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

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#ifndef _CAIROCANVAS_CANVASCUSTOMSPRITE_HXX
#define _CAIROCANVAS_CANVASCUSTOMSPRITE_HXX

#include <cppuhelper/compbase4.hxx>
#include <comphelper/uno3.hxx>

#include <com/sun/star/lang/XServiceInfo.hpp>
#include <com/sun/star/lang/XComponent.hpp>
#include <com/sun/star/rendering/XCustomSprite.hpp>
#include <com/sun/star/rendering/XIntegerBitmap.hpp>
#include <com/sun/star/rendering/XPolyPolygon2D.hpp>

#include <basegfx/point/b2dpoint.hxx>
#include <basegfx/vector/b2isize.hxx>
#include <basegfx/matrix/b2dhommatrix.hxx>

#include <canvas/base/basemutexhelper.hxx>
#include <canvas/base/canvascustomspritebase.hxx>

#include "cairo_sprite.hxx"
#include "cairo_cairo.hxx"
#include "cairo_canvashelper.hxx"
#include "cairo_repainttarget.hxx"
#include "cairo_spritehelper.hxx"
#include "cairo_spritecanvas.hxx"


namespace cairocanvas
{
    typedef ::cppu::WeakComponentImplHelper4< ::com::sun::star::rendering::XCustomSprite,
									 		  ::com::sun::star::rendering::XBitmapCanvas,
											  ::com::sun::star::rendering::XIntegerBitmap,
                         			 		  ::com::sun::star::lang::XServiceInfo >	CanvasCustomSpriteBase_Base;
	/** Mixin Sprite

    	Have to mixin the Sprite interface before deriving from
    	::canvas::CanvasCustomSpriteBase, 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::CanvasCustomSpriteBase directly from
        ::canvas::Sprite (because derivees of
        ::canvas::CanvasCustomSpriteBase have to explicitely forward
        the XInterface methods (e.g. via DECLARE_UNO3_AGG_DEFAULTS)
        anyway). Basically, ::canvas::CanvasCustomSpriteBase should
        remain a base class that provides implementation, not to
        enforce any specific interface on its derivees.
     */
	class CanvasCustomSpriteSpriteBase_Base : public ::canvas::BaseMutexHelper< CanvasCustomSpriteBase_Base >,
    									   	  public Sprite,
                                              public SurfaceProvider
    {
    };

	typedef ::canvas::CanvasCustomSpriteBase< CanvasCustomSpriteSpriteBase_Base,
                                              SpriteHelper,
                                              CanvasHelper,
                                              ::osl::MutexGuard,
                                              ::cppu::OWeakObject > 					CanvasCustomSpriteBaseT;

	/* Definition of CanvasCustomSprite class */

    class CanvasCustomSprite : public CanvasCustomSpriteBaseT,
							   public RepaintTarget
    {
    public:
        /** Create a custom sprite

			@param rSpriteSize
            Size of the sprite in pixel

            @param rRefDevice
            Associated output device

            @param rSpriteCanvas
            Target canvas

            @param rDevice
            Target DX device
         */
        CanvasCustomSprite( const ::com::sun::star::geometry::RealSize2D& 	rSpriteSize,
                            const SpriteCanvasRef&                          rRefDevice );

        virtual void SAL_CALL disposing();

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

        // XServiceInfo
        virtual ::rtl::OUString SAL_CALL getImplementationName() throw( ::com::sun::star::uno::RuntimeException );
        virtual sal_Bool SAL_CALL supportsService( const ::rtl::OUString& ServiceName ) throw( ::com::sun::star::uno::RuntimeException );
        virtual ::com::sun::star::uno::Sequence< ::rtl::OUString > SAL_CALL getSupportedServiceNames()  throw( ::com::sun::star::uno::RuntimeException );

        // Sprite
        virtual void redraw( const ::cairo::CairoSharedPtr& pCairo,
                             bool                           bBufferedUpdate ) const;
        virtual void redraw( const ::cairo::CairoSharedPtr& pCairo,
                             const ::basegfx::B2DPoint&     rOrigOutputPos,
                             bool                           bBufferedUpdate ) const;

        // 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:
        /** MUST hold here, too, since CanvasHelper only contains a
            raw pointer (without refcounting)
        */
        SpriteCanvasRef           mpSpriteCanvas;
		::cairo::SurfaceSharedPtr mpBufferSurface;
		::basegfx::B2ISize        maSize;
    };
}

#endif /* _CAIROCANVAS_CANVASCUSTOMSPRITE_HXX */