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| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
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| * distributed with this work for additional information |
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| * to you under the Apache License, Version 2.0 (the |
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| * http://www.apache.org/licenses/LICENSE-2.0 |
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| * software distributed under the License is distributed on an |
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| * |
| *************************************************************/ |
| |
| #ifndef INCLUDED_DRAWINGLAYER_PRIMITIVE2D_CROPPRIMITIVE2D_HXX |
| #define INCLUDED_DRAWINGLAYER_PRIMITIVE2D_CROPPRIMITIVE2D_HXX |
| |
| #include <drawinglayer/drawinglayerdllapi.h> |
| #include <drawinglayer/primitive2d/groupprimitive2d.hxx> |
| #include <basegfx/matrix/b2dhommatrix.hxx> |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| namespace drawinglayer |
| { |
| namespace primitive2d |
| { |
| /** CropPrimitive2D class |
| |
| Caution: Due to old constraints (old core definitions) the |
| crop distances describe how the uncropped content is defined |
| relative to the current object size. This means that maTransformation |
| describes the rurrent object size (the part of the object visible |
| with the crop applied). To get the original size and orientation |
| of the uncropped content it is necessary to calc back from the |
| current situation (maTransformation) using the crop values |
| to get to the uncropped original content. |
| |
| Thus a transformation has to be calculated which will be applied |
| to the already exsisting content to get it to the uncropped state |
| ans then this is masked with the current state (mask polygon |
| created from unit polygon and maTransformation). |
| |
| At least in this primitive the units of the crop values are |
| already in the local coordinate system; inthe core these distances |
| are defined relative to the object content size (PrefMapMode |
| and PrefSize of the content)... |
| |
| Of course this is a primitive, so feel free to just ignore all that |
| stuff and use the automatically generated decomposition. Sigh. |
| */ |
| class DRAWINGLAYER_DLLPUBLIC CropPrimitive2D : public GroupPrimitive2D |
| { |
| private: |
| // the transformation already applied to the child geometry |
| basegfx::B2DHomMatrix maTransformation; |
| |
| // the crop offsets relative to the range of the unrotated content |
| double mfCropLeft; |
| double mfCropTop; |
| double mfCropRight; |
| double mfCropBottom; |
| |
| public: |
| /// constructor |
| CropPrimitive2D( |
| const Primitive2DSequence& rChildren, |
| const basegfx::B2DHomMatrix& rTransformation, |
| double fCropLeft, |
| double fCropTop, |
| double fCropRight, |
| double fCropBottom); |
| |
| /// data read access |
| const basegfx::B2DHomMatrix& getTransformation() const { return maTransformation; } |
| double getCropLeft() const { return mfCropLeft; } |
| double getCropTop() const { return mfCropTop; } |
| double getCropRight() const { return mfCropRight; } |
| double getCropBottom() const { return mfCropBottom; } |
| |
| /// compare operator |
| virtual bool operator==(const BasePrimitive2D& rPrimitive) const; |
| |
| /// local decomposition |
| virtual Primitive2DSequence get2DDecomposition(const geometry::ViewInformation2D& rViewInformation) const; |
| |
| /// provide unique ID |
| DeclPrimitrive2DIDBlock() |
| }; |
| } // end of namespace primitive2d |
| } // end of namespace drawinglayer |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| #endif //INCLUDED_DRAWINGLAYER_PRIMITIVE2D_CROPPRIMITIVE2D_HXX |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| // eof |