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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
impCombineRangesToPolyPolygon(const std::vector<basegfx::B2DRange> & rRanges)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 {
createOverlayObjectPrimitive2DSequence()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                 const basegfx::B2DPolyPolygon aPolyPolygon(impCombineRangesToPolyPolygon(getRanges()));
64                 const drawinglayer::primitive2d::Primitive2DReference aOutline(
65                     new drawinglayer::primitive2d::PolyPolygonHairlinePrimitive2D(
66                     aPolyPolygon,
67                     aRGBColor));
68 
69                 aRetval.resize(1);
70                 aRetval[0] = aOutline;
71             }
72 
73             return aRetval;
74         }
75 
OverlayRangesOutline(const Color & rColor,const std::vector<basegfx::B2DRange> & rRanges)76         OverlayRangesOutline::OverlayRangesOutline(
77             const Color& rColor,
78             const std::vector< basegfx::B2DRange >& rRanges )
79             : sdr::overlay::OverlayObject(rColor)
80             , maRanges(rRanges)
81         {
82             // no AA for highlight overlays
83             allowAntiAliase(false);
84         }
85 
~OverlayRangesOutline()86         OverlayRangesOutline::~OverlayRangesOutline()
87         {
88             if( getOverlayManager() )
89             {
90                 getOverlayManager()->remove(*this);
91             }
92         }
93 
setRanges(const std::vector<basegfx::B2DRange> & rNew)94         void OverlayRangesOutline::setRanges(const std::vector< basegfx::B2DRange >& rNew)
95         {
96             if(rNew != maRanges)
97             {
98                 maRanges = rNew;
99                 objectChange();
100             }
101         }
102 } // end of namespace sw::overlay
103 
104 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
105