canvas/source/cairo/cairo_devicehelper.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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  19
  20 #ifndef INCLUDED_CANVAS_SOURCE_CAIRO_CAIRO_DEVICEHELPER_HXX
  21 #define INCLUDED_CANVAS_SOURCE_CAIRO_CAIRO_DEVICEHELPER_HXX
  22
  23 #include <com/sun/star/awt/Rectangle.hpp>
  24 #include <com/sun/star/rendering/XGraphicDevice.hpp>
  25 #include <com/sun/star/rendering/XBufferController.hpp>
  26
  27 #include <boost/utility.hpp>
  28
  29 #include <vcl/window.hxx>
  30 #include <vcl/bitmap.hxx>
  31
  32 #include "cairo_surfaceprovider.hxx"
  33
  34 /* Definition of DeviceHelper class */
  35
  36 namespace cairocanvas
  37 {
  38     class DeviceHelper : private ::boost::noncopyable
  39     {
  40     public:
  41         DeviceHelper();
  42
  43         /** init helper
  44
  45             @param rCanvas
  46             Owning canvas.
  47
  48             @param rRefDevice
  49             Reference output device. Needed for resolution
  50             calculations etc.
  51          */
  52         void init( SurfaceProvider& rSurfaceProvider,
  53                    OutputDevice&    rRefDevice );
  54
  55         /// Dispose all internal references
  56         void disposing();
  57
  58         // XWindowGraphicDevice
  59         ::com::sun::star::geometry::RealSize2D getPhysicalResolution();
  60         ::com::sun::star::geometry::RealSize2D getPhysicalSize();
  61         ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XLinePolyPolygon2D > createCompatibleLinePolyPolygon(
  62             const ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XGraphicDevice >&                               rDevice,
  63             const ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Sequence< ::com::sun::star::geometry::RealPoint2D > >& points );
  64         ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XBezierPolyPolygon2D > createCompatibleBezierPolyPolygon(
  65             const ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XGraphicDevice >&                                       rDevice,
  66             const ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Sequence< ::com::sun::star::geometry::RealBezierSegment2D > >& points );
  67         ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XBitmap > createCompatibleBitmap(
  68             const ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XGraphicDevice >&  rDevice,
  69             const ::com::sun::star::geometry::IntegerSize2D&                                        size );
  70         ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XVolatileBitmap > createVolatileBitmap(
  71             const ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XGraphicDevice >&  rDevice,
  72             const ::com::sun::star::geometry::IntegerSize2D&                                        size );
  73         ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XBitmap > createCompatibleAlphaBitmap(
  74             const ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XGraphicDevice >&  rDevice,
  75             const ::com::sun::star::geometry::IntegerSize2D&                                        size );
  76         ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XVolatileBitmap > createVolatileAlphaBitmap(
  77             const ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XGraphicDevice >&  rDevice,
  78             const ::com::sun::star::geometry::IntegerSize2D&                                        size );
  79
  80         ::com::sun::star::uno::Any isAccelerated() const;
  81         ::com::sun::star::uno::Any getDeviceHandle() const;
  82         ::com::sun::star::uno::Any getSurfaceHandle() const;
  83         ::com::sun::star::uno::Reference<
  84             ::com::sun::star::rendering::XColorSpace > getColorSpace() const;
  85
  86         /** called when DumpScreenContent property is enabled on
  87             XGraphicDevice, and writes out bitmaps of current screen.
  88          */
  89         void dumpScreenContent() const;
  90
  91         OutputDevice* getOutputDevice() const { return mpRefDevice; }
  92         ::cairo::SurfaceSharedPtr getSurface() { return mpSurface; }
  93         ::cairo::SurfaceSharedPtr createSurface( const ::basegfx::B2ISize& rSize, int aContent = CAIRO_CONTENT_COLOR_ALPHA );
  94         ::cairo::SurfaceSharedPtr createSurface( BitmapSystemData& rData, const Size& rSize );
  95
  96     protected:
  97         /** init helper
  98
  99             @param rCanvas
 100             Owning canvas.
 101
 102             @param rRefDevice
 103             Reference output device. Needed for resolution
 104             calculations etc.
 105          */
 106         void implInit( SurfaceProvider& rSurfaceProvider,
 107                        OutputDevice&    rRefDevice );
 108         void setSize( const ::basegfx::B2ISize& rSize );
 109
 110     private:
 111         /** Surface provider
 112
 113             Deliberately not a refcounted reference, because of
 114             potential circular references for canvas. Provides us with
 115             our output surface and associated functionality.
 116          */
 117         SurfaceProvider*          mpSurfaceProvider;
 118
 119         VclPtr<OutputDevice>      mpRefDevice;
 120         ::cairo::SurfaceSharedPtr mpSurface;
 121     };
 122 }
 123
 124 #endif
 125
 126 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */