might have stolen it (gtk does)
 477                         ErrorHandler = new XErrorHandler (HandleError);
 478                         XSetErrorHandler (ErrorHandler);
 479                 }
 480                 #endregion      // Constructors
 481
 482                 #region Singleton Specific Code
 483                 public static XplatUIX11GTK GetInstance ()
 484                 {
 485                         lock (lockobj) {
 486                                 if (Instance == null) {
 487                                         Instance = new XplatUIX11GTK ();
 488                                 }
 489                                 RefCount++;
 490                         }
 491                         return Instance;
 492                 }
 493
 494                 public int Reference {
 495                         get {
 496                                 return RefCount;
 497                         }
 498                 }
 499                 #endregion
 500
 501                 #region Internal Properties
 502                 internal static IntPtr Display {
 503                         get {
 504                                 return DisplayHandle;
 505                         }
 506
 507                         set {
 508                                 XplatUIX11GTK.GetInstance ().SetDisplay (value);
 509                         }
 510                 }
 511
 512                 internal static int Screen {
 513                         get {
 514                                 return ScreenNo;
 515                         }
 516
 517                         set {
 518                                 ScreenNo = value;
 519                         }
 520                 }
 521
 522                 internal static IntPtr RootWindowHandle {
 523                         get {
 524                                 return RootWindow;
 525                         }
 526
 527                         set {
 528                                 RootWindow = value;
 529                         }
 530                 }
 531
 532                 internal static IntPtr Visual {
 533                         get {
 534                                 return CustomVisual;
 535                         }
 536
 537                         set {
 538                                 CustomVisual = value;
 539                         }
 540                 }
 541
 542                 internal static IntPtr ColorMap {
 543                         get {
 544                                 return CustomColormap;
 545                         }
 546
 547                         set {
 548                                 CustomColormap = value;
 549                         }
 550                 }
 551                 #endregion
 552
 553                 #region XExceptionClass
 554                 internal class XException : ApplicationException {
 555                         IntPtr          Display;
 556                         IntPtr          ResourceID;
 557                         IntPtr          Serial;
 558                         XRequest        RequestCode;
 559                         byte            ErrorCode;
 560                         byte            MinorCode;
 561
 562                         public XException (IntPtr Display, IntPtr ResourceID, IntPtr Serial, byte ErrorCode, XRequest RequestCode, byte MinorCode)
 563                         {
 564                                 this.Display = Display;
 565                                 this.ResourceID = ResourceID;
 566                                 this.Serial = Serial;
 567                                 this.RequestCode = RequestCode;
 568                                 this.ErrorCode = ErrorCode;
 569                                 this.MinorCode = MinorCode;
 570                         }
 571
 572                         public override string Message {
 573                                 get {
 574                                         return GetMessage (Display, ResourceID, Serial, ErrorCode, RequestCode, MinorCode);
 575                                 }
 576                         }
 577
 578                         public static string GetMessage (IntPtr Display, IntPtr ResourceID, IntPtr Serial, byte ErrorCode, XRequest RequestCode, byte MinorCode)
 579                         {
 580                                 StringBuilder   sb;
 581                                 string          x_error_text;
 582                                 string          error;
 583
 584                                 sb = new StringBuilder (160);
 585                                 XGetErrorText (Display, ErrorCode, sb, sb.Capacity);
 586                                 x_error_text = sb.ToString ();
 587
 588                                 error = String.Format ("\n  Error: {0}\n  Request:     {1:D} ({2})\n  Resource ID: 0x{3:x}\n  Serial:      {4}", x_error_text, RequestCode, RequestCode, ResourceID.ToInt32 (), Serial);
 589                                 return error;
 590                         }
 591                 }
 592                 #endregion      // XExceptionClass
 593
 594                 #region Internal Methods
 595                 // native X display handle
 596                 internal void SetDisplay (IntPtr display_handle)
 597                 {
 598                         if (display_handle != IntPtr.Zero) {
 599                                 Hwnd    hwnd;
 600
 601                                 if ((GdkDisplayHandle != IntPtr.Zero) && (GdkFosterParent != IntPtr.Zero)) {
 602                                         hwnd = Hwnd.ObjectFromHandle (gdk_x11_drawable_get_xid (GdkFosterParent));
 603                                         gdk_window_destroy (GdkFosterParent);
 604                                         hwnd.Dispose ();
 605                                 }
 606
 607                                 if (GdkDisplayHandle != IntPtr.Zero) {
 608                                         gdk_display_close (GdkDisplayHandle);
 609                                 }
 610
 611                                 DisplayHandle = display_handle;
 612                                 GdkDisplayHandle = gdk_x11_lookup_xdisplay (display_handle);
 613
 614                                 // We need to tell System.Drawing our DisplayHandle. FromHdcInternal has
 615                                 // been hacked to do this for us.
 616                                 Graphics.FromHdcInternal (DisplayHandle);
 617
 618                                 // Debugging support
 619                                 if (Environment.GetEnvironmentVariable ("MONO_XSYNC") != null) {
 620                                         XSynchronize (DisplayHandle, true);
 621                                 }
 622
 623                                 if (Environment.GetEnvironmentVariable ("MONO_XEXCEPTIONS") != null) {
 624                                         ErrorExceptions = true;
 625                                 }
 626
 627                                 // Generic X11 setup
 628                                 GdkScreen = gdk_screen_get_default ();
 629                                 // or gdk_x11_get_default_screen
 630                                 ScreenNo = gdk_screen_get_number (GdkScreen);
 631                                 GdkRootWindow = gdk_get_default_root_window ();
 632                                 RootWindow = gdk_x11_drawable_get_xid (GdkRootWindow);
 633                                 GdkDefaultColormap = gdk_colormap_get_system ();
 634                                 DefaultColormap = gdk_x11_colormap_get_xcolormap (GdkDefaultColormap);
 635
 636                                 VisualBestDepth = gdk_visual_get_best_depth ();
 637                                 //Console.WriteLine (VisualBestDepth);
 638
 639                                 // Create the foster parent
 640                                 FosterParent = XCreateSimpleWindow (DisplayHandle, RootWindow, 0, 0, 1, 1, 4, 0, 0);
 641                                 GdkFosterParent = gdk_window_foreign_new (FosterParent);
 642
 643                                 if (GdkFosterParent == IntPtr.Zero) {
 644                                         Console.WriteLine ("XplatUIX11GTK Constructor failed to create FosterParent");
 645                                 }
 646
 647                                 hwnd = new Hwnd ();
 648
 649                                 hwnd.WholeWindow = FosterParent;
 650                                 hwnd.ClientWindow = FosterParent;
 651
 652                                 // For sleeping on the X11 socket
 653                                 listen = new Socket (AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.IP);
 654                                 IPEndPoint ep = new IPEndPoint (IPAddress.Loopback, 0);
 655                                 listen.Bind (ep);
 656                                 listen.Listen (1);
 657
 658                                 // To wake up when a timer is ready
 659                                 network_buffer = new byte [10];
 660
 661                                 wake = new Socket (AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.IP);
 662                                 wake.Connect (listen.LocalEndPoint);
 663                                 wake_receive = listen.Accept ();
 664
 665                                 #if __MonoCS__
 666                                 pollfds = new Pollfd [2];
 667                                 pollfds [0] = new Pollfd ();
 668                                 pollfds [0].fd = XConnectionNumber (DisplayHandle);
 669                                 pollfds [0].events = PollEvents.POLLIN;
 670
 671                                 pollfds [1] = new Pollfd ();
 672                                 pollfds [1].fd = wake_receive.Handle.ToInt32 ();
 673                                 pollfds [1].events = PollEvents.POLLIN;
 674                                 #endif
 675
 676                                 Keyboard = new X11Keyboard (DisplayHandle);
 677                                 Dnd = new X11Dnd (DisplayHandle);
 678
 679                                 PostQuitState = false;
 680
 681                                 DoubleClickInterval = 500;
 682
 683                                 HoverState.Interval = 500;
 684                                 HoverState.Timer = new Timer ();
 685                                 HoverState.Timer.Enabled = false;
 686                                 HoverState.Timer.Interval = HoverState.Interval;
 687                                 HoverState.Timer.Tick += new EventHandler (MouseHover);
 688                                 HoverState.X = -1;
 689                                 HoverState.Y = -1;
 690
 691                                 ActiveWindow = IntPtr.Zero;
 692                                 FocusWindow = IntPtr.Zero;
 693                                 ModalWindows = new Stack (3);
 694
 695                                 MouseState = MouseButtons.None;
 696                                 MousePosition = new Point (0, 0);
 697
 698                                 Caret.Timer = new Timer ();
 699                                 Caret.Timer.Interval = 500;             // FIXME - where should this number come from?
 700                                 Caret.Timer.Tick += new EventHandler (CaretCallback);
 701
 702                                 SetupAtoms ();
 703
 704                                 // Grab atom changes off the root window to catch certain WM events
 705                                 gdk_window_set_events (GdkRootWindow, (int)GdkEventMask.GDK_PROPERTY_CHANGE_MASK);
 706
 707                                 // Handle any upcoming errors
 708                                 ErrorHandler = new XErrorHandler (HandleError);
 709                                 XSetErrorHandler (ErrorHandler);
 710                         } else {
 711                                 throw new ArgumentNullException ("Display", "Could not open display (X-Server required. Check you DISPLAY environment variable)");
 712                         }
 713                 }
 714
 715                 internal static void Where ()
 716                 {
 717                         Console.WriteLine ("Here: {0}\n", WhereString ());
 718                 }
 719
 720                 internal static string WhereString ()
 721                 {
 722                         StackTrace      stack;
 723                         StackFrame      frame;
 724                         string          newline;
 725                         string          unknown;
 726                         StringBuilder   sb;
 727                         MethodBase      method;
 728
 729                         newline = String.Format ("{0}\t {1} ", Environment.NewLine, Locale.GetText ("at"));
 730                         unknown = Locale.GetText ("<unknown method>");
 731                         sb = new StringBuilder ();
 732                         stack = new StackTrace (true);
 733
 734                         for (int i = 0; i < stack.FrameCount; i++) {
 735                                 frame = stack.GetFrame (i);
 736                                 sb.Append (newline);
 737
 738                                 method = frame.GetMethod ();
 739                                 if (method != null) {
 740                                         #if not
 741                                                 sb.AppendFormat(frame.ToString());
 742                                         #endif
 743                                         if (frame.GetFileLineNumber () != 0) {
 744                                                 sb.AppendFormat ("{0}.{1} () [{2}:{3}]", method.DeclaringType.FullName, method.Name, Path.GetFileName (frame.GetFileName ()), frame.GetFileLineNumber ());
 745                                         } else {
 746                                                 sb.AppendFormat ("{0}.{1} ()", method.DeclaringType.FullName, method.Name);
 747                                         }
 748                                 } else {
 749                                         sb.Append (unknown);
 750                                 }
 751                         }
 752                         return sb.ToString ();
 753                 }
 754                 #endregion      // Internal Methods
 755
 756                 #region Private Methods
 757                 private static void SetupAtoms ()
 758                 {
 759                         NetAtoms = new int [(int)NA.LAST_NET_ATOM];
 760
 761                         NetAtoms [(int)NA.WM_PROTOCOLS] = XInternAtom (DisplayHandle, "WM_PROTOCOLS", false);
 762                         NetAtoms [(int)NA.WM_DELETE_WINDOW] = XInternAtom (DisplayHandle, "WM_DELETE_WINDOW", false);
 763                         NetAtoms [(int)NA.WM_TAKE_FOCUS] = XInternAtom (DisplayHandle, "WM_TAKE_FOCUS", false);
 764
 765                         NetAtoms [(int)NA._NET_SUPPORTED] = XInternAtom (DisplayHandle, "_NET_SUPPORTED", false);
 766                         NetAtoms [(int)NA._NET_CLIENT_LIST] = XInternAtom (DisplayHandle, "_NET_CLIENT_LIST", false);
 767                         NetAtoms [(int)NA._NET_NUMBER_OF_DESKTOPS] = XInternAtom (DisplayHandle, "_NET_NUMBER_OF_DESKTOPS", false);
 768                         NetAtoms [(int)NA._NET_DESKTOP_GEOMETRY] = XInternAtom (DisplayHandle, "_NET_DESKTOP_GEOMETRY", false);
 769                         NetAtoms [(int)NA._NET_DESKTOP_VIEWPORT] = XInternAtom (DisplayHandle, "_NET_DESKTOP_VIEWPORT", false);
 770                         NetAtoms [(int)NA._NET_CURRENT_DESKTOP] = XInternAtom (DisplayHandle, "_NET_CURRENT_DESKTOP", false);
 771                         NetAtoms [(int)NA._NET_DESKTOP_NAMES] = XInternAtom (DisplayHandle, "_NET_DESKTOP_NAMES", false);
 772                         NetAtoms [(int)NA._NET_ACTIVE_WINDOW] = XInternAtom (DisplayHandle, "_NET_ACTIVE_WINDOW", false);
 773                         NetAtoms [(int)NA._NET_WORKAREA] = XInternAtom (DisplayHandle, "_NET_WORKAREA", false);
 774                         NetAtoms [(int)NA._NET_SUPPORTING_WM_CHECK] = XInternAtom (DisplayHandle, "_NET_SUPPORTING_WM_CHECK", false);
 775                         NetAtoms [(int)NA._NET_VIRTUAL_ROOTS] = XInternAtom (DisplayHandle, "_NET_VIRTUAL_ROOTS", false);
 776                         NetAtoms [(int)NA._NET_DESKTOP_LAYOUT] = XInternAtom (DisplayHandle, "_NET_DESKTOP_LAYOUT", false);
 777                         NetAtoms [(int)NA._NET_SHOWING_DESKTOP] = XInternAtom (DisplayHandle, "_NET_SHOWING_DESKTOP", false);
 778
 779                         NetAtoms [(int)NA._NET_CLOSE_WINDOW] = XInternAtom (DisplayHandle, "_NET_CLOSE_WINDOW", false);
 780                         NetAtoms [(int)NA._NET_MOVERESIZE_WINDOW] = XInternAtom (DisplayHandle, "_NET_MOVERESIZE_WINDOW", false);
 781                         NetAtoms [(int)NA._NET_WM_MOVERESIZE] = XInternAtom (DisplayHandle, "_NET_WM_MOVERESIZE", false);
 782                         NetAtoms [(int)NA._NET_RESTACK_WINDOW] = XInternAtom (DisplayHandle, "_NET_RESTACK_WINDOW", false);
 783                         NetAtoms [(int)NA._NET_REQUEST_FRAME_EXTENTS] = XInternAtom (DisplayHandle, "_NET_REQUEST_FRAME_EXTENTS", false);
 784
 785                         NetAtoms [(int)NA._NET_WM_NAME] = XInternAtom (DisplayHandle, "_NET_WM_NAME", false);
 786                         NetAtoms [(int)NA._NET_WM_VISIBLE_NAME] = XInternAtom (DisplayHandle, "_NET_WM_VISIBLE_NAME", false);
 787                         NetAtoms [(int)NA._NET_WM_ICON_NAME] = XInternAtom (DisplayHandle, "_NET_WM_ICON_NAME", false);
 788                         NetAtoms [(int)NA._NET_WM_VISIBLE_ICON_NAME] = XInternAtom (DisplayHandle, "_NET_WM_VISIBLE_ICON_NAME", false);
 789                         NetAtoms [(int)NA._NET_WM_DESKTOP] = XInternAtom (DisplayHandle, "_NET_WM_DESKTOP", false);
 790                         NetAtoms [(int)NA._NET_WM_WINDOW_TYPE] = XInternAtom (DisplayHandle, "_NET_WM_WINDOW_TYPE", false);
 791                         NetAtoms [(int)NA._NET_WM_STATE] = XInternAtom (DisplayHandle, "_NET_WM_STATE", false);
 792                         NetAtoms [(int)NA._NET_WM_ALLOWED_ACTIONS] = XInternAtom (DisplayHandle, "_NET_WM_ALLOWED_ACTIONS", false);
 793                         NetAtoms [(int)NA._NET_WM_STRUT] = XInternAtom (DisplayHandle, "_NET_WM_STRUT", false);
 794                         NetAtoms [(int)NA._NET_WM_STRUT_PARTIAL] = XInternAtom (DisplayHandle, "_NET_WM_STRUT_PARTIAL", false);
 795                         NetAtoms [(int)NA._NET_WM_ICON_GEOMETRY] = XInternAtom (DisplayHandle, "_NET_WM_ICON_GEOMETRY", false);
 796                         NetAtoms [(int)NA._NET_WM_ICON] = XInternAtom (DisplayHandle, "_NET_WM_ICON", false);
 797                         NetAtoms [(int)NA._NET_WM_PID] = XInternAtom (DisplayHandle, "_NET_WM_PID", false);
 798                         NetAtoms [(int)NA._NET_WM_HANDLED_ICONS] = XInternAtom (DisplayHandle, "_NET_WM_HANDLED_ICONS", false);
 799                         NetAtoms [(int)NA._NET_WM_USER_TIME] = XInternAtom (DisplayHandle, "_NET_WM_USER_TIME", false);
 800                         NetAtoms [(int)NA._NET_FRAME_EXTENTS] = XInternAtom (DisplayHandle, "_NET_FRAME_EXTENTS", false);
 801
 802                         NetAtoms [(int)NA._NET_WM_PING] = XInternAtom (DisplayHandle, "_NET_WM_PING", false);
 803                         NetAtoms [(int)NA._NET_WM_SYNC_REQUEST] = XInternAtom (DisplayHandle, "_NET_WM_SYNC_REQUEST", false);
 804
 805                         NetAtoms [(int)NA._NET_SYSTEM_TRAY_S] = XInternAtom (DisplayHandle, "_NET_SYSTEM_TRAY_S" + ScreenNo.ToString (), false);
 806                         NetAtoms [(int)NA._NET_SYSTEM_TRAY_OPCODE] = XInternAtom (DisplayHandle, "_NET_SYSTEM_TRAY_OPCODE", false);
 807                         NetAtoms [(int)NA._NET_SYSTEM_TRAY_ORIENTATION] = XInternAtom (DisplayHandle, "_NET_SYSTEM_TRAY_ORIENTATION", false);
 808
 809                         NetAtoms [(int)NA._NET_WM_STATE_MAXIMIZED_HORZ] = XInternAtom (DisplayHandle, "_NET_WM_STATE_MAXIMIZED_HORZ", false);
 810                         NetAtoms [(int)NA._NET_WM_STATE_MAXIMIZED_VERT] = XInternAtom (DisplayHandle, "_NET_WM_STATE_MAXIMIZED_VERT", false);
 811                         NetAtoms [(int)NA._NET_WM_STATE_HIDDEN] = XInternAtom (DisplayHandle, "_NET_WM_STATE_HIDDEN", false);
 812
 813                         NetAtoms [(int)NA._XEMBED] = XInternAtom (DisplayHandle, "_XEMBED", false);
 814                         NetAtoms [(int)NA._XEMBED_INFO] = XInternAtom (DisplayHandle, "_XEMBED_INFO", false);
 815
 816                         NetAtoms [(int)NA._MOTIF_WM_HINTS] = XInternAtom (DisplayHandle, "_MOTIF_WM_HINTS", false);
 817
 818                         NetAtoms [(int)NA._NET_WM_STATE_NO_TASKBAR] = XInternAtom (DisplayHandle, "_NET_WM_STATE_NO_TASKBAR", false);
 819                         NetAtoms [(int)NA._NET_WM_STATE_ABOVE] = XInternAtom (DisplayHandle, "_NET_WM_STATE_ABOVE", false);
 820                         NetAtoms [(int)NA._NET_WM_STATE_MODAL] = XInternAtom (DisplayHandle, "_NET_WM_STATE_MODAL", false);
 821                         NetAtoms [(int)NA._NET_WM_CONTEXT_HELP] = XInternAtom (DisplayHandle, "_NET_WM_CONTEXT_HELP", false);
 822                         NetAtoms [(int)NA._NET_WM_WINDOW_OPACITY] = XInternAtom (DisplayHandle, "_NET_WM_WINDOW_OPACITY", false);
 823
 824                         // Clipboard support
 825                         NetAtoms [(int)NA.CLIPBOARD] = XInternAtom (DisplayHandle, "CLIPBOARD", false);
 826                         NetAtoms [(int)NA.DIB] = (int)Atom.XA_PIXMAP;
 827                         NetAtoms [(int)NA.OEMTEXT] = XInternAtom (DisplayHandle, "COMPOUND_TEXT", false);
 828                         NetAtoms [(int)NA.UNICODETEXT] = XInternAtom (DisplayHandle, "UTF8_STRING", false);
 829                         NetAtoms [(int)NA.TARGETS] = XInternAtom (DisplayHandle, "TARGETS", false);
 830
 831                         // Special Atoms
 832                         AsyncAtom = XInternAtom (DisplayHandle, "_SWF_AsyncAtom", false);
 833                         PostAtom = XInternAtom (DisplayHandle, "_SWF_PostMessageAtom", false);
 834                         HoverState.Atom = XInternAtom (DisplayHandle, "_SWF_HoverAtom", false);
 835                 }
 836
 837                 private void GetSystrayManagerWindow ()
 838                 {
 839                         gdk_x11_grab_server ();
 840                         SystrayMgrWindow = XGetSelectionOwner (DisplayHandle, NetAtoms [(int)NA._NET_SYSTEM_TRAY_S]);
 841                         gdk_x11_ungrab_server ();
 842                         gdk_display_flush (GdkDisplayHandle);
 843                 }
 844
 845                 private void SendNetWMMessage (IntPtr window, IntPtr message_type, IntPtr l0, IntPtr l1, IntPtr l2)
 846                 {
 847                         XEvent  xev;
 848
 849                         xev = new XEvent ();
 850                         xev.ClientMessageEvent.type = XEventName.ClientMessage;
 851                         xev.ClientMessageEvent.send_event = true;
 852                         xev.ClientMessageEvent.window = window;
 853                         xev.ClientMessageEvent.message_type = message_type;
 854                         xev.ClientMessageEvent.format = 32;
 855                         xev.ClientMessageEvent.ptr1 = l0;
 856                         xev.ClientMessageEvent.ptr2 = l1;
 857                         xev.ClientMessageEvent.ptr3 = l2;
 858                         XSendEvent (DisplayHandle, RootWindow, false, EventMask.SubstructureRedirectMask | EventMask.SubstructureNotifyMask, ref xev);
 859                 }
 860
 861                 private void SendNetClientMessage (IntPtr window, IntPtr message_type, IntPtr l0, IntPtr l1, IntPtr l2)
 862                 {
 863                         XEvent  xev;
 864
 865                         xev = new XEvent ();
 866                         xev.ClientMessageEvent.type = XEventName.ClientMessage;
 867                         xev.ClientMessageEvent.send_event = true;
 868                         xev.ClientMessageEvent.window = window;
 869                         xev.ClientMessageEvent.message_type = message_type;
 870                         xev.ClientMessageEvent.format = 32;
 871                         xev.ClientMessageEvent.ptr1 = l0;
 872                         xev.ClientMessageEvent.ptr2 = l1;
 873                         xev.ClientMessageEvent.ptr3 = l2;
 874                         XSendEvent (DisplayHandle, window, false, EventMask.NoEventMask, ref xev);
 875                 }
 876
 877                 private void DeriveStyles (IntPtr handle, int Style, int ExStyle, out FormBorderStyle border_style, out TitleStyle title_style, out int caption_height, out int tool_caption_height)
 878                 {
 879
 880                         // Only MDI windows get caption_heights
 881                         caption_height = 0;
 882                         tool_caption_height = 19;
 883
 884                         if ((Style & (int) WindowStyles.WS_CHILD) != 0) {
 885                                 if ((Style & (int) WindowStyles.WS_BORDER) == 0) {
 886                                         border_style = FormBorderStyle.None;
 887                                 } else if ((ExStyle & (int) WindowStyles.WS_EX_CLIENTEDGE) != 0) {
 888                                         border_style = FormBorderStyle.Fixed3D;
 889                                 } else {
 890                                         border_style = FormBorderStyle.FixedSingle;
 891                                 }
 892                                 title_style = TitleStyle.None;
 893                         } else {
 894                                 bool is_mdi = false;
 895
 896                                 if ((ExStyle & (int) WindowStyles.WS_EX_MDICHILD) != 0) {
 897                                         caption_height = 26;
 898                                         is_mdi = true;
 899                                 }
 900
 901                                 title_style = TitleStyle.None;
 902                                 if ((Style & (int)WindowStyles.WS_CAPTION) != 0) {
 903                                         if ((ExStyle & (int)WindowStyles.WS_EX_TOOLWINDOW) != 0) {
 904                                                 title_style = TitleStyle.Tool;
 905                                         } else {
 906                                                 title_style = TitleStyle.Normal;
 907                                         }
 908                                 }
 909
 910                                 if (!is_mdi) {
 911                                         border_style = FormBorderStyle.None;
 912
 913                                         if ((Style & (int)WindowStyles.WS_THICKFRAME) != 0) {
 914                                                 if ((ExStyle & (int)WindowStyles.WS_EX_TOOLWINDOW) != 0) {
 915                                                         border_style = FormBorderStyle.SizableToolWindow;
 916                                                 } else {
 917                                                         border_style = FormBorderStyle.Sizable;
 918                                                 }
 919                                         } else {
 920                                                 if ((ExStyle & (int)WindowStyles.WS_EX_CLIENTEDGE) != 0) {
 921                                                         border_style = FormBorderStyle.Fixed3D;
 922                                                 } else if ((ExStyle & (int)WindowStyles.WS_EX_DLGMODALFRAME) != 0) {
 923                                                         border_style = FormBorderStyle.FixedDialog;
 924                                                 } else if ((ExStyle & (int)WindowStyles.WS_EX_TOOLWINDOW) != 0) {
 925                                                         border_style = FormBorderStyle.FixedToolWindow;
 926                                                 } else if ((Style & (int)WindowStyles.WS_BORDER) != 0) {
 927                                                         border_style = FormBorderStyle.Sizable;
 928                                                 } else {
 929                                                         border_style = FormBorderStyle.None;
 930                                                 }
 931                                         }
 932                                 } else {
 933                                         if ((Style & (int) WindowStyles.WS_OVERLAPPEDWINDOW) != 0 ||
 934                                             (ExStyle & (int) WindowStyles.WS_EX_TOOLWINDOW) != 0) {
 935                                                 border_style = (FormBorderStyle) 0xFFFF;
 936                                         } else {
 937                                                 border_style = FormBorderStyle.None;
 938                                         }
 939                                 }
 940                         }
 941                 }
 942
 943                 private void SetHwndStyles (Hwnd hwnd, CreateParams cp)
 944                 {
 945                         DeriveStyles (hwnd.Handle, cp.Style, cp.ExStyle, out hwnd.border_style, out hwnd.title_style, out hwnd.caption_height, out hwnd.tool_caption_height);
 946                 }
 947
 948                 private void SetWMStyles (Hwnd hwnd, CreateParams cp)
 949                 {
 950                         GdkWMDecoration decorations = GdkWMDecoration.GDK_DECOR_ALL;
 951
 952                         if ((cp.Style & (int)WindowStyles.WS_CAPTION) != 0) {
 953                                 decorations |= GdkWMDecoration.GDK_DECOR_TITLE | GdkWMDecoration.GDK_DECOR_MENU;
 954                         }
 955
 956                         if ((cp.Style & ((int)WindowStyles.WS_THICKFRAME)) != 0) {
 957                                 decorations |= GdkWMDecoration.GDK_DECOR_BORDER | GdkWMDecoration.GDK_DECOR_RESIZEH;
 958                         }
 959                         if ((cp.Style & ((int)WindowStyles.WS_MINIMIZEBOX)) != 0) {
 960                                 decorations |= GdkWMDecoration.GDK_DECOR_MINIMIZE;
 961                         }
 962
 963                         if ((cp.Style & ((int)WindowStyles.WS_MAXIMIZEBOX)) != 0) {
 964                                 decorations |= GdkWMDecoration.GDK_DECOR_MAXIMIZE;
 965                         }
 966
 967                         // is this needed ? most window managers do not even honour any MotifFunctions...
 968 //                      if ((cp.Style & ((int)WindowStyles.WS_SYSMENU)) != 0) {
 969 //                              functions |= MotifFunctions.Close;
 970 //                      }
 971
 972                         if ((cp.ExStyle & ((int)WindowStyles.WS_EX_DLGMODALFRAME)) != 0) {
 973                                 decorations |= GdkWMDecoration.GDK_DECOR_BORDER;
 974                         }
 975
 976                         if ((cp.Style & ((int)WindowStyles.WS_DLGFRAME)) != 0) {
 977                                 decorations |= GdkWMDecoration.GDK_DECOR_BORDER;
 978                         }
 979
 980                         if ((cp.Style & ((int)WindowStyles.WS_BORDER)) != 0) {
 981                                 decorations |= GdkWMDecoration.GDK_DECOR_BORDER;
 982                         }
 983
 984                         if ((cp.ExStyle & ((int)WindowStyles.WS_EX_TOOLWINDOW)) != 0) {
 985                                 decorations = 0;
 986                         }
 987
 988                         gdk_window_set_decorations (gdk_window_foreign_new (hwnd.whole_window), (int)decorations);
 989                 }
 990
 991                 private void SetIcon (Hwnd hwnd, Icon icon)
 992                 {
 993                         Bitmap          bitmap;
 994                         int             size;
 995                         uint[]          data;
 996                         int             index;
 997
 998                         bitmap = icon.ToBitmap ();
 999                         index = 0;
1000                         size = bitmap.Width * bitmap.Height + 2;
1001                         data = new uint [size];
1002
1003                         data [index++] = (uint)bitmap.Width;
1004                         data [index++] = (uint)bitmap.Height;
1005
1006                         for (int y = 0; y < bitmap.Height; y++) {
1007                                 for (int x = 0; x < bitmap.Width; x++) {
1008                                         data [index++] = (uint)bitmap.GetPixel (x, y).ToArgb ();
1009                                 }
1010                         }
1011                         XChangeProperty (DisplayHandle, hwnd.whole_window, NetAtoms [(int)NA._NET_WM_ICON], Atom.XA_CARDINAL, 32, PropertyMode.Replace, data, size);
1012                 }
1013
1014                 private IntPtr ImageToPixmap (Image image)
1015                 {
1016                         return IntPtr.Zero;
1017                 }
1018
1019                 private void WakeupMain ()
1020                 {
1021                         wake.Send (new byte    [] { 0xFF });
1022                 }
1023
1024                 private void TranslatePropertyToClipboard (int property)
1025                 {
1026                         Atom                    actual_atom;
1027                         int                     actual_format;
1028                         int                     nitems;
1029                         int                     bytes_after;
1030                         IntPtr                  prop = IntPtr.Zero;
1031
1032                         Clipboard.Item = null;
1033
1034                         XGetWindowProperty (DisplayHandle, FosterParent, property, 0, 0x7fffffff, true, Atom.AnyPropertyType, out actual_atom, out actual_format, out nitems, out bytes_after, ref prop);
1035
1036                         if (nitems > 0) {
1037                                 if (property == (int)Atom.XA_STRING) {
1038                                         Clipboard.Item = Marshal.PtrToStringAnsi (prop);
1039                                 } else if (property == (int)Atom.XA_BITMAP) {
1040                                         // FIXME - convert bitmap to image
1041                                 } else if (property == (int)Atom.XA_PIXMAP) {
1042                                         // FIXME - convert pixmap to image
1043                                 } else if (property == NetAtoms [(int)NA.OEMTEXT]) {
1044                                         Clipboard.Item = Marshal.PtrToStringAnsi (prop);
1045                                 } else if (property == NetAtoms [(int)NA.UNICODETEXT]) {
1046                                         Clipboard.Item = Marshal.PtrToStringAnsi (prop);
1047                                 }
1048
1049                                 XFree (prop);
1050                         }
1051                 }
1052
1053                 private void AddExpose (XEvent xevent)
1054                 {
1055                         Hwnd    hwnd;
1056
1057                         hwnd = Hwnd.GetObjectFromWindow (xevent.AnyEvent.window);
1058
1059                         // Don't waste time
1060                         if (hwnd == null) {
1061                                 return;
1062                         }
1063
1064                         if (xevent.AnyEvent.window == hwnd.client_window) {
1065                                 hwnd.AddInvalidArea (xevent.ExposeEvent.x, xevent.ExposeEvent.y, xevent.ExposeEvent.width, xevent.ExposeEvent.height);
1066                                 if (!hwnd.expose_pending) {
1067                                         MessageQueue.Enqueue (xevent);
1068                                         hwnd.expose_pending = true;
1069                                 }
1070                         } else {
1071                                 if (!hwnd.nc_expose_pending) {
1072                                         MessageQueue.Enqueue (xevent);
1073                                         hwnd.nc_expose_pending = true;
1074                                 }
1075                         }
1076                 }
1077
1078                 private void InvalidateWholeWindow (IntPtr handle)
1079                 {
1080                         Hwnd    hwnd;
1081
1082                         hwnd = Hwnd.ObjectFromHandle (handle);
1083
1084                         InvalidateWholeWindow (handle, new Rectangle (0, 0, hwnd.Width, hwnd.Height));
1085                 }
1086
1087                 private void InvalidateWholeWindow (IntPtr handle, Rectangle rectangle)
1088                 {
1089                         Hwnd    hwnd;
1090                         XEvent  xevent;
1091
1092                         hwnd = Hwnd.ObjectFromHandle (handle);
1093
1094
1095                         xevent = new XEvent ();
1096                         xevent.type = XEventName.Expose;
1097                         xevent.ExposeEvent.display = DisplayHandle;
1098                         xevent.ExposeEvent.window = hwnd.whole_window;
1099
1100                         xevent.ExposeEvent.x = rectangle.X;
1101                         xevent.ExposeEvent.y = rectangle.Y;
1102                         xevent.ExposeEvent.width = rectangle.Width;
1103                         xevent.ExposeEvent.height = rectangle.Height;
1104
1105                         AddExpose (xevent);
1106                 }
1107
1108                 private void WholeToScreen (IntPtr handle, ref int x, ref int y)
1109                 {
1110                         int     dest_x_return;
1111                         int     dest_y_return;
1112                         Hwnd    hwnd;
1113
1114                         hwnd = Hwnd.ObjectFromHandle (handle);
1115
1116                         lock (XlibLock) {
1117                                 gdk_window_get_origin (gdk_window_lookup (hwnd.whole_window), out dest_x_return, out dest_y_return);
1118                         }
1119
1120                         x = dest_x_return;
1121                         y = dest_y_return;
1122                 }
1123
1124                 private void AddConfigureNotify (XEvent xevent)
1125                 {
1126                         Hwnd    hwnd;
1127
1128                         hwnd = Hwnd.GetObjectFromWindow (xevent.ConfigureEvent.window);
1129
1130                         // Don't waste time
1131                         if (hwnd == null) {
1132                                 return;
1133                         }
1134
1135                         if (xevent.ConfigureEvent.window == hwnd.whole_window) {
1136                                 if (!hwnd.reparented) {
1137                                         hwnd.x = xevent.ConfigureEvent.x;
1138                                         hwnd.y = xevent.ConfigureEvent.y;
1139                                 } else {
1140                                         int     dummy_int;
1141
1142                                         gdk_window_get_geometry (gdk_window_lookup (hwnd.whole_window), out hwnd.x, out hwnd.y, out dummy_int, out dummy_int, out dummy_int);
1143                                 }
1144
1145                                 hwnd.width = xevent.ConfigureEvent.width;
1146                                 hwnd.height = xevent.ConfigureEvent.height;
1147
1148                                 if (!hwnd.configure_pending) {
1149                                         MessageQueue.Enqueue (xevent);
1150                                         hwnd.configure_pending = true;
1151                                 }
1152                         }
1153                         // We drop configure events for Client windows
1154                 }
1155
1156                 private void ShowCaret ()
1157                 {
1158                         if ((Caret.gc == IntPtr.Zero) || Caret.On) {
1159                                 return;
1160                         }
1161                         Caret.On = true;
1162
1163                         // gdk_gc_set_foreground
1164                         // gdk_draw_line
1165                         lock (XlibLock) {
1166                                 XDrawLine (DisplayHandle, Caret.Window, Caret.gc, Caret.X, Caret.Y, Caret.X, Caret.Y + Caret.Height);
1167                         }
1168                 }
1169
1170                 private void HideCaret ()
1171                 {
1172                         if ((Caret.gc == IntPtr.Zero) || !Caret.On) {
1173                                 return;
1174                         }
1175                         Caret.On = false;
1176
1177                         // gdk_gc_set_foreground
1178                         // gdk_draw_text_wc
1179                         lock (XlibLock) {
1180                                 XDrawLine (DisplayHandle, Caret.Window, Caret.gc, Caret.X, Caret.Y, Caret.X, Caret.Y + Caret.Height);
1181                         }
1182                 }
1183
1184                 private int NextTimeout (DateTime now)
1185                 {
1186                         int timeout = Int32.MaxValue;
1187                         lock (TimerList) {
1188                                 foreach (Timer timer in TimerList) {
1189                                         int next = (int) (timer.Expires - now).TotalMilliseconds;
1190                                         if (next < 0) {
1191                                                 return 0; // Have a timer that has already expired
1192                                         }
1193
1194                                         if (next < timeout) {
1195                                                 timeout = next;
1196                                         }
1197                                 }
1198                         }
1199                         if (timeout < Timer.Minimum) {
1200                                 timeout = Timer.Minimum;
1201                         }
1202
1203                         return timeout;
1204                 }
1205
1206                 private void CheckTimers (DateTime now)
1207                 {
1208                         lock (TimerList) {
1209                                 int count;
1210
1211                                 count = TimerList.Count;
1212
1213                                 if (count == 0) {
1214                                         return;
1215                                 }
1216
1217                                 for (int i = 0; i < TimerList.Count; i++) {
1218                                         Timer timer;
1219
1220                                         timer = (Timer) TimerList [i];
1221
1222                                         if (timer.Enabled && timer.Expires <= now) {
1223                                                 timer.Update (now);
1224                                                 timer.FireTick ();
1225                                         }
1226                                 }
1227                         }
1228                 }
1229
1230                 private void UpdateMessageQueue ()
1231                 {
1232                         DateTime        now;
1233                         int             pending;
1234
1235                         now = DateTime.Now;
1236
1237                         lock (XlibLock) {
1238                                 pending = XPending (DisplayHandle);
1239                         }
1240
1241                         if (pending == 0) {
1242                                 if (Idle != null) {
1243                                         Idle (this, EventArgs.Empty);
1244                                 }
1245
1246                                 lock (XlibLock) {
1247                                         pending = XPending (DisplayHandle);
1248                                 }
1249                         }
1250
1251                         if (pending == 0) {
1252                                 int     timeout;
1253
1254                                 timeout = NextTimeout (now);
1255                                 if (timeout > 0) {
1256                                         #if __MonoCS__
1257                                         Syscall.poll (pollfds, (uint) pollfds.Length, timeout);
1258                                         // Clean out buffer, so we're not busy-looping on the same data
1259                                         if (pollfds[1].revents != 0) {
1260                                                 wake_receive.Receive(network_buffer, 0, 1, SocketFlags.None);
1261                                         }
1262                                         #endif
1263                                         lock (XlibLock) {
1264                                                 pending = XPending (DisplayHandle);
1265                                         }
1266                                 }
1267                         }
1268
1269                         CheckTimers (now);
1270
1271                         if (pending == 0) {
1272                                 lock (XlibLock) {
1273                                         pending = XPending (DisplayHandle);
1274                                 }
1275                         }
1276
1277                         while (pending > 0) {
1278                                 XEvent xevent = new XEvent ();
1279
1280                                 lock (XlibLock) {
1281                                         XNextEvent (DisplayHandle, ref xevent);
1282                                 }
1283 //Console.WriteLine("Got x event {0}", xevent);
1284                                 switch (xevent.type) {
1285                                 case XEventName.Expose:
1286                                         AddExpose (xevent);
1287                                         break;
1288
1289                                 case XEventName.SelectionClear: {
1290                                                 // Should we do something?
1291                                                 break;
1292                                         }
1293
1294                                 case XEventName.SelectionRequest: {
1295                                                 if (Dnd.HandleSelectionRequestEvent (ref xevent))
1296                                                         break;
1297                                                 XEvent sel_event;
1298
1299                                                 sel_event = new XEvent ();
1300                                                 sel_event.SelectionEvent.type = XEventName.SelectionNotify;
1301                                                 sel_event.SelectionEvent.send_event = true;
1302                                                 sel_event.SelectionEvent.display = DisplayHandle;
1303                                                 sel_event.SelectionEvent.selection = xevent.SelectionRequestEvent.selection;
1304                                                 sel_event.SelectionEvent.target = xevent.SelectionRequestEvent.target;
1305                                                 sel_event.SelectionEvent.requestor = xevent.SelectionRequestEvent.requestor;
1306                                                 sel_event.SelectionEvent.time = xevent.SelectionRequestEvent.time;
1307                                                 sel_event.SelectionEvent.property = 0;
1308
1309                                                 // Seems that some apps support asking for supported types
1310                                                 if (xevent.SelectionEvent.target == NetAtoms [(int)NA.TARGETS]) {
1311                                                         uint[]  atoms;
1312                                                         int     atom_count;
1313
1314                                                         atoms = new uint [5];
1315                                                         atom_count = 0;
1316
1317                                                         if (Clipboard.Item is String) {
1318                                                                 atoms [atom_count++] = (uint)Atom.XA_STRING;
1319                                                                 atoms [atom_count++] = (uint)NetAtoms [(int)NA.OEMTEXT];
1320                                                                 atoms [atom_count++] = (uint)NetAtoms [(int)NA.UNICODETEXT];
1321                                                         } else if (Clipboard.Item is Image) {
1322                                                                 atoms [atom_count++] = (uint)Atom.XA_PIXMAP;
1323                                                                 atoms [atom_count++] = (uint)Atom.XA_BITMAP;
1324                                                         } else {
1325                                                                 // FIXME - handle other types
1326                                                         }
1327
1328                                                         XChangeProperty (DisplayHandle, xevent.SelectionEvent.requestor, xevent.SelectionRequestEvent.property, xevent.SelectionRequestEvent.target, 32, PropertyMode.Replace, atoms, atom_count);
1329                                                 } else if (Clipboard.Item is string) {
1330                                                         IntPtr  buffer;
1331                                                         int     buflen;
1332
1333                                                         buflen = 0;
1334
1335                                                         if (xevent.SelectionRequestEvent.target == (int)Atom.XA_STRING) {
1336                                                                 Byte[] bytes;
1337
1338                                                                 bytes = new ASCIIEncoding ().GetBytes ((string)Clipboard.Item);
1339                                                                 buffer = Marshal.AllocHGlobal (bytes.Length);
1340                                                                 buflen = bytes.Length;
1341
1342                                                                 for (int i = 0; i < buflen; i++) {
1343                                                                         Marshal.WriteByte (buffer, i, bytes [i]);
1344                                                                 }
1345                                                         } else if (xevent.SelectionRequestEvent.target == NetAtoms [(int)NA.OEMTEXT]) {
1346                                                                 // FIXME - this should encode into ISO2022
1347                                                                 buffer = Marshal.StringToHGlobalAnsi ((string)Clipboard.Item);
1348                                                                 while (Marshal.ReadByte (buffer, buflen) != 0) {
1349                                                                         buflen++;
1350                                                                 }
1351                                                         } else if (xevent.SelectionRequestEvent.target == NetAtoms [(int)NA.UNICODETEXT]) {
1352                                                                 buffer = Marshal.StringToHGlobalAnsi ((string)Clipboard.Item);
1353                                                                 while (Marshal.ReadByte (buffer, buflen) != 0) {
1354                                                                         buflen++;
1355                                                                 }
1356                                                         } else {
1357                                                                 buffer = IntPtr.Zero;
1358                                                         }
1359
1360                                                         if (buffer != IntPtr.Zero) {
1361                                                                 XChangeProperty (DisplayHandle, xevent.SelectionRequestEvent.requestor, xevent.SelectionRequestEvent.property, xevent.SelectionRequestEvent.target, 8, PropertyMode.Replace, buffer, buflen);
1362                                                                 sel_event.SelectionEvent.property = xevent.SelectionRequestEvent.property;
1363                                                                 Marshal.FreeHGlobal (buffer);
1364                                                         }
1365                                                 } else if (Clipboard.Item is Image) {
1366                                                         if (xevent.SelectionEvent.target == (int)Atom.XA_PIXMAP) {
1367                                                                 // FIXME - convert image and store as property
1368                                                         } else if (xevent.SelectionEvent.target == (int)Atom.XA_PIXMAP) {
1369                                                                 // FIXME - convert image and store as property
1370                                                         }
1371                                                 }
1372
1373                                                 XSendEvent (DisplayHandle, xevent.SelectionRequestEvent.requestor, false, EventMask.NoEventMask, ref sel_event);
1374                                                 break;
1375                                         }
1376
1377                                 case XEventName.SelectionNotify: {
1378                                                 if (Clipboard.Enumerating) {
1379                                                         Clipboard.Enumerating = false;
1380                                                         if (xevent.SelectionEvent.property != 0) {
1381                                                                 XDeleteProperty (DisplayHandle, FosterParent, xevent.SelectionEvent.property);
1382                                                                 if (!Clipboard.Formats.Contains (xevent.SelectionEvent.property)) {
1383                                                                         Clipboard.Formats.Add (xevent.SelectionEvent.property);
1384                                                                         #if DriverDebugExtra
1385                                                                                 Console.WriteLine("Got supported clipboard atom format: {0}", xevent.SelectionEvent.property);
1386                                                                         #endif
1387                                                                 }
1388                                                         }
1389                                                 } else if (Clipboard.Retrieving) {
1390                                                         Clipboard.Retrieving = false;
1391                                                         if (xevent.SelectionEvent.property != 0) {
1392                                                                 TranslatePropertyToClipboard (xevent.SelectionEvent.property);
1393                                                         } else {
1394                                                                 Clipboard.Item = null;
1395                                                         }
1396                                                 } else {
1397                                                         Dnd.HandleSelectionNotifyEvent (ref xevent);
1398                                                 }
1399                                                 break;
1400                                         }
1401
1402                                 case XEventName.KeyPress:
1403                                 case XEventName.KeyRelease:
1404                                 case XEventName.ButtonPress:
1405                                 case XEventName.ButtonRelease:
1406                                 case XEventName.MotionNotify:
1407                                 case XEventName.EnterNotify:
1408                                 case XEventName.LeaveNotify:
1409                                 case XEventName.CreateNotify:
1410                                 case XEventName.DestroyNotify:
1411                                 case XEventName.FocusIn:
1412                                 case XEventName.FocusOut:
1413                                 case XEventName.ClientMessage:
1414                                 case XEventName.ReparentNotify:
1415                                         MessageQueue.Enqueue (xevent);
1416                                         break;
1417
1418                                 case XEventName.ConfigureNotify:
1419                                         AddConfigureNotify (xevent);
1420                                         break;
1421
1422                                 case XEventName.PropertyNotify:
1423                                         if (xevent.PropertyEvent.atom == NetAtoms [(int)NA._NET_ACTIVE_WINDOW]) {
1424                                                 Atom    actual_atom;
1425                                                 int     actual_format;
1426                                                 int     nitems;
1427                                                 int     bytes_after;
1428                                                 IntPtr  prop = IntPtr.Zero;
1429                                                 IntPtr  prev_active;;
1430
1431                                                 prev_active = ActiveWindow;
1432                                                 XGetWindowProperty (DisplayHandle, RootWindow, NetAtoms [(int)NA._NET_ACTIVE_WINDOW], 0, 1, false, Atom.XA_WINDOW, out actual_atom, out actual_format, out nitems, out bytes_after, ref prop);
1433                                                 if ((nitems > 0) && (prop != IntPtr.Zero)) {
1434                                                         ActiveWindow = Hwnd.GetHandleFromWindow ((IntPtr)Marshal.ReadInt32 (prop));
1435                                                         XFree (prop);
1436
1437                                                         if (prev_active != ActiveWindow) {
1438                                                                 if (prev_active != IntPtr.Zero) {
1439                                                                         PostMessage (prev_active, Msg.WM_ACTIVATE, (IntPtr)WindowActiveFlags.WA_INACTIVE, IntPtr.Zero);
1440                                                                 }
1441                                                                 if (ActiveWindow != IntPtr.Zero) {
1442                                                                         PostMessage (ActiveWindow, Msg.WM_ACTIVATE, (IntPtr)WindowActiveFlags.WA_ACTIVE, IntPtr.Zero);
1443                                                                 }
1444                                                         }
1445                                                         if (ModalWindows.Count == 0) {
1446                                                                 break;
1447                                                         } else {
1448                                                                 // Modality handling, if we are modal and the new active window is one
1449                                                                 // of ours but not the modal one, switch back to the modal window
1450
1451                                                                 if (NativeWindow.FindWindow (ActiveWindow) != null) {
1452                                                                         if (ActiveWindow != (IntPtr)ModalWindows.Peek ()) {
1453                                                                                 Activate ((IntPtr)ModalWindows.Peek ());
1454                                                                         }
1455                                                                 }
1456                                                                 break;
1457                                                         }
1458                                                 }
1459                                         }
1460                                         break;
1461
1462                                 }
1463
1464                                 lock (XlibLock) {
1465                                         pending = XPending (DisplayHandle);
1466                                 }
1467                         }
1468                 }
1469
1470                 private IntPtr GetMousewParam (int Delta)
1471                 {
1472                         int     result = 0;
1473
1474                         if ((MouseState & MouseButtons.Left) != 0) {
1475                                 result |= (int)MsgButtons.MK_LBUTTON;
1476                         }
1477
1478                         if ((MouseState & MouseButtons.Middle) != 0) {
1479                                 result |= (int)MsgButtons.MK_MBUTTON;
1480                         }
1481
1482                         if ((MouseState & MouseButtons.Right) != 0) {
1483                                 result |= (int)MsgButtons.MK_RBUTTON;
1484                         }
1485
1486                         Keys mods = ModifierKeys;
1487                         if ((mods & Keys.Control) != 0) {
1488                                 result |= (int)MsgButtons.MK_CONTROL;
1489                         }
1490
1491                         if ((mods & Keys.Shift) != 0) {
1492                                 result |= (int)MsgButtons.MK_SHIFT;
1493                         }
1494
1495                         result |= Delta << 16;
1496
1497                         return (IntPtr)result;
1498                 }
1499                 private IntPtr XGetParent (IntPtr handle)
1500                 {
1501                         return gdk_x11_drawable_get_xid (gdk_window_get_parent (gdk_window_lookup (handle)));
1502                 }
1503
1504                 private int HandleError (IntPtr display, ref XErrorEvent error_event)
1505                 {
1506                         if (ErrorExceptions) {
1507                                 throw new XException (error_event.display, error_event.resourceid, error_event.serial, error_event.error_code, error_event.request_code, error_event.minor_code);
1508                         } else {
1509                                 Console.WriteLine ("X11 Error encountered: {0}{1}\n", XException.GetMessage (error_event.display, error_event.resourceid, error_event.serial, error_event.error_code, error_event.request_code, error_event.minor_code), WhereString ());
1510                         }
1511                         return 0;
1512                 }
1513
1514                 private void DestroyChildWindow (Control c)
1515                 {
1516                         Hwnd            hwnd;
1517                         int             i;
1518                         Control[]       controls;
1519
1520                         if (c != null) {
1521                                 controls = c.child_controls.GetAllControls ();
1522
1523                                 for (i = 0; i < controls.Length; i++) {
1524                                         if (controls [i].IsHandleCreated) {
1525                                                 hwnd = Hwnd.ObjectFromHandle (controls [i].Handle);
1526                                                 SendMessage (controls [i].Handle, Msg.WM_DESTROY, IntPtr.Zero, IntPtr.Zero);
1527                                                 hwnd.Dispose ();
1528                                         }
1529                                         DestroyChildWindow (controls [i]);
1530                                 }
1531                         }
1532                 }
1533
1534                 #endregion      // Private Methods
1535
1536                 #region Callbacks
1537                 private void MouseHover (object sender, EventArgs e)
1538                 {
1539                         if ((HoverState.X == MousePosition.X) && (HoverState.Y == MousePosition.Y)) {
1540                                 XEvent xevent;
1541
1542                                 HoverState.Timer.Enabled = false;
1543
1544                                 if (HoverState.Window != IntPtr.Zero) {
1545                                         xevent = new XEvent ();
1546
1547                                         xevent.type = XEventName.ClientMessage;
1548                                         xevent.ClientMessageEvent.display = DisplayHandle;
1549                                         xevent.ClientMessageEvent.window = (IntPtr)HoverState.Window;
1550                                         xevent.ClientMessageEvent.message_type = (IntPtr)HoverState.Atom;
1551                                         xevent.ClientMessageEvent.format = 32;
1552                                         xevent.ClientMessageEvent.ptr1 = (IntPtr) (HoverState.Y << 16 | HoverState.X);
1553
1554                                         MessageQueue.EnqueueLocked (xevent);
1555
1556                                         WakeupMain ();
1557                                 }
1558                         }
1559                 }
1560
1561                 private void CaretCallback (object sender, EventArgs e)
1562                 {
1563                         if (Caret.Paused) {
1564                                 return;
1565                         }
1566                         Caret.On = !Caret.On;
1567
1568                         XDrawLine (DisplayHandle, Caret.Hwnd, Caret.gc, Caret.X, Caret.Y, Caret.X, Caret.Y + Caret.Height);
1569                 }
1570                 #endregion      // Callbacks
1571
1572                 #region Public Properties
1573
1574                 internal override int Caption {
1575                         get {
1576                                 return 25;
1577                         }
1578                 }
1579
1580                 internal override Size CursorSize {
1581                         get {
1582                                 uint    x;
1583                                 uint    y;
1584                                 gdk_display_get_maximal_cursor_size (GdkDisplayHandle, out x, out y);
1585
1586                                 return new Size ((int)x, (int)y);
1587                         }
1588                 }
1589
1590                 internal override  bool DragFullWindows {
1591                         get {
1592                                 return true;
1593                         }
1594                 }
1595
1596                 internal override  Size DragSize {
1597                         get {
1598                                 return new Size (4, 4);
1599                         }
1600                 }
1601
1602                 internal override  Size FrameBorderSize {
1603                         get {
1604                                 throw new NotImplementedException ();
1605                         }
1606                 }
1607
1608                 internal override  Size IconSize {
1609                         get {
1610                                 IntPtr          list;
1611                                 XIconSize       size;
1612                                 int             count;
1613
1614                                 if (XGetIconSizes (DisplayHandle, RootWindow, out list, out count) != 0) {
1615                                         long            current;
1616                                         int             largest;
1617
1618                                         current = (long)list;
1619                                         largest = 0;
1620
1621                                         size = new XIconSize ();
1622
1623                                         for (int i = 0; i < count; i++) {
1624                                                 size = (XIconSize)Marshal.PtrToStructure ((IntPtr)current, size.GetType ());
1625                                                 current += Marshal.SizeOf (size);
1626
1627                                                 // Look for our preferred size
1628                                                 if (size.min_width == 32) {
1629                                                         XFree (list);
1630                                                         return new Size (32, 32);
1631                                                 }
1632
1633                                                 if (size.max_width == 32) {
1634                                                         XFree (list);
1635                                                         return new Size (32, 32);
1636                                                 }
1637
1638                                                 if (size.min_width < 32 && size.max_width > 32) {
1639                                                         int     x;
1640
1641                                                         // check if we can fit one
1642                                                         x = size.min_width;
1643                                                         while (x < size.max_width) {
1644                                                                 x += size.width_inc;
1645                                                                 if (x == 32) {
1646                                                                         XFree (list);
1647                                                                         return new Size (32, 32);
1648                                                                 }
1649                                                         }
1650                                                 }
1651
1652                                                 if (largest < size.max_width) {
1653                                                         largest = size.max_width;
1654                                                 }
1655                                         }
1656
1657                                         // We didn't find a match or we wouldn't be here
1658                                         return new Size (largest, largest);
1659
1660                                 } else {
1661                                         return new Size (32, 32);
1662                                 }
1663                         }
1664                 }
1665
1666                 internal override int KeyboardSpeed {
1667                         get {
1668                                 //
1669                                 // A lot harder: need to do:
1670                                 // XkbQueryExtension(0x08051008, 0xbfffdf4c, 0xbfffdf50, 0xbfffdf54, 0xbfffdf58)       = 1
1671                                 // XkbAllocKeyboard(0x08051008, 0xbfffdf4c, 0xbfffdf50, 0xbfffdf54, 0xbfffdf58)        = 0x080517a8
1672                                 // XkbGetControls(0x08051008, 1, 0x080517a8, 0xbfffdf54, 0xbfffdf58)                   = 0
1673                                 //
1674                                 // And from that we can tell the repetition rate
1675                                 //
1676                                 // Notice, the values must map to:
1677                                 //   [0, 31] which maps to 2.5 to 30 repetitions per second.
1678                                 //
1679                                 return 0;
1680                         }
1681                 }
1682
1683                 internal override int KeyboardDelay {
1684                         get {
1685                                 //
1686                                 // Return values must range from 0 to 4, 0 meaning 250ms,
1687                                 // and 4 meaning 1000 ms.
1688                                 //
1689                                 return 1; // ie, 500 ms
1690                         }
1691                 }
1692
1693                 internal override  Size MaxWindowTrackSize {
1694                         get {
1695                                 return new Size (WorkingArea.Width, WorkingArea.Height);
1696                         }
1697                 }
1698
1699                 internal override  Size MinimizedWindowSize {
1700                         get {
1701                                 return new Size (1, 1);
1702                         }
1703                 }
1704
1705                 internal override  Size MinimizedWindowSpacingSize {
1706                         get {
1707                                 return new Size (1, 1);
1708                         }
1709                 }
1710
1711                 internal override  Size MinimumWindowSize {
1712                         get {
1713                                 return new Size (1, 1);
1714                         }
1715                 }
1716
1717                 internal override  Size MinWindowTrackSize {
1718                         get {
1719                                 return new Size (1, 1);
1720                         }
1721                 }
1722
1723                 internal override Keys ModifierKeys {
1724                         get {
1725                                 return Keyboard.ModifierKeys;
1726                         }
1727                 }
1728
1729                 internal override  Size SmallIconSize {
1730                         get {
1731                                 IntPtr          list;
1732                                 XIconSize       size;
1733                                 int             count;
1734
1735                                 if (XGetIconSizes (DisplayHandle, RootWindow, out list, out count) != 0) {
1736                                         long            current;
1737                                         int             smallest;
1738
1739                                         current = (long)list;
1740                                         smallest = 0;
1741
1742                                         size = new XIconSize ();
1743
1744                                         for (int i = 0; i < count; i++) {
1745                                                 size = (XIconSize)Marshal.PtrToStructure ((IntPtr)current, size.GetType ());
1746                                                 current += Marshal.SizeOf (size);
1747
1748                                                 // Look for our preferred size
1749                                                 if (size.min_width == 16) {
1750                                                         XFree (list);
1751                                                         return new Size (16, 16);
1752                                                 }
1753
1754                                                 if (size.max_width == 16) {
1755                                                         XFree (list);
1756                                                         return new Size (16, 16);
1757                                                 }
1758
1759                                                 if (size.min_width < 16 && size.max_width > 16) {
1760                                                         int     x;
1761
1762                                                         // check if we can fit one
1763                                                         x = size.min_width;
1764                                                         while (x < size.max_width) {
1765                                                                 x += size.width_inc;
1766                                                                 if (x == 16) {
1767                                                                         XFree (list);
1768                                                                         return new Size (16, 16);
1769                                                                 }
1770                                                         }
1771                                                 }
1772
1773                                                 if (smallest == 0 || smallest > size.min_width) {
1774                                                         smallest = size.min_width;
1775                                                 }
1776                                         }
1777
1778                                         // We didn't find a match or we wouldn't be here
1779                                         return new Size (smallest, smallest);
1780
1781                                 } else {
1782                                         return new Size (16, 16);
1783                                 }
1784                         }
1785                 }
1786
1787                 internal override  int MouseButtonCount {
1788                         get {
1789                                 return 3;
1790                         }
1791                 }
1792
1793                 internal override  bool MouseButtonsSwapped {
1794                         get {
1795                                 return false;   // FIXME - how to detect?
1796                         }
1797                 }
1798
1799                 internal override  bool MouseWheelPresent {
1800                         get {
1801                                 return true;    // FIXME - how to detect?
1802                         }
1803                 }
1804
1805                 internal override  Rectangle VirtualScreen {
1806                         get {
1807                                 return WorkingArea;
1808                         }
1809                 }
1810
1811                 internal override  Rectangle WorkingArea {
1812                         get {
1813                                 Atom                    actual_atom;
1814                                 int                     actual_format;
1815                                 int                     nitems;
1816                                 int                     bytes_after;
1817                                 IntPtr                  prop = IntPtr.Zero;
1818                                 int                     width;
1819                                 int                     height;
1820
1821                                 XGetWindowProperty (DisplayHandle, RootWindow, NetAtoms [(int)NA._NET_DESKTOP_GEOMETRY], 0, 256, false, Atom.XA_CARDINAL, out actual_atom, out actual_format, out nitems, out bytes_after, ref prop);
1822                                 if ((nitems == 2) && (prop != IntPtr.Zero)) {
1823                                         width = Marshal.ReadInt32 (prop, 0);
1824                                         height = Marshal.ReadInt32 (prop, 4);
1825
1826                                         XFree (prop);
1827                                         return new Rectangle (0, 0, width, height);
1828                                 } else {
1829                                         XWindowAttributes       attributes=new XWindowAttributes ();
1830
1831                                         lock (XlibLock) {
1832                                                 XGetWindowAttributes (DisplayHandle, XRootWindow (DisplayHandle, ScreenNo), ref attributes);
1833                                         }
1834
1835                                         return new Rectangle (0, 0, attributes.width, attributes.height);
1836                                 }
1837                         }
1838                 }
1839                 #endregion      // Public properties
1840
1841                 #region Public Static Methods
1842                 internal override IntPtr InitializeDriver ()
1843                 {
1844                         lock (this) {
1845                                 if (GdkDisplayHandle == IntPtr.Zero) {
1846                                         SetDisplay (gdk_x11_display_get_xdisplay (gdk_display_get_default ()));
1847                                 }
1848                         }
1849                         return IntPtr.Zero;
1850                 }
1851
1852                 internal override void ShutdownDriver (IntPtr token)
1853                 {
1854                         lock (this) {
1855                                 if (GdkDisplayHandle != IntPtr.Zero) {
1856                                         gdk_display_close (GdkDisplayHandle);
1857                                         DisplayHandle = IntPtr.Zero;
1858                                         GdkDisplayHandle = IntPtr.Zero;
1859                                 }
1860                         }
1861                 }
1862
1863                 internal override void EnableThemes ()
1864                 {
1865                         ThemesEnabled = true;
1866                 }
1867
1868
1869                 internal override void Activate (IntPtr handle)
1870                 {
1871                         Hwnd hwnd;
1872
1873                         hwnd = Hwnd.ObjectFromHandle (handle);
1874
1875                         if (hwnd != null) lock (XlibLock) {
1876                                         SendNetWMMessage (hwnd.whole_window, (IntPtr)NetAtoms [(int)NA._NET_ACTIVE_WINDOW], IntPtr.Zero, IntPtr.Zero, IntPtr.Zero);
1877                                         //XRaiseWindow(DisplayHandle, handle);
1878                                 }
1879                         return;
1880                 }
1881
1882                 internal override void AudibleAlert ()
1883                 {
1884                         gdk_display_beep (gdk_x11_lookup_xdisplay (DisplayHandle));
1885                         return;
1886                 }
1887
1888
1889                 internal override void CaretVisible (IntPtr handle, bool visible)
1890                 {
1891                         // Visible is cumulative; two hides require two shows before the caret is visible again
1892                         if (Caret.Hwnd == handle) {
1893                                 if (visible) {
1894                                         if (Caret.Visible < 1) {
1895                                                 Caret.Visible++;
1896                                                 Caret.On = false;
1897                                                 if (Caret.Visible == 1) {
1898                                                         ShowCaret ();
1899                                                         Caret.Timer.Start ();
1900                                                 }
1901                                         }
1902                                 } else {
1903                                         Caret.Visible--;
1904                                         if (Caret.Visible == 0) {
1905                                                 Caret.Timer.Stop ();
1906                                                 HideCaret ();
1907                                         }
1908                                 }
1909                         }
1910                 }
1911
1912                 internal override bool CalculateWindowRect (IntPtr handle, ref Rectangle ClientRect, int Style, int ExStyle, Menu menu, out Rectangle WindowRect)
1913                 {
1914                         FormBorderStyle border_style;
1915                         TitleStyle      title_style;
1916                         int caption_height;
1917                         int tool_caption_height;
1918
1919                         DeriveStyles (handle, Style, ExStyle, out border_style, out title_style,
1920                                       out caption_height, out tool_caption_height);
1921
1922                         WindowRect = Hwnd.GetWindowRectangle (border_style, menu, title_style,
1923                                                               caption_height, tool_caption_height,
1924                                                               ClientRect);
1925
1926                         return true;
1927                 }
1928
1929                 internal override void ClientToScreen (IntPtr handle, ref int x, ref int y)
1930                 {
1931                         int     dest_x_return;
1932                         int     dest_y_return;
1933                         IntPtr  child;
1934                         Hwnd    hwnd;
1935
1936                         hwnd = Hwnd.ObjectFromHandle (handle);
1937
1938                         lock (XlibLock) {
1939                                 XTranslateCoordinates (DisplayHandle, hwnd.client_window, RootWindow, x, y, out dest_x_return, out dest_y_return, out child);
1940                         }
1941
1942                         x = dest_x_return;
1943                         y = dest_y_return;
1944                 }
1945
1946                 internal override int[] ClipboardAvailableFormats (IntPtr handle)
1947                 {
1948                         DataFormats.Format      f;
1949                         int[]                   result;
1950
1951                         f = DataFormats.Format.List;
1952
1953                         if (XGetSelectionOwner (DisplayHandle, NetAtoms [(int)NA.CLIPBOARD]) == IntPtr.Zero) {
1954                                 return null;
1955                         }
1956
1957                         Clipboard.Formats = new ArrayList ();
1958
1959                         while (f != null) {
1960                                 XConvertSelection (DisplayHandle, NetAtoms [(int)NA.CLIPBOARD], f.Id, f.Id, FosterParent, IntPtr.Zero);
1961
1962                                 Clipboard.Enumerating = true;
1963                                 while (Clipboard.Enumerating) {
1964                                         UpdateMessageQueue ();
1965                                 }
1966                                 f = f.Next;
1967                         }
1968
1969                         result = new int [Clipboard.Formats.Count];
1970
1971                         for (int i = 0; i < Clipboard.Formats.Count; i++) {
1972                                 result [i] = (int)Clipboard.Formats [i];
1973                         }
1974
1975                         Clipboard.Formats = null;
1976                         return result;
1977                 }
1978
1979                 internal override void ClipboardClose (IntPtr handle)
1980                 {
1981                         if (handle != ClipMagic) {
1982                                 throw new ArgumentException ("handle is not a valid clipboard handle");
1983                         }
1984                         return;
1985                 }
1986
1987                 internal override int ClipboardGetID (IntPtr handle, string format)
1988                 {
1989                         if (handle != ClipMagic) {
1990                                 throw new ArgumentException ("handle is not a valid clipboard handle");
1991                         }
1992
1993                         if (format == "Text") return (int)Atom.XA_STRING;
1994                         else if (format == "Bitmap") return (int)Atom.XA_BITMAP;
1995                         //else if (format == "MetaFilePict" ) return 3;
1996                         //else if (format == "SymbolicLink" ) return 4;
1997                         //else if (format == "DataInterchangeFormat" ) return 5;
1998                         //else if (format == "Tiff" ) return 6;
1999                         else if (format == "OEMText") return XInternAtom (DisplayHandle, "COMPOUND_TEXT", false);
2000                         else if (format == "DeviceIndependentBitmap") return (int)Atom.XA_PIXMAP;
2001                         else if (format == "Palette") return (int)Atom.XA_COLORMAP;     // Useless
2002                         //else if (format == "PenData" ) return 10;
2003                         //else if (format == "RiffAudio" ) return 11;
2004                         //else if (format == "WaveAudio" ) return 12;
2005                         else if (format == "UnicodeText") return XInternAtom (DisplayHandle, "UTF8_STRING", false);
2006                         //else if (format == "EnhancedMetafile" ) return 14;
2007                         //else if (format == "FileDrop" ) return 15;
2008                         //else if (format == "Locale" ) return 16;
2009
2010                         return XInternAtom (DisplayHandle, format, false);
2011                 }
2012
2013                 internal override IntPtr ClipboardOpen ()
2014                 {
2015                         return ClipMagic;
2016                 }
2017
2018                 internal override object ClipboardRetrieve (IntPtr handle, int type, XplatUI.ClipboardToObject converter)
2019                 {
2020                         XConvertSelection (DisplayHandle, NetAtoms [(int)NA.CLIPBOARD], type, type, FosterParent, IntPtr.Zero);
2021
2022                         Clipboard.Retrieving = true;
2023                         while (Clipboard.Retrieving) {
2024                                 UpdateMessageQueue ();
2025                         }
2026
2027                         return Clipboard.Item;
2028                 }
2029
2030                 internal override void ClipboardStore (IntPtr handle, object obj, int type, XplatUI.ObjectToClipboard converter)
2031                 {
2032                         Clipboard.Item = obj;
2033                         Clipboard.Type = type;
2034                         Clipboard.Converter = converter;
2035
2036                         if (obj != null) {
2037                                 XSetSelectionOwner (DisplayHandle, NetAtoms [(int)NA.CLIPBOARD], FosterParent, IntPtr.Zero);
2038                         } else {
2039                                 // Clearing the selection
2040                                 XSetSelectionOwner (DisplayHandle, NetAtoms [(int)NA.CLIPBOARD], IntPtr.Zero, IntPtr.Zero);
2041                         }
2042                 }
2043
2044                 internal override void CreateCaret (IntPtr handle, int width, int height)
2045                 {
2046                         XGCValues       gc_values;
2047                         Hwnd            hwnd;
2048
2049                         hwnd = Hwnd.ObjectFromHandle (handle);
2050
2051                         if (Caret.Hwnd != IntPtr.Zero) {
2052                                 DestroyCaret (Caret.Hwnd);
2053                         }
2054
2055                         Caret.Hwnd = handle;
2056                         Caret.Window = hwnd.client_window;
2057                         Caret.Width = width;
2058                         Caret.Height = height;
2059                         Caret.Visible = 0;
2060                         Caret.On = false;
2061
2062                         gc_values = new XGCValues ();
2063                         gc_values.line_width = width;
2064
2065                         Caret.gc = XCreateGC (DisplayHandle, Caret.Window, GCFunction.GCLineWidth, ref gc_values);
2066                         if (Caret.gc == IntPtr.Zero) {
2067                                 Caret.Hwnd = IntPtr.Zero;
2068                                 return;
2069                         }
2070
2071                         XSetFunction (DisplayHandle, Caret.gc, GXFunction.GXinvert);
2072                 }
2073
2074                 internal override IntPtr CreateWindow (CreateParams cp)
2075                 {
2076                         GdkWindowAttr           gdk_window_attributes;
2077                         GdkWindowAttributesType attributes_mask = 0;
2078                         Hwnd                    hwnd;
2079                         int                     X;
2080                         int                     Y;
2081                         int                     Width;
2082                         int                     Height;
2083                         IntPtr                  GdkParentHandle;
2084                         IntPtr                  GdkWholeWindow;
2085                         IntPtr                  GdkClientWindow;
2086                         Rectangle               ClientRect;
2087                         GdkWindowType           gdk_window_type;
2088
2089
2090                         hwnd = new Hwnd ();
2091
2092                         gdk_window_attributes = new GdkWindowAttr ();
2093
2094                         X = cp.X;
2095                         Y = cp.Y;
2096                         Width = cp.Width;
2097                         Height = cp.Height;
2098
2099                         if (Width < 1) Width = 1;
2100                         if (Height < 1) Height = 1;
2101
2102                         gdk_window_type = GdkWindowType.GDK_WINDOW_CHILD;
2103
2104                         if (cp.Parent != IntPtr.Zero) {
2105                                 GdkParentHandle = gdk_window_lookup (Hwnd.ObjectFromHandle (cp.Parent).client_window);
2106                         } else {
2107                                 if ((cp.Style & (int)WindowStyles.WS_CHILD) != 0) {
2108                                         // We need to use our foster parent window until this poor child gets it's parent assigned
2109                                         GdkParentHandle = GdkFosterParent;
2110                                 } else if ((cp.Style & (int)WindowStyles.WS_POPUP) != 0) {
2111                                         GdkParentHandle = GdkRootWindow;
2112                                 } else {
2113                                         // Default position on screen, if window manager doesn't place us somewhere else
2114                                         if (X < 1) X = 50;
2115                                         if (Y < 1) Y = 50;
2116                                         GdkParentHandle = GdkRootWindow;
2117                                 }
2118                         }
2119
2120 //                      ValueMask = SetWindowValuemask.BitGravity | SetWindowValuemask.WinGravity;
2121
2122 //                      Attributes.bit_gravity = Gravity.NorthWestGravity;
2123 //                      Attributes.win_gravity = Gravity.NorthWestGravity;
2124
2125                         // FIXME: does gdk need that ?
2126                         // Save what's under the toolwindow
2127                         if ((cp.ExStyle & (int)WindowStyles.WS_EX_TOOLWINDOW) != 0) {
2128 //                              Attributes.save_under = true;
2129 //                              ValueMask |= SetWindowValuemask.SaveUnder;
2130                         }
2131
2132                         // If we're a popup without caption we override the WM
2133                         if ((cp.Style & ((int)WindowStyles.WS_POPUP)) != 0) {
2134                                 if ((cp.Style & (int)WindowStyles.WS_CAPTION) == 0) {
2135                                         gdk_window_attributes.override_redirect = true;
2136                                         attributes_mask |= GdkWindowAttributesType.GDK_WA_NOREDIR;
2137                                 }
2138                         }
2139
2140                         hwnd.x = X;
2141                         hwnd.y = Y;
2142                         hwnd.width = Width;
2143                         hwnd.height = Height;
2144                         hwnd.parent = Hwnd.ObjectFromHandle (cp.Parent);
2145
2146                         if ((cp.Style & ((int)WindowStyles.WS_DISABLED)) != 0) {
2147                                 hwnd.enabled = false;
2148                         }
2149
2150                         ClientRect = hwnd.ClientRect;
2151                         GdkClientWindow = IntPtr.Zero;
2152
2153                         gdk_window_attributes.x = X;
2154                         gdk_window_attributes.y = Y;
2155                         gdk_window_attributes.width = Width;
2156                         gdk_window_attributes.height = Height;
2157                         gdk_window_attributes.window_type = gdk_window_type;
2158
2159                         attributes_mask |= GdkWindowAttributesType.GDK_WA_X | GdkWindowAttributesType.GDK_WA_Y;
2160
2161                         gdk_window_attributes.wclass = GdkWindowClass.GDK_INPUT_OUTPUT;
2162
2163                         lock (XlibLock) {
2164                                 GdkWholeWindow = gdk_window_new (GdkParentHandle, ref gdk_window_attributes, (int)attributes_mask);
2165
2166                                 if (GdkWholeWindow != IntPtr.Zero) {
2167                                         attributes_mask &= ~GdkWindowAttributesType.GDK_WA_NOREDIR;
2168
2169                                         if (GdkCustomVisual != IntPtr.Zero && GdkCustomColormap != IntPtr.Zero) {
2170                                                 attributes_mask |= GdkWindowAttributesType.GDK_WA_COLORMAP | GdkWindowAttributesType.GDK_WA_VISUAL;
2171                                                 gdk_window_attributes.colormap = GdkCustomColormap;
2172                                                 gdk_window_attributes.visual = GdkCustomVisual;
2173                                         }
2174
2175                                         gdk_window_attributes.x = ClientRect.X;
2176                                         gdk_window_attributes.y = ClientRect.Y;
2177                                         gdk_window_attributes.width = ClientRect.Width;
2178                                         gdk_window_attributes.height = ClientRect.Height;
2179
2180                                         GdkClientWindow = gdk_window_new (GdkWholeWindow, ref gdk_window_attributes, (int)attributes_mask);
2181                                 }
2182                         }
2183
2184                         if ((GdkWholeWindow == IntPtr.Zero) || (GdkClientWindow == IntPtr.Zero)) {
2185                                 throw new Exception ("Could not create X11 Gdk windows");
2186                         }
2187
2188                         hwnd.WholeWindow = gdk_x11_drawable_get_xid (GdkWholeWindow);
2189                         hwnd.ClientWindow = gdk_x11_drawable_get_xid (GdkClientWindow);
2190
2191                         #if DriverDebug
2192                                 Console.WriteLine("Created window {0:X} / {1:X} parent {2:X}", ClientWindow.ToInt32(), WholeWindow.ToInt32(), hwnd.parent != null ? hwnd.parent.Handle.ToInt32() : 0);
2193                         #endif
2194
2195                         lock (XlibLock) {
2196                                 gdk_window_set_events (GdkWholeWindow, (int)GdkSelectInputMask);
2197                                 gdk_window_set_events (GdkClientWindow, (int)GdkSelectInputMask);
2198
2199                                 if ((cp.Style & (int)WindowStyles.WS_VISIBLE) != 0) {
2200                                         gdk_window_show (GdkWholeWindow);
2201                                         gdk_window_show (GdkClientWindow);
2202                                         hwnd.visible = true;
2203                                 }
2204                         }
2205
2206                         SetWMStyles (hwnd, cp);
2207
2208                         if ((cp.Style & (int)WindowStyles.WS_MINIMIZE) != 0) {
2209                                 SetWindowState (hwnd.Handle, FormWindowState.Minimized);
2210                         } else if ((cp.Style & (int)WindowStyles.WS_MAXIMIZE) != 0) {
2211                                 SetWindowState (hwnd.Handle, FormWindowState.Maximized);
2212                         }
2213
2214                         // for now make all windows dnd enabled
2215                         Dnd.SetAllowDrop (hwnd, true);
2216
2217                         // Set caption/window title
2218                         Text (hwnd.Handle, cp.Caption);
2219
2220                         return hwnd.Handle;
2221                 }
2222
2223                 internal override IntPtr CreateWindow (IntPtr Parent, int X, int Y, int Width, int Height)
2224                 {
2225                         CreateParams create_params = new CreateParams ();
2226
2227                         create_params.Caption = "";
2228                         create_params.X = X;
2229                         create_params.Y = Y;
2230                         create_params.Width = Width;
2231                         create_params.Height = Height;
2232
2233                         create_params.ClassName = XplatUI.DefaultClassName;
2234                         create_params.ClassStyle = 0;
2235                         create_params.ExStyle = 0;
2236                         create_params.Parent = IntPtr.Zero;
2237                         create_params.Param = 0;
2238
2239                         return CreateWindow (create_params);
2240                 }
2241
2242                 internal override IntPtr DefineCursor (Bitmap bitmap, Bitmap mask, Color cursor_pixel, Color mask_pixel, int xHotSpot, int yHotSpot)
2243                 {
2244                         IntPtr  cursor;
2245                         Bitmap  cursor_bitmap;
2246                         Bitmap  cursor_mask;
2247                         Byte[]  cursor_bits;
2248                         Byte[]  mask_bits;
2249                         Color   c_pixel;
2250                         Color   m_pixel;
2251                         int     width;
2252                         int     height;
2253                         IntPtr  cursor_pixmap;
2254                         IntPtr  mask_pixmap;
2255                         XColor  fg;
2256                         XColor  bg;
2257                         bool    and;
2258                         bool    xor;
2259
2260                         Size cursor_size = CursorSize;
2261                         width = cursor_size.Width;
2262                         height = cursor_size.Height;
2263
2264                         // Win32 only allows creation cursors of a certain size
2265                         if ((bitmap.Width != width) || (bitmap.Width != height)) {
2266                                 cursor_bitmap = new Bitmap (bitmap, new Size (width, height));
2267                                 cursor_mask = new Bitmap (mask, new Size (width, height));
2268                         } else {
2269                                 cursor_bitmap = bitmap;
2270                                 cursor_mask = mask;
2271                         }
2272
2273                         width = cursor_bitmap.Width;
2274                         height = cursor_bitmap.Height;
2275
2276                         cursor_bits = new Byte [(width / 8) * height];
2277                         mask_bits = new Byte [(width / 8) * height];
2278
2279                         for (int y = 0; y < height; y++) {
2280                                 for (int x = 0; x < width; x++) {
2281                                         c_pixel = cursor_bitmap.GetPixel (x, y);
2282                                         m_pixel = cursor_mask.GetPixel (x, y);
2283
2284                                         and = c_pixel == cursor_pixel;
2285                                         xor = m_pixel == mask_pixel;
2286
2287                                         if (!and && !xor) {
2288                                                 // Black
2289                                                 // cursor_bits[y * width / 8 + x / 8] &= (byte)~((1 << (x % 8)));       // The bit already is 0
2290                                                 mask_bits [y * width / 8 + x / 8] |= (byte)(1 << (x % 8));
2291                                         } else if (and && !xor) {
2292                                                 // White
2293                                                 cursor_bits [y * width / 8 + x / 8] |= (byte)(1 << (x % 8));
2294                                                 mask_bits [y * width / 8 + x / 8] |= (byte)(1 << (x % 8));
2295                                                 #if notneeded
2296                                         } else if (and && !xor) {
2297                                                 // Screen
2298                                         } else if (and && xor) {
2299                                                 // Inverse Screen
2300
2301                                                 // X11 doesn't know the 'reverse screen' concept, so we'll treat them the same
2302                                                 // we want both to be 0 so nothing to be done
2303                                                 //cursor_bits[y * width / 8 + x / 8] &= (byte)~((1 << (x % 8)));
2304                                                 //mask_bits[y * width / 8 + x / 8] |= (byte)(01 << (x % 8));
2305                                                 #endif
2306                                         }
2307                                 }
2308                         }
2309
2310                         cursor_pixmap = XCreatePixmapFromBitmapData (DisplayHandle, RootWindow, cursor_bits, width, height, (IntPtr)1, (IntPtr)0, 1);
2311                         mask_pixmap = XCreatePixmapFromBitmapData (DisplayHandle, RootWindow, mask_bits, width, height, (IntPtr)1, (IntPtr)0, 1);
2312                         fg = new XColor ();
2313                         bg = new XColor ();
2314
2315                         fg.pixel = XWhitePixel (DisplayHandle, ScreenNo);
2316                         fg.red = (ushort)65535;
2317                         fg.green = (ushort)65535;
2318                         fg.blue = (ushort)65535;
2319
2320                         bg.pixel = XBlackPixel (DisplayHandle, ScreenNo);
2321
2322                         cursor = XCreatePixmapCursor (DisplayHandle, cursor_pixmap, mask_pixmap, ref fg, ref bg, xHotSpot, yHotSpot);
2323
2324                         XFreePixmap (DisplayHandle, cursor_pixmap);
2325                         XFreePixmap (DisplayHandle, mask_pixmap);
2326
2327                         return cursor;
2328                 }
2329
2330                 internal override IntPtr DefineStdCursor (StdCursor id)
2331                 {
2332                         CursorFontShape shape;
2333                         IntPtr          cursor;
2334
2335                         // FIXME - define missing shapes
2336
2337                         switch (id) {
2338                         case StdCursor.AppStarting: {
2339                                         shape = CursorFontShape.XC_watch;
2340                                         break;
2341                                 }
2342
2343                         case StdCursor.Arrow: {
2344                                         return IntPtr.Zero;
2345                                 }
2346
2347                         case StdCursor.Cross: {
2348                                         shape = CursorFontShape.XC_crosshair;
2349                                         break;
2350                                 }
2351
2352                         case StdCursor.Default: {
2353                                         return IntPtr.Zero;
2354                                 }
2355
2356                         case StdCursor.Hand: {
2357                                         shape = CursorFontShape.XC_hand1;
2358                                         break;
2359                                 }
2360
2361                         case StdCursor.Help: {
2362                                         shape = CursorFontShape.XC_question_arrow;
2363                                         break;
2364                                 }
2365
2366                         case StdCursor.HSplit: {
2367                                         shape = CursorFontShape.XC_sb_v_double_arrow;
2368                                         break;
2369                                 }
2370
2371                         case StdCursor.IBeam: {
2372                                         shape = CursorFontShape.XC_xterm;
2373                                         break;
2374                                 }
2375
2376                         case StdCursor.No: {
2377                                         shape = CursorFontShape.XC_circle;
2378                                         break;
2379                                 }
2380
2381                         case StdCursor.NoMove2D: {
2382                                         shape = CursorFontShape.XC_fleur;
2383                                         break;
2384                                 }
2385
2386                         case StdCursor.NoMoveHoriz: {
2387                                         shape = CursorFontShape.XC_fleur;
2388                                         break;
2389                                 }
2390
2391                         case StdCursor.NoMoveVert: {
2392                                         shape = CursorFontShape.XC_fleur;
2393                                         break;
2394                                 }
2395
2396                         case StdCursor.PanEast: {
2397                                         shape = CursorFontShape.XC_fleur;
2398                                         break;
2399                                 }
2400
2401                         case StdCursor.PanNE: {
2402                                         shape = CursorFontShape.XC_fleur;
2403                                         break;
2404                                 }
2405
2406                         case StdCursor.PanNorth: {
2407                                         shape = CursorFontShape.XC_fleur;
2408                                         break;
2409                                 }
2410
2411                         case StdCursor.PanNW: {
2412                                         shape = CursorFontShape.XC_fleur;
2413                                         break;
2414                                 }
2415
2416                         case StdCursor.PanSE: {
2417                                         shape = CursorFontShape.XC_fleur;
2418                                         break;
2419                                 }
2420
2421                         case StdCursor.PanSouth: {
2422                                         shape = CursorFontShape.XC_fleur;
2423                                         break;
2424                                 }
2425
2426                         case StdCursor.PanSW: {
2427                                         shape = CursorFontShape.XC_fleur;
2428                                         break;
2429                                 }
2430
2431                         case StdCursor.PanWest: {
2432                                         shape = CursorFontShape.XC_sizing;
2433                                         break;
2434                                 }
2435
2436                         case StdCursor.SizeAll: {
2437                                         shape = CursorFontShape.XC_fleur;
2438                                         break;
2439                                 }
2440
2441                         case StdCursor.SizeNESW: {
2442                                         shape = CursorFontShape.XC_top_right_corner;
2443                                         break;
2444                                 }
2445
2446                         case StdCursor.SizeNS: {
2447                                         shape = CursorFontShape.XC_sb_v_double_arrow;
2448                                         break;
2449                                 }
2450
2451                         case StdCursor.SizeNWSE: {
2452                                         shape = CursorFontShape.XC_top_left_corner;
2453                                         break;
2454                                 }
2455
2456                         case StdCursor.SizeWE: {
2457                                         shape = CursorFontShape.XC_sb_h_double_arrow;
2458                                         break;
2459                                 }
2460
2461                         case StdCursor.UpArrow: {
2462                                         shape = CursorFontShape.XC_center_ptr;
2463                                         break;
2464                                 }
2465
2466                         case StdCursor.VSplit: {
2467                                         shape = CursorFontShape.XC_sb_h_double_arrow;
2468                                         break;
2469                                 }
2470
2471                         case StdCursor.WaitCursor: {
2472                                         shape = CursorFontShape.XC_watch;
2473                                         break;
2474                                 }
2475
2476                         default: {
2477                                         return IntPtr.Zero;
2478                                 }
2479                         }
2480
2481                         lock (XlibLock) {
2482                                 cursor = XCreateFontCursor (DisplayHandle, shape);
2483                         }
2484                         return cursor;
2485                 }
2486
2487                 internal override IntPtr DefWndProc (ref Message msg)
2488                 {
2489                         return IntPtr.Zero;
2490                 }
2491
2492                 internal override void DestroyCaret (IntPtr handle)
2493                 {
2494                         if (Caret.Hwnd == handle) {
2495                                 if (Caret.Visible == 1) {
2496                                         Caret.Timer.Stop ();
2497                                         HideCaret ();
2498                                 }
2499                                 if (Caret.gc != IntPtr.Zero) {
2500                                         XFreeGC (DisplayHandle, Caret.gc);
2501                                         Caret.gc = IntPtr.Zero;
2502                                 }
2503                                 Caret.Hwnd = IntPtr.Zero;
2504                                 Caret.Visible = 0;
2505                                 Caret.On = false;
2506                         }
2507                 }
2508
2509                 internal override void DestroyCursor (IntPtr cursor)
2510                 {
2511                         lock (XlibLock) {
2512                                 XFreeCursor (DisplayHandle, cursor);
2513                         }
2514                 }
2515
2516                 internal override void DestroyWindow (IntPtr handle)
2517                 {
2518                         Hwnd    hwnd;
2519
2520                         hwnd = Hwnd.ObjectFromHandle (handle);
2521
2522                         if (hwnd == null) {
2523                                 #if DriverDebug
2524                                         Console.WriteLine("window {0:X} already destroyed", handle.ToInt32());
2525                                 #endif
2526                                 return;
2527                         }
2528
2529                         #if DriverDebug
2530                                 Console.WriteLine("Destroying window {0:X}", handle.ToInt32());
2531                         #endif
2532
2533                         // Make sure if the caret is in the window, that we destroy the caret, too
2534                         if (Caret.Hwnd == hwnd.client_window) {
2535                                 DestroyCaret (handle);
2536                         }
2537
2538                         // Mark our children as gone as well
2539                         DestroyChildWindow (Control.ControlNativeWindow.ControlFromHandle (handle));
2540
2541                         // Send destroy message
2542                         SendMessage (handle, Msg.WM_DESTROY, IntPtr.Zero, IntPtr.Zero);
2543
2544                         lock (XlibLock) {
2545                                 if (hwnd.client_window != IntPtr.Zero) {
2546                                         gdk_window_destroy (gdk_window_lookup (hwnd.client_window));
2547                                 }
2548
2549                                 if ((hwnd.whole_window != IntPtr.Zero) && (hwnd.whole_window != hwnd.client_window)) {
2550                                         gdk_window_destroy (gdk_window_lookup (hwnd.whole_window));
2551                                 }
2552                         }
2553                         hwnd.Dispose ();
2554                 }
2555
2556                 internal override IntPtr DispatchMessage (ref MSG msg)
2557                 {
2558                         return NativeWindow.WndProc (msg.hwnd, msg.message, msg.wParam, msg.lParam);
2559                 }
2560
2561                 internal override void DrawReversibleRectangle (IntPtr handle, Rectangle rect, int line_width)
2562                 {
2563                         Hwnd            hwnd;
2564                         XGCValues       gc_values;
2565                         IntPtr          gc;
2566
2567                         hwnd = Hwnd.ObjectFromHandle (handle);
2568
2569                         gc_values = new XGCValues ();
2570
2571                         gc_values.subwindow_mode = GCSubwindowMode.IncludeInferiors;
2572                         gc_values.line_width = line_width;
2573                         gc_values.foreground = XBlackPixel (DisplayHandle, ScreenNo);
2574
2575                         // This logic will give us true rubber bands: (libsx, SANE_XOR)
2576                         //mask = foreground ^ background;
2577                         //XSetForeground(DisplayHandle, gc, 0xffffffff);
2578                         //XSetBackground(DisplayHandle, gc, background);
2579                         //XSetFunction(DisplayHandle,   gc, GXxor);
2580                         //XSetPlaneMask(DisplayHandle,  gc, mask);
2581
2582
2583                         gc = XCreateGC (DisplayHandle, hwnd.client_window, GCFunction.GCSubwindowMode | GCFunction.GCLineWidth | GCFunction.GCForeground, ref gc_values);
2584                         uint foreground;
2585                         uint background;
2586
2587                         Control control;
2588                         control = Control.FromHandle (handle);
2589
2590                         XColor xcolor = new XColor ();
2591
2592                         xcolor.red = (ushort)(control.ForeColor.R * 257);
2593                         xcolor.green = (ushort)(control.ForeColor.G * 257);
2594                         xcolor.blue = (ushort)(control.ForeColor.B * 257);
2595                         XAllocColor (DisplayHandle, DefaultColormap, ref xcolor);
2596                         foreground = (uint)xcolor.pixel.ToInt32 ();
2597
2598                         xcolor.red = (ushort)(control.BackColor.R * 257);
2599                         xcolor.green = (ushort)(control.BackColor.G * 257);
2600                         xcolor.blue = (ushort)(control.BackColor.B * 257);
2601                         XAllocColor (DisplayHandle, DefaultColormap, ref xcolor);
2602                         background = (uint)xcolor.pixel.ToInt32 ();
2603
2604                         uint mask = foreground ^ background;
2605
2606                         XSetForeground (DisplayHandle, gc, 0xffffffff);
2607                         XSetBackground (DisplayHandle, gc, background);
2608                         XSetFunction (DisplayHandle,   gc, GXFunction.GXxor);
2609                         XSetPlaneMask (DisplayHandle,  gc, mask);
2610
2611                         if ((rect.Width > 0) && (rect.Height > 0)) {
2612                                 XDrawRectangle (DisplayHandle, hwnd.client_window, gc, rect.Left, rect.Top, rect.Width, rect.Height);
2613                         } else {
2614                                 if (rect.Width > 0) {
2615                                         XDrawLine (DisplayHandle, hwnd.client_window, gc, rect.X, rect.Y, rect.Right, rect.Y);
2616                                 } else {
2617                                         XDrawLine (DisplayHandle, hwnd.client_window, gc, rect.X, rect.Y, rect.X, rect.Bottom);
2618                                 }
2619                         }
2620                         XFreeGC (DisplayHandle, gc);
2621                 }
2622
2623                 internal override void DoEvents ()
2624                 {
2625                         MSG msg = new MSG ();
2626
2627                         if (OverrideCursorHandle != IntPtr.Zero) {
2628                                 OverrideCursorHandle = IntPtr.Zero;
2629                         }
2630
2631                         while (PeekMessage (ref msg, IntPtr.Zero, 0, 0, (uint)PeekMessageFlags.PM_REMOVE)) {
2632                                 TranslateMessage (ref msg);
2633                                 DispatchMessage (ref msg);
2634                         }
2635                 }
2636
2637                 internal override void EnableWindow (IntPtr handle, bool Enable)
2638                 {
2639                         Hwnd    hwnd;
2640
2641                         hwnd = Hwnd.ObjectFromHandle (handle);
2642                         if (hwnd != null) {
2643                                 hwnd.Enabled = Enable;
2644                         }
2645                 }
2646
2647                 internal override void EndLoop (Thread thread)
2648                 {
2649                         // This is where we one day will shut down the loop for the thread
2650                 }
2651
2652
2653                 internal override IntPtr GetActive ()
2654                 {
2655                         Atom    actual_atom;
2656                         int     actual_format;
2657                         int     nitems;
2658                         int     bytes_after;
2659                         IntPtr  prop = IntPtr.Zero;
2660                         IntPtr  active = IntPtr.Zero;
2661
2662                         XGetWindowProperty (DisplayHandle, RootWindow, NetAtoms [(int)NA._NET_ACTIVE_WINDOW], 0, 1, false, Atom.XA_WINDOW, out actual_atom, out actual_format, out nitems, out bytes_after, ref prop);
2663                         if ((nitems > 0) && (prop != IntPtr.Zero)) {
2664                                 active = (IntPtr)Marshal.ReadInt32 (prop);
2665                                 XFree (prop);
2666                         }
2667
2668                         if (active != IntPtr.Zero) {
2669                                 Hwnd    hwnd;
2670
2671                                 hwnd = Hwnd.GetObjectFromWindow (active);
2672                                 if (hwnd != null) {
2673                                         active = hwnd.Handle;
2674                                 } else {
2675                                         active = IntPtr.Zero;
2676                                 }
2677                         }
2678                         return active;
2679                 }
2680
2681                 internal override void GetCursorInfo (IntPtr cursor, out int width, out int height, out int hotspot_x, out int hotspot_y)
2682                 {
2683                         throw new NotImplementedException ();
2684                 }
2685
2686                 internal override void GetDisplaySize (out Size size)
2687                 {
2688                         XWindowAttributes       attributes=new XWindowAttributes ();
2689
2690                         lock (XlibLock) {
2691                                 // FIXME - use _NET_WM messages instead?
2692                                 XGetWindowAttributes (DisplayHandle, XRootWindow (DisplayHandle, ScreenNo), ref attributes);
2693                         }
2694
2695                         size = new Size (attributes.width, attributes.height);
2696                 }
2697
2698                 internal override SizeF GetAutoScaleSize (Font font)
2699                 {
2700                         Graphics        g;
2701                         float           width;
2702                         string          magic_string = "The quick brown fox jumped over the lazy dog.";
2703                         double          magic_number = 44.549996948242189;
2704
2705                         g = Graphics.FromHwnd (FosterParent);
2706
2707                         width = (float) (g.MeasureString (magic_string, font).Width / magic_number);
2708                         return new SizeF (width, font.Height);
2709                 }
2710
2711                 internal override IntPtr GetParent (IntPtr handle)
2712                 {
2713                         Hwnd    hwnd;
2714
2715                         hwnd = Hwnd.ObjectFromHandle (handle);
2716                         if (hwnd != null && hwnd.parent != null) {
2717                                 return hwnd.parent.Handle;
2718                         }
2719                         return IntPtr.Zero;
2720                 }
2721
2722                 internal override void GetCursorPos (IntPtr handle, out int x, out int y)
2723                 {
2724                         IntPtr  use_handle;
2725                         IntPtr  root;
2726                         IntPtr  child;
2727                         int     root_x;
2728                         int     root_y;
2729                         int     win_x;
2730                         int     win_y;
2731                         int     keys_buttons;
2732
2733                         if (handle != IntPtr.Zero) {
2734                                 use_handle = Hwnd.ObjectFromHandle (handle).client_window;
2735                         } else {
2736                                 use_handle = RootWindow;
2737                         }
2738
2739                         lock (XlibLock) {
2740                                 XQueryPointer (DisplayHandle, use_handle, out root, out child, out root_x, out root_y, out win_x, out win_y, out keys_buttons);
2741                         }
2742
2743                         if (handle != IntPtr.Zero) {
2744                                 x = win_x;
2745                                 y = win_y;
2746                         } else {
2747                                 x = root_x;
2748                                 y = root_y;
2749                         }
2750                 }
2751
2752                 internal override bool GetFontMetrics (Graphics g, Font font, out int ascent, out int descent)
2753                 {
2754                         return GetFontMetrics (g.GetHdc (), font.ToHfont (), out ascent, out descent);
2755                 }
2756
2757                 internal override Point GetMenuOrigin (IntPtr handle)
2758                 {
2759                         Hwnd    hwnd;
2760
2761                         hwnd = Hwnd.ObjectFromHandle (handle);
2762
2763                         if (hwnd != null) {
2764                                 return hwnd.MenuOrigin;
2765                         }
2766                         return Point.Empty;
2767                 }
2768
2769                 internal override bool GetMessage (ref MSG msg, IntPtr handle, int wFilterMin, int wFilterMax)
2770                 {
2771                         XEvent  xevent;
2772                         bool    client;
2773                         Hwnd    hwnd;
2774
2775                         ProcessNextMessage:
2776
2777                         if (MessageQueue.Count > 0) {
2778                                 xevent = (XEvent) MessageQueue.Dequeue ();
2779                         } else {
2780                                 UpdateMessageQueue ();
2781
2782                                 if (MessageQueue.Count > 0) {
2783                                         xevent = (XEvent) MessageQueue.Dequeue ();
2784                                 } else {
2785                                         if (!PostQuitState) {
2786                                                 msg.hwnd = IntPtr.Zero;
2787                                                 msg.message = Msg.WM_ENTERIDLE;
2788                                                 return true;
2789                                         }
2790
2791                                         // We reset ourselves so GetMessage can be called again
2792                                         PostQuitState = false;
2793
2794                                         return false;
2795                                 }
2796                         }
2797
2798                         // FIXME - handle filtering
2799
2800                         hwnd = Hwnd.GetObjectFromWindow (xevent.AnyEvent.window);
2801
2802                         // Handle messages for windows that are already or are about to be destroyed
2803                         if (hwnd == null) {
2804                                 #if DriverDebug
2805                                         Console.WriteLine("GetMessage(): Got message {0} for non-existent or already destroyed window {1:X}", xevent.type, xevent.AnyEvent.window.ToInt32());
2806                                 #endif
2807                                 goto ProcessNextMessage;
2808                         }
2809
2810                         if (hwnd.client_window == xevent.AnyEvent.window) {
2811                                 client = true;
2812                                 //Console.WriteLine("Client message, sending to window {0:X}", msg.hwnd.ToInt32());
2813                         } else {
2814                                 client = false;
2815                                 //Console.WriteLine("Non-Client message, sending to window {0:X}", msg.hwnd.ToInt32());
2816                         }
2817
2818                         msg.hwnd = hwnd.Handle;
2819
2820                         //
2821                         // If you add a new event to this switch make sure to add it in
2822                         // UpdateMessage also unless it is not coming through the X event system.
2823                         //
2824                         switch (xevent.type) {
2825                         case XEventName.KeyPress: {
2826                                         Keyboard.KeyEvent (FocusWindow, xevent, ref msg);
2827                                         break;
2828                                 }
2829
2830                         case XEventName.KeyRelease: {
2831                                         Keyboard.KeyEvent (FocusWindow, xevent, ref msg);
2832                                         break;
2833                                 }
2834
2835                         case XEventName.ButtonPress: {
2836                                         switch (xevent.ButtonEvent.button) {
2837                                         case 1: {
2838                                                         MouseState |= MouseButtons.Left;
2839                                                         if (client) {
2840                                                                 msg.message = Msg.WM_LBUTTONDOWN;
2841                                                         } else {
2842                                                                 msg.message = Msg.WM_NCLBUTTONDOWN;
2843                                                                 WholeToScreen (msg.hwnd, ref xevent.ButtonEvent.x, ref xevent.ButtonEvent.y);
2844                                                         }
2845                                                         // TODO: For WM_NCLBUTTONDOWN wParam specifies a hit-test value not the virtual keys down
2846                                                         msg.wParam = GetMousewParam (0);
2847                                                         break;
2848                                                 }
2849
2850                                         case 2: {
2851                                                         MouseState |= MouseButtons.Middle;
2852                                                         if (client) {
2853                                                                 msg.message = Msg.WM_MBUTTONDOWN;
2854                                                         } else {
2855                                                                 msg.message = Msg.WM_NCMBUTTONDOWN;
2856                                                                 WholeToScreen (msg.hwnd, ref xevent.ButtonEvent.x, ref xevent.ButtonEvent.y);
2857                                                         }
2858                                                         msg.wParam = GetMousewParam (0);
2859                                                         break;
2860                                                 }
2861
2862                                         case 3: {
2863                                                         MouseState |= MouseButtons.Right;
2864                                                         if (client) {
2865                                                                 msg.message = Msg.WM_RBUTTONDOWN;
2866                                                         } else {
2867                                                                 msg.message = Msg.WM_NCRBUTTONDOWN;
2868                                                                 WholeToScreen (msg.hwnd, ref xevent.ButtonEvent.x, ref xevent.ButtonEvent.y);
2869                                                         }
2870                                                         msg.wParam = GetMousewParam (0);
2871                                                         break;
2872                                                 }
2873
2874                                         case 4: {
2875                                                         msg.message = Msg.WM_MOUSEWHEEL;
2876                                                         msg.wParam = GetMousewParam (120);
2877                                                         break;
2878                                                 }
2879
2880                                         case 5: {
2881                                                         msg.message = Msg.WM_MOUSEWHEEL;
2882                                                         msg.wParam = GetMousewParam (-120);
2883                                                         break;
2884                                                 }
2885
2886                                         }
2887
2888                                         msg.lParam = (IntPtr) (xevent.ButtonEvent.y << 16 | xevent.ButtonEvent.x);
2889                                         MousePosition.X = xevent.ButtonEvent.x;
2890                                         MousePosition.Y = xevent.ButtonEvent.y;
2891
2892                                         if (!hwnd.Enabled) {
2893                                                 IntPtr dummy;
2894
2895                                                 msg.hwnd = hwnd.EnabledHwnd;
2896                                                 XTranslateCoordinates (DisplayHandle, xevent.AnyEvent.window, Hwnd.ObjectFromHandle (msg.hwnd).ClientWindow, xevent.ButtonEvent.x, xevent.ButtonEvent.y, out xevent.ButtonEvent.x, out xevent.ButtonEvent.y, out dummy);
2897                                                 msg.lParam = (IntPtr)(MousePosition.Y << 16 | MousePosition.X);
2898                                         }
2899
2900                                         if (Grab.Hwnd != IntPtr.Zero) {
2901                                                 msg.hwnd = Grab.Hwnd;
2902                                         }
2903
2904                                         if (!ClickPending.Pending) {
2905                                                 ClickPending.Pending = true;
2906                                                 ClickPending.Hwnd = msg.hwnd;
2907                                                 ClickPending.Message = msg.message;
2908                                                 ClickPending.wParam = msg.wParam;
2909                                                 ClickPending.lParam = msg.lParam;
2910                                                 ClickPending.Time = (long)xevent.ButtonEvent.time;
2911                                         } else {
2912                                                 if ((((long)xevent.ButtonEvent.time - ClickPending.Time) < DoubleClickInterval) && (msg.wParam == ClickPending.wParam) && (msg.lParam == ClickPending.lParam) && (msg.message == ClickPending.Message)) {
2913                                                         // Looks like a genuine double click, clicked twice on the same spot with the same keys
2914                                                         switch (xevent.ButtonEvent.button) {
2915                                                         case 1: {
2916                                                                         msg.message = client ? Msg.WM_LBUTTONDBLCLK : Msg.WM_NCLBUTTONDBLCLK;
2917                                                                         break;
2918                                                                 }
2919
2920                                                         case 2: {
2921                                                                         msg.message = client ? Msg.WM_MBUTTONDBLCLK : Msg.WM_NCMBUTTONDBLCLK;
2922                                                                         break;
2923                                                                 }
2924
2925                                                         case 3: {
2926                                                                         msg.message = client ? Msg.WM_RBUTTONDBLCLK : Msg.WM_NCRBUTTONDBLCLK;
2927                                                                         break;
2928                                                                 }
2929                                                         }
2930                                                 }
2931                                                 ClickPending.Pending = false;
2932                                         }
2933
2934                                         break;
2935                                 }
2936
2937                         case XEventName.ButtonRelease: {
2938                                         Dnd.HandleButtonRelease (ref xevent);
2939                                         switch (xevent.ButtonEvent.button) {
2940                                         case 1: {
2941                                                         if (client) {
2942                                                                 msg.message = Msg.WM_LBUTTONUP;
2943                                                         } else {
2944                                                                 msg.message = Msg.WM_NCLBUTTONUP;
2945                                                                 WholeToScreen (msg.hwnd, ref xevent.ButtonEvent.x, ref xevent.ButtonEvent.y);
2946                                                         }
2947                                                         msg.wParam = GetMousewParam (0);
2948                                                         MouseState &= ~MouseButtons.Left;
2949                                                         break;
2950                                                 }
2951
2952                                         case 2: {
2953                                                         if (client) {
2954                                                                 msg.message = Msg.WM_MBUTTONUP;
2955                                                         } else {
2956                                                                 msg.message = Msg.WM_NCMBUTTONUP;
2957                                                                 WholeToScreen (msg.hwnd, ref xevent.ButtonEvent.x, ref xevent.ButtonEvent.y);
2958                                                         }
2959                                                         msg.wParam = GetMousewParam (0);
2960                                                         MouseState &= ~MouseButtons.Middle;
2961                                                         break;
2962                                                 }
2963
2964                                         case 3: {
2965                                                         if (client) {
2966                                                                 msg.message = Msg.WM_RBUTTONUP;
2967                                                         } else {
2968                                                                 msg.message = Msg.WM_NCRBUTTONUP;
2969                                                                 WholeToScreen (msg.hwnd, ref xevent.ButtonEvent.x, ref xevent.ButtonEvent.y);
2970                                                         }
2971                                                         msg.wParam = GetMousewParam (0);
2972                                                         MouseState &= ~MouseButtons.Right;
2973                                                         break;
2974                                                 }
2975
2976                                         case 4: {
2977                                                         goto ProcessNextMessage;
2978                                                 }
2979
2980                                         case 5: {
2981                                                         goto ProcessNextMessage;
2982                                                 }
2983                                         }
2984
2985                                         if (!hwnd.Enabled) {
2986                                                 IntPtr dummy;
2987
2988                                                 msg.hwnd = hwnd.EnabledHwnd;
2989                                                 XTranslateCoordinates (DisplayHandle, xevent.AnyEvent.window, Hwnd.ObjectFromHandle (msg.hwnd).ClientWindow, xevent.ButtonEvent.x, xevent.ButtonEvent.y, out xevent.ButtonEvent.x, out xevent.ButtonEvent.y, out dummy);
2990                                                 msg.lParam = (IntPtr)(MousePosition.Y << 16 | MousePosition.X);
2991                                         }
2992
2993                                         if (Grab.Hwnd != IntPtr.Zero) {
2994                                                 msg.hwnd = Grab.Hwnd;
2995                                         }
2996
2997                                         msg.lParam = (IntPtr) (xevent.ButtonEvent.y << 16 | xevent.ButtonEvent.x);
2998                                         MousePosition.X = xevent.ButtonEvent.x;
2999                                         MousePosition.Y = xevent.ButtonEvent.y;
3000                                         break;
3001                                 }
3002
3003                         case XEventName.MotionNotify: {
3004                                         if (client) {
3005                                                 #if DriverDebugExtra
3006                                                         Console.WriteLine("GetMessage(): Window {0:X} MotionNotify x={1} y={2}", client ? hwnd.client_window.ToInt32() : hwnd.whole_window.ToInt32(), xevent.MotionEvent.x, xevent.MotionEvent.y);
3007                                                 #endif
3008
3009                                                 if (Dnd.HandleMotionNotify (ref xevent))
3010                                                         goto ProcessNextMessage;
3011                                                 if (Grab.Hwnd != IntPtr.Zero) {
3012                                                         msg.hwnd = Grab.Hwnd;
3013                                                 } else {
3014                                                         NativeWindow.WndProc (msg.hwnd, Msg.WM_SETCURSOR, msg.hwnd, (IntPtr)HitTest.HTCLIENT);
3015                                                 }
3016
3017                                                 msg.message = Msg.WM_MOUSEMOVE;
3018                                                 msg.wParam = GetMousewParam (0);
3019                                                 msg.lParam = (IntPtr) (xevent.MotionEvent.y << 16 | xevent.MotionEvent.x & 0xFFFF);
3020
3021                                                 if (!hwnd.Enabled) {
3022                                                         IntPtr dummy;
3023
3024                                                         msg.hwnd = hwnd.EnabledHwnd;
3025                                                         XTranslateCoordinates (DisplayHandle, xevent.AnyEvent.window, Hwnd.ObjectFromHandle (msg.hwnd).ClientWindow, xevent.MotionEvent.x, xevent.MotionEvent.y, out xevent.MotionEvent.x, out xevent.MotionEvent.y, out dummy);
3026                                                         msg.lParam = (IntPtr)(MousePosition.Y << 16 | MousePosition.X);
3027                                                 }
3028
3029                                                 HoverState.X = MousePosition.X = xevent.MotionEvent.x;
3030                                                 HoverState.Y = MousePosition.Y = xevent.MotionEvent.y;
3031
3032                                                 break;
3033                                         } else {
3034                                                 #if DriverDebugExtra
3035                                                         Console.WriteLine("GetMessage(): non-client area {0:X} MotionNotify x={1} y={2}", client ? hwnd.client_window.ToInt32() : hwnd.whole_window.ToInt32(), xevent.MotionEvent.x, xevent.MotionEvent.y);
3036                                                 #endif
3037                                                 msg.message = Msg.WM_NCMOUSEMOVE;
3038                                                 msg.lParam = (IntPtr) (xevent.MotionEvent.y << 16 | xevent.MotionEvent.x & 0xFFFF);
3039
3040                                                 if (!hwnd.Enabled) {
3041                                                         IntPtr dummy;
3042
3043                                                         msg.hwnd = hwnd.EnabledHwnd;
3044                                                         XTranslateCoordinates (DisplayHandle, xevent.AnyEvent.window, Hwnd.ObjectFromHandle (msg.hwnd).ClientWindow, xevent.MotionEvent.x, xevent.MotionEvent.y, out xevent.MotionEvent.x, out xevent.MotionEvent.y, out dummy);
3045                                                         msg.lParam = (IntPtr)(MousePosition.Y << 16 | MousePosition.X);
3046                                                 }
3047
3048                                                 #if notyet
3049                                                         // Not sure we need this...
3050                                                         HitTest ht;
3051                                                         ht = NativeWindow.WndProc(hwnd.client_window, Msg.WM_NCHITTEST, IntPtr.Zero, msg.lParam);
3052                                                 #endif
3053
3054                                                 MousePosition.X = xevent.MotionEvent.x;
3055                                                 MousePosition.Y = xevent.MotionEvent.y;
3056                                         }
3057
3058                                         break;
3059                                 }
3060
3061                         case XEventName.EnterNotify: {
3062                                         if (!hwnd.Enabled) {
3063                                                 goto ProcessNextMessage;
3064                                         }
3065                                         if (xevent.CrossingEvent.mode != NotifyMode.NotifyNormal) {
3066                                                 goto ProcessNextMessage;
3067                                         }
3068                                         msg.message = Msg.WM_MOUSE_ENTER;
3069                                         HoverState.Timer.Enabled = true;
3070                                         HoverState.Window = xevent.CrossingEvent.window;
3071                                         break;
3072                                 }
3073
3074                         case XEventName.LeaveNotify: {
3075                                         if (!hwnd.Enabled) {
3076                                                 goto ProcessNextMessage;
3077                                         }
3078                                         if (xevent.CrossingEvent.mode != NotifyMode.NotifyNormal) {
3079                                                 goto ProcessNextMessage;
3080                                         }
3081                                         msg.message = Msg.WM_MOUSE_LEAVE;
3082                                         HoverState.Timer.Enabled = false;
3083                                         HoverState.Window = IntPtr.Zero;
3084                                         break;
3085                                 }
3086
3087                                 #if later
3088                                 case XEventName.CreateNotify: {
3089                                         if (client && (xevent.ConfigureEvent.xevent == xevent.ConfigureEvent.window)) {
3090                                                 msg.message = WM_CREATE;
3091                                                 // Set up CreateStruct
3092                                         } else {
3093                                                 goto ProcessNextMessage;
3094                                         }
3095                                         break;
3096                                 }
3097                                 #endif
3098
3099
3100                         case XEventName.ReparentNotify: {
3101                                         if (hwnd.parent == null) {      // Toplevel
3102                                                 if (xevent.ReparentEvent.parent != IntPtr.Zero) {
3103                                                         // We need to adjust x/y
3104                                                         int     dummy_int;
3105
3106                                                         hwnd.Reparented = true;
3107
3108                                                         gdk_window_get_geometry (gdk_window_lookup (hwnd.whole_window), out hwnd.x, out hwnd.y, out dummy_int, out dummy_int, out dummy_int);
3109                                                         msg.message = Msg.WM_WINDOWPOSCHANGED;
3110                                                         if (hwnd.opacity != 0xffffffff) {
3111                                                                 uint opacity;
3112
3113                                                                 opacity = hwnd.opacity;
3114                                                                 XChangeProperty (DisplayHandle, XGetParent (hwnd.whole_window), NetAtoms [(int)NA._NET_WM_WINDOW_OPACITY], Atom.XA_CARDINAL, 32, PropertyMode.Replace, ref opacity, 1);
3115                                                         }
3116                                                 } else {
3117                                                         hwnd.Reparented = false;
3118                                                         goto ProcessNextMessage;
3119                                                 }
3120                                         }
3121                                         break;
3122                                 }
3123
3124                         case XEventName.ConfigureNotify: {
3125                                         if (!client && (xevent.ConfigureEvent.xevent == xevent.ConfigureEvent.window)) {        // Ignore events for children (SubstructureNotify) and client areas
3126                                                 XplatUIWin32.NCCALCSIZE_PARAMS  ncp;
3127                                                 IntPtr                          ptr;
3128                                                 Rectangle                       rect;
3129
3130                                                 #if DriverDebugExtra
3131                                                         Console.WriteLine("GetMessage(): Window {0:X} ConfigureNotify x={1} y={2} width={3} height={4}", hwnd.client_window.ToInt32(), xevent.ConfigureEvent.x, xevent.ConfigureEvent.y, xevent.ConfigureEvent.width, xevent.ConfigureEvent.height);
3132                                                 #endif
3133                                                 msg.message = Msg.WM_WINDOWPOSCHANGED;
3134                                                 hwnd.configure_pending = false;
3135
3136                                                 // We need to adjust our client window to track the resize of whole_window
3137                                                 rect = hwnd.DefaultClientRect;
3138
3139                                                 ncp = new XplatUIWin32.NCCALCSIZE_PARAMS ();
3140                                                 ptr = Marshal.AllocHGlobal (Marshal.SizeOf (ncp));
3141
3142                                                 ncp.rgrc1.left = rect.Left;
3143                                                 ncp.rgrc1.top = rect.Top;
3144                                                 ncp.rgrc1.right = rect.Right;
3145                                                 ncp.rgrc1.bottom = rect.Bottom;
3146
3147                                                 Marshal.StructureToPtr (ncp, ptr, true);
3148                                                 NativeWindow.WndProc (hwnd.client_window, Msg.WM_NCCALCSIZE, (IntPtr)1, ptr);
3149                                                 ncp = (XplatUIWin32.NCCALCSIZE_PARAMS)Marshal.PtrToStructure (ptr, typeof(XplatUIWin32.NCCALCSIZE_PARAMS));
3150                                                 Marshal.FreeHGlobal (ptr);
3151
3152                                                 // FIXME - debug this with Menus, need to set hwnd.ClientRect
3153
3154                                                 rect = new Rectangle (ncp.rgrc1.left, ncp.rgrc1.top, ncp.rgrc1.right - ncp.rgrc1.left, ncp.rgrc1.bottom - ncp.rgrc1.top);
3155                                                 //Console.WriteLine("CreateOffscreenbuffer...");
3156 //                                              CreateOffscreenBuffer (ref hwnd.client_offscreen, rect.Width, rect.Height);
3157
3158                                                 XMoveResizeWindow (DisplayHandle, hwnd.client_window, rect.X, rect.Y, rect.Width, rect.Height);
3159                                         } else {
3160                                                 goto ProcessNextMessage;
3161                                         }
3162
3163                                         msg.lParam = IntPtr.Zero;               // FIXME - Generate LPWINDOWPOS structure and pass on
3164                                         break;
3165                                 }
3166
3167                         case XEventName.FocusIn: {
3168                                         if (!hwnd.Enabled) {
3169                                                 goto ProcessNextMessage;
3170                                         }
3171                                         msg.message = Msg.WM_SETFOCUS;
3172                                         msg.wParam = IntPtr.Zero;
3173                                         break;
3174                                 }
3175
3176                         case XEventName.FocusOut: {
3177                                         if (!hwnd.Enabled) {
3178                                                 goto ProcessNextMessage;
3179                                         }
3180                                         msg.message = Msg.WM_KILLFOCUS;
3181                                         msg.wParam = IntPtr.Zero;
3182                                         break;
3183                                 }
3184
3185                         case XEventName.Expose: {
3186                                         if (PostQuitState) {
3187                                                 goto ProcessNextMessage;
3188                                         }
3189
3190
3191                                         if (client) {
3192                                                 if (!hwnd.expose_pending) {
3193                                                         goto ProcessNextMessage;
3194                                                 }
3195                                         } else {
3196                                                 if (!hwnd.nc_expose_pending) {
3197                                                         goto ProcessNextMessage;
3198                                                 }
3199
3200                                                 switch (hwnd.border_style) {
3201                                                 case FormBorderStyle.Fixed3D: {
3202                                                                 Graphics g;
3203
3204                                                                 g = Graphics.FromHwnd (hwnd.whole_window);
3205                                                                 ControlPaint.DrawBorder3D (g, new Rectangle (0, 0, hwnd.Width, hwnd.Height));
3206                                                                 g.Dispose ();
3207                                                                 break;
3208                                                         }
3209
3210                                                 case FormBorderStyle.FixedSingle: {
3211                                                                 Graphics g;
3212
3213                                                                 g = Graphics.FromHwnd (hwnd.whole_window);
3214                                                                 ControlPaint.DrawBorder (g, new Rectangle (0, 0, hwnd.Width, hwnd.Height), Color.Black, ButtonBorderStyle.Solid);
3215                                                                 g.Dispose ();
3216                                                                 break;
3217                                                         }
3218                                                 }
3219                                                 #if DriverDebugExtra
3220                                                         Console.WriteLine("GetMessage(): Window {0:X} Exposed non-client area {1},{2} {3}x{4}", hwnd.client_window.ToInt32(), xevent.ExposeEvent.x, xevent.ExposeEvent.y, xevent.ExposeEvent.width, xevent.ExposeEvent.height);
3221                                                 #endif
3222
3223                                                 Rectangle rect = new Rectangle (xevent.ExposeEvent.x, xevent.ExposeEvent.y, xevent.ExposeEvent.width, xevent.ExposeEvent.height);
3224                                                 Region region = new Region (rect);
3225                                                 IntPtr hrgn = region.GetHrgn (null); // Graphics object isn't needed
3226                                                 msg.message = Msg.WM_NCPAINT;
3227                                                 msg.wParam = hrgn;
3228                                                 hwnd.nc_expose_pending = false;
3229                                                 break;
3230                                         }
3231                                         #if DriverDebugExtra
3232                                                 Console.WriteLine("GetMessage(): Window {0:X} Exposed area {1},{2} {3}x{4}", hwnd.client_window.ToInt32(), xevent.ExposeEvent.x, xevent.ExposeEvent.y, xevent.ExposeEvent.width, xevent.ExposeEvent.height);
3233                                         #endif
3234                                         if (Caret.Visible == 1) {
3235                                                 Caret.Paused = true;
3236                                                 HideCaret ();
3237                                         }
3238
3239                                         if (Caret.Visible == 1) {
3240                                                 ShowCaret ();
3241                                                 Caret.Paused = false;
3242                                         }
3243                                         msg.message = Msg.WM_PAINT;
3244                                         break;
3245                                 }
3246
3247                         case XEventName.DestroyNotify: {
3248
3249                                         // This is a bit tricky, we don't receive our own DestroyNotify, we only get those for our children
3250                                         hwnd = Hwnd.ObjectFromHandle (xevent.DestroyWindowEvent.window);
3251
3252                                         // We may get multiple for the same window, act only one the first (when Hwnd still knows about it)
3253                                         if (hwnd.client_window == xevent.DestroyWindowEvent.window) {
3254                                                 msg.hwnd = hwnd.client_window;
3255                                                 msg.message = Msg.WM_DESTROY;
3256                                                 hwnd.Dispose ();
3257
3258                                                 #if DriverDebug
3259                                                         Console.WriteLine("Got DestroyNotify on Window {0:X}", msg.hwnd.ToInt32());
3260                                                 #endif
3261                                         } else {
3262                                                 goto ProcessNextMessage;
3263                                         }
3264
3265                                         break;
3266                                 }
3267
3268                         case XEventName.ClientMessage: {
3269                                         if (Dnd.HandleClientMessage (ref xevent)) {
3270                                                 goto ProcessNextMessage;
3271                                         }
3272
3273                                         if (xevent.ClientMessageEvent.message_type == (IntPtr)AsyncAtom) {
3274                                                 XplatUIDriverSupport.ExecuteClientMessage ((GCHandle)xevent.ClientMessageEvent.ptr1);
3275                                                 break;
3276                                         }
3277
3278                                         if (xevent.ClientMessageEvent.message_type == (IntPtr)HoverState.Atom) {
3279                                                 msg.message = Msg.WM_MOUSEHOVER;
3280                                                 msg.wParam = GetMousewParam (0);
3281                                                 msg.lParam = (IntPtr) (xevent.ClientMessageEvent.ptr1);
3282                                                 break;
3283                                         }
3284
3285                                         if (xevent.ClientMessageEvent.message_type == (IntPtr)PostAtom) {
3286                                                 msg.hwnd = xevent.ClientMessageEvent.ptr1;
3287                                                 msg.message = (Msg) xevent.ClientMessageEvent.ptr2.ToInt32 ();
3288                                                 msg.wParam = xevent.ClientMessageEvent.ptr3;
3289                                                 msg.lParam = xevent.ClientMessageEvent.ptr4;
3290                                                 break;
3291                                         }
3292
3293                                         #if dontcare
3294                                         if  (xevent.ClientMessageEvent.message_type == (IntPtr)NetAtoms[(int)NA._XEMBED]) {
3295                                                 Console.WriteLine("GOT EMBED MESSAGE {0:X}", xevent.ClientMessageEvent.ptr2.ToInt32());
3296                                                 break;
3297                                         }
3298                                         #endif
3299
3300                                         if  (xevent.ClientMessageEvent.message_type == (IntPtr)NetAtoms [(int)NA.WM_PROTOCOLS]) {
3301                                                 if (xevent.ClientMessageEvent.ptr1 == (IntPtr)NetAtoms [(int)NA.WM_DELETE_WINDOW]) {
3302                                                         msg.message = Msg.WM_CLOSE;
3303                                                         Graphics.FromHdcInternal (IntPtr.Zero);
3304                                                         break;
3305                                                 }
3306
3307                                                 // We should not get this, but I'll leave the code in case we need it in the future
3308                                                 if (xevent.ClientMessageEvent.ptr1 == (IntPtr)NetAtoms [(int)NA.WM_TAKE_FOCUS]) {
3309                                                         goto ProcessNextMessage;
3310                                                 }
3311                                         }
3312                                         break;
3313                                 }
3314
3315                         case XEventName.TimerNotify: {
3316                                         xevent.TimerNotifyEvent.handler (this, EventArgs.Empty);
3317                                         break;
3318                                 }
3319
3320                         default: {
3321                                         goto ProcessNextMessage;
3322                                 }
3323                         }
3324
3325                         return true;
3326                 }
3327
3328                 internal override bool GetText (IntPtr handle, out string text)
3329                 {
3330                         IntPtr  textptr;
3331
3332                         textptr = IntPtr.Zero;
3333
3334                         lock (XlibLock) {
3335                                 // FIXME - use _NET properties
3336                                 XFetchName (DisplayHandle, Hwnd.ObjectFromHandle (handle).whole_window, ref textptr);
3337                         }
3338                         if (textptr != IntPtr.Zero) {
3339                                 text = Marshal.PtrToStringAnsi (textptr);
3340                                 XFree (textptr);
3341                                 return true;
3342                         } else {
3343                                 text = "";
3344                                 return false;
3345                         }
3346                 }
3347
3348                 internal override void GetWindowPos (IntPtr handle, bool is_toplevel, out int x, out int y, out int width, out int height, out int client_width, out int client_height)
3349                 {
3350                         Hwnd            hwnd;
3351                         Rectangle       rect;
3352
3353                         hwnd = Hwnd.ObjectFromHandle (handle);
3354
3355                         if (hwnd != null) {
3356                                 x = hwnd.x;
3357                                 y = hwnd.y;
3358                                 width = hwnd.width;
3359                                 height = hwnd.height;
3360
3361                                 rect = Hwnd.GetClientRectangle (hwnd.border_style, hwnd.menu, hwnd.title_style, hwnd.caption_height, hwnd.tool_caption_height, width, height);
3362
3363                                 client_width = rect.Width;
3364                                 client_height = rect.Height;
3365
3366                                 return;
3367                         }
3368
3369                         // Should we throw an exception or fail silently?
3370                         // throw new ArgumentException("Called with an invalid window handle", "handle");
3371
3372                         x = 0;
3373                         y = 0;
3374                         width = 0;
3375                         height = 0;
3376                         client_width = 0;
3377                         client_height = 0;
3378                 }
3379
3380                 internal override FormWindowState GetWindowState (IntPtr handle)
3381                 {
3382                         Atom                    actual_atom;
3383                         int                     actual_format;
3384                         int                     nitems;
3385                         int                     bytes_after;
3386                         IntPtr                  prop = IntPtr.Zero;
3387                         IntPtr                  atom;
3388                         int                     maximized;
3389                         bool                    minimized;
3390                         XWindowAttributes       attributes;
3391                         Hwnd                    hwnd;
3392
3393                         hwnd = Hwnd.ObjectFromHandle (handle);
3394
3395                         maximized = 0;
3396                         minimized = false;
3397                         XGetWindowProperty (DisplayHandle, hwnd.whole_window, NetAtoms [(int)NA._NET_WM_STATE], 0, 256, false, Atom.XA_ATOM, out actual_atom, out actual_format, out nitems, out bytes_after, ref prop);
3398                         if ((nitems > 0) && (prop != IntPtr.Zero)) {
3399                                 for (int i = 0; i < nitems; i++) {
3400                                         atom = (IntPtr)Marshal.ReadInt32 (prop, i * 4);
3401                                         if ((atom == (IntPtr)NetAtoms [(int)NA._NET_WM_STATE_MAXIMIZED_HORZ]) || (atom == (IntPtr)NetAtoms [(int)NA._NET_WM_STATE_MAXIMIZED_VERT])) {
3402                                                 maximized++;
3403                                         } else if (atom == (IntPtr)NetAtoms [(int)NA._NET_WM_STATE_HIDDEN]) {
3404                                                 minimized = true;
3405                                         }
3406                                 }
3407                                 XFree (prop);
3408                         }
3409
3410                         if (minimized) {
3411                                 return FormWindowState.Minimized;
3412                         } else if (maximized == 2) {
3413                                 return FormWindowState.Maximized;
3414                         }
3415
3416                         attributes = new XWindowAttributes ();
3417                         XGetWindowAttributes (DisplayHandle, handle, ref attributes);
3418                         if (attributes.map_state == MapState.IsUnmapped) {
3419                                 throw new NotSupportedException ("Cannot retrieve the state of an unmapped window");
3420                         }
3421
3422
3423                         return FormWindowState.Normal;
3424                 }
3425
3426                 internal override void GrabInfo (out IntPtr handle, out bool GrabConfined, out Rectangle GrabArea)
3427                 {
3428                         handle = Grab.Hwnd;
3429                         GrabConfined = Grab.Confined;
3430                         GrabArea = Grab.Area;
3431                 }
3432
3433                 internal override void GrabWindow (IntPtr handle, IntPtr confine_to_handle)
3434                 {
3435                         Hwnd    hwnd;
3436                         IntPtr  confine_to_window;
3437
3438                         confine_to_window = IntPtr.Zero;
3439
3440                         if (confine_to_handle != IntPtr.Zero) {
3441                                 XWindowAttributes       attributes = new XWindowAttributes ();
3442
3443                                 hwnd = Hwnd.ObjectFromHandle (confine_to_handle);
3444
3445                                 lock (XlibLock) {
3446                                         XGetWindowAttributes (DisplayHandle, hwnd.client_window, ref attributes);
3447                                 }
3448                                 Grab.Area.X = attributes.x;
3449                                 Grab.Area.Y = attributes.y;
3450                                 Grab.Area.Width = attributes.width;
3451                                 Grab.Area.Height = attributes.height;
3452                                 Grab.Confined = true;
3453                                 confine_to_window = hwnd.client_window;
3454                         }
3455
3456                         Grab.Hwnd = handle;
3457
3458                         hwnd = Hwnd.ObjectFromHandle (handle);
3459
3460                         lock (XlibLock) {
3461                                 XGrabPointer (DisplayHandle, hwnd.client_window, false,
3462                                               EventMask.ButtonPressMask | EventMask.ButtonMotionMask |
3463                                               EventMask.ButtonReleaseMask | EventMask.PointerMotionMask,
3464                                               GrabMode.GrabModeAsync, GrabMode.GrabModeAsync, confine_to_window, 0, 0);
3465                         }
3466                 }
3467
3468                 internal override void UngrabWindow (IntPtr hwnd)
3469                 {
3470                         lock (XlibLock) {
3471                                 XUngrabPointer (DisplayHandle, 0);
3472                                 XFlush (DisplayHandle);
3473                         }
3474                         Grab.Hwnd = IntPtr.Zero;
3475                         Grab.Confined = false;
3476                 }
3477
3478                 internal override void HandleException (Exception e)
3479                 {
3480                         StackTrace st = new StackTrace (e, true);
3481                         Console.WriteLine ("Exception '{0}'", e.Message + st.ToString ());
3482                         Console.WriteLine ("{0}{1}", e.Message, st.ToString ());
3483                 }
3484
3485                 internal override void Invalidate (IntPtr handle, Rectangle rc, bool clear)
3486                 {
3487                         Hwnd    hwnd;
3488                         XEvent  xevent;
3489
3490                         hwnd = Hwnd.ObjectFromHandle (handle);
3491
3492
3493                         xevent = new XEvent ();
3494                         xevent.type = XEventName.Expose;
3495                         xevent.ExposeEvent.display = DisplayHandle;
3496                         xevent.ExposeEvent.window = hwnd.client_window;
3497
3498                         if (clear) {
3499                                 xevent.ExposeEvent.x = hwnd.X;
3500                                 xevent.ExposeEvent.y = hwnd.Y;
3501                                 xevent.ExposeEvent.width = hwnd.Width;
3502                                 xevent.ExposeEvent.height = hwnd.Height;
3503                         } else {
3504                                 xevent.ExposeEvent.x = rc.X;
3505                                 xevent.ExposeEvent.y = rc.Y;
3506                                 xevent.ExposeEvent.width = rc.Width;
3507                                 xevent.ExposeEvent.height = rc.Height;
3508                         }
3509
3510                         AddExpose (xevent);
3511                 }
3512
3513                 internal override bool IsEnabled (IntPtr handle)
3514                 {
3515                         return Hwnd.ObjectFromHandle (handle).Enabled;
3516                 }
3517
3518                 internal override bool IsVisible (IntPtr handle)
3519                 {
3520                         return Hwnd.ObjectFromHandle (handle).visible;
3521                 }
3522
3523                 internal override void KillTimer (Timer timer)
3524                 {
3525                         lock (TimerList) {
3526                                 TimerList.Remove (timer);
3527                         }
3528                 }
3529
3530                 internal override void MenuToScreen (IntPtr handle, ref int x, ref int y)
3531                 {
3532                         int     dest_x_return;
3533                         int     dest_y_return;
3534                         IntPtr  child;
3535                         Hwnd    hwnd;
3536
3537                         hwnd = Hwnd.ObjectFromHandle (handle);
3538
3539                         lock (XlibLock) {
3540                                 XTranslateCoordinates (DisplayHandle, hwnd.whole_window, RootWindow, x, y, out dest_x_return, out dest_y_return, out child);
3541                         }
3542
3543                         x = dest_x_return;
3544                         y = dest_y_return;
3545                 }
3546
3547                 internal override void OverrideCursor (IntPtr cursor)
3548                 {
3549                         OverrideCursorHandle = cursor;
3550                 }
3551
3552                 internal override PaintEventArgs PaintEventStart (IntPtr handle, bool client)
3553                 {
3554                         PaintEventArgs  paint_event;
3555                         Hwnd            hwnd;
3556
3557                         hwnd = Hwnd.ObjectFromHandle (handle);
3558
3559                         if (Caret.Visible == 1) {
3560                                 Caret.Paused = true;
3561                                 HideCaret ();
3562                         }
3563
3564                         if (client) {
3565                                 // handle backing store
3566                                 IntPtr gdk_window = gdk_window_lookup (hwnd.client_window);
3567                                 IntPtr gdk_pixmap = NewPixmap (gdk_window, hwnd.ClientRect.Width, hwnd.ClientRect.Height);
3568
3569                                 backing_store [gdk_window] = gdk_pixmap;
3570
3571                                 hwnd.client_dc = Graphics.FromHwnd (gdk_x11_drawable_get_xid (gdk_pixmap));
3572                                 hwnd.client_dc.SetClip (hwnd.invalid);
3573                                 paint_event = new PaintEventArgs (hwnd.client_dc, hwnd.invalid);
3574                                 hwnd.expose_pending = false;
3575
3576                                 return paint_event;
3577                         } else {
3578                                 hwnd.client_dc = Graphics.FromHwnd (hwnd.whole_window);
3579                                 paint_event = new PaintEventArgs (hwnd.client_dc, new Rectangle (0, 0, hwnd.width, hwnd.height));
3580                                 hwnd.nc_expose_pending = false;
3581
3582                                 return paint_event;
3583                         }
3584                 }
3585
3586                 internal override void PaintEventEnd (IntPtr handle, bool client)
3587                 {
3588                         Hwnd    hwnd;
3589
3590                         hwnd = Hwnd.ObjectFromHandle (handle);
3591
3592                         hwnd.client_dc.Flush ();
3593
3594                         if (client) {
3595                                 // clients are already drawn to a backing store pixmap
3596                                 IntPtr gdk_window = gdk_window_lookup (hwnd.client_window);
3597                                 IntPtr gdk_pixmap = (IntPtr)backing_store [gdk_window];
3598
3599                                 BlitOffscreenPixmap (gdk_pixmap, gdk_window, hwnd.Invalid);
3600
3601                                 g_object_unref (gdk_pixmap);
3602                                 backing_store.Remove (gdk_pixmap);
3603
3604                                 hwnd.ClearInvalidArea ();
3605                         }
3606
3607                         hwnd.client_dc.Dispose ();
3608                         hwnd.client_dc = null;
3609
3610                         if (Caret.Visible == 1) {
3611                                 ShowCaret ();
3612                                 Caret.Paused = false;
3613                         }
3614                 }
3615
3616                 internal override bool PeekMessage (ref MSG msg, IntPtr hWnd, int wFilterMin, int wFilterMax, uint flags)
3617                 {
3618                         bool    pending;
3619
3620                         // FIXME - imlement filtering
3621
3622                         if ((flags & (uint)PeekMessageFlags.PM_REMOVE) == 0) {
3623                                 throw new NotImplementedException ("PeekMessage PM_NOREMOVE is not implemented yet");   // FIXME - Implement PM_NOREMOVE flag
3624                         }
3625
3626                         pending = false;
3627                         if (MessageQueue.Count > 0) {
3628                                 pending = true;
3629                         } else {
3630                                 // Only call UpdateMessageQueue if real events are pending
3631                                 // otherwise we go to sleep on the socket
3632                                 if (XPending (DisplayHandle) != 0) {
3633                                         UpdateMessageQueue ();
3634                                         pending = true;
3635                                 }
3636                         }
3637
3638                         CheckTimers (DateTime.Now);
3639
3640                         if (!pending) {
3641                                 return false;
3642                         }
3643                         return GetMessage (ref msg, hWnd, wFilterMin, wFilterMax);
3644                 }
3645
3646                 // FIXME - I think this should just enqueue directly
3647                 internal override bool PostMessage (IntPtr handle, Msg message, IntPtr wparam, IntPtr lparam)
3648                 {
3649                         XEvent xevent = new XEvent ();
3650                         Hwnd hwnd = Hwnd.ObjectFromHandle (handle);
3651
3652                         xevent.type = XEventName.ClientMessage;
3653                         xevent.ClientMessageEvent.display = DisplayHandle;
3654
3655                         if (hwnd != null) {
3656                                 xevent.ClientMessageEvent.window = hwnd.whole_window;
3657                         } else {
3658                                 xevent.ClientMessageEvent.window = IntPtr.Zero;
3659                         }
3660
3661                         xevent.ClientMessageEvent.message_type = (IntPtr) PostAtom;
3662                         xevent.ClientMessageEvent.format = 32;
3663                         xevent.ClientMessageEvent.ptr1 = handle;
3664                         xevent.ClientMessageEvent.ptr2 = (IntPtr) message;
3665                         xevent.ClientMessageEvent.ptr3 = wparam;
3666                         xevent.ClientMessageEvent.ptr4 = lparam;
3667
3668                         MessageQueue.Enqueue (xevent);
3669
3670                         return true;
3671                 }
3672
3673                 internal override void PostQuitMessage (int exitCode)
3674                 {
3675                         XFlush (DisplayHandle);
3676                         PostQuitState = true;
3677
3678                         // Remove our display handle from S.D
3679                         Graphics.FromHdcInternal (IntPtr.Zero);
3680                 }
3681
3682                 internal override void ScreenToClient (IntPtr handle, ref int x, ref int y)
3683                 {
3684                         int     dest_x_return;
3685                         int     dest_y_return;
3686                         IntPtr  child;
3687                         Hwnd    hwnd;
3688
3689                         hwnd = Hwnd.ObjectFromHandle (handle);
3690
3691                         lock (XlibLock) {
3692                                 XTranslateCoordinates (DisplayHandle, RootWindow, hwnd.client_window, x, y, out dest_x_return, out dest_y_return, out child);
3693                         }
3694
3695                         x = dest_x_return;
3696                         y = dest_y_return;
3697                 }
3698
3699                 internal override void ScreenToMenu (IntPtr handle, ref int x, ref int y)
3700                 {
3701                         int     dest_x_return;
3702                         int     dest_y_return;
3703                         IntPtr  child;
3704                         Hwnd    hwnd;
3705
3706                         hwnd = Hwnd.ObjectFromHandle (handle);
3707
3708                         lock (XlibLock) {
3709                                 XTranslateCoordinates (DisplayHandle, RootWindow, hwnd.whole_window, x, y, out dest_x_return, out dest_y_return, out child);
3710                         }
3711
3712                         x = dest_x_return;
3713                         y = dest_y_return;
3714                 }
3715
3716                 internal override void ScrollWindow (IntPtr handle, Rectangle area, int XAmount, int YAmount, bool with_children)
3717                 {
3718                         Hwnd            hwnd;
3719                         IntPtr          gc;
3720                         XGCValues       gc_values;
3721
3722                         hwnd = Hwnd.ObjectFromHandle (handle);
3723
3724                         if (hwnd.invalid != Rectangle.Empty) {
3725                                 // BIG FAT WARNING. This only works with how we use this function right now
3726                                 // where we basically still scroll the whole window, but work around areas
3727                                 // that are covered by our children
3728
3729                                 hwnd.invalid.X += XAmount;
3730                                 hwnd.invalid.Y += YAmount;
3731
3732                                 if (hwnd.invalid.X < 0) {
3733                                         hwnd.invalid.Width += hwnd.invalid.X;
3734                                         hwnd.invalid.X = 0;
3735                                 }
3736
3737                                 if (hwnd.invalid.Y < 0) {
3738                                         hwnd.invalid.Height += hwnd.invalid.Y;
3739                                         hwnd.invalid.Y = 0;
3740                                 }
3741                         }
3742
3743                         gc_values = new XGCValues ();
3744
3745                         if (with_children) {
3746                                 gc_values.subwindow_mode = GCSubwindowMode.IncludeInferiors;
3747                         }
3748
3749                         gc = XCreateGC (DisplayHandle, hwnd.client_window, 0, ref gc_values);
3750
3751                         XCopyArea (DisplayHandle, hwnd.client_window, hwnd.client_window, gc, area.X - XAmount, area.Y - YAmount, area.Width, area.Height, area.X, area.Y);
3752
3753                         // Generate an expose for the area exposed by the horizontal scroll
3754                         if (XAmount > 0) {
3755                                 hwnd.AddInvalidArea (area.X, area.Y, XAmount, area.Height);
3756                         } else if (XAmount < 0) {
3757                                 hwnd.AddInvalidArea (XAmount + area.X + area.Width, area.Y, -XAmount, area.Height);
3758                         }
3759
3760                         // Generate an expose for the area exposed by the vertical scroll
3761                         if (YAmount > 0) {
3762                                 hwnd.AddInvalidArea (area.X, area.Y, area.Width, YAmount);
3763                         } else if (YAmount < 0) {
3764                                 hwnd.AddInvalidArea (area.X, YAmount + area.Y + area.Height, area.Width, -YAmount);
3765                         }
3766                         XFreeGC (DisplayHandle, gc);
3767
3768                         UpdateWindow (handle);
3769                 }
3770
3771                 internal override void ScrollWindow (IntPtr handle, int XAmount, int YAmount, bool with_children)
3772                 {
3773                         Hwnd    hwnd;
3774
3775                         hwnd = Hwnd.GetObjectFromWindow (handle);
3776
3777                         ScrollWindow (handle, hwnd.ClientRect, XAmount, YAmount, with_children);
3778                 }
3779
3780                 internal override void SendAsyncMethod (AsyncMethodData method)
3781                 {
3782                         XEvent xevent = new XEvent ();
3783
3784                         xevent.type = XEventName.ClientMessage;
3785                         xevent.ClientMessageEvent.display = DisplayHandle;
3786                         xevent.ClientMessageEvent.window = FosterParent;
3787                         xevent.ClientMessageEvent.message_type = (IntPtr)AsyncAtom;
3788                         xevent.ClientMessageEvent.format = 32;
3789                         xevent.ClientMessageEvent.ptr1 = (IntPtr) GCHandle.Alloc (method);
3790
3791                         MessageQueue.EnqueueLocked (xevent);
3792
3793                         WakeupMain ();
3794                 }
3795
3796                 internal override IntPtr SendMessage (IntPtr hwnd, Msg message, IntPtr wParam, IntPtr lParam)
3797                 {
3798                         return NativeWindow.WndProc (hwnd, message, wParam, lParam);
3799                 }
3800
3801                 internal override void SetAllowDrop (IntPtr handle, bool value)
3802                 {
3803                         // We allow drop on all windows
3804                 }
3805
3806                 internal override DragDropEffects StartDrag (IntPtr handle, object data,
3807                                                              DragDropEffects allowed_effects)
3808                 {
3809                         Hwnd hwnd = Hwnd.ObjectFromHandle (handle);
3810
3811                         if (hwnd == null)
3812                                 throw new ArgumentException ("Attempt to begin drag from invalid window handle (" + handle.ToInt32 () + ").");
3813
3814                         return Dnd.StartDrag (hwnd.client_window, data, allowed_effects);
3815                 }
3816
3817                 internal override void SetBorderStyle (IntPtr handle, FormBorderStyle border_style)
3818                 {
3819                         Hwnd    hwnd;
3820
3821                         hwnd = Hwnd.ObjectFromHandle (handle);
3822
3823                         hwnd.border_style = border_style;
3824
3825                         XMoveResizeWindow (DisplayHandle, hwnd.client_window, hwnd.ClientRect.X, hwnd.ClientRect.Y, hwnd.ClientRect.Width, hwnd.ClientRect.Height);
3826
3827                         InvalidateWholeWindow (handle);
3828                 }
3829
3830                 internal override void SetCaretPos (IntPtr handle, int x, int y)
3831                 {
3832                         if (Caret.Hwnd == handle) {
3833                                 Caret.Timer.Stop ();
3834                                 HideCaret ();
3835
3836                                 Caret.X = x;
3837                                 Caret.Y = y;
3838
3839                                 if (Caret.Visible == 1) {
3840                                         ShowCaret ();
3841                                         Caret.Timer.Start ();
3842                                 }
3843                         }
3844                 }
3845
3846                 internal override void SetCursor (IntPtr handle, IntPtr cursor)
3847                 {
3848                         Hwnd    hwnd;
3849
3850                         if (OverrideCursorHandle == IntPtr.Zero) {
3851                                 if ((LastCursorWindow == handle) && (LastCursorHandle == cursor)) {
3852                                         return;
3853                                 }
3854
3855                                 LastCursorHandle = cursor;
3856                                 LastCursorWindow = handle;
3857
3858                                 hwnd = Hwnd.ObjectFromHandle (handle);
3859                                 lock (XlibLock) {
3860                                         if (cursor != IntPtr.Zero) {
3861                                                 XDefineCursor (DisplayHandle, hwnd.whole_window, cursor);
3862                                         } else {
3863                                                 XUndefineCursor (DisplayHandle, hwnd.whole_window);
3864                                         }
3865                                 }
3866                                 return;
3867                         }
3868
3869                         hwnd = Hwnd.ObjectFromHandle (handle);
3870                         lock (XlibLock) {
3871                                 XDefineCursor (DisplayHandle, hwnd.whole_window, OverrideCursorHandle);
3872                         }
3873                 }
3874
3875                 internal override void SetCursorPos (IntPtr handle, int x, int y)
3876                 {
3877                         if (handle == IntPtr.Zero) {
3878                                 lock (XlibLock) {
3879                                         XWarpPointer (DisplayHandle, IntPtr.Zero, IntPtr.Zero, 0, 0, 0, 0, x, y);
3880                                 }
3881                                 return;
3882                         } else {
3883                                 Hwnd    hwnd;
3884
3885                                 hwnd = Hwnd.ObjectFromHandle (handle);
3886                                 lock (XlibLock) {
3887                                         XWarpPointer (DisplayHandle, IntPtr.Zero, hwnd.client_window, 0, 0, 0, 0, x, y);
3888                                 }
3889                                 return;
3890                         }
3891                 }
3892
3893                 internal override void SetFocus (IntPtr handle)
3894                 {
3895                         Hwnd    hwnd;
3896
3897                         hwnd = Hwnd.ObjectFromHandle (handle);
3898
3899                         if (FocusWindow != IntPtr.Zero) {
3900                                 PostMessage (FocusWindow, Msg.WM_KILLFOCUS, hwnd.client_window, IntPtr.Zero);
3901                         }
3902                         PostMessage (hwnd.client_window, Msg.WM_SETFOCUS, FocusWindow, IntPtr.Zero);
3903                         FocusWindow = hwnd.client_window;
3904
3905                         //XSetInputFocus(DisplayHandle, Hwnd.ObjectFromHandle(handle).client_window, RevertTo.None, IntPtr.Zero);
3906                 }
3907
3908                 internal override void SetIcon (IntPtr handle, Icon icon)
3909                 {
3910                         Hwnd    hwnd;
3911
3912                         hwnd = Hwnd.ObjectFromHandle (handle);
3913                         if (hwnd != null) {
3914                                 SetIcon (hwnd, icon);
3915                         }
3916                 }
3917
3918                 internal override void SetMenu (IntPtr handle, Menu menu)
3919                 {
3920                         Hwnd    hwnd;
3921
3922                         hwnd = Hwnd.ObjectFromHandle (handle);
3923                         hwnd.menu = menu;
3924
3925                         // FIXME - do we need to trigger some resize?
3926                 }
3927
3928                 internal override void SetModal (IntPtr handle, bool Modal)
3929                 {
3930                         if (Modal) {
3931                                 ModalWindows.Push (handle);
3932                         } else {
3933                                 if (ModalWindows.Contains (handle)) {
3934                                         ModalWindows.Pop ();
3935                                 }
3936                                 if (ModalWindows.Count > 0) {
3937                                         Activate ((IntPtr)ModalWindows.Peek ());
3938                                 }
3939                         }
3940                 }
3941
3942                 internal override IntPtr SetParent (IntPtr handle, IntPtr parent)
3943                 {
3944                         Hwnd    hwnd;
3945
3946                         hwnd = Hwnd.ObjectFromHandle (handle);
3947                         hwnd.parent = Hwnd.ObjectFromHandle (parent);
3948
3949                         lock (XlibLock) {
3950                                 #if DriverDebug
3951                                         Console.WriteLine("Parent for window {0:X} / {1:X} = {2:X} (Handle:{3:X})", hwnd.ClientWindow.ToInt32(), hwnd.WholeWindow.ToInt32(), hwnd.parent != null ? hwnd.parent.Handle.ToInt32() : 0, parent.ToInt32());
3952                                 #endif
3953                                 XReparentWindow (DisplayHandle, hwnd.whole_window, hwnd.parent.client_window, hwnd.x, hwnd.y);
3954                         }
3955
3956                         return IntPtr.Zero;
3957                 }
3958
3959                 internal override void SetTimer (Timer timer)
3960                 {
3961                         lock (TimerList) {
3962                                 TimerList.Add (timer);
3963                         }
3964                         WakeupMain ();
3965                 }
3966
3967                 internal override bool SetTopmost (IntPtr handle, IntPtr handle_owner, bool enabled)
3968                 {
3969                         Hwnd    hwnd;
3970                         Hwnd    hwnd_owner;
3971
3972                         hwnd = Hwnd.ObjectFromHandle (handle);
3973
3974                         if (handle_owner != IntPtr.Zero) {
3975                                 hwnd_owner = Hwnd.ObjectFromHandle (handle_owner);
3976                         } else {
3977                                 hwnd_owner = null;
3978                         }
3979
3980                         if (enabled) {
3981                                 lock (XlibLock) {
3982                                         if (hwnd_owner != null) {
3983                                                 XSetTransientForHint (DisplayHandle, hwnd.whole_window, hwnd_owner.whole_window);
3984                                         } else {
3985                                                 XSetTransientForHint (DisplayHandle, hwnd.whole_window, FosterParent);
3986                                         }
3987                                 }
3988                         } else {
3989                                 lock (XlibLock) {
3990                                         XDeleteProperty (DisplayHandle, hwnd.whole_window, (int)Atom.XA_WM_TRANSIENT_FOR);
3991                                 }
3992                         }
3993                         return true;
3994                 }
3995
3996                 internal override bool SetVisible (IntPtr handle, bool visible)
3997                 {
3998                         Hwnd    hwnd;
3999
4000                         hwnd = Hwnd.ObjectFromHandle (handle);
4001                         hwnd.visible = visible;
4002
4003                         lock (XlibLock) {
4004                                 if (visible) {
4005                                         if (Control.FromHandle (handle) is Form) {
4006                                                 FormWindowState s;
4007
4008                                                 s = ((Form)Control.FromHandle (handle)).WindowState;
4009
4010                                                 XMapWindow (DisplayHandle, hwnd.whole_window);
4011                                                 XMapWindow (DisplayHandle, hwnd.client_window);
4012
4013                                                 switch (s) {
4014                                                 case FormWindowState.Minimized: SetWindowState (handle, FormWindowState.Minimized); break;
4015                                                 case FormWindowState.Maximized: SetWindowState (handle, FormWindowState.Maximized); break;
4016                                                 }
4017                                         } else {
4018                                                 XMapWindow (DisplayHandle, hwnd.whole_window);
4019                                                 XMapWindow (DisplayHandle, hwnd.client_window);
4020                                         }
4021                                 } else {
4022                                         XUnmapWindow (DisplayHandle, hwnd.whole_window);
4023                                 }
4024                         }
4025                         return true;
4026                 }
4027
4028                 internal override void SetWindowMinMax (IntPtr handle, Rectangle maximized, Size min, Size max)
4029                 {
4030                         Hwnd            hwnd;
4031                         XSizeHints      hints;
4032
4033                         hwnd = Hwnd.ObjectFromHandle (handle);
4034                         if (hwnd == null) {
4035                                 return;
4036                         }
4037
4038                         hints = new XSizeHints ();
4039
4040                         if (min != Size.Empty) {
4041                                 hints.flags = (IntPtr)((int)hints.flags | (int)XSizeHintsFlags.PMinSize);
4042                                 hints.min_width = min.Width;
4043                                 hints.min_height = min.Height;
4044                         }
4045
4046                         if (max != Size.Empty) {
4047                                 hints.flags = (IntPtr)((int)hints.flags | (int)XSizeHintsFlags.PMaxSize);
4048                                 hints.max_width = max.Width;
4049                                 hints.max_height = max.Height;
4050                         }
4051
4052                         XSetWMNormalHints (DisplayHandle, hwnd.whole_window, ref hints);
4053
4054                         if (maximized != Rectangle.Empty) {
4055                                 hints.flags = (IntPtr)XSizeHintsFlags.PPosition;
4056                                 hints.x = maximized.X;
4057                                 hints.y = maximized.Y;
4058                                 hints.width = maximized.Width;
4059                                 hints.height = maximized.Height;
4060
4061                                 // Metacity does not seem to follow this constraint for maximized (zoomed) windows
4062                                 XSetZoomHints (DisplayHandle, hwnd.whole_window, ref hints);
4063                         }
4064                 }
4065
4066
4067                 internal override void SetWindowPos (IntPtr handle, int x, int y, int width, int height)
4068                 {
4069                         Hwnd            hwnd;
4070                         Rectangle       client_rect;
4071
4072                         hwnd = Hwnd.ObjectFromHandle (handle);
4073
4074                         // X requires a sanity check for width & height; otherwise it dies
4075                         if (hwnd.zero_sized && width > 0 && height > 0) {
4076                                 if (hwnd.visible) {
4077                                         XMapWindow (DisplayHandle, hwnd.whole_window);
4078                                 }
4079                                 hwnd.zero_sized = false;
4080                         }
4081
4082                         if (width < 1) {
4083                                 hwnd.zero_sized = true;
4084                                 XUnmapWindow (DisplayHandle, hwnd.whole_window);
4085                         }
4086
4087                         if (height < 1) {
4088                                 hwnd.zero_sized = true;
4089                                 XUnmapWindow (DisplayHandle, hwnd.whole_window);
4090                         }
4091
4092                         client_rect = Hwnd.GetClientRectangle (hwnd.border_style, hwnd.menu, hwnd.title_style, hwnd.caption_height, hwnd.tool_caption_height, width, height);
4093
4094                         // Save a server roundtrip (and prevent a feedback loop)
4095                         if ((hwnd.x == x) && (hwnd.y == y) &&
4096                             (hwnd.width == width) && (hwnd.height == height) &&
4097                             (hwnd.ClientRect == client_rect)) {
4098                                 return;
4099                         }
4100
4101                         if (!hwnd.zero_sized) {
4102                                 lock (XlibLock) {
4103                                         XMoveResizeWindow (DisplayHandle, hwnd.whole_window, x, y, width, height);
4104                                         XMoveResizeWindow (DisplayHandle, hwnd.client_window, client_rect.X, client_rect.Y, client_rect.Width, client_rect.Height);
4105                                 }
4106                         }
4107
4108                         // Prevent an old queued ConfigureNotify from setting our width with outdated data, set it now
4109                         hwnd.width = width;
4110                         hwnd.height = height;
4111                 }
4112
4113                 internal override void SetWindowState (IntPtr handle, FormWindowState state)
4114                 {
4115                         FormWindowState current_state;
4116                         Hwnd            hwnd;
4117
4118                         hwnd = Hwnd.ObjectFromHandle (handle);
4119
4120                         current_state = GetWindowState (handle);
4121
4122                         if (current_state == state) {
4123                                 return;
4124                         }
4125
4126                         switch (state) {
4127                         case FormWindowState.Normal: {
4128                                         lock (XlibLock) {
4129                                                 if (current_state == FormWindowState.Minimized) {
4130                                                         XMapWindow (DisplayHandle, hwnd.whole_window);
4131                                                         XMapWindow (DisplayHandle, hwnd.client_window);
4132                                                 } else if (current_state == FormWindowState.Maximized) {
4133                                                         SendNetWMMessage (hwnd.whole_window, (IntPtr)(uint)NetAtoms [(int)NA._NET_WM_STATE], (IntPtr)2 /* toggle */, (IntPtr)NetAtoms [(int)NA._NET_WM_STATE_MAXIMIZED_HORZ], (IntPtr)NetAtoms [(int)NA._NET_WM_STATE_MAXIMIZED_VERT]);
4134                                                 }
4135                                         }
4136                                         Activate (handle);
4137                                         return;
4138                                 }
4139
4140                         case FormWindowState.Minimized: {
4141                                         lock (XlibLock) {
4142                                                 if (current_state == FormWindowState.Maximized) {
4143                                                         SendNetWMMessage (hwnd.whole_window, (IntPtr)NetAtoms [(int)NA._NET_WM_STATE], (IntPtr)2 /* toggle */, (IntPtr)NetAtoms [(int)NA._NET_WM_STATE_MAXIMIZED_HORZ], (IntPtr)NetAtoms [(int)NA._NET_WM_STATE_MAXIMIZED_VERT]);
4144                                                 }
4145                                                 XIconifyWindow (DisplayHandle, hwnd.whole_window, ScreenNo);
4146                                         }
4147                                         return;
4148                                 }
4149
4150                         case FormWindowState.Maximized: {
4151                                         lock (XlibLock) {
4152                                                 if (current_state == FormWindowState.Minimized) {
4153                                                         XMapWindow (DisplayHandle, hwnd.whole_window);
4154                                                         XMapWindow (DisplayHandle, hwnd.client_window);
4155                                                 }
4156
4157                                                 SendNetWMMessage (hwnd.whole_window, (IntPtr)NetAtoms [(int)NA._NET_WM_STATE], (IntPtr)1 /* Add */, (IntPtr)NetAtoms [(int)NA._NET_WM_STATE_MAXIMIZED_HORZ], (IntPtr)NetAtoms [(int)NA._NET_WM_STATE_MAXIMIZED_VERT]);
4158                                         }
4159                                         Activate (handle);
4160                                         return;
4161                                 }
4162                         }
4163                 }
4164
4165                 internal override void SetWindowStyle (IntPtr handle, CreateParams cp)
4166                 {
4167                         Hwnd    hwnd;
4168
4169                         hwnd = Hwnd.ObjectFromHandle (handle);
4170                         SetHwndStyles (hwnd, cp);
4171                         SetWMStyles (hwnd, cp);
4172                 }
4173
4174                 internal override void SetWindowTransparency (IntPtr handle, double transparency, Color key)
4175                 {
4176                         Hwnd    hwnd;
4177                         uint    opacity;
4178
4179                         hwnd = Hwnd.ObjectFromHandle (handle);
4180
4181                         if (hwnd == null) {
4182                                 return;
4183                         }
4184
4185                         hwnd.opacity = (uint)(0xffffffff * transparency);
4186                         opacity = hwnd.opacity;
4187
4188                         if (hwnd.reparented) {
4189                                 XChangeProperty (DisplayHandle, XGetParent (hwnd.whole_window), NetAtoms [(int)NA._NET_WM_WINDOW_OPACITY], Atom.XA_CARDINAL, 32, PropertyMode.Replace, ref opacity, 1);
4190                         }
4191                 }
4192
4193                 internal override bool SetZOrder (IntPtr handle, IntPtr after_handle, bool top, bool bottom)
4194                 {
4195                         Hwnd    hwnd = Hwnd.ObjectFromHandle (handle);
4196
4197                         if (top) {
4198                                 lock (XlibLock) {
4199                                         XRaiseWindow (DisplayHandle, hwnd.whole_window);
4200                                 }
4201                                 return true;
4202                         } else if (!bottom) {
4203                                 Hwnd    after_hwnd = null;
4204
4205                                 if (after_handle != IntPtr.Zero) {
4206                                         after_hwnd = Hwnd.ObjectFromHandle (after_handle);
4207                                 }
4208
4209                                 XWindowChanges  values = new XWindowChanges ();
4210
4211                                 if (after_hwnd == null) {
4212                                         throw new ArgumentNullException ("after_handle", "Need sibling to adjust z-order");
4213                                 }
4214                                 values.sibling = after_hwnd.whole_window;
4215                                 values.stack_mode = StackMode.Below;
4216
4217                                 lock (XlibLock) {
4218                                         XConfigureWindow (DisplayHandle, hwnd.whole_window, ChangeWindowFlags.CWStackMode | ChangeWindowFlags.CWSibling, ref values);
4219                                 }
4220                         } else {
4221                                 // Bottom
4222                                 lock (XlibLock) {
4223                                         XLowerWindow (DisplayHandle, hwnd.whole_window);
4224                                 }
4225                                 return true;
4226                         }
4227                         return false;
4228                 }
4229
4230                 internal override void ShowCursor (bool show)
4231                 {
4232                         ;       // FIXME - X11 doesn't 'hide' the cursor. we could create an empty cursor
4233                 }
4234
4235                 internal override void StartLoop (Thread thread)
4236                 {
4237                         // Future place for prepping a new queue for this specific thread
4238                 }
4239
4240                 internal override bool SupportsTransparency ()
4241                 {
4242                         // We need to check if the x compositing manager is running
4243                         return true;
4244                 }
4245
4246                 internal override bool SystrayAdd (IntPtr handle, string tip, Icon icon, out ToolTip tt)
4247                 {
4248                         GetSystrayManagerWindow ();
4249
4250                         if (SystrayMgrWindow != IntPtr.Zero) {
4251                                 uint[]          atoms;
4252                                 XSizeHints      size_hints;
4253                                 Hwnd            hwnd;
4254
4255                                 hwnd = Hwnd.ObjectFromHandle (handle);
4256                                 #if DriverDebug
4257                                         Console.WriteLine("Adding Systray Whole:{0:X}, Client:{1:X}", hwnd.whole_window.ToInt32(), hwnd.client_window.ToInt32());
4258                                 #endif
4259
4260                                 XUnmapWindow (DisplayHandle, hwnd.whole_window);
4261                                 XUnmapWindow (DisplayHandle, hwnd.client_window);
4262
4263                                 // Oh boy.
4264                                 gdk_window_destroy (gdk_window_lookup (hwnd.client_window));
4265                                 hwnd.client_window = hwnd.whole_window;
4266
4267                                 size_hints = new XSizeHints ();
4268
4269                                 size_hints.flags = (IntPtr)(XSizeHintsFlags.PMinSize | XSizeHintsFlags.PMaxSize | XSizeHintsFlags.PBaseSize);
4270                                 size_hints.min_width = icon.Width;
4271                                 size_hints.min_height = icon.Height;
4272
4273                                 size_hints.max_width = icon.Width;
4274                                 size_hints.max_height = icon.Height;
4275
4276                                 size_hints.base_width = icon.Width;
4277                                 size_hints.base_height = icon.Height;
4278                                 XSetWMNormalHints (DisplayHandle, hwnd.whole_window, ref size_hints);
4279
4280                                 atoms = new uint [2];
4281                                 atoms [0] = 1;  // Version 1
4282                                 atoms [1] = 0;  // We're not mapped
4283
4284                                 // This line cost me 3 days...
4285                                 XChangeProperty (DisplayHandle, hwnd.whole_window, NetAtoms [(int)NA._XEMBED_INFO], NetAtoms [(int)NA._XEMBED_INFO], 32, PropertyMode.Replace, atoms, 2);
4286
4287                                 // Need to pick some reasonable defaults
4288                                 tt = new ToolTip ();
4289                                 tt.AutomaticDelay = 100;
4290                                 tt.InitialDelay = 250;
4291                                 tt.ReshowDelay = 250;
4292                                 tt.ShowAlways = true;
4293
4294                                 if ((tip != null) && (tip != string.Empty)) {
4295                                         tt.SetToolTip (Control.FromHandle (handle), tip);
4296                                         tt.Active = true;
4297                                 } else {
4298                                         tt.Active = false;
4299                                 }
4300
4301                                 // Make sure the window exists
4302                                 XSync (DisplayHandle, hwnd.whole_window);
4303
4304                                 SendNetClientMessage (SystrayMgrWindow, (IntPtr)NetAtoms [(int)NA._NET_SYSTEM_TRAY_OPCODE], IntPtr.Zero, (IntPtr)SystrayRequest.SYSTEM_TRAY_REQUEST_DOCK, hwnd.whole_window);
4305                                 return true;
4306                         }
4307
4308                         tt = null;
4309                         return false;
4310                 }
4311
4312                 internal override bool SystrayChange (IntPtr handle, string tip, Icon icon, ref ToolTip tt)
4313                 {
4314                         Control control;
4315
4316                         control = Control.FromHandle (handle);
4317                         if (control != null && tt != null) {
4318                                 tt.SetToolTip (control, tip);
4319                                 tt.Active = true;
4320                                 return true;
4321                         } else {
4322                                 return false;
4323                         }
4324                 }
4325
4326                 internal override void SystrayRemove (IntPtr handle, ref ToolTip tt)
4327                 {
4328                         Hwnd    hwnd;
4329
4330                         hwnd = Hwnd.ObjectFromHandle (handle);
4331
4332                         XUnmapWindow (DisplayHandle, hwnd.whole_window);
4333                         SetParent (hwnd.whole_window, FosterParent);
4334
4335                         // The caller can now re-dock it later...
4336                         if (tt != null) {
4337                                 tt.Dispose ();
4338                                 tt = null;
4339                         }
4340                 }
4341
4342                 internal override bool Text (IntPtr handle, string text)
4343                 {
4344                         lock (XlibLock) {
4345                                 gdk_window_set_title (gdk_window_lookup (Hwnd.ObjectFromHandle (handle).whole_window), text);
4346                         }
4347                         return true;
4348                 }
4349
4350                 internal override bool TranslateMessage (ref MSG msg)
4351                 {
4352                         return Keyboard.TranslateMessage (ref msg);
4353                 }
4354
4355                 internal override void UpdateWindow (IntPtr handle)
4356                 {
4357                         XEvent  xevent;
4358                         Hwnd    hwnd;
4359
4360                         hwnd = Hwnd.ObjectFromHandle (handle);
4361
4362                         if (!hwnd.visible || hwnd.expose_pending) {
4363                                 return;
4364                         }
4365
4366                         #if not
4367                         SendMessage(handle, Msg.WM_PAINT, IntPtr.Zero, IntPtr.Zero);
4368                         #else
4369                         xevent = new XEvent ();
4370                         xevent.type = XEventName.Expose;
4371                         xevent.ExposeEvent.display = DisplayHandle;
4372                         xevent.ExposeEvent.window = hwnd.client_window;
4373
4374                         MessageQueue.Enqueue (xevent);
4375                         hwnd.expose_pending = true;
4376                         #endif
4377                 }
4378
4379                 internal static IntPtr NewPixmap (IntPtr gdk_window, int width, int height)
4380                 {
4381                         return gdk_pixmap_new (gdk_window, width, height, 24); // FIXME: instead of 24, get the correct display depth
4382                 }
4383
4384                 internal static void BlitOffscreenPixmap (IntPtr gdk_pixmap, IntPtr dest_drawable, Rectangle area)
4385                 {
4386                         IntPtr gdk_gc = gdk_gc_new (gdk_pixmap);
4387
4388                         gdk_draw_drawable (dest_drawable, gdk_gc, gdk_pixmap, area.X, area.Y, area.X, area.Y, area.Width, area.Height);
4389
4390                         g_object_unref (gdk_gc);
4391                 }
4392                 #endregion      // Public Static Methods
4393
4394                 #region Events
4395                 internal override event EventHandler Idle;
4396                 #endregion      // Events
4397
4398                 #region X11 Imports
4399                 [DllImport ("libX11", EntryPoint="XSynchronize")]
4400                 internal extern static IntPtr XSynchronize (IntPtr display, bool onoff);
4401
4402                 [DllImport ("libX11", EntryPoint="XCreateWindow")]
4403                 internal extern static IntPtr XCreateWindow (IntPtr display, IntPtr parent, int x, int y, int width, int height, int border_width, int depth, int xclass, IntPtr visual, SetWindowValuemask valuemask, ref XSetWindowAttributes attributes);
4404                 [DllImport ("libX11", EntryPoint="XCreateSimpleWindow")]
4405                 internal extern static IntPtr XCreateSimpleWindow (IntPtr display, IntPtr parent, int x, int y, int width, int height, int border_width, int border, int background);
4406                 [DllImport ("libX11", EntryPoint="XMapWindow")]
4407                 internal extern static int XMapWindow (IntPtr display, IntPtr window);
4408                 [DllImport ("libX11", EntryPoint="XUnmapWindow")]
4409                 internal extern static int XUnmapWindow (IntPtr display, IntPtr window);
4410                 [DllImport ("libX11", EntryPoint="XMapSubwindows")]
4411                 internal extern static int XMapSubindows (IntPtr display, IntPtr window);
4412                 [DllImport ("libX11", EntryPoint="XUnmapSubwindows")]
4413                 internal extern static int XUnmapSubwindows (IntPtr display, IntPtr window);
4414                 [DllImport ("libX11", EntryPoint="XRootWindow")]
4415                 internal extern static IntPtr XRootWindow (IntPtr display, int screen_number);
4416                 [DllImport ("libX11", EntryPoint="XNextEvent")]
4417                 internal extern static IntPtr XNextEvent (IntPtr display, ref XEvent xevent);
4418                 [DllImport ("libX11")]
4419                 internal extern static int XConnectionNumber (IntPtr diplay);
4420                 [DllImport ("libX11")]
4421                 internal extern static int XPending (IntPtr diplay);
4422                 [DllImport ("libX11")]
4423                 internal extern static bool XCheckWindowEvent (IntPtr display, IntPtr window, EventMask mask, ref XEvent xevent);
4424                 [DllImport ("libX11")]
4425                 internal extern static bool XCheckMaskEvent (IntPtr display, EventMask mask, ref XEvent xevent);
4426                 [DllImport ("libX11", EntryPoint="XSelectInput")]
4427                 internal extern static IntPtr XSelectInput (IntPtr display, IntPtr window, EventMask mask);
4428
4429                 [DllImport ("libX11", EntryPoint="XReparentWindow")]
4430                 internal extern static int XReparentWindow (IntPtr display, IntPtr window, IntPtr parent, int x, int y);
4431                 [DllImport ("libX11", EntryPoint="XMoveResizeWindow")]
4432                 internal extern static int XMoveResizeWindow (IntPtr display, IntPtr window, int x, int y, int width, int height);
4433
4434                 [DllImport ("libX11", EntryPoint="XResizeWindow")]
4435                 internal extern static int XResizeWindow (IntPtr display, IntPtr window, int width, int height);
4436
4437                 [DllImport ("libX11", EntryPoint="XGetWindowAttributes")]
4438                 internal extern static int XGetWindowAttributes (IntPtr display, IntPtr window, ref XWindowAttributes attributes);
4439
4440                 [DllImport ("libX11", EntryPoint="XFlush")]
4441                 internal extern static int XFlush (IntPtr display);
4442
4443                 [DllImport ("libX11", EntryPoint="XSetWMName")]
4444                 internal extern static int XSetWMName (IntPtr display, IntPtr window, ref XTextProperty text_prop);
4445
4446                 [DllImport ("libX11", EntryPoint="XStoreName")]
4447                 internal extern static int XStoreName (IntPtr display, IntPtr window, string window_name);
4448
4449                 [DllImport ("libX11", EntryPoint="XFetchName")]
4450                 internal extern static int XFetchName (IntPtr display, IntPtr window, ref IntPtr window_name);
4451
4452                 [DllImport ("libX11", EntryPoint="XSendEvent")]
4453                 internal extern static int XSendEvent (IntPtr display, IntPtr window, bool propagate, EventMask event_mask, ref XEvent send_event);
4454
4455                 [DllImport ("libX11", EntryPoint="XQueryTree")]
4456                 internal extern static int XQueryTree (IntPtr display, IntPtr window, out IntPtr root_return, out IntPtr parent_return, out IntPtr children_return, out int nchildren_return);
4457
4458                 [DllImport ("libX11", EntryPoint="XFree")]
4459                 internal extern static int XFree (IntPtr data);
4460
4461                 [DllImport ("libX11", EntryPoint="XRaiseWindow")]
4462                 internal extern static int XRaiseWindow (IntPtr display, IntPtr window);
4463
4464                 [DllImport ("libX11", EntryPoint="XLowerWindow")]
4465                 internal extern static uint XLowerWindow (IntPtr display, IntPtr window);
4466
4467                 [DllImport ("libX11", EntryPoint="XConfigureWindow")]
4468                 internal extern static uint XConfigureWindow (IntPtr display, IntPtr window, ChangeWindowFlags value_mask, ref XWindowChanges values);
4469
4470                 [DllImport ("libX11", EntryPoint="XInternAtom")]
4471                 internal extern static int XInternAtom (IntPtr display, string atom_name, bool only_if_exists);
4472
4473                 [DllImport ("libX11", EntryPoint="XSetWMProtocols")]
4474                 internal extern static int XSetWMProtocols (IntPtr display, IntPtr window, uint[] protocols, int count);
4475
4476                 [DllImport ("libX11", EntryPoint="XGrabPointer")]
4477                 internal extern static int XGrabPointer (IntPtr display, IntPtr window, bool owner_events, EventMask event_mask, GrabMode pointer_mode, GrabMode keyboard_mode, IntPtr confine_to, uint cursor, uint timestamp);
4478
4479                 [DllImport ("libX11", EntryPoint="XUngrabPointer")]
4480                 internal extern static int XUngrabPointer (IntPtr display, uint timestamp);
4481
4482                 [DllImport ("libX11", EntryPoint="XQueryPointer")]
4483                 internal extern static bool XQueryPointer (IntPtr display, IntPtr window, out IntPtr root, out IntPtr child, out int root_x, out int root_y, out int win_x, out int win_y, out int keys_buttons);
4484
4485                 [DllImport ("libX11", EntryPoint="XTranslateCoordinates")]
4486                 internal extern static bool XTranslateCoordinates (IntPtr display, IntPtr src_w, IntPtr dest_w, int src_x, int src_y, out int intdest_x_return,  out int dest_y_return, out IntPtr child_return);
4487
4488                 [DllImport ("libX11", EntryPoint="XWarpPointer")]
4489                 internal extern static uint XWarpPointer (IntPtr display, IntPtr src_w, IntPtr dest_w, int src_x, int src_y, uint src_width, uint src_height, int dest_x, int dest_y);
4490
4491                 [DllImport ("libX11", EntryPoint="XClearWindow")]
4492                 internal extern static int XClearWindow (IntPtr display, IntPtr window);
4493
4494                 [DllImport ("libX11", EntryPoint="XClearArea")]
4495                 internal extern static int XClearArea (IntPtr display, IntPtr window, int x, int y, int width, int height, bool exposures);
4496
4497                 // Colormaps
4498                 [DllImport ("libX11", EntryPoint="XDefaultScreenOfDisplay")]
4499                 internal extern static IntPtr XDefaultScreenOfDisplay (IntPtr display);
4500
4501                 [DllImport ("libX11", EntryPoint="XScreenNumberOfScreen")]
4502                 internal extern static int XScreenNumberOfScreen (IntPtr display, IntPtr Screen);
4503
4504                 [DllImport ("libX11", EntryPoint="XDefaultVisual")]
4505                 internal extern static IntPtr XDefaultVisual (IntPtr display, int screen_number);
4506
4507                 [DllImport ("libX11", EntryPoint="XDefaultDepth")]
4508                 internal extern static uint XDefaultDepth (IntPtr display, int screen_number);
4509
4510                 [DllImport ("libX11", EntryPoint="XDefaultColormap")]
4511                 internal extern static IntPtr XDefaultColormap (IntPtr display, int screen_number);
4512
4513                 [DllImport ("libX11", EntryPoint="XLookupColor")]
4514                 internal extern static int XLookupColor (IntPtr display, IntPtr Colormap, string Coloranem, ref XColor exact_def_color, ref XColor screen_def_color);
4515
4516                 [DllImport ("libX11", EntryPoint="XAllocColor")]
4517                 internal extern static int XAllocColor (IntPtr display, IntPtr Colormap, ref XColor colorcell_def);
4518
4519                 [DllImport ("libX11", EntryPoint="XSetTransientForHint")]
4520                 internal extern static int XSetTransientForHint (IntPtr display, IntPtr window, IntPtr prop_window);
4521
4522                 [DllImport ("libX11", EntryPoint="XChangeProperty")]
4523                 internal extern static int XChangeProperty (IntPtr display, IntPtr window, int property, int type, int format, PropertyMode  mode, ref MotifWmHints data, int nelements);
4524
4525                 [DllImport ("libX11", EntryPoint="XChangeProperty")]
4526                 internal extern static int XChangeProperty (IntPtr display, IntPtr window, int property, Atom format, int type, PropertyMode  mode, uint[] atoms, int nelements);
4527
4528                 [DllImport ("libX11", EntryPoint="XChangeProperty")]
4529                 internal extern static int XChangeProperty (IntPtr display, IntPtr window, int property, Atom format, int type, PropertyMode  mode, ref uint value, int nelements);
4530
4531                 [DllImport ("libX11", EntryPoint="XChangeProperty")]
4532                 internal extern static int XChangeProperty (IntPtr display, IntPtr window, int property, int format, int type, PropertyMode  mode, uint[] atoms, int nelements);
4533
4534                 [DllImport ("libX11", EntryPoint="XChangeProperty")]
4535                 internal extern static int XChangeProperty (IntPtr display, IntPtr window, int property, int format, int type, PropertyMode  mode, IntPtr atoms, int nelements);
4536
4537                 [DllImport ("libX11", EntryPoint="XChangeProperty")]
4538                 internal extern static int XChangeProperty (IntPtr display, IntPtr window, int property, Atom format, int type, PropertyMode  mode, IntPtr atoms, int nelements);
4539
4540                 [DllImport ("libX11", EntryPoint="XChangeProperty", CharSet=CharSet.Ansi)]
4541                 internal extern static int XChangeProperty (IntPtr display, IntPtr window, int property, int type, int format, PropertyMode  mode, string text, int text_length);
4542
4543                 [DllImport ("libX11", EntryPoint="XDeleteProperty")]
4544                 internal extern static int XDeleteProperty (IntPtr display, IntPtr window, int property);
4545
4546                 [DllImport ("gdiplus", EntryPoint="GetFontMetrics")]
4547                 internal extern static bool GetFontMetrics (IntPtr graphicsObject, IntPtr nativeObject, out int ascent, out int descent);
4548
4549                 // Drawing
4550                 [DllImport ("libX11", EntryPoint="XCreateGC")]
4551                 internal extern static IntPtr XCreateGC (IntPtr display, IntPtr window, GCFunction valuemask, ref XGCValues values);
4552
4553                 [DllImport ("libX11", EntryPoint="XFreeGC")]
4554                 internal extern static int XFreeGC (IntPtr display, IntPtr gc);
4555
4556                 [DllImport ("libX11", EntryPoint="XSetFunction")]
4557                 internal extern static int XSetFunction (IntPtr display, IntPtr gc, GXFunction function);
4558
4559                 [DllImport ("libX11", EntryPoint="XDrawLine")]
4560                 internal extern static int XDrawLine (IntPtr display, IntPtr drawable, IntPtr gc, int x1, int y1, int x2, int y2);
4561
4562                 [DllImport ("libX11", EntryPoint="XDrawRectangle")]
4563                 internal extern static int XDrawRectangle (IntPtr display, IntPtr drawable, IntPtr gc, int x1, int y1, int width, int height);
4564
4565                 [DllImport ("libX11", EntryPoint="XSetWindowBackground")]
4566                 internal extern static int XSetWindowBackground (IntPtr display, IntPtr window, IntPtr background);
4567
4568                 [DllImport ("libX11", EntryPoint="XCopyArea")]
4569                 internal extern static int XCopyArea (IntPtr display, IntPtr src, IntPtr dest, IntPtr gc, int src_x, int src_y, int width, int height, int dest_x, int dest_y);
4570
4571                 [DllImport ("libX11", EntryPoint="XGetAtomName")]
4572                 internal extern static string XGetAtomName (IntPtr display, int atom);
4573
4574                 [DllImport ("libX11", EntryPoint="XGetWindowProperty")]
4575                 internal extern static int XGetWindowProperty (IntPtr display, IntPtr window, int atom, int long_offset, int long_length, bool delete, Atom req_type, out Atom actual_type, out int actual_format, out int nitems, out int bytes_after, ref IntPtr prop);
4576
4577                 [DllImport ("libX11", EntryPoint="XSetInputFocus")]
4578                 internal extern static int XSetInputFocus (IntPtr display, IntPtr window, RevertTo revert_to, IntPtr time);
4579
4580                 [DllImport ("libX11", EntryPoint="XIconifyWindow")]
4581                 internal extern static int XIconifyWindow (IntPtr display, IntPtr window, int screen_number);
4582
4583                 [DllImport ("libX11", EntryPoint="XDefineCursor")]
4584                 internal extern static int XDefineCursor (IntPtr display, IntPtr window, IntPtr cursor);
4585
4586                 [DllImport ("libX11", EntryPoint="XUndefineCursor")]
4587                 internal extern static int XUndefineCursor (IntPtr display, IntPtr window);
4588
4589                 [DllImport ("libX11", EntryPoint="XFreeCursor")]
4590                 internal extern static int XFreeCursor (IntPtr display, IntPtr cursor);
4591
4592                 [DllImport ("libX11", EntryPoint="XCreateFontCursor")]
4593                 internal extern static IntPtr XCreateFontCursor (IntPtr display, CursorFontShape shape);
4594
4595                 [DllImport ("libX11", EntryPoint="XCreatePixmapCursor")]
4596                 internal extern static IntPtr XCreatePixmapCursor (IntPtr display, IntPtr source, IntPtr mask, ref XColor foreground_color, ref XColor background_color, int x_hot, int y_hot);
4597
4598                 [DllImport ("libX11", EntryPoint="XCreatePixmapFromBitmapData")]
4599                 internal extern static IntPtr XCreatePixmapFromBitmapData (IntPtr display, IntPtr drawable, byte[] data, int width, int height, IntPtr fg, IntPtr bg, int depth);
4600
4601                 [DllImport ("libX11", EntryPoint="XFreePixmap")]
4602                 internal extern static IntPtr XFreePixmap (IntPtr display, IntPtr pixmap);
4603
4604                 [DllImport ("libX11", EntryPoint="XWhitePixel")]
4605                 internal extern static IntPtr XWhitePixel (IntPtr display, int screen_no);
4606
4607                 [DllImport ("libX11", EntryPoint="XBlackPixel")]
4608                 internal extern static IntPtr XBlackPixel (IntPtr display, int screen_no);
4609
4610                 [DllImport ("libX11", EntryPoint="XGrabServer")]
4611                 internal extern static void XGrabServer (IntPtr display);
4612
4613                 [DllImport ("libX11", EntryPoint="XUngrabServer")]
4614                 internal extern static void XUngrabServer (IntPtr display);
4615
4616                 [DllImport ("libX11", EntryPoint="XSetWMNormalHints")]
4617                 internal extern static void XSetWMNormalHints (IntPtr display, IntPtr window, ref XSizeHints hints);
4618
4619                 [DllImport ("libX11", EntryPoint="XSetZoomHints")]
4620                 internal extern static void XSetZoomHints (IntPtr display, IntPtr window, ref XSizeHints hints);
4621
4622                 [DllImport ("libX11", EntryPoint="XSetWMHints")]
4623                 internal extern static void XSetWMHints (IntPtr display, IntPtr window, ref XWMHints wmhints);
4624
4625                 [DllImport ("libX11", EntryPoint="XSync")]
4626                 internal extern static void XSync (IntPtr display, IntPtr window);
4627
4628                 [DllImport ("libX11", EntryPoint="XGetIconSizes")]
4629                 internal extern static int XGetIconSizes (IntPtr display, IntPtr window, out IntPtr size_list, out int count);
4630
4631                 [DllImport ("libX11", EntryPoint="XSetErrorHandler")]
4632                 internal extern static IntPtr XSetErrorHandler (XErrorHandler error_handler);
4633
4634                 [DllImport ("libX11", EntryPoint="XGetErrorText")]
4635                 internal extern static IntPtr XGetErrorText (IntPtr display, byte code, StringBuilder buffer, int length);
4636
4637                 [DllImport ("libX11", EntryPoint="XInitThreads")]
4638                 internal extern static int XInitThreads ();
4639
4640                 [DllImport ("libX11", EntryPoint="XConvertSelection")]
4641                 internal extern static int XConvertSelection (IntPtr display, int selection, int target, int property, IntPtr requestor, IntPtr time);
4642
4643                 [DllImport ("libX11", EntryPoint="XGetSelectionOwner")]
4644                 internal extern static IntPtr XGetSelectionOwner (IntPtr display, int selection);
4645
4646                 [DllImport ("libX11", EntryPoint="XSetSelectionOwner")]
4647                 internal extern static int XSetSelectionOwner (IntPtr display, int selection, IntPtr owner, IntPtr time);
4648
4649                 [DllImport ("libX11", EntryPoint="XSetPlaneMask")]
4650                 internal extern static int XSetPlaneMask (IntPtr display, IntPtr gc, uint mask);
4651
4652                 [DllImport ("libX11", EntryPoint="XSetForeground")]
4653                 internal extern static int XSetForeground (IntPtr display, IntPtr gc, uint foreground);
4654
4655                 [DllImport ("libX11", EntryPoint="XSetBackground")]
4656                 internal extern static int XSetBackground (IntPtr display, IntPtr gc, uint background);
4657
4658                 #endregion
4659
4660                 #region gdk imports
4661                 [DllImport("libgdk-x11-2.0.so")]
4662                 static extern bool gdk_init_check (IntPtr argc, IntPtr argv);
4663
4664                 [DllImport("libgdk-x11-2.0.so")]
4665                 internal static extern IntPtr gdk_x11_display_get_xdisplay (IntPtr display);
4666
4667                 [DllImport("libgdk-x11-2.0.so")]
4668                 internal static extern IntPtr gdk_display_get_default ();
4669
4670                 [DllImport("libgdk-x11-2.0.so")]
4671                 static extern IntPtr gdk_pixmap_new (IntPtr drawable, int width, int height, int depth);
4672
4673                 [DllImport("libgdk-x11-2.0.so")]
4674                 static extern IntPtr gdk_x11_drawable_get_xid (IntPtr gdkdrawable);
4675
4676                 [DllImport("libgdk-x11-2.0.so")]
4677                 static extern void gdk_draw_drawable (IntPtr drawable_dest, IntPtr gdk_gc, IntPtr drawable_src, int xsrc, int ysrc, int xdest, int ydest, int width, int height);
4678
4679                 [DllImport("libgdk-x11-2.0.so")]
4680                 static extern IntPtr gdk_gc_new (IntPtr drawable);
4681
4682                 [DllImport("libgdk-x11-2.0.so")]
4683                 static extern IntPtr gdk_window_foreign_new (IntPtr anid);
4684
4685                 [DllImport("libgdk-x11-2.0.so")]
4686                 static extern IntPtr gdk_x11_lookup_xdisplay (IntPtr xdisplay);
4687
4688                 [DllImport("libgdk-x11-2.0.so")]
4689                 static extern void gdk_display_close (IntPtr display);
4690
4691                 [DllImport("libgdk-x11-2.0.so")]
4692                 static extern void gdk_display_beep (IntPtr display);
4693
4694                 [DllImport("libgdk-x11-2.0.so")]
4695                 static extern void gdk_display_sync (IntPtr display);
4696
4697                 [DllImport("libgdk-x11-2.0.so")]
4698                 static extern IntPtr gdk_get_default_root_window ();
4699
4700                 [DllImport("libgdk-x11-2.0.so")]
4701                 static extern IntPtr gdk_colormap_get_system ();
4702
4703                 [DllImport("libgdk-x11-2.0.so")]
4704                 static extern IntPtr gdk_x11_colormap_get_xcolormap  (IntPtr gdk_colormap);
4705
4706                 [DllImport("libgdk-x11-2.0.so")]
4707                 static extern void gdk_window_destroy (IntPtr gdk_window);
4708
4709                 [DllImport("libgdk-x11-2.0.so")]
4710                 static extern void gdk_x11_grab_server ();
4711
4712                 [DllImport("libgdk-x11-2.0.so")]
4713                 static extern void gdk_x11_ungrab_server ();
4714
4715                 [DllImport("libgdk-x11-2.0.so")]
4716                 static extern void gdk_display_flush (IntPtr gdk_display);
4717
4718                 [DllImport("libgdk-x11-2.0.so")]
4719                 static extern void gdk_window_iconify (IntPtr gdk_window);
4720
4721                 [DllImport("libgdk-x11-2.0.so")]
4722                 static extern void gdk_window_deiconify (IntPtr gdk_window);
4723
4724                 [DllImport("libgdk-x11-2.0.so")]
4725                 static extern void gdk_window_set_decorations (IntPtr gdk_window, int decorations);
4726
4727                 [DllImport("libgdk-x11-2.0.so")]
4728                 static extern IntPtr gdk_screen_get_default ();
4729
4730                 [DllImport("libgdk-x11-2.0.so")]
4731                 static extern int gdk_screen_get_number (IntPtr gdk_screen);
4732
4733                 [DllImport("libgdk-x11-2.0.so")]
4734                 static extern IntPtr gdk_window_lookup (IntPtr anid);
4735
4736                 [DllImport("libgdk-x11-2.0.so")]
4737                 static extern IntPtr gdk_window_new (IntPtr gdk_parent, ref GdkWindowAttr gdk_window_attributes, int attributes_mask);
4738
4739                 [DllImport("libgdk-x11-2.0.so")]
4740                 static extern void gdk_window_set_events (IntPtr gdk_window, int event_mask);
4741
4742                 [DllImport("libgdk-x11-2.0.so")]
4743                 static extern void gdk_window_show (IntPtr window);
4744
4745                 [DllImport("libgdk-x11-2.0.so")]
4746                 static extern void gdk_window_set_title (IntPtr gdk_window, string title);
4747
4748                 [DllImport("libgdk-x11-2.0.so")]
4749                 static extern int gdk_window_get_origin (IntPtr gdk_window, out int x, out int y);
4750
4751                 [DllImport("libgdk-x11-2.0.so")]
4752                 static extern void gdk_window_get_geometry (IntPtr gdk_window, out int x, out int y, out int width, out int height, out int depth);
4753
4754                 [DllImport("libgdk-x11-2.0.so")]
4755                 static extern void gdk_property_change (IntPtr gdk_window, /*GdkAtom*/IntPtr property, /*GdkAtom*/IntPtr type, int format, int gdk_prop_mode, /*const guchar **/ IntPtr data, int nelements);
4756
4757                 [DllImport("libgdk-x11-2.0.so")]
4758                 static extern IntPtr gdk_window_get_parent (IntPtr gdk_window);
4759
4760                 [DllImport("libgdk-x11-2.0.so")]
4761                 static extern void gdk_display_get_maximal_cursor_size (IntPtr gdk_display, out uint width, out uint height);
4762
4763                 [DllImport("libgdk-x11-2.0.so")]
4764                 static extern int gdk_visual_get_best_depth ();
4765                 #endregion
4766
4767                 #region gobject imports
4768                 [DllImport("libglib-2.0.so")]
4769                 static extern void g_free (IntPtr mem);
4770
4771                 [DllImport("libgobject-2.0.so")]
4772                 static extern void g_object_unref (IntPtr nativeObject);
4773                 #endregion
4774         }
4775 }