applied patch 923858 (fixes crash in zlib streams)

[wxWidgets.git] / src / mac / carbon / dc.cpp

diff --git a/src/mac/carbon/dc.cpp b/src/mac/carbon/dc.cpp
index 005e7d54ea6d210f840bdd256d81f97f6880bd7c..49de162c0a83ef77537d4c9c2a98adc98faf880b 100644 (file)
--- a/src/mac/carbon/dc.cpp
+++ b/src/mac/carbon/dc.cpp
@@ -107,6 +107,7 @@ typedef wxMacPortSetter wxMacFastPortSetter ;
 wxMacWindowClipper::wxMacWindowClipper( const wxWindow* win ) :
     wxMacPortSaver( (GrafPtr) GetWindowPort((WindowRef) win->MacGetTopLevelWindowRef()) )
 {
+    m_newPort =(GrafPtr) GetWindowPort((WindowRef) win->MacGetTopLevelWindowRef()) ;
     m_formerClip = NewRgn() ;
     m_newClip = NewRgn() ;
     GetClip( m_formerClip ) ;
@@ -126,11 +127,26 @@ wxMacWindowClipper::wxMacWindowClipper( const wxWindow* win ) :
 
 wxMacWindowClipper::~wxMacWindowClipper() 
 {
+    SetPort( m_newPort ) ;
     SetClip( m_formerClip ) ;
     DisposeRgn( m_newClip ) ;
     DisposeRgn( m_formerClip ) ;
 }
 
+wxMacWindowStateSaver::wxMacWindowStateSaver( const wxWindow* win ) :
+    wxMacWindowClipper( win )
+{
+    // the port is already set at this point
+    m_newPort =(GrafPtr) GetWindowPort((WindowRef) win->MacGetTopLevelWindowRef()) ;
+    GetThemeDrawingState( &m_themeDrawingState ) ;
+}
+
+wxMacWindowStateSaver::~wxMacWindowStateSaver() 
+{
+    SetPort( m_newPort ) ;
+    SetThemeDrawingState( m_themeDrawingState , true ) ;
+}
+
 //-----------------------------------------------------------------------------
 // Local functions
 //-----------------------------------------------------------------------------
@@ -1649,10 +1665,9 @@ void  wxDC::Clear(void)
     wxCHECK_RET(Ok(), wxT("Invalid DC"));
     wxMacFastPortSetter helper(this) ;
     Rect rect = { -31000 , -31000 , 31000 , 31000 } ;
-    if (m_backgroundBrush.GetStyle() != wxTRANSPARENT)
+    if ( m_backgroundBrush.Ok() && m_backgroundBrush.GetStyle() != wxTRANSPARENT)
     {
         ::PenNormal() ;
-        //MacInstallBrush() ;
         MacSetupBackgroundForCurrentPort( m_backgroundBrush ) ;
         ::EraseRect( &rect ) ;
     }
@@ -1913,37 +1928,40 @@ void wxDC::MacInstallPen() const
 void wxDC::MacSetupBackgroundForCurrentPort(const wxBrush& background )
 {
     Pattern whiteColor ;
-    switch( background.MacGetBrushKind() )
+    if ( background.Ok() )
     {
-        case kwxMacBrushTheme :
-        {
-            ::SetThemeBackground( background.MacGetTheme() , wxDisplayDepth() , true ) ;
-            break ;
-        }
-        case kwxMacBrushThemeBackground :
-        {
-            Rect extent ;
-            ThemeBackgroundKind bg = background.MacGetThemeBackground( &extent ) ;
-            ::ApplyThemeBackground( bg , &extent ,kThemeStateActive , wxDisplayDepth() , true ) ;
-            break ;
-        }
-        case kwxMacBrushColour :
+        switch( background.MacGetBrushKind() )
         {
-            ::RGBBackColor( &MAC_WXCOLORREF( background.GetColour().GetPixel()) );
-            int brushStyle = background.GetStyle();
-            if (brushStyle == wxSOLID)
-                ::BackPat(GetQDGlobalsWhite(&whiteColor));
-            else if (IS_HATCH(brushStyle))
+            case kwxMacBrushTheme :
             {
-                Pattern pat ;
-                wxMacGetPattern(brushStyle, &pat);
-                ::BackPat(&pat);
+                ::SetThemeBackground( background.MacGetTheme() , wxDisplayDepth() , true ) ;
+                break ;
             }
-            else
+            case kwxMacBrushThemeBackground :
             {
-                ::BackPat(GetQDGlobalsWhite(&whiteColor));
+                Rect extent ;
+                ThemeBackgroundKind bg = background.MacGetThemeBackground( &extent ) ;
+                ::ApplyThemeBackground( bg , &extent ,kThemeStateActive , wxDisplayDepth() , true ) ;
+                break ;
+            }
+            case kwxMacBrushColour :
+            {
+                ::RGBBackColor( &MAC_WXCOLORREF( background.GetColour().GetPixel()) );
+                int brushStyle = background.GetStyle();
+                if (brushStyle == wxSOLID)
+                    ::BackPat(GetQDGlobalsWhite(&whiteColor));
+                else if (IS_HATCH(brushStyle))
+                {
+                    Pattern pat ;
+                    wxMacGetPattern(brushStyle, &pat);
+                    ::BackPat(&pat);
+                }
+                else
+                {
+                    ::BackPat(GetQDGlobalsWhite(&whiteColor));
+                }
+                break ;
             }
-            break ;
         }
     }
 }