dx_canvashelper.hxx

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#pragma once
 
#include <com/sun/star/rendering/XCanvas.hpp>
#include <com/sun/star/rendering/XBitmapCanvas.hpp>
#include <com/sun/star/rendering/XIntegerBitmap.hpp>
 
#include <basegfx/vector/b2isize.hxx>
#include <basegfx/vector/b2dsize.hxx>
 
#include "dx_graphicsprovider.hxx"
#include "dx_gdiplususer.hxx"
#include "dx_impltools.hxx"
 
 
namespace dxcanvas
{
    class CanvasHelper
    {
    public:
        CanvasHelper();
 
        CanvasHelper(const CanvasHelper&) = delete;
        const CanvasHelper& operator=(const CanvasHelper&) = delete;
 
        void disposing();
 
        void setDevice( css::rendering::XGraphicDevice& rDevice );
 
        void setTarget( const GraphicsProviderSharedPtr& rTarget );
 
        void setTarget( const GraphicsProviderSharedPtr& rTarget,
                        const ::basegfx::B2ISize&        rOutputOffset );
 
 
        // CanvasHelper functionality
        // ==========================
 
        // XCanvas (only providing, not implementing the
        // interface. Also note subtle method parameter differences)
        void clear();
        void drawPoint( const css::rendering::XCanvas*     pCanvas,
                        const css::geometry::RealPoint2D&  aPoint,
                        const css::rendering::ViewState&   viewState,
                        const css::rendering::RenderState& renderState );
        void drawLine( const css::rendering::XCanvas*      pCanvas,
                       const css::geometry::RealPoint2D&   aStartPoint,
                       const css::geometry::RealPoint2D&   aEndPoint,
                       const css::rendering::ViewState&    viewState,
                       const css::rendering::RenderState&  renderState );
        void drawBezier( const css::rendering::XCanvas*            pCanvas,
                         const css::geometry::RealBezierSegment2D& aBezierSegment,
                         const css::geometry::RealPoint2D&         aEndPoint,
                         const css::rendering::ViewState&          viewState,
                         const css::rendering::RenderState&        renderState );
        css::uno::Reference< css::rendering::XCachedPrimitive >
            drawPolyPolygon( const css::rendering::XCanvas*            pCanvas,
                             const css::uno::Reference<
                                     css::rendering::XPolyPolygon2D >& xPolyPolygon,
                             const css::rendering::ViewState&          viewState,
                             const css::rendering::RenderState&        renderState );
        css::uno::Reference< css::rendering::XCachedPrimitive >
            strokePolyPolygon( const css::rendering::XCanvas*          pCanvas,
                               const css::uno::Reference<
                                       css::rendering::XPolyPolygon2D >&   xPolyPolygon,
                               const css::rendering::ViewState&        viewState,
                               const css::rendering::RenderState&      renderState,
                               const css::rendering::StrokeAttributes& strokeAttributes );
        css::uno::Reference< css::rendering::XCachedPrimitive >
            strokeTexturedPolyPolygon( const css::rendering::XCanvas*          pCanvas,
                                       const css::uno::Reference<
                                               css::rendering::XPolyPolygon2D >&   xPolyPolygon,
                                       const css::rendering::ViewState&        viewState,
                                       const css::rendering::RenderState&      renderState,
                                       const css::uno::Sequence<
                                               css::rendering::Texture >&      textures,
                                       const css::rendering::StrokeAttributes& strokeAttributes );
        css::uno::Reference< css::rendering::XCachedPrimitive >
            strokeTextureMappedPolyPolygon( const css::rendering::XCanvas*             pCanvas,
                                            const css::uno::Reference<
                                                    css::rendering::XPolyPolygon2D >&  xPolyPolygon,
                                            const css::rendering::ViewState&           viewState,
                                            const css::rendering::RenderState&         renderState,
                                            const css::uno::Sequence<
                                                    css::rendering::Texture >&         textures,
                                            const css::uno::Reference<
                                                    css::geometry::XMapping2D >&       xMapping,
                                            const css::rendering::StrokeAttributes&    strokeAttributes );
        css::uno::Reference< css::rendering::XPolyPolygon2D >
            queryStrokeShapes( const css::rendering::XCanvas*          pCanvas,
                               const css::uno::Reference<
                                       css::rendering::XPolyPolygon2D >&   xPolyPolygon,
                               const css::rendering::ViewState&        viewState,
                               const css::rendering::RenderState&      renderState,
                               const css::rendering::StrokeAttributes& strokeAttributes );
        css::uno::Reference< css::rendering::XCachedPrimitive >
            fillPolyPolygon( const css::rendering::XCanvas*            pCanvas,
                             const css::uno::Reference<
                                     css::rendering::XPolyPolygon2D >&     xPolyPolygon,
                             const css::rendering::ViewState&          viewState,
                             const css::rendering::RenderState&        renderState );
        css::uno::Reference< css::rendering::XCachedPrimitive >
            fillTexturedPolyPolygon( const css::rendering::XCanvas*            pCanvas,
                                     const css::uno::Reference<
                                             css::rendering::XPolyPolygon2D >&     xPolyPolygon,
                                     const css::rendering::ViewState&          viewState,
                                     const css::rendering::RenderState&        renderState,
                                     const css::uno::Sequence<
                                             css::rendering::Texture >&        textures );
        css::uno::Reference< css::rendering::XCachedPrimitive >
            fillTextureMappedPolyPolygon( const css::rendering::XCanvas*           pCanvas,
                                          const css::uno::Reference<
                                                  css::rendering::XPolyPolygon2D >&    xPolyPolygon,
                                          const css::rendering::ViewState&         viewState,
                                          const css::rendering::RenderState&       renderState,
                                          const css::uno::Sequence<
                                                  css::rendering::Texture >&       textures,
                                          const css::uno::Reference<
                                                  css::geometry::XMapping2D >&         xMapping );
 
        css::uno::Reference< css::rendering::XCanvasFont >
            createFont( const css::rendering::XCanvas*             pCanvas,
                        const css::rendering::FontRequest&         fontRequest,
                        const css::uno::Sequence<
                                css::beans::PropertyValue >&       extraFontProperties,
                        const css::geometry::Matrix2D&             fontMatrix );
 
        css::uno::Sequence< css::rendering::FontInfo >
            queryAvailableFonts( const css::rendering::XCanvas*        pCanvas,
                                 const css::rendering::FontInfo&       aFilter,
                                 const css::uno::Sequence<
                                         css::beans::PropertyValue >&  aFontProperties );
 
        css::uno::Reference< css::rendering::XCachedPrimitive >
            drawText( const css::rendering::XCanvas*           pCanvas,
                      const css::rendering::StringContext&     text,
                      const css::uno::Reference<
                              css::rendering::XCanvasFont >&   xFont,
                      const css::rendering::ViewState&         viewState,
                      const css::rendering::RenderState&       renderState,
                      sal_Int8                                              textDirection );
 
        css::uno::Reference< css::rendering::XCachedPrimitive >
            drawTextLayout( const css::rendering::XCanvas*     pCanvas,
                            const css::uno::Reference<
                                css::rendering::XTextLayout >& laidOutText,
                            const css::rendering::ViewState&   viewState,
                            const css::rendering::RenderState& renderState );
 
        css::uno::Reference< css::rendering::XCachedPrimitive >
            drawBitmap( const css::rendering::XCanvas*     pCanvas,
                        const css::uno::Reference<
                                css::rendering::XBitmap >& xBitmap,
                        const css::rendering::ViewState&   viewState,
                        const css::rendering::RenderState& renderState );
        css::uno::Reference< css::rendering::XCachedPrimitive >
            drawBitmapModulated( const css::rendering::XCanvas*        pCanvas,
                                 const css::uno::Reference<
                                         css::rendering::XBitmap >&        xBitmap,
                                 const css::rendering::ViewState&      viewState,
                                 const css::rendering::RenderState&    renderState );
        css::uno::Reference< css::rendering::XGraphicDevice >
            getDevice();
 
        // Flush drawing queue to screen
        void                    flush() const;
 
        void modifying() {}
 
    protected:
        GDIPlusUserSharedPtr            mpGdiPlusUser;
 
        css::rendering::XGraphicDevice* mpDevice;
 
        GraphicsProviderSharedPtr                  mpGraphicsProvider;
 
        bool needOutput() const { return bool(mpGraphicsProvider); };
 
        // returns transparency of color
        void setupGraphicsState( GraphicsSharedPtr const & rGraphics,
                                 const css::rendering::ViewState&   viewState,
                                 const css::rendering::RenderState& renderState );
 
        Gdiplus::CompositingMode    calcCompositingMode( sal_Int8 nMode );
 
        ::basegfx::B2ISize              maOutputOffset;
    };
}
 
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