src/mac/carbon/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     wxTopLevelWindows.DeleteObject(this);
 175
 176     if ( wxModelessWindows.Find(this) )
 177         wxModelessWindows.DeleteObject(this);
 178
 179     // If this is the last top-level window, exit.
 180     if ( wxTheApp && (wxTopLevelWindows.Number() == 0) )
 181     {
 182         wxTheApp->SetTopWindow(NULL);
 183
 184         if ( wxTheApp->GetExitOnFrameDelete() )
 185         {
 186           wxTheApp->ExitMainLoop() ;
 187         }
 188     }
 189     DisposeRgn( (RgnHandle) m_macNoEraseUpdateRgn ) ;
 190 }
 191
 192
 193 // ----------------------------------------------------------------------------
 194 // wxTopLevelWindowMac maximize/minimize
 195 // ----------------------------------------------------------------------------
 196
 197 void wxTopLevelWindowMac::Maximize(bool maximize)
 198 {
 199     // not available on mac
 200 }
 201
 202 bool wxTopLevelWindowMac::IsMaximized() const
 203 {
 204     return false ;
 205 }
 206
 207 void wxTopLevelWindowMac::Iconize(bool iconize)
 208 {
 209     // not available on mac
 210 }
 211
 212 bool wxTopLevelWindowMac::IsIconized() const
 213 {
 214     // mac dialogs cannot be iconized
 215     return FALSE;
 216 }
 217
 218 void wxTopLevelWindowMac::Restore()
 219 {
 220     // not available on mac
 221 }
 222
 223 // ----------------------------------------------------------------------------
 224 // wxTopLevelWindowMac misc
 225 // ----------------------------------------------------------------------------
 226
 227 void wxTopLevelWindowMac::SetIcon(const wxIcon& icon)
 228 {
 229     // this sets m_icon
 230     wxTopLevelWindowBase::SetIcon(icon);
 231 }
 232
 233 #if TARGET_CARBON
 234
 235 EventHandlerUPP wxMacWindowEventHandlerUPP = NULL ;
 236
 237 extern long wxMacTranslateKey(unsigned char key, unsigned char code) ;
 238
 239 pascal OSStatus wxMacWindowEventHandler( EventHandlerCallRef handler , EventRef event , void *data )
 240 {
 241     OSStatus result = eventNotHandledErr ;
 242     EventRecord rec ;
 243     switch ( GetEventClass( event ) )
 244     {
 245         case kEventClassTextInput :
 246             if ( wxMacConvertEventToRecord( event , &rec ) )
 247             {
 248                 short keycode ;
 249                 short keychar ;
 250                 keychar = short(rec.message & charCodeMask);
 251                 keycode = short(rec.message & keyCodeMask) >> 8 ;
 252                 long keyval = wxMacTranslateKey(keychar, keycode) ;
 253                 wxWindow* focus = wxWindow::FindFocus() ;
 254
 255                 if ( (focus != NULL) && wxTheApp->MacSendKeyDownEvent( focus , keyval , rec.modifiers , rec.when , rec.where.h , rec.where.v ) )
 256                 {
 257                     // was handled internally
 258                     result = noErr ;
 259                 }
 260             }
 261             break ;
 262         default :
 263             break ;
 264     }
 265     return result ;
 266 }
 267
 268 #endif
 269
 270 void wxTopLevelWindowMac::MacInstallEventHandler()
 271 {
 272 #if TARGET_CARBON
 273         if ( wxMacWindowEventHandlerUPP == NULL )
 274         {
 275             wxMacWindowEventHandlerUPP = NewEventHandlerUPP( wxMacWindowEventHandler ) ;
 276         }
 277
 278         static const EventTypeSpec eventList[] =
 279         {
 280             { kEventClassTextInput, kEventTextInputUnicodeForKeyEvent }
 281         } ;
 282         if ( m_macEventHandler )
 283         {
 284         ::RemoveEventHandler((EventHandlerRef) m_macEventHandler);
 285         m_macEventHandler = NULL ;
 286     }
 287         InstallWindowEventHandler(MAC_WXHWND(m_macWindow), wxMacWindowEventHandlerUPP, WXSIZEOF(eventList), eventList, this, &((EventHandlerRef)m_macEventHandler));
 288 #endif
 289 }
 290
 291 void  wxTopLevelWindowMac::MacCreateRealWindow( const wxString& title,
 292            const wxPoint& pos,
 293            const wxSize& size,
 294            long style,
 295            const wxString& name )
 296 {
 297   SetName(name);
 298   m_windowStyle = style;
 299   m_isShown = FALSE;
 300
 301   // create frame.
 302
 303     Rect theBoundsRect;
 304
 305   m_x = (int)pos.x;
 306   m_y = (int)pos.y;
 307   if ( m_y < 50 )
 308     m_y = 50 ;
 309   if ( m_x < 20 )
 310     m_x = 20 ;
 311
 312   m_width = size.x;
 313     if (m_width == -1)
 314         m_width = 20;
 315   m_height = size.y;
 316     if (m_height == -1)
 317         m_height = 20;
 318
 319     ::SetRect(&theBoundsRect, m_x, m_y , m_x + m_width, m_y + m_height);
 320
 321     // translate the window attributes in the appropriate window class and attributes
 322
 323     WindowClass wclass = 0;
 324     WindowAttributes attr = kWindowNoAttributes ;
 325
 326     if ( HasFlag( wxFRAME_TOOL_WINDOW) )
 327     {
 328         if (
 329             HasFlag( wxMINIMIZE_BOX ) || HasFlag( wxMAXIMIZE_BOX ) ||
 330             HasFlag( wxSYSTEM_MENU ) || HasFlag( wxCAPTION ) ||
 331             HasFlag(wxTINY_CAPTION_HORIZ) ||  HasFlag(wxTINY_CAPTION_VERT)
 332              )
 333         {
 334             wclass = kFloatingWindowClass ;
 335             if ( HasFlag(wxTINY_CAPTION_VERT) )
 336             {
 337                 attr |= kWindowSideTitlebarAttribute ;
 338             }
 339         }
 340         else
 341         {
 342             wclass = kPlainWindowClass ;
 343         }
 344     }
 345     else if ( HasFlag( wxCAPTION ) )
 346     {
 347         if ( HasFlag( wxDIALOG_MODAL ) )
 348         {
 349             wclass = kDocumentWindowClass ; // kMovableModalWindowClass ;
 350         }
 351         else
 352         {
 353             wclass = kDocumentWindowClass ;
 354         }
 355     }
 356     else
 357     {
 358         if ( HasFlag( wxMINIMIZE_BOX ) || HasFlag( wxMAXIMIZE_BOX ) ||
 359              HasFlag( wxSYSTEM_MENU ) )
 360         {
 361             wclass = kDocumentWindowClass ;
 362         }
 363         else
 364         {
 365             wclass = kPlainWindowClass ;
 366         }
 367     }
 368
 369     if ( HasFlag( wxMINIMIZE_BOX ) || HasFlag( wxMAXIMIZE_BOX ) )
 370     {
 371         attr |= kWindowFullZoomAttribute ;
 372         attr |= kWindowCollapseBoxAttribute ;
 373     }
 374     if ( HasFlag( wxRESIZE_BORDER ) )
 375     {
 376         attr |= kWindowResizableAttribute ;
 377     }
 378     if ( HasFlag( wxSYSTEM_MENU ) )
 379     {
 380         attr |= kWindowCloseBoxAttribute ;
 381     }
 382
 383     ::CreateNewWindow( wclass , attr , &theBoundsRect , (WindowRef*)&m_macWindow ) ;
 384     wxAssociateWinWithMacWindow( m_macWindow , this ) ;
 385     wxString label ;
 386     if( wxApp::s_macDefaultEncodingIsPC )
 387         label = wxMacMakeMacStringFromPC( title ) ;
 388     else
 389         label = title ;
 390     UMASetWTitleC( (WindowRef)m_macWindow , label ) ;
 391     ::CreateRootControl( (WindowRef)m_macWindow , (ControlHandle*)&m_macRootControl ) ;
 392     MacInstallEventHandler() ;
 393
 394     m_macFocus = NULL ;
 395 }
 396
 397 void wxTopLevelWindowMac::MacGetPortParams(WXPOINTPTR localOrigin, WXRECTPTR clipRect, WXHWND *window  , wxWindowMac** rootwin)
 398 {
 399     ((Point*)localOrigin)->h = 0;
 400     ((Point*)localOrigin)->v = 0;
 401     ((Rect*)clipRect)->left = 0;
 402     ((Rect*)clipRect)->top = 0;
 403     ((Rect*)clipRect)->right = m_width;
 404     ((Rect*)clipRect)->bottom = m_height;
 405     *window = m_macWindow ;
 406     *rootwin = this ;
 407 }
 408
 409 void wxTopLevelWindowMac::Clear()
 410 {
 411   wxWindow::Clear() ;
 412 }
 413
 414 WXWidget wxTopLevelWindowMac::MacGetContainerForEmbedding()
 415 {
 416     return m_macRootControl ;
 417 }
 418
 419
 420 void wxTopLevelWindowMac::MacUpdate( long timestamp)
 421 {
 422
 423     wxMacPortStateHelper help( (GrafPtr) GetWindowPort( (WindowRef) m_macWindow) ) ;
 424
 425     BeginUpdate( (WindowRef)m_macWindow ) ;
 426
 427     RgnHandle       updateRgn = NewRgn();
 428     RgnHandle       diffRgn = NewRgn() ;
 429     if ( updateRgn && diffRgn )
 430     {
 431         GetPortVisibleRegion( GetWindowPort( (WindowRef)m_macWindow ), updateRgn );
 432         DiffRgn( updateRgn , (RgnHandle) m_macNoEraseUpdateRgn , diffRgn ) ;
 433         if ( !EmptyRgn( updateRgn ) )
 434         {
 435             MacRedraw( updateRgn , timestamp , m_macNeedsErasing || !EmptyRgn( diffRgn )  ) ;
 436         }
 437     }
 438     if ( updateRgn )
 439         DisposeRgn( updateRgn );
 440     if ( diffRgn )
 441         DisposeRgn( diffRgn );
 442     EndUpdate( (WindowRef)m_macWindow ) ;
 443     SetEmptyRgn( (RgnHandle) m_macNoEraseUpdateRgn ) ;
 444     m_macNeedsErasing = false ;
 445 }
 446
 447
 448 // Raise the window to the top of the Z order
 449 void wxTopLevelWindowMac::Raise()
 450 {
 451     ::BringToFront( (WindowRef)m_macWindow ) ;
 452 }
 453
 454 // Lower the window to the bottom of the Z order
 455 void wxTopLevelWindowMac::Lower()
 456 {
 457     ::SendBehind( (WindowRef)m_macWindow , NULL ) ;
 458 }
 459
 460 void wxTopLevelWindowMac::MacFireMouseEvent( WXEVENTREF evr )
 461 {
 462     EventRecord *ev = (EventRecord*) evr ;
 463     wxMouseEvent event(wxEVT_LEFT_DOWN);
 464     bool isDown = !(ev->modifiers & btnState) ; // 1 is for up
 465     bool controlDown = ev->modifiers & controlKey ; // for simulating right mouse
 466
 467     event.m_leftDown = isDown && !controlDown;
 468
 469     event.m_middleDown = FALSE;
 470     event.m_rightDown = isDown && controlDown;
 471
 472     if ( ev->what == mouseDown )
 473     {
 474         if ( controlDown )
 475             event.SetEventType(wxEVT_RIGHT_DOWN ) ;
 476         else
 477             event.SetEventType(wxEVT_LEFT_DOWN ) ;
 478     }
 479     else if ( ev->what == mouseUp )
 480     {
 481         if ( controlDown )
 482             event.SetEventType(wxEVT_RIGHT_UP ) ;
 483         else
 484             event.SetEventType(wxEVT_LEFT_UP ) ;
 485     }
 486     else
 487     {
 488         event.SetEventType(wxEVT_MOTION ) ;
 489     }
 490
 491     event.m_shiftDown = ev->modifiers & shiftKey;
 492     event.m_controlDown = ev->modifiers & controlKey;
 493     event.m_altDown = ev->modifiers & optionKey;
 494     event.m_metaDown = ev->modifiers & cmdKey;
 495
 496     Point       localwhere = ev->where ;
 497
 498     GrafPtr     port ;
 499     ::GetPort( &port ) ;
 500     ::SetPort( UMAGetWindowPort( (WindowRef)m_macWindow ) ) ;
 501     ::GlobalToLocal( &localwhere ) ;
 502     ::SetPort( port ) ;
 503
 504     if ( ev->what == mouseDown )
 505     {
 506         if ( ev->when - gs_lastWhen <= GetDblTime() )
 507         {
 508             if ( abs( localwhere.h - gs_lastWhere.h ) < 3 && abs( localwhere.v - gs_lastWhere.v ) < 3 )
 509             {
 510                 // This is not right if the second mouse down
 511                 // event occured in a differen window. We
 512                 // correct this in MacDispatchMouseEvent.
 513                 if ( controlDown )
 514                     event.SetEventType(wxEVT_RIGHT_DCLICK ) ;
 515                 else
 516                     event.SetEventType(wxEVT_LEFT_DCLICK ) ;
 517             }
 518             gs_lastWhen = 0 ;
 519         }
 520         else
 521         {
 522             gs_lastWhen = ev->when ;
 523         }
 524         gs_lastWhere = localwhere ;
 525     }
 526
 527     event.m_x = localwhere.h;
 528     event.m_y = localwhere.v;
 529     event.m_x += m_x;
 530     event.m_y += m_y;
 531
 532     event.m_timeStamp = ev->when;
 533     event.SetEventObject(this);
 534     if ( wxTheApp->s_captureWindow )
 535     {
 536         int x = event.m_x ;
 537         int y = event.m_y ;
 538         wxTheApp->s_captureWindow->ScreenToClient( &x , &y ) ;
 539         event.m_x = x ;
 540         event.m_y = y ;
 541         event.SetEventObject( wxTheApp->s_captureWindow ) ;
 542         wxTheApp->s_captureWindow->GetEventHandler()->ProcessEvent( event ) ;
 543
 544         if ( ev->what == mouseUp )
 545         {
 546             wxTheApp->s_captureWindow = NULL ;
 547             if ( wxBusyCursorCount == 0 )
 548             {
 549                 m_cursor.MacInstall() ;
 550             }
 551         }
 552     }
 553     else
 554     {
 555         MacDispatchMouseEvent( event ) ;
 556     }
 557 }
 558
 559 void wxTopLevelWindowMac::MacMouseDown( WXEVENTREF ev , short part)
 560 {
 561     MacFireMouseEvent( ev ) ;
 562 }
 563
 564 void wxTopLevelWindowMac::MacMouseUp( WXEVENTREF ev , short part)
 565 {
 566     switch (part)
 567     {
 568         case inContent:
 569             {
 570                 MacFireMouseEvent( ev ) ;
 571             }
 572             break ;
 573     }
 574 }
 575
 576 void wxTopLevelWindowMac::MacMouseMoved( WXEVENTREF ev , short part)
 577 {
 578     switch (part)
 579     {
 580         case inContent:
 581             {
 582                 MacFireMouseEvent( ev ) ;
 583             }
 584             break ;
 585     }
 586 }
 587 void wxTopLevelWindowMac::MacActivate( WXEVENTREF ev , bool inIsActivating )
 588 {
 589     wxActivateEvent event(wxEVT_ACTIVATE, inIsActivating , m_windowId);
 590     event.m_timeStamp = ((EventRecord*)ev)->when ;
 591     event.SetEventObject(this);
 592
 593     GetEventHandler()->ProcessEvent(event);
 594
 595     UMAHighlightAndActivateWindow( (WindowRef)m_macWindow , inIsActivating ) ;
 596
 597     MacSuperEnabled( inIsActivating ) ;
 598 }
 599
 600 void wxTopLevelWindowMac::MacKeyDown( WXEVENTREF ev )
 601 {
 602 }
 603
 604 void wxTopLevelWindowMac::SetTitle(const wxString& title)
 605 {
 606     wxWindow::SetTitle( title ) ;
 607
 608     wxString label ;
 609
 610     if( wxApp::s_macDefaultEncodingIsPC )
 611         label = wxMacMakeMacStringFromPC( m_label ) ;
 612     else
 613         label = m_label ;
 614
 615     UMASetWTitleC( (WindowRef)m_macWindow , label ) ;
 616 }
 617
 618 bool wxTopLevelWindowMac::Show(bool show)
 619 {
 620     if ( !wxWindow::Show(show) )
 621         return FALSE;
 622
 623     if (show)
 624     {
 625       ::ShowWindow( (WindowRef)m_macWindow ) ;
 626       ::SelectWindow( (WindowRef)m_macWindow ) ;
 627       // no need to generate events here, they will get them triggered by macos
 628       // actually they should be , but apparently they are not
 629       wxSize size(m_width, m_height);
 630       wxSizeEvent event(size, m_windowId);
 631       event.SetEventObject(this);
 632       GetEventHandler()->ProcessEvent(event);
 633     }
 634     else
 635     {
 636       ::HideWindow( (WindowRef)m_macWindow ) ;
 637     }
 638
 639     if ( !show )
 640     {
 641     }
 642     else
 643     {
 644         Refresh() ;
 645     }
 646
 647     return TRUE;
 648 }
 649
 650 void wxTopLevelWindowMac::DoMoveWindow(int x, int y, int width, int height)
 651 {
 652     int former_x = m_x ;
 653     int former_y = m_y ;
 654     int former_w = m_width ;
 655     int former_h = m_height ;
 656
 657   int actualWidth = width;
 658   int actualHeight = height;
 659   int actualX = x;
 660   int actualY = y;
 661
 662     if ((m_minWidth != -1) && (actualWidth < m_minWidth))
 663         actualWidth = m_minWidth;
 664     if ((m_minHeight != -1) && (actualHeight < m_minHeight))
 665         actualHeight = m_minHeight;
 666     if ((m_maxWidth != -1) && (actualWidth > m_maxWidth))
 667         actualWidth = m_maxWidth;
 668     if ((m_maxHeight != -1) && (actualHeight > m_maxHeight))
 669         actualHeight = m_maxHeight;
 670
 671     bool doMove = false ;
 672     bool doResize = false ;
 673
 674     if ( actualX != former_x || actualY != former_y )
 675     {
 676         doMove = true ;
 677     }
 678     if ( actualWidth != former_w || actualHeight != former_h )
 679     {
 680         doResize = true ;
 681     }
 682
 683     if ( doMove || doResize )
 684     {
 685         m_x = actualX ;
 686         m_y = actualY ;
 687         m_width = actualWidth ;
 688         m_height = actualHeight ;
 689
 690         if ( doMove )
 691             ::MoveWindow((WindowRef)m_macWindow, m_x, m_y  , false); // don't make frontmost
 692
 693         if ( doResize )
 694             ::SizeWindow((WindowRef)m_macWindow, m_width, m_height  , true);
 695
 696         // the OS takes care of invalidating and erasing the new area
 697         // we have erased the old one
 698
 699         if ( IsKindOf( CLASSINFO( wxFrame ) ) )
 700         {
 701             wxFrame* frame = (wxFrame*) this ;
 702             frame->PositionStatusBar();
 703             frame->PositionToolBar();
 704         }
 705         if ( doMove )
 706             wxWindowMac::MacTopLevelWindowChangedPosition() ; // like this only children will be notified
 707
 708         MacRepositionScrollBars() ;
 709         if ( doMove )
 710         {
 711             wxPoint point(m_x, m_y);
 712             wxMoveEvent event(point, m_windowId);
 713             event.SetEventObject(this);
 714             GetEventHandler()->ProcessEvent(event) ;
 715         }
 716         if ( doResize )
 717         {
 718              MacRepositionScrollBars() ;
 719              wxSize size(m_width, m_height);
 720              wxSizeEvent event(size, m_windowId);
 721              event.SetEventObject(this);
 722              GetEventHandler()->ProcessEvent(event);
 723         }
 724     }
 725
 726 }
 727
 728 /*
 729  * Invalidation Mechanism
 730  *
 731  * The update mechanism reflects exactely the windows mechanism
 732  * the rect gets added to the window invalidate region, if the eraseBackground flag
 733  * has been true for any part of the update rgn the background is erased in the entire region
 734  * not just in the specified rect.
 735  *
 736  * In order to achive this, we also have an internal m_macNoEraseUpdateRgn, all rects that have
 737  * the eraseBackground flag set to false are also added to this rgn. upon receiving an update event
 738  * the update rgn is compared to the m_macNoEraseUpdateRgn and in case they differ, every window
 739  * will get the eraseBackground event first
 740  */
 741
 742 void wxTopLevelWindowMac::MacInvalidate( const WXRECTPTR rect, bool eraseBackground )
 743 {
 744   GrafPtr formerPort ;
 745   GetPort( &formerPort ) ;
 746   SetPortWindowPort( (WindowRef)m_macWindow ) ;
 747
 748   m_macNeedsErasing |= eraseBackground ;
 749
 750   // if we already know that we will have to erase, there's no need to track the rest
 751   if ( !m_macNeedsErasing)
 752   {
 753     // we end only here if eraseBackground is false
 754     // if we already have a difference between m_macNoEraseUpdateRgn and UpdateRgn
 755     // we will have to erase anyway
 756
 757     RgnHandle       updateRgn = NewRgn();
 758     RgnHandle       diffRgn = NewRgn() ;
 759     if ( updateRgn && diffRgn )
 760     {
 761         GetWindowUpdateRgn( (WindowRef)m_macWindow , updateRgn );
 762         Point pt = {0,0} ;
 763         LocalToGlobal( &pt ) ;
 764         OffsetRgn( updateRgn , -pt.h , -pt.v ) ;
 765         DiffRgn( updateRgn , (RgnHandle) m_macNoEraseUpdateRgn , diffRgn ) ;
 766         if ( !EmptyRgn( diffRgn ) )
 767         {
 768             m_macNeedsErasing = true ;
 769         }
 770     }
 771     if ( updateRgn )
 772         DisposeRgn( updateRgn );
 773     if ( diffRgn )
 774         DisposeRgn( diffRgn );
 775
 776     if ( !m_macNeedsErasing )
 777     {
 778       RgnHandle rectRgn = NewRgn() ;
 779       SetRectRgn( rectRgn , ((Rect*)rect)->left , ((Rect*)rect)->top , ((Rect*)rect)->right , ((Rect*)rect)->bottom ) ;
 780       UnionRgn( (RgnHandle) m_macNoEraseUpdateRgn , rectRgn , (RgnHandle) m_macNoEraseUpdateRgn ) ;
 781       DisposeRgn( rectRgn ) ;
 782     }
 783   }
 784   InvalWindowRect( (WindowRef)m_macWindow , (Rect*)rect ) ;
 785   // turn this on to debug the refreshing cycle
 786 #if wxMAC_DEBUG_REDRAW
 787   PaintRect( rect ) ;
 788 #endif
 789   SetPort( formerPort ) ;
 790 }
 791