src/mac/toplevel.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        mac/toplevel.cpp
   3 // Purpose:     implements wxTopLevelWindow for MSW
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     24.09.01
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2001 SciTech Software, Inc. (www.scitechsoft.com)
   9 // License:     wxWindows license
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #ifdef __GNUG__
  21     #pragma implementation "toplevel.h"
  22 #endif
  23
  24 // For compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26
  27 #ifdef __BORLANDC__
  28     #pragma hdrstop
  29 #endif
  30
  31 #ifndef WX_PRECOMP
  32     #include "wx/app.h"
  33     #include "wx/toplevel.h"
  34     #include "wx/frame.h"
  35     #include "wx/string.h"
  36     #include "wx/log.h"
  37     #include "wx/intl.h"
  38 #endif //WX_PRECOMP
  39
  40 #include "wx/mac/uma.h"
  41 #include "wx/mac/aga.h"
  42 #include "wx/app.h"
  43 #include "wx/tooltip.h"
  44 #include "wx/dnd.h"
  45
  46 #define wxMAC_DEBUG_REDRAW 0
  47 #ifndef wxMAC_DEBUG_REDRAW
  48 #define wxMAC_DEBUG_REDRAW 0
  49 #endif
  50
  51 // ----------------------------------------------------------------------------
  52 // globals
  53 // ----------------------------------------------------------------------------
  54
  55 // list of all frames and modeless dialogs
  56 wxWindowList       wxModelessWindows;
  57
  58 // double click testing
  59 static   Point     gs_lastWhere;
  60 static   long      gs_lastWhen = 0;
  61
  62 // cursor stuff
  63 extern   int       wxBusyCursorCount;
  64
  65
  66 // ============================================================================
  67 // wxTopLevelWindowMac implementation
  68 // ============================================================================
  69
  70 // ---------------------------------------------------------------------------
  71 // wxWindowMac utility functions
  72 // ---------------------------------------------------------------------------
  73
  74 // Find an item given the Macintosh Window Reference
  75
  76 wxList *wxWinMacWindowList = NULL;
  77 wxTopLevelWindowMac *wxFindWinFromMacWindow(WXWindow inWindowRef)
  78 {
  79     wxNode *node = wxWinMacWindowList->Find((long)inWindowRef);
  80     if (!node)
  81         return NULL;
  82     return (wxTopLevelWindowMac *)node->Data();
  83 }
  84
  85 void wxAssociateWinWithMacWindow(WXWindow inWindowRef, wxTopLevelWindowMac *win)
  86 {
  87     // adding NULL WindowRef is (first) surely a result of an error and
  88     // (secondly) breaks menu command processing
  89     wxCHECK_RET( inWindowRef != (WindowRef) NULL, "attempt to add a NULL WindowRef to window list" );
  90
  91     if ( !wxWinMacWindowList->Find((long)inWindowRef) )
  92         wxWinMacWindowList->Append((long)inWindowRef, win);
  93 }
  94
  95 void wxRemoveMacWindowAssociation(wxTopLevelWindowMac *win)
  96 {
  97     wxWinMacWindowList->DeleteObject(win);
  98 }
  99
 100
 101 // ----------------------------------------------------------------------------
 102 // wxTopLevelWindowMac creation
 103 // ----------------------------------------------------------------------------
 104
 105 WXHWND wxTopLevelWindowMac::s_macWindowInUpdate = NULL;
 106
 107 void wxTopLevelWindowMac::Init()
 108 {
 109     m_iconized =
 110     m_maximizeOnShow = FALSE;
 111     m_macNoEraseUpdateRgn = NewRgn() ;
 112     m_macNeedsErasing = false ;
 113     m_macWindow = NULL ;
 114     m_macEventHandler = NULL ;
 115 }
 116
 117 class wxMacDeferredWindowDeleter : public wxObject
 118 {
 119 public :
 120     wxMacDeferredWindowDeleter( WindowRef windowRef )
 121     {
 122         m_macWindow = windowRef ;
 123     }
 124     virtual ~wxMacDeferredWindowDeleter()
 125     {
 126         UMADisposeWindow( (WindowRef) m_macWindow ) ;
 127     }
 128  protected :
 129     WindowRef m_macWindow ;
 130 } ;
 131
 132 bool wxTopLevelWindowMac::Create(wxWindow *parent,
 133                                  wxWindowID id,
 134                                  const wxString& title,
 135                                  const wxPoint& pos,
 136                                  const wxSize& size,
 137                                  long style,
 138                                  const wxString& name)
 139 {
 140     // init our fields
 141     Init();
 142
 143     m_windowStyle = style;
 144
 145     SetName(name);
 146
 147     m_windowId = id == -1 ? NewControlId() : id;
 148
 149     wxTopLevelWindows.Append(this);
 150
 151     if ( parent )
 152         parent->AddChild(this);
 153
 154     return TRUE;
 155 }
 156
 157 wxTopLevelWindowMac::~wxTopLevelWindowMac()
 158 {
 159     if ( m_macWindow )
 160     {
 161         wxToolTip::NotifyWindowDelete(m_macWindow) ;
 162         wxPendingDelete.Append( new wxMacDeferredWindowDeleter( (WindowRef) m_macWindow ) ) ;
 163     }
 164
 165 #if TARGET_CARBON
 166     if ( m_macEventHandler )
 167     {
 168         ::RemoveEventHandler((EventHandlerRef) m_macEventHandler);
 169         m_macEventHandler = NULL ;
 170     }
 171 #endif
 172     wxRemoveMacWindowAssociation( this ) ;
 173
 174     if ( wxModelessWindows.Find(this) )
 175         wxModelessWindows.DeleteObject(this);
 176
 177     DisposeRgn( (RgnHandle) m_macNoEraseUpdateRgn ) ;
 178 }
 179
 180
 181 // ----------------------------------------------------------------------------
 182 // wxTopLevelWindowMac maximize/minimize
 183 // ----------------------------------------------------------------------------
 184
 185 void wxTopLevelWindowMac::Maximize(bool maximize)
 186 {
 187     // not available on mac
 188 }
 189
 190 bool wxTopLevelWindowMac::IsMaximized() const
 191 {
 192     return false ;
 193 }
 194
 195 void wxTopLevelWindowMac::Iconize(bool iconize)
 196 {
 197     // not available on mac
 198 }
 199
 200 bool wxTopLevelWindowMac::IsIconized() const
 201 {
 202     // mac dialogs cannot be iconized
 203     return FALSE;
 204 }
 205
 206 void wxTopLevelWindowMac::Restore()
 207 {
 208     // not available on mac
 209 }
 210
 211 // ----------------------------------------------------------------------------
 212 // wxTopLevelWindowMac misc
 213 // ----------------------------------------------------------------------------
 214
 215 void wxTopLevelWindowMac::SetIcon(const wxIcon& icon)
 216 {
 217     // this sets m_icon
 218     wxTopLevelWindowBase::SetIcon(icon);
 219 }
 220
 221 #if TARGET_CARBON
 222
 223 EventHandlerUPP wxMacWindowEventHandlerUPP = NULL ;
 224
 225 extern long wxMacTranslateKey(unsigned char key, unsigned char code) ;
 226
 227 pascal OSStatus wxMacWindowEventHandler( EventHandlerCallRef handler , EventRef event , void *data )
 228 {
 229     OSStatus result = eventNotHandledErr ;
 230     EventRecord rec ;
 231     switch ( GetEventClass( event ) )
 232     {
 233         case kEventClassTextInput :
 234             if ( wxMacConvertEventToRecord( event , &rec ) )
 235             {
 236                         wxTheApp->m_macCurrentEvent = &rec ;
 237                 wxWindow* focus = wxWindow::FindFocus() ;
 238                 if ( (focus != NULL) && !UMAMenuEvent(&rec) && wxTheApp->MacSendKeyDownEvent( focus , rec.message , rec.modifiers , rec.when , rec.where.h , rec.where.v ) )
 239                 {
 240                     // was handled internally
 241                     result = noErr ;
 242                 }
 243             }
 244             break ;
 245         default :
 246             break ;
 247     }
 248     return result ;
 249 }
 250
 251 #endif
 252
 253 void wxTopLevelWindowMac::MacInstallEventHandler()
 254 {
 255 #if TARGET_CARBON
 256         if ( wxMacWindowEventHandlerUPP == NULL )
 257         {
 258             wxMacWindowEventHandlerUPP = NewEventHandlerUPP( wxMacWindowEventHandler ) ;
 259         }
 260
 261         static const EventTypeSpec eventList[] =
 262         {
 263             { kEventClassTextInput, kEventTextInputUnicodeForKeyEvent }
 264         } ;
 265         if ( m_macEventHandler )
 266         {
 267         ::RemoveEventHandler((EventHandlerRef) m_macEventHandler);
 268         m_macEventHandler = NULL ;
 269     }
 270         InstallWindowEventHandler(MAC_WXHWND(m_macWindow), wxMacWindowEventHandlerUPP, WXSIZEOF(eventList), eventList, this, &((EventHandlerRef)m_macEventHandler));
 271 #endif
 272 }
 273
 274 void  wxTopLevelWindowMac::MacCreateRealWindow( const wxString& title,
 275            const wxPoint& pos,
 276            const wxSize& size,
 277            long style,
 278            const wxString& name )
 279 {
 280   SetName(name);
 281   m_windowStyle = style;
 282   m_isShown = FALSE;
 283
 284   // create frame.
 285
 286     Rect theBoundsRect;
 287
 288   m_x = (int)pos.x;
 289   m_y = (int)pos.y;
 290   if ( m_y < 50 )
 291     m_y = 50 ;
 292   if ( m_x < 20 )
 293     m_x = 20 ;
 294
 295   m_width = size.x;
 296     if (m_width == -1)
 297         m_width = 20;
 298   m_height = size.y;
 299     if (m_height == -1)
 300         m_height = 20;
 301
 302     ::SetRect(&theBoundsRect, m_x, m_y , m_x + m_width, m_y + m_height);
 303
 304     // translate the window attributes in the appropriate window class and attributes
 305
 306     WindowClass wclass = 0;
 307     WindowAttributes attr = kWindowNoAttributes ;
 308
 309     if ( HasFlag( wxFRAME_TOOL_WINDOW) )
 310     {
 311         if (
 312             HasFlag( wxMINIMIZE_BOX ) || HasFlag( wxMAXIMIZE_BOX ) ||
 313             HasFlag( wxSYSTEM_MENU ) || HasFlag( wxCAPTION ) ||
 314             HasFlag(wxTINY_CAPTION_HORIZ) ||  HasFlag(wxTINY_CAPTION_VERT)
 315              )
 316         {
 317             wclass = kFloatingWindowClass ;
 318             if ( HasFlag(wxTINY_CAPTION_VERT) )
 319             {
 320                 attr |= kWindowSideTitlebarAttribute ;
 321             }
 322         }
 323         else
 324         {
 325 #if TARGET_CARBON
 326             wclass = kPlainWindowClass ;
 327 #else
 328             wclass = kFloatingWindowClass ;
 329 #endif
 330         }
 331     }
 332     else if ( HasFlag( wxCAPTION ) )
 333     {
 334         if ( HasFlag( wxDIALOG_MODAL ) )
 335         {
 336             wclass = kDocumentWindowClass ; // kMovableModalWindowClass ;
 337         }
 338         else
 339         {
 340             wclass = kDocumentWindowClass ;
 341         }
 342     }
 343     else
 344     {
 345         if ( HasFlag( wxMINIMIZE_BOX ) || HasFlag( wxMAXIMIZE_BOX ) ||
 346              HasFlag( wxSYSTEM_MENU ) )
 347         {
 348             wclass = kDocumentWindowClass ;
 349         }
 350         else
 351         {
 352 #if TARGET_CARBON
 353             wclass = kPlainWindowClass ;
 354 #else
 355             wclass = kModalWindowClass ;
 356 #endif
 357         }
 358     }
 359
 360     if ( HasFlag( wxMINIMIZE_BOX ) || HasFlag( wxMAXIMIZE_BOX ) )
 361     {
 362         attr |= kWindowFullZoomAttribute ;
 363         attr |= kWindowCollapseBoxAttribute ;
 364     }
 365     if ( HasFlag( wxRESIZE_BORDER ) )
 366     {
 367         attr |= kWindowResizableAttribute ;
 368     }
 369     if ( HasFlag( wxSYSTEM_MENU ) )
 370     {
 371         attr |= kWindowCloseBoxAttribute ;
 372     }
 373
 374     ::CreateNewWindow( wclass , attr , &theBoundsRect , (WindowRef*)&m_macWindow ) ;
 375     wxAssociateWinWithMacWindow( m_macWindow , this ) ;
 376     wxString label ;
 377     if( wxApp::s_macDefaultEncodingIsPC )
 378         label = wxMacMakeMacStringFromPC( title ) ;
 379     else
 380         label = title ;
 381     UMASetWTitleC( (WindowRef)m_macWindow , label ) ;
 382     ::CreateRootControl( (WindowRef)m_macWindow , (ControlHandle*)&m_macRootControl ) ;
 383     MacInstallEventHandler() ;
 384
 385     m_macFocus = NULL ;
 386 }
 387
 388 void wxTopLevelWindowMac::MacGetPortParams(WXPOINTPTR localOrigin, WXRECTPTR clipRect, WXHWND *window  , wxWindowMac** rootwin)
 389 {
 390     ((Point*)localOrigin)->h = 0;
 391     ((Point*)localOrigin)->v = 0;
 392     ((Rect*)clipRect)->left = 0;
 393     ((Rect*)clipRect)->top = 0;
 394     ((Rect*)clipRect)->right = m_width;
 395     ((Rect*)clipRect)->bottom = m_height;
 396     *window = m_macWindow ;
 397     *rootwin = this ;
 398 }
 399
 400 void wxTopLevelWindowMac::Clear()
 401 {
 402   wxWindow::Clear() ;
 403 }
 404
 405 WXWidget wxTopLevelWindowMac::MacGetContainerForEmbedding()
 406 {
 407     return m_macRootControl ;
 408 }
 409
 410
 411 void wxTopLevelWindowMac::MacUpdate( long timestamp)
 412 {
 413
 414     wxMacPortStateHelper help( (GrafPtr) GetWindowPort( (WindowRef) m_macWindow) ) ;
 415
 416     BeginUpdate( (WindowRef)m_macWindow ) ;
 417
 418     RgnHandle       updateRgn = NewRgn();
 419     RgnHandle       diffRgn = NewRgn() ;
 420     if ( updateRgn && diffRgn )
 421     {
 422         GetPortVisibleRegion( GetWindowPort( (WindowRef)m_macWindow ), updateRgn );
 423         DiffRgn( updateRgn , (RgnHandle) m_macNoEraseUpdateRgn , diffRgn ) ;
 424         if ( !EmptyRgn( updateRgn ) )
 425         {
 426             MacRedraw( updateRgn , timestamp , m_macNeedsErasing || !EmptyRgn( diffRgn )  ) ;
 427         }
 428     }
 429     if ( updateRgn )
 430         DisposeRgn( updateRgn );
 431     if ( diffRgn )
 432         DisposeRgn( diffRgn );
 433     EndUpdate( (WindowRef)m_macWindow ) ;
 434     SetEmptyRgn( (RgnHandle) m_macNoEraseUpdateRgn ) ;
 435     m_macNeedsErasing = false ;
 436 }
 437
 438
 439 // Raise the window to the top of the Z order
 440 void wxTopLevelWindowMac::Raise()
 441 {
 442     ::BringToFront( (WindowRef)m_macWindow ) ;
 443 }
 444
 445 // Lower the window to the bottom of the Z order
 446 void wxTopLevelWindowMac::Lower()
 447 {
 448     ::SendBehind( (WindowRef)m_macWindow , NULL ) ;
 449 }
 450
 451 void wxTopLevelWindowMac::MacFireMouseEvent( WXEVENTREF evr )
 452 {
 453     EventRecord *ev = (EventRecord*) evr ;
 454     wxMouseEvent event(wxEVT_LEFT_DOWN);
 455     bool isDown = !(ev->modifiers & btnState) ; // 1 is for up
 456     bool controlDown = ev->modifiers & controlKey ; // for simulating right mouse
 457
 458     event.m_leftDown = isDown && !controlDown;
 459
 460     event.m_middleDown = FALSE;
 461     event.m_rightDown = isDown && controlDown;
 462
 463     if ( ev->what == mouseDown )
 464     {
 465         if ( controlDown )
 466             event.SetEventType(wxEVT_RIGHT_DOWN ) ;
 467         else
 468             event.SetEventType(wxEVT_LEFT_DOWN ) ;
 469     }
 470     else if ( ev->what == mouseUp )
 471     {
 472         if ( controlDown )
 473             event.SetEventType(wxEVT_RIGHT_UP ) ;
 474         else
 475             event.SetEventType(wxEVT_LEFT_UP ) ;
 476     }
 477     else
 478     {
 479         event.SetEventType(wxEVT_MOTION ) ;
 480     }
 481
 482     event.m_shiftDown = ev->modifiers & shiftKey;
 483     event.m_controlDown = ev->modifiers & controlKey;
 484     event.m_altDown = ev->modifiers & optionKey;
 485     event.m_metaDown = ev->modifiers & cmdKey;
 486
 487     Point       localwhere = ev->where ;
 488
 489     GrafPtr     port ;
 490     ::GetPort( &port ) ;
 491     ::SetPort( UMAGetWindowPort( (WindowRef)m_macWindow ) ) ;
 492     ::GlobalToLocal( &localwhere ) ;
 493     ::SetPort( port ) ;
 494
 495     if ( ev->what == mouseDown )
 496     {
 497         if ( ev->when - gs_lastWhen <= GetDblTime() )
 498         {
 499             if ( abs( localwhere.h - gs_lastWhere.h ) < 3 && abs( localwhere.v - gs_lastWhere.v ) < 3 )
 500             {
 501                 // This is not right if the second mouse down
 502                 // event occured in a differen window. We
 503                 // correct this in MacDispatchMouseEvent.
 504                 if ( controlDown )
 505                     event.SetEventType(wxEVT_RIGHT_DCLICK ) ;
 506                 else
 507                     event.SetEventType(wxEVT_LEFT_DCLICK ) ;
 508             }
 509             gs_lastWhen = 0 ;
 510         }
 511         else
 512         {
 513             gs_lastWhen = ev->when ;
 514         }
 515         gs_lastWhere = localwhere ;
 516     }
 517
 518     event.m_x = localwhere.h;
 519     event.m_y = localwhere.v;
 520     event.m_x += m_x;
 521     event.m_y += m_y;
 522
 523     event.m_timeStamp = ev->when;
 524     event.SetEventObject(this);
 525     if ( wxTheApp->s_captureWindow )
 526     {
 527         int x = event.m_x ;
 528         int y = event.m_y ;
 529         wxTheApp->s_captureWindow->ScreenToClient( &x , &y ) ;
 530         event.m_x = x ;
 531         event.m_y = y ;
 532         event.SetEventObject( wxTheApp->s_captureWindow ) ;
 533         wxTheApp->s_captureWindow->GetEventHandler()->ProcessEvent( event ) ;
 534
 535         if ( ev->what == mouseUp )
 536         {
 537             wxTheApp->s_captureWindow = NULL ;
 538             if ( wxBusyCursorCount == 0 )
 539             {
 540                 m_cursor.MacInstall() ;
 541             }
 542         }
 543     }
 544     else
 545     {
 546         MacDispatchMouseEvent( event ) ;
 547     }
 548 }
 549
 550 void wxTopLevelWindowMac::MacMouseDown( WXEVENTREF ev , short part)
 551 {
 552     MacFireMouseEvent( ev ) ;
 553 }
 554
 555 void wxTopLevelWindowMac::MacMouseUp( WXEVENTREF ev , short part)
 556 {
 557     switch (part)
 558     {
 559         case inContent:
 560             {
 561                 MacFireMouseEvent( ev ) ;
 562             }
 563             break ;
 564     }
 565 }
 566
 567 void wxTopLevelWindowMac::MacMouseMoved( WXEVENTREF ev , short part)
 568 {
 569     switch (part)
 570     {
 571         case inContent:
 572             {
 573                 MacFireMouseEvent( ev ) ;
 574             }
 575             break ;
 576     }
 577 }
 578 void wxTopLevelWindowMac::MacActivate( WXEVENTREF ev , bool inIsActivating )
 579 {
 580     wxActivateEvent event(wxEVT_ACTIVATE, inIsActivating , m_windowId);
 581     event.m_timeStamp = ((EventRecord*)ev)->when ;
 582     event.SetEventObject(this);
 583
 584     GetEventHandler()->ProcessEvent(event);
 585
 586     UMAHighlightAndActivateWindow( (WindowRef)m_macWindow , inIsActivating ) ;
 587
 588     MacSuperEnabled( inIsActivating ) ;
 589 }
 590
 591 void wxTopLevelWindowMac::MacKeyDown( WXEVENTREF ev )
 592 {
 593 }
 594
 595 void wxTopLevelWindowMac::SetTitle(const wxString& title)
 596 {
 597     wxWindow::SetTitle( title ) ;
 598
 599     wxString label ;
 600
 601     if( wxApp::s_macDefaultEncodingIsPC )
 602         label = wxMacMakeMacStringFromPC( m_label ) ;
 603     else
 604         label = m_label ;
 605
 606     UMASetWTitleC( (WindowRef)m_macWindow , label ) ;
 607 }
 608
 609 bool wxTopLevelWindowMac::Show(bool show)
 610 {
 611     if ( !wxWindow::Show(show) )
 612         return FALSE;
 613
 614     if (show)
 615     {
 616       ::TransitionWindow((WindowRef)m_macWindow,kWindowZoomTransitionEffect,kWindowShowTransitionAction,nil);
 617       ::SelectWindow( (WindowRef)m_macWindow ) ;
 618       // no need to generate events here, they will get them triggered by macos
 619       // actually they should be , but apparently they are not
 620       wxSize size(m_width, m_height);
 621       wxSizeEvent event(size, m_windowId);
 622       event.SetEventObject(this);
 623       GetEventHandler()->ProcessEvent(event);
 624     }
 625     else
 626     {
 627       ::TransitionWindow((WindowRef)m_macWindow,kWindowZoomTransitionEffect,kWindowHideTransitionAction,nil);
 628     }
 629
 630     if ( !show )
 631     {
 632     }
 633     else
 634     {
 635         Refresh() ;
 636     }
 637
 638     return TRUE;
 639 }
 640
 641 void wxTopLevelWindowMac::DoMoveWindow(int x, int y, int width, int height)
 642 {
 643     int former_x = m_x ;
 644     int former_y = m_y ;
 645     int former_w = m_width ;
 646     int former_h = m_height ;
 647
 648   int actualWidth = width;
 649   int actualHeight = height;
 650   int actualX = x;
 651   int actualY = y;
 652
 653     if ((m_minWidth != -1) && (actualWidth < m_minWidth))
 654         actualWidth = m_minWidth;
 655     if ((m_minHeight != -1) && (actualHeight < m_minHeight))
 656         actualHeight = m_minHeight;
 657     if ((m_maxWidth != -1) && (actualWidth > m_maxWidth))
 658         actualWidth = m_maxWidth;
 659     if ((m_maxHeight != -1) && (actualHeight > m_maxHeight))
 660         actualHeight = m_maxHeight;
 661
 662     bool doMove = false ;
 663     bool doResize = false ;
 664
 665     if ( actualX != former_x || actualY != former_y )
 666     {
 667         doMove = true ;
 668     }
 669     if ( actualWidth != former_w || actualHeight != former_h )
 670     {
 671         doResize = true ;
 672     }
 673
 674     if ( doMove || doResize )
 675     {
 676         m_x = actualX ;
 677         m_y = actualY ;
 678         m_width = actualWidth ;
 679         m_height = actualHeight ;
 680
 681         if ( doMove )
 682             ::MoveWindow((WindowRef)m_macWindow, m_x, m_y  , false); // don't make frontmost
 683
 684         if ( doResize )
 685             ::SizeWindow((WindowRef)m_macWindow, m_width, m_height  , true);
 686
 687         // the OS takes care of invalidating and erasing the new area so we only have to
 688         // take care of refreshing for full repaints
 689
 690         if ( doResize && !HasFlag(wxNO_FULL_REPAINT_ON_RESIZE) )
 691             Refresh() ;
 692
 693
 694         if ( IsKindOf( CLASSINFO( wxFrame ) ) )
 695         {
 696             wxFrame* frame = (wxFrame*) this ;
 697             frame->PositionStatusBar();
 698             frame->PositionToolBar();
 699         }
 700         if ( doMove )
 701             wxWindowMac::MacTopLevelWindowChangedPosition() ; // like this only children will be notified
 702
 703         MacRepositionScrollBars() ;
 704         if ( doMove )
 705         {
 706             wxPoint point(m_x, m_y);
 707             wxMoveEvent event(point, m_windowId);
 708             event.SetEventObject(this);
 709             GetEventHandler()->ProcessEvent(event) ;
 710         }
 711         if ( doResize )
 712         {
 713              MacRepositionScrollBars() ;
 714              wxSize size(m_width, m_height);
 715              wxSizeEvent event(size, m_windowId);
 716              event.SetEventObject(this);
 717              GetEventHandler()->ProcessEvent(event);
 718         }
 719     }
 720
 721 }
 722
 723 /*
 724  * Invalidation Mechanism
 725  *
 726  * The update mechanism reflects exactely the windows mechanism
 727  * the rect gets added to the window invalidate region, if the eraseBackground flag
 728  * has been true for any part of the update rgn the background is erased in the entire region
 729  * not just in the specified rect.
 730  *
 731  * In order to achive this, we also have an internal m_macNoEraseUpdateRgn, all rects that have
 732  * the eraseBackground flag set to false are also added to this rgn. upon receiving an update event
 733  * the update rgn is compared to the m_macNoEraseUpdateRgn and in case they differ, every window
 734  * will get the eraseBackground event first
 735  */
 736
 737 void wxTopLevelWindowMac::MacInvalidate( const WXRECTPTR rect, bool eraseBackground )
 738 {
 739   GrafPtr formerPort ;
 740   GetPort( &formerPort ) ;
 741   SetPortWindowPort( (WindowRef)m_macWindow ) ;
 742
 743   m_macNeedsErasing |= eraseBackground ;
 744
 745   // if we already know that we will have to erase, there's no need to track the rest
 746   if ( !m_macNeedsErasing)
 747   {
 748     // we end only here if eraseBackground is false
 749     // if we already have a difference between m_macNoEraseUpdateRgn and UpdateRgn
 750     // we will have to erase anyway
 751
 752     RgnHandle       updateRgn = NewRgn();
 753     RgnHandle       diffRgn = NewRgn() ;
 754     if ( updateRgn && diffRgn )
 755     {
 756         GetWindowUpdateRgn( (WindowRef)m_macWindow , updateRgn );
 757         Point pt = {0,0} ;
 758         LocalToGlobal( &pt ) ;
 759         OffsetRgn( updateRgn , -pt.h , -pt.v ) ;
 760         DiffRgn( updateRgn , (RgnHandle) m_macNoEraseUpdateRgn , diffRgn ) ;
 761         if ( !EmptyRgn( diffRgn ) )
 762         {
 763             m_macNeedsErasing = true ;
 764         }
 765     }
 766     if ( updateRgn )
 767         DisposeRgn( updateRgn );
 768     if ( diffRgn )
 769         DisposeRgn( diffRgn );
 770
 771     if ( !m_macNeedsErasing )
 772     {
 773       RgnHandle rectRgn = NewRgn() ;
 774       SetRectRgn( rectRgn , ((Rect*)rect)->left , ((Rect*)rect)->top , ((Rect*)rect)->right , ((Rect*)rect)->bottom ) ;
 775       UnionRgn( (RgnHandle) m_macNoEraseUpdateRgn , rectRgn , (RgnHandle) m_macNoEraseUpdateRgn ) ;
 776       DisposeRgn( rectRgn ) ;
 777     }
 778   }
 779   InvalWindowRect( (WindowRef)m_macWindow , (Rect*)rect ) ;
 780   // turn this on to debug the refreshing cycle
 781 #if wxMAC_DEBUG_REDRAW
 782   PaintRect( rect ) ;
 783 #endif
 784   SetPort( formerPort ) ;
 785 }
 786