canvas/source/vcl/backbuffer.hxx

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   9  * This file incorporates work covered by the following license notice:
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  15  *   License, Version 2.0 (the "License"); you may not use this file
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  18  */
  19
  20 #ifndef INCLUDED_CANVAS_SOURCE_VCL_BACKBUFFER_HXX
  21 #define INCLUDED_CANVAS_SOURCE_VCL_BACKBUFFER_HXX
  22
  23 #include <vcl/virdev.hxx>
  24
  25 #include <canvas/vclwrapper.hxx>
  26 #include "outdevprovider.hxx"
  27
  28 #include <boost/shared_ptr.hpp>
  29
  30
  31 namespace vclcanvas
  32 {
  33     /// Background buffer abstraction
  34     class BackBuffer : public OutDevProvider
  35     {
  36     public:
  37         /** Create a backbuffer for given reference device
  38
  39             @param bMonochromeBuffer
  40             When false, default depth of reference device is
  41             chosen. When true, the buffer will be monochrome, i.e. one
  42             bit deep.
  43          */
  44         BackBuffer( const OutputDevice& rRefDevice,
  45                     bool                bMonochromeBuffer=false );
  46         virtual ~BackBuffer();
  47
  48         virtual OutputDevice&       getOutDev() SAL_OVERRIDE;
  49         virtual const OutputDevice& getOutDev() const SAL_OVERRIDE;
  50
  51         void setSize( const ::Size& rNewSize );
  52
  53     private:
  54         VclPtr< VirtualDevice > maVDev;
  55     };
  56
  57     typedef ::boost::shared_ptr< BackBuffer > BackBufferSharedPtr;
  58 }
  59
  60 #endif // INCLUDED_CANVAS_SOURCE_VCL_BACKBUFFER_HXX
  61
  62 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */