diff options
Diffstat (limited to 'drawinglayer/inc/drawinglayer/primitive2d/fillgradientprimitive2d.hxx')
| -rw-r--r-- | drawinglayer/inc/drawinglayer/primitive2d/fillgradientprimitive2d.hxx | 55 |
1 files changed, 47 insertions, 8 deletions
diff --git a/drawinglayer/inc/drawinglayer/primitive2d/fillgradientprimitive2d.hxx b/drawinglayer/inc/drawinglayer/primitive2d/fillgradientprimitive2d.hxx index ef5a52c6ddcf..0fd084c6fad0 100644 --- a/drawinglayer/inc/drawinglayer/primitive2d/fillgradientprimitive2d.hxx +++ b/drawinglayer/inc/drawinglayer/primitive2d/fillgradientprimitive2d.hxx @@ -40,38 +40,77 @@ #include <drawinglayer/attribute/fillattribute.hxx> ////////////////////////////////////////////////////////////////////////////// -// FillbitmapPrimitive2D class +// predefines + +namespace basegfx { class B2DPolygon; } + +////////////////////////////////////////////////////////////////////////////// +// FillGradientPrimitive2D class namespace drawinglayer { namespace primitive2d { - class FillGradientPrimitive2D : public BasePrimitive2D + /** FillGradientPrimitive2D class + + This class defines a gradient filling for a rectangular area. The + Range is defined by the Transformation, the gradient by the FillGradientAttribute. + + The decomposition will deliver the decomposed gradient, e.g. for an ellipse + gradient the various ellipses in various color steps will be created. + + I have added functionality to create both versions of filled decompositions: + Those who overlap and non-overlapping ones. The overlapping version is the + default one since it works with and without AntiAliasing. The non-overlapping + version is used in the MetafilePrimitive2D decomposition when the old XOR + paint was recorded. + */ + class FillGradientPrimitive2D : public BufferedDecompositionPrimitive2D { private: + /// the geometric definition basegfx::B2DRange maObjectRange; + + /// the gradient definition attribute::FillGradientAttribute maFillGradient; + /// local helpers + void generateMatricesAndColors( + std::vector< basegfx::B2DHomMatrix >& rMatrices, + std::vector< basegfx::BColor >& rColors) const; + Primitive2DSequence createOverlappingFill( + const std::vector< basegfx::B2DHomMatrix >& rMatrices, + const std::vector< basegfx::BColor >& rColors, + const basegfx::B2DPolygon& rUnitPolygon) const; + Primitive2DSequence createNonOverlappingFill( + const std::vector< basegfx::B2DHomMatrix >& rMatrices, + const std::vector< basegfx::BColor >& rColors, + const basegfx::B2DPolygon& rUnitPolygon) const; + protected: - // local decomposition. - virtual Primitive2DSequence createLocalDecomposition(const geometry::ViewInformation2D& rViewInformation) const; + /// local helper + Primitive2DSequence createFill(bool bOverlapping) const; + + /// local decomposition. + virtual Primitive2DSequence create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const; public: + /// constructor FillGradientPrimitive2D( const basegfx::B2DRange& rObjectRange, const attribute::FillGradientAttribute& rFillGradient); - // get data + /// data read access const basegfx::B2DRange& getObjectRange() const { return maObjectRange; } const attribute::FillGradientAttribute& getFillGradient() const { return maFillGradient; } - // compare operator + /// compare operator virtual bool operator==(const BasePrimitive2D& rPrimitive) const; - // get range + /// get range virtual basegfx::B2DRange getB2DRange(const geometry::ViewInformation2D& rViewInformation) const; - // provide unique ID + /// provide unique ID DeclPrimitrive2DIDBlock() }; } // end of namespace primitive2d |