libreoffice/canvas/source/directx/dx_bitmap.hxx

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#ifndef _DXCANVAS_DXBITMAP_HXX
#define _DXCANVAS_DXBITMAP_HXX

#include <com/sun/star/rendering/XCanvas.hpp>
#include <com/sun/star/rendering/XIntegerBitmap.hpp>
#include <canvas/rendering/isurfaceproxy.hxx>
#include <canvas/rendering/isurfaceproxymanager.hxx>
#include <boost/shared_ptr.hpp>
#include <basegfx/vector/b2ivector.hxx>
#include <basegfx/point/b2dpoint.hxx>
#include <basegfx/range/b2drange.hxx>
#include "dx_canvasfont.hxx" //winstuff
#include "dx_gdiplususer.hxx"
#include "dx_rendermodule.hxx"

namespace dxcanvas
{
    typedef ::boost::shared_ptr< class SurfaceGraphics > SurfaceGraphicsSharedPtr;

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

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

        BitmapSharedPtr                         getBitmap();
        SurfaceGraphicsSharedPtr                getGraphics() const;
        COMReference<surface_type>              getSurface() const { return mpSurface; }
        ::basegfx::B2IVector                    getSize() { return maSize; }

        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 );

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

        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 );

        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 );

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

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

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

        // indicates wether 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< DXBitmap > DXBitmapSharedPtr;
}

#endif