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Diffstat (limited to 'drawinglayer/inc/drawinglayer/primitive2d/sceneprimitive2d.hxx')
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1 files changed, 172 insertions, 0 deletions
diff --git a/drawinglayer/inc/drawinglayer/primitive2d/sceneprimitive2d.hxx b/drawinglayer/inc/drawinglayer/primitive2d/sceneprimitive2d.hxx new file mode 100644 index 000000000000..65d2bdf67f92 --- /dev/null +++ b/drawinglayer/inc/drawinglayer/primitive2d/sceneprimitive2d.hxx @@ -0,0 +1,172 @@ +/************************************************************************* + * + * OpenOffice.org - a multi-platform office productivity suite + * + * $RCSfile: sceneprimitive2d.hxx,v $ + * + * $Revision: 1.9 $ + * + * last change: $Author: aw $ $Date: 2008-06-24 15:30:17 $ + * + * The Contents of this file are made available subject to + * the terms of GNU Lesser General Public License Version 2.1. + * + * + * GNU Lesser General Public License Version 2.1 + * ============================================= + * Copyright 2005 by Sun Microsystems, Inc. + * 901 San Antonio Road, Palo Alto, CA 94303, USA + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License version 2.1, as published by the Free Software Foundation. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + ************************************************************************/ + +#ifndef INCLUDED_DRAWINGLAYER_PRIMITIVE2D_SCENEPRIMITIVE2D_HXX +#define INCLUDED_DRAWINGLAYER_PRIMITIVE2D_SCENEPRIMITIVE2D_HXX + +#include <drawinglayer/primitive2d/baseprimitive2d.hxx> +#include <drawinglayer/primitive3d/baseprimitive3d.hxx> +#include <drawinglayer/attribute/sdrattribute3d.hxx> +#include <drawinglayer/geometry/viewinformation3d.hxx> +#include <basegfx/matrix/b2dhommatrix.hxx> +#include <vcl/bitmapex.hxx> + +////////////////////////////////////////////////////////////////////////////// + +namespace drawinglayer +{ + namespace primitive2d + { + /** ScenePrimitive2D class + + This primitive defines a 3D scene as a 2D primitive and is the anchor point + for a 3D visualisation. The decomposition is view-dependent and will try to + re-use already rendered 3D content. + + The rendering is done using the default-3D renderer from basegfx which supports + AntiAliasing. + + The 2D primitive's geometric range is defined completely by the + ObjectTransformation combined with evtl. 2D shadows from the 3D objects. The + shadows of 3D objects are 2D polygons, projected with the 3D transformation. + + This is the class a renderer may process directly when he wants to implement + an own (e.g. system-specific) 3D renderer. + */ + class ScenePrimitive2D : public BufferedDecompositionPrimitive2D + { + private: + /// the 3D geometry definition + primitive3d::Primitive3DSequence mxChildren3D; + + /// 3D scene attribute set + attribute::SdrSceneAttribute maSdrSceneAttribute; + + /// lighting attribute set + attribute::SdrLightingAttribute maSdrLightingAttribute; + + /// object transformation for scene for 2D definition + basegfx::B2DHomMatrix maObjectTransformation; + + /// scene transformation set and object transformation + geometry::ViewInformation3D maViewInformation3D; + + /// the primitiveSequence for on-demand created shadow primitives (see mbShadow3DChecked) + Primitive2DSequence maShadowPrimitives; + + /// bitfield + /** flag if given 3D geometry is already cheched for shadow definitions and 2d shadows + are created in maShadowPrimitives + */ + unsigned mbShadow3DChecked : 1; + + /// the last used NewDiscreteSize and NewUnitVisiblePart definitions for decomposition + double mfOldDiscreteSizeX; + double mfOldDiscreteSizeY; + basegfx::B2DRange maOldUnitVisiblePart; + + /** the last created BitmapEx, e.g. for fast HitTest. This does not really need + memory since BitmapEx is internally RefCounted + */ + BitmapEx maOldRenderedBitmap; + + /// private helpers + bool impGetShadow3D(const geometry::ViewInformation2D& rViewInformation) const; + void calculateDiscreteSizes( + const geometry::ViewInformation2D& rViewInformation, + basegfx::B2DRange& rDiscreteRange, + basegfx::B2DRange& rVisibleDiscreteRange, + basegfx::B2DRange& rUnitVisibleRange) const; + + protected: + /// local decomposition. + virtual Primitive2DSequence create2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const; + + public: + /// public helpers + /** Geometry extractor. Shadow will be added as in create2DDecomposition, but + the 3D content is not converted to a bitmap visualisation but to projected 2D gemetry. This + helper is useful e.g. for Contour extraction or HitTests. + */ + Primitive2DSequence getGeometry2D() const; + Primitive2DSequence getShadow2D(const geometry::ViewInformation2D& rViewInformation) const; + + /** Fast HitTest which uses the last buffered BitmapEx from the last + rendered area if available. The return value describes if the check + could be done with the current information, so do NOT use o_rResult + when it returns false. o_rResult will be changed on return true and + then contains a definitive answer if content of this scene is hit or + not. On return false, it is normally necessary to use the geometric + HitTest (see CutFindProcessor usages). The given HitPoint + has to be in logic coordinates in scene's ObjectCoordinateSystem. + */ + bool tryToCheckLastVisualisationDirectHit(const basegfx::B2DPoint& rLogicHitPoint, bool& o_rResult) const; + + /// constructor + ScenePrimitive2D( + const primitive3d::Primitive3DSequence& rxChildren3D, + const attribute::SdrSceneAttribute& rSdrSceneAttribute, + const attribute::SdrLightingAttribute& rSdrLightingAttribute, + const basegfx::B2DHomMatrix& rObjectTransformation, + const geometry::ViewInformation3D& rViewInformation3D); + + /// data ead access + const primitive3d::Primitive3DSequence& getChildren3D() const { return mxChildren3D; } + const attribute::SdrSceneAttribute& getSdrSceneAttribute() const { return maSdrSceneAttribute; } + const attribute::SdrLightingAttribute& getSdrLightingAttribute() const { return maSdrLightingAttribute; } + const basegfx::B2DHomMatrix& getObjectTransformation() const { return maObjectTransformation; } + const geometry::ViewInformation3D& getViewInformation3D() const { return maViewInformation3D; } + + /// compare operator + virtual bool operator==(const BasePrimitive2D& rPrimitive) const; + + /// get range + virtual basegfx::B2DRange getB2DRange(const geometry::ViewInformation2D& rViewInformation) const; + + /// provide unique ID + DeclPrimitrive2DIDBlock() + + /// get local decomposition. Overloaded since this decomposition is view-dependent + virtual Primitive2DSequence get2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const; + }; + } // end of namespace primitive2d +} // end of namespace drawinglayer + +////////////////////////////////////////////////////////////////////////////// + +#endif //INCLUDED_DRAWINGLAYER_PRIMITIVE2D_SCENEPRIMITIVE2D_HXX + +////////////////////////////////////////////////////////////////////////////// +// eof |