X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/3b5bf72fbe427ed63e577a258483505f1a56929d..6258f9d978f9794820ad0a051994d8aad7c5c477:/src/mac/carbon/dcclient.cpp?ds=sidebyside

diff --git a/src/mac/carbon/dcclient.cpp b/src/mac/carbon/dcclient.cpp
index 1cfe5dcb30..7729ec0dbb 100644
--- a/src/mac/carbon/dcclient.cpp
+++ b/src/mac/carbon/dcclient.cpp
@@ -145,19 +145,17 @@ wxWindowDC::wxWindowDC(wxWindow *window)
 
         SetGraphicsContext( wxGraphicsContext::CreateFromNative( cg ) );
     }
-    m_graphicContext->SetPen( m_pen ) ;
-    m_graphicContext->SetBrush( m_brush ) ;
     SetClippingRegion( 0 , 0 , m_width , m_height ) ;
 #else
     int x , y ;
     x = y = 0 ;
     window->MacWindowToRootWindow( &x , &y ) ;
-    m_macLocalOrigin.x = x ;
-    m_macLocalOrigin.y = y ;
+    m_deviceLocalOriginX = x;
+    m_deviceLocalOriginY = y;
     m_macPort = UMAGetWindowPort( (WindowRef) rootwindow->MacGetWindowRef() ) ;
 
     CopyRgn( (RgnHandle) window->MacGetVisibleRegion(true).GetWXHRGN() , (RgnHandle) m_macBoundaryClipRgn ) ;
-    OffsetRgn( (RgnHandle) m_macBoundaryClipRgn , m_macLocalOrigin.x , m_macLocalOrigin.y ) ;
+    OffsetRgn( (RgnHandle) m_macBoundaryClipRgn , m_deviceLocalOriginX , m_deviceLocalOriginY ) ;
     CopyRgn( (RgnHandle) m_macBoundaryClipRgn , (RgnHandle) m_macCurrentClipRgn ) ;
 #endif
     SetBackground(MacGetBackgroundBrush(window));
@@ -193,6 +191,11 @@ void wxWindowDC::DoGetSize( int* width, int* height ) const
 
 wxBitmap wxWindowDC::DoGetAsBitmap(const wxRect *subrect) const
 {
+    // wxScreenDC is derived from wxWindowDC, so a screen dc will
+    // call this method when a Blit is performed with it as a source.
+    if (!m_window)
+        return wxNullBitmap;
+        
     ControlRef handle = (ControlRef) m_window->GetHandle();
     if ( !handle )
         return wxNullBitmap;
@@ -255,6 +258,7 @@ wxClientDC::wxClientDC()
 wxClientDC::wxClientDC(wxWindow *window) :
     wxWindowDC( window )
 {
+    wxCHECK_RET( window, _T("invalid window in wxClientDC") );
     wxPoint origin = window->GetClientAreaOrigin() ;
     m_window->GetClientSize( &m_width , &m_height);
     SetDeviceOrigin( origin.x, origin.y );
@@ -263,6 +267,7 @@ wxClientDC::wxClientDC(wxWindow *window) :
 #else
 wxClientDC::wxClientDC(wxWindow *window)
 {
+    wxCHECK_RET( window, _T("invalid window in wxClientDC") );
     m_window = window ;
     wxTopLevelWindowMac* rootwindow = window->MacGetTopLevelWindow() ;
     if (!rootwindow)
@@ -278,12 +283,12 @@ wxClientDC::wxClientDC(wxWindow *window)
     m_macPort = UMAGetWindowPort( windowref ) ;
     m_ok = true ;
 
-    m_macLocalOrigin.x = x ;
-    m_macLocalOrigin.y = y ;
+    m_deviceLocalOriginX = x ;
+    m_deviceLocalOriginY = y ;
     SetRectRgn( (RgnHandle) m_macBoundaryClipRgn , origin.x , origin.y , origin.x + size.x , origin.y + size.y ) ;
     SectRgn( (RgnHandle) m_macBoundaryClipRgn , (RgnHandle) window->MacGetVisibleRegion().GetWXHRGN() , (RgnHandle) m_macBoundaryClipRgn ) ;
     OffsetRgn( (RgnHandle) m_macBoundaryClipRgn , -origin.x , -origin.y ) ;
-    OffsetRgn( (RgnHandle) m_macBoundaryClipRgn , m_macLocalOrigin.x , m_macLocalOrigin.y ) ;
+    OffsetRgn( (RgnHandle) m_macBoundaryClipRgn , m_deviceLocalOriginX , m_deviceLocalOriginY ) ;
     CopyRgn( (RgnHandle) m_macBoundaryClipRgn ,(RgnHandle)  m_macCurrentClipRgn ) ;
 
     SetBackground(MacGetBackgroundBrush(window));
@@ -353,13 +358,13 @@ wxPaintDC::wxPaintDC(wxWindow *window)
     }
     // there is no out-of-order drawing on OSX
 #else
-    m_macLocalOrigin.x = x ;
-    m_macLocalOrigin.y = y ;
+    m_deviceLocalOriginX = x ;
+    m_deviceLocalOriginY = y ;
     SetRectRgn( (RgnHandle) m_macBoundaryClipRgn , origin.x , origin.y , origin.x + size.x , origin.y + size.y ) ;
     SectRgn( (RgnHandle) m_macBoundaryClipRgn , (RgnHandle) window->MacGetVisibleRegion().GetWXHRGN() , (RgnHandle) m_macBoundaryClipRgn ) ;
     OffsetRgn( (RgnHandle) m_macBoundaryClipRgn , -origin.x , -origin.y ) ;
     SectRgn( (RgnHandle) m_macBoundaryClipRgn  , (RgnHandle) window->GetUpdateRegion().GetWXHRGN() , (RgnHandle) m_macBoundaryClipRgn ) ;
-    OffsetRgn( (RgnHandle) m_macBoundaryClipRgn , m_macLocalOrigin.x , m_macLocalOrigin.y ) ;
+    OffsetRgn( (RgnHandle) m_macBoundaryClipRgn , m_deviceLocalOriginX , m_deviceLocalOriginY ) ;
     CopyRgn( (RgnHandle) m_macBoundaryClipRgn , (RgnHandle) m_macCurrentClipRgn ) ;
     SetBackground(MacGetBackgroundBrush(window));
 #endif