basegfx/source/range/b2dpolyrange.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <basegfx/range/b2dpolyrange.hxx>
  21
  22 #include <basegfx/range/b2drange.hxx>
  23 #include <basegfx/range/b2drangeclipper.hxx>
  24 #include <basegfx/polygon/b2dpolypolygon.hxx>
  25
  26 #include <algorithm>
  27 #include <vector>
  28
  29 namespace basegfx
  30 {
  31     class ImplB2DPolyRange
  32     {
  33     public:
  34         ImplB2DPolyRange()
  35         {}
  36
  37         bool operator==(const ImplB2DPolyRange& rRHS) const
  38         {
  39             return maRanges == rRHS.maRanges && maOrient == rRHS.maOrient;
  40         }
  41
  42         sal_uInt32 count() const
  43         {
  44             return maRanges.size();
  45         }
  46
  47         B2DPolyRange::ElementType getElement(sal_uInt32 nIndex) const
  48         {
  49             return std::make_tuple(maRanges[nIndex], maOrient[nIndex]);
  50         }
  51
  52         void appendElement(const B2DRange& rRange, B2VectorOrientation eOrient)
  53         {
  54             maRanges.push_back(rRange);
  55             maOrient.push_back(eOrient);
  56             maBounds.expand(rRange);
  57         }
  58
  59         void clear()
  60         {
  61             std::vector<B2DRange>().swap(maRanges);
  62             std::vector<B2VectorOrientation>().swap(maOrient);
  63
  64             maBounds.reset();
  65         }
  66
  67         bool overlaps( const B2DRange& rRange ) const
  68         {
  69             if( !maBounds.overlaps( rRange ) )
  70                 return false;
  71
  72             const std::vector<B2DRange>::const_iterator aEnd( maRanges.end() );
  73             return std::any_of( maRanges.begin(),
  74                                  aEnd,
  75                                  [&rRange](const B2DRange& aRange) { return aRange.overlaps(rRange); } );
  76         }
  77
  78         B2DPolyPolygon solveCrossovers() const
  79         {
  80             return utils::solveCrossovers(maRanges,maOrient);
  81         }
  82
  83         void transform(const basegfx::B2DHomMatrix& rTranslate)
  84         {
  85             maBounds.transform(rTranslate);
  86             for (auto &a : maRanges)
  87                 a.transform(rTranslate);
  88         }
  89
  90     private:
  91         B2DRange                         maBounds;
  92         std::vector<B2DRange>            maRanges;
  93         std::vector<B2VectorOrientation> maOrient;
  94     };
  95
  96     B2DPolyRange::B2DPolyRange() = default;
  97
  98     B2DPolyRange::~B2DPolyRange() = default;
  99
 100     B2DPolyRange::B2DPolyRange( const B2DPolyRange& ) = default;
 101
 102     B2DPolyRange& B2DPolyRange::operator=( const B2DPolyRange& ) = default;
 103
 104     bool B2DPolyRange::operator==(const B2DPolyRange& rRange) const
 105     {
 106         if(mpImpl.same_object(rRange.mpImpl))
 107             return true;
 108
 109         return ((*mpImpl) == (*rRange.mpImpl));
 110     }
 111
 112     sal_uInt32 B2DPolyRange::count() const
 113     {
 114         return mpImpl->count();
 115     }
 116
 117     B2DPolyRange::ElementType B2DPolyRange::getElement(sal_uInt32 nIndex) const
 118     {
 119         return mpImpl->getElement(nIndex);
 120     }
 121
 122     void B2DPolyRange::appendElement(const B2DRange& rRange, B2VectorOrientation eOrient)
 123     {
 124         mpImpl->appendElement(rRange, eOrient);
 125     }
 126
 127     void B2DPolyRange::clear()
 128     {
 129         mpImpl->clear();
 130     }
 131
 132     bool B2DPolyRange::overlaps( const B2DRange& rRange ) const
 133     {
 134         return mpImpl->overlaps(rRange);
 135     }
 136
 137     void B2DPolyRange::transform(const basegfx::B2DHomMatrix& rTranslate)
 138     {
 139         mpImpl->transform(rTranslate);
 140     }
 141
 142     B2DPolyPolygon B2DPolyRange::solveCrossovers() const
 143     {
 144         return mpImpl->solveCrossovers();
 145     }
 146 } // end of namespace basegfx
 147
 148 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */