mcs/class/Managed.Windows.Forms/System.Windows.Forms/Form.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 //
  25
  26 // NOT COMPLETE
  27
  28 using System;
  29 using System.Drawing;
  30 using System.ComponentModel;
  31 using System.ComponentModel.Design;
  32 using System.ComponentModel.Design.Serialization;
  33 using System.Collections;
  34 using System.Runtime.InteropServices;
  35 using System.Threading;
  36
  37 namespace System.Windows.Forms {
  38         [DesignerCategory("Form")]
  39         [DesignTimeVisible(false)]
  40         [Designer("System.Windows.Forms.Design.FormDocumentDesigner, " + Consts.AssemblySystem_Design, typeof(IRootDesigner))]
  41         [DefaultEvent("Load")]
  42 #if NET_2_0
  43         [ClassInterface (ClassInterfaceType.AutoDispatch)]
  44         [InitializationEvent ("Load")]
  45         [ComVisible (true)]
  46 #endif
  47         [ToolboxItem(false)]
  48         public class Form : ContainerControl {
  49                 #region Local Variables
  50                 internal bool                   closing;
  51                 FormBorderStyle                 form_border_style;
  52                 private bool                    autoscale;
  53                 private Size                    clientsize_set;
  54                 private Size                    autoscale_base_size;
  55                 private bool                    allow_transparency;
  56                 private static Icon             default_icon;
  57                 internal bool                   is_modal;
  58                 internal FormWindowState        window_state;
  59                 private bool                    control_box;
  60                 private bool                    minimize_box;
  61                 private bool                    maximize_box;
  62                 private bool                    help_button;
  63                 private bool                    show_in_taskbar;
  64                 private bool                    topmost;
  65                 private IButtonControl          accept_button;
  66                 private IButtonControl          cancel_button;
  67                 private DialogResult            dialog_result;
  68                 private FormStartPosition       start_position;
  69                 private Form                    owner;
  70                 private Form.ControlCollection  owned_forms;
  71                 private MdiClient               mdi_container;
  72                 internal InternalWindowManager  window_manager;
  73                 private Form                    mdi_parent;
  74                 private bool                    key_preview;
  75                 private MainMenu                menu;
  76                 private Icon                    icon;
  77                 private Size                    maximum_size;
  78                 private Size                    minimum_size;
  79                 private SizeGripStyle           size_grip_style;
  80                 private SizeGrip                size_grip;
  81                 private Rectangle               maximized_bounds;
  82                 private Rectangle               default_maximized_bounds;
  83                 private double                  opacity;
  84                 internal ApplicationContext     context;
  85                 Color                           transparency_key;
  86                 internal MenuTracker            active_tracker;
  87                 private bool                    is_loaded;
  88                 internal bool                   is_changing_visible_state;
  89                 internal bool                   has_been_visible;
  90
  91 #if NET_2_0
  92                 private MenuStrip               main_menu_strip;
  93                 private bool                    show_icon = true;
  94                 private bool                    shown_raised;  // The shown event is only raised once
  95 #endif
  96                 #endregion      // Local Variables
  97
  98                 #region Private & Internal Methods
  99                 static Form ()
 100                 {
 101                         default_icon = Locale.GetResource("mono.ico") as Icon;
 102                 }
 103
 104                 // warning: this is only hooked up when an mdi container is created.
 105                 private void ControlAddedHandler (object sender, ControlEventArgs e)
 106                 {
 107                         if (mdi_container != null) {
 108                                 mdi_container.SendToBack ();
 109                         }
 110                 }
 111
 112                 // Convenience method for fire BOTH OnClosing and OnFormClosing events
 113                 // Returns the value of Cancel, so true means the Close was cancelled,
 114                 // and you shouldn't close the form.
 115                 internal bool FireClosingEvents (CloseReason reason)
 116                 {
 117                         CancelEventArgs cea = new CancelEventArgs ();
 118                         this.OnClosing (cea);
 119
 120 #if NET_2_0
 121                         FormClosingEventArgs fcea = new FormClosingEventArgs (reason, cea.Cancel);
 122                         this.OnFormClosing (fcea);
 123                         return fcea.Cancel;
 124 #else
 125                         return cea.Cancel;
 126 #endif
 127                 }
 128
 129                 private void SelectActiveControl ()
 130                 {
 131                         if (this.IsMdiContainer) {
 132                                 mdi_container.SendFocusToActiveChild ();
 133                                 return;
 134                         }
 135
 136                         if (this.ActiveControl == null) {
 137                                 bool visible;
 138
 139                                 // This visible hack is to work around CanSelect always being false if one of the parents
 140                                 // is not visible; and we by default create Form invisible...
 141                                 visible = this.is_visible;
 142                                 this.is_visible = true;
 143
 144                                 if (SelectNextControl (this, true, true, true, true) == false) {
 145                                         Select (this);
 146                                 }
 147
 148                                 this.is_visible = visible;
 149                         } else {
 150                                 Select (ActiveControl);
 151                         }
 152                 }
 153
 154                 private new void UpdateSizeGripVisible ()
 155                 {
 156                         // Following link explains when to show size grip:
 157                         // http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=138687&SiteID=1
 158                         // if SizeGripStyle.Auto, only shown if form is shown using ShowDialog and is sizable
 159                         // if SizeGripStyle.Show, only shown if form is sizable
 160
 161                         bool show = false;
 162
 163                         switch (size_grip_style) {
 164                         case SizeGripStyle.Auto:
 165                                 show = is_modal && (form_border_style == FormBorderStyle.Sizable || form_border_style == FormBorderStyle.SizableToolWindow);
 166                                 break;
 167                         case SizeGripStyle.Hide:
 168                                 show = false;
 169                                 break;
 170                         case SizeGripStyle.Show:
 171                                 show = (form_border_style == FormBorderStyle.Sizable || form_border_style == FormBorderStyle.SizableToolWindow);
 172                                 break;
 173                         }
 174
 175                         if (!show) {
 176                                 if (size_grip != null && size_grip.Visible)
 177                                         size_grip.Visible = false;
 178                         } else {
 179                                 if (size_grip == null) {
 180                                         size_grip = new SizeGrip (this);
 181                                         size_grip.Virtual = true;
 182                                         size_grip.FillBackground = false;
 183                                 }
 184                                 size_grip.Visible = true;
 185                         }
 186                 }
 187
 188                 #endregion      // Private & Internal Methods
 189
 190                 #region Public Classes
 191 #if NET_2_0
 192                 [ComVisible (false)]
 193 #endif
 194                 public new class ControlCollection : Control.ControlCollection {
 195                         Form    form_owner;
 196
 197                         public ControlCollection(Form owner) : base(owner) {
 198                                 this.form_owner = owner;
 199                         }
 200
 201                         public override void Add(Control value) {
 202                                 if (Contains (value))
 203                                         return;
 204                                 AddToList (value);
 205                                 ((Form)value).owner=form_owner;
 206                         }
 207
 208                         public override void Remove(Control value) {
 209                                 ((Form)value).owner = null;
 210                                 base.Remove (value);
 211                         }
 212                 }
 213                 #endregion      // Public Classes
 214
 215                 #region Public Constructor & Destructor
 216                 public Form ()
 217                 {
 218                         SizeF current_scale = GetAutoScaleSize (DeviceContext, Font);
 219
 220                         autoscale = true;
 221                         autoscale_base_size = new Size ((int)current_scale.Width, (int) current_scale.Height);
 222                         allow_transparency = false;
 223                         closing = false;
 224                         is_modal = false;
 225                         dialog_result = DialogResult.None;
 226                         start_position = FormStartPosition.WindowsDefaultLocation;
 227                         form_border_style = FormBorderStyle.Sizable;
 228                         window_state = FormWindowState.Normal;
 229                         key_preview = false;
 230                         opacity = 1D;
 231                         menu = null;
 232                         icon = default_icon;
 233                         minimum_size = Size.Empty;
 234                         maximum_size = Size.Empty;
 235                         clientsize_set = Size.Empty;
 236                         control_box = true;
 237                         minimize_box = true;
 238                         maximize_box = true;
 239                         help_button = false;
 240                         show_in_taskbar = true;
 241                         is_visible = false;
 242                         is_toplevel = true;
 243                         size_grip_style = SizeGripStyle.Auto;
 244                         maximized_bounds = Rectangle.Empty;
 245                         default_maximized_bounds = Rectangle.Empty;
 246                         owned_forms = new Form.ControlCollection(this);
 247                         transparency_key = Color.Empty;
 248
 249                         // FIXME: this should disappear just as soon as the handle creation is done in the right place (here is too soon()
 250                         UpdateBounds();
 251
 252                 }
 253                 #endregion      // Public Constructor & Destructor
 254
 255                 #region Public Static Properties
 256
 257                 public static Form ActiveForm {
 258                         get {
 259                                 Control active;
 260
 261                                 active = FromHandle(XplatUI.GetActive());
 262
 263                                 if (active != null) {
 264                                         if ( !(active is Form)) {
 265                                                 Control parent;
 266
 267                                                 parent = active.Parent;
 268                                                 while (parent != null) {
 269                                                         if (parent is Form) {
 270                                                                 return (Form)parent;
 271                                                         }
 272                                                         parent = parent.Parent;
 273                                                 }
 274                                         } else {
 275                                                 return (Form)active;
 276                                         }
 277                                 }
 278                                 return null;
 279                         }
 280                 }
 281
 282                 #endregion      // Public Static Properties
 283
 284                 #region Public Instance Properties
 285                 [DefaultValue(null)]
 286                 public IButtonControl AcceptButton {
 287                         get {
 288                                 return accept_button;
 289                         }
 290
 291                         set {
 292                                 accept_button = value;
 293                                 CheckAcceptButton();
 294                         }
 295                 }
 296
 297                 [Browsable(false)]
 298                 [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
 299                 public bool AllowTransparency {
 300                         get {
 301                                 return allow_transparency;
 302                         }
 303
 304                         set {
 305                                 if (value == allow_transparency) {
 306                                         return;
 307                                 }
 308
 309                                 allow_transparency = value;
 310
 311                                 if (value) {
 312                                         if (IsHandleCreated) {
 313                                                 if ((XplatUI.SupportsTransparency() & TransparencySupport.Set) != 0) {
 314                                                         XplatUI.SetWindowTransparency(Handle, Opacity, TransparencyKey);
 315                                                 }
 316                                         } else {
 317                                                 UpdateStyles(); // Remove the WS_EX_LAYERED style
 318                                         }
 319                                 }
 320                         }
 321                 }
 322
 323 #if NET_2_0
 324                 [Browsable (false)]
 325                 [EditorBrowsable (EditorBrowsableState.Never)]
 326                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 327                 [Obsolete ("This property has been deprecated in favor of AutoScaleMode.")]
 328 #else
 329                 [DefaultValue(true)]
 330 #endif
 331                 [MWFCategory("Layout")]
 332                 public bool AutoScale {
 333                         get {
 334                                 return autoscale;
 335                         }
 336
 337                         set {
 338                                 autoscale = value;
 339                         }
 340                 }
 341
 342 #if NET_2_0
 343                 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
 344                 [EditorBrowsable(EditorBrowsableState.Never)]
 345 #else
 346                 [EditorBrowsable(EditorBrowsableState.Advanced)]
 347 #endif
 348                 [Localizable(true)]
 349                 [Browsable(false)]
 350                 public virtual Size AutoScaleBaseSize {
 351                         get {
 352                                 return autoscale_base_size;
 353                         }
 354
 355                         set {
 356                                 autoscale_base_size = value;
 357                         }
 358                 }
 359
 360                 [Localizable(true)]
 361                 public override bool AutoScroll {
 362                         get {
 363                                 return base.AutoScroll;
 364                         }
 365                         set {
 366                                 base.AutoScroll = value;
 367                         }
 368                 }
 369
 370                 public override Color BackColor {
 371                         get {
 372                                 /* we don't let parents override our
 373                                  default background color for forms.
 374                                  this fixes the default color for mdi
 375                                  children. */
 376                                 if (background_color.IsEmpty)
 377                                         return DefaultBackColor;
 378                                 else
 379                                         return background_color;
 380                         }
 381                         set {
 382                                 base.BackColor = value;
 383                         }
 384                 }
 385
 386                 [DefaultValue(null)]
 387                 public IButtonControl CancelButton {
 388                         get {
 389                                 return cancel_button;
 390                         }
 391
 392                         set {
 393                                 cancel_button = value;
 394                                 if (cancel_button != null && cancel_button.DialogResult == DialogResult.None)
 395                                         cancel_button.DialogResult = DialogResult.Cancel;
 396                         }
 397                 }
 398
 399                 // new property so we can change the DesignerSerializationVisibility
 400                 [DesignerSerializationVisibility(DesignerSerializationVisibility.Visible)]
 401                 [Localizable(true)]
 402                 public new Size ClientSize {
 403                         get { return base.ClientSize; }
 404                         set { base.ClientSize = value; }
 405                 }
 406
 407                 [DefaultValue(true)]
 408                 [MWFCategory("Window Style")]
 409                 public bool ControlBox {
 410                         get {
 411                                 return control_box;
 412                         }
 413
 414                         set {
 415                                 if (control_box != value) {
 416                                         control_box = value;
 417                                         UpdateStyles();
 418                                 }
 419                         }
 420                 }
 421
 422                 [Browsable(false)]
 423                 [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
 424                 public Rectangle DesktopBounds {
 425                         get {
 426                                 return new Rectangle(Location, Size);
 427                         }
 428
 429                         set {
 430                                 Bounds = value;
 431                         }
 432                 }
 433
 434                 [Browsable(false)]
 435                 [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
 436                 public Point DesktopLocation {
 437                         get {
 438                                 return Location;
 439                         }
 440
 441                         set {
 442                                 Location = value;
 443                         }
 444                 }
 445
 446                 [Browsable(false)]
 447                 [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
 448                 public DialogResult DialogResult {
 449                         get {
 450                                 return dialog_result;
 451                         }
 452
 453                         set {
 454                                 if (value < DialogResult.None || value > DialogResult.No)
 455                                         throw new InvalidEnumArgumentException ("value", (int) value,
 456                                                         typeof (DialogResult));
 457
 458                                 dialog_result = value;
 459                                 closing = (dialog_result != DialogResult.None && is_modal);
 460                         }
 461                 }
 462
 463                 [DefaultValue(FormBorderStyle.Sizable)]
 464                 [DispId(-504)]
 465                 [MWFCategory("Appearance")]
 466                 public FormBorderStyle FormBorderStyle {
 467                         get {
 468                                 return form_border_style;
 469                         }
 470                         set {
 471                                 form_border_style = value;
 472
 473                                 if (window_manager == null) {
 474                                         if (IsHandleCreated) {
 475                                                 XplatUI.SetBorderStyle(window.Handle, form_border_style);
 476                                         }
 477                                 } else {
 478                                         window_manager.UpdateBorderStyle (value);
 479                                 }
 480
 481                                 UpdateStyles();
 482
 483                                 if (this.Visible)
 484                                         this.Size = SizeFromClientSize (this.ClientSize);
 485                                 else
 486                                         XplatUI.InvalidateNC (this.Handle);
 487                         }
 488                 }
 489
 490                 [DefaultValue(false)]
 491                 [MWFCategory("Window Style")]
 492                 public bool HelpButton {
 493                         get {
 494                                 return help_button;
 495                         }
 496
 497                         set {
 498                                 if (help_button != value) {
 499                                         help_button = value;
 500                                         UpdateStyles();
 501                                 }
 502                         }
 503                 }
 504
 505                 [Localizable(true)]
 506                 [AmbientValue(null)]
 507                 [MWFCategory("Window Style")]
 508                 public Icon Icon {
 509                         get {
 510                                 return icon;
 511                         }
 512
 513                         set {
 514                                 if (icon != value) {
 515                                         icon = value;
 516
 517                                         if (IsHandleCreated) {
 518                                                 XplatUI.SetIcon(Handle, icon == null ? default_icon : icon);
 519                                         }
 520                                 }
 521                         }
 522                 }
 523
 524                 [Browsable(false)]
 525                 [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
 526                 public bool IsMdiChild {
 527                         get {
 528                                 return mdi_parent != null;
 529                         }
 530                 }
 531
 532                 [DefaultValue(false)]
 533                 [MWFCategory("Window Style")]
 534                 public bool IsMdiContainer {
 535                         get {
 536                                 return mdi_container != null;
 537                         }
 538
 539                         set {
 540                                 if (value && mdi_container == null) {
 541                                         mdi_container = new MdiClient ();
 542                                         Controls.Add(mdi_container);
 543                                         ControlAdded += new ControlEventHandler (ControlAddedHandler);
 544                                         mdi_container.SendToBack ();
 545                                         mdi_container.SetParentText (true);
 546                                 } else if (!value && mdi_container != null) {
 547                                         Controls.Remove(mdi_container);
 548                                         mdi_container = null;
 549                                 }
 550                         }
 551                 }
 552
 553                 [Browsable(false)]
 554                 [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
 555                 public Form ActiveMdiChild {
 556                         get {
 557                                 if (!IsMdiContainer)
 558                                         return null;
 559                                 return (Form) mdi_container.ActiveMdiChild;
 560                         }
 561                 }
 562
 563                 [Browsable(false)]
 564                 [EditorBrowsable(EditorBrowsableState.Advanced)]
 565                 public bool IsRestrictedWindow {
 566                         get {
 567                                 return false;
 568                         }
 569                 }
 570
 571                 [DefaultValue(false)]
 572                 public bool KeyPreview {
 573                         get {
 574                                 return key_preview;
 575                         }
 576
 577                         set {
 578                                 key_preview = value;
 579                         }
 580                 }
 581
 582 #if NET_2_0
 583                 [DefaultValue (null)]
 584                 [TypeConverter (typeof (ReferenceConverter))]
 585                 public MenuStrip MainMenuStrip {
 586                         get { return this.main_menu_strip; }
 587                         set {
 588                                 if (this.main_menu_strip != value) {
 589                                         this.main_menu_strip = value;
 590                                         this.main_menu_strip.RefreshMdiItems ();
 591                                 }
 592                         }
 593                 }
 594
 595                 [EditorBrowsable (EditorBrowsableState.Never)]
 596                 [Browsable (false)]
 597                 public new Padding Margin {
 598                         get { return base.Margin; }
 599                         set { base.Margin = value; }
 600                 }
 601 #endif
 602
 603                 [DefaultValue(true)]
 604                 [MWFCategory("Window Style")]
 605                 public bool MaximizeBox {
 606                         get {
 607                                 return maximize_box;
 608                         }
 609                         set {
 610                                 if (maximize_box != value) {
 611                                         maximize_box = value;
 612                                         if (IsHandleCreated) {
 613                                                 RecreateHandle();
 614                                         }
 615                                         UpdateStyles();
 616                                 }
 617                         }
 618                 }
 619
 620                 [DefaultValue("{Width=0, Height=0}")]
 621                 [Localizable(true)]
 622                 [RefreshProperties(RefreshProperties.Repaint)]
 623                 [MWFCategory("Layout")]
 624                 public
 625 #if NET_2_0
 626                 override
 627 #endif
 628                 Size MaximumSize {
 629                         get {
 630                                 return maximum_size;
 631                         }
 632
 633                         set {
 634                                 if (maximum_size != value) {
 635                                         maximum_size = value;
 636                                         OnMaximumSizeChanged(EventArgs.Empty);
 637                                         if (IsHandleCreated) {
 638                                                 XplatUI.SetWindowMinMax(Handle, maximized_bounds, minimum_size, maximum_size);
 639                                         }
 640                                 }
 641                         }
 642                 }
 643
 644                 [Browsable(false)]
 645                 [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
 646                 public Form[] MdiChildren {
 647                         get {
 648                                 if (mdi_container != null)
 649                                         return mdi_container.MdiChildren;
 650                                 else
 651                                         return new Form[0];
 652                         }
 653                 }
 654
 655                 [Browsable(false)]
 656                 [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
 657                 public Form MdiParent {
 658                         get {
 659                                 return mdi_parent;
 660                         }
 661
 662                         set {
 663                                 if (value != null && !value.IsMdiContainer)
 664                                         throw new ArgumentException ("Form that was specified to be "
 665                                                 + "the MdiParent for this form is not an MdiContainer.");
 666
 667                                 if (mdi_parent != null) {
 668                                         mdi_parent.MdiContainer.Controls.Remove (this);
 669                                 }
 670
 671                                 if (value != null) {
 672                                         mdi_parent = value;
 673                                         window_manager = new MdiWindowManager (this,
 674                                                         mdi_parent.MdiContainer);
 675                                         mdi_parent.MdiContainer.Controls.Add (this);
 676                                         mdi_parent.MdiContainer.Controls.SetChildIndex (this, 0);
 677
 678                                         RecreateHandle ();
 679
 680                                 } else if (mdi_parent != null) {
 681                                         mdi_parent = null;
 682
 683                                         // Create a new window manager
 684                                         window_manager = null;
 685                                         FormBorderStyle = form_border_style;
 686
 687                                         RecreateHandle ();
 688                                 }
 689                         }
 690                 }
 691
 692                 internal MenuTracker ActiveTracker {
 693                         get { return active_tracker; }
 694                         set {
 695                                 if (value == active_tracker)
 696                                         return;
 697
 698                                 Capture = value != null;
 699                                 active_tracker = value;
 700                         }
 701                 }
 702
 703                 internal MdiClient MdiContainer {
 704                         get { return mdi_container; }
 705                 }
 706
 707                 internal InternalWindowManager WindowManager {
 708                         get { return window_manager; }
 709                 }
 710
 711 #if NET_2_0
 712                 [Browsable (false)]
 713                 [TypeConverter (typeof (ReferenceConverter))]
 714 #endif
 715                 [DefaultValue(null)]
 716                 [MWFCategory("Window Style")]
 717                 public MainMenu Menu {
 718                         get {
 719                                 return menu;
 720                         }
 721
 722                         set {
 723                                 if (menu != value) {
 724                                         menu = value;
 725
 726                                         if (menu != null && !IsMdiChild) {
 727                                                 menu.SetForm (this);
 728
 729                                                 if (IsHandleCreated) {
 730                                                         XplatUI.SetMenu (window.Handle, menu);
 731                                                 }
 732
 733                                                 if (clientsize_set != Size.Empty) {
 734                                                         SetClientSizeCore(clientsize_set.Width, clientsize_set.Height);
 735                                                 } else {
 736                                                         UpdateBounds (bounds.X, bounds.Y, bounds.Width, bounds.Height, ClientSize.Width, ClientSize.Height -
 737                                                                 ThemeEngine.Current.CalcMenuBarSize (DeviceContext, menu, ClientSize.Width));
 738                                                 }
 739                                         } else
 740                                                 UpdateBounds ();
 741                                 }
 742                         }
 743                 }
 744
 745                 [Browsable(false)]
 746                 [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
 747                 [EditorBrowsable(EditorBrowsableState.Advanced)]
 748                 public MainMenu MergedMenu {
 749                         get {
 750                                 if (!IsMdiChild || window_manager == null)
 751                                         return null;
 752                                 return ((MdiWindowManager) window_manager).MergedMenu;
 753                         }
 754                 }
 755
 756                 // This is the menu in display and being used because of merging this can
 757                 // be different then the menu that is actually assosciated with the form
 758                 internal MainMenu ActiveMenu {
 759                         get {
 760                                 if (IsMdiChild)
 761                                         return null;
 762
 763                                 if (IsMdiContainer && mdi_container.Controls.Count > 0 &&
 764                                                 ((Form) mdi_container.Controls [0]).WindowState == FormWindowState.Maximized) {
 765                                         MdiWindowManager wm = (MdiWindowManager) ((Form) mdi_container.Controls [0]).WindowManager;
 766                                         return wm.MaximizedMenu;
 767                                 }
 768
 769                                 Form amc = ActiveMdiChild;
 770                                 if (amc == null || amc.Menu == null)
 771                                         return menu;
 772                                 return amc.MergedMenu;
 773                         }
 774                 }
 775
 776                 internal MdiWindowManager ActiveMaximizedMdiChild {
 777                         get {
 778                                 Form child = ActiveMdiChild;
 779                                 if (child == null)
 780                                         return null;
 781                                 if (child.WindowManager == null || child.window_state != FormWindowState.Maximized)
 782                                         return null;
 783                                 return (MdiWindowManager) child.WindowManager;
 784                         }
 785                 }
 786
 787                 [DefaultValue(true)]
 788                 [MWFCategory("Window Style")]
 789                 public bool MinimizeBox {
 790                         get {
 791                                 return minimize_box;
 792                         }
 793                         set {
 794                                 if (minimize_box != value) {
 795                                         minimize_box = value;
 796                                         if (IsHandleCreated) {
 797                                                 RecreateHandle();
 798                                         }
 799                                         UpdateStyles();
 800                                 }
 801                         }
 802                 }
 803
 804 #if !NET_2_0
 805                 [DefaultValue("{Width=0, Height=0}")]
 806 #endif
 807                 [Localizable(true)]
 808                 [RefreshProperties(RefreshProperties.Repaint)]
 809                 [MWFCategory("Layout")]
 810                 public
 811 #if NET_2_0
 812                 override
 813 #endif
 814                 Size MinimumSize {
 815                         get {
 816                                 return minimum_size;
 817                         }
 818
 819                         set {
 820                                 if (minimum_size != value) {
 821                                         minimum_size = value;
 822
 823                                         if ((Size.Width < value.Width) || (Size.Height < value.Height)) {
 824                                                 Size = new Size(Math.Max(Size.Width, value.Width), Math.Max(Size.Height, value.Height));
 825                                         }
 826
 827
 828                                         OnMinimumSizeChanged(EventArgs.Empty);
 829                                         if (IsHandleCreated) {
 830                                                 XplatUI.SetWindowMinMax(Handle, maximized_bounds, minimum_size, maximum_size);
 831                                         }
 832                                 }
 833                         }
 834                 }
 835
 836                 [Browsable(false)]
 837                 [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
 838                 public bool Modal  {
 839                         get {
 840                                 return is_modal;
 841                         }
 842                 }
 843
 844                 [DefaultValue(1D)]
 845                 [TypeConverter(typeof(OpacityConverter))]
 846                 [MWFCategory("Window Style")]
 847                 public double Opacity {
 848                         get {
 849                                 if (IsHandleCreated) {
 850                                         if ((XplatUI.SupportsTransparency () & TransparencySupport.Get) != 0)
 851                                                 return XplatUI.GetWindowTransparency (Handle);
 852                                 }
 853
 854                                 return opacity;
 855                         }
 856
 857                         set {
 858                                 opacity = value;
 859
 860                                 AllowTransparency = true;
 861
 862                                 if (IsHandleCreated) {
 863                                         UpdateStyles();
 864                                         if ((XplatUI.SupportsTransparency () & TransparencySupport.Set) != 0)
 865                                                 XplatUI.SetWindowTransparency(Handle, opacity, TransparencyKey);
 866                                 }
 867                         }
 868                 }
 869
 870
 871                 [Browsable(false)]
 872                 [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
 873                 public Form[] OwnedForms {
 874                         get {
 875                                 Form[] form_list;
 876
 877                                 form_list = new Form[owned_forms.Count];
 878
 879                                 for (int i=0; i<owned_forms.Count; i++) {
 880                                         form_list[i] = (Form)owned_forms[i];
 881                                 }
 882
 883                                 return form_list;
 884                         }
 885                 }
 886
 887                 [Browsable(false)]
 888                 [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
 889                 public Form Owner {
 890                         get {
 891                                 return owner;
 892                         }
 893
 894                         set {
 895                                 if (owner != value) {
 896                                         if (owner != null) {
 897                                                 owner.RemoveOwnedForm(this);
 898                                         }
 899                                         owner = value;
 900                                         if (owner != null)
 901                                                 owner.AddOwnedForm(this);
 902                                         if (IsHandleCreated) {
 903                                                 if (owner != null && owner.IsHandleCreated) {
 904                                                         XplatUI.SetTopmost(this.window.Handle, owner.window.Handle, true);
 905                                                 } else {
 906                                                         XplatUI.SetTopmost(this.window.Handle, IntPtr.Zero, false);
 907                                                 }
 908                                         }
 909                                 }
 910                         }
 911                 }
 912
 913 #if NET_2_0
 914                 [DefaultValue (true)]
 915                 public bool ShowIcon {
 916                         get { return this.show_icon; }
 917                         set {
 918                                 if (this.show_icon != value ) {
 919                                         this.show_icon = value;
 920                                         UpdateStyles ();
 921
 922                                         XplatUI.SetIcon (this.Handle, value == true ? this.Icon : null);
 923                                         XplatUI.InvalidateNC (this.Handle);
 924                                 }
 925                         }
 926                 }
 927 #endif
 928
 929                 [DefaultValue(true)]
 930                 [MWFCategory("Window Style")]
 931                 public bool ShowInTaskbar {
 932                         get {
 933                                 return show_in_taskbar;
 934                         }
 935                         set {
 936                                 if (show_in_taskbar != value) {
 937                                         show_in_taskbar = value;
 938                                         if (IsHandleCreated) {
 939                                                 RecreateHandle();
 940                                         }
 941                                         UpdateStyles();
 942                                 }
 943                         }
 944                 }
 945
 946                 // new property so we can set the DesignerSerializationVisibility
 947                 [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
 948                 [Localizable(false)]
 949                 public new Size Size {
 950                         get { return base.Size; }
 951                         set { base.Size = value; }
 952                 }
 953
 954                 [DefaultValue(SizeGripStyle.Auto)]
 955                 [MWFCategory("Window Style")]
 956                 public SizeGripStyle SizeGripStyle {
 957                         get {
 958                                 return size_grip_style;
 959                         }
 960
 961                         set {
 962                                 size_grip_style = value;
 963                                 UpdateSizeGripVisible ();
 964                         }
 965                 }
 966
 967                 [DefaultValue(FormStartPosition.WindowsDefaultLocation)]
 968                 [Localizable(true)]
 969                 [MWFCategory("Layout")]
 970                 public FormStartPosition StartPosition {
 971                         get {
 972                                 return start_position;
 973                         }
 974
 975                         set {
 976                                 if (start_position == FormStartPosition.WindowsDefaultLocation) {               // Only do this if it's not set yet
 977                                         start_position = value;
 978                                         if (IsHandleCreated) {
 979                                                 switch(start_position) {
 980                                                         case FormStartPosition.CenterParent: {
 981                                                                 CenterToParent();
 982                                                                 break;
 983                                                         }
 984
 985                                                         case FormStartPosition.CenterScreen: {
 986                                                                 CenterToScreen();
 987                                                                 break;
 988                                                         }
 989
 990                                                         case FormStartPosition.Manual: {
 991                                                                 Left = CreateParams.X;
 992                                                                 Top = CreateParams.Y;
 993                                                                 break;
 994                                                         }
 995
 996                                                         default: {
 997                                                                 break;
 998                                                         }
 999                                                 }
1000                                         }
1001                                 }
1002                         }
1003                 }
1004
1005                 // new property so we can set EditorBrowsable to never
1006                 [Browsable(false)]
1007                 [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
1008                 [EditorBrowsable(EditorBrowsableState.Never)]
1009                 public new int TabIndex {
1010                         get { return base.TabIndex; }
1011                         set { base.TabIndex = value; }
1012                 }
1013
1014 #if NET_2_0
1015                 [Browsable(false)]
1016                 [DefaultValue (true)]
1017                 [DispIdAttribute (-516)]
1018                 [EditorBrowsable(EditorBrowsableState.Never)]
1019                 public new bool TabStop {
1020                         get { return base.TabStop; }
1021                         set { base.TabStop = value; }
1022                 }
1023 #endif
1024
1025                 [Browsable(false)]
1026                 [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
1027                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1028                 public bool TopLevel {
1029                         get {
1030                                 return GetTopLevel();
1031                         }
1032
1033                         set {
1034                                 if (!value && IsMdiContainer)
1035                                         throw new ArgumentException ("MDI Container forms must be top level.");
1036                                 SetTopLevel(value);
1037                         }
1038                 }
1039
1040                 [DefaultValue(false)]
1041                 [MWFCategory("Window Style")]
1042                 public bool TopMost {
1043                         get {
1044                                 return topmost;
1045                         }
1046
1047                         set {
1048                                 if (topmost != value) {
1049                                         topmost = value;
1050                                         if (IsHandleCreated)
1051                                                 XplatUI.SetTopmost(window.Handle, owner != null ? owner.window.Handle : IntPtr.Zero, value);
1052                                 }
1053                         }
1054                 }
1055
1056                 [MWFCategory("Window Style")]
1057                 public Color TransparencyKey {
1058                         get {
1059                                 return transparency_key;
1060                         }
1061
1062                         set {
1063                                 transparency_key = value;
1064
1065                                 AllowTransparency = true;
1066                                 UpdateStyles();
1067                                 if ((XplatUI.SupportsTransparency () & TransparencySupport.Set) != 0)
1068                                         XplatUI.SetWindowTransparency(Handle, Opacity, transparency_key);
1069                         }
1070                 }
1071
1072                 [DefaultValue(FormWindowState.Normal)]
1073                 [MWFCategory("Layout")]
1074                 public FormWindowState WindowState {
1075                         get {
1076                                 if (IsHandleCreated) {
1077
1078                                         if (window_manager != null)
1079                                                 return window_manager.GetWindowState ();
1080
1081                                         FormWindowState new_state = XplatUI.GetWindowState(Handle);
1082                                         if (new_state != (FormWindowState)(-1))
1083                                                 window_state = new_state;
1084                                 }
1085
1086                                 return window_state;
1087                         }
1088
1089                         set {
1090                                 FormWindowState old_state = window_state;
1091                                 window_state = value;
1092                                 if (IsHandleCreated) {
1093
1094                                         if (window_manager != null) {
1095                                                 window_manager.SetWindowState (old_state, value);
1096                                                 return;
1097                                         }
1098
1099                                         XplatUI.SetWindowState(Handle, value);
1100                                 }
1101                         }
1102                 }
1103
1104                 #endregion      // Public Instance Properties
1105
1106                 #region Protected Instance Properties
1107                 protected override CreateParams CreateParams {
1108                         get {
1109                                 CreateParams cp = new CreateParams ();
1110
1111                                 cp.Caption = Text;
1112                                 cp.ClassName = XplatUI.DefaultClassName;
1113                                 cp.ClassStyle = 0;
1114                                 cp.Style = 0;
1115                                 cp.ExStyle = 0;
1116                                 cp.Param = 0;
1117                                 cp.Parent = IntPtr.Zero;
1118                                 cp.menu = ActiveMenu;
1119
1120                                 if (start_position == FormStartPosition.WindowsDefaultLocation && !IsMdiChild) {
1121                                         cp.X = unchecked((int)0x80000000);
1122                                         cp.Y = unchecked((int)0x80000000);
1123                                 } else {
1124                                         cp.X = Left;
1125                                         cp.Y = Top;
1126                                 }
1127                                 cp.Width = Width;
1128                                 cp.Height = Height;
1129
1130                                 cp.Style = (int)(WindowStyles.WS_CLIPCHILDREN | WindowStyles.WS_CLIPSIBLINGS);
1131
1132                                 if (IsMdiChild) {
1133                                         cp.Style |= (int)(WindowStyles.WS_CHILD | WindowStyles.WS_CAPTION);
1134                                         if (Parent != null) {
1135                                                 cp.Parent = Parent.Handle;
1136                                         }
1137
1138                                         cp.ExStyle |= (int) (WindowExStyles.WS_EX_WINDOWEDGE | WindowExStyles.WS_EX_MDICHILD);
1139
1140                                         switch (FormBorderStyle) {
1141                                         case FormBorderStyle.None:
1142                                                 break;
1143                                         case FormBorderStyle.FixedToolWindow:
1144                                         case FormBorderStyle.SizableToolWindow:
1145                                                 cp.ExStyle |= (int) WindowExStyles.WS_EX_TOOLWINDOW;
1146                                                 goto default;
1147                                         default:
1148                                                 cp.Style |= (int) WindowStyles.WS_OVERLAPPEDWINDOW;
1149                                                 break;
1150                                         }
1151
1152                                 } else {
1153                                         switch (FormBorderStyle) {
1154                                                 case FormBorderStyle.Fixed3D: {
1155                                                         cp.Style |= (int)(WindowStyles.WS_CAPTION | WindowStyles.WS_BORDER);
1156                                                         cp.ExStyle |= (int)WindowExStyles.WS_EX_CLIENTEDGE;
1157                                                         break;
1158                                                 }
1159
1160                                                 case FormBorderStyle.FixedDialog: {
1161                                                         cp.Style |= (int)(WindowStyles.WS_CAPTION | WindowStyles.WS_BORDER);
1162                                                         cp.ExStyle |= (int)(WindowExStyles.WS_EX_DLGMODALFRAME | WindowExStyles.WS_EX_CONTROLPARENT);
1163                                                         break;
1164                                                 }
1165
1166                                                 case FormBorderStyle.FixedSingle: {
1167                                                         cp.Style |= (int)(WindowStyles.WS_CAPTION | WindowStyles.WS_BORDER);
1168                                                         break;
1169                                                 }
1170
1171                                                 case FormBorderStyle.FixedToolWindow: {
1172                                                         cp.Style |= (int)(WindowStyles.WS_CAPTION | WindowStyles.WS_BORDER);
1173                                                         cp.ExStyle |= (int)(WindowExStyles.WS_EX_TOOLWINDOW);
1174                                                         break;
1175                                                 }
1176
1177                                                 case FormBorderStyle.Sizable: {
1178                                                         cp.Style |= (int)(WindowStyles.WS_BORDER | WindowStyles.WS_THICKFRAME | WindowStyles.WS_CAPTION);
1179                                                         break;
1180                                                 }
1181
1182                                                 case FormBorderStyle.SizableToolWindow: {
1183                                                         cp.Style |= (int)(WindowStyles.WS_BORDER | WindowStyles.WS_THICKFRAME | WindowStyles.WS_CAPTION);
1184                                                         cp.ExStyle |= (int)(WindowExStyles.WS_EX_TOOLWINDOW);
1185                                                         break;
1186                                                 }
1187
1188                                                 case FormBorderStyle.None: {
1189                                                         break;
1190                                                 }
1191                                         }
1192                                 }
1193
1194                                 switch(window_state) {
1195                                         case FormWindowState.Maximized: {
1196                                                 cp.Style |= (int)WindowStyles.WS_MAXIMIZE;
1197                                                 break;
1198                                         }
1199
1200                                         case FormWindowState.Minimized: {
1201                                                 cp.Style |= (int)WindowStyles.WS_MINIMIZE;
1202                                                 break;
1203                                         }
1204                                 }
1205
1206                                 if (TopMost) {
1207                                         cp.ExStyle |= (int) WindowExStyles.WS_EX_TOPMOST;
1208                                 }
1209
1210                                 if (ShowInTaskbar) {
1211                                         cp.ExStyle |= (int)WindowExStyles.WS_EX_APPWINDOW;
1212                                 }
1213
1214                                 if (MaximizeBox) {
1215                                         cp.Style |= (int)WindowStyles.WS_MAXIMIZEBOX;
1216                                 }
1217
1218                                 if (MinimizeBox) {
1219                                         cp.Style |= (int)WindowStyles.WS_MINIMIZEBOX;
1220                                 }
1221
1222                                 if (ControlBox) {
1223                                         cp.Style |= (int)WindowStyles.WS_SYSMENU;
1224                                 }
1225
1226 #if NET_2_0
1227                                 if (!this.show_icon) {
1228                                         cp.ExStyle |= (int)WindowExStyles.WS_EX_DLGMODALFRAME;
1229                                 }
1230 #endif
1231
1232                                 if (HelpButton && !MaximizeBox && !MinimizeBox) {
1233                                         cp.ExStyle |= (int)WindowExStyles.WS_EX_CONTEXTHELP;
1234                                 }
1235
1236                                 if (Visible)
1237                                         cp.Style |= (int)WindowStyles.WS_VISIBLE;
1238
1239                                 if (opacity < 1.0 || TransparencyKey != Color.Empty) {
1240                                         cp.ExStyle |= (int)WindowExStyles.WS_EX_LAYERED;
1241                                 }
1242
1243                                 if (!is_enabled && context == null) {
1244                                         cp.Style |= (int)(WindowStyles.WS_DISABLED);
1245                                 }
1246
1247                                 return cp;
1248                         }
1249                 }
1250
1251                 protected override ImeMode DefaultImeMode {
1252                         get {
1253                                 return ImeMode.NoControl;
1254                         }
1255                 }
1256
1257                 protected override Size DefaultSize {
1258                         get {
1259                                 return new Size (300, 300);
1260                         }
1261                 }
1262
1263                 protected Rectangle MaximizedBounds {
1264                         get {
1265                                 if (maximized_bounds != Rectangle.Empty) {
1266                                         return maximized_bounds;
1267                                 }
1268                                 return default_maximized_bounds;
1269                         }
1270
1271                         set {
1272                                 maximized_bounds = value;
1273                                 OnMaximizedBoundsChanged(EventArgs.Empty);
1274                                 if (IsHandleCreated) {
1275                                         XplatUI.SetWindowMinMax(Handle, maximized_bounds, minimum_size, maximum_size);
1276                                 }
1277                         }
1278                 }
1279                 #endregion      // Protected Instance Properties
1280
1281                 #region Public Static Methods
1282 #if NET_2_0
1283                 [EditorBrowsable(EditorBrowsableState.Never)]
1284                 [Obsolete ("This method has been deprecated.  Use AutoScaleDimensions instead")]
1285 #else
1286                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1287 #endif
1288                 public static SizeF GetAutoScaleSize (Font font)
1289                 {
1290                         return XplatUI.GetAutoScaleSize(font);
1291                 }
1292
1293                 #endregion      // Public Static Methods
1294
1295                 #region Public Instance Methods
1296                 internal SizeF GetAutoScaleSize (Graphics g, Font font)
1297                 {
1298                         //
1299                         // The following constants come from the dotnet mailing list
1300                         // discussion: http://discuss.develop.com/archives/wa.exe?A2=ind0203A&L=DOTNET&P=R3655
1301                         //
1302                         // The magic number is "Its almost the length
1303                         // of the string with a smattering added in
1304                         // for compat with earlier code".
1305                         //
1306
1307                         string magic_string = "The quick brown fox jumped over the lazy dog.";
1308                         double magic_number = 44.549996948242189;
1309                         float width = (float) (g.MeasureString (magic_string, font).Width / magic_number);
1310
1311                         return new SizeF (width, font.Height);
1312                 }
1313
1314                 public void Activate ()
1315                 {
1316                         Form    active;
1317
1318                         // The docs say activate only activates if our app is already active
1319                         if (IsHandleCreated) {
1320                                 if (IsMdiChild) {
1321                                         MdiParent.ActivateMdiChild (this);
1322                                 } else if (IsMdiContainer) {
1323                                         mdi_container.SendFocusToActiveChild ();
1324                                 } else {
1325                                         active = ActiveForm;
1326                                         if ((active != null) && (this != active)) {
1327                                                 XplatUI.Activate(window.Handle);
1328                                         }
1329                                 }
1330                         }
1331                 }
1332
1333                 public void AddOwnedForm(Form ownedForm) {
1334                         if (!owned_forms.Contains(ownedForm)) {
1335                                 owned_forms.Add(ownedForm);
1336                         }
1337                         ownedForm.Owner = this;
1338                 }
1339
1340                 public void Close () {
1341                         if (IsDisposed)
1342                                 return;
1343
1344                         if (!is_visible)
1345                                 return;
1346
1347                         XplatUI.SendMessage(this.Handle, Msg.WM_CLOSE, IntPtr.Zero, IntPtr.Zero);
1348                 }
1349
1350                 public void LayoutMdi(MdiLayout value) {
1351                         if (mdi_container != null) {
1352                                 mdi_container.LayoutMdi(value);
1353                         }
1354                 }
1355
1356                 public void RemoveOwnedForm(Form ownedForm) {
1357                         owned_forms.Remove(ownedForm);
1358                 }
1359
1360                 public void SetDesktopBounds(int x, int y, int width, int height) {
1361                         DesktopBounds = new Rectangle(x, y, width, height);
1362                 }
1363
1364                 public void SetDesktopLocation(int x, int y) {
1365                         DesktopLocation = new Point(x, y);
1366                 }
1367
1368 #if NET_2_0
1369                 public void Show (IWin32Window owner)
1370                 {
1371                         if (owner == null)
1372                                 this.Owner = null;
1373                         else
1374                                 this.Owner = Control.FromHandle (owner.Handle).TopLevelControl as Form;
1375
1376                         if (owner == this)
1377                                 throw new InvalidOperationException ("The 'owner' cannot be the form being shown.");
1378
1379                         base.Show ();
1380                 }
1381 #endif
1382
1383                 public DialogResult ShowDialog() {
1384                         return ShowDialog(this.owner);
1385                 }
1386
1387                 public DialogResult ShowDialog(IWin32Window ownerWin32) {
1388                         Rectangle       area;
1389                         bool            confined;
1390                         IntPtr          capture_window;
1391
1392                         owner = null;
1393
1394                         if (ownerWin32 != null) {
1395                                 Control c = Control.FromHandle (ownerWin32.Handle);
1396                                 if (c != null)
1397                                         owner = c.TopLevelControl as Form;
1398                         }
1399
1400                         if (owner == this) {
1401                                 throw new ArgumentException ("Forms cannot own themselves or their owners.", "owner");
1402                         }
1403
1404                         if (is_modal) {
1405                                 throw new InvalidOperationException ("The form is already displayed as a modal dialog.");
1406                         }
1407
1408                         if (Visible) {
1409                                 throw new InvalidOperationException ("Forms that are already "
1410                                         + " visible cannot be displayed as a modal dialog. Set the"
1411                                         + " form's visible property to false before calling"
1412                                         + " ShowDialog.");
1413                         }
1414
1415                         if (!Enabled) {
1416                                 throw new InvalidOperationException ("Forms that are not enabled"
1417                                         + " cannot be displayed as a modal dialog. Set the form's"
1418                                         + " enabled property to true before calling ShowDialog.");
1419                         }
1420
1421                         if (TopLevelControl != this) {
1422                                 throw new InvalidOperationException ("Forms that are not top level"
1423                                         + " forms cannot be displayed as a modal dialog. Remove the"
1424                                         + " form from any parent form before calling ShowDialog.");
1425                         }
1426
1427                         #if broken
1428                         // Can't do this, will screw us in the modal loop
1429                         form_parent_window.Parent = this.owner;
1430                         #endif
1431
1432                         // Release any captures
1433                         XplatUI.GrabInfo(out capture_window, out confined, out area);
1434                         if (capture_window != IntPtr.Zero) {
1435                                 XplatUI.UngrabWindow(capture_window);
1436                         }
1437
1438 #if not
1439                         // Commented out; we instead let the Visible=true inside the runloop create the control
1440                         // otherwise setting DialogResult inside any of the events that are triggered by the
1441                         // create will not actually cause the form to not be displayed.
1442                         // Leaving this comment here in case there was an actual purpose to creating the control
1443                         // in here.
1444                         if (!IsHandleCreated) {
1445                                 CreateControl();
1446                         }
1447 #endif
1448
1449                         Application.RunLoop(true, new ApplicationContext(this));
1450
1451                         if (owner != null) {
1452                                 // Cannot use Activate(), it has a check for the current active window...
1453                                 XplatUI.Activate(owner.window.Handle);
1454                         }
1455
1456                         if (DialogResult != DialogResult.None) {
1457                                 return DialogResult;
1458                         }
1459                         DialogResult = DialogResult.Cancel;
1460                         return DialogResult.Cancel;
1461                 }
1462
1463                 public override string ToString() {
1464                         return GetType().FullName.ToString() + ", Text: " + Text;
1465                 }
1466                 #endregion      // Public Instance Methods
1467
1468                 #region Protected Instance Methods
1469                 protected void ActivateMdiChild(Form form) {
1470                         if (!IsMdiContainer)
1471                                 return;
1472                         mdi_container.ActivateChild (form);
1473                         OnMdiChildActivate(EventArgs.Empty);
1474                 }
1475
1476                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1477                 protected override void AdjustFormScrollbars(bool displayScrollbars) {
1478                         base.AdjustFormScrollbars (displayScrollbars);
1479                 }
1480
1481 #if NET_2_0
1482                 [EditorBrowsable(EditorBrowsableState.Never)]
1483                 [Obsolete ("This method has been deprecated")] // XXX what to use instead?
1484 #else
1485                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1486 #endif
1487                 protected void ApplyAutoScaling()
1488                 {
1489                         SizeF current_size_f = GetAutoScaleSize (DeviceContext, Font);
1490                         Size current_size = new Size ((int) current_size_f.Width, (int) current_size_f.Height);
1491                         float   dx;
1492                         float   dy;
1493
1494                         if (current_size == autoscale_base_size)
1495                                 return;
1496
1497                         if (Environment.GetEnvironmentVariable ("MONO_MWF_SCALING") == "disable"){
1498                                 return;
1499                         }
1500
1501                         //
1502                         // I tried applying the Fudge height factor from:
1503                         // http://blogs.msdn.com/mharsh/archive/2004/01/25/62621.aspx
1504                         // but it makes things larger without looking better.
1505                         //
1506                         if (current_size_f.Width != AutoScaleBaseSize.Width) {
1507                                 dx = current_size_f.Width / AutoScaleBaseSize.Width + 0.08f;
1508                         } else {
1509                                 dx = 1;
1510                         }
1511
1512                         if (current_size_f.Height != AutoScaleBaseSize.Height) {
1513                                 dy = current_size_f.Height / AutoScaleBaseSize.Height + 0.08f;
1514                         } else {
1515                                 dy = 1;
1516                         }
1517
1518                         Scale (dx, dy);
1519
1520                         AutoScaleBaseSize = current_size;
1521                 }
1522
1523                 protected void CenterToParent() {
1524                         Control ctl;
1525                         int     w;
1526                         int     h;
1527
1528                         if (Width > 0) {
1529                                 w = Width;
1530                         } else {
1531                                 w = DefaultSize.Width;
1532                         }
1533
1534                         if (Height > 0) {
1535                                 h = Height;
1536                         } else {
1537                                 h = DefaultSize.Height;
1538                         }
1539
1540                         ctl = null;
1541                         if (Parent != null) {
1542                                 ctl = Parent;
1543                         } else if (owner != null) {
1544                                 ctl = owner;
1545                         }
1546
1547                         if (owner != null) {
1548                                 this.Location = new Point(ctl.Left + ctl.Width / 2 - w /2, ctl.Top + ctl.Height / 2 - h / 2);
1549                         }
1550                 }
1551
1552                 protected void CenterToScreen() {
1553                         Size    DisplaySize;
1554                         int     w;
1555                         int     h;
1556
1557                         if (Width > 0) {
1558                                 w = Width;
1559                         } else {
1560                                 w = DefaultSize.Width;
1561                         }
1562
1563                         if (Height > 0) {
1564                                 h = Height;
1565                         } else {
1566                                 h = DefaultSize.Height;
1567                         }
1568
1569                         XplatUI.GetDisplaySize(out DisplaySize);
1570                         this.Location = new Point(DisplaySize.Width / 2 - w / 2, DisplaySize.Height / 2 - h / 2);
1571                 }
1572
1573                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1574                 protected override Control.ControlCollection CreateControlsInstance() {
1575                         return base.CreateControlsInstance ();
1576                 }
1577
1578                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1579                 protected override void CreateHandle() {
1580                         base.CreateHandle ();
1581
1582                         Application.AddForm (this);
1583
1584                         UpdateBounds();
1585
1586                         if ((XplatUI.SupportsTransparency() & TransparencySupport.Set) != 0) {
1587                                 if (allow_transparency) {
1588                                         XplatUI.SetWindowTransparency(Handle, Opacity, TransparencyKey);
1589                                 }
1590                         }
1591
1592                         XplatUI.SetWindowMinMax(window.Handle, maximized_bounds, minimum_size, maximum_size);
1593                         if ((FormBorderStyle != FormBorderStyle.FixedDialog) && (icon != null)) {
1594                                 XplatUI.SetIcon(window.Handle, icon);
1595                         }
1596
1597                         if ((owner != null) && (owner.IsHandleCreated)) {
1598                                 XplatUI.SetTopmost(window.Handle, owner.window.Handle, true);
1599                         }
1600
1601                         for (int i = 0; i < owned_forms.Count; i++) {
1602                                 if (owned_forms[i].IsHandleCreated)
1603                                         XplatUI.SetTopmost(owned_forms[i].window.Handle, window.Handle, true);
1604                         }
1605
1606                         if (window_manager != null) {
1607                                 if (window_state != FormWindowState.Normal) {
1608                                         window_manager.SetWindowState (FormWindowState.Normal, window_state);
1609                                 }
1610                                 XplatUI.RequestNCRecalc (window.Handle);
1611                         }
1612
1613                 }
1614
1615                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1616                 protected override void DefWndProc(ref Message m) {
1617                         base.DefWndProc (ref m);
1618                 }
1619
1620                 protected override void Dispose(bool disposing)
1621                 {
1622                         for (int i = 0; i < owned_forms.Count; i++)
1623                                 ((Form)owned_forms[i]).Owner = null;
1624
1625                         owned_forms.Clear ();
1626
1627                         base.Dispose (disposing);
1628
1629                         Application.RemoveForm (this);
1630                 }
1631
1632                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1633                 protected virtual void OnActivated(EventArgs e)
1634                 {
1635                         EventHandler eh = (EventHandler)(Events [ActivatedEvent]);
1636                         if (eh != null)
1637                                 eh (this, e);
1638                 }
1639
1640                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1641                 protected virtual void OnClosed(EventArgs e) {
1642                         EventHandler eh = (EventHandler)(Events [ClosedEvent]);
1643                         if (eh != null)
1644                                 eh (this, e);
1645                 }
1646
1647                 // Consider calling FireClosingEvents instead of calling this directly.
1648                 [EditorBrowsable (EditorBrowsableState.Advanced)]
1649                 protected virtual void OnClosing(System.ComponentModel.CancelEventArgs e) {
1650                         CancelEventHandler eh = (CancelEventHandler)(Events [ClosingEvent]);
1651                         if (eh != null)
1652                                 eh (this, e);
1653                 }
1654
1655                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1656                 protected override void OnCreateControl() {
1657                         base.OnCreateControl ();
1658
1659                         if (menu != null) {
1660                                 XplatUI.SetMenu(window.Handle, menu);
1661                         }
1662
1663                         OnLoad(EventArgs.Empty);
1664
1665                         // Send initial location
1666                         OnLocationChanged(EventArgs.Empty);
1667
1668                         if (IsMdiContainer) {
1669                                 mdi_container.LayoutMdi (MdiLayout.Cascade);
1670                         }
1671                 }
1672
1673                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1674                 protected virtual void OnDeactivate(EventArgs e) {
1675                         EventHandler eh = (EventHandler)(Events [DeactivateEvent]);
1676                         if (eh != null)
1677                                 eh (this, e);
1678                 }
1679
1680                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1681                 protected override void OnFontChanged(EventArgs e) {
1682                         base.OnFontChanged (e);
1683                 }
1684
1685                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1686                 protected override void OnHandleCreated(EventArgs e) {
1687                         XplatUI.SetBorderStyle(window.Handle, form_border_style);
1688                         base.OnHandleCreated (e);
1689                 }
1690
1691                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1692                 protected override void OnHandleDestroyed(EventArgs e) {
1693                         base.OnHandleDestroyed (e);
1694                 }
1695
1696                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1697                 protected virtual void OnInputLanguageChanged(InputLanguageChangedEventArgs e) {
1698                         InputLanguageChangedEventHandler eh = (InputLanguageChangedEventHandler)(Events [InputLanguageChangedEvent]);
1699                         if (eh != null)
1700                                 eh (this, e);
1701                 }
1702
1703                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1704                 protected virtual void OnInputLanguageChanging(InputLanguageChangingEventArgs e) {
1705                         InputLanguageChangingEventHandler eh = (InputLanguageChangingEventHandler)(Events [InputLanguageChangingEvent]);
1706                         if (eh != null)
1707                                 eh (this, e);
1708                 }
1709
1710                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1711                 protected virtual void OnLoad(EventArgs e) {
1712                         if (AutoScale){
1713                                 ApplyAutoScaling ();
1714                                 AutoScale = false;
1715                         }
1716
1717                         EventHandler eh = (EventHandler)(Events [LoadEvent]);
1718                         if (eh != null)
1719                                 eh (this, e);
1720
1721                         if (!IsMdiChild) {
1722                                 switch (StartPosition) {
1723                                         case FormStartPosition.CenterScreen:
1724                                                 this.CenterToScreen();
1725                                                 break;
1726                                         case FormStartPosition.CenterParent:
1727                                                 this.CenterToParent ();
1728                                                 break;
1729                                         case FormStartPosition.Manual:
1730                                                 Left = CreateParams.X;
1731                                                 Top = CreateParams.Y;
1732                                                 break;
1733                                 }
1734                         }
1735                         is_loaded = true;
1736                 }
1737
1738                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1739                 protected virtual void OnMaximizedBoundsChanged(EventArgs e) {
1740                         EventHandler eh = (EventHandler)(Events [MaximizedBoundsChangedEvent]);
1741                         if (eh != null)
1742                                 eh (this, e);
1743                 }
1744
1745                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1746                 protected virtual void OnMaximumSizeChanged(EventArgs e) {
1747                         EventHandler eh = (EventHandler)(Events [MaximumSizeChangedEvent]);
1748                         if (eh != null)
1749                                 eh (this, e);
1750                 }
1751
1752                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1753                 protected virtual void OnMdiChildActivate(EventArgs e) {
1754                         EventHandler eh = (EventHandler)(Events [MdiChildActivateEvent]);
1755                         if (eh != null)
1756                                 eh (this, e);
1757                 }
1758
1759                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1760                 protected virtual void OnMenuComplete(EventArgs e) {
1761                         EventHandler eh = (EventHandler)(Events [MenuCompleteEvent]);
1762                         if (eh != null)
1763                                 eh (this, e);
1764                 }
1765
1766                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1767                 protected virtual void OnMenuStart(EventArgs e) {
1768                         EventHandler eh = (EventHandler)(Events [MenuStartEvent]);
1769                         if (eh != null)
1770                                 eh (this, e);
1771                 }
1772
1773                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1774                 protected virtual void OnMinimumSizeChanged(EventArgs e) {
1775                         EventHandler eh = (EventHandler)(Events [MinimumSizeChangedEvent]);
1776                         if (eh != null)
1777                                 eh (this, e);
1778                 }
1779
1780                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1781                 protected override void OnPaint (PaintEventArgs pevent) {
1782                         base.OnPaint (pevent);
1783
1784                         if (size_grip != null) {
1785                                 size_grip.HandlePaint (this, pevent);
1786                         }
1787                 }
1788
1789                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1790                 protected override void OnResize(EventArgs e) {
1791                         base.OnResize(e);
1792
1793                 }
1794
1795                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1796                 protected override void OnStyleChanged(EventArgs e) {
1797                         base.OnStyleChanged (e);
1798                 }
1799
1800                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1801                 protected override void OnTextChanged(EventArgs e) {
1802                         base.OnTextChanged (e);
1803
1804                         if (mdi_container != null)
1805                                 mdi_container.SetParentText(true);
1806                 }
1807
1808                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1809                 protected override void OnVisibleChanged(EventArgs e) {
1810                         base.OnVisibleChanged (e);
1811
1812                         if (Visible) {
1813                                 if (window_manager != null)
1814                                         window_manager.SetWindowState (WindowState, WindowState);
1815                         }
1816                 }
1817
1818                 protected override bool ProcessCmdKey(ref Message msg, Keys keyData) {
1819                         if (base.ProcessCmdKey (ref msg, keyData)) {
1820                                 return true;
1821                         }
1822
1823                         // Give our menu a shot
1824                         if (ActiveMenu != null) {
1825                                 return ActiveMenu.ProcessCmdKey(ref msg, keyData);
1826                         }
1827
1828                         if (IsMdiChild) {
1829                                 switch (keyData)
1830                                 {
1831                                 case Keys.Control | Keys.F4:
1832                                 case Keys.Control | Keys.Shift | Keys.F4:
1833                                         Close ();
1834                                         return true;
1835                                 case Keys.Control | Keys.Tab:
1836                                 case Keys.Control | Keys.F6:
1837                                         MdiParent.MdiContainer.ActivateNextChild ();
1838                                         return true;
1839                                 case Keys.Control | Keys.Shift | Keys.Tab:
1840                                 case Keys.Control | Keys.Shift | Keys.F6:
1841                                         MdiParent.MdiContainer.ActivatePreviousChild ();
1842                                         return true;
1843                                 }
1844                         }
1845
1846                         return false;
1847                 }
1848
1849                 // LAMESPEC - Not documented that Form overrides ProcessDialogChar; class-status showed
1850                 [EditorBrowsable (EditorBrowsableState.Advanced)]
1851                 protected override bool ProcessDialogChar(char charCode) {
1852                         return base.ProcessDialogChar (charCode);
1853                 }
1854
1855                 protected override bool ProcessDialogKey(Keys keyData) {
1856                         if ((keyData & Keys.Modifiers) == 0) {
1857                                 if (keyData == Keys.Enter) {
1858                                         IntPtr window = XplatUI.GetFocus ();
1859                                         Control c = Control.FromHandle (window);
1860                                         if (c is Button && c.FindForm () == this) {
1861                                                 ((Button)c).PerformClick ();
1862                                                 return true;
1863                                         }
1864                                         else if (accept_button != null) {
1865                                                 accept_button.PerformClick();
1866                                                 return true;
1867                                         }
1868                                 } else if (keyData == Keys.Escape && cancel_button != null) {
1869                                         cancel_button.PerformClick();
1870                                         return true;
1871                                 }
1872                         }
1873                         return base.ProcessDialogKey(keyData);
1874                 }
1875
1876                 protected override bool ProcessKeyPreview(ref Message msg) {
1877                         if (key_preview) {
1878                                 if (ProcessKeyEventArgs(ref msg)) {
1879                                         return true;
1880                                 }
1881                         }
1882                         return base.ProcessKeyPreview (ref msg);
1883                 }
1884
1885                 protected override bool ProcessTabKey(bool forward) {
1886                         return SelectNextControl(ActiveControl, forward, true, true, true);
1887                 }
1888
1889 #if NET_2_0
1890                 [EditorBrowsable(EditorBrowsableState.Never)]
1891 #else
1892                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1893 #endif
1894                 protected override void ScaleCore(float dx, float dy) {
1895                         try {
1896                                 SuspendLayout();
1897
1898                                 // We can't scale max or min windows
1899                                 if (WindowState == FormWindowState.Normal) {
1900                                         // We cannot call base since base also adjusts X/Y, but
1901                                         // a form is toplevel and doesn't move
1902                                         Size    size;
1903
1904                                         size = ClientSize;
1905                                         if (!GetStyle(ControlStyles.FixedWidth)) {
1906                                                 size.Width = (int)(size.Width * dx);
1907                                         }
1908
1909                                         if (!GetStyle(ControlStyles.FixedHeight)) {
1910                                                 size.Height = (int)(size.Height * dy);
1911                                         }
1912
1913                                         ClientSize = size;
1914                                 }
1915
1916                                 /* Now scale our children */
1917                                 Control [] controls = Controls.GetAllControls ();
1918                                 for (int i=0; i < controls.Length; i++) {
1919                                         controls[i].Scale(dx, dy);
1920                                 }
1921                         }
1922
1923                         finally {
1924                                 ResumeLayout();
1925                         }
1926                 }
1927
1928                 protected override void Select(bool directed, bool forward) {
1929                         Form    parent;
1930
1931                         if (directed) {
1932                                 base.SelectNextControl(null, forward, true, true, true);
1933                         }
1934
1935                         parent = this.ParentForm;
1936                         if (parent != null) {
1937                                 parent.ActiveControl = this;
1938                         }
1939
1940                         Activate();
1941                 }
1942
1943                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1944                 protected override void SetBoundsCore(int x, int y, int width, int height, BoundsSpecified specified) {
1945                         base.SetBoundsCore (x, y, width, height, specified);
1946                 }
1947
1948                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1949                 protected override void SetClientSizeCore(int x, int y) {
1950                         if ((minimum_size.Width != 0) && (x < minimum_size.Width)) {
1951                                 x = minimum_size.Width;
1952                         } else if ((maximum_size.Width != 0) && (x > maximum_size.Width)) {
1953                                 x = maximum_size.Width;
1954                         }
1955
1956                         if ((minimum_size.Height != 0) && (y < minimum_size.Height)) {
1957                                 y = minimum_size.Height;
1958                         } else if ((maximum_size.Height != 0) && (y > maximum_size.Height)) {
1959                                 y = maximum_size.Height;
1960                         }
1961
1962                         Rectangle ClientRect = new Rectangle(0, 0, x, y);
1963                         Rectangle WindowRect;
1964                         CreateParams cp = this.CreateParams;
1965
1966                         clientsize_set = new Size(x, y);
1967
1968                         if (XplatUI.CalculateWindowRect(ref ClientRect, cp.Style, cp.ExStyle, cp.menu, out WindowRect)) {
1969                                 SetBounds(bounds.X, bounds.Y, WindowRect.Width, WindowRect.Height, BoundsSpecified.Size);
1970                         }
1971                 }
1972
1973                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1974                 protected override void SetVisibleCore(bool value) {
1975                         is_changing_visible_state = true;
1976                         has_been_visible = value || has_been_visible;
1977                         base.SetVisibleCore (value);
1978                         is_changing_visible_state = false;
1979
1980 #if NET_2_0
1981                         // Shown event is only called once, the first time the form is made visible
1982                         if (value && !shown_raised) {
1983                                 this.OnShown (EventArgs.Empty);
1984                                 shown_raised = true;
1985                         }
1986 #endif
1987                 }
1988
1989                 protected override void UpdateDefaultButton() {
1990                         base.UpdateDefaultButton ();
1991                 }
1992
1993                 [EditorBrowsable(EditorBrowsableState.Advanced)]
1994                 protected override void WndProc(ref Message m) {
1995 #if debug
1996                         Console.WriteLine(DateTime.Now.ToLongTimeString () + " Form {0} ({2}) received message {1}", window.Handle == IntPtr.Zero ? this.Text : XplatUI.Window(window.Handle), m.ToString (), Text);
1997 #endif
1998
1999                         if (window_manager != null && window_manager.HandleMessage (ref m)) {
2000                                 return;
2001                         }
2002
2003                         switch((Msg)m.Msg) {
2004                                 case Msg.WM_DESTROY: {
2005                                         base.WndProc(ref m);
2006                                         if (!RecreatingHandle) {
2007                                                 this.closing = true;
2008                                         }
2009                                         return;
2010                                 }
2011
2012                                 case Msg.WM_CLOSE_INTERNAL: {
2013                                         DestroyHandle();
2014                                         break;
2015                                 }
2016
2017                                 case Msg.WM_CLOSE: {
2018                                         Form act = Form.ActiveForm;
2019                                         if (act != null && act != this && act.Modal == true) {
2020                                                 return;
2021                                         }
2022
2023                                         if (mdi_container != null) {
2024                                                 foreach (Form mdi_child in mdi_container.MdiChildren) {
2025                                                         mdi_child.FireClosingEvents (CloseReason.MdiFormClosing);
2026                                                 }
2027                                         }
2028
2029                                         if (!is_modal) {
2030                                                 if (!FireClosingEvents (CloseReason.UserClosing)) {
2031                                                         OnClosed (EventArgs.Empty);
2032 #if NET_2_0
2033                                                         OnFormClosed (new FormClosedEventArgs (CloseReason.UserClosing));
2034 #endif
2035                                                         closing = true;
2036                                                         Dispose ();
2037                                                 }
2038                                                 else {
2039                                                         closing = false;
2040                                                 }
2041                                         } else {
2042                                                 if (FireClosingEvents (CloseReason.UserClosing)) {
2043                                                         DialogResult = DialogResult.None;
2044                                                         closing = false;
2045                                                 }
2046                                                 else {
2047                                                         OnClosed (EventArgs.Empty);
2048 #if NET_2_0
2049                                                         OnFormClosed (new FormClosedEventArgs (CloseReason.UserClosing));
2050 #endif
2051                                                         closing = true;
2052                                                         Hide ();
2053                                                 }
2054                                         }
2055
2056                                         return;
2057                                 }
2058
2059                                 case Msg.WM_WINDOWPOSCHANGED: {
2060                                         if (WindowState != FormWindowState.Minimized) {
2061                                                 base.WndProc(ref m);
2062                                         }
2063                                         return;
2064                                 }
2065
2066 #if NET_2_0
2067                                 case Msg.WM_SYSCOMMAND: {
2068                                         // Let *Strips know the app's title bar was clicked
2069                                         if (XplatUI.IsEnabled (Handle))
2070                                                 ToolStripManager.FireAppClicked ();
2071
2072                                         base.WndProc(ref m);
2073                                         break;
2074                                 }
2075 #endif
2076
2077                                 case Msg.WM_ACTIVATE: {
2078                                         if (m.WParam != (IntPtr)WindowActiveFlags.WA_INACTIVE) {
2079                                                 if (is_loaded) {
2080                                                         SelectActiveControl ();
2081
2082                                                         if (ActiveControl != null && !ActiveControl.Focused)
2083                                                                 SendControlFocus (ActiveControl);
2084                                                 }
2085
2086                                                 OnActivated(EventArgs.Empty);
2087                                         } else {
2088                                                 OnDeactivate(EventArgs.Empty);
2089                                         }
2090                                         return;
2091                                 }
2092
2093                                 case Msg.WM_KILLFOCUS: {
2094                                         base.WndProc(ref m);
2095                                         return;
2096                                 }
2097
2098                                 case Msg.WM_SETFOCUS: {
2099                                         if (ActiveControl != null && ActiveControl != this) {
2100                                                 ActiveControl.Focus();
2101                                                 return; // FIXME - do we need to run base.WndProc, even though we just changed focus?
2102                                         }
2103                                         if (IsMdiContainer) {
2104                                                 mdi_container.SendFocusToActiveChild ();
2105                                                 return;
2106                                         }
2107                                         base.WndProc(ref m);
2108                                         return;
2109                                 }
2110
2111                                 // Menu drawing
2112                                 case Msg.WM_NCLBUTTONDOWN: {
2113                                         if (XplatUI.IsEnabled (Handle) && ActiveMenu != null) {
2114                                                 ActiveMenu.OnMouseDown(this, new MouseEventArgs (FromParamToMouseButtons ((int) m.WParam.ToInt32()), mouse_clicks, Control.MousePosition.X, Control.MousePosition.Y, 0));
2115                                         }
2116
2117                                         if (ActiveMaximizedMdiChild != null) {
2118                                                 if (ActiveMaximizedMdiChild.HandleMenuMouseDown (ActiveMenu,
2119                                                                 LowOrder ((int) m.LParam.ToInt32 ()),
2120                                                                 HighOrder ((int) m.LParam.ToInt32 ()))) {
2121                                                         // Don't let base process this message, otherwise we won't
2122                                                         // get a WM_NCLBUTTONUP.
2123                                                         return;
2124                                                 }
2125                                         }
2126                                         base.WndProc(ref m);
2127                                         return;
2128                                 }
2129                                 case Msg.WM_NCLBUTTONUP: {
2130                                         if (ActiveMaximizedMdiChild != null) {
2131                                                 ActiveMaximizedMdiChild.HandleMenuMouseUp (ActiveMenu,
2132                                                                 LowOrder ((int)m.LParam.ToInt32 ()),
2133                                                                 HighOrder ((int)m.LParam.ToInt32 ()));
2134                                         }
2135                                         base.WndProc (ref m);
2136                                         return;
2137                                 }
2138
2139                                 case Msg.WM_NCMOUSELEAVE: {
2140                                         if (ActiveMaximizedMdiChild != null) {
2141                                                 ActiveMaximizedMdiChild.HandleMenuMouseLeave(ActiveMenu,
2142                                                                 LowOrder((int)m.LParam.ToInt32()),
2143                                                                 HighOrder((int)m.LParam.ToInt32()));
2144                                         }
2145                                         base.WndProc(ref m);
2146                                         return;
2147                                 }
2148
2149                                 case Msg.WM_NCMOUSEMOVE: {
2150                                         if (XplatUI.IsEnabled (Handle) && ActiveMenu != null) {
2151                                                 ActiveMenu.OnMouseMove(this, new MouseEventArgs (FromParamToMouseButtons ((int) m.WParam.ToInt32()), mouse_clicks, LowOrder ((int) m.LParam.ToInt32 ()), HighOrder ((int) m.LParam.ToInt32 ()), 0));
2152                                         }
2153
2154                                         if (ActiveMaximizedMdiChild != null) {
2155                                                 XplatUI.RequestAdditionalWM_NCMessages (Handle, false, true);
2156                                                 ActiveMaximizedMdiChild.HandleMenuMouseMove (ActiveMenu,
2157                                                                 LowOrder ((int)m.LParam.ToInt32 ()),
2158                                                                 HighOrder ((int)m.LParam.ToInt32 ()));
2159                                         }
2160                                         base.WndProc(ref m);
2161                                         return;
2162                                 }
2163
2164                                 case Msg.WM_NCPAINT: {
2165                                         if (ActiveMenu != null) {
2166                                                 PaintEventArgs  pe;
2167                                                 Point           pnt;
2168
2169                                                 pe = XplatUI.PaintEventStart(Handle, false);
2170                                                 pnt = XplatUI.GetMenuOrigin(window.Handle);
2171
2172                                                 // The entire menu has to be in the clip rectangle because the
2173                                                 // control buttons are right-aligned and otherwise they would
2174                                                 // stay painted when the window gets resized.
2175                                                 Rectangle clip = new Rectangle (pnt.X, pnt.Y, ClientSize.Width, 0);
2176                                                 clip = Rectangle.Union(clip, pe.ClipRectangle);
2177                                                 pe.SetClip(clip);
2178                                                 pe.Graphics.SetClip(clip);
2179
2180                                                 ActiveMenu.Draw (pe, new Rectangle (pnt.X, pnt.Y, ClientSize.Width, 0));
2181
2182                                                 if (ActiveMaximizedMdiChild != null) {
2183                                                         ActiveMaximizedMdiChild.DrawMaximizedButtons (ActiveMenu, pe);
2184                                                 }
2185
2186                                                 XplatUI.PaintEventEnd(Handle, false);
2187                                         }
2188
2189                                         base.WndProc(ref m);
2190                                         return;
2191                                 }
2192
2193                                 case Msg.WM_NCCALCSIZE: {
2194                                         XplatUIWin32.NCCALCSIZE_PARAMS  ncp;
2195
2196                                         if ((ActiveMenu != null) && (m.WParam == (IntPtr)1)) {
2197                                                 ncp = (XplatUIWin32.NCCALCSIZE_PARAMS)Marshal.PtrToStructure(m.LParam, typeof(XplatUIWin32.NCCALCSIZE_PARAMS));
2198
2199                                                 // Adjust for menu
2200                                                 ncp.rgrc1.top += ThemeEngine.Current.CalcMenuBarSize (DeviceContext, ActiveMenu, ClientSize.Width);
2201                                                 Marshal.StructureToPtr(ncp, m.LParam, true);
2202                                         }
2203                                         DefWndProc(ref m);
2204                                         break;
2205                                 }
2206
2207                                 case Msg.WM_MOUSEMOVE: {
2208                                         if (XplatUI.IsEnabled (Handle) && active_tracker != null) {
2209                                                 MouseEventArgs args;
2210
2211                                                 args = new MouseEventArgs (FromParamToMouseButtons ((int) m.WParam.ToInt32()),
2212                                                         mouse_clicks,  LowOrder ((int) m.LParam.ToInt32 ()), HighOrder ((int) m.LParam.ToInt32 ()),  0);
2213                                                 active_tracker.OnMotion(new MouseEventArgs (args.Button, args.Clicks, Control.MousePosition.X, Control.MousePosition.Y, args.Delta));
2214                                                 break;
2215                                         }
2216                                         base.WndProc(ref m);
2217                                         break;
2218                                 }
2219
2220                                 case Msg.WM_LBUTTONDOWN:
2221                                 case Msg.WM_MBUTTONDOWN:
2222                                 case Msg.WM_RBUTTONDOWN: {
2223                                         if (XplatUI.IsEnabled (Handle) && active_tracker != null) {
2224                                                 MouseEventArgs args;
2225
2226                                                 args = new MouseEventArgs (FromParamToMouseButtons ((int) m.WParam.ToInt32()),
2227                                                         mouse_clicks, LowOrder ((int) m.LParam.ToInt32 ()), HighOrder ((int) m.LParam.ToInt32 ()), 0);
2228                                                 active_tracker.OnMouseDown(new MouseEventArgs (args.Button, args.Clicks, Control.MousePosition.X, Control.MousePosition.Y, args.Delta));
2229                                                 return;
2230                                         }
2231 #if NET_2_0
2232                                         ToolStripManager.FireAppClicked ();
2233 #endif
2234                                         base.WndProc (ref m);
2235                                         return;
2236                                 }
2237
2238                                 case Msg.WM_LBUTTONUP:
2239                                 case Msg.WM_MBUTTONUP:
2240                                 case Msg.WM_RBUTTONUP: {
2241                                         if (XplatUI.IsEnabled (Handle) && active_tracker != null) {
2242                                                 MouseEventArgs args;
2243                                                 MouseButtons mb = FromParamToMouseButtons ((int) m.WParam.ToInt32());
2244
2245                                                 // We add in the button that was released (not sent in WParam)
2246                                                 switch((Msg)m.Msg) {
2247                                                         case Msg.WM_LBUTTONUP:
2248                                                                 mb |= MouseButtons.Left;
2249                                                                 break;
2250                                                         case Msg.WM_MBUTTONUP:
2251                                                                 mb |= MouseButtons.Middle;
2252                                                                 break;
2253                                                         case Msg.WM_RBUTTONUP:
2254                                                                 mb |= MouseButtons.Right;
2255                                                                 break;
2256                                                 }
2257
2258                                                 args = new MouseEventArgs (mb, mouse_clicks, LowOrder ((int) m.LParam.ToInt32 ()), HighOrder ((int) m.LParam.ToInt32 ()), 0);
2259                                                 active_tracker.OnMouseUp(new MouseEventArgs (args.Button, args.Clicks, Control.MousePosition.X, Control.MousePosition.Y, args.Delta));
2260                                                 mouse_clicks = 1;
2261                                                 return;
2262                                         }
2263                                         base.WndProc(ref m);
2264                                         return;
2265                                 }
2266
2267                                 case Msg.WM_GETMINMAXINFO: {
2268                                         MINMAXINFO      mmi;
2269
2270                                         if (m.LParam != IntPtr.Zero) {
2271                                                 mmi = (MINMAXINFO)Marshal.PtrToStructure(m.LParam, typeof(MINMAXINFO));
2272
2273                                                 default_maximized_bounds = new Rectangle(mmi.ptMaxPosition.x, mmi.ptMaxPosition.y, mmi.ptMaxSize.x, mmi.ptMaxSize.y);
2274                                                 if (maximized_bounds != Rectangle.Empty) {
2275                                                         mmi.ptMaxPosition.x = maximized_bounds.Left;
2276                                                         mmi.ptMaxPosition.y = maximized_bounds.Top;
2277                                                         mmi.ptMaxSize.x = maximized_bounds.Width;
2278                                                         mmi.ptMaxSize.y = maximized_bounds.Height;
2279                                                 }
2280
2281                                                 if (minimum_size != Size.Empty) {
2282                                                         mmi.ptMinTrackSize.x = minimum_size.Width;
2283                                                         mmi.ptMinTrackSize.y = minimum_size.Height;
2284                                                 }
2285
2286                                                 if (maximum_size != Size.Empty) {
2287                                                         mmi.ptMaxTrackSize.x = maximum_size.Width;
2288                                                         mmi.ptMaxTrackSize.y = maximum_size.Height;
2289                                                 }
2290                                                 Marshal.StructureToPtr(mmi, m.LParam, false);
2291                                         }
2292                                         break;
2293                                 }
2294
2295 #if NET_2_0
2296                                 case Msg.WM_MOUSEACTIVATE: {
2297                                         // Let *Strips know the form or another control has been clicked
2298                                         if (XplatUI.IsEnabled (Handle))
2299                                                 ToolStripManager.FireAppClicked ();
2300
2301                                         base.WndProc (ref m);
2302                                         break;
2303                                 }
2304
2305                                 case Msg.WM_ACTIVATEAPP: {
2306                                         // Let *Strips know the app lost focus
2307                                         if (m.WParam == (IntPtr)0)
2308                                                 if (XplatUI.IsEnabled (Handle))
2309                                                         ToolStripManager.FireAppFocusChanged (this);
2310
2311                                         base.WndProc (ref m);
2312                                         break;
2313                                 }
2314 #endif
2315
2316                                 default: {
2317                                         base.WndProc (ref m);
2318                                         break;
2319                                 }
2320                         }
2321                 }
2322                 #endregion      // Protected Instance Methods
2323
2324                 internal override void FireEnter ()
2325                 {
2326                         // do nothing - forms don't generate OnEnter
2327                 }
2328
2329                 internal override void FireLeave ()
2330                 {
2331                         // do nothing - forms don't generate OnLeave
2332                 }
2333
2334                 internal void RemoveWindowManager ()
2335                 {
2336                         window_manager = null;
2337                 }
2338
2339                 internal override void CheckAcceptButton()
2340                 {
2341                         if (accept_button != null) {
2342                                 Button a_button = accept_button as Button;
2343
2344                                 if (ActiveControl == a_button)
2345                                         return;
2346
2347                                 if (ActiveControl is Button) {
2348                                         a_button.paint_as_acceptbutton = false;
2349                                         a_button.Redraw();
2350                                         return;
2351                                 } else {
2352                                         a_button.paint_as_acceptbutton = true;
2353                                         a_button.Redraw();
2354                                 }
2355                         }
2356                 }
2357
2358                 #region Events
2359                 static object ActivatedEvent = new object ();
2360                 static object ClosedEvent = new object ();
2361                 static object ClosingEvent = new object ();
2362                 static object DeactivateEvent = new object ();
2363                 static object InputLanguageChangedEvent = new object ();
2364                 static object InputLanguageChangingEvent = new object ();
2365                 static object LoadEvent = new object ();
2366                 static object MaximizedBoundsChangedEvent = new object ();
2367                 static object MaximumSizeChangedEvent = new object ();
2368                 static object MdiChildActivateEvent = new object ();
2369                 static object MenuCompleteEvent = new object ();
2370                 static object MenuStartEvent = new object ();
2371                 static object MinimumSizeChangedEvent = new object ();
2372
2373                 public event EventHandler Activated {
2374                         add { Events.AddHandler (ActivatedEvent, value); }
2375                         remove { Events.RemoveHandler (ActivatedEvent, value); }
2376                 }
2377
2378 #if NET_2_0
2379                 [Browsable (false)]
2380                 [EditorBrowsable (EditorBrowsableState.Never)]
2381 #endif
2382                 public event EventHandler Closed {
2383                         add { Events.AddHandler (ClosedEvent, value); }
2384                         remove { Events.RemoveHandler (ClosedEvent, value); }
2385                 }
2386
2387 #if NET_2_0
2388                 [Browsable (false)]
2389                 [EditorBrowsable (EditorBrowsableState.Never)]
2390 #endif
2391                 public event CancelEventHandler Closing {
2392                         add { Events.AddHandler (ClosingEvent, value); }
2393                         remove { Events.RemoveHandler (ClosingEvent, value); }
2394                 }
2395
2396                 public event EventHandler Deactivate {
2397                         add { Events.AddHandler (DeactivateEvent, value); }
2398                         remove { Events.RemoveHandler (DeactivateEvent, value); }
2399                 }
2400
2401                 public event InputLanguageChangedEventHandler InputLanguageChanged {
2402                         add { Events.AddHandler (InputLanguageChangedEvent, value); }
2403                         remove { Events.RemoveHandler (InputLanguageChangedEvent, value); }
2404                 }
2405
2406                 public event InputLanguageChangingEventHandler InputLanguageChanging {
2407                         add { Events.AddHandler (InputLanguageChangingEvent, value); }
2408                         remove { Events.RemoveHandler (InputLanguageChangingEvent, value); }
2409                 }
2410
2411                 public event EventHandler Load {
2412                         add { Events.AddHandler (LoadEvent, value); }
2413                         remove { Events.RemoveHandler (LoadEvent, value); }
2414                 }
2415
2416                 public event EventHandler MaximizedBoundsChanged {
2417                         add { Events.AddHandler (MaximizedBoundsChangedEvent, value); }
2418                         remove { Events.RemoveHandler (MaximizedBoundsChangedEvent, value); }
2419                 }
2420
2421                 public event EventHandler MaximumSizeChanged {
2422                         add { Events.AddHandler (MaximumSizeChangedEvent, value); }
2423                         remove { Events.RemoveHandler (MaximumSizeChangedEvent, value); }
2424                 }
2425
2426                 public event EventHandler MdiChildActivate {
2427                         add { Events.AddHandler (MdiChildActivateEvent, value); }
2428                         remove { Events.RemoveHandler (MdiChildActivateEvent, value); }
2429                 }
2430
2431 #if NET_2_0
2432                 [Browsable (false)]
2433 #endif
2434                 public event EventHandler MenuComplete {
2435                         add { Events.AddHandler (MenuCompleteEvent, value); }
2436                         remove { Events.RemoveHandler (MenuCompleteEvent, value); }
2437                 }
2438
2439 #if NET_2_0
2440                 [Browsable (false)]
2441 #endif
2442                 public event EventHandler MenuStart {
2443                         add { Events.AddHandler (MenuStartEvent, value); }
2444                         remove { Events.RemoveHandler (MenuStartEvent, value); }
2445                 }
2446
2447                 public event EventHandler MinimumSizeChanged {
2448                         add { Events.AddHandler (MinimumSizeChangedEvent, value); }
2449                         remove { Events.RemoveHandler (MinimumSizeChangedEvent, value); }
2450                 }
2451
2452
2453                 [Browsable(false)]
2454                 [EditorBrowsable(EditorBrowsableState.Never)]
2455                 public new event EventHandler TabIndexChanged {
2456                         add { base.TabIndexChanged += value; }
2457                         remove { base.TabIndexChanged -= value; }
2458                 }
2459                 #endregion      // Events
2460
2461 #if NET_2_0
2462                 [SettingsBindable (true)]
2463                 public override string Text {
2464                         get {
2465                                 return base.Text;
2466                         }
2467
2468                         set {
2469                                 base.Text = value;
2470                         }
2471                 }
2472
2473                 [SettingsBindable (true)]
2474                 public new Point Location {
2475                         get {
2476                                 return base.Location;
2477                         }
2478
2479                         set {
2480                                 base.Location = value;
2481                         }
2482                 }
2483
2484                 static object FormClosingEvent = new object ();
2485                 static object FormClosedEvent = new object ();
2486                 static object HelpButtonClickedEvent = new object ();
2487                 static object ResizeEndEvent = new object ();
2488                 static object ResizeBeginEvent = new object ();
2489                 static object RightToLeftLayoutChangedEvent = new object ();
2490                 static object ShownEvent = new object ();
2491
2492                 [Browsable (true)]
2493                 [EditorBrowsable (EditorBrowsableState.Always)]
2494                 public new event EventHandler AutoSizeChanged {
2495                         add { base.AutoSizeChanged += value; }
2496                         remove { base.AutoSizeChanged -= value; }
2497                 }
2498
2499                 [Browsable (true)]
2500                 [EditorBrowsable (EditorBrowsableState.Always)]
2501                 public new event EventHandler AutoValidateChanged {
2502                         add { base.AutoValidateChanged += value; }
2503                         remove { base.AutoValidateChanged -= value; }
2504                 }
2505
2506                 public event FormClosingEventHandler FormClosing {
2507                         add { Events.AddHandler (FormClosingEvent, value); }
2508                         remove { Events.RemoveHandler (FormClosingEvent, value); }
2509                 }
2510
2511                 public event FormClosedEventHandler FormClosed {
2512                         add { Events.AddHandler (FormClosedEvent, value); }
2513                         remove { Events.RemoveHandler (FormClosedEvent, value); }
2514                 }
2515
2516                 [Browsable (true)]
2517                 [EditorBrowsable (EditorBrowsableState.Always)]
2518                 public event CancelEventHandler HelpButtonClicked {
2519                         add { Events.AddHandler (HelpButtonClickedEvent, value); }
2520                         remove { Events.RemoveHandler (HelpButtonClickedEvent, value); }
2521                 }
2522
2523                 [Browsable (false)]
2524                 [EditorBrowsable (EditorBrowsableState.Never)]
2525                 public new event EventHandler MarginChanged {
2526                         add { base.MarginChanged += value; }
2527                         remove { base.MarginChanged -= value; }
2528                 }
2529
2530                 public event EventHandler RightToLeftLayoutChanged {
2531                         add { Events.AddHandler (RightToLeftLayoutChangedEvent, value); }
2532                         remove { Events.RemoveHandler (RightToLeftLayoutChangedEvent, value); }
2533                 }
2534
2535                 public event EventHandler ResizeBegin {
2536                         add { Events.AddHandler (ResizeBeginEvent, value); }
2537                         remove { Events.RemoveHandler (ResizeBeginEvent, value); }
2538                 }
2539
2540                 public event EventHandler ResizeEnd {
2541                         add { Events.AddHandler (ResizeEndEvent, value); }
2542                         remove { Events.RemoveHandler (ResizeEndEvent, value); }
2543                 }
2544
2545                 public event EventHandler Shown {
2546                         add { Events.AddHandler (ShownEvent, value); }
2547                         remove { Events.RemoveHandler (ShownEvent, value); }
2548                 }
2549
2550                 [Browsable (false)]
2551                 [EditorBrowsable (EditorBrowsableState.Never)]
2552                 public new event EventHandler TabStopChanged {
2553                         add { base.TabStopChanged += value; }
2554                         remove { base.TabStopChanged -= value; }
2555                 }
2556
2557                 protected override void OnBackgroundImageChanged (EventArgs e)
2558                 {
2559                         base.OnBackgroundImageChanged (e);
2560                 }
2561
2562                 protected override void OnBackgroundImageLayoutChanged (EventArgs e)
2563                 {
2564                         base.OnBackgroundImageLayoutChanged (e);
2565                 }
2566
2567                 [EditorBrowsable (EditorBrowsableState.Advanced)]
2568                 protected override void OnEnabledChanged (EventArgs e)
2569                 {
2570                         base.OnEnabledChanged (e);
2571                 }
2572
2573                 [EditorBrowsable (EditorBrowsableState.Advanced)]
2574                 protected override void OnEnter (EventArgs e)
2575                 {
2576                         base.OnEnter (e);
2577                 }
2578
2579                 [EditorBrowsable (EditorBrowsableState.Advanced)]
2580                 protected virtual void OnFormClosed (FormClosedEventArgs e) {
2581                         FormClosedEventHandler eh = (FormClosedEventHandler)(Events[FormClosedEvent]);
2582                         if (eh != null)
2583                                 eh (this, e);
2584                 }
2585
2586                 // Consider calling FireClosingEvents instead of calling this directly.
2587                 [EditorBrowsable (EditorBrowsableState.Advanced)]
2588                 protected virtual void OnFormClosing (FormClosingEventArgs e)
2589                 {
2590                         FormClosingEventHandler eh = (FormClosingEventHandler)(Events [FormClosingEvent]);
2591                         if (eh != null)
2592                                 eh (this, e);
2593                 }
2594
2595                 [MonoTODO ("Not hooked up to event")]
2596                 [EditorBrowsable (EditorBrowsableState.Advanced)]
2597                 protected virtual void OnHelpButtonClicked (CancelEventArgs e)
2598                 {
2599                         CancelEventHandler eh = (CancelEventHandler)(Events[HelpButtonClickedEvent]);
2600                         if (eh != null)
2601                                 eh (this, e);
2602                 }
2603
2604                 protected override void OnLayout (LayoutEventArgs levent)
2605                 {
2606                         base.OnLayout (levent);
2607                 }
2608
2609                 [EditorBrowsable (EditorBrowsableState.Advanced)]
2610                 protected virtual void OnResizeBegin (EventArgs e)
2611                 {
2612                         EventHandler eh = (EventHandler) (Events [ResizeBeginEvent]);
2613                         if (eh != null)
2614                                 eh (this, e);
2615                 }
2616
2617                 [EditorBrowsable (EditorBrowsableState.Advanced)]
2618                 protected virtual void OnResizeEnd (EventArgs e)
2619                 {
2620                         EventHandler eh = (EventHandler) (Events [ResizeEndEvent]);
2621                         if (eh != null)
2622                                 eh (this, e);
2623                 }
2624
2625                 [EditorBrowsable (EditorBrowsableState.Advanced)]
2626                 protected virtual void OnShown (EventArgs e)
2627                 {
2628                         EventHandler eh = (EventHandler) (Events [ShownEvent]);
2629                         if (eh != null)
2630                                 eh (this, e);
2631                 }
2632 #endif
2633         }
2634 }