LibreOffice Module canvas (master)  1
dx_surfacebitmap.hxx
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19 
20 #pragma once
21 
24 #include "dx_ibitmap.hxx"
25 #include "dx_canvasfont.hxx"
26 #include "dx_gdiplususer.hxx"
27 #include "dx_rendermodule.hxx"
28 
29 namespace dxcanvas
30 {
31  class DXSurfaceBitmap : public IBitmap
32  {
33  public:
34  DXSurfaceBitmap( const ::basegfx::B2IVector& rSize,
35  const std::shared_ptr<canvas::ISurfaceProxyManager>& rMgr,
36  const IDXRenderModuleSharedPtr& rRenderModule,
37  bool bWithAlpha );
38 
39  bool resize( const ::basegfx::B2IVector& rSize );
40  void clear();
41 
42  virtual GraphicsSharedPtr getGraphics() override;
43 
44  virtual BitmapSharedPtr getBitmap() const override;
45  virtual ::basegfx::B2IVector getSize() const override;
46  virtual bool hasAlpha() const override;
47 
49 
50  bool draw( double fAlpha,
51  const ::basegfx::B2DPoint& rPos,
52  const ::basegfx::B2DHomMatrix& rTransform );
53 
54  bool draw( const ::basegfx::B2IRange& rArea );
55 
56  bool draw( double fAlpha,
57  const ::basegfx::B2DPoint& rPos,
58  const ::basegfx::B2DRange& rArea,
59  const ::basegfx::B2DHomMatrix& rTransform );
60 
61  bool draw( double fAlpha,
62  const ::basegfx::B2DPoint& rPos,
63  const ::basegfx::B2DPolyPolygon& rClipPoly,
64  const ::basegfx::B2DHomMatrix& rTransform );
65 
66  virtual css::uno::Sequence< sal_Int8 > getData(
67  css::rendering::IntegerBitmapLayout& bitmapLayout,
68  const css::geometry::IntegerRectangle2D& rect ) override;
69 
70  virtual void setData(
71  const css::uno::Sequence< sal_Int8 >& data,
72  const css::rendering::IntegerBitmapLayout& bitmapLayout,
73  const css::geometry::IntegerRectangle2D& rect ) override;
74 
75  virtual void setPixel(
76  const css::uno::Sequence< sal_Int8 >& color,
77  const css::rendering::IntegerBitmapLayout& bitmapLayout,
78  const css::geometry::IntegerPoint2D& pos ) override;
79 
80  virtual css::uno::Sequence< sal_Int8 > getPixel(
81  css::rendering::IntegerBitmapLayout& bitmapLayout,
82  const css::geometry::IntegerPoint2D& pos ) override;
83 
84  private:
85  void init();
86 
87  // Refcounted global GDI+ state container
89 
90  // size of this image in pixels [integral unit]
92 
93  // pointer to the rendermodule, needed to create surfaces
94  // which are used as container for the actual pixel data.
95  // generally we could use any kind of storage, but GDI+
96  // is not willing to render antialiased fonts unless we
97  // use this special kind of container, don't ask me why...
99 
100  // pointer to the surface manager, needed in case clients
101  // want to resize the bitmap.
102  std::shared_ptr<canvas::ISurfaceProxyManager> mpSurfaceManager;
103 
104  // access point to the surface proxy which handles
105  // the hardware-dependent rendering stuff.
106  std::shared_ptr< canvas::ISurfaceProxy > mpSurfaceProxy;
107 
108  // container for pixel data, we need to use a directx
109  // surface since GDI+ sucks...
111 
112  // since GDI+ does not work correctly in case we
113  // run on a 16bit display [don't ask me why] we need
114  // to occasionally render to a native GDI+ bitmap.
116  // Graphics for the mpGDIPlusBitmap
118 
119  // internal implementation of the iColorBuffer interface
120  std::shared_ptr<canvas::IColorBuffer> mpColorBuffer;
121 
122  // indicates whether the associated surface needs
123  // to refresh its contents or not. in other words,
124  // this flag is set iff both representations are
125  // out of sync.
126  mutable bool mbIsSurfaceDirty;
127 
128  // true if the bitmap contains an alpha channel
129  bool mbAlpha;
130  };
131 
132  typedef std::shared_ptr< DXSurfaceBitmap > DXSurfaceBitmapSharedPtr;
133 }
134 
135 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
virtual css::uno::Sequence< sal_Int8 > getData(css::rendering::IntegerBitmapLayout &bitmapLayout, const css::geometry::IntegerRectangle2D &rect) override
std::shared_ptr< IDXRenderModule > IDXRenderModuleSharedPtr
IDXRenderModuleSharedPtr mpRenderModule
virtual ::basegfx::B2IVector getSize() const override
virtual void setData(const css::uno::Sequence< sal_Int8 > &data, const css::rendering::IntegerBitmapLayout &bitmapLayout, const css::geometry::IntegerRectangle2D &rect) override
virtual css::uno::Sequence< sal_Int8 > getPixel(css::rendering::IntegerBitmapLayout &bitmapLayout, const css::geometry::IntegerPoint2D &pos) override
::basegfx::B2IVector maSize
bool draw(double fAlpha, const ::basegfx::B2DPoint &rPos, const ::basegfx::B2DHomMatrix &rTransform)
virtual BitmapSharedPtr getBitmap() const override
std::shared_ptr< DXSurfaceBitmap > DXSurfaceBitmapSharedPtr
virtual void setPixel(const css::uno::Sequence< sal_Int8 > &color, const css::rendering::IntegerBitmapLayout &bitmapLayout, const css::geometry::IntegerPoint2D &pos) override
std::shared_ptr< Gdiplus::Bitmap > BitmapSharedPtr
Definition: dx_winstuff.hxx:62
virtual bool hasAlpha() const override
bool resize(const ::basegfx::B2IVector &rSize)
DXSurfaceBitmap(const ::basegfx::B2IVector &rSize, const std::shared_ptr< canvas::ISurfaceProxyManager > &rMgr, const IDXRenderModuleSharedPtr &rRenderModule, bool bWithAlpha)
GDIPlusUser::GDIPlusUserSharedPtr GDIPlusUserSharedPtr
GDIPlusUserSharedPtr mpGdiPlusUser
COMReference< surface_type > mpSurface
std::shared_ptr< canvas::ISurfaceProxyManager > mpSurfaceManager
virtual GraphicsSharedPtr getGraphics() override
COMReference< surface_type > getSurface() const
Interface for internal canvas bitmap objects.
Definition: dx_ibitmap.hxx:33
std::shared_ptr< Gdiplus::Graphics > GraphicsSharedPtr
Definition: dx_winstuff.hxx:60
std::shared_ptr< canvas::ISurfaceProxy > mpSurfaceProxy
std::shared_ptr< canvas::IColorBuffer > mpColorBuffer