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     CGRect cgbounds ;
  25     cgbounds = CGDisplayBounds(CGMainDisplayID());
  26     Rect bounds;
  27     bounds.top = (short)cgbounds.origin.y;
  28     bounds.left = (short)cgbounds.origin.x;
  29     bounds.bottom = bounds.top + (short)cgbounds.size.height;
  30     bounds.right = bounds.left  + (short)cgbounds.size.width;
  31     WindowAttributes overlayAttributes  = kWindowIgnoreClicksAttribute;
  32     CreateNewWindow( kOverlayWindowClass, overlayAttributes, &bounds, (WindowRef*) &m_overlayWindow );
  33     ShowWindow((WindowRef)m_overlayWindow);
  34     SetGraphicsContext( wxGraphicsContext::CreateFromNativeWindow( m_overlayWindow ) );
  35     m_width = (wxCoord)cgbounds.size.width;
  36     m_height = (wxCoord)cgbounds.size.height;
  37 #else
  38     m_macPort = CreateNewPort() ;
  39     GrafPtr port ;
  40     GetPort( &port ) ;
  41     SetPort( (GrafPtr) m_macPort ) ;
  42     Point pt = { 0,0 } ;
  43     LocalToGlobal( &pt ) ;
  44     SetPort( port ) ;
  45     m_macLocalOrigin.x = -pt.h ;
  46     m_macLocalOrigin.y = -pt.v ;
  47
  48     BitMap screenBits;
  49     GetQDGlobalsScreenBits( &screenBits );
  50     m_minX = screenBits.bounds.left ;
  51
  52     SInt16 height ;
  53     GetThemeMenuBarHeight( &height ) ;
  54     m_minY = screenBits.bounds.top + height ;
  55
  56     m_maxX = screenBits.bounds.right  ;
  57     m_maxY = screenBits.bounds.bottom ;
  58
  59     MacSetRectRgn( (RgnHandle) m_macBoundaryClipRgn , m_minX , m_minY , m_maxX , m_maxY ) ;
  60     OffsetRgn( (RgnHandle) m_macBoundaryClipRgn , m_macLocalOrigin.x , m_macLocalOrigin.y ) ;
  61     CopyRgn( (RgnHandle) m_macBoundaryClipRgn , (RgnHandle) m_macCurrentClipRgn ) ;
  62 #endif
  63     m_ok = true ;
  64 }
  65
  66 wxScreenDC::~wxScreenDC()
  67 {
  68 #if wxMAC_USE_CORE_GRAPHICS
  69     delete m_graphicContext;
  70     m_graphicContext = NULL;
  71     DisposeWindow((WindowRef) m_overlayWindow );
  72 #else
  73     if ( m_macPort )
  74         DisposePort( (CGrafPtr) m_macPort ) ;
  75 #endif
  76 }