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/* -*- 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: */
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