canvas/source/cairo/cairo_canvas.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #ifndef _CAIROCANVAS_CANVAS_HXX_
  21 #define _CAIROCANVAS_CANVAS_HXX_
  22
  23 #include <rtl/ref.hxx>
  24
  25 #include <com/sun/star/uno/XComponentContext.hpp>
  26 #include <com/sun/star/beans/XPropertySet.hpp>
  27 #include <com/sun/star/lang/XInitialization.hpp>
  28 #include <com/sun/star/lang/XServiceInfo.hpp>
  29 #include <com/sun/star/lang/XServiceName.hpp>
  30 #include <com/sun/star/awt/XWindowListener.hpp>
  31 #include <com/sun/star/util/XUpdatable.hpp>
  32 #include <com/sun/star/rendering/XSpriteCanvas.hpp>
  33 #include <com/sun/star/rendering/XIntegerBitmap.hpp>
  34 #include <com/sun/star/rendering/XGraphicDevice.hpp>
  35 #include <com/sun/star/rendering/XBufferController.hpp>
  36
  37 #include <cppuhelper/compbase7.hxx>
  38 #include <comphelper/uno3.hxx>
  39
  40 #include <canvas/base/spritecanvasbase.hxx>
  41 #include <canvas/base/disambiguationhelper.hxx>
  42 #include <canvas/base/bufferedgraphicdevicebase.hxx>
  43
  44 #include <basegfx/vector/b2isize.hxx>
  45
  46 #include "cairo_devicehelper.hxx"
  47 #include "cairo_repainttarget.hxx"
  48 #include "cairo_surfaceprovider.hxx"
  49 #include "cairo_spritecanvashelper.hxx"
  50
  51 #define CANVAS_SERVICE_NAME        "com.sun.star.rendering.Canvas.Cairo"
  52 #define CANVAS_IMPLEMENTATION_NAME "com.sun.star.comp.rendering.Canvas.Cairo"
  53
  54 namespace cairocanvas
  55 {
  56     typedef ::cppu::WeakComponentImplHelper7< ::com::sun::star::rendering::XBitmapCanvas,
  57                                                 ::com::sun::star::rendering::XIntegerBitmap,
  58                                                 ::com::sun::star::rendering::XGraphicDevice,
  59                                                 ::com::sun::star::lang::XMultiServiceFactory,
  60                                                 ::com::sun::star::util::XUpdatable,
  61                                                 ::com::sun::star::beans::XPropertySet,
  62                                                 ::com::sun::star::lang::XServiceName >  GraphicDeviceBase_Base;
  63     typedef ::canvas::GraphicDeviceBase< ::canvas::DisambiguationHelper< GraphicDeviceBase_Base >,
  64                                                  DeviceHelper,
  65                                                  ::osl::MutexGuard,
  66                                                  ::cppu::OWeakObject > CanvasBase_Base;
  67
  68     /** Mixin SurfaceProvider
  69
  70         Have to mixin the SurfaceProvider before deriving from
  71         ::canvas::CanvasBase, as this template should already
  72         implement some of those interface methods.
  73
  74         The reason why this appears kinda convoluted is the fact that
  75         we cannot specify non-IDL types as WeakComponentImplHelperN
  76         template args, and furthermore, don't want to derive
  77         ::canvas::CanvasBase directly from
  78         SurfaceProvider (because derivees of
  79         ::canvas::CanvasBase have to explicitly forward the
  80         XInterface methods (e.g. via DECLARE_UNO3_AGG_DEFAULTS)
  81         anyway).
  82      */
  83     class CanvasBaseSurfaceProvider_Base : public CanvasBase_Base,
  84                                            public SurfaceProvider
  85     {
  86     };
  87
  88     typedef ::canvas::IntegerBitmapBase< CanvasBaseSurfaceProvider_Base,
  89                                          CanvasHelper,
  90                                          ::osl::MutexGuard,
  91                                          ::cppu::OWeakObject >          CanvasBaseT;
  92
  93     /** Product of this component's factory.
  94
  95         The Canvas object combines the actual Window canvas with
  96         the XGraphicDevice interface. This is because there's a
  97         one-to-one relation between them, anyway, since each window
  98         can have exactly one canvas and one associated
  99         XGraphicDevice. And to avoid messing around with circular
 100         references, this is implemented as one single object.
 101      */
 102     class Canvas : public CanvasBaseT,
 103                    public RepaintTarget
 104     {
 105     public:
 106         Canvas( const ::com::sun::star::uno::Sequence<
 107                   ::com::sun::star::uno::Any >&               aArguments,
 108                 const ::com::sun::star::uno::Reference<
 109                   ::com::sun::star::uno::XComponentContext >& rxContext );
 110
 111         void initialize();
 112
 113         /// For resource tracking
 114         ~Canvas();
 115
 116         /// Dispose all internal references
 117         virtual void disposeThis();
 118
 119         // Forwarding the XComponent implementation to the
 120         // cppu::ImplHelper templated base
 121         //                          Classname     Base doing refcounting        Base implementing the XComponent interface
 122         //                            |                 |                            |
 123         //                            V                 V                            V
 124         DECLARE_UNO3_XCOMPONENT_AGG_DEFAULTS( Canvas, GraphicDeviceBase_Base, ::cppu::WeakComponentImplHelperBase );
 125
 126         // XServiceName
 127         virtual OUString SAL_CALL getServiceName(  ) throw (::com::sun::star::uno::RuntimeException);
 128
 129         // RepaintTarget
 130         virtual bool repaint( const ::cairo::SurfaceSharedPtr& pSurface,
 131                   const ::com::sun::star::rendering::ViewState& viewState,
 132                   const ::com::sun::star::rendering::RenderState&   renderState );
 133
 134         // SurfaceProvider
 135         virtual SurfaceSharedPtr getSurface();
 136         virtual SurfaceSharedPtr createSurface( const ::basegfx::B2ISize& rSize, Content aContent = CAIRO_CONTENT_COLOR_ALPHA );
 137         virtual SurfaceSharedPtr createSurface( ::Bitmap& rBitmap );
 138         virtual SurfaceSharedPtr changeSurface( bool bHasAlpha, bool bCopyContent );
 139         virtual OutputDevice* getOutputDevice();
 140
 141      private:
 142         ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Any >                maArguments;
 143         ::com::sun::star::uno::Reference< ::com::sun::star::uno::XComponentContext > mxComponentContext;
 144     };
 145
 146     typedef ::rtl::Reference< Canvas > CanvasRef;
 147 }
 148
 149 #endif
 150
 151 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */