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     CGRect cgbounds ;
  29     cgbounds = CGDisplayBounds(CGMainDisplayID());
  30     Rect bounds;
  31     bounds.top = (short)cgbounds.origin.y;
  32     bounds.left = (short)cgbounds.origin.x;
  33     bounds.bottom = bounds.top + (short)cgbounds.size.height;
  34     bounds.right = bounds.left  + (short)cgbounds.size.width;
  35     WindowAttributes overlayAttributes  = kWindowIgnoreClicksAttribute;
  36     CreateNewWindow( kOverlayWindowClass, overlayAttributes, &bounds, (WindowRef*) &m_overlayWindow );
  37     ShowWindow((WindowRef)m_overlayWindow);
  38     SetGraphicsContext( wxGraphicsContext::CreateFromNativeWindow( m_overlayWindow ) );
  39     m_width = (wxCoord)cgbounds.size.width;
  40     m_height = (wxCoord)cgbounds.size.height;
  41     m_ok = true ;
  42 }
  43
  44 wxScreenDC::~wxScreenDC()
  45 {
  46     delete m_graphicContext;
  47     m_graphicContext = NULL;
  48     DisposeWindow((WindowRef) m_overlayWindow );
  49 }