src/mac/carbon/dcscreen.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/mac/carbon/dcscreen.cpp
   3 // Purpose:     wxScreenDC class
   4 // Author:      Stefan Csomor
   5 // Modified by:
   6 // Created:     1998-01-01
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Stefan Csomor
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #include "wx/wxprec.h"
  13
  14 #include "wx/dcscreen.h"
  15
  16 #include "wx/mac/uma.h"
  17
  18 IMPLEMENT_DYNAMIC_CLASS(wxScreenDC, wxWindowDC)
  19
  20 // Create a DC representing the whole screen
  21 wxScreenDC::wxScreenDC()
  22 {
  23 #if wxMAC_USE_CORE_GRAPHICS
  24         CGrafPtr grafptr = CreateNewPort() ;
  25         m_displayId = (UInt32) grafptr;
  26         CGContextRef cg = NULL;
  27         OSStatus status = QDBeginCGContext( grafptr , &cg );
  28
  29         CGRect bounds ;
  30     bounds = CGDisplayBounds(CGMainDisplayID());
  31
  32     SInt16 height;
  33     GetThemeMenuBarHeight( &height );
  34     m_minY = height;
  35         m_minX = 0;
  36     m_maxX = bounds.size.width;
  37     m_maxY = bounds.size.height - height;
  38         CGContextTranslateCTM( cg , 0 , bounds.size.height );
  39         CGContextScaleCTM( cg , 1 , -1 );
  40
  41     SetGraphicsContext( wxGraphicsContext::CreateFromNative( cg ) );
  42         m_width = bounds.size.width;
  43         m_height = bounds.size.height - height;
  44 #else
  45     m_macPort = CreateNewPort() ;
  46     GrafPtr port ;
  47     GetPort( &port ) ;
  48     SetPort( (GrafPtr) m_macPort ) ;
  49     Point pt = { 0,0 } ;
  50     LocalToGlobal( &pt ) ;
  51     SetPort( port ) ;
  52     m_macLocalOrigin.x = -pt.h ;
  53     m_macLocalOrigin.y = -pt.v ;
  54
  55     BitMap screenBits;
  56     GetQDGlobalsScreenBits( &screenBits );
  57     m_minX = screenBits.bounds.left ;
  58
  59     SInt16 height ;
  60     GetThemeMenuBarHeight( &height ) ;
  61     m_minY = screenBits.bounds.top + height ;
  62
  63     m_maxX = screenBits.bounds.right  ;
  64     m_maxY = screenBits.bounds.bottom ;
  65
  66     MacSetRectRgn( (RgnHandle) m_macBoundaryClipRgn , m_minX , m_minY , m_maxX , m_maxY ) ;
  67     OffsetRgn( (RgnHandle) m_macBoundaryClipRgn , m_macLocalOrigin.x , m_macLocalOrigin.y ) ;
  68     CopyRgn( (RgnHandle) m_macBoundaryClipRgn , (RgnHandle) m_macCurrentClipRgn ) ;
  69 #endif
  70         m_ok = true ;
  71 }
  72
  73 wxScreenDC::~wxScreenDC()
  74 {
  75 #if wxMAC_USE_CORE_GRAPHICS
  76         CGrafPtr grafptr = (CGrafPtr) m_displayId;
  77         m_displayId = (UInt32) grafptr;
  78         CGContextRef cg = (CGContextRef) m_graphicContext->GetNativeContext();
  79         QDEndCGContext(grafptr, &cg );
  80
  81     delete m_graphicContext;
  82     m_graphicContext = NULL;
  83 #else
  84     if ( m_macPort )
  85         DisposePort( (CGrafPtr) m_macPort ) ;
  86 #endif
  87 }