| /************************************************************** |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
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| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
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| * http://www.apache.org/licenses/LICENSE-2.0 |
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| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| *************************************************************/ |
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| |
| |
| #ifndef INCLUDED_DRAWINGLAYER_PRIMITIVE2D_TRANSFORMPRIMITIVE2D_HXX |
| #define INCLUDED_DRAWINGLAYER_PRIMITIVE2D_TRANSFORMPRIMITIVE2D_HXX |
| |
| #include <drawinglayer/drawinglayerdllapi.h> |
| #include <drawinglayer/primitive2d/groupprimitive2d.hxx> |
| #include <basegfx/matrix/b2dhommatrix.hxx> |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| namespace drawinglayer |
| { |
| namespace primitive2d |
| { |
| /** TransformPrimitive2D class |
| |
| This is one of the basic grouping primitives and it provides |
| embedding a sequence of primitives (a geometry) into a |
| transformation. All renderers have to handle this, usually by |
| building a current transformation stack (linear combination) |
| and applying this to all to-be-rendered geometry. If not handling |
| this, the output will be mostly wrong since this primitive is |
| widely used. |
| |
| It does transform by embedding an existing geometry into a |
| transformation as Child-content. This allows re-usage of the |
| refcounted Uno-Api primitives and their existung, buffered |
| decompositions. |
| |
| It could e.g. be used to show a single object geometry in 1000 |
| different, transformed states without the need to create those |
| thousand primitive contents. |
| */ |
| class DRAWINGLAYER_DLLPUBLIC TransformPrimitive2D : public GroupPrimitive2D |
| { |
| private: |
| // the transformation to apply to the child geometry |
| basegfx::B2DHomMatrix maTransformation; |
| |
| public: |
| /// constructor |
| TransformPrimitive2D( |
| const basegfx::B2DHomMatrix& rTransformation, |
| const Primitive2DSequence& rChildren); |
| |
| /// data read access |
| const basegfx::B2DHomMatrix& getTransformation() const { return maTransformation; } |
| |
| /// compare operator |
| virtual bool operator==(const BasePrimitive2D& rPrimitive) const; |
| |
| /// get range |
| virtual basegfx::B2DRange getB2DRange(const geometry::ViewInformation2D& rViewInformation) const; |
| |
| /// provide unique ID |
| DeclPrimitrive2DIDBlock() |
| }; |
| } // end of namespace primitive2d |
| } // end of namespace drawinglayer |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| #endif //INCLUDED_DRAWINGLAYER_PRIMITIVE2D_TRANSFORMPRIMITIVE2D_HXX |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| // eof |