127 lines
6 KiB
C++
127 lines
6 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <drawinglayer/primitive2d/primitivetools2d.hxx>
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#include <basegfx/vector/b2dvector.hxx>
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#include <drawinglayer/geometry/viewinformation2d.hxx>
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namespace drawinglayer::primitive2d
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{
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void DiscreteMetricDependentPrimitive2D::get2DDecomposition(Primitive2DDecompositionVisitor& rVisitor, const geometry::ViewInformation2D& rViewInformation) const
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{
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// get the current DiscreteUnit, look at X and Y and use the maximum
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const basegfx::B2DVector aDiscreteVector(rViewInformation.getInverseObjectToViewTransformation() * basegfx::B2DVector(1.0, 1.0));
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const double fDiscreteUnit(std::min(fabs(aDiscreteVector.getX()), fabs(aDiscreteVector.getY())));
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if(getBuffered2DDecomposition() && !basegfx::fTools::equal(fDiscreteUnit, getDiscreteUnit()))
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{
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// conditions of last local decomposition have changed, delete
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const_cast< DiscreteMetricDependentPrimitive2D* >(this)->setBuffered2DDecomposition(nullptr);
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}
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if(!getBuffered2DDecomposition())
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{
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// remember new valid DiscreteUnit
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const_cast< DiscreteMetricDependentPrimitive2D* >(this)->mfDiscreteUnit = fDiscreteUnit;
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}
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// call base implementation
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BufferedDecompositionPrimitive2D::get2DDecomposition(rVisitor, rViewInformation);
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}
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void ViewportDependentPrimitive2D::get2DDecomposition(Primitive2DDecompositionVisitor& rVisitor, const geometry::ViewInformation2D& rViewInformation) const
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{
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// get the current Viewport
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const basegfx::B2DRange& rViewport = rViewInformation.getViewport();
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if(getBuffered2DDecomposition() && !rViewport.equal(getViewport()))
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{
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// conditions of last local decomposition have changed, delete
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const_cast< ViewportDependentPrimitive2D* >(this)->setBuffered2DDecomposition(nullptr);
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}
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if(!getBuffered2DDecomposition())
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{
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// remember new valid DiscreteUnit
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const_cast< ViewportDependentPrimitive2D* >(this)->maViewport = rViewport;
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}
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// call base implementation
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BufferedDecompositionPrimitive2D::get2DDecomposition(rVisitor, rViewInformation);
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}
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void ViewTransformationDependentPrimitive2D::get2DDecomposition(Primitive2DDecompositionVisitor& rVisitor, const geometry::ViewInformation2D& rViewInformation) const
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{
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// get the current ViewTransformation
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const basegfx::B2DHomMatrix& rViewTransformation = rViewInformation.getViewTransformation();
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if(getBuffered2DDecomposition() && rViewTransformation != getViewTransformation())
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{
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// conditions of last local decomposition have changed, delete
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const_cast< ViewTransformationDependentPrimitive2D* >(this)->setBuffered2DDecomposition(nullptr);
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}
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if(!getBuffered2DDecomposition())
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{
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// remember new valid ViewTransformation
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const_cast< ViewTransformationDependentPrimitive2D* >(this)->maViewTransformation = rViewTransformation;
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}
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// call base implementation
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BufferedDecompositionPrimitive2D::get2DDecomposition(rVisitor, rViewInformation);
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}
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void ObjectAndViewTransformationDependentPrimitive2D::get2DDecomposition(Primitive2DDecompositionVisitor& rVisitor, const geometry::ViewInformation2D& rViewInformation) const
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{
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// get the current ViewTransformation
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const basegfx::B2DHomMatrix& rViewTransformation = rViewInformation.getViewTransformation();
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if(getBuffered2DDecomposition() && rViewTransformation != getViewTransformation())
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{
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// conditions of last local decomposition have changed, delete
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const_cast< ObjectAndViewTransformationDependentPrimitive2D* >(this)->setBuffered2DDecomposition(nullptr);
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}
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// get the current ObjectTransformation
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const basegfx::B2DHomMatrix& rObjectTransformation = rViewInformation.getObjectTransformation();
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if(getBuffered2DDecomposition() && rObjectTransformation != getObjectTransformation())
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{
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// conditions of last local decomposition have changed, delete
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const_cast< ObjectAndViewTransformationDependentPrimitive2D* >(this)->setBuffered2DDecomposition(nullptr);
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}
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if(!getBuffered2DDecomposition())
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{
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// remember new valid ViewTransformation, and ObjectTransformation
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const_cast< ObjectAndViewTransformationDependentPrimitive2D* >(this)->maViewTransformation = rViewTransformation;
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const_cast< ObjectAndViewTransformationDependentPrimitive2D* >(this)->maObjectTransformation = rObjectTransformation;
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}
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// call base implementation
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BufferedDecompositionPrimitive2D::get2DDecomposition(rVisitor, rViewInformation);
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}
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} // end of namespace
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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