xref: /aoo42x/main/canvas/source/directx/dx_surfacebitmap.hxx (revision 940681c7)

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 * to you under the Apache License, Version 2.0 (the
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#ifndef _DXCANVAS_DXSURFACEBITMAP_HXX
#define _DXCANVAS_DXSURFACEBITMAP_HXX

#include <canvas/rendering/isurfaceproxy.hxx>
#include <canvas/rendering/isurfaceproxymanager.hxx>
#include "dx_ibitmap.hxx"
#include "dx_canvasfont.hxx" //winstuff
#include "dx_gdiplususer.hxx"
#include "dx_rendermodule.hxx"

namespace dxcanvas
{
	class DXSurfaceBitmap : public IBitmap
	{
    public:
        DXSurfaceBitmap( const ::basegfx::B2IVector&					rSize,
                         const canvas::ISurfaceProxyManagerSharedPtr&	rMgr,
                         const IDXRenderModuleSharedPtr&				rRenderModule,
                         bool											bWithAlpha );

        bool resize( const ::basegfx::B2IVector& rSize );
        void clear();

        virtual GraphicsSharedPtr         getGraphics();

        virtual BitmapSharedPtr           getBitmap() const;
        virtual ::basegfx::B2IVector      getSize() const;
        virtual bool                      hasAlpha() const;

        COMReference<surface_type>				getSurface() const { return mpSurface; }

        bool draw( double							fAlpha,
                   const ::basegfx::B2DPoint&		rPos,
                   const ::basegfx::B2DHomMatrix&	rTransform );

        bool draw( const ::basegfx::B2IRange&		rArea );

        bool draw( double							fAlpha,
                   const ::basegfx::B2DPoint&		rPos,
                   const ::basegfx::B2DRange&		rArea,
                   const ::basegfx::B2DHomMatrix&	rTransform );

        bool draw( double							fAlpha,
                   const ::basegfx::B2DPoint&       rPos,
                   const ::basegfx::B2DPolyPolygon& rClipPoly,
                   const ::basegfx::B2DHomMatrix&   rTransform );

        virtual ::com::sun::star::uno::Sequence< sal_Int8 > getData(
            ::com::sun::star::rendering::IntegerBitmapLayout&		bitmapLayout,
            const ::com::sun::star::geometry::IntegerRectangle2D&	rect );

        virtual void setData(
            const ::com::sun::star::uno::Sequence< sal_Int8 >&		data,
            const ::com::sun::star::rendering::IntegerBitmapLayout& bitmapLayout,
            const ::com::sun::star::geometry::IntegerRectangle2D&	rect );

        virtual void setPixel(
            const ::com::sun::star::uno::Sequence< sal_Int8 >&		color,
            const ::com::sun::star::rendering::IntegerBitmapLayout& bitmapLayout,
            const ::com::sun::star::geometry::IntegerPoint2D&		pos );

        virtual ::com::sun::star::uno::Sequence< sal_Int8 > getPixel(
            ::com::sun::star::rendering::IntegerBitmapLayout&		bitmapLayout,
            const ::com::sun::star::geometry::IntegerPoint2D&		pos );

#ifdef DX_DEBUG_IMAGES
        void imageDebugger();
#endif
    private:
        void init();

        // Refcounted global GDI+ state container
        GDIPlusUserSharedPtr mpGdiPlusUser;

        // size of this image in pixels [integral unit]
        ::basegfx::B2IVector maSize;

        // pointer to the rendermodule, needed to create surfaces
        // which are used as container for the actual pixel data.
        // generally we could use any kind of storage, but GDI+
        // is not willing to render antialiased fonts unless we
        // use this special kind of container, don't ask me why...
        IDXRenderModuleSharedPtr mpRenderModule;

        // pointer to the surface manager, needed in case clients
        // want to resize the bitmap.
        canvas::ISurfaceProxyManagerSharedPtr mpSurfaceManager;

        // access point to the surface proxy which handles
        // the hardware-dependent rendering stuff.
        canvas::ISurfaceProxySharedPtr mpSurfaceProxy;

        // container for pixel data, we need to use a directx
        // surface since GDI+ sucks...
        COMReference<surface_type> mpSurface;

		// since GDI+ does not work correctly in case we
		// run on a 16bit display [don't ask me why] we need
		// to occasionally render to a native GDI+ bitmap.
		BitmapSharedPtr mpGDIPlusBitmap;
        // Graphics for the mpGDIPlusBitmap
        GraphicsSharedPtr mpGraphics;

        // internal implementation of the iColorBuffer interface
        canvas::IColorBufferSharedPtr mpColorBuffer;

        // indicates whether the associated surface needs
        // to refresh its contents or not. in other words,
        // this flag is set iff both representations are
        // out of sync.
        mutable bool mbIsSurfaceDirty;

        // true if the bitmap contains an alpha channel
        bool mbAlpha;
	};

    typedef ::boost::shared_ptr< DXSurfaceBitmap > DXSurfaceBitmapSharedPtr;
}

#endif