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Diffstat (limited to 'basegfx/source/polygon/b2dpolypolygon.cxx')
| -rw-r--r-- | basegfx/source/polygon/b2dpolypolygon.cxx | 441 |
1 files changed, 441 insertions, 0 deletions
diff --git a/basegfx/source/polygon/b2dpolypolygon.cxx b/basegfx/source/polygon/b2dpolypolygon.cxx new file mode 100644 index 000000000..4a81a82c4 --- /dev/null +++ b/basegfx/source/polygon/b2dpolypolygon.cxx @@ -0,0 +1,441 @@ +/* -*- 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 <sal/config.h> + +#include <utility> + +#include <basegfx/polygon/b2dpolypolygon.hxx> +#include <osl/diagnose.h> +#include <basegfx/polygon/b2dpolygon.hxx> +#include <basegfx/matrix/b2dhommatrix.hxx> +#include <basegfx/utils/systemdependentdata.hxx> + +namespace basegfx +{ + +class ImplB2DPolyPolygon +{ + basegfx::B2DPolygonVector maPolygons; + std::unique_ptr< basegfx::SystemDependentDataHolder > mpSystemDependentDataHolder; + +public: + ImplB2DPolyPolygon() + { + } + + explicit ImplB2DPolyPolygon(const ImplB2DPolyPolygon& rSource) + : maPolygons(rSource.maPolygons) + { + } + + explicit ImplB2DPolyPolygon(const basegfx::B2DPolygon& rToBeCopied) + : maPolygons(1,rToBeCopied) + { + } + + ImplB2DPolyPolygon& operator=(const ImplB2DPolyPolygon& rSource) + { + if (this != &rSource) + { + maPolygons = rSource.maPolygons; + mpSystemDependentDataHolder.reset(); + } + + return *this; + } + + void addOrReplaceSystemDependentData(basegfx::SystemDependentData_SharedPtr& rData) + { + if(!mpSystemDependentDataHolder) + { + mpSystemDependentDataHolder.reset(new basegfx::SystemDependentDataHolder()); + } + + mpSystemDependentDataHolder->addOrReplaceSystemDependentData(rData); + } + + basegfx::SystemDependentData_SharedPtr getSystemDependentData(size_t hash_code) const + { + if(!mpSystemDependentDataHolder) + { + return basegfx::SystemDependentData_SharedPtr(); + } + + return mpSystemDependentDataHolder->getSystemDependentData(hash_code); + } + + bool operator==(const ImplB2DPolyPolygon& rPolygonList) const + { + return maPolygons == rPolygonList.maPolygons; + } + + const basegfx::B2DPolygon& getB2DPolygon(sal_uInt32 nIndex) const + { + return maPolygons[nIndex]; + } + + void setB2DPolygon(sal_uInt32 nIndex, const basegfx::B2DPolygon& rPolygon) + { + maPolygons[nIndex] = rPolygon; + } + + void insert(sal_uInt32 nIndex, const basegfx::B2DPolygon& rPolygon, sal_uInt32 nCount) + { + if(nCount) + { + // add nCount copies of rPolygon + basegfx::B2DPolygonVector::iterator aIndex(maPolygons.begin()); + if( nIndex ) + aIndex += nIndex; + maPolygons.insert(aIndex, nCount, rPolygon); + } + } + + void insert(sal_uInt32 nIndex, const basegfx::B2DPolyPolygon& rPolyPolygon) + { + // add nCount polygons from rPolyPolygon + basegfx::B2DPolygonVector::iterator aIndex(maPolygons.begin()); + if( nIndex ) + aIndex += nIndex; + maPolygons.insert(aIndex, rPolyPolygon.begin(), rPolyPolygon.end()); + } + + void remove(sal_uInt32 nIndex, sal_uInt32 nCount) + { + if(nCount) + { + // remove polygon data + basegfx::B2DPolygonVector::iterator aStart(maPolygons.begin()); + aStart += nIndex; + const basegfx::B2DPolygonVector::iterator aEnd(aStart + nCount); + + maPolygons.erase(aStart, aEnd); + } + } + + sal_uInt32 count() const + { + return maPolygons.size(); + } + + void setClosed(bool bNew) + { + for(basegfx::B2DPolygon & rPolygon : maPolygons) + { + rPolygon.setClosed(bNew); + } + } + + void flip() + { + for (auto& aPolygon : maPolygons) + aPolygon.flip(); + } + + void removeDoublePoints() + { + for (auto& aPolygon : maPolygons) + aPolygon.removeDoublePoints(); + } + + void transform(const basegfx::B2DHomMatrix& rMatrix) + { + for (auto& aPolygon : maPolygons) + aPolygon.transform(rMatrix); + } + + void makeUnique() + { + for (auto& aPolygon : maPolygons) + aPolygon.makeUnique(); + } + + const basegfx::B2DPolygon* begin() const + { + if (maPolygons.empty()) + return nullptr; + else + return maPolygons.data(); + } + + const basegfx::B2DPolygon* end() const + { + if (maPolygons.empty()) + return nullptr; + else + return maPolygons.data() + maPolygons.size(); + } + + basegfx::B2DPolygon* begin() + { + if (maPolygons.empty()) + return nullptr; + else + return maPolygons.data(); + } + + basegfx::B2DPolygon* end() + { + if (maPolygons.empty()) + return nullptr; + else + return maPolygons.data() + maPolygons.size(); + } +}; + + static o3tl::cow_wrapper<ImplB2DPolyPolygon> DEFAULT; + + B2DPolyPolygon::B2DPolyPolygon() : + mpPolyPolygon(DEFAULT) {} + + B2DPolyPolygon::B2DPolyPolygon(const B2DPolyPolygon&) = default; + + B2DPolyPolygon::B2DPolyPolygon(B2DPolyPolygon&&) = default; + + B2DPolyPolygon::B2DPolyPolygon(const B2DPolygon& rPolygon) : + mpPolyPolygon( ImplB2DPolyPolygon(rPolygon) ) + { + } + + B2DPolyPolygon::~B2DPolyPolygon() = default; + + B2DPolyPolygon& B2DPolyPolygon::operator=(const B2DPolyPolygon&) = default; + + B2DPolyPolygon& B2DPolyPolygon::operator=(B2DPolyPolygon&&) = default; + + void B2DPolyPolygon::makeUnique() + { + mpPolyPolygon.make_unique(); + mpPolyPolygon->makeUnique(); + } + + bool B2DPolyPolygon::operator==(const B2DPolyPolygon& rPolyPolygon) const + { + if(mpPolyPolygon.same_object(rPolyPolygon.mpPolyPolygon)) + return true; + + return ((*mpPolyPolygon) == (*rPolyPolygon.mpPolyPolygon)); + } + + bool B2DPolyPolygon::operator!=(const B2DPolyPolygon& rPolyPolygon) const + { + return !((*this) == rPolyPolygon); + } + + sal_uInt32 B2DPolyPolygon::count() const + { + return mpPolyPolygon->count(); + } + + B2DPolygon const & B2DPolyPolygon::getB2DPolygon(sal_uInt32 nIndex) const + { + OSL_ENSURE(nIndex < mpPolyPolygon->count(), "B2DPolyPolygon access outside range (!)"); + + return mpPolyPolygon->getB2DPolygon(nIndex); + } + + void B2DPolyPolygon::setB2DPolygon(sal_uInt32 nIndex, const B2DPolygon& rPolygon) + { + OSL_ENSURE(nIndex < std::as_const(mpPolyPolygon)->count(), "B2DPolyPolygon access outside range (!)"); + + if(getB2DPolygon(nIndex) != rPolygon) + mpPolyPolygon->setB2DPolygon(nIndex, rPolygon); + } + + bool B2DPolyPolygon::areControlPointsUsed() const + { + for(sal_uInt32 a(0); a < mpPolyPolygon->count(); a++) + { + const B2DPolygon& rPolygon = mpPolyPolygon->getB2DPolygon(a); + + if(rPolygon.areControlPointsUsed()) + { + return true; + } + } + + return false; + } + + void B2DPolyPolygon::insert(sal_uInt32 nIndex, const B2DPolygon& rPolygon, sal_uInt32 nCount) + { + OSL_ENSURE(nIndex <= std::as_const(mpPolyPolygon)->count(), "B2DPolyPolygon Insert outside range (!)"); + + if(nCount) + mpPolyPolygon->insert(nIndex, rPolygon, nCount); + } + + void B2DPolyPolygon::append(const B2DPolygon& rPolygon, sal_uInt32 nCount) + { + if(nCount) + mpPolyPolygon->insert(std::as_const(mpPolyPolygon)->count(), rPolygon, nCount); + } + + B2DPolyPolygon B2DPolyPolygon::getDefaultAdaptiveSubdivision() const + { + B2DPolyPolygon aRetval; + + for(sal_uInt32 a(0); a < mpPolyPolygon->count(); a++) + { + aRetval.append(mpPolyPolygon->getB2DPolygon(a).getDefaultAdaptiveSubdivision()); + } + + return aRetval; + } + + B2DRange B2DPolyPolygon::getB2DRange() const + { + B2DRange aRetval; + + for(sal_uInt32 a(0); a < mpPolyPolygon->count(); a++) + { + aRetval.expand(mpPolyPolygon->getB2DPolygon(a).getB2DRange()); + } + + return aRetval; + } + + void B2DPolyPolygon::insert(sal_uInt32 nIndex, const B2DPolyPolygon& rPolyPolygon) + { + OSL_ENSURE(nIndex <= std::as_const(mpPolyPolygon)->count(), "B2DPolyPolygon Insert outside range (!)"); + + if(rPolyPolygon.count()) + mpPolyPolygon->insert(nIndex, rPolyPolygon); + } + + void B2DPolyPolygon::append(const B2DPolyPolygon& rPolyPolygon) + { + if(rPolyPolygon.count()) + mpPolyPolygon->insert(std::as_const(mpPolyPolygon)->count(), rPolyPolygon); + } + + void B2DPolyPolygon::remove(sal_uInt32 nIndex, sal_uInt32 nCount) + { + OSL_ENSURE(nIndex + nCount <= std::as_const(mpPolyPolygon)->count(), "B2DPolyPolygon Remove outside range (!)"); + + if(nCount) + mpPolyPolygon->remove(nIndex, nCount); + } + + void B2DPolyPolygon::clear() + { + *mpPolyPolygon = ImplB2DPolyPolygon(); + } + + bool B2DPolyPolygon::isClosed() const + { + bool bRetval(true); + + // PolyPOlygon is closed when all contained Polygons are closed or + // no Polygon exists. + for(sal_uInt32 a(0); bRetval && a < mpPolyPolygon->count(); a++) + { + if(!mpPolyPolygon->getB2DPolygon(a).isClosed()) + { + bRetval = false; + } + } + + return bRetval; + } + + void B2DPolyPolygon::setClosed(bool bNew) + { + if(bNew != isClosed()) + mpPolyPolygon->setClosed(bNew); + } + + void B2DPolyPolygon::flip() + { + if(std::as_const(mpPolyPolygon)->count()) + { + mpPolyPolygon->flip(); + } + } + + bool B2DPolyPolygon::hasDoublePoints() const + { + bool bRetval(false); + + for(sal_uInt32 a(0); !bRetval && a < mpPolyPolygon->count(); a++) + { + if(mpPolyPolygon->getB2DPolygon(a).hasDoublePoints()) + { + bRetval = true; + } + } + + return bRetval; + } + + void B2DPolyPolygon::removeDoublePoints() + { + if(hasDoublePoints()) + mpPolyPolygon->removeDoublePoints(); + } + + void B2DPolyPolygon::transform(const B2DHomMatrix& rMatrix) + { + if(std::as_const(mpPolyPolygon)->count() && !rMatrix.isIdentity()) + { + mpPolyPolygon->transform(rMatrix); + } + } + + const B2DPolygon* B2DPolyPolygon::begin() const + { + return mpPolyPolygon->begin(); + } + + const B2DPolygon* B2DPolyPolygon::end() const + { + return mpPolyPolygon->end(); + } + + B2DPolygon* B2DPolyPolygon::begin() + { + return mpPolyPolygon->begin(); + } + + B2DPolygon* B2DPolyPolygon::end() + { + return mpPolyPolygon->end(); + } + + void B2DPolyPolygon::addOrReplaceSystemDependentDataInternal(SystemDependentData_SharedPtr& rData) const + { + // Need to get ImplB2DPolyPolygon* from cow_wrapper *without* + // calling make_unique() here - we do not want to + // 'modify' the ImplB2DPolyPolygon, but add buffered data that + // is valid for all referencing instances + const B2DPolyPolygon* pMe(this); + const ImplB2DPolyPolygon* pMyImpl(pMe->mpPolyPolygon.get()); + + const_cast<ImplB2DPolyPolygon*>(pMyImpl)->addOrReplaceSystemDependentData(rData); + } + + SystemDependentData_SharedPtr B2DPolyPolygon::getSystemDependantDataInternal(size_t hash_code) const + { + return mpPolyPolygon->getSystemDependentData(hash_code); + } + +} // end of namespace basegfx + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |