sw/source/core/crsr/overlayrangesoutline.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 #include "overlayrangesoutline.hxx"
  20 #include <svx/sdr/overlay/overlaymanager.hxx>
  21 #include <basegfx/polygon/b2dpolygon.hxx>
  22 #include <basegfx/polygon/b2dpolypolygon.hxx>
  23 #include <basegfx/polygon/b2dpolygontools.hxx>
  24 #include <basegfx/polygon/b2dpolypolygoncutter.hxx>
  25 #include <drawinglayer/primitive2d/PolyPolygonHairlinePrimitive2D.hxx>
  26
  27 namespace
  28 {
  29     // combine ranges geometrically to a single, ORed polygon
  30     basegfx::B2DPolyPolygon impCombineRangesToPolyPolygon(const std::vector< basegfx::B2DRange >& rRanges)
  31     {
  32         const sal_uInt32 nCount(rRanges.size());
  33         basegfx::B2DPolyPolygon aRetval;
  34
  35         for(sal_uInt32 a(0); a < nCount; a++)
  36         {
  37             const basegfx::B2DPolygon aDiscretePolygon(basegfx::utils::createPolygonFromRect(rRanges[a]));
  38
  39             if(0 == a)
  40             {
  41                 aRetval.append(aDiscretePolygon);
  42             }
  43             else
  44             {
  45                 aRetval = basegfx::utils::solvePolygonOperationOr(aRetval, basegfx::B2DPolyPolygon(aDiscretePolygon));
  46             }
  47         }
  48
  49         return aRetval;
  50     }
  51 }
  52
  53 namespace sw::overlay
  54 {
  55         drawinglayer::primitive2d::Primitive2DContainer OverlayRangesOutline::createOverlayObjectPrimitive2DSequence()
  56         {
  57             drawinglayer::primitive2d::Primitive2DContainer aRetval;
  58             const sal_uInt32 nCount(getRanges().size());
  59
  60             if( nCount )
  61             {
  62                 const basegfx::BColor aRGBColor(getBaseColor().getBColor());
  63                 basegfx::B2DPolyPolygon aPolyPolygon(impCombineRangesToPolyPolygon(getRanges()));
  64                 const drawinglayer::primitive2d::Primitive2DReference aOutline(
  65                     new drawinglayer::primitive2d::PolyPolygonHairlinePrimitive2D(
  66                     std::move(aPolyPolygon),
  67                     aRGBColor));
  68
  69                 aRetval.resize(1);
  70                 aRetval[0] = aOutline;
  71             }
  72
  73             return aRetval;
  74         }
  75
  76         OverlayRangesOutline::OverlayRangesOutline(
  77             const Color& rColor,
  78             std::vector< basegfx::B2DRange >&& rRanges )
  79             : sdr::overlay::OverlayObject(rColor)
  80             , maRanges(std::move(rRanges))
  81         {
  82             // no AA for highlight overlays
  83             allowAntiAliase(false);
  84         }
  85
  86         OverlayRangesOutline::~OverlayRangesOutline()
  87         {
  88             if( getOverlayManager() )
  89             {
  90                 getOverlayManager()->remove(*this);
  91             }
  92         }
  93
  94         void OverlayRangesOutline::setRanges(std::vector< basegfx::B2DRange >&& rNew)
  95         {
  96             if(rNew != maRanges)
  97             {
  98                 maRanges = std::move(rNew);
  99                 objectChange();
 100             }
 101         }
 102 } // end of namespace sw::overlay
 103
 104 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */