diff options
Diffstat (limited to 'drawinglayer/inc/drawinglayer/primitive2d/gridprimitive2d.hxx')
| -rw-r--r-- | drawinglayer/inc/drawinglayer/primitive2d/gridprimitive2d.hxx | 38 |
1 files changed, 28 insertions, 10 deletions
diff --git a/drawinglayer/inc/drawinglayer/primitive2d/gridprimitive2d.hxx b/drawinglayer/inc/drawinglayer/primitive2d/gridprimitive2d.hxx index e6a20f9640..8ea1b86f11 100644 --- a/drawinglayer/inc/drawinglayer/primitive2d/gridprimitive2d.hxx +++ b/drawinglayer/inc/drawinglayer/primitive2d/gridprimitive2d.hxx @@ -48,29 +48,47 @@ namespace drawinglayer { namespace primitive2d { - class GridPrimitive2D : public BasePrimitive2D + /** GridPrimitive2D class + + This primitive is specialized to Grid visualisation. The graphic definition + (Transform) contains the whole grid area, but will of course be combined + with the visible area (Viewport) when decomposed. Also a reolution-dependent + point reduction is used to not create too much grid visualisation data. This + makes this primitive highly view-dependent and it dynamically buffers + the last decomposition dependent from the Viewport used. + */ + class GridPrimitive2D : public BufferedDecompositionPrimitive2D { private: + /// The geometry definition for the grid area basegfx::B2DHomMatrix maTransform; + + /// grid layout definitions double mfWidth; double mfHeight; double mfSmallestViewDistance; double mfSmallestSubdivisionViewDistance; sal_uInt32 mnSubdivisionsX; sal_uInt32 mnSubdivisionsY; + + /// Grid color for single-pixel grid points basegfx::BColor maBColor; + + /// The Bitmap (with alpha) for grid cross points BitmapEx maCrossMarker; - // the last used object to view transformtion and the last Viewport, - // used from getDecomposition for decide buffering + /** the last used object to view transformtion and the last Viewport, + used from getDecomposition for decide buffering + */ basegfx::B2DHomMatrix maLastObjectToViewTransformation; basegfx::B2DRange maLastViewport; protected: - // create local decomposition - virtual Primitive2DSequence createLocalDecomposition(const geometry::ViewInformation2D& rViewInformation) const; + /// create local decomposition + virtual Primitive2DSequence create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const; public: + /// constructor GridPrimitive2D( const basegfx::B2DHomMatrix& rTransform, double fWidth, @@ -82,7 +100,7 @@ namespace drawinglayer const basegfx::BColor& rBColor, const BitmapEx& rCrossMarker); - // get data + /// data read access const basegfx::B2DHomMatrix& getTransform() const { return maTransform; } double getWidth() const { return mfWidth; } double getHeight() const { return mfHeight; } @@ -93,16 +111,16 @@ namespace drawinglayer const basegfx::BColor& getBColor() const { return maBColor; } const BitmapEx& getCrossMarker() const { return maCrossMarker; } - // compare operator + /// compare operator virtual bool operator==(const BasePrimitive2D& rPrimitive) const; - // get 2d range + /// get 2d range virtual basegfx::B2DRange getB2DRange(const geometry::ViewInformation2D& rViewInformation) const; - // provide unique ID + /// provide unique ID DeclPrimitrive2DIDBlock() - // Overload standard getDecomposition call to be view-dependent here + /// Overload standard getDecomposition call to be view-dependent here virtual Primitive2DSequence get2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const; }; } // end of namespace primitive2d |