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