#include "wx/wxprec.h"
-#include "wx/dc.h"
-
#ifdef __BORLANDC__
-#pragma hdrstop
+ #pragma hdrstop
#endif
-#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"
+
+#if wxUSE_GRAPHICS_CONTEXT
+
+#ifndef WX_PRECOMP
+ #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"
-#if wxUSE_GRAPHICS_CONTEXT
+#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 "wx/msw/private.h" // needs to be before #include <commdlg.h>
-#include <vector>
+#if wxUSE_COMMON_DIALOGS && !defined(__WXMICROWIN__)
+#include <commdlg.h>
+#endif
-using namespace std;
+namespace
+{
//-----------------------------------------------------------------------------
// constants
// 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; }
-static inline double DegToRad(double deg) { return (deg * M_PI) / 180.0; }
-static 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());
+}
+
+} // anonymous namespace
//-----------------------------------------------------------------------------
// device context implementation
// wxGraphicsPath implementation
//-----------------------------------------------------------------------------
-#include "wx/msw/private.h" // needs to be before #include <commdlg.h>
-
-#if wxUSE_COMMON_DIALOGS && !defined(__WXMICROWIN__)
-#include <commdlg.h>
-#endif
-
-// TODO remove this dependency (gdiplus needs the macros)
-
-#ifndef max
-#define max(a,b) (((a) > (b)) ? (a) : (b))
-#endif
-
-#ifndef min
-#define min(a,b) (((a) < (b)) ? (a) : (b))
-#endif
-
-#include "gdiplus.h"
-using namespace Gdiplus;
-
-class GDILoader
-{
-public :
- GDILoader()
- {
- m_loaded = false;
- m_gditoken = NULL;
- }
-
- ~GDILoader()
- {
- if (m_loaded)
- {
- Unload();
- }
- }
- void EnsureIsLoaded()
- {
- if (!m_loaded)
- {
- Load();
- }
- }
- void Load()
- {
- GdiplusStartupInput input;
- GdiplusStartupOutput output;
- GdiplusStartup(&m_gditoken,&input,&output);
- m_loaded = true;
- }
- void Unload()
- {
- if ( m_gditoken )
- GdiplusShutdown(m_gditoken);
- }
-private :
- bool m_loaded;
- DWORD m_gditoken;
-
-};
-
-static GDILoader gGDILoader;
+class wxGDIPlusContext;
-class WXDLLEXPORT wxGDIPlusPath : public wxGraphicsPath
+class wxGDIPlusPathData : public wxGraphicsPathData
{
public :
- wxGDIPlusPath();
- ~wxGDIPlusPath();
+ wxGDIPlusPathData(wxGraphicsRenderer* renderer, GraphicsPath* path = NULL);
+ ~wxGDIPlusPathData();
+ virtual wxGraphicsObjectRefData *Clone() const;
//
// These are the path primitives from which everything else can be constructed
// begins a new subpath at (x,y)
virtual void MoveToPoint( wxDouble x, wxDouble y );
- // adds a straight line from the current point to (x,y)
+ // adds a straight line from the current point to (x,y)
virtual void AddLineToPoint( wxDouble x, wxDouble y );
// adds a cubic Bezier curve from the current point, using two control points and an end point
virtual void AddCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble cx2, wxDouble cy2, wxDouble x, wxDouble y );
- // adds an arc of a circle centering at (x,y) with radius (r) from startAngle to endAngle
+ // adds an arc of a circle centering at (x,y) with radius (r) from startAngle to endAngle
virtual void AddArc( wxDouble x, wxDouble y, wxDouble r, wxDouble startAngle, wxDouble endAngle, bool clockwise ) ;
// gets the last point of the current path, (0,0) if not yet set
- virtual void GetCurrentPoint( wxDouble& x, wxDouble&y) ;
+ virtual void GetCurrentPoint( wxDouble* x, wxDouble* y) const;
+
+ // adds another path
+ virtual void AddPath( const wxGraphicsPathData* path );
// closes the current sub-path
virtual void CloseSubpath();
//
- // These are convenience functions which - if not available natively will be assembled
+ // These are convenience functions which - if not available natively will be assembled
// using the primitives from above
//
- // appends a rectangle as a new closed subpath
+ // appends a rectangle as a new closed subpath
virtual void AddRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h ) ;
/*
virtual void AddArcToPoint( wxDouble x1, wxDouble y1 , wxDouble x2, wxDouble y2, wxDouble r ) ;
*/
- // returns the native path
- virtual void * GetNativePath() const { return m_path; }
-
- // give the native path returned by GetNativePath() back (there might be some deallocations necessary)
- virtual void UnGetNativePath(void * WXUNUSED(path)) {}
+ // returns the native path
+ virtual void * GetNativePath() const { return m_path; }
+
+ // give the native path returned by GetNativePath() back (there might be some deallocations necessary)
+ virtual void UnGetNativePath(void * WXUNUSED(path)) const {}
+
+ // transforms each point of this path by the matrix
+ virtual void Transform( const wxGraphicsMatrixData* matrix ) ;
+
+ // 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, wxPolygonFillMode fillStyle = wxODDEVEN_RULE) const;
private :
GraphicsPath* m_path;
- DECLARE_DYNAMIC_CLASS_NO_COPY(wxGDIPlusPath)
};
-class WXDLLEXPORT wxGDIPlusContext : public wxGraphicsContext
+class wxGDIPlusMatrixData : public wxGraphicsMatrixData
{
-public:
- wxGDIPlusContext( HDC hdc );
- wxGDIPlusContext( HWND hwnd );
- wxGDIPlusContext( Graphics* gr);
- wxGDIPlusContext();
+public :
+ wxGDIPlusMatrixData(wxGraphicsRenderer* renderer, Matrix* matrix = NULL) ;
+ virtual ~wxGDIPlusMatrixData() ;
- virtual ~wxGDIPlusContext();
+ virtual wxGraphicsObjectRefData* Clone() const ;
- virtual void Clip( const wxRegion ®ion );
- // clips drawings to the rect
- virtual void Clip( wxDouble x, wxDouble y, wxDouble w, wxDouble h );
-
- // resets the clipping to original extent
- virtual void ResetClip();
-
- virtual void * GetNativeContext();
-
- virtual void StrokePath( const wxGraphicsPath *p );
- virtual void FillPath( const wxGraphicsPath *p , int fillStyle = wxWINDING_RULE );
-
- virtual wxGraphicsPath* CreatePath();
- virtual void SetPen( const wxPen &pen );
- virtual void SetBrush( const wxBrush &brush );
- virtual void SetLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2, const wxColour&c1, const wxColour&c2) ;
- virtual void SetRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
- const wxColour &oColor, const wxColour &cColor);
-
- virtual void Translate( wxDouble dx , wxDouble dy );
- virtual void Scale( wxDouble xScale , wxDouble yScale );
- virtual void Rotate( wxDouble angle );
+ // concatenates the matrix
+ virtual void Concat( const wxGraphicsMatrixData *t );
- 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();
+ // sets the matrix to the respective values
+ virtual void Set(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 void SetFont( const wxFont &font );
- virtual void SetTextColor( const wxColour &col );
- 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;
+ // gets the component valuess of the matrix
+ virtual void Get(wxDouble* a=NULL, wxDouble* b=NULL, wxDouble* c=NULL,
+ wxDouble* d=NULL, wxDouble* tx=NULL, wxDouble* ty=NULL) const;
+
+ // makes this the inverse matrix
+ virtual void Invert();
+
+ // returns true if the elements of the transformation matrix are equal ?
+ virtual bool IsEqual( const wxGraphicsMatrixData* t) const ;
+
+ // return true if this is the identity matrix
+ virtual bool IsIdentity() const;
+
+ //
+ // transformation
+ //
+
+ // add the translation to this matrix
+ virtual void Translate( wxDouble dx , wxDouble dy );
+
+ // add the scale to this matrix
+ virtual void Scale( wxDouble xScale , wxDouble yScale );
+
+ // add the rotation to this matrix (radians)
+ virtual void Rotate( wxDouble angle );
+
+ //
+ // apply the transforms
+ //
+
+ // applies that matrix to the point
+ virtual void TransformPoint( wxDouble *x, wxDouble *y ) const;
+
+ // applies the matrix except for translations
+ virtual void TransformDistance( wxDouble *dx, wxDouble *dy ) const;
+ // returns the native representation
+ virtual void * GetNativeMatrix() const;
private:
- void Init();
- void SetDefaults();
+ Matrix* m_matrix ;
+} ;
- Graphics* m_context;
- vector<GraphicsState> m_stateStack;
- GraphicsState m_state1;
- GraphicsState m_state2;
+class wxGDIPlusPenData : public wxGraphicsObjectRefData
+{
+public:
+ wxGDIPlusPenData( wxGraphicsRenderer* renderer, const wxPen &pen );
+ ~wxGDIPlusPenData();
+
+ void Init();
+ virtual wxDouble GetWidth() { return m_width; }
+ virtual Pen* GetGDIPlusPen() { return m_pen; }
+
+protected :
Pen* m_pen;
- bool m_penTransparent;
Image* m_penImage;
Brush* m_penBrush;
-
+
+ wxDouble m_width;
+};
+
+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 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:
+ // common part of Create{Linear,Radial}GradientBrush()
+ template <typename T>
+ void SetGradientStops(T *brush, const wxGraphicsGradientStops& stops);
+
Brush* m_brush;
- bool m_brushTransparent;
Image* m_brushImage;
GraphicsPath* m_brushPath;
+};
+
+class WXDLLIMPEXP_CORE wxGDIPlusBitmapData : public wxGraphicsObjectRefData
+{
+public:
+ wxGDIPlusBitmapData( wxGraphicsRenderer* renderer, Bitmap* bitmap );
+ wxGDIPlusBitmapData( wxGraphicsRenderer* renderer, const wxBitmap &bmp );
+ ~wxGDIPlusBitmapData ();
+
+ virtual Bitmap* GetGDIPlusBitmap() { 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 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;
- // wxPen m_pen;
- // wxBrush m_brush;
- DECLARE_DYNAMIC_CLASS_NO_COPY(wxGDIPlusContext)
};
-IMPLEMENT_DYNAMIC_CLASS(wxGDIPlusPath,wxGraphicsPath)
-
-wxGDIPlusPath::wxGDIPlusPath()
+class wxGDIPlusContext : public wxGraphicsContext
{
- m_path = new GraphicsPath();
-}
+public:
+ 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(wxGraphicsRenderer* renderer);
-wxGDIPlusPath::~wxGDIPlusPath()
-{
- delete m_path;
-}
+ virtual ~wxGDIPlusContext();
-//
-// The Primitives
-//
+ virtual void Clip( const wxRegion ®ion );
+ // clips drawings to the rect
+ virtual void Clip( wxDouble x, wxDouble y, wxDouble w, wxDouble h );
-void wxGDIPlusPath::MoveToPoint( wxDouble x , wxDouble y )
-{
- m_path->StartFigure();
- m_path->AddLine((REAL) x,(REAL) y,(REAL) x,(REAL) y);
-}
+ // resets the clipping to original extent
+ virtual void ResetClip();
-void wxGDIPlusPath::AddLineToPoint( wxDouble x , wxDouble y )
-{
- m_path->AddLine((REAL) x,(REAL) y,(REAL) x,(REAL) y);
-}
+ virtual void * GetNativeContext();
-void wxGDIPlusPath::CloseSubpath()
-{
- m_path->CloseFigure();
-}
+ virtual void StrokePath( const wxGraphicsPath& p );
+ virtual void FillPath( const wxGraphicsPath& p , wxPolygonFillMode fillStyle = wxODDEVEN_RULE );
-void wxGDIPlusPath::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);
-}
+ virtual void DrawRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h );
-// gets the last point of the current path, (0,0) if not yet set
-void wxGDIPlusPath::GetCurrentPoint( wxDouble& x, wxDouble&y)
-{
- PointF start;
- m_path->GetLastPoint(&start);
- x = start.X ;
- y = start.Y ;
-}
+ // stroke lines connecting each of the points
+ virtual void StrokeLines( size_t n, const wxPoint2DDouble *points);
-void wxGDIPlusPath::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
- {
- if ( clockwise )
- {
- if( sweepAngle < 0 )
- sweepAngle += 2 * M_PI;
- }
- else
- {
- if( sweepAngle > 0 )
- sweepAngle -= 2 * M_PI;
+ // draws a polygon
+ virtual void DrawLines( size_t n, const wxPoint2DDouble *points, wxPolygonFillMode fillStyle = wxODDEVEN_RULE );
- }
- }
- m_path->AddArc((REAL) (x-r),(REAL) (y-r),(REAL) (2*r),(REAL) (2*r),RadToDeg(startAngle),RadToDeg(sweepAngle));
-}
+ virtual bool SetAntialiasMode(wxAntialiasMode antialias);
-void wxGDIPlusPath::AddRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
-{
- m_path->AddRectangle(RectF(x,y,w,h));
-}
+ virtual bool SetInterpolationQuality(wxInterpolationQuality interpolation);
+
+ virtual bool SetCompositionMode(wxCompositionMode op);
-//-----------------------------------------------------------------------------
-// wxGDIPlusContext implementation
-//-----------------------------------------------------------------------------
+ virtual void BeginLayer(wxDouble opacity);
-IMPLEMENT_DYNAMIC_CLASS(wxGDIPlusContext,wxGraphicsContext)
+ virtual void EndLayer();
-wxGDIPlusContext::wxGDIPlusContext( HDC hdc )
-{
- Init();
- m_context = new Graphics( hdc);
- SetDefaults();
-}
+ virtual void Translate( wxDouble dx , wxDouble dy );
+ virtual void Scale( wxDouble xScale , wxDouble yScale );
+ virtual void Rotate( wxDouble angle );
-wxGDIPlusContext::wxGDIPlusContext( HWND hwnd )
-{
- Init();
- m_context = new Graphics( hwnd);
- SetDefaults();
-}
+ // concatenates this transform with the current transform of this context
+ virtual void ConcatTransform( const wxGraphicsMatrix& matrix );
-wxGDIPlusContext::wxGDIPlusContext( Graphics* gr )
-{
- Init();
- m_context = gr;
- SetDefaults();
-}
+ // sets the transform of this context
+ virtual void SetTransform( const wxGraphicsMatrix& matrix );
-void wxGDIPlusContext::Init()
-{
- gGDILoader.EnsureIsLoaded();
- m_context = NULL;
- m_state1 = 0;
- m_state2= 0;
+ // gets the matrix of this context
+ virtual wxGraphicsMatrix GetTransform() const;
- m_pen = NULL;
- m_penTransparent = true;
- m_penImage = NULL;
- m_penBrush = NULL;
+ 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();
- m_brush = NULL;
- m_brushTransparent = true;
- m_brushImage = NULL;
- m_brushPath = NULL;
+ 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 );
- m_textBrush = NULL;
- m_font = NULL;
-}
+ Graphics* GetGraphics() const { return m_context; }
-void wxGDIPlusContext::SetDefaults()
-{
- m_context->SetSmoothingMode(SmoothingModeHighQuality);
- m_state1 = m_context->Save();
- m_state2 = m_context->Save();
- // set defaults
+protected:
- m_penTransparent = false;
- m_pen = new Pen((ARGB)Color::Black);
- m_penImage = NULL;
- m_penBrush = NULL;
+ wxDouble m_fontScaleRatio;
- m_brushTransparent = false;
- m_brush = new SolidBrush((ARGB)Color::White);
- m_brushImage = NULL;
- m_brushPath = NULL;
- m_textBrush = new SolidBrush((ARGB)Color::Black);
- m_font = new Font( L"Arial" , 9 , FontStyleRegular );
-}
+ // 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);
-wxGDIPlusContext::~wxGDIPlusContext()
+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;
+ wxStack<GraphicsState> m_stateStack;
+ GraphicsState m_state1;
+ GraphicsState m_state2;
+
+ wxDECLARE_NO_COPY_CLASS(wxGDIPlusContext);
+};
+
+#if wxUSE_IMAGE
+
+class wxGDIPlusImageContext : public wxGDIPlusContext
{
- if ( m_context )
+public:
+ wxGDIPlusImageContext(wxGraphicsRenderer* renderer, wxImage& image) :
+ wxGDIPlusContext(renderer),
+ m_image(image),
+ m_bitmap(renderer, image)
{
- m_context->Restore( m_state2 );
- m_context->Restore( m_state1 );
- delete m_context;
- delete m_pen;
- delete m_penImage;
- delete m_penBrush;
- delete m_brush;
- delete m_brushImage;
- delete m_brushPath;
- delete m_textBrush;
- delete m_font;
+ Init
+ (
+ new Graphics(m_bitmap.GetGDIPlusBitmap()),
+ image.GetWidth(),
+ image.GetHeight()
+ );
}
-}
-
-void wxGDIPlusContext::Clip( const wxRegion ®ion )
-{
- m_context->SetClip((HRGN)region.GetHRGN(),CombineModeIntersect);
-}
+ virtual ~wxGDIPlusImageContext()
+ {
+ m_image = m_bitmap.ConvertToImage();
+ }
-void wxGDIPlusContext::Clip( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
-{
- m_context->SetClip(RectF(x,y,w,h),CombineModeIntersect);
-}
-
-void wxGDIPlusContext::ResetClip()
-{
- m_context->ResetClip();
-}
+private:
+ wxImage& m_image;
+ wxGDIPlusBitmapData m_bitmap;
-void wxGDIPlusContext::StrokePath( const wxGraphicsPath *path )
-{
- if ( m_penTransparent )
- return;
+ wxDECLARE_NO_COPY_CLASS(wxGDIPlusImageContext);
+};
- m_context->DrawPath( m_pen , (GraphicsPath*) path->GetNativePath() );
-}
+#endif // wxUSE_IMAGE
-void wxGDIPlusContext::FillPath( const wxGraphicsPath *path , int fillStyle )
+class wxGDIPlusMeasuringContext : public wxGDIPlusContext
{
- if ( !m_brushTransparent )
+public:
+ wxGDIPlusMeasuringContext( wxGraphicsRenderer* renderer ) : wxGDIPlusContext( renderer , m_hdc = GetDC(NULL), 1000, 1000 )
{
- ((GraphicsPath*) path->GetNativePath())->SetFillMode( fillStyle == wxODDEVEN_RULE ? FillModeAlternate : FillModeWinding);
- m_context->FillPath( m_brush , (GraphicsPath*) path->GetNativePath());
}
-}
-wxGraphicsPath* wxGDIPlusContext::CreatePath()
-{
- return new wxGDIPlusPath();
-}
+ virtual ~wxGDIPlusMeasuringContext()
+ {
+ ReleaseDC( NULL, m_hdc );
+ }
-void wxGDIPlusContext::Rotate( wxDouble angle )
-{
- m_context->RotateTransform( RadToDeg(angle) );
-}
+private:
+ HDC m_hdc ;
+} ;
-void wxGDIPlusContext::Translate( wxDouble dx , wxDouble dy )
+class wxGDIPlusPrintingContext : public wxGDIPlusContext
{
- m_context->TranslateTransform( dx , dy );
-}
+public:
+ wxGDIPlusPrintingContext( wxGraphicsRenderer* renderer, const wxDC& dc );
+ virtual ~wxGDIPlusPrintingContext() { }
+protected:
+};
-void wxGDIPlusContext::Scale( wxDouble xScale , wxDouble yScale )
-{
- m_context->ScaleTransform(xScale,yScale);
-}
+//-----------------------------------------------------------------------------
+// wxGDIPlusRenderer declaration
+//-----------------------------------------------------------------------------
-void wxGDIPlusContext::PushState()
+class wxGDIPlusRenderer : public wxGraphicsRenderer
{
- GraphicsState state = m_context->Save();
- m_stateStack.push_back(state);
-}
+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();
-void wxGDIPlusContext::PopState()
+ // 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
+//-----------------------------------------------------------------------------
+
+wxGDIPlusPenData::~wxGDIPlusPenData()
{
- GraphicsState state = m_stateStack.back();
- m_stateStack.pop_back();
- m_context->Restore(state);
+ delete m_pen;
+ delete m_penImage;
+ delete m_penBrush;
}
-void wxGDIPlusContext::SetTextColor( const wxColour &col )
+void wxGDIPlusPenData::Init()
{
- delete m_textBrush;
- m_textBrush = new SolidBrush( Color( col.Alpha() , col.Red() ,
- col.Green() , col.Blue() ));
+ m_pen = NULL ;
+ m_penImage = NULL;
+ m_penBrush = NULL;
}
-void wxGDIPlusContext::SetPen( const wxPen &pen )
+wxGDIPlusPenData::wxGDIPlusPenData( wxGraphicsRenderer* renderer, const wxPen &pen )
+: wxGraphicsObjectRefData(renderer)
{
- m_penTransparent = pen.GetStyle() == wxTRANSPARENT;
- if ( m_penTransparent )
- return;
-
- m_pen->SetColor( Color( pen.GetColour().Alpha() , pen.GetColour().Red() ,
- pen.GetColour().Green() , pen.GetColour().Blue() ) );
+ Init();
+ m_width = pen.GetWidth();
+ if (m_width <= 0.0)
+ m_width = 0.1;
- // TODO: * m_dc->m_scaleX
- double penWidth = pen.GetWidth();
- if (penWidth <= 0.0)
- penWidth = 0.1;
+ m_pen = new Pen(wxColourToColor(pen.GetColour()), m_width );
- m_pen->SetWidth(penWidth);
-
LineCap cap;
switch ( pen.GetCap() )
{
join = LineJoinMiter;
break;
}
-
+
m_pen->SetLineJoin(join);
m_pen->SetDashStyle(DashStyleSolid);
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;
}
}
break;
- case wxSTIPPLE :
+ case wxPENSTYLE_STIPPLE :
{
wxBitmap* bmp = pen.GetStipple();
- if ( bmp && bmp->Ok() )
+ if ( bmp && bmp->IsOk() )
{
- wxDELETE( m_penImage );
- wxDELETE( m_penBrush );
- 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 );
}
}
break;
default :
- if ( pen.GetStyle() >= wxFIRST_HATCH && pen.GetStyle() <= wxLAST_HATCH )
+ if ( pen.GetStyle() >= wxPENSTYLE_FIRST_HATCH &&
+ pen.GetStyle() <= wxPENSTYLE_LAST_HATCH )
{
- wxDELETE( m_penBrush );
- 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;
- }
+ }
if ( dashStyle != DashStyleSolid )
m_pen->SetDashStyle(dashStyle);
}
-void wxGDIPlusContext::SetBrush( const wxBrush &brush )
-{
-// m_brush = brush;
- if ( m_context == NULL )
- return;
-
- m_brushTransparent = brush.GetStyle() == wxTRANSPARENT;
-
- if ( m_brushTransparent )
- return;
+//-----------------------------------------------------------------------------
+// wxGDIPlusBrush implementation
+//-----------------------------------------------------------------------------
- wxDELETE(m_brush);
+wxGDIPlusBrushData::wxGDIPlusBrushData( wxGraphicsRenderer* renderer )
+: wxGraphicsObjectRefData(renderer)
+{
+ Init();
+}
+wxGDIPlusBrushData::wxGDIPlusBrushData( wxGraphicsRenderer* renderer , const wxBrush &brush )
+: wxGraphicsObjectRefData(renderer)
+{
+ 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
+ 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);
}
}
}
-void wxGDIPlusContext::SetLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2, const wxColour&c1, const wxColour&c2)
+wxGDIPlusBrushData::~wxGDIPlusBrushData()
+{
+ delete m_brush;
+ delete m_brushImage;
+ delete m_brushPath;
+};
+
+void wxGDIPlusBrushData::Init()
+{
+ m_brush = NULL;
+ m_brushImage= NULL;
+ m_brushPath= NULL;
+}
+
+template <typename T>
+void
+wxGDIPlusBrushData::SetGradientStops(T *brush,
+ const wxGraphicsGradientStops& stops)
{
- m_brushTransparent = false ;
+ 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);
- wxDELETE(m_brush);
+ for ( unsigned i = 0; i < numStops; i++ )
+ {
+ wxGraphicsGradientStop stop = stops.Item(i);
+
+ colors[i] = wxColourToColor(stop.GetColour());
+ positions[i] = stop.GetPosition();
+ }
- 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() ));
+ brush->SetInterpolationColors(&colors[0], &positions[0], numStops);
}
-void wxGDIPlusContext::SetRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
- const wxColour &oColor, const wxColour &cColor)
+void
+wxGDIPlusBrushData::CreateLinearGradientBrush(wxDouble x1, wxDouble y1,
+ wxDouble x2, wxDouble y2,
+ const wxGraphicsGradientStops& stops)
{
- m_brushTransparent = false ;
+ LinearGradientBrush * const
+ brush = new LinearGradientBrush(PointF(x1, y1) , PointF(x2, y2),
+ wxColourToColor(stops.GetStartColour()),
+ wxColourToColor(stops.GetEndColour()));
+ m_brush = brush;
- wxDELETE(m_brush);
- wxDELETE(m_brushPath);
+ SetGradientStops(brush, stops);
+}
- // Create a path that consists of a single circle.
+void
+wxGDIPlusBrushData::CreateRadialGradientBrush(wxDouble xo, wxDouble yo,
+ wxDouble xc, wxDouble yc,
+ wxDouble radius,
+ const wxGraphicsGradientStops& stops)
+{
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
+//-----------------------------------------------------------------------------
+
+void
+wxGDIPlusFontData::Init(const wxString& name,
+ REAL size,
+ int style,
+ const wxColour& col,
+ Unit fontUnit)
+{
+ m_font = new Font(name.wc_str(), size, style, fontUnit);
+
+ m_textBrush = new SolidBrush(wxColourToColor(col));
+}
+
+wxGDIPlusFontData::wxGDIPlusFontData( wxGraphicsRenderer* renderer,
+ const wxFont &font,
+ const wxColour& col )
+ : wxGraphicsObjectRefData( renderer )
+{
+ int style = FontStyleRegular;
+ if ( font.GetStyle() == wxFONTSTYLE_ITALIC )
+ style |= FontStyleItalic;
+ if ( font.GetUnderlined() )
+ style |= FontStyleUnderline;
+ if ( font.GetWeight() == wxFONTWEIGHT_BOLD )
+ style |= FontStyleBold;
+
+ 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()
+{
+ delete m_textBrush;
+ 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
+// 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
+
+//-----------------------------------------------------------------------------
+// wxGDIPlusBitmapData implementation
+//-----------------------------------------------------------------------------
+
+wxGDIPlusBitmapData::wxGDIPlusBitmapData( wxGraphicsRenderer* renderer, Bitmap* bitmap ) :
+ wxGraphicsObjectRefData( renderer ), m_bitmap( bitmap )
+{
+ m_helper = NULL;
+}
-void wxGDIPlusContext::DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
+wxGDIPlusBitmapData::wxGDIPlusBitmapData( wxGraphicsRenderer* renderer,
+ const wxBitmap &bmp) : wxGraphicsObjectRefData( renderer )
{
+ m_bitmap = NULL;
+ m_helper = NULL;
+
Bitmap* image = NULL;
- Bitmap* helper = 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();
wxASSERT(interimMask.GetPixelFormat() == PixelFormat1bppIndexed);
BitmapData dataMask ;
- interimMask.LockBits(&bounds,ImageLockModeRead,
+ interimMask.LockBits(&bounds,ImageLockModeRead,
interimMask.GetPixelFormat(),&dataMask);
}
else
{
- image = Bitmap::FromHBITMAP((HBITMAP)bmp.GetHBITMAP(),(HPALETTE)bmp.GetPalette()->GetHPALETTE());
- if ( GetPixelFormatSize(image->GetPixelFormat()) == 32 )
+ 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);
- BitmapData data ;
+ static BitmapData data ;
- helper = image ;
+ m_helper = image ;
image = NULL ;
- helper->LockBits(&bounds, ImageLockModeRead,
- helper->GetPixelFormat(),&data);
+ m_helper->LockBits(&bounds, ImageLockModeRead,
+ m_helper->GetPixelFormat(),&data);
- image = new Bitmap(data.Width, data.Height, data.Stride,
- PixelFormat32bppARGB , (BYTE*) data.Scan0);
+ image = new Bitmap(data.Width, data.Height, data.Stride,
+ PixelFormat32bppPARGB , (BYTE*) data.Scan0);
- helper->UnlockBits(&data);
+ m_helper->UnlockBits(&data);
}
}
if ( image )
- m_context->DrawImage(image,(REAL) x,(REAL) y,(REAL) w,(REAL) h) ;
- delete image ;
- delete helper ;
+ m_bitmap = image;
}
-void wxGDIPlusContext::DrawIcon( const wxIcon &icon, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
+#if wxUSE_IMAGE
+
+wxImage wxGDIPlusBitmapData::ConvertToImage() const
{
- 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;
+ // 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();
+}
- BITMAP iconBmpData ;
- GetObject(iconInfo.hbmColor,sizeof(BITMAP),&iconBmpData);
- Bitmap interim(iconInfo.hbmColor,NULL);
+#endif // wxUSE_IMAGE
- Bitmap* image = NULL ;
+wxGDIPlusBitmapData::~wxGDIPlusBitmapData()
+{
+ delete m_bitmap;
+ delete m_helper;
+}
- if( GetPixelFormatSize(interim.GetPixelFormat())!= 32 )
- {
- image = Bitmap::FromHICON(hIcon);
- }
- else
- {
- size_t width = interim.GetWidth();
- size_t height = interim.GetHeight();
- Rect bounds(0,0,width,height);
- BitmapData data ;
+//-----------------------------------------------------------------------------
+// wxGDIPlusPath implementation
+//-----------------------------------------------------------------------------
- interim.LockBits(&bounds, ImageLockModeRead,
- interim.GetPixelFormat(),&data);
- image = new Bitmap(data.Width, data.Height, data.Stride,
- PixelFormat32bppARGB , (BYTE*) data.Scan0);
- interim.UnlockBits(&data);
- }
+wxGDIPlusPathData::wxGDIPlusPathData(wxGraphicsRenderer* renderer, GraphicsPath* path ) : wxGraphicsPathData(renderer)
+{
+ if ( path )
+ m_path = path;
+ else
+ m_path = new GraphicsPath();
+}
- m_context->DrawImage(image,(REAL) x,(REAL) y,(REAL) w,(REAL) h) ;
+wxGDIPlusPathData::~wxGDIPlusPathData()
+{
+ delete m_path;
+}
- delete image ;
- DeleteObject(iconInfo.hbmColor);
- DeleteObject(iconInfo.hbmMask);
+wxGraphicsObjectRefData* wxGDIPlusPathData::Clone() const
+{
+ return new wxGDIPlusPathData( GetRenderer() , m_path->Clone());
}
+//
+// The Primitives
+//
-void wxGDIPlusContext::DrawText( const wxString &str, wxDouble x, wxDouble y )
+void wxGDIPlusPathData::MoveToPoint( wxDouble x , wxDouble y )
{
- if ( str.IsEmpty())
- return ;
+ m_path->StartFigure();
+ m_path->AddLine((REAL) x,(REAL) y,(REAL) x,(REAL) y);
+}
- wxWCharBuffer s = str.wc_str( *wxConvUI );
- m_context->DrawString( s , -1 , m_font , PointF( x , y ) , m_textBrush );
- // TODO m_backgroundMode == wxSOLID
+void wxGDIPlusPathData::AddLineToPoint( wxDouble x , wxDouble y )
+{
+ m_path->AddLine((REAL) x,(REAL) y,(REAL) x,(REAL) y);
}
-void wxGDIPlusContext::GetTextExtent( const wxString &str, wxDouble *width, wxDouble *height,
- wxDouble *descent, wxDouble *externalLeading ) const
+void wxGDIPlusPathData::CloseSubpath()
{
- wxWCharBuffer s = str.wc_str( *wxConvUI );
- FontFamily ffamily ;
-
- m_font->GetFamily(&ffamily) ;
+ m_path->CloseFigure();
+}
- REAL factorY = m_context->GetDpiY() / 72.0 ;
+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);
+}
- REAL rDescent = ffamily.GetCellDescent(FontStyleRegular) *
- m_font->GetSize() / ffamily.GetEmHeight(FontStyleRegular);
- REAL rAscent = ffamily.GetCellAscent(FontStyleRegular) *
- m_font->GetSize() / ffamily.GetEmHeight(FontStyleRegular);
- REAL rHeight = ffamily.GetLineSpacing(FontStyleRegular) *
- m_font->GetSize() / ffamily.GetEmHeight(FontStyleRegular);
+// 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 ;
+}
- if ( height )
- *height = rHeight * factorY + 0.5 ;
- if ( descent )
- *descent = rDescent * factorY + 0.5 ;
- if ( externalLeading )
- *externalLeading = (rHeight - rAscent - rDescent) * factorY + 0.5 ;
- // measuring empty strings is not guaranteed, so do it by hand
- if ( str.IsEmpty())
+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)
{
- if ( width )
- *width = 0 ;
+ sweepAngle = 2 * M_PI;
}
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 , m_font,layoutRect, &strFormat,1,®ion) ;
- RectF bbox ;
- region.GetBounds(&bbox,m_context);
- if ( width )
- *width = bbox.GetRight()-bbox.GetLeft()+0.5;
- }
+ if ( clockwise )
+ {
+ if( sweepAngle < 0 )
+ sweepAngle += 2 * M_PI;
+ }
+ else
+ {
+ if( sweepAngle > 0 )
+ sweepAngle -= 2 * M_PI;
+
+ }
+ }
+ m_path->AddArc((REAL) (x-r),(REAL) (y-r),(REAL) (2*r),(REAL) (2*r),RadToDeg(startAngle),RadToDeg(sweepAngle));
}
-void wxGDIPlusContext::GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const
+void wxGDIPlusPathData::AddRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
{
- widths.Empty();
- widths.Add(0, text.length());
-
- if (text.empty())
- return;
+ m_path->AddRectangle(RectF(x,y,w,h));
+}
- wxWCharBuffer ws = text.wc_str( *wxConvUI );
- size_t len = wcslen( ws ) ;
- wxASSERT_MSG(text.length() == len , wxT("GetPartialTextExtents not yet implemented for multichar situations"));
+void wxGDIPlusPathData::AddPath( const wxGraphicsPathData* path )
+{
+ m_path->AddPath( (GraphicsPath*) path->GetNativePath(), FALSE);
+}
- RectF layoutRect(0,0, 100000.0f, 100000.0f);
- StringFormat strFormat;
- CharacterRange* ranges = new CharacterRange[len] ;
- Region* regions = new Region[len];
- for( size_t i = 0 ; i < len ; ++i)
- {
- ranges[i].First = i ;
- ranges[i].Length = 1 ;
- }
- strFormat.SetMeasurableCharacterRanges(len,ranges);
- m_context->MeasureCharacterRanges(ws, -1 , m_font,layoutRect, &strFormat,1,regions) ;
+// transforms each point of this path by the matrix
+void wxGDIPlusPathData::Transform( const wxGraphicsMatrixData* matrix )
+{
+ m_path->Transform( (Matrix*) matrix->GetNativeMatrix() );
+}
- RectF bbox ;
- for ( size_t i = 0 ; i < len ; ++i)
- {
- regions[i].GetBounds(&bbox,m_context);
- widths[i] = bbox.GetRight()-bbox.GetLeft();
- }
+// gets the bounding box enclosing all points (possibly including control points)
+void wxGDIPlusPathData::GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *h) const
+{
+ RectF bounds;
+ m_path->GetBounds( &bounds, NULL, NULL) ;
+ *x = bounds.X;
+ *y = bounds.Y;
+ *w = bounds.Width;
+ *h = bounds.Height;
}
-void wxGDIPlusContext::SetFont( const wxFont &font )
+bool wxGDIPlusPathData::Contains( wxDouble x, wxDouble y, wxPolygonFillMode fillStyle ) const
{
- wxASSERT( font.Ok());
- delete m_font;
- wxWCharBuffer s = font.GetFaceName().wc_str( *wxConvUI );
- int size = font.GetPointSize();
- int style = FontStyleRegular;
- if ( font.GetStyle() == wxFONTSTYLE_ITALIC )
+ m_path->SetFillMode( fillStyle == wxODDEVEN_RULE ? FillModeAlternate : FillModeWinding);
+ return m_path->IsVisible( (FLOAT) x,(FLOAT) y) == TRUE ;
+}
+
+//-----------------------------------------------------------------------------
+// wxGDIPlusMatrixData implementation
+//-----------------------------------------------------------------------------
+
+wxGDIPlusMatrixData::wxGDIPlusMatrixData(wxGraphicsRenderer* renderer, Matrix* matrix )
+ : wxGraphicsMatrixData(renderer)
+{
+ if ( matrix )
+ m_matrix = matrix ;
+ else
+ m_matrix = new Matrix();
+}
+
+wxGDIPlusMatrixData::~wxGDIPlusMatrixData()
+{
+ delete m_matrix;
+}
+
+wxGraphicsObjectRefData *wxGDIPlusMatrixData::Clone() const
+{
+ return new wxGDIPlusMatrixData( GetRenderer(), m_matrix->Clone());
+}
+
+// concatenates the matrix
+void wxGDIPlusMatrixData::Concat( const wxGraphicsMatrixData *t )
+{
+ m_matrix->Multiply( (Matrix*) t->GetNativeMatrix());
+}
+
+// sets the matrix to the respective values
+void wxGDIPlusMatrixData::Set(wxDouble a, wxDouble b, wxDouble c, wxDouble d,
+ wxDouble tx, wxDouble ty)
+{
+ m_matrix->SetElements(a,b,c,d,tx,ty);
+}
+
+// gets the component valuess of the matrix
+void wxGDIPlusMatrixData::Get(wxDouble* a, wxDouble* b, wxDouble* c,
+ wxDouble* d, wxDouble* tx, wxDouble* ty) const
+{
+ REAL elements[6];
+ m_matrix->GetElements(elements);
+ if (a) *a = elements[0];
+ if (b) *b = elements[1];
+ if (c) *c = elements[2];
+ if (d) *d = elements[3];
+ if (tx) *tx= elements[4];
+ if (ty) *ty= elements[5];
+}
+
+// makes this the inverse matrix
+void wxGDIPlusMatrixData::Invert()
+{
+ m_matrix->Invert();
+}
+
+// returns true if the elements of the transformation matrix are equal ?
+bool wxGDIPlusMatrixData::IsEqual( const wxGraphicsMatrixData* t) const
+{
+ return m_matrix->Equals((Matrix*) t->GetNativeMatrix())== TRUE ;
+}
+
+// return true if this is the identity matrix
+bool wxGDIPlusMatrixData::IsIdentity() const
+{
+ return m_matrix->IsIdentity() == TRUE ;
+}
+
+//
+// transformation
+//
+
+// add the translation to this matrix
+void wxGDIPlusMatrixData::Translate( wxDouble dx , wxDouble dy )
+{
+ m_matrix->Translate(dx,dy);
+}
+
+// add the scale to this matrix
+void wxGDIPlusMatrixData::Scale( wxDouble xScale , wxDouble yScale )
+{
+ m_matrix->Scale(xScale,yScale);
+}
+
+// add the rotation to this matrix (radians)
+void wxGDIPlusMatrixData::Rotate( wxDouble angle )
+{
+ m_matrix->Rotate( RadToDeg(angle) );
+}
+
+//
+// apply the transforms
+//
+
+// applies that matrix to the point
+void wxGDIPlusMatrixData::TransformPoint( wxDouble *x, wxDouble *y ) const
+{
+ PointF pt(*x,*y);
+ m_matrix->TransformPoints(&pt);
+ *x = pt.X;
+ *y = pt.Y;
+}
+
+// applies the matrix except for translations
+void wxGDIPlusMatrixData::TransformDistance( wxDouble *dx, wxDouble *dy ) const
+{
+ PointF pt(*dx,*dy);
+ m_matrix->TransformVectors(&pt);
+ *dx = pt.X;
+ *dy = pt.Y;
+}
+
+// returns the native representation
+void * wxGDIPlusMatrixData::GetNativeMatrix() const
+{
+ return m_matrix;
+}
+
+//-----------------------------------------------------------------------------
+// wxGDIPlusContext implementation
+//-----------------------------------------------------------------------------
+
+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, wxDouble width, wxDouble height )
+ : wxGraphicsContext(renderer)
+{
+ 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)
+{
+ RECT rect = wxGetWindowRect(hwnd);
+ Init(new Graphics(hwnd), rect.right - rect.left, rect.bottom - rect.top);
+ m_enableOffset = true;
+}
+
+wxGDIPlusContext::wxGDIPlusContext( wxGraphicsRenderer* renderer, Graphics* gr )
+ : wxGraphicsContext(renderer)
+{
+ Init(gr, 0, 0);
+}
+
+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;
+}
+
+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_state1 = m_context->Save();
+ m_state2 = m_context->Save();
+}
+
+wxGDIPlusContext::~wxGDIPlusContext()
+{
+ if ( m_context )
+ {
+ m_context->Restore( m_state2 );
+ m_context->Restore( m_state1 );
+ delete m_context;
+ }
+}
+
+
+void wxGDIPlusContext::Clip( const wxRegion ®ion )
+{
+ Region rgn((HRGN)region.GetHRGN());
+ m_context->SetClip(&rgn,CombineModeIntersect);
+}
+
+void wxGDIPlusContext::Clip( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
+{
+ m_context->SetClip(RectF(x,y,w,h),CombineModeIntersect);
+}
+
+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 , 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 WXUNUSED(interpolation))
+{
+ // placeholder
+ return false;
+}
+
+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) );
+}
+
+void wxGDIPlusContext::Translate( wxDouble dx , wxDouble dy )
+{
+ m_context->TranslateTransform( dx , dy );
+}
+
+void wxGDIPlusContext::Scale( wxDouble xScale , wxDouble yScale )
+{
+ m_context->ScaleTransform(xScale,yScale);
+}
+
+void wxGDIPlusContext::PushState()
+{
+ GraphicsState state = m_context->Save();
+ m_stateStack.push(state);
+}
+
+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);
+}
+
+void wxGDIPlusContext::DrawBitmap( const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
+{
+ if (m_composition == wxCOMPOSITION_DEST)
+ return;
+
+ Bitmap* image = static_cast<wxGDIPlusBitmapData*>(bmp.GetRefData())->GetGDIPlusBitmap();
+ if ( image )
+ {
+ if( image->GetWidth() != (UINT) w || image->GetHeight() != (UINT) h )
+ {
+ 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) ;
+ }
+}
+
+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 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);
+ }
+ else
+ {
+ size_t width = interim.GetWidth();
+ size_t height = interim.GetHeight();
+ Rect bounds(0,0,width,height);
+ BitmapData data ;
+
+ 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);
+ }
+
+ m_context->DrawImage(image,(REAL) x,(REAL) y,(REAL) w,(REAL) h) ;
+
+ delete image ;
+ DeleteObject(iconInfo.hbmColor);
+ DeleteObject(iconInfo.hbmMask);
+}
+
+void wxGDIPlusContext::DoDrawFilledText(const wxString& str,
+ wxDouble x, wxDouble y,
+ const wxGraphicsBrush& brush)
+{
+ if (m_composition == wxCOMPOSITION_DEST)
+ return;
+
+ wxCHECK_RET( !m_font.IsNull(),
+ wxT("wxGDIPlusContext::DrawText - no valid font set") );
+
+ if ( str.IsEmpty())
+ return ;
+
+ wxGDIPlusFontData * const
+ fontData = (wxGDIPlusFontData *)m_font.GetRefData();
+ wxGDIPlusBrushData * const
+ brushData = (wxGDIPlusBrushData *)brush.GetRefData();
+
+ m_context->DrawString
+ (
+ str.wc_str(*wxConvUI), // string to draw, always Unicode
+ -1, // length: string is NUL-terminated
+ fontData->GetGDIPlusFont(),
+ PointF(x, y),
+ StringFormat::GenericTypographic(),
+ brushData ? brushData->GetGDIPlusBrush()
+ : 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_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);
+
+ if ( height )
+ *height = rHeight * factorY;
+ if ( descent )
+ *descent = rDescent * factorY;
+ if ( externalLeading )
+ *externalLeading = (rHeight - rAscent - rDescent) * factorY;
+ // measuring empty strings is not guaranteed, so do it by hand
+ if ( str.IsEmpty())
+ {
+ if ( width )
+ *width = 0 ;
+ }
+ else
+ {
+ RectF layoutRect(0,0, 100000.0f, 100000.0f);
+ StringFormat strFormat( StringFormat::GenericTypographic() );
+ strFormat.SetFormatFlags( StringFormatFlagsMeasureTrailingSpaces | strFormat.GetFormatFlags() );
+
+ RectF bounds ;
+ m_context->MeasureString((const wchar_t *) s , wcslen(s) , f, layoutRect, &strFormat, &bounds ) ;
+ if ( width )
+ *width = bounds.Width;
+ if ( height )
+ *height = bounds.Height;
+ }
+}
+
+void wxGDIPlusContext::GetPartialTextExtents(const wxString& text, wxArrayDouble& widths) const
+{
+ widths.Empty();
+ widths.Add(0, text.length());
+
+ wxCHECK_RET( !m_font.IsNull(), wxT("wxGDIPlusContext::GetPartialTextExtents - no valid font set") );
+
+ if (text.empty())
+ return;
+
+ Font* f = ((wxGDIPlusFontData*)m_font.GetRefData())->GetGDIPlusFont();
+ wxWCharBuffer ws = text.wc_str( *wxConvUI );
+ size_t len = wcslen( ws ) ;
+ wxASSERT_MSG(text.length() == len , wxT("GetPartialTextExtents not yet implemented for multichar situations"));
+
+ RectF layoutRect(0,0, 100000.0f, 100000.0f);
+ StringFormat strFormat( StringFormat::GenericTypographic() );
+
+ 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 )
+ {
+ 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);
+ strFormat.SetFormatFlags( StringFormatFlagsMeasureTrailingSpaces | strFormat.GetFormatFlags() );
+ 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;
+ }
+
+ delete[] ranges;
+ delete[] regions;
+}
+
+bool wxGDIPlusContext::ShouldOffset() const
+{
+ if ( !m_enableOffset )
+ return false;
+
+ int penwidth = 0 ;
+ if ( !m_pen.IsNull() )
+ {
+ penwidth = (int)((wxGDIPlusPenData*)m_pen.GetRefData())->GetWidth();
+ if ( penwidth == 0 )
+ penwidth = 1;
+ }
+ return ( penwidth % 2 ) == 1;
+}
+
+void* wxGDIPlusContext::GetNativeContext()
+{
+ return m_context;
+}
+
+// concatenates this transform with the current transform of this context
+void wxGDIPlusContext::ConcatTransform( const wxGraphicsMatrix& matrix )
+{
+ m_context->MultiplyTransform((Matrix*) matrix.GetNativeMatrix());
+}
+
+// sets the transform of this context
+void wxGDIPlusContext::SetTransform( const wxGraphicsMatrix& matrix )
+{
+ m_context->SetTransform((Matrix*) matrix.GetNativeMatrix());
+}
+
+// gets the matrix of this context
+wxGraphicsMatrix wxGDIPlusContext::GetTransform() const
+{
+ wxGraphicsMatrix matrix = CreateMatrix();
+ m_context->GetTransform((Matrix*) matrix.GetNativeMatrix());
+ return matrix;
+}
+
+void wxGDIPlusContext::GetSize( wxDouble* width, wxDouble *height )
+{
+ *width = m_width;
+ *height = m_height;
+}
+
+//-----------------------------------------------------------------------------
+// wxGDIPlusPrintingContext implementation
+//-----------------------------------------------------------------------------
+
+wxGDIPlusPrintingContext::wxGDIPlusPrintingContext( wxGraphicsRenderer* renderer,
+ const wxDC& dc )
+ : wxGDIPlusContext(renderer, dc)
+{
+ Graphics* context = GetGraphics();
+
+ //m_context->SetPageUnit(UnitDocument);
+
+ // 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);
+
+ // 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
+//-----------------------------------------------------------------------------
+
+IMPLEMENT_DYNAMIC_CLASS(wxGDIPlusRenderer,wxGraphicsRenderer)
+
+static wxGDIPlusRenderer gs_GDIPlusRenderer;
+
+wxGraphicsRenderer* wxGraphicsRenderer::GetDefaultRenderer()
+{
+ return &gs_GDIPlusRenderer;
+}
+
+bool wxGDIPlusRenderer::EnsureIsLoaded()
+{
+ // 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;
+ 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)
+{
+ 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)
+{
+ 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()
+{
+ ENSURE_LOADED_OR_RETURN(NULL);
+ return new wxGDIPlusMeasuringContext(this);
+}
+
+wxGraphicsContext * wxGDIPlusRenderer::CreateContextFromNativeContext( void * context )
+{
+ ENSURE_LOADED_OR_RETURN(NULL);
+ return new wxGDIPlusContext(this,(Graphics*) context);
+}
+
+
+wxGraphicsContext * wxGDIPlusRenderer::CreateContextFromNativeWindow( void * window )
+{
+ ENSURE_LOADED_OR_RETURN(NULL);
+ return new wxGDIPlusContext(this,(HWND) window);
+}
+
+wxGraphicsContext * wxGDIPlusRenderer::CreateContext( wxWindow* window )
+{
+ ENSURE_LOADED_OR_RETURN(NULL);
+ return new wxGDIPlusContext(this, (HWND) window->GetHWND() );
+}
+
+// Path
+
+wxGraphicsPath wxGDIPlusRenderer::CreatePath()
+{
+ ENSURE_LOADED_OR_RETURN(wxNullGraphicsPath);
+ wxGraphicsPath m;
+ m.SetRefData( new wxGDIPlusPathData(this));
+ return m;
+}
+
+
+// Matrix
+
+wxGraphicsMatrix wxGDIPlusRenderer::CreateMatrix( wxDouble a, wxDouble b, wxDouble c, wxDouble d,
+ wxDouble tx, wxDouble ty)
+
+{
+ ENSURE_LOADED_OR_RETURN(wxNullGraphicsMatrix);
+ wxGraphicsMatrix m;
+ wxGDIPlusMatrixData* data = new wxGDIPlusMatrixData( this );
+ data->Set( a,b,c,d,tx,ty ) ;
+ m.SetRefData(data);
+ return m;
+}
+
+wxGraphicsPen wxGDIPlusRenderer::CreatePen(const wxPen& pen)
+{
+ ENSURE_LOADED_OR_RETURN(wxNullGraphicsPen);
+ if ( !pen.IsOk() || pen.GetStyle() == wxTRANSPARENT )
+ return wxNullGraphicsPen;
+ else
+ {
+ wxGraphicsPen p;
+ p.SetRefData(new wxGDIPlusPenData( this, pen ));
+ return p;
+ }
+}
+
+wxGraphicsBrush wxGDIPlusRenderer::CreateBrush(const wxBrush& brush )
+{
+ ENSURE_LOADED_OR_RETURN(wxNullGraphicsBrush);
+ if ( !brush.IsOk() || brush.GetStyle() == wxTRANSPARENT )
+ return wxNullGraphicsBrush;
+ else
+ {
+ wxGraphicsBrush p;
+ p.SetRefData(new wxGDIPlusBrushData( this, brush ));
+ return p;
+ }
+}
+
+wxGraphicsBrush
+wxGDIPlusRenderer::CreateLinearGradientBrush(wxDouble x1, wxDouble y1,
+ wxDouble x2, wxDouble y2,
+ const wxGraphicsGradientStops& stops)
+{
+ ENSURE_LOADED_OR_RETURN(wxNullGraphicsBrush);
+ wxGraphicsBrush p;
+ wxGDIPlusBrushData* d = new wxGDIPlusBrushData( this );
+ d->CreateLinearGradientBrush(x1, y1, x2, y2, stops);
+ p.SetRefData(d);
+ return p;
+ }
+
+wxGraphicsBrush
+wxGDIPlusRenderer::CreateRadialGradientBrush(wxDouble xo, wxDouble yo,
+ wxDouble xc, wxDouble yc,
+ wxDouble radius,
+ const wxGraphicsGradientStops& stops)
+{
+ ENSURE_LOADED_OR_RETURN(wxNullGraphicsBrush);
+ wxGraphicsBrush p;
+ wxGDIPlusBrushData* d = new wxGDIPlusBrushData( this );
+ d->CreateRadialGradientBrush(xo,yo,xc,yc,radius,stops);
+ p.SetRefData(d);
+ return p;
+}
+
+wxGraphicsFont
+wxGDIPlusRenderer::CreateFont( const wxFont &font,
+ const wxColour &col )
+{
+ ENSURE_LOADED_OR_RETURN(wxNullGraphicsFont);
+ if ( font.IsOk() )
+ {
+ wxGraphicsFont p;
+ 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 ( font.GetUnderlined() )
+ if ( flags & wxFONTFLAG_UNDERLINED )
style |= FontStyleUnderline;
- if ( font.GetWeight() == wxFONTWEIGHT_BOLD )
+ if ( flags & wxFONTFLAG_BOLD )
style |= FontStyleBold;
- m_font = new Font( s , size , style );
+ 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;
}
-void* wxGDIPlusContext::GetNativeContext()
+
+wxImage wxGDIPlusRenderer::CreateImageFromBitmap(const wxGraphicsBitmap& bmp)
{
- return m_context;
+ ENSURE_LOADED_OR_RETURN(wxNullImage);
+ const wxGDIPlusBitmapData* const
+ data = static_cast<wxGDIPlusBitmapData*>(bmp.GetGraphicsData());
+
+ return data ? data->ConvertToImage() : wxNullImage;
}
-wxGraphicsContext* wxGraphicsContext::Create( const wxWindowDC& dc)
+#endif // wxUSE_IMAGE
+
+
+wxGraphicsBitmap wxGDIPlusRenderer::CreateBitmapFromNativeBitmap( void *bitmap )
{
- return new wxGDIPlusContext( (HDC) dc.GetHDC() );
+ ENSURE_LOADED_OR_RETURN(wxNullGraphicsBitmap);
+ if ( bitmap != NULL )
+ {
+ wxGraphicsBitmap p;
+ p.SetRefData(new wxGDIPlusBitmapData( this , (Bitmap*) bitmap ));
+ return p;
+ }
+ else
+ return wxNullGraphicsBitmap;
}
-wxGraphicsContext* wxGraphicsContext::Create( wxWindow * window )
+wxGraphicsBitmap wxGDIPlusRenderer::CreateSubBitmap( const wxGraphicsBitmap &bitmap, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
{
- return new wxGDIPlusContext( (HWND) window->GetHWND() );
+ 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;
}
-wxGraphicsContext* wxGraphicsContext::CreateFromNative( void * context )
+// Shutdown GDI+ at app exit, before possible dll unload
+class wxGDIPlusRendererModule : public wxModule
{
- return new wxGDIPlusContext( (Graphics*) context );
+public:
+ virtual bool OnInit() { return true; }
+ virtual void OnExit() { 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
projects / wxWidgets.git / blobdiff