X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/7fa3cf6a646d6a461557754301b35792ad19669a..af36ec0aa1b2110723637a27c42f4fc82afaff96:/src/msw/graphics.cpp

diff --git a/src/msw/graphics.cpp b/src/msw/graphics.cpp
index 52c809b805..e5161c5d5b 100644
--- a/src/msw/graphics.cpp
+++ b/src/msw/graphics.cpp
@@ -37,6 +37,8 @@
     #include "wx/dcprint.h"
 #endif
 
+#include "wx/stack.h"
+
 #include "wx/private/graphics.h"
 #include "wx/msw/wrapgdip.h"
 #include "wx/msw/dc.h"
@@ -51,10 +53,6 @@
 #include <commdlg.h>
 #endif
 
-#include "wx/stack.h"
-
-WX_DECLARE_STACK(GraphicsState, GraphicsStates);
-
 namespace
 {
 
@@ -98,6 +96,8 @@ inline Color wxColourToColor(const wxColour& col)
 // wxGraphicsPath implementation
 //-----------------------------------------------------------------------------
 
+class wxGDIPlusContext;
+
 class wxGDIPlusPathData : public wxGraphicsPathData
 {
 public :
@@ -281,6 +281,10 @@ public:
 
     virtual Bitmap* GetGDIPlusBitmap() { return m_bitmap; }
 
+#if wxUSE_IMAGE
+    wxImage ConvertToImage() const;
+#endif // wxUSE_IMAGE
+
 private :
     Bitmap* m_bitmap;
     Bitmap* m_helper;
@@ -289,12 +293,28 @@ private :
 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;
 };
@@ -302,10 +322,11 @@ private :
 class wxGDIPlusContext : public wxGraphicsContext
 {
 public:
-    wxGDIPlusContext( wxGraphicsRenderer* renderer, HDC hdc , wxDouble width, wxDouble height );
+    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();
 
@@ -321,6 +342,8 @@ public:
     virtual void StrokePath( const wxGraphicsPath& p );
     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);
 
@@ -329,6 +352,8 @@ public:
 
     virtual bool SetAntialiasMode(wxAntialiasMode antialias);
 
+    virtual bool SetInterpolationQuality(wxInterpolationQuality interpolation);
+    
     virtual bool SetCompositionMode(wxCompositionMode op);
 
     virtual void BeginLayer(wxDouble opacity);
@@ -360,35 +385,68 @@ public:
     virtual bool ShouldOffset() const;
     virtual void GetSize( wxDouble* width, wxDouble *height );
 
-private:
-    void    Init();
-    void    SetDefaults();
+    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:
     virtual void DoDrawText(const wxString& str, wxDouble x, wxDouble y)
         { DoDrawFilledText(str, x, y, wxNullGraphicsBrush); }
     virtual void DoDrawFilledText(const wxString& str, wxDouble x, wxDouble y,
                                   const wxGraphicsBrush& backgroundBrush);
 
     Graphics* m_context;
-    GraphicsStates m_stateStack;
+    wxStack<GraphicsState> m_stateStack;
     GraphicsState m_state1;
     GraphicsState m_state2;
 
-    wxDouble m_width;
-    wxDouble m_height;
+    wxDECLARE_NO_COPY_CLASS(wxGDIPlusContext);
+};
+
+#if wxUSE_IMAGE
 
-    DECLARE_DYNAMIC_CLASS_NO_COPY(wxGDIPlusContext)
+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 )
     {
     }
-    wxGDIPlusMeasuringContext()
-    {
-    }
 
     virtual ~wxGDIPlusMeasuringContext()
     {
@@ -397,7 +455,120 @@ public:
 
 private:
     HDC m_hdc ;
-    DECLARE_DYNAMIC_CLASS_NO_COPY(wxGDIPlusMeasuringContext)
+} ;
+
+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)
 } ;
 
 //-----------------------------------------------------------------------------
@@ -476,25 +647,25 @@ 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;
@@ -511,12 +682,18 @@ 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 );
             }
@@ -524,30 +701,32 @@ 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
                              (
@@ -583,28 +762,29 @@ wxGDIPlusBrushData::wxGDIPlusBrushData( wxGraphicsRenderer* renderer , const wxB
     }
     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
                       (
@@ -616,10 +796,16 @@ wxGDIPlusBrushData::wxGDIPlusBrushData( wxGraphicsRenderer* renderer , const wxB
     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);
         }
     }
@@ -706,14 +892,23 @@ wxGDIPlusBrushData::CreateRadialGradientBrush(wxDouble xo, wxDouble yo,
 // 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;
@@ -721,8 +916,18 @@ 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(wxColourToColor(col));
+
+    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()
@@ -755,7 +960,13 @@ wxGDIPlusBitmapData::wxGDIPlusBitmapData( wxGraphicsRenderer* renderer,
     Bitmap* image = NULL;
     if ( bmp.GetMask() )
     {
-        Bitmap interim((HBITMAP)bmp.GetHBITMAP(),(HPALETTE)bmp.GetPalette()->GetHPALETTE()) ;
+        Bitmap interim((HBITMAP)bmp.GetHBITMAP(),
+#if wxUSE_PALETTE
+            (HPALETTE)bmp.GetPalette()->GetHPALETTE()
+#else
+            NULL
+#endif
+        );
 
         size_t width = interim.GetWidth();
         size_t height = interim.GetHeight();
@@ -811,7 +1022,13 @@ wxGDIPlusBitmapData::wxGDIPlusBitmapData( wxGraphicsRenderer* renderer,
     }
     else
     {
-        image = Bitmap::FromHBITMAP((HBITMAP)bmp.GetHBITMAP(),(HPALETTE)bmp.GetPalette()->GetHPALETTE());
+        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();
@@ -834,6 +1051,28 @@ wxGDIPlusBitmapData::wxGDIPlusBitmapData( wxGraphicsRenderer* renderer,
         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;
@@ -1081,9 +1320,6 @@ void * wxGDIPlusMatrixData::GetNativeMatrix() const
 // wxGDIPlusContext implementation
 //-----------------------------------------------------------------------------
 
-IMPLEMENT_DYNAMIC_CLASS(wxGDIPlusContext,wxGraphicsContext)
-IMPLEMENT_DYNAMIC_CLASS(wxGDIPlusMeasuringContext,wxGDIPlusContext)
-
 class wxGDIPlusOffsetHelper
 {
 public :
@@ -1107,61 +1343,55 @@ public :
 wxGDIPlusContext::wxGDIPlusContext( wxGraphicsRenderer* renderer, HDC hdc, wxDouble width, wxDouble height   )
     : wxGraphicsContext(renderer)
 {
-    Init();
-    m_context = new Graphics( hdc);
-    m_width = width;
-    m_height = height;
-    SetDefaults();
+    Init(new Graphics(hdc), width, height);
+}
+
+wxGDIPlusContext::wxGDIPlusContext( wxGraphicsRenderer* renderer, const wxDC& dc )
+    : wxGraphicsContext(renderer)
+{
+    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, HWND hwnd  )
     : wxGraphicsContext(renderer)
 {
-    Init();
-    m_context = new Graphics( hwnd);
     RECT rect = wxGetWindowRect(hwnd);
-    m_width = rect.right - rect.left;
-    m_height = rect.bottom - rect.top;
-    SetDefaults();
+    Init(new Graphics(hwnd), rect.right - rect.left, rect.bottom - rect.top);
+    m_enableOffset = true;
 }
 
 wxGDIPlusContext::wxGDIPlusContext( wxGraphicsRenderer* renderer, Graphics* gr  )
     : wxGraphicsContext(renderer)
 {
-    Init();
-    m_context = gr;
-    SetDefaults();
+    Init(gr, 0, 0);
 }
 
-wxGDIPlusContext::wxGDIPlusContext() : wxGraphicsContext(NULL)
+wxGDIPlusContext::wxGDIPlusContext(wxGraphicsRenderer* renderer)
+    : wxGraphicsContext(renderer)
 {
-    Init();
+    // 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;
 }
 
-void wxGDIPlusContext::Init()
+void wxGDIPlusContext::Init(Graphics* graphics, int width, int height)
 {
-    m_context = NULL;
+    m_context = graphics;
     m_state1 = 0;
-    m_state2= 0;
-    m_height = 0;
-    m_width = 0;
-}
+    m_state2 = 0;
+    m_width = width;
+    m_height = height;
+    m_fontScaleRatio = 1.0;
 
-void wxGDIPlusContext::SetDefaults()
-{
     m_context->SetTextRenderingHint(TextRenderingHintSystemDefault);
     m_context->SetPixelOffsetMode(PixelOffsetModeHalf);
     m_context->SetSmoothingMode(SmoothingModeHighQuality);
     m_state1 = m_context->Save();
     m_state2 = m_context->Save();
-
-    // 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 / m_context->GetDpiY();
-    m_context->SetPageScale(dpiRatio);
 }
 
 wxGDIPlusContext::~wxGDIPlusContext()
@@ -1191,6 +1421,31 @@ 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)
@@ -1280,6 +1535,12 @@ bool wxGDIPlusContext::SetAntialiasMode(wxAntialiasMode antialias)
     return true;
 }
 
+bool wxGDIPlusContext::SetInterpolationQuality(wxInterpolationQuality WXUNUSED(interpolation))
+{
+    // placeholder
+    return false;
+}
+
 bool wxGDIPlusContext::SetCompositionMode(wxCompositionMode op)
 {
     if ( m_composition == op )
@@ -1340,6 +1601,8 @@ void wxGDIPlusContext::PushState()
 
 void wxGDIPlusContext::PopState()
 {
+    wxCHECK_RET( !m_stateStack.empty(), wxT("No state to pop") );
+
     GraphicsState state = m_stateStack.top();
     m_stateStack.pop();
     m_context->Restore(state);
@@ -1357,7 +1620,7 @@ void wxGDIPlusContext::DrawBitmap( const wxGraphicsBitmap &bmp, wxDouble x, wxDo
         {
             Rect drawRect((REAL) x, (REAL)y, (REAL)w, (REAL)h);
             m_context->SetPixelOffsetMode( PixelOffsetModeNone );
-            m_context->DrawImage(image, drawRect, 0 , 0 , image->GetWidth()-1, image->GetHeight()-1, UnitPixel ) ;
+            m_context->DrawImage(image, drawRect, 0 , 0 , image->GetWidth(), image->GetHeight(), UnitPixel ) ;
             m_context->SetPixelOffsetMode( PixelOffsetModeHalf );
         }
         else
@@ -1476,7 +1739,7 @@ void wxGDIPlusContext::GetTextExtent( const wxString &str, wxDouble *width, wxDo
 
     f->GetFamily(&ffamily) ;
 
-    REAL factorY = m_context->GetDpiY() / 72.0 ;
+    REAL factorY = m_fontScaleRatio;
 
     REAL rDescent = ffamily.GetCellDescent(FontStyleRegular) *
         f->GetSize() / ffamily.GetEmHeight(FontStyleRegular);
@@ -1565,6 +1828,9 @@ void wxGDIPlusContext::GetPartialTextExtents(const wxString& text, wxArrayDouble
 
 bool wxGDIPlusContext::ShouldOffset() const
 {
+    if ( !m_enableOffset )
+        return false;
+    
     int penwidth = 0 ;
     if ( !m_pen.IsNull() )
     {
@@ -1605,97 +1871,32 @@ void wxGDIPlusContext::GetSize( wxDouble* width, wxDouble *height )
     *width = m_width;
     *height = m_height;
 }
+
 //-----------------------------------------------------------------------------
-// wxGDIPlusRenderer declaration
+// wxGDIPlusPrintingContext implementation
 //-----------------------------------------------------------------------------
 
-class wxGDIPlusRenderer : public wxGraphicsRenderer
+wxGDIPlusPrintingContext::wxGDIPlusPrintingContext( wxGraphicsRenderer* renderer,
+                                                    const wxDC& dc )
+    : wxGDIPlusContext(renderer, dc)
 {
-public :
-    wxGDIPlusRenderer()
-    {
-        m_loaded = -1;
-        m_gditoken = 0;
-    }
-
-    virtual ~wxGDIPlusRenderer()
-    {
-        if ( m_loaded == 1 )
-        {
-            Unload();
-        }
-    }
+    Graphics* context = GetGraphics();
 
-    // Context
+    //m_context->SetPageUnit(UnitDocument);
 
-    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 );
-
-    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);
-    // sets the font
-    virtual wxGraphicsFont CreateFont( const wxFont &font , const wxColour &col = *wxBLACK ) ;
-
-    // create a native bitmap representation
-    virtual wxGraphicsBitmap CreateBitmap( const wxBitmap &bitmap );
-
-    // 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;
+    // 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);
 
-    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
@@ -1751,7 +1952,7 @@ void wxGDIPlusRenderer::Unload()
     if ( m_gditoken )
     {
         GdiplusShutdown(m_gditoken);
-        m_gditoken = NULL;
+        m_gditoken = 0;
     }
     m_loaded = -1; // next Load() will try again
 }
@@ -1759,18 +1960,17 @@ void wxGDIPlusRenderer::Unload()
 wxGraphicsContext * wxGDIPlusRenderer::CreateContext( const wxWindowDC& dc)
 {
     ENSURE_LOADED_OR_RETURN(NULL);
-    wxMSWDCImpl *msw = wxDynamicCast( dc.GetImpl() , wxMSWDCImpl );
-    wxSize sz = dc.GetSize();
-    return new wxGDIPlusContext(this,(HDC) msw->GetHDC(), sz.x, sz.y);
+    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);
-    wxMSWDCImpl *msw = wxDynamicCast( dc.GetImpl() , wxMSWDCImpl );
-    wxSize sz = dc.GetSize();
-    return new wxGDIPlusContext(this,(HDC) msw->GetHDC(), sz.x, sz.y);
+    wxGDIPlusContext* context = new wxGDIPlusPrintingContext(this, dc);
+    return context;
 }
 #endif
 
@@ -1778,20 +1978,30 @@ wxGraphicsContext * wxGDIPlusRenderer::CreateContext( const wxPrinterDC& dc)
 wxGraphicsContext * wxGDIPlusRenderer::CreateContext( const wxEnhMetaFileDC& dc)
 {
     ENSURE_LOADED_OR_RETURN(NULL);
-    wxMSWDCImpl *msw = wxDynamicCast( dc.GetImpl() , wxMSWDCImpl );
-    wxSize sz = dc.GetSize();
-    return new wxGDIPlusContext(this,(HDC) msw->GetHDC(), sz.x, sz.y);
+    wxGDIPlusContext* context = new wxGDIPlusPrintingContext(this, dc);
+    return context;
 }
 #endif
 
 wxGraphicsContext * wxGDIPlusRenderer::CreateContext( const wxMemoryDC& dc)
 {
     ENSURE_LOADED_OR_RETURN(NULL);
-    wxMSWDCImpl *msw = wxDynamicCast( dc.GetImpl() , wxMSWDCImpl );
-    wxSize sz = dc.GetSize();
-    return new wxGDIPlusContext(this,(HDC) msw->GetHDC(), sz.x, sz.y);
+    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()
 {
     ENSURE_LOADED_OR_RETURN(NULL);
@@ -1845,7 +2055,7 @@ wxGraphicsMatrix wxGDIPlusRenderer::CreateMatrix( wxDouble a, wxDouble b, wxDoub
 wxGraphicsPen wxGDIPlusRenderer::CreatePen(const wxPen& pen)
 {
     ENSURE_LOADED_OR_RETURN(wxNullGraphicsPen);
-    if ( !pen.Ok() || pen.GetStyle() == wxTRANSPARENT )
+    if ( !pen.IsOk() || pen.GetStyle() == wxTRANSPARENT )
         return wxNullGraphicsPen;
     else
     {
@@ -1858,7 +2068,7 @@ wxGraphicsPen wxGDIPlusRenderer::CreatePen(const wxPen& pen)
 wxGraphicsBrush wxGDIPlusRenderer::CreateBrush(const wxBrush& brush )
 {
     ENSURE_LOADED_OR_RETURN(wxNullGraphicsBrush);
-    if ( !brush.Ok() || brush.GetStyle() == wxTRANSPARENT )
+    if ( !brush.IsOk() || brush.GetStyle() == wxTRANSPARENT )
         return wxNullGraphicsBrush;
     else
     {
@@ -1895,24 +2105,50 @@ wxGDIPlusRenderer::CreateRadialGradientBrush(wxDouble xo, wxDouble yo,
     return p;
 }
 
-// sets the font
-wxGraphicsFont wxGDIPlusRenderer::CreateFont( const wxFont &font , const wxColour &col )
+wxGraphicsFont
+wxGDIPlusRenderer::CreateFont( const wxFont &font,
+                               const wxColour &col )
 {
     ENSURE_LOADED_OR_RETURN(wxNullGraphicsFont);
-    if ( font.Ok() )
+    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.Ok() )
+    if ( bitmap.IsOk() )
     {
         wxGraphicsBitmap p;
         p.SetRefData(new wxGDIPlusBitmapData( this , bitmap ));
@@ -1922,6 +2158,40 @@ wxGraphicsBitmap wxGDIPlusRenderer::CreateBitmap( const wxBitmap &bitmap )
         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);
@@ -1972,6 +2242,14 @@ WXHDC wxGCDC::AcquireHDC()
     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;
 }
@@ -1984,6 +2262,14 @@ void wxGCDC::ReleaseHDC(WXHDC hdc)
     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" );