mirror of
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226 lines
7.4 KiB
C++
226 lines
7.4 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: wx/dcgraph.h
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// Purpose: graphics context device bridge header
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// Author: Stefan Csomor
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// Modified by:
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// Created:
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// Copyright: (c) Stefan Csomor
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_GRAPHICS_DC_H_
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#define _WX_GRAPHICS_DC_H_
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#if wxUSE_GRAPHICS_CONTEXT
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#include "wx/dc.h"
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#include "wx/geometry.h"
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#include "wx/graphics.h"
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class WXDLLIMPEXP_FWD_CORE wxWindowDC;
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class WXDLLIMPEXP_CORE wxGCDC: public wxDC
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{
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public:
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wxGCDC( const wxWindowDC& dc );
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wxGCDC( const wxMemoryDC& dc );
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#if wxUSE_PRINTING_ARCHITECTURE
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wxGCDC( const wxPrinterDC& dc );
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#endif
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#if defined(__WXMSW__) && wxUSE_ENH_METAFILE
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wxGCDC( const wxEnhMetaFileDC& dc );
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#endif
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wxGCDC(wxGraphicsContext* context);
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wxGCDC();
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virtual ~wxGCDC();
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wxGraphicsContext* GetGraphicsContext() const;
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void SetGraphicsContext( wxGraphicsContext* ctx );
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#ifdef __WXMSW__
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// override wxDC virtual functions to provide access to HDC associated with
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// this Graphics object (implemented in src/msw/graphics.cpp)
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virtual WXHDC AcquireHDC();
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virtual void ReleaseHDC(WXHDC hdc);
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#endif // __WXMSW__
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private:
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DECLARE_DYNAMIC_CLASS(wxGCDC)
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wxDECLARE_NO_COPY_CLASS(wxGCDC);
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};
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class WXDLLIMPEXP_CORE wxGCDCImpl: public wxDCImpl
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{
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public:
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wxGCDCImpl( wxDC *owner, const wxWindowDC& dc );
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wxGCDCImpl( wxDC *owner, const wxMemoryDC& dc );
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#if wxUSE_PRINTING_ARCHITECTURE
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wxGCDCImpl( wxDC *owner, const wxPrinterDC& dc );
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#endif
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#if defined(__WXMSW__) && wxUSE_ENH_METAFILE
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wxGCDCImpl( wxDC *owner, const wxEnhMetaFileDC& dc );
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#endif
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wxGCDCImpl( wxDC *owner );
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virtual ~wxGCDCImpl();
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// implement base class pure virtuals
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// ----------------------------------
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virtual void Clear();
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virtual bool StartDoc( const wxString& message );
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virtual void EndDoc();
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virtual void StartPage();
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virtual void EndPage();
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// flushing the content of this dc immediately onto screen
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virtual void Flush();
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virtual void SetFont(const wxFont& font);
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virtual void SetPen(const wxPen& pen);
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virtual void SetBrush(const wxBrush& brush);
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virtual void SetBackground(const wxBrush& brush);
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virtual void SetBackgroundMode(int mode);
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virtual void SetPalette(const wxPalette& palette);
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virtual void DestroyClippingRegion();
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virtual wxCoord GetCharHeight() const;
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virtual wxCoord GetCharWidth() const;
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virtual bool CanDrawBitmap() const;
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virtual bool CanGetTextExtent() const;
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virtual int GetDepth() const;
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virtual wxSize GetPPI() const;
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virtual void SetLogicalFunction(wxRasterOperationMode function);
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virtual void SetTextForeground(const wxColour& colour);
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virtual void SetTextBackground(const wxColour& colour);
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virtual void ComputeScaleAndOrigin();
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wxGraphicsContext* GetGraphicsContext() const { return m_graphicContext; }
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virtual void SetGraphicsContext( wxGraphicsContext* ctx );
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virtual void* GetHandle() const;
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// the true implementations
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virtual bool DoFloodFill(wxCoord x, wxCoord y, const wxColour& col,
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wxFloodFillStyle style = wxFLOOD_SURFACE);
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virtual void DoGradientFillLinear(const wxRect& rect,
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const wxColour& initialColour,
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const wxColour& destColour,
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wxDirection nDirection = wxEAST);
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virtual void DoGradientFillConcentric(const wxRect& rect,
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const wxColour& initialColour,
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const wxColour& destColour,
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const wxPoint& circleCenter);
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virtual bool DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const;
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virtual void DoDrawPoint(wxCoord x, wxCoord y);
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#if wxUSE_SPLINES
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virtual void DoDrawSpline(const wxPointList *points);
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#endif
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virtual void DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2);
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virtual void DoDrawArc(wxCoord x1, wxCoord y1,
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wxCoord x2, wxCoord y2,
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wxCoord xc, wxCoord yc);
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virtual void DoDrawCheckMark(wxCoord x, wxCoord y,
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wxCoord width, wxCoord height);
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virtual void DoDrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h,
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double sa, double ea);
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virtual void DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
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virtual void DoDrawRoundedRectangle(wxCoord x, wxCoord y,
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wxCoord width, wxCoord height,
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double radius);
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virtual void DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
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virtual void DoCrossHair(wxCoord x, wxCoord y);
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virtual void DoDrawIcon(const wxIcon& icon, wxCoord x, wxCoord y);
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virtual void DoDrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y,
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bool useMask = false);
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virtual void DoDrawText(const wxString& text, wxCoord x, wxCoord y);
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virtual void DoDrawRotatedText(const wxString& text, wxCoord x, wxCoord y,
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double angle);
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virtual bool DoBlit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
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wxDC *source, wxCoord xsrc, wxCoord ysrc,
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wxRasterOperationMode rop = wxCOPY, bool useMask = false,
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wxCoord xsrcMask = -1, wxCoord ysrcMask = -1);
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virtual bool DoStretchBlit(wxCoord xdest, wxCoord ydest,
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wxCoord dstWidth, wxCoord dstHeight,
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wxDC *source,
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wxCoord xsrc, wxCoord ysrc,
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wxCoord srcWidth, wxCoord srcHeight,
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wxRasterOperationMode = wxCOPY, bool useMask = false,
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wxCoord xsrcMask = wxDefaultCoord, wxCoord ysrcMask = wxDefaultCoord);
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virtual void DoGetSize(int *,int *) const;
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virtual void DoGetSizeMM(int* width, int* height) const;
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virtual void DoDrawLines(int n, const wxPoint points[],
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wxCoord xoffset, wxCoord yoffset);
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virtual void DoDrawPolygon(int n, const wxPoint points[],
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wxCoord xoffset, wxCoord yoffset,
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wxPolygonFillMode fillStyle = wxODDEVEN_RULE);
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virtual void DoDrawPolyPolygon(int n, const int count[], const wxPoint points[],
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wxCoord xoffset, wxCoord yoffset,
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wxPolygonFillMode fillStyle);
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virtual void DoSetDeviceClippingRegion(const wxRegion& region);
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virtual void DoSetClippingRegion(wxCoord x, wxCoord y,
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wxCoord width, wxCoord height);
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virtual void DoGetTextExtent(const wxString& string,
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wxCoord *x, wxCoord *y,
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wxCoord *descent = NULL,
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wxCoord *externalLeading = NULL,
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const wxFont *theFont = NULL) const;
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virtual bool DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) const;
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#ifdef __WXMSW__
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virtual wxRect MSWApplyGDIPlusTransform(const wxRect& r) const;
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#endif // __WXMSW__
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protected:
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// unused int parameter distinguishes this version, which does not create a
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// wxGraphicsContext, in the expectation that the derived class will do it
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wxGCDCImpl(wxDC* owner, int);
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// scaling variables
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bool m_logicalFunctionSupported;
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wxGraphicsMatrix m_matrixOriginal;
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wxGraphicsMatrix m_matrixCurrent;
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double m_formerScaleX, m_formerScaleY;
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wxGraphicsContext* m_graphicContext;
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private:
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void Init(wxGraphicsContext*);
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DECLARE_CLASS(wxGCDCImpl)
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wxDECLARE_NO_COPY_CLASS(wxGCDCImpl);
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};
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#endif // wxUSE_GRAPHICS_CONTEXT
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#endif // _WX_GRAPHICS_DC_H_
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