non-pch build fix for wxUSE_DISPLAY==0

[wxWidgets.git] / src / common / dcgraph.cpp

diff --git a/src/common/dcgraph.cpp b/src/common/dcgraph.cpp
index be08d5b29cf05cca47dbece506fc9e24234b7013..54ecf302cbe44925d89ae0e992646e09af19fdc6 100644 (file)
--- a/src/common/dcgraph.cpp
+++ b/src/common/dcgraph.cpp
@@ -3,7 +3,7 @@
 // Purpose:     graphics context methods common to all platforms
 // Author:      Stefan Csomor
 // Modified by:
 // Purpose:     graphics context methods common to all platforms
 // Author:      Stefan Csomor
 // Modified by:

-// Created:     
+// Created:

 // RCS-ID:      $Id$
 // Copyright:   (c) Stefan Csomor
 // Licence:     wxWindows licence
 // RCS-ID:      $Id$
 // Copyright:   (c) Stefan Csomor
 // Licence:     wxWindows licence


@@ -27,6 +27,9 @@
     #include "wx/region.h"
 #endif
 
     #include "wx/region.h"
 #endif
 

+#ifdef __WXMAC__
+#include "wx/mac/private.h"
+#endif

 //-----------------------------------------------------------------------------
 // constants
 //-----------------------------------------------------------------------------
 //-----------------------------------------------------------------------------
 // constants
 //-----------------------------------------------------------------------------


@@ -58,13 +61,18 @@ wxGCDC::wxGCDC()
 }
 
 void wxGCDC::SetGraphicsContext( wxGraphicsContext* ctx )
 }
 
 void wxGCDC::SetGraphicsContext( wxGraphicsContext* ctx )

-{ 
+{

     delete m_graphicContext;
     m_graphicContext = ctx;
     if ( m_graphicContext )
     {
         m_matrixOriginal = m_graphicContext->GetTransform();
         m_ok = true;
     delete m_graphicContext;
     m_graphicContext = ctx;
     if ( m_graphicContext )
     {
         m_matrixOriginal = m_graphicContext->GetTransform();
         m_ok = true;

+        // apply the stored transformations to the passed in context
+        ComputeScaleAndOrigin();
+        m_graphicContext->SetFont( m_font , m_textForegroundColour );
+        m_graphicContext->SetPen( m_pen );
+        m_graphicContext->SetBrush( m_brush);

     }
 }
 
     }
 }
 


@@ -72,14 +80,16 @@ wxGCDC::wxGCDC(const wxWindowDC& dc)
 {
     Init();
     SetGraphicsContext( wxGraphicsContext::Create(dc) );
 {
     Init();
     SetGraphicsContext( wxGraphicsContext::Create(dc) );

-    if ( dc.GetFont().Ok())
-        m_graphicContext->SetFont( m_graphicContext->CreateFont(dc.GetFont(),dc.GetTextForeground()));
-    if ( dc.GetPen().Ok())
-        m_graphicContext->SetPen( m_graphicContext->CreatePen(dc.GetPen()));
-    if ( dc.GetBrush().Ok())
-        m_graphicContext->SetBrush( m_graphicContext->CreateBrush(dc.GetBrush()));

 }
 
 }
 

+#ifdef __WXMSW__
+wxGCDC::wxGCDC(const wxMemoryDC& dc)
+{
+    Init();
+    SetGraphicsContext( wxGraphicsContext::Create(dc) );
+}
+#endif    
+

 void wxGCDC::Init()
 {
     m_ok = false;
 void wxGCDC::Init()
 {
     m_ok = false;


@@ -92,6 +102,7 @@ void wxGCDC::Init()
     m_brush = *wxWHITE_BRUSH;
 
     m_graphicContext = NULL;
     m_brush = *wxWHITE_BRUSH;
 
     m_graphicContext = NULL;

+    m_logicalFunctionSupported = true;

 }
 
 
 }
 
 


@@ -105,7 +116,18 @@ void wxGCDC::DoDrawBitmap( const wxBitmap &bmp, wxCoord x, wxCoord y, bool WXUNU
     wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoDrawBitmap - invalid DC") );
     wxCHECK_RET( bmp.Ok(), wxT("wxGCDC(cg)::DoDrawBitmap - invalid bitmap") );
 
     wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoDrawBitmap - invalid DC") );
     wxCHECK_RET( bmp.Ok(), wxT("wxGCDC(cg)::DoDrawBitmap - invalid bitmap") );
 

-    m_graphicContext->DrawBitmap( bmp, x , y , bmp.GetWidth() , bmp.GetHeight() );
+    if ( bmp.GetDepth() == 1 )
+    {
+        m_graphicContext->SetPen(*wxTRANSPARENT_PEN);
+        m_graphicContext->SetBrush( wxBrush( m_textBackgroundColour , wxSOLID ) );
+        m_graphicContext->DrawRectangle( x , y , bmp.GetWidth() , bmp.GetHeight() );        
+        m_graphicContext->SetBrush( wxBrush( m_textForegroundColour , wxSOLID ) );
+        m_graphicContext->DrawBitmap( bmp, x , y , bmp.GetWidth() , bmp.GetHeight() );
+        m_graphicContext->SetBrush( m_graphicContext->CreateBrush(m_brush));
+        m_graphicContext->SetPen( m_graphicContext->CreatePen(m_pen));
+    }
+    else
+        m_graphicContext->DrawBitmap( bmp, x , y , bmp.GetWidth() , bmp.GetHeight() );

 }
 
 void wxGCDC::DoDrawIcon( const wxIcon &icon, wxCoord x, wxCoord y )
 }
 
 void wxGCDC::DoDrawIcon( const wxIcon &icon, wxCoord x, wxCoord y )


@@ -119,6 +141,30 @@ void wxGCDC::DoDrawIcon( const wxIcon &icon, wxCoord x, wxCoord y )
     m_graphicContext->DrawIcon( icon , x, y, w, h );
 }
 
     m_graphicContext->DrawIcon( icon , x, y, w, h );
 }
 

+bool wxGCDC::StartDoc( const wxString& WXUNUSED(message) ) 
+{
+    return false;
+}
+
+void wxGCDC::EndDoc() 
+{
+}
+
+void wxGCDC::StartPage()
+{
+}
+
+void wxGCDC::EndPage() 
+{
+}
+    
+void wxGCDC::Flush()
+{
+#ifdef __WXMAC__
+    CGContextFlush( (CGContextRef) m_graphicContext->GetNativeContext() );
+#endif
+}
+

 void wxGCDC::DoSetClippingRegion( wxCoord x, wxCoord y, wxCoord w, wxCoord h )
 {
     wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoSetClippingRegion - invalid DC") );
 void wxGCDC::DoSetClippingRegion( wxCoord x, wxCoord y, wxCoord w, wxCoord h )
 {
     wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoSetClippingRegion - invalid DC") );


@@ -144,18 +190,22 @@ void wxGCDC::DoSetClippingRegion( wxCoord x, wxCoord y, wxCoord w, wxCoord h )
 
 void wxGCDC::DoSetClippingRegionAsRegion( const wxRegion &region )
 {
 
 void wxGCDC::DoSetClippingRegionAsRegion( const wxRegion &region )
 {

+    // region is in device coordinates

     wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoSetClippingRegionAsRegion - invalid DC") );
 
     if (region.Empty())
     {
     wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoSetClippingRegionAsRegion - invalid DC") );
 
     if (region.Empty())
     {

-        DestroyClippingRegion();
+        //DestroyClippingRegion();

         return;
     }
 
         return;
     }
 

+    wxRegion logRegion( region );

     wxCoord x, y, w, h;
     wxCoord x, y, w, h;

-    region.GetBox( x, y, w, h );

 
 

-    m_graphicContext->Clip( region );
+    logRegion.Offset( DeviceToLogicalX(0), DeviceToLogicalY(0) );
+    logRegion.GetBox( x, y, w, h );
+
+    m_graphicContext->Clip( logRegion );

     if ( m_clipping )
     {
         m_clipX1 = wxMax( m_clipX1, x );
     if ( m_clipping )
     {
         m_clipX1 = wxMax( m_clipX1, x );


@@ -177,6 +227,12 @@ void wxGCDC::DoSetClippingRegionAsRegion( const wxRegion &region )
 void wxGCDC::DestroyClippingRegion()
 {
     m_graphicContext->ResetClip();
 void wxGCDC::DestroyClippingRegion()
 {
     m_graphicContext->ResetClip();

+    // currently the clip eg of a window extends to the area between the scrollbars
+    // so we must explicitely make sure it only covers the area we want it to draw
+    int width, height ;
+    GetSize( &width , &height ) ;
+    m_graphicContext->Clip( DeviceToLogicalX(0) , DeviceToLogicalY(0) , DeviceToLogicalXRel(width), DeviceToLogicalYRel(height) );
+    

     m_graphicContext->SetPen( m_pen );
     m_graphicContext->SetBrush( m_brush );
 
     m_graphicContext->SetPen( m_pen );
     m_graphicContext->SetBrush( m_brush );
 


@@ -294,13 +350,17 @@ void wxGCDC::ComputeScaleAndOrigin()
     m_scaleX = m_logicalScaleX * m_userScaleX;
     m_scaleY = m_logicalScaleY * m_userScaleY;
 
     m_scaleX = m_logicalScaleX * m_userScaleX;
     m_scaleY = m_logicalScaleY * m_userScaleY;
 

-    m_matrixCurrent = m_graphicContext->CreateMatrix();
-    m_matrixCurrent.Translate( m_deviceOriginX, m_deviceOriginY );
-    m_matrixCurrent.Scale( m_scaleX, m_scaleY );
-    m_matrixCurrent.Translate( m_logicalOriginX, m_logicalOriginY );
-    
-    m_graphicContext->SetTransform( m_matrixOriginal );
-    m_graphicContext->ConcatTransform( m_matrixCurrent );
+    if ( m_graphicContext )
+    {
+        m_matrixCurrent = m_graphicContext->CreateMatrix();
+        m_matrixCurrent.Translate( m_deviceOriginX, m_deviceOriginY );
+        m_matrixCurrent.Scale( m_scaleX, m_scaleY );
+        // the logical origin sets the origin to have new coordinates
+        m_matrixCurrent.Translate( -m_logicalOriginX, -m_logicalOriginY );
+
+        m_graphicContext->SetTransform( m_matrixOriginal );
+        m_graphicContext->ConcatTransform( m_matrixCurrent );
+    }

 }
 
 void wxGCDC::SetPalette( const wxPalette& WXUNUSED(palette) )
 }
 
 void wxGCDC::SetPalette( const wxPalette& WXUNUSED(palette) )


@@ -348,7 +408,7 @@ void wxGCDC::SetBrush( const wxBrush &brush )
         m_graphicContext->SetBrush( m_brush );
     }
 }
         m_graphicContext->SetBrush( m_brush );
     }
 }

-
+ 

 void wxGCDC::SetBackground( const wxBrush &brush )
 {
     if (m_backgroundBrush == brush)
 void wxGCDC::SetBackground( const wxBrush &brush )
 {
     if (m_backgroundBrush == brush)


@@ -365,17 +425,10 @@ void wxGCDC::SetLogicalFunction( int function )
         return;
 
     m_logicalFunction = function;
         return;
 
     m_logicalFunction = function;

-#if wxMAC_USE_CORE_GRAPHICS_BLEND_MODES
-
-    CGContextRef cgContext = ((wxCairoContext*)(m_graphicContext))->GetNativeContext();
-    if ( m_logicalFunction == wxCOPY )
-        CGContextSetBlendMode( cgContext, kCGBlendModeNormal );
-    else if ( m_logicalFunction == wxINVERT )
-        CGContextSetBlendMode( cgContext, kCGBlendModeExclusion );
+    if ( m_graphicContext->SetLogicalFunction( function ) )
+        m_logicalFunctionSupported=true;

     else
     else

-        CGContextSetBlendMode( cgContext, kCGBlendModeNormal );
-#endif
-
+        m_logicalFunctionSupported=false;

 }
 
 bool wxGCDC::DoFloodFill(wxCoord WXUNUSED(x), wxCoord WXUNUSED(y),
 }
 
 bool wxGCDC::DoFloodFill(wxCoord WXUNUSED(x), wxCoord WXUNUSED(y),


@@ -394,11 +447,8 @@ void wxGCDC::DoDrawLine( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2 )
 {
     wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoDrawLine - invalid DC") );
 
 {
     wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoDrawLine - invalid DC") );
 

-#if !wxMAC_USE_CORE_GRAPHICS_BLEND_MODES
-
-    if ( m_logicalFunction != wxCOPY )
+    if ( !m_logicalFunctionSupported )

         return;
         return;

-#endif

 
     m_graphicContext->StrokeLine(x1,y1,x2,y2);
 
 
     m_graphicContext->StrokeLine(x1,y1,x2,y2);
 


@@ -410,7 +460,7 @@ void wxGCDC::DoCrossHair( wxCoord x, wxCoord y )
 {
     wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoCrossHair - invalid DC") );
 
 {
     wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoCrossHair - invalid DC") );
 

-    if ( m_logicalFunction != wxCOPY )
+    if ( !m_logicalFunctionSupported )

         return;
 
     int w = 0, h = 0;
         return;
 
     int w = 0, h = 0;


@@ -430,7 +480,7 @@ void wxGCDC::DoDrawArc( wxCoord x1, wxCoord y1,
 {
     wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoDrawArc - invalid DC") );
 
 {
     wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoDrawArc - invalid DC") );
 

-    if ( m_logicalFunction != wxCOPY )
+    if ( !m_logicalFunctionSupported )

         return;
 
     double dx = x1 - xc;
         return;
 
     double dx = x1 - xc;


@@ -462,7 +512,9 @@ void wxGCDC::DoDrawArc( wxCoord x1, wxCoord y1,
     wxGraphicsPath path = m_graphicContext->CreatePath();
     if ( fill && ((x1!=x2)||(y1!=y2)) )
         path.MoveToPoint( xc, yc );
     wxGraphicsPath path = m_graphicContext->CreatePath();
     if ( fill && ((x1!=x2)||(y1!=y2)) )
         path.MoveToPoint( xc, yc );

-    path.AddArc( xc, yc , rad , DegToRad(sa) , DegToRad(ea), false );
+    // since these angles (ea,sa) are measured counter-clockwise, we invert them to
+    // get clockwise angles
+    path.AddArc( xc, yc , rad , DegToRad(-sa) , DegToRad(-ea), false );

     if ( fill && ((x1!=x2)||(y1!=y2)) )
         path.AddLineToPoint( xc, yc );
     m_graphicContext->DrawPath(path);
     if ( fill && ((x1!=x2)||(y1!=y2)) )
         path.AddLineToPoint( xc, yc );
     m_graphicContext->DrawPath(path);


@@ -473,24 +525,37 @@ void wxGCDC::DoDrawEllipticArc( wxCoord x, wxCoord y, wxCoord w, wxCoord h,
 {
     wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoDrawEllipticArc - invalid DC") );
 
 {
     wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoDrawEllipticArc - invalid DC") );
 

-    if ( m_logicalFunction != wxCOPY )
+    if ( !m_logicalFunctionSupported )

         return;
 
         return;
 

-    bool fill = m_brush.GetStyle() != wxTRANSPARENT;
-
-    wxGraphicsPath path = m_graphicContext->CreatePath();

     m_graphicContext->PushState();
     m_graphicContext->PushState();

-    m_graphicContext->Translate(x+w/2,y+h/2);
+    m_graphicContext->Translate(x+w/2.0,y+h/2.0);

     wxDouble factor = ((wxDouble) w) / h;
     m_graphicContext->Scale( factor , 1.0);
     wxDouble factor = ((wxDouble) w) / h;
     m_graphicContext->Scale( factor , 1.0);

-    if ( fill && (sa!=ea) )
-        path.MoveToPoint(0,0);
+

     // since these angles (ea,sa) are measured counter-clockwise, we invert them to
     // get clockwise angles
     // since these angles (ea,sa) are measured counter-clockwise, we invert them to
     // get clockwise angles

-    path.AddArc( 0, 0, h/2 , DegToRad(-sa) , DegToRad(-ea), sa > ea );
-    if ( fill && (sa!=ea) )
-        path.AddLineToPoint(0,0);
+    if ( m_brush.GetStyle() != wxTRANSPARENT )
+    {
+        wxGraphicsPath path = m_graphicContext->CreatePath();
+        path.MoveToPoint( 0, 0 );
+        path.AddLineToPoint( h / 2.0 * cos(DegToRad(sa)) , h / 2.0 * sin(DegToRad(-sa)) );
+        path.AddLineToPoint( h / 2.0 * cos(DegToRad(ea)) , h / 2.0 * sin(DegToRad(-ea)) );
+        path.AddLineToPoint( 0, 0 );
+        m_graphicContext->FillPath( path );
+
+        path = m_graphicContext->CreatePath();
+        path.AddArc( 0, 0, h/2.0 , DegToRad(-sa) , DegToRad(-ea), sa > ea );
+        m_graphicContext->FillPath( path );
+        m_graphicContext->StrokePath( path );
+    }
+    else
+    {
+        wxGraphicsPath path = m_graphicContext->CreatePath();
+    path.AddArc( 0, 0, h/2.0 , DegToRad(-sa) , DegToRad(-ea), sa > ea );

     m_graphicContext->DrawPath( path );
     m_graphicContext->DrawPath( path );

+    }
+

     m_graphicContext->PopState();
 }
 
     m_graphicContext->PopState();
 }
 


@@ -506,11 +571,8 @@ void wxGCDC::DoDrawLines(int n, wxPoint points[],
 {
     wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoDrawLines - invalid DC") );
 
 {
     wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoDrawLines - invalid DC") );
 

-#if !wxMAC_USE_CORE_GRAPHICS_BLEND_MODES
-
-    if ( m_logicalFunction != wxCOPY )
+    if ( !m_logicalFunctionSupported )

         return;
         return;

-#endif

 
     wxPoint2DDouble* pointsD = new wxPoint2DDouble[n];
     for( int i = 0; i < n; ++i)
 
     wxPoint2DDouble* pointsD = new wxPoint2DDouble[n];
     for( int i = 0; i < n; ++i)


@@ -524,27 +586,27 @@ void wxGCDC::DoDrawLines(int n, wxPoint points[],
 }
 
 #if wxUSE_SPLINES
 }
 
 #if wxUSE_SPLINES

-void wxGCDC::DoDrawSpline(wxList *points)
+void wxGCDC::DoDrawSpline(const wxPointList *points)

 {
     wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoDrawSpline - invalid DC") );
 
 {
     wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoDrawSpline - invalid DC") );
 

-    if ( m_logicalFunction != wxCOPY )
+    if ( !m_logicalFunctionSupported )

         return;
 
     wxGraphicsPath path = m_graphicContext->CreatePath();
 
         return;
 
     wxGraphicsPath path = m_graphicContext->CreatePath();
 

-    wxList::compatibility_iterator node = points->GetFirst();
-    if (node == wxList::compatibility_iterator())
+    wxPointList::compatibility_iterator node = points->GetFirst();
+    if (node == wxPointList::compatibility_iterator())

         // empty list
         return;
 
         // empty list
         return;
 

-    wxPoint *p = (wxPoint *)node->GetData();
+    wxPoint *p = node->GetData();

 
     wxCoord x1 = p->x;
     wxCoord y1 = p->y;
 
     node = node->GetNext();
 
     wxCoord x1 = p->x;
     wxCoord y1 = p->y;
 
     node = node->GetNext();

-    p = (wxPoint *)node->GetData();
+    p = node->GetData();

 
     wxCoord x2 = p->x;
     wxCoord y2 = p->y;
 
     wxCoord x2 = p->x;
     wxCoord y2 = p->y;


@@ -562,7 +624,7 @@ void wxGCDC::DoDrawSpline(wxList *points)
 #endif // !wxUSE_STL
 
     {
 #endif // !wxUSE_STL
 
     {

-        p = (wxPoint *)node->GetData();
+        p = node->GetData();

         x1 = x2;
         y1 = y2;
         x2 = p->x;
         x1 = x2;
         y1 = y2;
         x2 = p->x;


@@ -590,7 +652,7 @@ void wxGCDC::DoDrawPolygon( int n, wxPoint points[],
 
     if ( n <= 0 || (m_brush.GetStyle() == wxTRANSPARENT && m_pen.GetStyle() == wxTRANSPARENT ) )
         return;
 
     if ( n <= 0 || (m_brush.GetStyle() == wxTRANSPARENT && m_pen.GetStyle() == wxTRANSPARENT ) )
         return;

-    if ( m_logicalFunction != wxCOPY )
+    if ( !m_logicalFunctionSupported )

         return;
 
     bool closeIt = false;
         return;
 
     bool closeIt = false;


@@ -643,7 +705,7 @@ void wxGCDC::DoDrawRectangle(wxCoord x, wxCoord y, wxCoord w, wxCoord h)
 {
     wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoDrawRectangle - invalid DC") );
 
 {
     wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoDrawRectangle - invalid DC") );
 

-    if ( m_logicalFunction != wxCOPY )
+    if ( !m_logicalFunctionSupported )

         return;
 
     // CMB: draw nothing if transformed w or h is 0
         return;
 
     // CMB: draw nothing if transformed w or h is 0


@@ -666,7 +728,7 @@ void wxGCDC::DoDrawRoundedRectangle(wxCoord x, wxCoord y,
 {
     wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoDrawRoundedRectangle - invalid DC") );
 
 {
     wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoDrawRoundedRectangle - invalid DC") );
 

-    if ( m_logicalFunction != wxCOPY )
+    if ( !m_logicalFunctionSupported )

         return;
 
     if (radius < 0.0)
         return;
 
     if (radius < 0.0)


@@ -676,6 +738,13 @@ void wxGCDC::DoDrawRoundedRectangle(wxCoord x, wxCoord y,
     if (w == 0 || h == 0)
         return;
 
     if (w == 0 || h == 0)
         return;
 

+    if ( m_graphicContext->ShouldOffset() )
+    {
+        // if we are offsetting the entire rectangle is moved 0.5, so the
+        // border line gets off by 1
+        w -= 1;
+        h -= 1;
+    }

     m_graphicContext->DrawRoundedRectangle( x,y,w,h,radius);
 }
 
     m_graphicContext->DrawRoundedRectangle( x,y,w,h,radius);
 }
 


@@ -683,9 +752,16 @@ void wxGCDC::DoDrawEllipse(wxCoord x, wxCoord y, wxCoord w, wxCoord h)
 {
     wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoDrawEllipse - invalid DC") );
 
 {
     wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoDrawEllipse - invalid DC") );
 

-    if ( m_logicalFunction != wxCOPY )
+    if ( !m_logicalFunctionSupported )

         return;
 
         return;
 

+    if ( m_graphicContext->ShouldOffset() )
+    {
+        // if we are offsetting the entire rectangle is moved 0.5, so the
+        // border line gets off by 1
+        w -= 1;
+        h -= 1;
+    }

     m_graphicContext->DrawEllipse(x,y,w,h);
 }
 
     m_graphicContext->DrawEllipse(x,y,w,h);
 }
 


@@ -696,15 +772,27 @@ bool wxGCDC::CanDrawBitmap() const
 
 bool wxGCDC::DoBlit(
     wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
 
 bool wxGCDC::DoBlit(
     wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,

-    wxDC *source, wxCoord xsrc, wxCoord ysrc, int logical_func , bool WXUNUSED(useMask),
+    wxDC *source, wxCoord xsrc, wxCoord ysrc, int logical_func , bool useMask,

     wxCoord xsrcMask, wxCoord ysrcMask )
 {
     wxCoord xsrcMask, wxCoord ysrcMask )
 {

-    wxCHECK_MSG( Ok(), false, wxT("wxGCDC(cg)::DoBlit - invalid DC") );
-    wxCHECK_MSG( source->Ok(), false, wxT("wxGCDC(cg)::DoBlit - invalid source DC") );
-    
+    return DoStretchBlit( xdest, ydest, width, height,
+        source, xsrc, ysrc, width, height, logical_func, useMask,
+        xsrcMask,ysrcMask );
+}
+
+bool wxGCDC::DoStretchBlit(
+    wxCoord xdest, wxCoord ydest, wxCoord dstWidth, wxCoord dstHeight,
+    wxDC *source, wxCoord xsrc, wxCoord ysrc, wxCoord srcWidth, wxCoord srcHeight,
+    int logical_func , bool WXUNUSED(useMask),
+    wxCoord xsrcMask, wxCoord ysrcMask )
+{
+    wxCHECK_MSG( Ok(), false, wxT("wxGCDC(cg)::DoStretchBlit - invalid DC") );
+    wxCHECK_MSG( source->Ok(), false, wxT("wxGCDC(cg)::DoStretchBlit - invalid source DC") );
+

     if ( logical_func == wxNO_OP )
         return true;
     if ( logical_func == wxNO_OP )
         return true;

-    else if ( logical_func != wxCOPY )
+    else if ( !m_graphicContext->SetLogicalFunction( logical_func ) )
+    

     {
         wxFAIL_MSG( wxT("Blitting is only supported with wxCOPY logical operation.") );
         return false;
     {
         wxFAIL_MSG( wxT("Blitting is only supported with wxCOPY logical operation.") );
         return false;


@@ -716,14 +804,27 @@ bool wxGCDC::DoBlit(
         ysrcMask = ysrc;
     }
 
         ysrcMask = ysrc;
     }
 

-    wxRect subrect(source-> LogicalToDeviceX(xsrc),source-> LogicalToDeviceY(ysrc),
-        source-> LogicalToDeviceXRel(width),source-> LogicalToDeviceYRel(height));
-        
+    wxRect subrect(source->LogicalToDeviceX(xsrc),
+                   source->LogicalToDeviceY(ysrc),
+                   source->LogicalToDeviceXRel(srcWidth),
+                   source->LogicalToDeviceYRel(srcHeight));
+
+    // if needed clip the subrect down to the size of the source DC
+    wxCoord sw, sh;
+    source->GetSize(&sw, &sh);
+    sw = source->LogicalToDeviceXRel(sw);
+    sh = source->LogicalToDeviceYRel(sh);
+    if (subrect.x + subrect.width > sw)
+        subrect.width = sw - subrect.x;
+    if (subrect.y + subrect.height > sh)
+        subrect.height = sh - subrect.y;
+

     wxBitmap blit = source->GetAsBitmap( &subrect );
     wxBitmap blit = source->GetAsBitmap( &subrect );

-        
+

     if ( blit.Ok() )
     {
     if ( blit.Ok() )
     {

-        m_graphicContext->DrawBitmap( blit, xdest , ydest , width , height );
+        m_graphicContext->DrawBitmap( blit, xdest, ydest,
+                                      dstWidth, dstHeight);

     }
     else
     {
     }
     else
     {


@@ -731,6 +832,9 @@ bool wxGCDC::DoBlit(
         return false;
     }
 
         return false;
     }
 

+    // reset logical function
+    m_graphicContext->SetLogicalFunction( m_logicalFunction );
+

     return true;
 }
 
     return true;
 }
 


@@ -741,10 +845,13 @@ void wxGCDC::DoDrawRotatedText(const wxString& str, wxCoord x, wxCoord y,
 
     if ( str.length() == 0 )
         return;
 
     if ( str.length() == 0 )
         return;

-    if ( m_logicalFunction != wxCOPY )
+    if ( !m_logicalFunctionSupported )

         return;
 
         return;
 

-     m_graphicContext->DrawText( str, x ,y , DegToRad(angle ));
+    if ( m_backgroundMode == wxTRANSPARENT )
+        m_graphicContext->DrawText( str, x ,y , DegToRad(angle ));
+    else
+        m_graphicContext->DrawText( str, x ,y , DegToRad(angle ), m_graphicContext->CreateBrush( wxBrush(m_textBackgroundColour,wxSOLID) ) );

 }
 
 void wxGCDC::DoDrawText(const wxString& str, wxCoord x, wxCoord y)
 }
 
 void wxGCDC::DoDrawText(const wxString& str, wxCoord x, wxCoord y)


@@ -753,10 +860,14 @@ void wxGCDC::DoDrawText(const wxString& str, wxCoord x, wxCoord y)
 
     if ( str.length() == 0 )
         return;
 
     if ( str.length() == 0 )
         return;

-    if ( m_logicalFunction != wxCOPY )
+
+    if ( !m_logicalFunctionSupported )

         return;
 
         return;
 

-    m_graphicContext->DrawText( str, x ,y);
+    if ( m_backgroundMode == wxTRANSPARENT )
+        m_graphicContext->DrawText( str, x ,y);
+    else
+        m_graphicContext->DrawText( str, x ,y , m_graphicContext->CreateBrush( wxBrush(m_textBackgroundColour,wxSOLID) ) );

 }
 
 bool wxGCDC::CanGetTextExtent() const
 }
 
 bool wxGCDC::CanGetTextExtent() const


@@ -768,7 +879,7 @@ bool wxGCDC::CanGetTextExtent() const
 
 void wxGCDC::DoGetTextExtent( const wxString &str, wxCoord *width, wxCoord *height,
                               wxCoord *descent, wxCoord *externalLeading ,
 
 void wxGCDC::DoGetTextExtent( const wxString &str, wxCoord *width, wxCoord *height,
                               wxCoord *descent, wxCoord *externalLeading ,

-                              wxFont *theFont ) const
+                              const wxFont *theFont ) const

 {
     wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoGetTextExtent - invalid DC") );
 
 {
     wxCHECK_RET( Ok(), wxT("wxGCDC(cg)::DoGetTextExtent - invalid DC") );
 


@@ -782,13 +893,13 @@ void wxGCDC::DoGetTextExtent( const wxString &str, wxCoord *width, wxCoord *heig
     m_graphicContext->GetTextExtent( str, &w, &h, &d, &e );
 
     if ( height )
     m_graphicContext->GetTextExtent( str, &w, &h, &d, &e );
 
     if ( height )

-        *height = h;
+        *height = (wxCoord)(h+0.5);

     if ( descent )
     if ( descent )

-        *descent = d;
+        *descent = (wxCoord)(d+0.5);

     if ( externalLeading )
     if ( externalLeading )

-        *externalLeading =e;
+        *externalLeading = (wxCoord)(e+0.5);

     if ( width )
     if ( width )

-        *width = w;
+        *width = (wxCoord)(w+0.5);

 
     if ( theFont )
     {
 
     if ( theFont )
     {


@@ -837,14 +948,14 @@ void wxGCDC::Clear(void)
     wxPen p = *wxTRANSPARENT_PEN;
     m_graphicContext->SetPen( p );
     DoDrawRectangle( 0, 0, 32000 , 32000 );
     wxPen p = *wxTRANSPARENT_PEN;
     m_graphicContext->SetPen( p );
     DoDrawRectangle( 0, 0, 32000 , 32000 );

-    m_graphicContext->SetPen( m_pen );    
+    m_graphicContext->SetPen( m_pen );

     m_graphicContext->SetBrush( m_brush );
 }
 
 void wxGCDC::DoGetSize(int *width, int *height) const
 {
     m_graphicContext->SetBrush( m_brush );
 }
 
 void wxGCDC::DoGetSize(int *width, int *height) const
 {

-    *width = 1000;
-    *height = 1000;
+    *width = 10000;
+    *height = 10000;

 }
 
 void wxGCDC::DoGradientFillLinear(const wxRect& rect,
 }
 
 void wxGCDC::DoGradientFillLinear(const wxRect& rect,