xref: /aoo42x/main/canvas/source/cairo/cairo_canvas.hxx (revision cdf0e10c)

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#ifndef _CAIROCANVAS_CANVAS_HXX_
#define _CAIROCANVAS_CANVAS_HXX_

#include <rtl/ref.hxx>

#include <com/sun/star/uno/XComponentContext.hpp>
#include <com/sun/star/beans/XPropertySet.hpp>
#include <com/sun/star/lang/XInitialization.hpp>
#include <com/sun/star/lang/XServiceInfo.hpp>
#include <com/sun/star/lang/XServiceName.hpp>
#include <com/sun/star/awt/XWindowListener.hpp>
#include <com/sun/star/util/XUpdatable.hpp>
#include <com/sun/star/rendering/XSpriteCanvas.hpp>
#include <com/sun/star/rendering/XIntegerBitmap.hpp>
#include <com/sun/star/rendering/XGraphicDevice.hpp>
#include <com/sun/star/rendering/XBufferController.hpp>

#include <cppuhelper/compbase7.hxx>
#include <comphelper/uno3.hxx>

#include <canvas/base/spritecanvasbase.hxx>
#include <canvas/base/basemutexhelper.hxx>
#include <canvas/base/bufferedgraphicdevicebase.hxx>

#include <basegfx/vector/b2isize.hxx>

#include "cairo_devicehelper.hxx"
#include "cairo_repainttarget.hxx"
#include "cairo_surfaceprovider.hxx"
#include "cairo_spritecanvashelper.hxx"

#define CANVAS_SERVICE_NAME        "com.sun.star.rendering.Canvas.Cairo"
#define CANVAS_IMPLEMENTATION_NAME "com.sun.star.comp.rendering.Canvas.Cairo"

namespace cairocanvas
{
    typedef ::cppu::WeakComponentImplHelper7< ::com::sun::star::rendering::XBitmapCanvas,
                                                ::com::sun::star::rendering::XIntegerBitmap,
                                                ::com::sun::star::rendering::XGraphicDevice,
                                                ::com::sun::star::lang::XMultiServiceFactory,
                                                ::com::sun::star::util::XUpdatable,
                                                ::com::sun::star::beans::XPropertySet,
                                                ::com::sun::star::lang::XServiceName >	GraphicDeviceBase_Base;
    typedef ::canvas::GraphicDeviceBase< ::canvas::BaseMutexHelper< GraphicDeviceBase_Base >,
                                                 DeviceHelper,
                                                 ::osl::MutexGuard,
                                                 ::cppu::OWeakObject > CanvasBase_Base;

	/** Mixin SurfaceProvider

    	Have to mixin the SurfaceProvider before deriving from
    	::canvas::CanvasBase, as this template should already
    	implement some of those interface methods.

        The reason why this appears kinda convoluted is the fact that
        we cannot specify non-IDL types as WeakComponentImplHelperN
        template args, and furthermore, don't want to derive
        ::canvas::CanvasBase directly from
        SurfaceProvider (because derivees of
        ::canvas::CanvasBase have to explicitely forward the
        XInterface methods (e.g. via DECLARE_UNO3_AGG_DEFAULTS)
        anyway).
     */
	class CanvasBaseSurfaceProvider_Base : public CanvasBase_Base,
                                           public SurfaceProvider
    {
    };

	typedef ::canvas::IntegerBitmapBase< CanvasBaseSurfaceProvider_Base,
                                         CanvasHelper,
                                         ::osl::MutexGuard,
                                         ::cppu::OWeakObject >			CanvasBaseT;

    /** Product of this component's factory.

		The Canvas object combines the actual Window canvas with
		the XGraphicDevice interface. This is because there's a
		one-to-one relation between them, anyway, since each window
		can have exactly one canvas and one associated
		XGraphicDevice. And to avoid messing around with circular
		references, this is implemented as one single object.
     */
    class Canvas : public CanvasBaseT,
                   public RepaintTarget
    {
    public:
        Canvas( const ::com::sun::star::uno::Sequence<
                  ::com::sun::star::uno::Any >&               aArguments,
                const ::com::sun::star::uno::Reference<
                  ::com::sun::star::uno::XComponentContext >& rxContext );

        void initialize();

        /// For resource tracking
        ~Canvas();

#if defined __SUNPRO_CC
        using CanvasBaseT::disposing;
#endif

        /// Dispose all internal references
        virtual void SAL_CALL disposing();

		// Forwarding the XComponent implementation to the
        // cppu::ImplHelper templated base
        //                          Classname     Base doing refcounting        Base implementing the XComponent interface
        //                            |                 |                            |
        //                            V                 V                            V
        DECLARE_UNO3_XCOMPONENT_AGG_DEFAULTS( Canvas, GraphicDeviceBase_Base, ::cppu::WeakComponentImplHelperBase );

        // XServiceName
        virtual ::rtl::OUString SAL_CALL getServiceName(  ) throw (::com::sun::star::uno::RuntimeException);

        // RepaintTarget
        virtual bool repaint( const ::cairo::SurfaceSharedPtr& pSurface,
			      const ::com::sun::star::rendering::ViewState&	viewState,
			      const ::com::sun::star::rendering::RenderState&	renderState );

        // SurfaceProvider
		virtual SurfaceSharedPtr getSurface();
		virtual SurfaceSharedPtr createSurface( const ::basegfx::B2ISize& rSize, Content aContent = CAIRO_CONTENT_COLOR_ALPHA );
		virtual SurfaceSharedPtr createSurface( ::Bitmap& rBitmap );
		virtual SurfaceSharedPtr changeSurface( bool bHasAlpha, bool bCopyContent );
		virtual OutputDevice* getOutputDevice();

     private:
        ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Any >                maArguments;
        ::com::sun::star::uno::Reference< ::com::sun::star::uno::XComponentContext > mxComponentContext;
    };

    typedef ::rtl::Reference< Canvas > CanvasRef;
}

#endif