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 #include "wx/graphics.h"
  18
  19 IMPLEMENT_DYNAMIC_CLASS(wxScreenDC, wxWindowDC)
  20
  21 // TODO : for the Screenshot use case, which doesn't work in Quartz
  22 // we should do a GetAsBitmap using something like
  23 // http://www.cocoabuilder.com/archive/message/cocoa/2005/8/13/144256
  24
  25 // Create a DC representing the whole screen
  26 wxScreenDC::wxScreenDC()
  27 {
  28 #if wxMAC_USE_CORE_GRAPHICS
  29     CGRect cgbounds ;
  30     cgbounds = CGDisplayBounds(CGMainDisplayID());
  31     Rect bounds;
  32     bounds.top = (short)cgbounds.origin.y;
  33     bounds.left = (short)cgbounds.origin.x;
  34     bounds.bottom = bounds.top + (short)cgbounds.size.height;
  35     bounds.right = bounds.left  + (short)cgbounds.size.width;
  36     WindowAttributes overlayAttributes  = kWindowIgnoreClicksAttribute;
  37     CreateNewWindow( kOverlayWindowClass, overlayAttributes, &bounds, (WindowRef*) &m_overlayWindow );
  38     ShowWindow((WindowRef)m_overlayWindow);
  39     SetGraphicsContext( wxGraphicsContext::CreateFromNativeWindow( m_overlayWindow ) );
  40     m_width = (wxCoord)cgbounds.size.width;
  41     m_height = (wxCoord)cgbounds.size.height;
  42 #else
  43     m_macPort = CreateNewPort() ;
  44     GrafPtr port ;
  45     GetPort( &port ) ;
  46     SetPort( (GrafPtr) m_macPort ) ;
  47     Point pt = { 0,0 } ;
  48     LocalToGlobal( &pt ) ;
  49     SetPort( port ) ;
  50     m_deviceLocalOriginX = -pt.h ;
  51     m_deviceLocalOriginY = -pt.v ;
  52
  53     BitMap screenBits;
  54     GetQDGlobalsScreenBits( &screenBits );
  55     m_minX = screenBits.bounds.left ;
  56
  57     SInt16 height ;
  58     GetThemeMenuBarHeight( &height ) ;
  59     m_minY = screenBits.bounds.top + height ;
  60
  61     m_maxX = screenBits.bounds.right  ;
  62     m_maxY = screenBits.bounds.bottom ;
  63
  64     MacSetRectRgn( (RgnHandle) m_macBoundaryClipRgn , m_minX , m_minY , m_maxX , m_maxY ) ;
  65     OffsetRgn( (RgnHandle) m_macBoundaryClipRgn , m_deviceLocalOriginX , m_deviceLocalOriginY ) ;
  66     CopyRgn( (RgnHandle) m_macBoundaryClipRgn , (RgnHandle) m_macCurrentClipRgn ) ;
  67 #endif
  68     m_ok = true ;
  69 }
  70
  71 wxScreenDC::~wxScreenDC()
  72 {
  73 #if wxMAC_USE_CORE_GRAPHICS
  74     delete m_graphicContext;
  75     m_graphicContext = NULL;
  76     DisposeWindow((WindowRef) m_overlayWindow );
  77 #else
  78     if ( m_macPort )
  79         DisposePort( (CGrafPtr) m_macPort ) ;
  80 #endif
  81 }