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 // ============================================================================
  63 // wxTopLevelWindowMac implementation
  64 // ============================================================================
  65
  66 // ---------------------------------------------------------------------------
  67 // wxWindowMac utility functions
  68 // ---------------------------------------------------------------------------
  69
  70 // Find an item given the Macintosh Window Reference
  71
  72 wxList *wxWinMacWindowList = NULL;
  73 wxTopLevelWindowMac *wxFindWinFromMacWindow(WXWindow inWindowRef)
  74 {
  75     wxNode *node = wxWinMacWindowList->Find((long)inWindowRef);
  76     if (!node)
  77         return NULL;
  78     return (wxTopLevelWindowMac *)node->GetData();
  79 }
  80
  81 void wxAssociateWinWithMacWindow(WXWindow inWindowRef, wxTopLevelWindowMac *win)
  82 {
  83     // adding NULL WindowRef is (first) surely a result of an error and
  84     // (secondly) breaks menu command processing
  85     wxCHECK_RET( inWindowRef != (WindowRef) NULL, "attempt to add a NULL WindowRef to window list" );
  86
  87     if ( !wxWinMacWindowList->Find((long)inWindowRef) )
  88         wxWinMacWindowList->Append((long)inWindowRef, win);
  89 }
  90
  91 void wxRemoveMacWindowAssociation(wxTopLevelWindowMac *win)
  92 {
  93     wxWinMacWindowList->DeleteObject(win);
  94 }
  95
  96
  97 // ----------------------------------------------------------------------------
  98 // wxTopLevelWindowMac creation
  99 // ----------------------------------------------------------------------------
 100
 101 WXHWND wxTopLevelWindowMac::s_macWindowInUpdate = NULL;
 102
 103 void wxTopLevelWindowMac::Init()
 104 {
 105     m_iconized =
 106     m_maximizeOnShow = FALSE;
 107     m_macNoEraseUpdateRgn = NewRgn() ;
 108     m_macNeedsErasing = false ;
 109     m_macWindow = NULL ;
 110     m_macEventHandler = NULL ;
 111 }
 112
 113 class wxMacDeferredWindowDeleter : public wxObject
 114 {
 115 public :
 116     wxMacDeferredWindowDeleter( WindowRef windowRef )
 117     {
 118         m_macWindow = windowRef ;
 119     }
 120     virtual ~wxMacDeferredWindowDeleter()
 121     {
 122         UMADisposeWindow( (WindowRef) m_macWindow ) ;
 123     }
 124  protected :
 125     WindowRef m_macWindow ;
 126 } ;
 127
 128 bool wxTopLevelWindowMac::Create(wxWindow *parent,
 129                                  wxWindowID id,
 130                                  const wxString& title,
 131                                  const wxPoint& pos,
 132                                  const wxSize& size,
 133                                  long style,
 134                                  const wxString& name)
 135 {
 136     // init our fields
 137     Init();
 138
 139     m_windowStyle = style;
 140
 141     SetName(name);
 142
 143     m_windowId = id == -1 ? NewControlId() : id;
 144
 145     wxTopLevelWindows.Append(this);
 146
 147     if ( parent )
 148         parent->AddChild(this);
 149
 150     return TRUE;
 151 }
 152
 153 wxTopLevelWindowMac::~wxTopLevelWindowMac()
 154 {
 155     if ( m_macWindow )
 156     {
 157         wxToolTip::NotifyWindowDelete(m_macWindow) ;
 158         wxPendingDelete.Append( new wxMacDeferredWindowDeleter( (WindowRef) m_macWindow ) ) ;
 159     }
 160
 161 #if TARGET_CARBON
 162     if ( m_macEventHandler )
 163     {
 164         ::RemoveEventHandler((EventHandlerRef) m_macEventHandler);
 165         m_macEventHandler = NULL ;
 166     }
 167 #endif
 168     wxRemoveMacWindowAssociation( this ) ;
 169
 170     if ( wxModelessWindows.Find(this) )
 171         wxModelessWindows.DeleteObject(this);
 172
 173     DisposeRgn( (RgnHandle) m_macNoEraseUpdateRgn ) ;
 174 }
 175
 176
 177 // ----------------------------------------------------------------------------
 178 // wxTopLevelWindowMac maximize/minimize
 179 // ----------------------------------------------------------------------------
 180
 181 void wxTopLevelWindowMac::Maximize(bool maximize)
 182 {
 183     // not available on mac
 184 }
 185
 186 bool wxTopLevelWindowMac::IsMaximized() const
 187 {
 188     return false ;
 189 }
 190
 191 void wxTopLevelWindowMac::Iconize(bool iconize)
 192 {
 193     // not available on mac
 194 }
 195
 196 bool wxTopLevelWindowMac::IsIconized() const
 197 {
 198     // mac dialogs cannot be iconized
 199     return FALSE;
 200 }
 201
 202 void wxTopLevelWindowMac::Restore()
 203 {
 204     // not available on mac
 205 }
 206
 207 // ----------------------------------------------------------------------------
 208 // wxTopLevelWindowMac misc
 209 // ----------------------------------------------------------------------------
 210
 211 void wxTopLevelWindowMac::SetIcon(const wxIcon& icon)
 212 {
 213     // this sets m_icon
 214     wxTopLevelWindowBase::SetIcon(icon);
 215 }
 216
 217 #if TARGET_CARBON
 218
 219 EventHandlerUPP wxMacWindowEventHandlerUPP = NULL ;
 220
 221 extern long wxMacTranslateKey(unsigned char key, unsigned char code) ;
 222
 223 pascal OSStatus wxMacWindowEventHandler( EventHandlerCallRef handler , EventRef event , void *data )
 224 {
 225     OSStatus result = eventNotHandledErr ;
 226     EventRecord rec ;
 227     switch ( GetEventClass( event ) )
 228     {
 229         case kEventClassTextInput :
 230             if ( wxMacConvertEventToRecord( event , &rec ) )
 231             {
 232                         wxTheApp->m_macCurrentEvent = &rec ;
 233                 wxWindow* focus = wxWindow::FindFocus() ;
 234                 if ( (focus != NULL) && !UMAMenuEvent(&rec) && wxTheApp->MacSendKeyDownEvent( focus , rec.message , rec.modifiers , rec.when , rec.where.h , rec.where.v ) )
 235                 {
 236                     // was handled internally
 237                     result = noErr ;
 238                 }
 239             }
 240             break ;
 241         default :
 242             break ;
 243     }
 244     return result ;
 245 }
 246
 247 #endif
 248
 249 void wxTopLevelWindowMac::MacInstallEventHandler()
 250 {
 251 #if TARGET_CARBON
 252         if ( wxMacWindowEventHandlerUPP == NULL )
 253         {
 254             wxMacWindowEventHandlerUPP = NewEventHandlerUPP( wxMacWindowEventHandler ) ;
 255         }
 256
 257         static const EventTypeSpec eventList[] =
 258         {
 259             { kEventClassTextInput, kEventTextInputUnicodeForKeyEvent }
 260         } ;
 261         if ( m_macEventHandler )
 262         {
 263         ::RemoveEventHandler((EventHandlerRef) m_macEventHandler);
 264         m_macEventHandler = NULL ;
 265     }
 266         InstallWindowEventHandler(MAC_WXHWND(m_macWindow), wxMacWindowEventHandlerUPP, WXSIZEOF(eventList), eventList, this, &((EventHandlerRef)m_macEventHandler));
 267 #endif
 268 }
 269
 270 void  wxTopLevelWindowMac::MacCreateRealWindow( const wxString& title,
 271            const wxPoint& pos,
 272            const wxSize& size,
 273            long style,
 274            const wxString& name )
 275 {
 276   SetName(name);
 277   m_windowStyle = style;
 278   m_isShown = FALSE;
 279
 280   // create frame.
 281
 282     Rect theBoundsRect;
 283
 284   m_x = (int)pos.x;
 285   m_y = (int)pos.y;
 286   if ( m_y < 50 )
 287     m_y = 50 ;
 288   if ( m_x < 20 )
 289     m_x = 20 ;
 290
 291   m_width = size.x;
 292     if (m_width == -1)
 293         m_width = 20;
 294   m_height = size.y;
 295     if (m_height == -1)
 296         m_height = 20;
 297
 298     ::SetRect(&theBoundsRect, m_x, m_y , m_x + m_width, m_y + m_height);
 299
 300     // translate the window attributes in the appropriate window class and attributes
 301
 302     WindowClass wclass = 0;
 303     WindowAttributes attr = kWindowNoAttributes ;
 304
 305     if ( HasFlag( wxFRAME_TOOL_WINDOW) )
 306     {
 307         if (
 308             HasFlag( wxMINIMIZE_BOX ) || HasFlag( wxMAXIMIZE_BOX ) ||
 309             HasFlag( wxSYSTEM_MENU ) || HasFlag( wxCAPTION ) ||
 310             HasFlag(wxTINY_CAPTION_HORIZ) ||  HasFlag(wxTINY_CAPTION_VERT)
 311              )
 312         {
 313             wclass = kFloatingWindowClass ;
 314             if ( HasFlag(wxTINY_CAPTION_VERT) )
 315             {
 316                 attr |= kWindowSideTitlebarAttribute ;
 317             }
 318         }
 319         else
 320         {
 321 #if TARGET_CARBON
 322             wclass = kPlainWindowClass ;
 323 #else
 324             wclass = kFloatingWindowClass ;
 325 #endif
 326         }
 327     }
 328     else if ( HasFlag( wxCAPTION ) )
 329     {
 330         if ( HasFlag( wxDIALOG_MODAL ) )
 331         {
 332             wclass = kDocumentWindowClass ; // kMovableModalWindowClass ;
 333         }
 334         else
 335         {
 336             wclass = kDocumentWindowClass ;
 337         }
 338     }
 339     else
 340     {
 341         if ( HasFlag( wxMINIMIZE_BOX ) || HasFlag( wxMAXIMIZE_BOX ) ||
 342              HasFlag( wxSYSTEM_MENU ) )
 343         {
 344             wclass = kDocumentWindowClass ;
 345         }
 346         else
 347         {
 348 #if TARGET_CARBON
 349             wclass = kPlainWindowClass ;
 350 #else
 351             wclass = kModalWindowClass ;
 352 #endif
 353         }
 354     }
 355
 356     if ( HasFlag( wxMINIMIZE_BOX ) || HasFlag( wxMAXIMIZE_BOX ) )
 357     {
 358         attr |= kWindowFullZoomAttribute ;
 359         attr |= kWindowCollapseBoxAttribute ;
 360     }
 361     if ( HasFlag( wxRESIZE_BORDER ) )
 362     {
 363         attr |= kWindowResizableAttribute ;
 364     }
 365     if ( HasFlag( wxSYSTEM_MENU ) )
 366     {
 367         attr |= kWindowCloseBoxAttribute ;
 368     }
 369
 370     ::CreateNewWindow( wclass , attr , &theBoundsRect , (WindowRef*)&m_macWindow ) ;
 371     wxAssociateWinWithMacWindow( m_macWindow , this ) ;
 372     wxString label ;
 373     if( wxApp::s_macDefaultEncodingIsPC )
 374         label = wxMacMakeMacStringFromPC( title ) ;
 375     else
 376         label = title ;
 377     UMASetWTitleC( (WindowRef)m_macWindow , label ) ;
 378     ::CreateRootControl( (WindowRef)m_macWindow , (ControlHandle*)&m_macRootControl ) ;
 379     MacInstallEventHandler() ;
 380
 381     m_macFocus = NULL ;
 382 }
 383
 384 void wxTopLevelWindowMac::MacGetPortParams(WXPOINTPTR localOrigin, WXRECTPTR clipRect, WXHWND *window  , wxWindowMac** rootwin)
 385 {
 386     ((Point*)localOrigin)->h = 0;
 387     ((Point*)localOrigin)->v = 0;
 388     ((Rect*)clipRect)->left = 0;
 389     ((Rect*)clipRect)->top = 0;
 390     ((Rect*)clipRect)->right = m_width;
 391     ((Rect*)clipRect)->bottom = m_height;
 392     *window = m_macWindow ;
 393     *rootwin = this ;
 394 }
 395
 396 void wxTopLevelWindowMac::Clear()
 397 {
 398   wxWindow::Clear() ;
 399 }
 400
 401 WXWidget wxTopLevelWindowMac::MacGetContainerForEmbedding()
 402 {
 403     return m_macRootControl ;
 404 }
 405
 406
 407 void wxTopLevelWindowMac::MacUpdate( long timestamp)
 408 {
 409
 410     wxMacPortStateHelper help( (GrafPtr) GetWindowPort( (WindowRef) m_macWindow) ) ;
 411
 412     BeginUpdate( (WindowRef)m_macWindow ) ;
 413
 414     RgnHandle       updateRgn = NewRgn();
 415     RgnHandle       diffRgn = NewRgn() ;
 416     if ( updateRgn && diffRgn )
 417     {
 418         GetPortVisibleRegion( GetWindowPort( (WindowRef)m_macWindow ), updateRgn );
 419         DiffRgn( updateRgn , (RgnHandle) m_macNoEraseUpdateRgn , diffRgn ) ;
 420         if ( !EmptyRgn( updateRgn ) )
 421         {
 422             MacRedraw( updateRgn , timestamp , m_macNeedsErasing || !EmptyRgn( diffRgn )  ) ;
 423         }
 424     }
 425     if ( updateRgn )
 426         DisposeRgn( updateRgn );
 427     if ( diffRgn )
 428         DisposeRgn( diffRgn );
 429     EndUpdate( (WindowRef)m_macWindow ) ;
 430     SetEmptyRgn( (RgnHandle) m_macNoEraseUpdateRgn ) ;
 431     m_macNeedsErasing = false ;
 432 }
 433
 434
 435 // Raise the window to the top of the Z order
 436 void wxTopLevelWindowMac::Raise()
 437 {
 438     ::BringToFront( (WindowRef)m_macWindow ) ;
 439 }
 440
 441 // Lower the window to the bottom of the Z order
 442 void wxTopLevelWindowMac::Lower()
 443 {
 444     ::SendBehind( (WindowRef)m_macWindow , NULL ) ;
 445 }
 446
 447 void wxTopLevelWindowMac::MacFireMouseEvent( WXEVENTREF evr )
 448 {
 449     EventRecord *ev = (EventRecord*) evr ;
 450     wxMouseEvent event(wxEVT_LEFT_DOWN);
 451     bool isDown = !(ev->modifiers & btnState) ; // 1 is for up
 452     bool controlDown = ev->modifiers & controlKey ; // for simulating right mouse
 453
 454     event.m_leftDown = isDown && !controlDown;
 455
 456     event.m_middleDown = FALSE;
 457     event.m_rightDown = isDown && controlDown;
 458
 459     if ( ev->what == mouseDown )
 460     {
 461         if ( controlDown )
 462             event.SetEventType(wxEVT_RIGHT_DOWN ) ;
 463         else
 464             event.SetEventType(wxEVT_LEFT_DOWN ) ;
 465     }
 466     else if ( ev->what == mouseUp )
 467     {
 468         if ( controlDown )
 469             event.SetEventType(wxEVT_RIGHT_UP ) ;
 470         else
 471             event.SetEventType(wxEVT_LEFT_UP ) ;
 472     }
 473     else
 474     {
 475         event.SetEventType(wxEVT_MOTION ) ;
 476     }
 477
 478     event.m_shiftDown = ev->modifiers & shiftKey;
 479     event.m_controlDown = ev->modifiers & controlKey;
 480     event.m_altDown = ev->modifiers & optionKey;
 481     event.m_metaDown = ev->modifiers & cmdKey;
 482
 483     Point       localwhere = ev->where ;
 484
 485     GrafPtr     port ;
 486     ::GetPort( &port ) ;
 487     ::SetPort( UMAGetWindowPort( (WindowRef)m_macWindow ) ) ;
 488     ::GlobalToLocal( &localwhere ) ;
 489     ::SetPort( port ) ;
 490
 491     if ( ev->what == mouseDown )
 492     {
 493         if ( ev->when - gs_lastWhen <= GetDblTime() )
 494         {
 495             if ( abs( localwhere.h - gs_lastWhere.h ) < 3 && abs( localwhere.v - gs_lastWhere.v ) < 3 )
 496             {
 497                 // This is not right if the second mouse down
 498                 // event occured in a differen window. We
 499                 // correct this in MacDispatchMouseEvent.
 500                 if ( controlDown )
 501                     event.SetEventType(wxEVT_RIGHT_DCLICK ) ;
 502                 else
 503                     event.SetEventType(wxEVT_LEFT_DCLICK ) ;
 504             }
 505             gs_lastWhen = 0 ;
 506         }
 507         else
 508         {
 509             gs_lastWhen = ev->when ;
 510         }
 511         gs_lastWhere = localwhere ;
 512     }
 513
 514     event.m_x = localwhere.h;
 515     event.m_y = localwhere.v;
 516     event.m_x += m_x;
 517     event.m_y += m_y;
 518
 519     event.m_timeStamp = ev->when;
 520     event.SetEventObject(this);
 521     if ( wxTheApp->s_captureWindow )
 522     {
 523         int x = event.m_x ;
 524         int y = event.m_y ;
 525         wxTheApp->s_captureWindow->ScreenToClient( &x , &y ) ;
 526         event.m_x = x ;
 527         event.m_y = y ;
 528         event.SetEventObject( wxTheApp->s_captureWindow ) ;
 529         wxTheApp->s_captureWindow->GetEventHandler()->ProcessEvent( event ) ;
 530
 531         if ( ev->what == mouseUp )
 532         {
 533             wxTheApp->s_captureWindow = NULL ;
 534             if ( !wxIsBusy() )
 535             {
 536                 m_cursor.MacInstall() ;
 537             }
 538         }
 539     }
 540     else
 541     {
 542         MacDispatchMouseEvent( event ) ;
 543     }
 544 }
 545
 546 void wxTopLevelWindowMac::MacMouseDown( WXEVENTREF ev , short part)
 547 {
 548     MacFireMouseEvent( ev ) ;
 549 }
 550
 551 void wxTopLevelWindowMac::MacMouseUp( WXEVENTREF ev , short part)
 552 {
 553     switch (part)
 554     {
 555         case inContent:
 556             {
 557                 MacFireMouseEvent( ev ) ;
 558             }
 559             break ;
 560     }
 561 }
 562
 563 void wxTopLevelWindowMac::MacMouseMoved( WXEVENTREF ev , short part)
 564 {
 565     switch (part)
 566     {
 567         case inContent:
 568             {
 569                 MacFireMouseEvent( ev ) ;
 570             }
 571             break ;
 572     }
 573 }
 574 void wxTopLevelWindowMac::MacActivate( WXEVENTREF ev , bool inIsActivating )
 575 {
 576     wxActivateEvent event(wxEVT_ACTIVATE, inIsActivating , m_windowId);
 577     event.m_timeStamp = ((EventRecord*)ev)->when ;
 578     event.SetEventObject(this);
 579
 580     GetEventHandler()->ProcessEvent(event);
 581
 582     UMAHighlightAndActivateWindow( (WindowRef)m_macWindow , inIsActivating ) ;
 583
 584     // Early versions of MacOS X don't refresh backgrounds properly,
 585     // so refresh the whole window on activation and deactivation.
 586     long osVersion = UMAGetSystemVersion();
 587     if (osVersion >= 0x1000 && osVersion < 0x1020)
 588         Refresh(TRUE);
 589     else
 590         MacSuperEnabled( inIsActivating ) ;
 591 }
 592
 593 void wxTopLevelWindowMac::MacKeyDown( WXEVENTREF ev )
 594 {
 595 }
 596
 597 void wxTopLevelWindowMac::SetTitle(const wxString& title)
 598 {
 599     wxWindow::SetTitle( title ) ;
 600
 601     wxString label ;
 602
 603     if( wxApp::s_macDefaultEncodingIsPC )
 604         label = wxMacMakeMacStringFromPC( m_label ) ;
 605     else
 606         label = m_label ;
 607
 608     UMASetWTitleC( (WindowRef)m_macWindow , label ) ;
 609 }
 610
 611 bool wxTopLevelWindowMac::Show(bool show)
 612 {
 613     if ( !wxWindow::Show(show) )
 614         return FALSE;
 615
 616     if (show)
 617     {
 618       ::TransitionWindow((WindowRef)m_macWindow,kWindowZoomTransitionEffect,kWindowShowTransitionAction,nil);
 619       ::SelectWindow( (WindowRef)m_macWindow ) ;
 620       // no need to generate events here, they will get them triggered by macos
 621       // actually they should be , but apparently they are not
 622       wxSize size(m_width, m_height);
 623       wxSizeEvent event(size, m_windowId);
 624       event.SetEventObject(this);
 625       GetEventHandler()->ProcessEvent(event);
 626     }
 627     else
 628     {
 629       ::TransitionWindow((WindowRef)m_macWindow,kWindowZoomTransitionEffect,kWindowHideTransitionAction,nil);
 630     }
 631
 632     if ( !show )
 633     {
 634     }
 635     else
 636     {
 637         Refresh() ;
 638     }
 639
 640     return TRUE;
 641 }
 642
 643 void wxTopLevelWindowMac::DoMoveWindow(int x, int y, int width, int height)
 644 {
 645     int former_x = m_x ;
 646     int former_y = m_y ;
 647     int former_w = m_width ;
 648     int former_h = m_height ;
 649
 650   int actualWidth = width;
 651   int actualHeight = height;
 652   int actualX = x;
 653   int actualY = y;
 654
 655     if ((m_minWidth != -1) && (actualWidth < m_minWidth))
 656         actualWidth = m_minWidth;
 657     if ((m_minHeight != -1) && (actualHeight < m_minHeight))
 658         actualHeight = m_minHeight;
 659     if ((m_maxWidth != -1) && (actualWidth > m_maxWidth))
 660         actualWidth = m_maxWidth;
 661     if ((m_maxHeight != -1) && (actualHeight > m_maxHeight))
 662         actualHeight = m_maxHeight;
 663
 664     bool doMove = false ;
 665     bool doResize = false ;
 666
 667     if ( actualX != former_x || actualY != former_y )
 668     {
 669         doMove = true ;
 670     }
 671     if ( actualWidth != former_w || actualHeight != former_h )
 672     {
 673         doResize = true ;
 674     }
 675
 676     if ( doMove || doResize )
 677     {
 678         m_x = actualX ;
 679         m_y = actualY ;
 680         m_width = actualWidth ;
 681         m_height = actualHeight ;
 682
 683         if ( doMove )
 684             ::MoveWindow((WindowRef)m_macWindow, m_x, m_y  , false); // don't make frontmost
 685
 686         if ( doResize )
 687             ::SizeWindow((WindowRef)m_macWindow, m_width, m_height  , true);
 688
 689         // the OS takes care of invalidating and erasing the new area so we only have to
 690         // take care of refreshing for full repaints
 691
 692         if ( doResize && !HasFlag(wxNO_FULL_REPAINT_ON_RESIZE) )
 693             Refresh() ;
 694
 695
 696         if ( IsKindOf( CLASSINFO( wxFrame ) ) )
 697         {
 698             wxFrame* frame = (wxFrame*) this ;
 699             frame->PositionStatusBar();
 700             frame->PositionToolBar();
 701         }
 702         if ( doMove )
 703             wxWindowMac::MacTopLevelWindowChangedPosition() ; // like this only children will be notified
 704
 705         MacRepositionScrollBars() ;
 706         if ( doMove )
 707         {
 708             wxPoint point(m_x, m_y);
 709             wxMoveEvent event(point, m_windowId);
 710             event.SetEventObject(this);
 711             GetEventHandler()->ProcessEvent(event) ;
 712         }
 713         if ( doResize )
 714         {
 715              MacRepositionScrollBars() ;
 716              wxSize size(m_width, m_height);
 717              wxSizeEvent event(size, m_windowId);
 718              event.SetEventObject(this);
 719              GetEventHandler()->ProcessEvent(event);
 720         }
 721     }
 722
 723 }
 724
 725 /*
 726  * Invalidation Mechanism
 727  *
 728  * The update mechanism reflects exactely the windows mechanism
 729  * the rect gets added to the window invalidate region, if the eraseBackground flag
 730  * has been true for any part of the update rgn the background is erased in the entire region
 731  * not just in the specified rect.
 732  *
 733  * In order to achive this, we also have an internal m_macNoEraseUpdateRgn, all rects that have
 734  * the eraseBackground flag set to false are also added to this rgn. upon receiving an update event
 735  * the update rgn is compared to the m_macNoEraseUpdateRgn and in case they differ, every window
 736  * will get the eraseBackground event first
 737  */
 738
 739 void wxTopLevelWindowMac::MacInvalidate( const WXRECTPTR rect, bool eraseBackground )
 740 {
 741   GrafPtr formerPort ;
 742   GetPort( &formerPort ) ;
 743   SetPortWindowPort( (WindowRef)m_macWindow ) ;
 744
 745   m_macNeedsErasing |= eraseBackground ;
 746
 747   // if we already know that we will have to erase, there's no need to track the rest
 748   if ( !m_macNeedsErasing)
 749   {
 750     // we end only here if eraseBackground is false
 751     // if we already have a difference between m_macNoEraseUpdateRgn and UpdateRgn
 752     // we will have to erase anyway
 753
 754     RgnHandle       updateRgn = NewRgn();
 755     RgnHandle       diffRgn = NewRgn() ;
 756     if ( updateRgn && diffRgn )
 757     {
 758         GetWindowUpdateRgn( (WindowRef)m_macWindow , updateRgn );
 759         Point pt = {0,0} ;
 760         LocalToGlobal( &pt ) ;
 761         OffsetRgn( updateRgn , -pt.h , -pt.v ) ;
 762         DiffRgn( updateRgn , (RgnHandle) m_macNoEraseUpdateRgn , diffRgn ) ;
 763         if ( !EmptyRgn( diffRgn ) )
 764         {
 765             m_macNeedsErasing = true ;
 766         }
 767     }
 768     if ( updateRgn )
 769         DisposeRgn( updateRgn );
 770     if ( diffRgn )
 771         DisposeRgn( diffRgn );
 772
 773     if ( !m_macNeedsErasing )
 774     {
 775       RgnHandle rectRgn = NewRgn() ;
 776       SetRectRgn( rectRgn , ((Rect*)rect)->left , ((Rect*)rect)->top , ((Rect*)rect)->right , ((Rect*)rect)->bottom ) ;
 777       UnionRgn( (RgnHandle) m_macNoEraseUpdateRgn , rectRgn , (RgnHandle) m_macNoEraseUpdateRgn ) ;
 778       DisposeRgn( rectRgn ) ;
 779     }
 780   }
 781   InvalWindowRect( (WindowRef)m_macWindow , (Rect*)rect ) ;
 782   // turn this on to debug the refreshing cycle
 783 #if wxMAC_DEBUG_REDRAW
 784   PaintRect( rect ) ;
 785 #endif
 786   SetPort( formerPort ) ;
 787 }
 788