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Diffstat (limited to 'drawinglayer/source/primitive2d/primitivetools2d.cxx')
| -rw-r--r-- | drawinglayer/source/primitive2d/primitivetools2d.cxx | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/drawinglayer/source/primitive2d/primitivetools2d.cxx b/drawinglayer/source/primitive2d/primitivetools2d.cxx new file mode 100644 index 000000000..7c6d426e9 --- /dev/null +++ b/drawinglayer/source/primitive2d/primitivetools2d.cxx @@ -0,0 +1,127 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * 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 regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#include <drawinglayer/primitive2d/primitivetools2d.hxx> +#include <basegfx/vector/b2dvector.hxx> +#include <drawinglayer/geometry/viewinformation2d.hxx> + + +namespace drawinglayer::primitive2d +{ + void DiscreteMetricDependentPrimitive2D::get2DDecomposition(Primitive2DDecompositionVisitor& rVisitor, const geometry::ViewInformation2D& rViewInformation) const + { + // get the current DiscreteUnit, look at X and Y and use the maximum + const basegfx::B2DVector aDiscreteVector(rViewInformation.getInverseObjectToViewTransformation() * basegfx::B2DVector(1.0, 1.0)); + const double fDiscreteUnit(std::min(fabs(aDiscreteVector.getX()), fabs(aDiscreteVector.getY()))); + + if(!getBuffered2DDecomposition().empty() && !basegfx::fTools::equal(fDiscreteUnit, getDiscreteUnit())) + { + // conditions of last local decomposition have changed, delete + const_cast< DiscreteMetricDependentPrimitive2D* >(this)->setBuffered2DDecomposition(Primitive2DContainer()); + } + + if(getBuffered2DDecomposition().empty()) + { + // remember new valid DiscreteUnit + const_cast< DiscreteMetricDependentPrimitive2D* >(this)->mfDiscreteUnit = fDiscreteUnit; + } + + // call base implementation + BufferedDecompositionPrimitive2D::get2DDecomposition(rVisitor, rViewInformation); + } + + + + + void ViewportDependentPrimitive2D::get2DDecomposition(Primitive2DDecompositionVisitor& rVisitor, const geometry::ViewInformation2D& rViewInformation) const + { + // get the current Viewport + const basegfx::B2DRange& rViewport = rViewInformation.getViewport(); + + if(!getBuffered2DDecomposition().empty() && !rViewport.equal(getViewport())) + { + // conditions of last local decomposition have changed, delete + const_cast< ViewportDependentPrimitive2D* >(this)->setBuffered2DDecomposition(Primitive2DContainer()); + } + + if(getBuffered2DDecomposition().empty()) + { + // remember new valid DiscreteUnit + const_cast< ViewportDependentPrimitive2D* >(this)->maViewport = rViewport; + } + + // call base implementation + BufferedDecompositionPrimitive2D::get2DDecomposition(rVisitor, rViewInformation); + } + + void ViewTransformationDependentPrimitive2D::get2DDecomposition(Primitive2DDecompositionVisitor& rVisitor, const geometry::ViewInformation2D& rViewInformation) const + { + // get the current ViewTransformation + const basegfx::B2DHomMatrix& rViewTransformation = rViewInformation.getViewTransformation(); + + if(!getBuffered2DDecomposition().empty() && rViewTransformation != getViewTransformation()) + { + // conditions of last local decomposition have changed, delete + const_cast< ViewTransformationDependentPrimitive2D* >(this)->setBuffered2DDecomposition(Primitive2DContainer()); + } + + if(getBuffered2DDecomposition().empty()) + { + // remember new valid ViewTransformation + const_cast< ViewTransformationDependentPrimitive2D* >(this)->maViewTransformation = rViewTransformation; + } + + // call base implementation + BufferedDecompositionPrimitive2D::get2DDecomposition(rVisitor, rViewInformation); + } + + void ObjectAndViewTransformationDependentPrimitive2D::get2DDecomposition(Primitive2DDecompositionVisitor& rVisitor, const geometry::ViewInformation2D& rViewInformation) const + { + // get the current ViewTransformation + const basegfx::B2DHomMatrix& rViewTransformation = rViewInformation.getViewTransformation(); + + if(!getBuffered2DDecomposition().empty() && rViewTransformation != getViewTransformation()) + { + // conditions of last local decomposition have changed, delete + const_cast< ObjectAndViewTransformationDependentPrimitive2D* >(this)->setBuffered2DDecomposition(Primitive2DContainer()); + } + + // get the current ObjectTransformation + const basegfx::B2DHomMatrix& rObjectTransformation = rViewInformation.getObjectTransformation(); + + if(!getBuffered2DDecomposition().empty() && rObjectTransformation != getObjectTransformation()) + { + // conditions of last local decomposition have changed, delete + const_cast< ObjectAndViewTransformationDependentPrimitive2D* >(this)->setBuffered2DDecomposition(Primitive2DContainer()); + } + + if(getBuffered2DDecomposition().empty()) + { + // remember new valid ViewTransformation, and ObjectTransformation + const_cast< ObjectAndViewTransformationDependentPrimitive2D* >(this)->maViewTransformation = rViewTransformation; + const_cast< ObjectAndViewTransformationDependentPrimitive2D* >(this)->maObjectTransformation = rObjectTransformation; + } + + // call base implementation + BufferedDecompositionPrimitive2D::get2DDecomposition(rVisitor, rViewInformation); + } + +} // end of namespace + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |