remove unused variable assignment, closes #14928

[wxWidgets.git] / include / wx / dcgraph.h

diff --git a/include/wx/dcgraph.h b/include/wx/dcgraph.h
index 7ac6f8b47eb1f2dcfe47c948a9438a3c5eeb2299..d010b63ae405804ebf4c11102a3f0aa1ada049cf 100644 (file)
--- a/include/wx/dcgraph.h
+++ b/include/wx/dcgraph.h
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        wx/graphdc.h
+// Name:        wx/dcgraph.h
 // Purpose:     graphics context device bridge header
 // Author:      Stefan Csomor
 // Modified by:
@@ -14,36 +14,59 @@
 
 #if wxUSE_GRAPHICS_CONTEXT
 
+#include "wx/dc.h"
 #include "wx/geometry.h"
-#include "wx/dynarray.h"
 #include "wx/graphics.h"
 
 class WXDLLIMPEXP_FWD_CORE wxWindowDC;
 
-#ifdef __WXMAC__
-#define wxGCDC wxDC
-#endif
 
-class WXDLLEXPORT wxGCDC: 
-#ifdef __WXMAC__
-    public wxDCBase
-#else
-    public wxDC
-#endif
+class WXDLLIMPEXP_CORE wxGCDC: public wxDC
 {
-    DECLARE_DYNAMIC_CLASS(wxGCDC)
-    DECLARE_NO_COPY_CLASS(wxGCDC)
-
 public:
-    wxGCDC(const wxWindowDC& dc);
-#ifdef __WXMSW__
-    wxGCDC( const wxMemoryDC& dc);
-#endif    
+    wxGCDC( const wxWindowDC& dc );
+    wxGCDC( const wxMemoryDC& dc );
+#if wxUSE_PRINTING_ARCHITECTURE
+    wxGCDC( const wxPrinterDC& dc );
+#endif
+#if defined(__WXMSW__) && wxUSE_ENH_METAFILE
+    wxGCDC( const wxEnhMetaFileDC& dc );
+#endif
+    wxGCDC(wxGraphicsContext* context);
+    
     wxGCDC();
     virtual ~wxGCDC();
 
-    void Init();
+    wxGraphicsContext* GetGraphicsContext() const;
+    void SetGraphicsContext( wxGraphicsContext* ctx );
 
+#ifdef __WXMSW__
+    // override wxDC virtual functions to provide access to HDC associated with
+    // this Graphics object (implemented in src/msw/graphics.cpp)
+    virtual WXHDC AcquireHDC();
+    virtual void ReleaseHDC(WXHDC hdc);
+#endif // __WXMSW__
+
+private:
+    DECLARE_DYNAMIC_CLASS(wxGCDC)
+    wxDECLARE_NO_COPY_CLASS(wxGCDC);
+};
+
+
+class WXDLLIMPEXP_CORE wxGCDCImpl: public wxDCImpl
+{
+public:
+    wxGCDCImpl( wxDC *owner, const wxWindowDC& dc );
+    wxGCDCImpl( wxDC *owner, const wxMemoryDC& dc );
+#if wxUSE_PRINTING_ARCHITECTURE
+    wxGCDCImpl( wxDC *owner, const wxPrinterDC& dc );
+#endif
+#if defined(__WXMSW__) && wxUSE_ENH_METAFILE
+    wxGCDCImpl( wxDC *owner, const wxEnhMetaFileDC& dc );
+#endif
+    wxGCDCImpl( wxDC *owner );
+
+    virtual ~wxGCDCImpl();
 
     // implement base class pure virtuals
     // ----------------------------------
@@ -55,7 +78,7 @@ public:
 
     virtual void StartPage();
     virtual void EndPage();
-    
+
     // flushing the content of this dc immediately onto screen
     virtual void Flush();
 
@@ -76,27 +99,21 @@ public:
     virtual int GetDepth() const;
     virtual wxSize GetPPI() const;
 
-    virtual void SetMapMode(int mode);
-    virtual void SetUserScale(double x, double y);
-
-    virtual void SetLogicalScale(double x, double y);
-    virtual void SetLogicalOrigin(wxCoord x, wxCoord y);
-    virtual void SetDeviceOrigin(wxCoord x, wxCoord y);
-    virtual void SetAxisOrientation(bool xLeftRight, bool yBottomUp);
-    virtual void SetLogicalFunction(int function);
+    virtual void SetLogicalFunction(wxRasterOperationMode function);
 
     virtual void SetTextForeground(const wxColour& colour);
     virtual void SetTextBackground(const wxColour& colour);
 
     virtual void ComputeScaleAndOrigin();
 
-    wxGraphicsContext* GetGraphicsContext() { return m_graphicContext; }
+    wxGraphicsContext* GetGraphicsContext() const { return m_graphicContext; }
     virtual void SetGraphicsContext( wxGraphicsContext* ctx );
-    
-protected:
+
+    virtual void* GetHandle() const;
+
     // the true implementations
     virtual bool DoFloodFill(wxCoord x, wxCoord y, const wxColour& col,
-        int style = wxFLOOD_SURFACE);
+                             wxFloodFillStyle style = wxFLOOD_SURFACE);
 
     virtual void DoGradientFillLinear(const wxRect& rect,
         const wxColour& initialColour,
@@ -145,15 +162,16 @@ protected:
         double angle);
 
     virtual bool DoBlit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
-        wxDC *source, wxCoord xsrc, wxCoord ysrc,
-        int rop = wxCOPY, bool useMask = false, wxCoord xsrcMask = -1, wxCoord ysrcMask = -1);
+                        wxDC *source, wxCoord xsrc, wxCoord ysrc,
+                        wxRasterOperationMode rop = wxCOPY, bool useMask = false,
+                        wxCoord xsrcMask = -1, wxCoord ysrcMask = -1);
 
     virtual bool DoStretchBlit(wxCoord xdest, wxCoord ydest,
                                wxCoord dstWidth, wxCoord dstHeight,
                                wxDC *source,
                                wxCoord xsrc, wxCoord ysrc,
                                wxCoord srcWidth, wxCoord srcHeight,
-                               int rop = wxCOPY, bool useMask = false,
+                               wxRasterOperationMode = wxCOPY, bool useMask = false,
                                wxCoord xsrcMask = wxDefaultCoord, wxCoord ysrcMask = wxDefaultCoord);
 
     virtual void DoGetSize(int *,int *) const;
@@ -162,13 +180,13 @@ protected:
     virtual void DoDrawLines(int n, wxPoint points[],
         wxCoord xoffset, wxCoord yoffset);
     virtual void DoDrawPolygon(int n, wxPoint points[],
-        wxCoord xoffset, wxCoord yoffset,
-        int fillStyle = wxODDEVEN_RULE);
+                               wxCoord xoffset, wxCoord yoffset,
+                               wxPolygonFillMode fillStyle = wxODDEVEN_RULE);
     virtual void DoDrawPolyPolygon(int n, int count[], wxPoint points[],
-        wxCoord xoffset, wxCoord yoffset,
-        int fillStyle);
+                                   wxCoord xoffset, wxCoord yoffset,
+                                   wxPolygonFillMode fillStyle);
 
-    virtual void DoSetClippingRegionAsRegion(const wxRegion& region);
+    virtual void DoSetDeviceClippingRegion(const wxRegion& region);
     virtual void DoSetClippingRegion(wxCoord x, wxCoord y,
         wxCoord width, wxCoord height);
 
@@ -180,18 +198,30 @@ protected:
 
     virtual bool DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) const;
 
+#ifdef __WXMSW__
+    virtual wxRect MSWApplyGDIPlusTransform(const wxRect& r) const;
+#endif // __WXMSW__
+
 protected:
+    // unused int parameter distinguishes this version, which does not create a
+    // wxGraphicsContext, in the expectation that the derived class will do it
+    wxGCDCImpl(wxDC* owner, int);
+
     // scaling variables
     bool m_logicalFunctionSupported;
-    double       m_mm_to_pix_x, m_mm_to_pix_y;
     wxGraphicsMatrix m_matrixOriginal;
     wxGraphicsMatrix m_matrixCurrent;
 
     double m_formerScaleX, m_formerScaleY;
 
     wxGraphicsContext* m_graphicContext;
-};
 
-#endif
+private:
+    void Init(wxGraphicsContext*);
+
+    DECLARE_CLASS(wxGCDCImpl)
+    wxDECLARE_NO_COPY_CLASS(wxGCDCImpl);
+};
 
+#endif // wxUSE_GRAPHICS_CONTEXT
 #endif // _WX_GRAPHICS_DC_H_