X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/0024ec50861d01a82bca4b2a2a9ad6502d945aa0..404b319a85dadd7decf7a5a5331020520031a41c:/src/msw/graphics.cpp?ds=sidebyside

diff --git a/src/msw/graphics.cpp b/src/msw/graphics.cpp
index dbed8ff5c2..8f1844b093 100644
--- a/src/msw/graphics.cpp
+++ b/src/msw/graphics.cpp
@@ -11,37 +11,50 @@
 
 #include "wx/wxprec.h"
 
-#include "wx/dc.h"
-
 #ifdef __BORLANDC__
-#pragma hdrstop
+    #pragma hdrstop
 #endif
 
+#include "wx/dc.h"
+
 #if wxUSE_GRAPHICS_CONTEXT
 
 #ifndef WX_PRECOMP
-#include "wx/msw/wrapcdlg.h"
-#include "wx/image.h"
-#include "wx/window.h"
-#include "wx/dc.h"
-#include "wx/utils.h"
-#include "wx/dialog.h"
-#include "wx/app.h"
-#include "wx/bitmap.h"
-#include "wx/dcmemory.h"
-#include "wx/log.h"
-#include "wx/icon.h"
-#include "wx/dcprint.h"
-#include "wx/module.h"
+    #include "wx/msw/wrapcdlg.h"
+    #include "wx/image.h"
+    #include "wx/window.h"
+    #include "wx/utils.h"
+    #include "wx/dialog.h"
+    #include "wx/app.h"
+    #include "wx/bitmap.h"
+    #include "wx/log.h"
+    #include "wx/icon.h"
+    #include "wx/module.h"
+    // include all dc types that are used as a param
+    #include "wx/dc.h"
+    #include "wx/dcclient.h"
+    #include "wx/dcmemory.h"
+    #include "wx/dcprint.h"
 #endif
 
-#include "wx/graphics.h"
+#include "wx/stack.h"
+
+#include "wx/private/graphics.h"
+#include "wx/msw/wrapgdip.h"
+#include "wx/msw/dc.h"
+#if wxUSE_ENH_METAFILE
+    #include "wx/msw/enhmeta.h"
+#endif
+#include "wx/dcgraph.h"
 
-#include <vector>
+#include "wx/msw/private.h" // needs to be before #include <commdlg.h>
 
-using namespace std;
+#if wxUSE_COMMON_DIALOGS && !defined(__WXMICROWIN__)
+#include <commdlg.h>
+#endif
 
-#include "wx/msw/wrapgdip.h"
+namespace
+{
 
 //-----------------------------------------------------------------------------
 // constants
@@ -53,11 +66,44 @@ const double RAD2DEG = 180.0 / M_PI;
 // Local functions
 //-----------------------------------------------------------------------------
 
-static inline double dmin(double a, double b) { return a < b ? a : b; }
-static inline double dmax(double a, double b) { return a > b ? a : b; }
+inline double dmin(double a, double b) { return a < b ? a : b; }
+inline double dmax(double a, double b) { return a > b ? a : b; }
+
+inline double DegToRad(double deg) { return (deg * M_PI) / 180.0; }
+inline double RadToDeg(double deg) { return (deg * 180.0) / M_PI; }
+
+// translate a wxColour to a Color
+inline Color wxColourToColor(const wxColour& col)
+{
+    return Color(col.Alpha(), col.Red(), col.Green(), col.Blue());
+}
+
+// Do not use this pointer directly, it's only used by
+// GetDrawTextStringFormat() and the cleanup code in wxGDIPlusRendererModule.
+StringFormat* gs_drawTextStringFormat = NULL;
+
+// Get the string format used for the text drawing and measuring functions:
+// notice that it must be the same one for all of them, otherwise the drawn
+// text might be of different size than what measuring it returned.
+inline StringFormat* GetDrawTextStringFormat()
+{
+    if ( !gs_drawTextStringFormat )
+    {
+        gs_drawTextStringFormat = new StringFormat(StringFormat::GenericTypographic());
+
+        // This doesn't make any difference for DrawText() actually but we want
+        // this behaviour when measuring text.
+        gs_drawTextStringFormat->SetFormatFlags
+        (
+            gs_drawTextStringFormat->GetFormatFlags()
+                | StringFormatFlagsMeasureTrailingSpaces
+        );
+    }
+
+    return gs_drawTextStringFormat;
+}
 
-static inline double DegToRad(double deg) { return (deg * M_PI) / 180.0; }
-static inline double RadToDeg(double deg) { return (deg * 180.0) / M_PI; }
+} // anonymous namespace
 
 //-----------------------------------------------------------------------------
 // device context implementation
@@ -75,13 +121,9 @@ static inline double RadToDeg(double deg) { return (deg * 180.0) / M_PI; }
 // wxGraphicsPath implementation
 //-----------------------------------------------------------------------------
 
-#include "wx/msw/private.h" // needs to be before #include <commdlg.h>
-
-#if wxUSE_COMMON_DIALOGS && !defined(__WXMICROWIN__)
-#include <commdlg.h>
-#endif
+class wxGDIPlusContext;
 
-class WXDLLIMPEXP_CORE wxGDIPlusPathData : public wxGraphicsPathData
+class wxGDIPlusPathData : public wxGraphicsPathData
 {
 public :
     wxGDIPlusPathData(wxGraphicsRenderer* renderer, GraphicsPath* path = NULL);
@@ -143,13 +185,13 @@ public :
     // gets the bounding box enclosing all points (possibly including control points)
     virtual void GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *h) const;
 
-    virtual bool Contains( wxDouble x, wxDouble y, int fillStyle = wxODDEVEN_RULE) const;
+    virtual bool Contains( wxDouble x, wxDouble y, wxPolygonFillMode fillStyle = wxODDEVEN_RULE) const;
 
 private :
     GraphicsPath* m_path;
 };
 
-class WXDLLIMPEXP_CORE wxGDIPlusMatrixData : public wxGraphicsMatrixData
+class wxGDIPlusMatrixData : public wxGraphicsMatrixData
 {
 public :
     wxGDIPlusMatrixData(wxGraphicsRenderer* renderer, Matrix* matrix = NULL) ;
@@ -206,7 +248,7 @@ private:
     Matrix* m_matrix ;
 } ;
 
-class WXDLLIMPEXP_CORE wxGDIPlusPenData : public wxGraphicsObjectRefData
+class wxGDIPlusPenData : public wxGraphicsObjectRefData
 {
 public:
     wxGDIPlusPenData( wxGraphicsRenderer* renderer, const wxPen &pen );
@@ -225,48 +267,92 @@ protected :
     wxDouble m_width;
 };
 
-class WXDLLIMPEXP_CORE wxGDIPlusBrushData : public wxGraphicsObjectRefData
+class wxGDIPlusBrushData : public wxGraphicsObjectRefData
 {
 public:
     wxGDIPlusBrushData( wxGraphicsRenderer* renderer );
     wxGDIPlusBrushData( wxGraphicsRenderer* renderer, const wxBrush &brush );
     ~wxGDIPlusBrushData ();
 
-    void CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
-        const wxColour&c1, const wxColour&c2 );
-    void CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
-        const wxColour &oColor, const wxColour &cColor );
+    void CreateLinearGradientBrush(wxDouble x1, wxDouble y1,
+                                   wxDouble x2, wxDouble y2,
+                                   const wxGraphicsGradientStops& stops);
+    void CreateRadialGradientBrush(wxDouble xo, wxDouble yo,
+                                   wxDouble xc, wxDouble yc,
+                                   wxDouble radius,
+                                   const wxGraphicsGradientStops& stops);
+
     virtual Brush* GetGDIPlusBrush() { return m_brush; }
 
 protected:
     virtual void Init();
 
-private :
+private:
+    // common part of Create{Linear,Radial}GradientBrush()
+    template <typename T>
+    void SetGradientStops(T *brush, const wxGraphicsGradientStops& stops);
+
     Brush* m_brush;
     Image* m_brushImage;
     GraphicsPath* m_brushPath;
 };
 
-class WXDLLIMPEXP_CORE wxGDIPlusFontData : public wxGraphicsObjectRefData
+class WXDLLIMPEXP_CORE wxGDIPlusBitmapData : public wxGraphicsBitmapData
+{
+public:
+    wxGDIPlusBitmapData( wxGraphicsRenderer* renderer, Bitmap* bitmap );
+    wxGDIPlusBitmapData( wxGraphicsRenderer* renderer, const wxBitmap &bmp );
+    ~wxGDIPlusBitmapData ();
+
+    virtual Bitmap* GetGDIPlusBitmap() { return m_bitmap; }
+    virtual void* GetNativeBitmap() const { return m_bitmap; }
+
+#if wxUSE_IMAGE
+    wxImage ConvertToImage() const;
+#endif // wxUSE_IMAGE
+
+private :
+    Bitmap* m_bitmap;
+    Bitmap* m_helper;
+};
+
+class wxGDIPlusFontData : public wxGraphicsObjectRefData
 {
 public:
-    wxGDIPlusFontData( wxGraphicsRenderer* renderer, const wxFont &font, const wxColour& col );
+    wxGDIPlusFontData( wxGraphicsRenderer* renderer,
+                       const wxFont &font,
+                       const wxColour& col );
+    wxGDIPlusFontData(wxGraphicsRenderer* renderer,
+                      const wxString& name,
+                      REAL sizeInPixels,
+                      int style,
+                      const wxColour& col);
     ~wxGDIPlusFontData();
 
     virtual Brush* GetGDIPlusBrush() { return m_textBrush; }
     virtual Font* GetGDIPlusFont() { return m_font; }
+
 private :
+    // Common part of all ctors, flags here is a combination of values of
+    // FontStyle GDI+ enum.
+    void Init(const wxString& name,
+              REAL size,
+              int style,
+              const wxColour& col,
+              Unit fontUnit);
+
     Brush* m_textBrush;
     Font* m_font;
 };
 
-class WXDLLIMPEXP_CORE wxGDIPlusContext : public wxGraphicsContext
+class wxGDIPlusContext : public wxGraphicsContext
 {
 public:
-    wxGDIPlusContext( wxGraphicsRenderer* renderer, HDC hdc );
+    wxGDIPlusContext( wxGraphicsRenderer* renderer, const wxDC& dc );
+    wxGDIPlusContext( wxGraphicsRenderer* renderer, HDC hdc, wxDouble width, wxDouble height );
     wxGDIPlusContext( wxGraphicsRenderer* renderer, HWND hwnd );
     wxGDIPlusContext( wxGraphicsRenderer* renderer, Graphics* gr);
-    wxGDIPlusContext();
+    wxGDIPlusContext(wxGraphicsRenderer* renderer);
 
     virtual ~wxGDIPlusContext();
 
@@ -280,7 +366,32 @@ public:
     virtual void * GetNativeContext();
 
     virtual void StrokePath( const wxGraphicsPath& p );
-    virtual void FillPath( const wxGraphicsPath& p , int fillStyle = wxODDEVEN_RULE );
+    virtual void FillPath( const wxGraphicsPath& p , wxPolygonFillMode fillStyle = wxODDEVEN_RULE );
+
+    virtual void DrawRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h ); 
+
+    // stroke lines connecting each of the points
+    virtual void StrokeLines( size_t n, const wxPoint2DDouble *points);
+
+    // We don't have any specific implementation for this one in wxMSW but
+    // override it just to avoid warnings about hiding the base class virtual.
+    virtual void StrokeLines( size_t n, const wxPoint2DDouble *beginPoints, const wxPoint2DDouble *endPoints)
+    {
+        wxGraphicsContext::StrokeLines(n, beginPoints, endPoints);
+    }
+
+    // draws a polygon
+    virtual void DrawLines( size_t n, const wxPoint2DDouble *points, wxPolygonFillMode fillStyle = wxODDEVEN_RULE );
+
+    virtual bool SetAntialiasMode(wxAntialiasMode antialias);
+
+    virtual bool SetInterpolationQuality(wxInterpolationQuality interpolation);
+    
+    virtual bool SetCompositionMode(wxCompositionMode op);
+
+    virtual void BeginLayer(wxDouble opacity);
+
+    virtual void EndLayer();
 
     virtual void Translate( wxDouble dx , wxDouble dy );
     virtual void Scale( wxDouble xScale , wxDouble yScale );
@@ -295,28 +406,201 @@ public:
     // gets the matrix of this context
     virtual wxGraphicsMatrix GetTransform() const;
 
+    virtual void DrawBitmap( const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h );
     virtual void DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h );
     virtual void DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxDouble w, wxDouble h );
     virtual void PushState();
     virtual void PopState();
 
-    virtual void DrawText( const wxString &str, wxDouble x, wxDouble y);
     virtual void GetTextExtent( const wxString &str, wxDouble *width, wxDouble *height,
         wxDouble *descent, wxDouble *externalLeading ) const;
     virtual void GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const;
+    virtual bool ShouldOffset() const;
+    virtual void GetSize( wxDouble* width, wxDouble *height );
+
+    Graphics* GetGraphics() const { return m_context; }
+
+protected:
+
+    wxDouble m_fontScaleRatio;
+
+    // Used from ctors (including those in the derived classes) and takes
+    // ownership of the graphics pointer that must be non-NULL.
+    void Init(Graphics* graphics, int width, int height);
 
 private:
-    void    Init();
-    void    SetDefaults();
+    virtual void DoDrawText(const wxString& str, wxDouble x, wxDouble y);
 
     Graphics* m_context;
-    vector<GraphicsState> m_stateStack;
+    wxStack<GraphicsState> m_stateStack;
     GraphicsState m_state1;
     GraphicsState m_state2;
 
-    DECLARE_DYNAMIC_CLASS_NO_COPY(wxGDIPlusContext)
+    wxDECLARE_NO_COPY_CLASS(wxGDIPlusContext);
+};
+
+#if wxUSE_IMAGE
+
+class wxGDIPlusImageContext : public wxGDIPlusContext
+{
+public:
+    wxGDIPlusImageContext(wxGraphicsRenderer* renderer, wxImage& image) :
+        wxGDIPlusContext(renderer),
+        m_image(image),
+        m_bitmap(renderer, image)
+    {
+        Init
+        (
+            new Graphics(m_bitmap.GetGDIPlusBitmap()),
+            image.GetWidth(),
+            image.GetHeight()
+        );
+    }
+
+    virtual ~wxGDIPlusImageContext()
+    {
+        m_image = m_bitmap.ConvertToImage();
+    }
+
+private:
+    wxImage& m_image;
+    wxGDIPlusBitmapData m_bitmap;
+
+    wxDECLARE_NO_COPY_CLASS(wxGDIPlusImageContext);
+};
+
+#endif // wxUSE_IMAGE
+
+class wxGDIPlusMeasuringContext : public wxGDIPlusContext
+{
+public:
+    wxGDIPlusMeasuringContext( wxGraphicsRenderer* renderer ) : wxGDIPlusContext( renderer , m_hdc = GetDC(NULL), 1000, 1000 )
+    {
+    }
+
+    virtual ~wxGDIPlusMeasuringContext()
+    {
+        ReleaseDC( NULL, m_hdc );
+    }
+
+private:
+    HDC m_hdc ;
+} ;
+
+class wxGDIPlusPrintingContext : public wxGDIPlusContext
+{
+public:
+    wxGDIPlusPrintingContext( wxGraphicsRenderer* renderer, const wxDC& dc );
+    virtual ~wxGDIPlusPrintingContext() { }
+protected:
 };
 
+//-----------------------------------------------------------------------------
+// wxGDIPlusRenderer declaration
+//-----------------------------------------------------------------------------
+
+class wxGDIPlusRenderer : public wxGraphicsRenderer
+{
+public :
+    wxGDIPlusRenderer()
+    {
+        m_loaded = -1;
+        m_gditoken = 0;
+    }
+
+    virtual ~wxGDIPlusRenderer()
+    {
+        if ( m_loaded == 1 )
+        {
+            Unload();
+        }
+    }
+
+    // Context
+
+    virtual wxGraphicsContext * CreateContext( const wxWindowDC& dc);
+
+    virtual wxGraphicsContext * CreateContext( const wxMemoryDC& dc);
+
+#if wxUSE_PRINTING_ARCHITECTURE
+    virtual wxGraphicsContext * CreateContext( const wxPrinterDC& dc);
+#endif
+
+#if wxUSE_ENH_METAFILE
+    virtual wxGraphicsContext * CreateContext( const wxEnhMetaFileDC& dc);
+#endif
+
+    virtual wxGraphicsContext * CreateContextFromNativeContext( void * context );
+
+    virtual wxGraphicsContext * CreateContextFromNativeWindow( void * window );
+
+    virtual wxGraphicsContext * CreateContext( wxWindow* window );
+
+#if wxUSE_IMAGE
+    virtual wxGraphicsContext * CreateContextFromImage(wxImage& image);
+#endif // wxUSE_IMAGE
+
+    virtual wxGraphicsContext * CreateMeasuringContext();
+
+    // Path
+
+    virtual wxGraphicsPath CreatePath();
+
+    // Matrix
+
+    virtual wxGraphicsMatrix CreateMatrix( wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0,
+        wxDouble tx=0.0, wxDouble ty=0.0);
+
+
+    virtual wxGraphicsPen CreatePen(const wxPen& pen) ;
+
+    virtual wxGraphicsBrush CreateBrush(const wxBrush& brush ) ;
+
+    virtual wxGraphicsBrush
+    CreateLinearGradientBrush(wxDouble x1, wxDouble y1,
+                              wxDouble x2, wxDouble y2,
+                              const wxGraphicsGradientStops& stops);
+
+    virtual wxGraphicsBrush
+    CreateRadialGradientBrush(wxDouble xo, wxDouble yo,
+                              wxDouble xc, wxDouble yc,
+                              wxDouble radius,
+                              const wxGraphicsGradientStops& stops);
+
+    // create a native bitmap representation
+    virtual wxGraphicsBitmap CreateBitmap( const wxBitmap &bitmap );
+#if wxUSE_IMAGE
+    virtual wxGraphicsBitmap CreateBitmapFromImage(const wxImage& image);
+    virtual wxImage CreateImageFromBitmap(const wxGraphicsBitmap& bmp);
+#endif // wxUSE_IMAGE
+
+    virtual wxGraphicsFont CreateFont( const wxFont& font,
+                                       const wxColour& col);
+
+    virtual wxGraphicsFont CreateFont(double size,
+                                      const wxString& facename,
+                                      int flags = wxFONTFLAG_DEFAULT,
+                                      const wxColour& col = *wxBLACK);
+
+    // create a graphics bitmap from a native bitmap
+    virtual wxGraphicsBitmap CreateBitmapFromNativeBitmap( void* bitmap );
+
+    // create a subimage from a native image representation
+    virtual wxGraphicsBitmap CreateSubBitmap( const wxGraphicsBitmap &bitmap, wxDouble x, wxDouble y, wxDouble w, wxDouble h  );
+
+protected :
+    bool EnsureIsLoaded();
+    void Load();
+    void Unload();
+    friend class wxGDIPlusRendererModule;
+
+private :
+    int m_loaded;
+    ULONG_PTR m_gditoken;
+
+    DECLARE_DYNAMIC_CLASS_NO_COPY(wxGDIPlusRenderer)
+} ;
+
 //-----------------------------------------------------------------------------
 // wxGDIPlusPen implementation
 //-----------------------------------------------------------------------------
@@ -343,8 +627,7 @@ wxGDIPlusPenData::wxGDIPlusPenData( wxGraphicsRenderer* renderer, const wxPen &p
     if (m_width <= 0.0)
         m_width = 0.1;
 
-    m_pen = new Pen(Color( pen.GetColour().Alpha() , pen.GetColour().Red() ,
-        pen.GetColour().Green() , pen.GetColour().Blue() ), m_width );
+    m_pen = new Pen(wxColourToColor(pen.GetColour()), m_width );
 
     LineCap cap;
     switch ( pen.GetCap() )
@@ -394,25 +677,25 @@ wxGDIPlusPenData::wxGDIPlusPenData( wxGraphicsRenderer* renderer, const wxPen &p
     DashStyle dashStyle = DashStyleSolid;
     switch ( pen.GetStyle() )
     {
-    case wxSOLID :
+    case wxPENSTYLE_SOLID :
         break;
 
-    case wxDOT :
+    case wxPENSTYLE_DOT :
         dashStyle = DashStyleDot;
         break;
 
-    case wxLONG_DASH :
+    case wxPENSTYLE_LONG_DASH :
         dashStyle = DashStyleDash; // TODO verify
         break;
 
-    case wxSHORT_DASH :
+    case wxPENSTYLE_SHORT_DASH :
         dashStyle = DashStyleDash;
         break;
 
-    case wxDOT_DASH :
+    case wxPENSTYLE_DOT_DASH :
         dashStyle = DashStyleDashDot;
         break;
-    case wxUSER_DASH :
+    case wxPENSTYLE_USER_DASH :
         {
             dashStyle = DashStyleCustom;
             wxDash *dashes;
@@ -429,12 +712,18 @@ wxGDIPlusPenData::wxGDIPlusPenData( wxGraphicsRenderer* renderer, const wxPen &p
             }
         }
         break;
-    case wxSTIPPLE :
+    case wxPENSTYLE_STIPPLE :
         {
             wxBitmap* bmp = pen.GetStipple();
-            if ( bmp && bmp->Ok() )
+            if ( bmp && bmp->IsOk() )
             {
-                m_penImage = Bitmap::FromHBITMAP((HBITMAP)bmp->GetHBITMAP(),(HPALETTE)bmp->GetPalette()->GetHPALETTE());
+                m_penImage = Bitmap::FromHBITMAP((HBITMAP)bmp->GetHBITMAP(),
+#if wxUSE_PALETTE
+                    (HPALETTE)bmp->GetPalette()->GetHPALETTE()
+#else
+                    NULL
+#endif
+                );
                 m_penBrush = new TextureBrush(m_penImage);
                 m_pen->SetBrush( m_penBrush );
             }
@@ -442,33 +731,39 @@ wxGDIPlusPenData::wxGDIPlusPenData( wxGraphicsRenderer* renderer, const wxPen &p
         }
         break;
     default :
-        if ( pen.GetStyle() >= wxFIRST_HATCH && pen.GetStyle() <= wxLAST_HATCH )
+        if ( pen.GetStyle() >= wxPENSTYLE_FIRST_HATCH &&
+             pen.GetStyle() <= wxPENSTYLE_LAST_HATCH )
         {
-            HatchStyle style = HatchStyleHorizontal;
+            HatchStyle style;
             switch( pen.GetStyle() )
             {
-            case wxBDIAGONAL_HATCH :
+            case wxPENSTYLE_BDIAGONAL_HATCH :
                 style = HatchStyleBackwardDiagonal;
                 break ;
-            case wxCROSSDIAG_HATCH :
+            case wxPENSTYLE_CROSSDIAG_HATCH :
                 style = HatchStyleDiagonalCross;
                 break ;
-            case wxFDIAGONAL_HATCH :
+            case wxPENSTYLE_FDIAGONAL_HATCH :
                 style = HatchStyleForwardDiagonal;
                 break ;
-            case wxCROSS_HATCH :
+            case wxPENSTYLE_CROSS_HATCH :
                 style = HatchStyleCross;
                 break ;
-            case wxHORIZONTAL_HATCH :
+            case wxPENSTYLE_HORIZONTAL_HATCH :
                 style = HatchStyleHorizontal;
                 break ;
-            case wxVERTICAL_HATCH :
+            case wxPENSTYLE_VERTICAL_HATCH :
                 style = HatchStyleVertical;
                 break ;
-
+            default:
+                style = HatchStyleHorizontal;
             }
-            m_penBrush = new HatchBrush(style,Color( pen.GetColour().Alpha() , pen.GetColour().Red() ,
-                pen.GetColour().Green() , pen.GetColour().Blue() ), Color::Transparent );
+            m_penBrush = new HatchBrush
+                             (
+                                style,
+                                wxColourToColor(pen.GetColour()),
+                                Color::Transparent
+                             );
             m_pen->SetBrush( m_penBrush );
         }
         break;
@@ -493,44 +788,54 @@ wxGDIPlusBrushData::wxGDIPlusBrushData( wxGraphicsRenderer* renderer , const wxB
     Init();
     if ( brush.GetStyle() == wxSOLID)
     {
-        m_brush = new SolidBrush( Color( brush.GetColour().Alpha() , brush.GetColour().Red() ,
-            brush.GetColour().Green() , brush.GetColour().Blue() ) );
+        m_brush = new SolidBrush(wxColourToColor( brush.GetColour()));
     }
     else if ( brush.IsHatch() )
     {
-        HatchStyle style = HatchStyleHorizontal;
+        HatchStyle style;
         switch( brush.GetStyle() )
         {
-        case wxBDIAGONAL_HATCH :
+        case wxBRUSHSTYLE_BDIAGONAL_HATCH :
             style = HatchStyleBackwardDiagonal;
             break ;
-        case wxCROSSDIAG_HATCH :
+        case wxBRUSHSTYLE_CROSSDIAG_HATCH :
             style = HatchStyleDiagonalCross;
             break ;
-        case wxFDIAGONAL_HATCH :
+        case wxBRUSHSTYLE_FDIAGONAL_HATCH :
             style = HatchStyleForwardDiagonal;
             break ;
-        case wxCROSS_HATCH :
+        case wxBRUSHSTYLE_CROSS_HATCH :
             style = HatchStyleCross;
             break ;
-        case wxHORIZONTAL_HATCH :
+        case wxBRUSHSTYLE_HORIZONTAL_HATCH :
             style = HatchStyleHorizontal;
             break ;
-        case wxVERTICAL_HATCH :
+        case wxBRUSHSTYLE_VERTICAL_HATCH :
             style = HatchStyleVertical;
             break ;
-
+        default:
+            style = HatchStyleHorizontal;
         }
-        m_brush = new HatchBrush(style,Color( brush.GetColour().Alpha() , brush.GetColour().Red() ,
-            brush.GetColour().Green() , brush.GetColour().Blue() ), Color::Transparent );
+        m_brush = new HatchBrush
+                      (
+                        style,
+                        wxColourToColor(brush.GetColour()),
+                        Color::Transparent
+                      );
     }
     else
     {
         wxBitmap* bmp = brush.GetStipple();
-        if ( bmp && bmp->Ok() )
+        if ( bmp && bmp->IsOk() )
         {
             wxDELETE( m_brushImage );
-            m_brushImage = Bitmap::FromHBITMAP((HBITMAP)bmp->GetHBITMAP(),(HPALETTE)bmp->GetPalette()->GetHPALETTE());
+            m_brushImage = Bitmap::FromHBITMAP((HBITMAP)bmp->GetHBITMAP(),
+#if wxUSE_PALETTE
+                (HPALETTE)bmp->GetPalette()->GetHPALETTE()
+#else
+                NULL
+#endif
+            );
             m_brush = new TextureBrush(m_brushImage);
         }
     }
@@ -550,42 +855,90 @@ void wxGDIPlusBrushData::Init()
     m_brushPath= NULL;
 }
 
-void wxGDIPlusBrushData::CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2, const wxColour&c1, const wxColour&c2)
+template <typename T>
+void
+wxGDIPlusBrushData::SetGradientStops(T *brush,
+        const wxGraphicsGradientStops& stops)
+{
+    const unsigned numStops = stops.GetCount();
+    if ( numStops <= 2 )
+    {
+        // initial and final colours are set during the brush creation, nothing
+        // more to do
+        return;
+    }
+
+    wxVector<Color> colors(numStops);
+    wxVector<REAL> positions(numStops);
+
+    for ( unsigned i = 0; i < numStops; i++ )
+    {
+        wxGraphicsGradientStop stop = stops.Item(i);
+
+        colors[i] = wxColourToColor(stop.GetColour());
+        positions[i] = stop.GetPosition();
+    }
+
+    brush->SetInterpolationColors(&colors[0], &positions[0], numStops);
+}
+
+void
+wxGDIPlusBrushData::CreateLinearGradientBrush(wxDouble x1, wxDouble y1,
+                                              wxDouble x2, wxDouble y2,
+                                              const wxGraphicsGradientStops& stops)
 {
-    m_brush = new LinearGradientBrush( PointF( x1,y1) , PointF( x2,y2),
-        Color( c1.Alpha(), c1.Red(),c1.Green() , c1.Blue() ),
-        Color( c2.Alpha(), c2.Red(),c2.Green() , c2.Blue() ));
+    LinearGradientBrush * const
+        brush = new LinearGradientBrush(PointF(x1, y1) , PointF(x2, y2),
+                                        wxColourToColor(stops.GetStartColour()),
+                                        wxColourToColor(stops.GetEndColour()));
+    m_brush =  brush;
+
+    SetGradientStops(brush, stops);
 }
 
-void wxGDIPlusBrushData::CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
-                                               const wxColour &oColor, const wxColour &cColor)
+void
+wxGDIPlusBrushData::CreateRadialGradientBrush(wxDouble xo, wxDouble yo,
+                                              wxDouble xc, wxDouble yc,
+                                              wxDouble radius,
+                                              const wxGraphicsGradientStops& stops)
 {
-    // Create a path that consists of a single circle.
     m_brushPath = new GraphicsPath();
-    m_brushPath->AddEllipse( (REAL)(xc-radius), (REAL)(yc-radius), (REAL)(2*radius), (REAL)(2*radius));
+    m_brushPath->AddEllipse( (REAL)(xc-radius), (REAL)(yc-radius),
+                             (REAL)(2*radius), (REAL)(2*radius));
 
-    PathGradientBrush *b = new PathGradientBrush(m_brushPath);
-    m_brush = b;
-    b->SetCenterPoint( PointF(xo,yo));
-    b->SetCenterColor(Color( oColor.Alpha(), oColor.Red(),oColor.Green() , oColor.Blue() ));
+    PathGradientBrush * const brush = new PathGradientBrush(m_brushPath);
+    m_brush = brush;
+    brush->SetCenterPoint(PointF(xo, yo));
+    brush->SetCenterColor(wxColourToColor(stops.GetStartColour()));
 
-    Color colors[] = {Color( cColor.Alpha(), cColor.Red(),cColor.Green() , cColor.Blue() )};
+    const Color col(wxColourToColor(stops.GetEndColour()));
     int count = 1;
-    b->SetSurroundColors(colors, &count);
+    brush->SetSurroundColors(&col, &count);
+
+    SetGradientStops(brush, stops);
 }
 
 //-----------------------------------------------------------------------------
 // wxGDIPlusFont implementation
 //-----------------------------------------------------------------------------
 
-wxGDIPlusFontData::wxGDIPlusFontData( wxGraphicsRenderer* renderer, const wxFont &font,
-                             const wxColour& col ) : wxGraphicsObjectRefData( renderer )
+void
+wxGDIPlusFontData::Init(const wxString& name,
+                        REAL size,
+                        int style,
+                        const wxColour& col,
+                        Unit fontUnit)
 {
-    m_textBrush = NULL;
-    m_font = NULL;
+    m_font = new Font(name.wc_str(), size, style, fontUnit);
+
+    m_textBrush = new SolidBrush(wxColourToColor(col));
+}
 
-    wxWCharBuffer s = font.GetFaceName().wc_str( *wxConvUI );
-    int size = font.GetPointSize();
+wxGDIPlusFontData::wxGDIPlusFontData( wxGraphicsRenderer* renderer,
+                                      const wxFont &font,
+                                      const wxColour& col )
+    : wxGraphicsObjectRefData( renderer )
+{
     int style = FontStyleRegular;
     if ( font.GetStyle() == wxFONTSTYLE_ITALIC )
         style |= FontStyleItalic;
@@ -593,9 +946,18 @@ wxGDIPlusFontData::wxGDIPlusFontData( wxGraphicsRenderer* renderer, const wxFont
         style |= FontStyleUnderline;
     if ( font.GetWeight() == wxFONTWEIGHT_BOLD )
         style |= FontStyleBold;
-    m_font = new Font( s , size , style );
-    m_textBrush = new SolidBrush( Color( col.Alpha() , col.Red() ,
-        col.Green() , col.Blue() ));
+
+    Init(font.GetFaceName(), font.GetPointSize(), style, col, UnitPoint);
+}
+
+wxGDIPlusFontData::wxGDIPlusFontData(wxGraphicsRenderer* renderer,
+                                     const wxString& name,
+                                     REAL sizeInPixels,
+                                     int style,
+                                     const wxColour& col) :
+    wxGraphicsObjectRefData(renderer)
+{
+    Init(name, sizeInPixels, style, col, UnitPixel);
 }
 
 wxGDIPlusFontData::~wxGDIPlusFontData()
@@ -604,76 +966,219 @@ wxGDIPlusFontData::~wxGDIPlusFontData()
     delete m_font;
 }
 
+// the built-in conversions functions create non-premultiplied bitmaps, while GDIPlus needs them in the
+// premultiplied format, therefore in the failing cases we create a new bitmap using the non-premultiplied
+// bytes as parameter, since there is no real copying of the data going in, only references are stored
+// m_helper has to be kept alive as well
+
 //-----------------------------------------------------------------------------
-// wxGDIPlusPath implementation
+// wxGDIPlusBitmapData implementation
 //-----------------------------------------------------------------------------
 
-wxGDIPlusPathData::wxGDIPlusPathData(wxGraphicsRenderer* renderer, GraphicsPath* path ) : wxGraphicsPathData(renderer)
+wxGDIPlusBitmapData::wxGDIPlusBitmapData( wxGraphicsRenderer* renderer, Bitmap* bitmap ) :
+    wxGraphicsBitmapData( renderer ), m_bitmap( bitmap )
 {
-    if ( path )
-        m_path = path;
-    else
-        m_path = new GraphicsPath();
+    m_helper = NULL;
 }
 
-wxGDIPlusPathData::~wxGDIPlusPathData()
+wxGDIPlusBitmapData::wxGDIPlusBitmapData( wxGraphicsRenderer* renderer,
+                        const wxBitmap &bmp) : wxGraphicsBitmapData( renderer )
 {
-    delete m_path;
-}
+    m_bitmap = NULL;
+    m_helper = NULL;
 
-wxGraphicsObjectRefData* wxGDIPlusPathData::Clone() const
-{
-    return new wxGDIPlusPathData( GetRenderer() , m_path->Clone());
-}
+    Bitmap* image = NULL;
+    if ( bmp.GetMask() )
+    {
+        Bitmap interim((HBITMAP)bmp.GetHBITMAP(),
+#if wxUSE_PALETTE
+            (HPALETTE)bmp.GetPalette()->GetHPALETTE()
+#else
+            NULL
+#endif
+        );
 
-//
-// The Primitives
-//
+        size_t width = interim.GetWidth();
+        size_t height = interim.GetHeight();
+        Rect bounds(0,0,width,height);
 
-void wxGDIPlusPathData::MoveToPoint( wxDouble x , wxDouble y )
-{
-    m_path->StartFigure();
-    m_path->AddLine((REAL) x,(REAL) y,(REAL) x,(REAL) y);
-}
+        image = new Bitmap(width,height,PixelFormat32bppPARGB) ;
 
-void wxGDIPlusPathData::AddLineToPoint( wxDouble x , wxDouble y )
-{
-    m_path->AddLine((REAL) x,(REAL) y,(REAL) x,(REAL) y);
-}
+        Bitmap interimMask((HBITMAP)bmp.GetMask()->GetMaskBitmap(),NULL);
+        wxASSERT(interimMask.GetPixelFormat() == PixelFormat1bppIndexed);
 
-void wxGDIPlusPathData::CloseSubpath()
-{
-    m_path->CloseFigure();
-}
+        BitmapData dataMask ;
+        interimMask.LockBits(&bounds,ImageLockModeRead,
+            interimMask.GetPixelFormat(),&dataMask);
 
-void wxGDIPlusPathData::AddCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble cx2, wxDouble cy2, wxDouble x, wxDouble y )
-{
-    PointF c1(cx1,cy1);
-    PointF c2(cx2,cy2);
-    PointF end(x,y);
-    PointF start;
-    m_path->GetLastPoint(&start);
-    m_path->AddBezier(start,c1,c2,end);
-}
 
-// gets the last point of the current path, (0,0) if not yet set
-void wxGDIPlusPathData::GetCurrentPoint( wxDouble* x, wxDouble* y) const
-{
-    PointF start;
-    m_path->GetLastPoint(&start);
-    *x = start.X ;
-    *y = start.Y ;
-}
+        BitmapData imageData ;
+        image->LockBits(&bounds,ImageLockModeWrite, PixelFormat32bppPARGB, &imageData);
 
-void wxGDIPlusPathData::AddArc( wxDouble x, wxDouble y, wxDouble r, double startAngle, double endAngle, bool clockwise )
-{
-    double sweepAngle = endAngle - startAngle ;
-    if( abs(sweepAngle) >= 2*M_PI)
-    {
-        sweepAngle = 2 * M_PI;
-    }
-    else
-    {
+        BYTE maskPattern = 0 ;
+        BYTE maskByte = 0;
+        size_t maskIndex ;
+
+        for ( size_t y = 0 ; y < height ; ++y)
+        {
+            maskIndex = 0 ;
+            for( size_t x = 0 ; x < width; ++x)
+            {
+                if ( x % 8 == 0)
+                {
+                    maskPattern = 0x80;
+                    maskByte = *((BYTE*)dataMask.Scan0 + dataMask.Stride*y + maskIndex);
+                    maskIndex++;
+                }
+                else
+                    maskPattern = maskPattern >> 1;
+
+                ARGB *dest = (ARGB*)((BYTE*)imageData.Scan0 + imageData.Stride*y + x*4);
+                if ( (maskByte & maskPattern) == 0 )
+                    *dest = 0x00000000;
+                else
+                {
+                    Color c ;
+                    interim.GetPixel(x,y,&c) ;
+                    *dest = (c.GetValue() | Color::AlphaMask);
+                }
+            }
+        }
+
+        image->UnlockBits(&imageData);
+
+        interimMask.UnlockBits(&dataMask);
+        interim.UnlockBits(&dataMask);
+    }
+    else
+    {
+        image = Bitmap::FromHBITMAP((HBITMAP)bmp.GetHBITMAP(),
+#if wxUSE_PALETTE
+            (HPALETTE)bmp.GetPalette()->GetHPALETTE()
+#else
+            NULL
+#endif
+        );
+        if ( bmp.HasAlpha() && GetPixelFormatSize(image->GetPixelFormat()) == 32 )
+        {
+            size_t width = image->GetWidth();
+            size_t height = image->GetHeight();
+            Rect bounds(0,0,width,height);
+            static BitmapData data ;
+
+            m_helper = image ;
+            image = NULL ;
+            m_helper->LockBits(&bounds, ImageLockModeRead,
+                m_helper->GetPixelFormat(),&data);
+
+            image = new Bitmap(data.Width, data.Height, data.Stride,
+                PixelFormat32bppPARGB , (BYTE*) data.Scan0);
+
+            m_helper->UnlockBits(&data);
+        }
+    }
+    if ( image )
+        m_bitmap = image;
+}
+
+#if wxUSE_IMAGE
+
+wxImage wxGDIPlusBitmapData::ConvertToImage() const
+{
+    // We could use Bitmap::LockBits() and convert to wxImage directly but
+    // passing by wxBitmap is easier. It would be nice to measure performance
+    // of the two methods but for this the second one would need to be written
+    // first...
+    HBITMAP hbmp;
+    if ( m_bitmap->GetHBITMAP(Color(0xffffffff), &hbmp) != Gdiplus::Ok )
+        return wxNullImage;
+
+    wxBitmap bmp;
+    bmp.SetWidth(m_bitmap->GetWidth());
+    bmp.SetHeight(m_bitmap->GetHeight());
+    bmp.SetHBITMAP(hbmp);
+    bmp.SetDepth(IsAlphaPixelFormat(m_bitmap->GetPixelFormat()) ? 32 : 24);
+    return bmp.ConvertToImage();
+}
+
+#endif // wxUSE_IMAGE
+
+wxGDIPlusBitmapData::~wxGDIPlusBitmapData()
+{
+    delete m_bitmap;
+    delete m_helper;
+}
+
+//-----------------------------------------------------------------------------
+// wxGDIPlusPath implementation
+//-----------------------------------------------------------------------------
+
+wxGDIPlusPathData::wxGDIPlusPathData(wxGraphicsRenderer* renderer, GraphicsPath* path ) : wxGraphicsPathData(renderer)
+{
+    if ( path )
+        m_path = path;
+    else
+        m_path = new GraphicsPath();
+}
+
+wxGDIPlusPathData::~wxGDIPlusPathData()
+{
+    delete m_path;
+}
+
+wxGraphicsObjectRefData* wxGDIPlusPathData::Clone() const
+{
+    return new wxGDIPlusPathData( GetRenderer() , m_path->Clone());
+}
+
+//
+// The Primitives
+//
+
+void wxGDIPlusPathData::MoveToPoint( wxDouble x , wxDouble y )
+{
+    m_path->StartFigure();
+    m_path->AddLine((REAL) x,(REAL) y,(REAL) x,(REAL) y);
+}
+
+void wxGDIPlusPathData::AddLineToPoint( wxDouble x , wxDouble y )
+{
+    m_path->AddLine((REAL) x,(REAL) y,(REAL) x,(REAL) y);
+}
+
+void wxGDIPlusPathData::CloseSubpath()
+{
+    m_path->CloseFigure();
+}
+
+void wxGDIPlusPathData::AddCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble cx2, wxDouble cy2, wxDouble x, wxDouble y )
+{
+    PointF c1(cx1,cy1);
+    PointF c2(cx2,cy2);
+    PointF end(x,y);
+    PointF start;
+    m_path->GetLastPoint(&start);
+    m_path->AddBezier(start,c1,c2,end);
+}
+
+// gets the last point of the current path, (0,0) if not yet set
+void wxGDIPlusPathData::GetCurrentPoint( wxDouble* x, wxDouble* y) const
+{
+    PointF start;
+    m_path->GetLastPoint(&start);
+    *x = start.X ;
+    *y = start.Y ;
+}
+
+void wxGDIPlusPathData::AddArc( wxDouble x, wxDouble y, wxDouble r, double startAngle, double endAngle, bool clockwise )
+{
+    double sweepAngle = endAngle - startAngle ;
+    if( fabs(sweepAngle) >= 2*M_PI)
+    {
+        sweepAngle = 2 * M_PI;
+    }
+    else
+    {
         if ( clockwise )
         {
             if( sweepAngle < 0 )
@@ -717,7 +1222,7 @@ void wxGDIPlusPathData::GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *
     *h = bounds.Height;
 }
 
-bool wxGDIPlusPathData::Contains( wxDouble x, wxDouble y, int fillStyle ) const
+bool wxGDIPlusPathData::Contains( wxDouble x, wxDouble y, wxPolygonFillMode fillStyle ) const
 {
     m_path->SetFillMode( fillStyle == wxODDEVEN_RULE ? FillModeAlternate : FillModeWinding);
     return m_path->IsVisible( (FLOAT) x,(FLOAT) y) == TRUE ;
@@ -810,7 +1315,7 @@ void wxGDIPlusMatrixData::Scale( wxDouble xScale , wxDouble yScale )
 // add the rotation to this matrix (radians)
 void wxGDIPlusMatrixData::Rotate( wxDouble angle )
 {
-    m_matrix->Rotate( angle );
+    m_matrix->Rotate( RadToDeg(angle) );
 }
 
 //
@@ -845,47 +1350,77 @@ void * wxGDIPlusMatrixData::GetNativeMatrix() const
 // wxGDIPlusContext implementation
 //-----------------------------------------------------------------------------
 
-IMPLEMENT_DYNAMIC_CLASS(wxGDIPlusContext,wxGraphicsContext)
+class wxGDIPlusOffsetHelper
+{
+public :
+    wxGDIPlusOffsetHelper( Graphics* gr , bool offset )
+    {
+        m_gr = gr;
+        m_offset = offset;
+        if ( m_offset )
+            m_gr->TranslateTransform( 0.5, 0.5 );
+    }
+    ~wxGDIPlusOffsetHelper( )
+    {
+        if ( m_offset )
+            m_gr->TranslateTransform( -0.5, -0.5 );
+    }
+public :
+    Graphics* m_gr;
+    bool m_offset;
+} ;
 
-wxGDIPlusContext::wxGDIPlusContext( wxGraphicsRenderer* renderer, HDC hdc  )
+wxGDIPlusContext::wxGDIPlusContext( wxGraphicsRenderer* renderer, HDC hdc, wxDouble width, wxDouble height   )
     : wxGraphicsContext(renderer)
 {
-    Init();
-    m_context = new Graphics( hdc);
-    SetDefaults();
+    Init(new Graphics(hdc), width, height);
 }
 
-wxGDIPlusContext::wxGDIPlusContext( wxGraphicsRenderer* renderer, HWND hwnd  )
+wxGDIPlusContext::wxGDIPlusContext( wxGraphicsRenderer* renderer, const wxDC& dc )
     : wxGraphicsContext(renderer)
 {
-    Init();
-    m_context = new Graphics( hwnd);
-    SetDefaults();
+    wxMSWDCImpl *msw = wxDynamicCast( dc.GetImpl() , wxMSWDCImpl );
+    HDC hdc = (HDC) msw->GetHDC();
+    wxSize sz = dc.GetSize();
+
+    Init(new Graphics(hdc), sz.x, sz.y);
 }
 
-wxGDIPlusContext::wxGDIPlusContext( wxGraphicsRenderer* renderer, Graphics* gr  )
+wxGDIPlusContext::wxGDIPlusContext( wxGraphicsRenderer* renderer, HWND hwnd  )
     : wxGraphicsContext(renderer)
 {
-    Init();
-    m_context = gr;
-    SetDefaults();
+    RECT rect = wxGetWindowRect(hwnd);
+    Init(new Graphics(hwnd), rect.right - rect.left, rect.bottom - rect.top);
+    m_enableOffset = true;
 }
 
-wxGDIPlusContext::wxGDIPlusContext() : wxGraphicsContext(NULL)
+wxGDIPlusContext::wxGDIPlusContext( wxGraphicsRenderer* renderer, Graphics* gr  )
+    : wxGraphicsContext(renderer)
 {
-    Init();
+    Init(gr, 0, 0);
 }
 
-void wxGDIPlusContext::Init()
+wxGDIPlusContext::wxGDIPlusContext(wxGraphicsRenderer* renderer)
+    : wxGraphicsContext(renderer)
 {
+    // Derived class must call Init() later but just set m_context to NULL for
+    // safety to avoid crashing in our dtor if Init() ends up not being called.
     m_context = NULL;
-    m_state1 = 0;
-    m_state2= 0;
 }
 
-void wxGDIPlusContext::SetDefaults()
+void wxGDIPlusContext::Init(Graphics* graphics, int width, int height)
 {
+    m_context = graphics;
+    m_state1 = 0;
+    m_state2 = 0;
+    m_width = width;
+    m_height = height;
+    m_fontScaleRatio = 1.0;
+
+    m_context->SetTextRenderingHint(TextRenderingHintSystemDefault);
+    m_context->SetPixelOffsetMode(PixelOffsetModeHalf);
     m_context->SetSmoothingMode(SmoothingModeHighQuality);
+    m_context->SetInterpolationMode(InterpolationModeHighQuality);
     m_state1 = m_context->Save();
     m_state2 = m_context->Save();
 }
@@ -917,24 +1452,197 @@ void wxGDIPlusContext::ResetClip()
     m_context->ResetClip();
 }
 
+void wxGDIPlusContext::DrawRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
+{
+    if (m_composition == wxCOMPOSITION_DEST)
+        return;
+
+    wxGDIPlusOffsetHelper helper( m_context , ShouldOffset() );
+    Brush *brush = m_brush.IsNull() ? NULL : ((wxGDIPlusBrushData*)m_brush.GetRefData())->GetGDIPlusBrush();
+    Pen *pen = m_pen.IsNull() ? NULL : ((wxGDIPlusPenData*)m_pen.GetGraphicsData())->GetGDIPlusPen();
+
+    if ( brush )
+    {
+        // the offset is used to fill only the inside of the rectangle and not paint underneath
+        // its border which may influence a transparent Pen
+        REAL offset = 0;
+        if ( pen )
+             offset = pen->GetWidth();
+        m_context->FillRectangle( brush, (REAL)x + offset/2, (REAL)y + offset/2, (REAL)w - offset, (REAL)h - offset);
+    }
+
+    if ( pen )
+    {
+        m_context->DrawRectangle( pen, (REAL)x, (REAL)y, (REAL)w, (REAL)h );
+    }
+}
+
+void wxGDIPlusContext::StrokeLines( size_t n, const wxPoint2DDouble *points)
+{
+   if (m_composition == wxCOMPOSITION_DEST)
+        return;
+
+   if ( !m_pen.IsNull() )
+   {
+       wxGDIPlusOffsetHelper helper( m_context , ShouldOffset() );
+       Point *cpoints = new Point[n];
+       for (size_t i = 0; i < n; i++)
+       {
+           cpoints[i].X = (int)(points[i].m_x );
+           cpoints[i].Y = (int)(points[i].m_y );
+
+       } // for (size_t i = 0; i < n; i++)
+       m_context->DrawLines( ((wxGDIPlusPenData*)m_pen.GetGraphicsData())->GetGDIPlusPen() , cpoints , n ) ;
+       delete[] cpoints;
+   }
+}
+
+void wxGDIPlusContext::DrawLines( size_t n, const wxPoint2DDouble *points, wxPolygonFillMode WXUNUSED(fillStyle) )
+{
+   if (m_composition == wxCOMPOSITION_DEST)
+        return;
+
+    wxGDIPlusOffsetHelper helper( m_context , ShouldOffset() );
+    Point *cpoints = new Point[n];
+    for (size_t i = 0; i < n; i++)
+    {
+        cpoints[i].X = (int)(points[i].m_x );
+        cpoints[i].Y = (int)(points[i].m_y );
+
+    } // for (int i = 0; i < n; i++)
+    if ( !m_brush.IsNull() )
+        m_context->FillPolygon( ((wxGDIPlusBrushData*)m_brush.GetRefData())->GetGDIPlusBrush() , cpoints , n ) ;
+    if ( !m_pen.IsNull() )
+        m_context->DrawLines( ((wxGDIPlusPenData*)m_pen.GetGraphicsData())->GetGDIPlusPen() , cpoints , n ) ;
+    delete[] cpoints;
+}
+
 void wxGDIPlusContext::StrokePath( const wxGraphicsPath& path )
 {
+   if (m_composition == wxCOMPOSITION_DEST)
+        return;
+
     if ( !m_pen.IsNull() )
     {
+        wxGDIPlusOffsetHelper helper( m_context , ShouldOffset() );
         m_context->DrawPath( ((wxGDIPlusPenData*)m_pen.GetGraphicsData())->GetGDIPlusPen() , (GraphicsPath*) path.GetNativePath() );
     }
 }
 
-void wxGDIPlusContext::FillPath( const wxGraphicsPath& path , int fillStyle )
+void wxGDIPlusContext::FillPath( const wxGraphicsPath& path , wxPolygonFillMode fillStyle )
 {
+   if (m_composition == wxCOMPOSITION_DEST)
+        return;
+
     if ( !m_brush.IsNull() )
     {
+        wxGDIPlusOffsetHelper helper( m_context , ShouldOffset() );
         ((GraphicsPath*) path.GetNativePath())->SetFillMode( fillStyle == wxODDEVEN_RULE ? FillModeAlternate : FillModeWinding);
         m_context->FillPath( ((wxGDIPlusBrushData*)m_brush.GetRefData())->GetGDIPlusBrush() ,
             (GraphicsPath*) path.GetNativePath());
     }
 }
 
+bool wxGDIPlusContext::SetAntialiasMode(wxAntialiasMode antialias)
+{
+    if (m_antialias == antialias)
+        return true;
+
+    m_antialias = antialias;
+
+    SmoothingMode antialiasMode;
+    switch (antialias)
+    {
+        case wxANTIALIAS_DEFAULT:
+            antialiasMode = SmoothingModeHighQuality;
+            break;
+        case wxANTIALIAS_NONE:
+            antialiasMode = SmoothingModeNone;
+            break;
+        default:
+            return false;
+    }
+    m_context->SetSmoothingMode(antialiasMode);
+    return true;
+}
+
+bool wxGDIPlusContext::SetInterpolationQuality(wxInterpolationQuality interpolation)
+{
+    if (m_interpolation == interpolation)
+        return true;
+
+    InterpolationMode interpolationMode = InterpolationModeDefault;
+    switch (interpolation)
+    {
+        case wxINTERPOLATION_DEFAULT:
+            interpolationMode = InterpolationModeDefault;
+            break;
+
+        case wxINTERPOLATION_NONE:
+            interpolationMode = InterpolationModeNearestNeighbor;
+            break;
+
+        case wxINTERPOLATION_FAST:
+            interpolationMode = InterpolationModeLowQuality;
+            break;
+
+        case wxINTERPOLATION_GOOD:
+            interpolationMode = InterpolationModeHighQuality;
+            break;
+
+        case wxINTERPOLATION_BEST:
+            interpolationMode = InterpolationModeHighQualityBicubic;
+            break;
+
+        default:
+            return false;
+    }
+
+    if ( m_context->SetInterpolationMode(interpolationMode) != Gdiplus::Ok )
+        return false;
+
+    m_interpolation = interpolation;
+
+    return true;
+}
+
+bool wxGDIPlusContext::SetCompositionMode(wxCompositionMode op)
+{
+    if ( m_composition == op )
+        return true;
+
+    m_composition = op;
+
+    if (m_composition == wxCOMPOSITION_DEST)
+        return true;
+
+    CompositingMode cop;
+    switch (op)
+    {
+        case wxCOMPOSITION_SOURCE:
+            cop = CompositingModeSourceCopy;
+            break;
+        case wxCOMPOSITION_OVER:
+            cop = CompositingModeSourceOver;
+            break;
+        default:
+            return false;
+    }
+
+    m_context->SetCompositingMode(cop);
+    return true;
+}
+
+void wxGDIPlusContext::BeginLayer(wxDouble /* opacity */)
+{
+    // TODO
+}
+
+void wxGDIPlusContext::EndLayer()
+{
+    // TODO
+}
+
 void wxGDIPlusContext::Rotate( wxDouble angle )
 {
     m_context->RotateTransform( RadToDeg(angle) );
@@ -953,121 +1661,63 @@ void wxGDIPlusContext::Scale( wxDouble xScale , wxDouble yScale )
 void wxGDIPlusContext::PushState()
 {
     GraphicsState state = m_context->Save();
-    m_stateStack.push_back(state);
+    m_stateStack.push(state);
 }
 
 void wxGDIPlusContext::PopState()
 {
-    GraphicsState state = m_stateStack.back();
-    m_stateStack.pop_back();
+    wxCHECK_RET( !m_stateStack.empty(), wxT("No state to pop") );
+
+    GraphicsState state = m_stateStack.top();
+    m_stateStack.pop();
     m_context->Restore(state);
 }
 
-// the built-in conversions functions create non-premultiplied bitmaps, while GDIPlus needs them in the
-// premultiplied format, therefore in the failing cases we create a new bitmap using the non-premultiplied
-// bytes as parameter
-
-void wxGDIPlusContext::DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
+void wxGDIPlusContext::DrawBitmap( const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
 {
-    Bitmap* image = NULL;
-    Bitmap* helper = NULL;
-    if ( bmp.GetMask() )
-    {
-        Bitmap interim((HBITMAP)bmp.GetHBITMAP(),(HPALETTE)bmp.GetPalette()->GetHPALETTE()) ;
-
-        size_t width = interim.GetWidth();
-        size_t height = interim.GetHeight();
-        Rect bounds(0,0,width,height);
-
-        image = new Bitmap(width,height,PixelFormat32bppPARGB) ;
-
-        Bitmap interimMask((HBITMAP)bmp.GetMask()->GetMaskBitmap(),NULL);
-        wxASSERT(interimMask.GetPixelFormat() == PixelFormat1bppIndexed);
-
-        BitmapData dataMask ;
-        interimMask.LockBits(&bounds,ImageLockModeRead,
-            interimMask.GetPixelFormat(),&dataMask);
-
-
-        BitmapData imageData ;
-        image->LockBits(&bounds,ImageLockModeWrite, PixelFormat32bppPARGB, &imageData);
-
-        BYTE maskPattern = 0 ;
-        BYTE maskByte = 0;
-        size_t maskIndex ;
-
-        for ( size_t y = 0 ; y < height ; ++y)
-        {
-            maskIndex = 0 ;
-            for( size_t x = 0 ; x < width; ++x)
-            {
-                if ( x % 8 == 0)
-                {
-                    maskPattern = 0x80;
-                    maskByte = *((BYTE*)dataMask.Scan0 + dataMask.Stride*y + maskIndex);
-                    maskIndex++;
-                }
-                else
-                    maskPattern = maskPattern >> 1;
-
-                ARGB *dest = (ARGB*)((BYTE*)imageData.Scan0 + imageData.Stride*y + x*4);
-                if ( (maskByte & maskPattern) == 0 )
-                    *dest = 0x00000000;
-                else
-                {
-                    Color c ;
-                    interim.GetPixel(x,y,&c) ;
-                    *dest = (c.GetValue() | Color::AlphaMask);
-                }
-            }
-        }
-
-        image->UnlockBits(&imageData);
+   if (m_composition == wxCOMPOSITION_DEST)
+        return;
 
-        interimMask.UnlockBits(&dataMask);
-        interim.UnlockBits(&dataMask);
-    }
-    else
+    Bitmap* image = static_cast<wxGDIPlusBitmapData*>(bmp.GetRefData())->GetGDIPlusBitmap();
+    if ( image )
     {
-        image = Bitmap::FromHBITMAP((HBITMAP)bmp.GetHBITMAP(),(HPALETTE)bmp.GetPalette()->GetHPALETTE());
-        if ( GetPixelFormatSize(image->GetPixelFormat()) == 32 )
+        if( image->GetWidth() != (UINT) w || image->GetHeight() != (UINT) h )
         {
-            size_t width = image->GetWidth();
-            size_t height = image->GetHeight();
-            Rect bounds(0,0,width,height);
-            BitmapData data ;
-
-            helper = image ;
-            image = NULL ;
-            helper->LockBits(&bounds, ImageLockModeRead,
-                helper->GetPixelFormat(),&data);
-
-            image = new Bitmap(data.Width, data.Height, data.Stride,
-                PixelFormat32bppARGB , (BYTE*) data.Scan0);
-
-            helper->UnlockBits(&data);
+            Rect drawRect((REAL) x, (REAL)y, (REAL)w, (REAL)h);
+            m_context->SetPixelOffsetMode( PixelOffsetModeNone );
+            m_context->DrawImage(image, drawRect, 0 , 0 , image->GetWidth(), image->GetHeight(), UnitPixel ) ;
+            m_context->SetPixelOffsetMode( PixelOffsetModeHalf );
         }
+        else
+            m_context->DrawImage(image,(REAL) x,(REAL) y,(REAL) w,(REAL) h) ;
     }
-    if ( image )
-        m_context->DrawImage(image,(REAL) x,(REAL) y,(REAL) w,(REAL) h) ;
-    delete image ;
-    delete helper ;
+}
+
+void wxGDIPlusContext::DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
+{
+    wxGraphicsBitmap bitmap = GetRenderer()->CreateBitmap(bmp);
+    DrawBitmap(bitmap, x, y, w, h);
 }
 
 void wxGDIPlusContext::DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
 {
+   if (m_composition == wxCOMPOSITION_DEST)
+        return;
+
+    // the built-in conversion fails when there is alpha in the HICON (eg XP style icons), we can only
+    // find out by looking at the bitmap data whether there really was alpha in it
     HICON hIcon = (HICON)icon.GetHICON();
     ICONINFO iconInfo ;
     // IconInfo creates the bitmaps for color and mask, we must dispose of them after use
     if (!GetIconInfo(hIcon,&iconInfo))
         return;
 
-    BITMAP iconBmpData ;
-    GetObject(iconInfo.hbmColor,sizeof(BITMAP),&iconBmpData);
     Bitmap interim(iconInfo.hbmColor,NULL);
 
     Bitmap* image = NULL ;
 
+    // if it's not 32 bit, it doesn't have an alpha channel, note that since the conversion doesn't
+    // work correctly, asking IsAlphaPixelFormat at this point fails as well
     if( GetPixelFormatSize(interim.GetPixelFormat())!= 32 )
     {
         image = Bitmap::FromHICON(hIcon);
@@ -1081,8 +1731,28 @@ void wxGDIPlusContext::DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxD
 
         interim.LockBits(&bounds, ImageLockModeRead,
             interim.GetPixelFormat(),&data);
+
+        bool hasAlpha = false;
+        for ( size_t y = 0 ; y < height && !hasAlpha ; ++y)
+        {
+            for( size_t x = 0 ; x < width && !hasAlpha; ++x)
+            {
+                ARGB *dest = (ARGB*)((BYTE*)data.Scan0 + data.Stride*y + x*4);
+                if ( ( *dest & Color::AlphaMask ) != 0 )
+                    hasAlpha = true;
+            }
+        }
+
+        if ( hasAlpha )
+        {
         image = new Bitmap(data.Width, data.Height, data.Stride,
             PixelFormat32bppARGB , (BYTE*) data.Scan0);
+        }
+        else
+        {
+            image = Bitmap::FromHICON(hIcon);
+        }
+
         interim.UnlockBits(&data);
     }
 
@@ -1093,41 +1763,60 @@ void wxGDIPlusContext::DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxD
     DeleteObject(iconInfo.hbmMask);
 }
 
-void wxGDIPlusContext::DrawText( const wxString &str, wxDouble x, wxDouble y )
+void wxGDIPlusContext::DoDrawText(const wxString& str,
+                                        wxDouble x, wxDouble y )
 {
-    if ( m_font.IsNull() || str.IsEmpty())
+   if (m_composition == wxCOMPOSITION_DEST)
+        return;
+
+    wxCHECK_RET( !m_font.IsNull(),
+                 wxT("wxGDIPlusContext::DrawText - no valid font set") );
+
+    if ( str.IsEmpty())
         return ;
 
-    wxWCharBuffer s = str.wc_str( *wxConvUI );
-    m_context->DrawString( s , -1 , ((wxGDIPlusFontData*)m_font.GetRefData())->GetGDIPlusFont() ,
-            PointF( x , y ) , ((wxGDIPlusFontData*)m_font.GetRefData())->GetGDIPlusBrush() );
-    // TODO m_backgroundMode == wxSOLID
+    wxGDIPlusFontData * const
+        fontData = (wxGDIPlusFontData *)m_font.GetRefData();
+ 
+    m_context->DrawString
+               (
+                    str.wc_str(*wxConvUI),  // string to draw, always Unicode
+                    -1,                     // length: string is NUL-terminated
+                    fontData->GetGDIPlusFont(),
+                    PointF(x, y),
+                    GetDrawTextStringFormat(),
+                    fontData->GetGDIPlusBrush()
+               );
 }
 
 void wxGDIPlusContext::GetTextExtent( const wxString &str, wxDouble *width, wxDouble *height,
                                      wxDouble *descent, wxDouble *externalLeading ) const
 {
+    wxCHECK_RET( !m_font.IsNull(), wxT("wxGDIPlusContext::GetTextExtent - no valid font set") );
+
     wxWCharBuffer s = str.wc_str( *wxConvUI );
     FontFamily ffamily ;
     Font* f = ((wxGDIPlusFontData*)m_font.GetRefData())->GetGDIPlusFont();
 
     f->GetFamily(&ffamily) ;
 
-    REAL factorY = m_context->GetDpiY() / 72.0 ;
+    REAL factorY = m_fontScaleRatio;
 
-    REAL rDescent = ffamily.GetCellDescent(FontStyleRegular) *
-        f->GetSize() / ffamily.GetEmHeight(FontStyleRegular);
-    REAL rAscent = ffamily.GetCellAscent(FontStyleRegular) *
-        f->GetSize() / ffamily.GetEmHeight(FontStyleRegular);
-    REAL rHeight = ffamily.GetLineSpacing(FontStyleRegular) *
-        f->GetSize() / ffamily.GetEmHeight(FontStyleRegular);
+    // Notice that we must use the real font style or the results would be
+    // incorrect for italic/bold fonts.
+    const INT style = f->GetStyle();
+    const REAL size = f->GetSize();
+    const REAL emHeight = ffamily.GetEmHeight(style);
+    REAL rDescent = ffamily.GetCellDescent(style) * size / emHeight;
+    REAL rAscent = ffamily.GetCellAscent(style) * size / emHeight;
+    REAL rHeight = ffamily.GetLineSpacing(style) * size / emHeight;
 
     if ( height )
-        *height = rHeight * factorY + 0.5 ;
+        *height = rHeight * factorY;
     if ( descent )
-        *descent = rDescent * factorY + 0.5 ;
+        *descent = rDescent * factorY;
     if ( externalLeading )
-        *externalLeading = (rHeight - rAscent - rDescent) * factorY + 0.5 ;
+        *externalLeading = (rHeight - rAscent - rDescent) * factorY;
     // measuring empty strings is not guaranteed, so do it by hand
     if ( str.IsEmpty())
     {
@@ -1136,18 +1825,14 @@ void wxGDIPlusContext::GetTextExtent( const wxString &str, wxDouble *width, wxDo
     }
     else
     {
-        // MeasureString does return a rectangle that is way too large, so it is
-        // not usable here
         RectF layoutRect(0,0, 100000.0f, 100000.0f);
-        StringFormat strFormat;
-        CharacterRange strRange(0,wcslen(s));
-        strFormat.SetMeasurableCharacterRanges(1,&strRange);
-        Region region ;
-        m_context->MeasureCharacterRanges(s, -1 , f,layoutRect, &strFormat,1,&region) ;
-        RectF bbox ;
-        region.GetBounds(&bbox,m_context);
+
+        RectF bounds ;
+        m_context->MeasureString((const wchar_t *) s , wcslen(s) , f, layoutRect, GetDrawTextStringFormat(), &bounds ) ;
         if ( width )
-            *width = bbox.GetRight()-bbox.GetLeft()+0.5;
+            *width = bounds.Width;
+        if ( height )
+            *height = bounds.Height;
     }
 }
 
@@ -1156,6 +1841,8 @@ void wxGDIPlusContext::GetPartialTextExtents(const wxString& text, wxArrayDouble
     widths.Empty();
     widths.Add(0, text.length());
 
+    wxCHECK_RET( !m_font.IsNull(), wxT("wxGDIPlusContext::GetPartialTextExtents - no valid font set") );
+
     if (text.empty())
         return;
 
@@ -1165,24 +1852,53 @@ void wxGDIPlusContext::GetPartialTextExtents(const wxString& text, wxArrayDouble
     wxASSERT_MSG(text.length() == len , wxT("GetPartialTextExtents not yet implemented for multichar situations"));
 
     RectF layoutRect(0,0, 100000.0f, 100000.0f);
-    StringFormat strFormat;
+    StringFormat strFormat( GetDrawTextStringFormat() );
 
-    CharacterRange* ranges = new CharacterRange[len] ;
-    Region* regions = new Region[len];
-    for( size_t i = 0 ; i < len ; ++i)
+    size_t startPosition = 0;
+    size_t remainder = len;
+    const size_t maxSpan = 32;
+    CharacterRange* ranges = new CharacterRange[maxSpan] ;
+    Region* regions = new Region[maxSpan];
+
+    while( remainder > 0 )
     {
-        ranges[i].First = i ;
-        ranges[i].Length = 1 ;
+        size_t span = wxMin( maxSpan, remainder );
+
+        for( size_t i = 0 ; i < span ; ++i)
+        {
+            ranges[i].First = 0 ;
+            ranges[i].Length = startPosition+i+1 ;
+        }
+        strFormat.SetMeasurableCharacterRanges(span,ranges);
+        m_context->MeasureCharacterRanges(ws, -1 , f,layoutRect, &strFormat,span,regions) ;
+
+        RectF bbox ;
+        for ( size_t i = 0 ; i < span ; ++i)
+        {
+            regions[i].GetBounds(&bbox,m_context);
+            widths[startPosition+i] = bbox.Width;
+        }
+        remainder -= span;
+        startPosition += span;
     }
-    strFormat.SetMeasurableCharacterRanges(len,ranges);
-    m_context->MeasureCharacterRanges(ws, -1 , f,layoutRect, &strFormat,1,regions) ;
 
-    RectF bbox ;
-    for ( size_t i = 0 ; i < len ; ++i)
+    delete[] ranges;
+    delete[] regions;
+}
+
+bool wxGDIPlusContext::ShouldOffset() const
+{
+    if ( !m_enableOffset )
+        return false;
+    
+    int penwidth = 0 ;
+    if ( !m_pen.IsNull() )
     {
-        regions[i].GetBounds(&bbox,m_context);
-        widths[i] = bbox.GetRight()-bbox.GetLeft();
+        penwidth = (int)((wxGDIPlusPenData*)m_pen.GetRefData())->GetWidth();
+        if ( penwidth == 0 )
+            penwidth = 1;
     }
+    return ( penwidth % 2 ) == 1;
 }
 
 void* wxGDIPlusContext::GetNativeContext()
@@ -1209,77 +1925,38 @@ wxGraphicsMatrix wxGDIPlusContext::GetTransform() const
     m_context->GetTransform((Matrix*) matrix.GetNativeMatrix());
     return matrix;
 }
-//-----------------------------------------------------------------------------
-// wxGDIPlusRenderer declaration
-//-----------------------------------------------------------------------------
 
-class WXDLLIMPEXP_CORE wxGDIPlusRenderer : public wxGraphicsRenderer
+void wxGDIPlusContext::GetSize( wxDouble* width, wxDouble *height )
 {
-public :
-    wxGDIPlusRenderer()
-    {
-        m_loaded = false;
-        m_gditoken = 0;
-    }
-
-    virtual ~wxGDIPlusRenderer()
-    {
-        if (m_loaded)
-        {
-            Unload();
-        }
-    }
-
-    // Context
-
-    virtual wxGraphicsContext * CreateContext( const wxWindowDC& dc);
-
-    virtual wxGraphicsContext * CreateContext( const wxMemoryDC& dc);
-
-    virtual wxGraphicsContext * CreateContextFromNativeContext( void * context );
-
-    virtual wxGraphicsContext * CreateContextFromNativeWindow( void * window );
-
-    virtual wxGraphicsContext * CreateContext( wxWindow* window );
-
-    virtual wxGraphicsContext * CreateMeasuringContext();
-
-    // Path
-
-    virtual wxGraphicsPath CreatePath();
-
-    // Matrix
-
-    virtual wxGraphicsMatrix CreateMatrix( wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0,
-        wxDouble tx=0.0, wxDouble ty=0.0);
-
-
-    virtual wxGraphicsPen CreatePen(const wxPen& pen) ;
+    *width = m_width;
+    *height = m_height;
+}
 
-    virtual wxGraphicsBrush CreateBrush(const wxBrush& brush ) ;
+//-----------------------------------------------------------------------------
+// wxGDIPlusPrintingContext implementation
+//-----------------------------------------------------------------------------
 
-    // sets the brush to a linear gradient, starting at (x1,y1) with color c1 to (x2,y2) with color c2
-    virtual wxGraphicsBrush CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
-        const wxColour&c1, const wxColour&c2) ;
+wxGDIPlusPrintingContext::wxGDIPlusPrintingContext( wxGraphicsRenderer* renderer,
+                                                    const wxDC& dc )
+    : wxGDIPlusContext(renderer, dc)
+{
+    Graphics* context = GetGraphics();
 
-    // sets the brush to a radial gradient originating at (xo,yc) with color oColor and ends on a circle around (xc,yc)
-    // with radius r and color cColor
-    virtual wxGraphicsBrush CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
-        const wxColour &oColor, const wxColour &cColor) ;
+    //m_context->SetPageUnit(UnitDocument);
 
-    // sets the font
-    virtual wxGraphicsFont CreateFont( const wxFont &font , const wxColour &col = *wxBLACK ) ;
-protected :
-    void EnsureIsLoaded();
-    void Load();
-    void Unload();
+    // Setup page scale, based on DPI ratio.
+    // Antecedent should be 100dpi when the default page unit
+    // (UnitDisplay) is used. Page unit UnitDocument would require 300dpi
+    // instead. Note that calling SetPageScale() does not have effect on
+    // non-printing DCs (that is, any other than wxPrinterDC or
+    // wxEnhMetaFileDC).
+    REAL dpiRatio = 100.0 / context->GetDpiY();
+    context->SetPageScale(dpiRatio);
 
-private :
-    bool m_loaded;
-    ULONG_PTR m_gditoken;
-
-    DECLARE_DYNAMIC_CLASS_NO_COPY(wxGDIPlusRenderer)
-} ;
+    // We use this modifier when measuring fonts. It is needed because the
+    // page scale is modified above.
+    m_fontScaleRatio = context->GetDpiY() / 72.0;
+}
 
 //-----------------------------------------------------------------------------
 // wxGDIPlusRenderer implementation
@@ -1294,64 +1971,119 @@ wxGraphicsRenderer* wxGraphicsRenderer::GetDefaultRenderer()
     return &gs_GDIPlusRenderer;
 }
 
-void wxGDIPlusRenderer::EnsureIsLoaded()
+bool wxGDIPlusRenderer::EnsureIsLoaded()
 {
-    if (!m_loaded)
+    // load gdiplus.dll if not yet loaded, but don't bother doing it again
+    // if we already tried and failed (we don't want to spend lot of time
+    // returning NULL from wxGraphicsContext::Create(), which may be called
+    // relatively frequently):
+    if ( m_loaded == -1 )
     {
         Load();
     }
+
+    return m_loaded == 1;
 }
 
+// call EnsureIsLoaded() and return returnOnFail value if it fails
+#define ENSURE_LOADED_OR_RETURN(returnOnFail)  \
+    if ( !EnsureIsLoaded() )                   \
+        return (returnOnFail)
+
+
 void wxGDIPlusRenderer::Load()
 {
     GdiplusStartupInput input;
     GdiplusStartupOutput output;
-    GdiplusStartup(&m_gditoken,&input,&output);
-    m_loaded = true;
+    if ( GdiplusStartup(&m_gditoken,&input,&output) == Gdiplus::Ok )
+    {
+        wxLogTrace("gdiplus", "successfully initialized GDI+");
+        m_loaded = 1;
+    }
+    else
+    {
+        wxLogTrace("gdiplus", "failed to initialize GDI+, missing gdiplus.dll?");
+        m_loaded = 0;
+    }
 }
 
 void wxGDIPlusRenderer::Unload()
 {
     if ( m_gditoken )
+    {
         GdiplusShutdown(m_gditoken);
+        m_gditoken = 0;
+    }
+    m_loaded = -1; // next Load() will try again
 }
 
 wxGraphicsContext * wxGDIPlusRenderer::CreateContext( const wxWindowDC& dc)
 {
-    EnsureIsLoaded();
-    return new wxGDIPlusContext(this,(HDC) dc.GetHDC());
+    ENSURE_LOADED_OR_RETURN(NULL);
+    wxGDIPlusContext* context = new wxGDIPlusContext(this, dc);
+    context->EnableOffset(true);
+    return context;
+}
+
+#if wxUSE_PRINTING_ARCHITECTURE
+wxGraphicsContext * wxGDIPlusRenderer::CreateContext( const wxPrinterDC& dc)
+{
+    ENSURE_LOADED_OR_RETURN(NULL);
+    wxGDIPlusContext* context = new wxGDIPlusPrintingContext(this, dc);
+    return context;
 }
+#endif
+
+#if wxUSE_ENH_METAFILE
+wxGraphicsContext * wxGDIPlusRenderer::CreateContext( const wxEnhMetaFileDC& dc)
+{
+    ENSURE_LOADED_OR_RETURN(NULL);
+    wxGDIPlusContext* context = new wxGDIPlusPrintingContext(this, dc);
+    return context;
+}
+#endif
 
 wxGraphicsContext * wxGDIPlusRenderer::CreateContext( const wxMemoryDC& dc)
 {
-    EnsureIsLoaded();
-    return new wxGDIPlusContext(this,(HDC) dc.GetHDC());
+    ENSURE_LOADED_OR_RETURN(NULL);
+    wxGDIPlusContext* context = new wxGDIPlusContext(this, dc);
+    context->EnableOffset(true);
+    return context;
 }
 
+#if wxUSE_IMAGE
+wxGraphicsContext * wxGDIPlusRenderer::CreateContextFromImage(wxImage& image)
+{
+    ENSURE_LOADED_OR_RETURN(NULL);
+    wxGDIPlusContext* context = new wxGDIPlusImageContext(this, image);
+    context->EnableOffset(true);
+    return context;
+}
+
+#endif // wxUSE_IMAGE
+
 wxGraphicsContext * wxGDIPlusRenderer::CreateMeasuringContext()
 {
-    EnsureIsLoaded();
-    return NULL;
-    // TODO use GetDC(NULL) but then we have to release it from the context
-    //return new wxGDIPlusContext(this,(HDC) dc.GetHDC());
+    ENSURE_LOADED_OR_RETURN(NULL);
+    return new wxGDIPlusMeasuringContext(this);
 }
 
 wxGraphicsContext * wxGDIPlusRenderer::CreateContextFromNativeContext( void * context )
 {
-    EnsureIsLoaded();
+    ENSURE_LOADED_OR_RETURN(NULL);
     return new wxGDIPlusContext(this,(Graphics*) context);
 }
 
 
 wxGraphicsContext * wxGDIPlusRenderer::CreateContextFromNativeWindow( void * window )
 {
-    EnsureIsLoaded();
+    ENSURE_LOADED_OR_RETURN(NULL);
     return new wxGDIPlusContext(this,(HWND) window);
 }
 
 wxGraphicsContext * wxGDIPlusRenderer::CreateContext( wxWindow* window )
 {
-    EnsureIsLoaded();
+    ENSURE_LOADED_OR_RETURN(NULL);
     return new wxGDIPlusContext(this, (HWND) window->GetHWND() );
 }
 
@@ -1359,7 +2091,7 @@ wxGraphicsContext * wxGDIPlusRenderer::CreateContext( wxWindow* window )
 
 wxGraphicsPath wxGDIPlusRenderer::CreatePath()
 {
-    EnsureIsLoaded();
+    ENSURE_LOADED_OR_RETURN(wxNullGraphicsPath);
     wxGraphicsPath m;
     m.SetRefData( new wxGDIPlusPathData(this));
     return m;
@@ -1372,7 +2104,7 @@ wxGraphicsMatrix wxGDIPlusRenderer::CreateMatrix( wxDouble a, wxDouble b, wxDoub
                                                            wxDouble tx, wxDouble ty)
 
 {
-    EnsureIsLoaded();
+    ENSURE_LOADED_OR_RETURN(wxNullGraphicsMatrix);
     wxGraphicsMatrix m;
     wxGDIPlusMatrixData* data = new wxGDIPlusMatrixData( this );
     data->Set( a,b,c,d,tx,ty ) ;
@@ -1382,8 +2114,8 @@ wxGraphicsMatrix wxGDIPlusRenderer::CreateMatrix( wxDouble a, wxDouble b, wxDoub
 
 wxGraphicsPen wxGDIPlusRenderer::CreatePen(const wxPen& pen)
 {
-    EnsureIsLoaded();
-    if ( !pen.Ok() || pen.GetStyle() == wxTRANSPARENT )
+    ENSURE_LOADED_OR_RETURN(wxNullGraphicsPen);
+    if ( !pen.IsOk() || pen.GetStyle() == wxTRANSPARENT )
         return wxNullGraphicsPen;
     else
     {
@@ -1395,8 +2127,8 @@ wxGraphicsPen wxGDIPlusRenderer::CreatePen(const wxPen& pen)
 
 wxGraphicsBrush wxGDIPlusRenderer::CreateBrush(const wxBrush& brush )
 {
-    EnsureIsLoaded();
-    if ( !brush.Ok() || brush.GetStyle() == wxTRANSPARENT )
+    ENSURE_LOADED_OR_RETURN(wxNullGraphicsBrush);
+    if ( !brush.IsOk() || brush.GetStyle() == wxTRANSPARENT )
         return wxNullGraphicsBrush;
     else
     {
@@ -1406,43 +2138,213 @@ wxGraphicsBrush wxGDIPlusRenderer::CreateBrush(const wxBrush& brush )
     }
 }
 
-// sets the brush to a linear gradient, starting at (x1,y1) with color c1 to (x2,y2) with color c2
-wxGraphicsBrush wxGDIPlusRenderer::CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
-                                                                      const wxColour&c1, const wxColour&c2)
+wxGraphicsBrush
+wxGDIPlusRenderer::CreateLinearGradientBrush(wxDouble x1, wxDouble y1,
+                                             wxDouble x2, wxDouble y2,
+                                             const wxGraphicsGradientStops& stops)
 {
-    EnsureIsLoaded();
+    ENSURE_LOADED_OR_RETURN(wxNullGraphicsBrush);
     wxGraphicsBrush p;
     wxGDIPlusBrushData* d = new wxGDIPlusBrushData( this );
-    d->CreateLinearGradientBrush(x1, y1, x2, y2, c1, c2);
+    d->CreateLinearGradientBrush(x1, y1, x2, y2, stops);
     p.SetRefData(d);
     return p;
  }
 
-// sets the brush to a radial gradient originating at (xo,yc) with color oColor and ends on a circle around (xc,yc)
-// with radius r and color cColor
-wxGraphicsBrush wxGDIPlusRenderer::CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
-                                                                      const wxColour &oColor, const wxColour &cColor)
+wxGraphicsBrush
+wxGDIPlusRenderer::CreateRadialGradientBrush(wxDouble xo, wxDouble yo,
+                                             wxDouble xc, wxDouble yc,
+                                             wxDouble radius,
+                                             const wxGraphicsGradientStops& stops)
 {
-    EnsureIsLoaded();
+    ENSURE_LOADED_OR_RETURN(wxNullGraphicsBrush);
     wxGraphicsBrush p;
     wxGDIPlusBrushData* d = new wxGDIPlusBrushData( this );
-    d->CreateRadialGradientBrush(xo,yo,xc,yc,radius,oColor,cColor);
+    d->CreateRadialGradientBrush(xo,yo,xc,yc,radius,stops);
     p.SetRefData(d);
     return p;
 }
 
-// sets the font
-wxGraphicsFont wxGDIPlusRenderer::CreateFont( const wxFont &font , const wxColour &col )
+wxGraphicsFont
+wxGDIPlusRenderer::CreateFont( const wxFont &font,
+                               const wxColour &col )
 {
-    EnsureIsLoaded();
-    if ( font.Ok() )
+    ENSURE_LOADED_OR_RETURN(wxNullGraphicsFont);
+    if ( font.IsOk() )
     {
         wxGraphicsFont p;
-        p.SetRefData(new wxGDIPlusFontData( this , font, col ));
+        p.SetRefData(new wxGDIPlusFontData( this, font, col ));
         return p;
     }
     else
         return wxNullGraphicsFont;
 }
 
+wxGraphicsFont
+wxGDIPlusRenderer::CreateFont(double size,
+                              const wxString& facename,
+                              int flags,
+                              const wxColour& col)
+{
+    ENSURE_LOADED_OR_RETURN(wxNullGraphicsFont);
+
+    // Convert wxFont flags to GDI+ style:
+    int style = FontStyleRegular;
+    if ( flags & wxFONTFLAG_ITALIC )
+        style |= FontStyleItalic;
+    if ( flags & wxFONTFLAG_UNDERLINED )
+        style |= FontStyleUnderline;
+    if ( flags & wxFONTFLAG_BOLD )
+        style |= FontStyleBold;
+    if ( flags & wxFONTFLAG_STRIKETHROUGH )
+        style |= FontStyleStrikeout;
+
+
+    wxGraphicsFont f;
+    f.SetRefData(new wxGDIPlusFontData(this, facename, size, style, col));
+    return f;
+}
+
+wxGraphicsBitmap wxGDIPlusRenderer::CreateBitmap( const wxBitmap &bitmap )
+{
+    ENSURE_LOADED_OR_RETURN(wxNullGraphicsBitmap);
+    if ( bitmap.IsOk() )
+    {
+        wxGraphicsBitmap p;
+        p.SetRefData(new wxGDIPlusBitmapData( this , bitmap ));
+        return p;
+    }
+    else
+        return wxNullGraphicsBitmap;
+}
+
+#if wxUSE_IMAGE
+
+wxGraphicsBitmap wxGDIPlusRenderer::CreateBitmapFromImage(const wxImage& image)
+{
+    ENSURE_LOADED_OR_RETURN(wxNullGraphicsBitmap);
+    if ( image.IsOk() )
+    {
+        // Notice that we rely on conversion from wxImage to wxBitmap here but
+        // we could probably do it more efficiently by converting from wxImage
+        // to GDI+ Bitmap directly, i.e. copying wxImage pixels to the buffer
+        // returned by Bitmap::LockBits(). However this would require writing
+        // code specific for this task while like this we can reuse existing
+        // code (see also wxGDIPlusBitmapData::ConvertToImage()).
+        wxGraphicsBitmap gb;
+        gb.SetRefData(new wxGDIPlusBitmapData(this, image));
+        return gb;
+    }
+    else
+        return wxNullGraphicsBitmap;
+}
+
+
+wxImage wxGDIPlusRenderer::CreateImageFromBitmap(const wxGraphicsBitmap& bmp)
+{
+    ENSURE_LOADED_OR_RETURN(wxNullImage);
+    const wxGDIPlusBitmapData* const
+        data = static_cast<wxGDIPlusBitmapData*>(bmp.GetGraphicsData());
+
+    return data ? data->ConvertToImage() : wxNullImage;
+}
+
+#endif // wxUSE_IMAGE
+
+
+wxGraphicsBitmap wxGDIPlusRenderer::CreateBitmapFromNativeBitmap( void *bitmap )
+{
+    ENSURE_LOADED_OR_RETURN(wxNullGraphicsBitmap);
+    if ( bitmap != NULL )
+    {
+        wxGraphicsBitmap p;
+        p.SetRefData(new wxGDIPlusBitmapData( this , (Bitmap*) bitmap ));
+        return p;
+    }
+    else
+        return wxNullGraphicsBitmap;
+}
+
+wxGraphicsBitmap wxGDIPlusRenderer::CreateSubBitmap( const wxGraphicsBitmap &bitmap, wxDouble x, wxDouble y, wxDouble w, wxDouble h  )
+{
+    ENSURE_LOADED_OR_RETURN(wxNullGraphicsBitmap);
+    Bitmap* image = static_cast<wxGDIPlusBitmapData*>(bitmap.GetRefData())->GetGDIPlusBitmap();
+    if ( image )
+    {
+        wxGraphicsBitmap p;
+        p.SetRefData(new wxGDIPlusBitmapData( this , image->Clone( (REAL) x , (REAL) y , (REAL) w , (REAL) h , PixelFormat32bppPARGB) ));
+        return p;
+    }
+    else
+        return wxNullGraphicsBitmap;
+}
+
+// Shutdown GDI+ at app exit, before possible dll unload
+class wxGDIPlusRendererModule : public wxModule
+{
+public:
+    wxGDIPlusRendererModule()
+    {
+        // We must be uninitialized before GDI+ DLL itself is unloaded.
+        AddDependency("wxGdiPlusModule");
+    }
+
+    virtual bool OnInit() { return true; }
+    virtual void OnExit()
+    {
+        wxDELETE(gs_drawTextStringFormat);
+
+        gs_GDIPlusRenderer.Unload();
+    }
+
+private:
+    DECLARE_DYNAMIC_CLASS(wxGDIPlusRendererModule)
+};
+
+IMPLEMENT_DYNAMIC_CLASS(wxGDIPlusRendererModule, wxModule)
+
+// ----------------------------------------------------------------------------
+// wxMSW-specific parts of wxGCDC
+// ----------------------------------------------------------------------------
+
+WXHDC wxGCDC::AcquireHDC()
+{
+    wxGraphicsContext * const gc = GetGraphicsContext();
+    if ( !gc )
+        return NULL;
+
+#if wxUSE_CAIRO
+    // we can't get the HDC if it is not a GDI+ context
+    wxGraphicsRenderer* r1 = gc->GetRenderer();
+    wxGraphicsRenderer* r2 = wxGraphicsRenderer::GetCairoRenderer();
+    if (r1 == r2)
+        return NULL;
+#endif
+
+    Graphics * const g = static_cast<Graphics *>(gc->GetNativeContext());
+    return g ? g->GetHDC() : NULL;
+}
+
+void wxGCDC::ReleaseHDC(WXHDC hdc)
+{
+    if ( !hdc )
+        return;
+
+    wxGraphicsContext * const gc = GetGraphicsContext();
+    wxCHECK_RET( gc, "can't release HDC because there is no wxGraphicsContext" );
+
+#if wxUSE_CAIRO
+    // we can't get the HDC if it is not a GDI+ context
+    wxGraphicsRenderer* r1 = gc->GetRenderer();
+    wxGraphicsRenderer* r2 = wxGraphicsRenderer::GetCairoRenderer();
+    if (r1 == r2)
+        return;
+#endif
+
+    Graphics * const g = static_cast<Graphics *>(gc->GetNativeContext());
+    wxCHECK_RET( g, "can't release HDC because there is no Graphics" );
+
+    g->ReleaseHDC((HDC)hdc);
+}
+
 #endif  // wxUSE_GRAPHICS_CONTEXT