ae20edb539
Under wxQT, wxMemoryDC was previously rendering to a temporary image which was only being blitted back to the original wxBitmap when either the DC wx destroyed or a new bitmap was selected (via SelectObject). With these change wxMemoryDCImpl now draws directly to the bitmap managed by wxBitmap, this makes the behaviour more consistent with the MSW and GTK implementations. Closes https://github.com/wxWidgets/wxWidgets/pull/1083
136 lines
4.7 KiB
C++
136 lines
4.7 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: wx/qt/dc.h
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// Author: Peter Most, Javier Torres, Mariano Reingart
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// Copyright: (c) 2010 wxWidgets dev team
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_QT_DC_H_
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#define _WX_QT_DC_H_
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class QPainter;
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class QImage;
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class WXDLLIMPEXP_FWD_CORE wxRegion;
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class WXDLLIMPEXP_CORE wxQtDCImpl : public wxDCImpl
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{
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public:
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wxQtDCImpl( wxDC *owner );
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~wxQtDCImpl();
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virtual bool CanDrawBitmap() const;
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virtual bool CanGetTextExtent() const;
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virtual void DoGetSize(int *width, int *height) const;
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virtual void DoGetSizeMM(int* width, int* height) const;
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virtual int GetDepth() const;
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virtual wxSize GetPPI() const;
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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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#if wxUSE_PALETTE
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virtual void SetPalette(const wxPalette& palette);
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#endif // wxUSE_PALETTE
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virtual void SetLogicalFunction(wxRasterOperationMode function);
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virtual wxCoord GetCharHeight() const;
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virtual wxCoord GetCharWidth() const;
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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 void Clear();
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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 DoSetDeviceClippingRegion(const wxRegion& region);
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virtual void DestroyClippingRegion();
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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 bool DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const;
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virtual void DoDrawPoint(wxCoord x, wxCoord y);
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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 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,
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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,
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wxCoord x, wxCoord y, double angle);
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virtual bool DoBlit(wxCoord xdest, wxCoord ydest,
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wxCoord width, wxCoord height,
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wxDC *source,
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wxCoord xsrc, wxCoord ysrc,
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wxRasterOperationMode rop = wxCOPY,
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bool useMask = false,
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wxCoord xsrcMask = wxDefaultCoord,
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wxCoord ysrcMask = wxDefaultCoord);
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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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// Use Qt transformations, as they automatically scale pen widths, text...
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virtual void ComputeScaleAndOrigin();
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void QtPreparePainter();
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virtual void* GetHandle() const { return (void*) m_qtPainter; }
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protected:
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virtual QPixmap *GetQPixmap() { return m_qtPixmap; }
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QPainter *m_qtPainter;
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QPixmap *m_qtPixmap;
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wxRegion *m_clippingRegion;
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private:
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enum wxQtRasterColourOp
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{
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wxQtNONE,
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wxQtWHITE,
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wxQtBLACK,
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wxQtINVERT
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};
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wxQtRasterColourOp m_rasterColourOp;
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QColor *m_qtPenColor;
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QColor *m_qtBrushColor;
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void ApplyRasterColourOp();
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};
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#endif // _WX_QT_DC_H_
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