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                 short keycode ;
 237                 short keychar ;
 238                 keychar = short(rec.message & charCodeMask);
 239                 keycode = short(rec.message & keyCodeMask) >> 8 ;
 240                 wxWindow* focus = wxWindow::FindFocus() ;
 241                 // it is wxWindows Convention to have Ctrl Key Combinations at ASCII char value
 242                 if ( (rec.modifiers & controlKey) && keychar >= 0 && keychar < 0x20 )
 243                 {
 244                     keychar += 0x40 ;
 245                 }
 246                 long keyval = wxMacTranslateKey(keychar, keycode) ;
 247                 if ( (focus != NULL) && wxTheApp->MacSendKeyDownEvent( focus , keyval , rec.modifiers , rec.when , rec.where.h , rec.where.v ) )
 248                 {
 249                     // was handled internally
 250                     result = noErr ;
 251                 }
 252             }
 253             break ;
 254         default :
 255             break ;
 256     }
 257     return result ;
 258 }
 259
 260 #endif
 261
 262 void wxTopLevelWindowMac::MacInstallEventHandler()
 263 {
 264 #if TARGET_CARBON
 265         if ( wxMacWindowEventHandlerUPP == NULL )
 266         {
 267             wxMacWindowEventHandlerUPP = NewEventHandlerUPP( wxMacWindowEventHandler ) ;
 268         }
 269
 270         static const EventTypeSpec eventList[] =
 271         {
 272             { kEventClassTextInput, kEventTextInputUnicodeForKeyEvent }
 273         } ;
 274         if ( m_macEventHandler )
 275         {
 276         ::RemoveEventHandler((EventHandlerRef) m_macEventHandler);
 277         m_macEventHandler = NULL ;
 278     }
 279         InstallWindowEventHandler(MAC_WXHWND(m_macWindow), wxMacWindowEventHandlerUPP, WXSIZEOF(eventList), eventList, this, &((EventHandlerRef)m_macEventHandler));
 280 #endif
 281 }
 282
 283 void  wxTopLevelWindowMac::MacCreateRealWindow( const wxString& title,
 284            const wxPoint& pos,
 285            const wxSize& size,
 286            long style,
 287            const wxString& name )
 288 {
 289   SetName(name);
 290   m_windowStyle = style;
 291   m_isShown = FALSE;
 292
 293   // create frame.
 294
 295     Rect theBoundsRect;
 296
 297   m_x = (int)pos.x;
 298   m_y = (int)pos.y;
 299   if ( m_y < 50 )
 300     m_y = 50 ;
 301   if ( m_x < 20 )
 302     m_x = 20 ;
 303
 304   m_width = size.x;
 305     if (m_width == -1)
 306         m_width = 20;
 307   m_height = size.y;
 308     if (m_height == -1)
 309         m_height = 20;
 310
 311     ::SetRect(&theBoundsRect, m_x, m_y , m_x + m_width, m_y + m_height);
 312
 313     // translate the window attributes in the appropriate window class and attributes
 314
 315     WindowClass wclass = 0;
 316     WindowAttributes attr = kWindowNoAttributes ;
 317
 318     if ( HasFlag( wxFRAME_TOOL_WINDOW) )
 319     {
 320         if (
 321             HasFlag( wxMINIMIZE_BOX ) || HasFlag( wxMAXIMIZE_BOX ) ||
 322             HasFlag( wxSYSTEM_MENU ) || HasFlag( wxCAPTION ) ||
 323             HasFlag(wxTINY_CAPTION_HORIZ) ||  HasFlag(wxTINY_CAPTION_VERT)
 324              )
 325         {
 326             wclass = kFloatingWindowClass ;
 327             if ( HasFlag(wxTINY_CAPTION_VERT) )
 328             {
 329                 attr |= kWindowSideTitlebarAttribute ;
 330             }
 331         }
 332         else
 333         {
 334             wclass = kPlainWindowClass ;
 335         }
 336     }
 337     else if ( HasFlag( wxCAPTION ) )
 338     {
 339         if ( HasFlag( wxDIALOG_MODAL ) )
 340         {
 341             wclass = kDocumentWindowClass ; // kMovableModalWindowClass ;
 342         }
 343         else
 344         {
 345             wclass = kDocumentWindowClass ;
 346         }
 347     }
 348     else
 349     {
 350         if ( HasFlag( wxMINIMIZE_BOX ) || HasFlag( wxMAXIMIZE_BOX ) ||
 351              HasFlag( wxSYSTEM_MENU ) )
 352         {
 353             wclass = kDocumentWindowClass ;
 354         }
 355         else
 356         {
 357             wclass = kPlainWindowClass ;
 358         }
 359     }
 360
 361     if ( HasFlag( wxMINIMIZE_BOX ) || HasFlag( wxMAXIMIZE_BOX ) )
 362     {
 363         attr |= kWindowFullZoomAttribute ;
 364         attr |= kWindowCollapseBoxAttribute ;
 365     }
 366     if ( HasFlag( wxRESIZE_BORDER ) )
 367     {
 368         attr |= kWindowResizableAttribute ;
 369     }
 370     if ( HasFlag( wxSYSTEM_MENU ) )
 371     {
 372         attr |= kWindowCloseBoxAttribute ;
 373     }
 374
 375     ::CreateNewWindow( wclass , attr , &theBoundsRect , (WindowRef*)&m_macWindow ) ;
 376     wxAssociateWinWithMacWindow( m_macWindow , this ) ;
 377     wxString label ;
 378     if( wxApp::s_macDefaultEncodingIsPC )
 379         label = wxMacMakeMacStringFromPC( title ) ;
 380     else
 381         label = title ;
 382     UMASetWTitleC( (WindowRef)m_macWindow , label ) ;
 383     ::CreateRootControl( (WindowRef)m_macWindow , (ControlHandle*)&m_macRootControl ) ;
 384     MacInstallEventHandler() ;
 385
 386     m_macFocus = NULL ;
 387 }
 388
 389 void wxTopLevelWindowMac::MacGetPortParams(WXPOINTPTR localOrigin, WXRECTPTR clipRect, WXHWND *window  , wxWindowMac** rootwin)
 390 {
 391     ((Point*)localOrigin)->h = 0;
 392     ((Point*)localOrigin)->v = 0;
 393     ((Rect*)clipRect)->left = 0;
 394     ((Rect*)clipRect)->top = 0;
 395     ((Rect*)clipRect)->right = m_width;
 396     ((Rect*)clipRect)->bottom = m_height;
 397     *window = m_macWindow ;
 398     *rootwin = this ;
 399 }
 400
 401 void wxTopLevelWindowMac::Clear()
 402 {
 403   wxWindow::Clear() ;
 404 }
 405
 406 WXWidget wxTopLevelWindowMac::MacGetContainerForEmbedding()
 407 {
 408     return m_macRootControl ;
 409 }
 410
 411
 412 void wxTopLevelWindowMac::MacUpdate( long timestamp)
 413 {
 414
 415     wxMacPortStateHelper help( (GrafPtr) GetWindowPort( (WindowRef) m_macWindow) ) ;
 416
 417     BeginUpdate( (WindowRef)m_macWindow ) ;
 418
 419     RgnHandle       updateRgn = NewRgn();
 420     RgnHandle       diffRgn = NewRgn() ;
 421     if ( updateRgn && diffRgn )
 422     {
 423         GetPortVisibleRegion( GetWindowPort( (WindowRef)m_macWindow ), updateRgn );
 424         DiffRgn( updateRgn , (RgnHandle) m_macNoEraseUpdateRgn , diffRgn ) ;
 425         if ( !EmptyRgn( updateRgn ) )
 426         {
 427             MacRedraw( updateRgn , timestamp , m_macNeedsErasing || !EmptyRgn( diffRgn )  ) ;
 428         }
 429     }
 430     if ( updateRgn )
 431         DisposeRgn( updateRgn );
 432     if ( diffRgn )
 433         DisposeRgn( diffRgn );
 434     EndUpdate( (WindowRef)m_macWindow ) ;
 435     SetEmptyRgn( (RgnHandle) m_macNoEraseUpdateRgn ) ;
 436     m_macNeedsErasing = false ;
 437 }
 438
 439
 440 // Raise the window to the top of the Z order
 441 void wxTopLevelWindowMac::Raise()
 442 {
 443     ::BringToFront( (WindowRef)m_macWindow ) ;
 444 }
 445
 446 // Lower the window to the bottom of the Z order
 447 void wxTopLevelWindowMac::Lower()
 448 {
 449     ::SendBehind( (WindowRef)m_macWindow , NULL ) ;
 450 }
 451
 452 void wxTopLevelWindowMac::MacFireMouseEvent( WXEVENTREF evr )
 453 {
 454     EventRecord *ev = (EventRecord*) evr ;
 455     wxMouseEvent event(wxEVT_LEFT_DOWN);
 456     bool isDown = !(ev->modifiers & btnState) ; // 1 is for up
 457     bool controlDown = ev->modifiers & controlKey ; // for simulating right mouse
 458
 459     event.m_leftDown = isDown && !controlDown;
 460
 461     event.m_middleDown = FALSE;
 462     event.m_rightDown = isDown && controlDown;
 463
 464     if ( ev->what == mouseDown )
 465     {
 466         if ( controlDown )
 467             event.SetEventType(wxEVT_RIGHT_DOWN ) ;
 468         else
 469             event.SetEventType(wxEVT_LEFT_DOWN ) ;
 470     }
 471     else if ( ev->what == mouseUp )
 472     {
 473         if ( controlDown )
 474             event.SetEventType(wxEVT_RIGHT_UP ) ;
 475         else
 476             event.SetEventType(wxEVT_LEFT_UP ) ;
 477     }
 478     else
 479     {
 480         event.SetEventType(wxEVT_MOTION ) ;
 481     }
 482
 483     event.m_shiftDown = ev->modifiers & shiftKey;
 484     event.m_controlDown = ev->modifiers & controlKey;
 485     event.m_altDown = ev->modifiers & optionKey;
 486     event.m_metaDown = ev->modifiers & cmdKey;
 487
 488     Point       localwhere = ev->where ;
 489
 490     GrafPtr     port ;
 491     ::GetPort( &port ) ;
 492     ::SetPort( UMAGetWindowPort( (WindowRef)m_macWindow ) ) ;
 493     ::GlobalToLocal( &localwhere ) ;
 494     ::SetPort( port ) ;
 495
 496     if ( ev->what == mouseDown )
 497     {
 498         if ( ev->when - gs_lastWhen <= GetDblTime() )
 499         {
 500             if ( abs( localwhere.h - gs_lastWhere.h ) < 3 && abs( localwhere.v - gs_lastWhere.v ) < 3 )
 501             {
 502                 // This is not right if the second mouse down
 503                 // event occured in a differen window. We
 504                 // correct this in MacDispatchMouseEvent.
 505                 if ( controlDown )
 506                     event.SetEventType(wxEVT_RIGHT_DCLICK ) ;
 507                 else
 508                     event.SetEventType(wxEVT_LEFT_DCLICK ) ;
 509             }
 510             gs_lastWhen = 0 ;
 511         }
 512         else
 513         {
 514             gs_lastWhen = ev->when ;
 515         }
 516         gs_lastWhere = localwhere ;
 517     }
 518
 519     event.m_x = localwhere.h;
 520     event.m_y = localwhere.v;
 521     event.m_x += m_x;
 522     event.m_y += m_y;
 523
 524     event.m_timeStamp = ev->when;
 525     event.SetEventObject(this);
 526     if ( wxTheApp->s_captureWindow )
 527     {
 528         int x = event.m_x ;
 529         int y = event.m_y ;
 530         wxTheApp->s_captureWindow->ScreenToClient( &x , &y ) ;
 531         event.m_x = x ;
 532         event.m_y = y ;
 533         event.SetEventObject( wxTheApp->s_captureWindow ) ;
 534         wxTheApp->s_captureWindow->GetEventHandler()->ProcessEvent( event ) ;
 535
 536         if ( ev->what == mouseUp )
 537         {
 538             wxTheApp->s_captureWindow = NULL ;
 539             if ( wxBusyCursorCount == 0 )
 540             {
 541                 m_cursor.MacInstall() ;
 542             }
 543         }
 544     }
 545     else
 546     {
 547         MacDispatchMouseEvent( event ) ;
 548     }
 549 }
 550
 551 void wxTopLevelWindowMac::MacMouseDown( WXEVENTREF ev , short part)
 552 {
 553     MacFireMouseEvent( ev ) ;
 554 }
 555
 556 void wxTopLevelWindowMac::MacMouseUp( WXEVENTREF ev , short part)
 557 {
 558     switch (part)
 559     {
 560         case inContent:
 561             {
 562                 MacFireMouseEvent( ev ) ;
 563             }
 564             break ;
 565     }
 566 }
 567
 568 void wxTopLevelWindowMac::MacMouseMoved( WXEVENTREF ev , short part)
 569 {
 570     switch (part)
 571     {
 572         case inContent:
 573             {
 574                 MacFireMouseEvent( ev ) ;
 575             }
 576             break ;
 577     }
 578 }
 579 void wxTopLevelWindowMac::MacActivate( WXEVENTREF ev , bool inIsActivating )
 580 {
 581     wxActivateEvent event(wxEVT_ACTIVATE, inIsActivating , m_windowId);
 582     event.m_timeStamp = ((EventRecord*)ev)->when ;
 583     event.SetEventObject(this);
 584
 585     GetEventHandler()->ProcessEvent(event);
 586
 587     UMAHighlightAndActivateWindow( (WindowRef)m_macWindow , inIsActivating ) ;
 588
 589     MacSuperEnabled( inIsActivating ) ;
 590 }
 591
 592 void wxTopLevelWindowMac::MacKeyDown( WXEVENTREF ev )
 593 {
 594 }
 595
 596 void wxTopLevelWindowMac::SetTitle(const wxString& title)
 597 {
 598     wxWindow::SetTitle( title ) ;
 599
 600     wxString label ;
 601
 602     if( wxApp::s_macDefaultEncodingIsPC )
 603         label = wxMacMakeMacStringFromPC( m_label ) ;
 604     else
 605         label = m_label ;
 606
 607     UMASetWTitleC( (WindowRef)m_macWindow , label ) ;
 608 }
 609
 610 bool wxTopLevelWindowMac::Show(bool show)
 611 {
 612     if ( !wxWindow::Show(show) )
 613         return FALSE;
 614
 615     if (show)
 616     {
 617       ::ShowWindow( (WindowRef)m_macWindow ) ;
 618       ::SelectWindow( (WindowRef)m_macWindow ) ;
 619       // no need to generate events here, they will get them triggered by macos
 620       // actually they should be , but apparently they are not
 621       wxSize size(m_width, m_height);
 622       wxSizeEvent event(size, m_windowId);
 623       event.SetEventObject(this);
 624       GetEventHandler()->ProcessEvent(event);
 625     }
 626     else
 627     {
 628       ::HideWindow( (WindowRef)m_macWindow ) ;
 629     }
 630
 631     if ( !show )
 632     {
 633     }
 634     else
 635     {
 636         Refresh() ;
 637     }
 638
 639     return TRUE;
 640 }
 641
 642 void wxTopLevelWindowMac::DoMoveWindow(int x, int y, int width, int height)
 643 {
 644     int former_x = m_x ;
 645     int former_y = m_y ;
 646     int former_w = m_width ;
 647     int former_h = m_height ;
 648
 649   int actualWidth = width;
 650   int actualHeight = height;
 651   int actualX = x;
 652   int actualY = y;
 653
 654     if ((m_minWidth != -1) && (actualWidth < m_minWidth))
 655         actualWidth = m_minWidth;
 656     if ((m_minHeight != -1) && (actualHeight < m_minHeight))
 657         actualHeight = m_minHeight;
 658     if ((m_maxWidth != -1) && (actualWidth > m_maxWidth))
 659         actualWidth = m_maxWidth;
 660     if ((m_maxHeight != -1) && (actualHeight > m_maxHeight))
 661         actualHeight = m_maxHeight;
 662
 663     bool doMove = false ;
 664     bool doResize = false ;
 665
 666     if ( actualX != former_x || actualY != former_y )
 667     {
 668         doMove = true ;
 669     }
 670     if ( actualWidth != former_w || actualHeight != former_h )
 671     {
 672         doResize = true ;
 673     }
 674
 675     if ( doMove || doResize )
 676     {
 677         m_x = actualX ;
 678         m_y = actualY ;
 679         m_width = actualWidth ;
 680         m_height = actualHeight ;
 681
 682         if ( doMove )
 683             ::MoveWindow((WindowRef)m_macWindow, m_x, m_y  , false); // don't make frontmost
 684
 685         if ( doResize )
 686             ::SizeWindow((WindowRef)m_macWindow, m_width, m_height  , true);
 687
 688         // the OS takes care of invalidating and erasing the new area
 689         // we have erased the old one
 690
 691         if ( IsKindOf( CLASSINFO( wxFrame ) ) )
 692         {
 693             wxFrame* frame = (wxFrame*) this ;
 694             frame->PositionStatusBar();
 695             frame->PositionToolBar();
 696         }
 697         if ( doMove )
 698             wxWindowMac::MacTopLevelWindowChangedPosition() ; // like this only children will be notified
 699
 700         MacRepositionScrollBars() ;
 701         if ( doMove )
 702         {
 703             wxPoint point(m_x, m_y);
 704             wxMoveEvent event(point, m_windowId);
 705             event.SetEventObject(this);
 706             GetEventHandler()->ProcessEvent(event) ;
 707         }
 708         if ( doResize )
 709         {
 710              MacRepositionScrollBars() ;
 711              wxSize size(m_width, m_height);
 712              wxSizeEvent event(size, m_windowId);
 713              event.SetEventObject(this);
 714              GetEventHandler()->ProcessEvent(event);
 715         }
 716     }
 717
 718 }
 719
 720 /*
 721  * Invalidation Mechanism
 722  *
 723  * The update mechanism reflects exactely the windows mechanism
 724  * the rect gets added to the window invalidate region, if the eraseBackground flag
 725  * has been true for any part of the update rgn the background is erased in the entire region
 726  * not just in the specified rect.
 727  *
 728  * In order to achive this, we also have an internal m_macNoEraseUpdateRgn, all rects that have
 729  * the eraseBackground flag set to false are also added to this rgn. upon receiving an update event
 730  * the update rgn is compared to the m_macNoEraseUpdateRgn and in case they differ, every window
 731  * will get the eraseBackground event first
 732  */
 733
 734 void wxTopLevelWindowMac::MacInvalidate( const WXRECTPTR rect, bool eraseBackground )
 735 {
 736   GrafPtr formerPort ;
 737   GetPort( &formerPort ) ;
 738   SetPortWindowPort( (WindowRef)m_macWindow ) ;
 739
 740   m_macNeedsErasing |= eraseBackground ;
 741
 742   // if we already know that we will have to erase, there's no need to track the rest
 743   if ( !m_macNeedsErasing)
 744   {
 745     // we end only here if eraseBackground is false
 746     // if we already have a difference between m_macNoEraseUpdateRgn and UpdateRgn
 747     // we will have to erase anyway
 748
 749     RgnHandle       updateRgn = NewRgn();
 750     RgnHandle       diffRgn = NewRgn() ;
 751     if ( updateRgn && diffRgn )
 752     {
 753         GetWindowUpdateRgn( (WindowRef)m_macWindow , updateRgn );
 754         Point pt = {0,0} ;
 755         LocalToGlobal( &pt ) ;
 756         OffsetRgn( updateRgn , -pt.h , -pt.v ) ;
 757         DiffRgn( updateRgn , (RgnHandle) m_macNoEraseUpdateRgn , diffRgn ) ;
 758         if ( !EmptyRgn( diffRgn ) )
 759         {
 760             m_macNeedsErasing = true ;
 761         }
 762     }
 763     if ( updateRgn )
 764         DisposeRgn( updateRgn );
 765     if ( diffRgn )
 766         DisposeRgn( diffRgn );
 767
 768     if ( !m_macNeedsErasing )
 769     {
 770       RgnHandle rectRgn = NewRgn() ;
 771       SetRectRgn( rectRgn , ((Rect*)rect)->left , ((Rect*)rect)->top , ((Rect*)rect)->right , ((Rect*)rect)->bottom ) ;
 772       UnionRgn( (RgnHandle) m_macNoEraseUpdateRgn , rectRgn , (RgnHandle) m_macNoEraseUpdateRgn ) ;
 773       DisposeRgn( rectRgn ) ;
 774     }
 775   }
 776   InvalWindowRect( (WindowRef)m_macWindow , (Rect*)rect ) ;
 777   // turn this on to debug the refreshing cycle
 778 #if wxMAC_DEBUG_REDRAW
 779   PaintRect( rect ) ;
 780 #endif
 781   SetPort( formerPort ) ;
 782 }
 783