canvas/source/cairo/cairo_devicehelper.hxx

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  30
  31 #ifndef _CAIROCANVAS_DEVICEHELPER_HXX
  32 #define _CAIROCANVAS_DEVICEHELPER_HXX
  33
  34 #include <com/sun/star/awt/Rectangle.hpp>
  35 #include <com/sun/star/rendering/XGraphicDevice.hpp>
  36 #include <com/sun/star/rendering/XBufferController.hpp>
  37
  38 #include <boost/utility.hpp>
  39
  40 #include <vcl/window.hxx>
  41 #include <vcl/bitmap.hxx>
  42
  43 #include "cairo_cairo.hxx"
  44 #include "cairo_surfaceprovider.hxx"
  45
  46 /* Definition of DeviceHelper class */
  47
  48 struct SystemEnvData;
  49 class Window;
  50
  51 namespace cairocanvas
  52 {
  53     class Canvas;
  54     class CanvasHelper;
  55
  56     class DeviceHelper : private ::boost::noncopyable
  57     {
  58     public:
  59         DeviceHelper();
  60
  61         /** init helper
  62
  63             @param rCanvas
  64             Owning canvas.
  65
  66             @param rRefDevice
  67             Reference output device. Needed for resolution
  68             calculations etc.
  69          */
  70         void init( SurfaceProvider& rSurfaceProvider,
  71                    OutputDevice&    rRefDevice );
  72
  73         /// Dispose all internal references
  74         void disposing();
  75
  76         // XWindowGraphicDevice
  77         ::com::sun::star::geometry::RealSize2D getPhysicalResolution();
  78         ::com::sun::star::geometry::RealSize2D getPhysicalSize();
  79         ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XLinePolyPolygon2D > createCompatibleLinePolyPolygon(
  80             const ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XGraphicDevice >&                                                               rDevice,
  81             const ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Sequence< ::com::sun::star::geometry::RealPoint2D > >& points );
  82         ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XBezierPolyPolygon2D > createCompatibleBezierPolyPolygon(
  83             const ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XGraphicDevice >&                                                                               rDevice,
  84             const ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Sequence< ::com::sun::star::geometry::RealBezierSegment2D > >& points );
  85         ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XBitmap > createCompatibleBitmap(
  86             const ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XGraphicDevice >&      rDevice,
  87             const ::com::sun::star::geometry::IntegerSize2D&                                                                            size );
  88         ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XVolatileBitmap > createVolatileBitmap(
  89             const ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XGraphicDevice >&      rDevice,
  90             const ::com::sun::star::geometry::IntegerSize2D&                                                                            size );
  91         ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XBitmap > createCompatibleAlphaBitmap(
  92             const ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XGraphicDevice >&      rDevice,
  93             const ::com::sun::star::geometry::IntegerSize2D&                                                                            size );
  94         ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XVolatileBitmap > createVolatileAlphaBitmap(
  95             const ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XGraphicDevice >&      rDevice,
  96             const ::com::sun::star::geometry::IntegerSize2D&                                                                            size );
  97         sal_Bool hasFullScreenMode(  );
  98         sal_Bool enterFullScreenMode( sal_Bool bEnter );
  99
 100         ::com::sun::star::uno::Any isAccelerated() const;
 101         ::com::sun::star::uno::Any getDeviceHandle() const;
 102         ::com::sun::star::uno::Any getSurfaceHandle() const;
 103         ::com::sun::star::uno::Reference<
 104             ::com::sun::star::rendering::XColorSpace > getColorSpace() const;
 105
 106         /** called when DumpScreenContent property is enabled on
 107             XGraphicDevice, and writes out bitmaps of current screen.
 108          */
 109         void dumpScreenContent() const;
 110
 111         OutputDevice* getOutputDevice() const { return mpRefDevice; }
 112         const void* getSysData() { return mpSysData; }
 113         ::cairo::SurfaceSharedPtr getSurface();
 114         ::cairo::SurfaceSharedPtr createSurface( const ::basegfx::B2ISize& rSize, ::cairo::Content aContent = CAIRO_CONTENT_COLOR_ALPHA );
 115         ::cairo::SurfaceSharedPtr createSurface( BitmapSystemData& rData, const Size& rSize );
 116
 117     protected:
 118         /** init helper
 119
 120             @param rCanvas
 121             Owning canvas.
 122
 123             @param rRefDevice
 124             Reference output device. Needed for resolution
 125             calculations etc.
 126          */
 127         void implInit( SurfaceProvider& rSurfaceProvider,
 128                        OutputDevice&    rRefDevice );
 129         void setSize( const ::basegfx::B2ISize& rSize );
 130
 131     private:
 132         /** Surface provider
 133
 134             Deliberately not a refcounted reference, because of
 135             potential circular references for canvas. Provides us with
 136             our output surface and associated functionality.
 137          */
 138         SurfaceProvider*          mpSurfaceProvider;
 139
 140         OutputDevice*             mpRefDevice;
 141         const void*               mpSysData;
 142         ::cairo::SurfaceSharedPtr mpSurface;
 143     };
 144 }
 145
 146 #endif