include/svx/xpoly.hxx

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  19 #ifndef INCLUDED_SVX_XPOLY_HXX
  20 #define INCLUDED_SVX_XPOLY_HXX
  21
  22 #include <basegfx/polygon/b2dpolypolygon.hxx>
  23 #include <svx/svxdllapi.h>
  24 #include <o3tl/cow_wrapper.hxx>
  25 #include <tools/poly.hxx>
  26
  27 class Point;
  28 namespace tools { class Rectangle; }
  29 class SvStream;
  30 namespace tools {
  31     class Polygon;
  32     class PolyPolygon;
  33 }
  34 class OutputDevice;
  35
  36 #define XPOLYPOLY_APPEND     0xFFFF
  37 #define XPOLY_APPEND         0xFFFF
  38
  39
  40 // Class XPolygon has a point-array and a flag-array, which contains information about a particular point
  41
  42 class ImpXPolygon;
  43
  44 class SVX_DLLPUBLIC XPolygon
  45 {
  46 protected:
  47     o3tl::cow_wrapper< ImpXPolygon > pImpXPolygon;
  48
  49     // auxiliary functions for Bezier conversion
  50     void    SubdivideBezier(sal_uInt16 nPos, bool bCalcFirst, double fT);
  51     void    GenBezArc(const Point& rCenter, long nRx, long nRy,
  52                       long nXHdl, long nYHdl, sal_uInt16 nStart, sal_uInt16 nEnd,
  53                       sal_uInt16 nQuad, sal_uInt16 nFirst);
  54     static bool CheckAngles(sal_uInt16& nStart, sal_uInt16 nEnd, sal_uInt16& nA1, sal_uInt16& nA2);
  55
  56 public:
  57     XPolygon( sal_uInt16 nSize=16 );
  58     XPolygon( const XPolygon& rXPoly );
  59     XPolygon( XPolygon&& rXPoly );
  60     XPolygon( const tools::Polygon& rPoly );
  61     XPolygon( const tools::Rectangle& rRect, long nRx = 0, long nRy = 0 );
  62     XPolygon( const Point& rCenter, long nRx, long nRy,
  63               sal_uInt16 nStartAngle = 0, sal_uInt16 nEndAngle = 3600,
  64               bool bClose = true );
  65
  66     ~XPolygon();
  67
  68     sal_uInt16      GetSize() const;
  69
  70     void        SetPointCount( sal_uInt16 nPoints );
  71     sal_uInt16      GetPointCount() const;
  72
  73     void        Insert( sal_uInt16 nPos, const Point& rPt, PolyFlags eFlags );
  74     void        Insert( sal_uInt16 nPos, const XPolygon& rXPoly );
  75     void        Remove( sal_uInt16 nPos, sal_uInt16 nCount );
  76     void        Move( long nHorzMove, long nVertMove );
  77     tools::Rectangle   GetBoundRect() const;
  78
  79     const Point&    operator[]( sal_uInt16 nPos ) const;
  80           Point&    operator[]( sal_uInt16 nPos );
  81     XPolygon&       operator=( const XPolygon& rXPoly );
  82     XPolygon&       operator=( XPolygon&& rXPoly );
  83     bool            operator==( const XPolygon& rXPoly ) const;
  84
  85     PolyFlags  GetFlags( sal_uInt16 nPos ) const;
  86     void        SetFlags( sal_uInt16 nPos, PolyFlags eFlags );
  87     bool        IsControl(sal_uInt16 nPos) const;
  88     bool        IsSmooth(sal_uInt16 nPos) const;
  89
  90     // distance between two points
  91     double  CalcDistance(sal_uInt16 nP1, sal_uInt16 nP2);
  92
  93     // Bezier conversion
  94     void CalcSmoothJoin(sal_uInt16 nCenter, sal_uInt16 nDrag, sal_uInt16 nPnt);
  95     void CalcTangent(sal_uInt16 nCenter, sal_uInt16 nPrev, sal_uInt16 nNext);
  96     void PointsToBezier(sal_uInt16 nFirst);
  97
  98     // transformations
  99     void Scale(double fSx, double fSy);
 100     void Distort(const tools::Rectangle& rRefRect, const XPolygon& rDistortedRect);
 101
 102     // #116512# convert to basegfx::B2DPolygon and return
 103     basegfx::B2DPolygon getB2DPolygon() const;
 104
 105     // #116512# constructor to convert from basegfx::B2DPolygon
 106      // #i76339# made explicit
 107      explicit XPolygon(const basegfx::B2DPolygon& rPolygon);
 108 };
 109
 110 // Class XPolyPolygon; like PolyPolygon, composed of XPolygons instead of Polygons
 111
 112 class ImpXPolyPolygon;
 113
 114 class SVX_DLLPUBLIC XPolyPolygon
 115 {
 116 protected:
 117     o3tl::cow_wrapper< ImpXPolyPolygon > pImpXPolyPolygon;
 118
 119 public:
 120                     XPolyPolygon();
 121                     XPolyPolygon( const XPolyPolygon& rXPolyPoly );
 122                     XPolyPolygon( XPolyPolygon&& rXPolyPoly );
 123
 124                     ~XPolyPolygon();
 125
 126     void            Insert( const XPolygon& rXPoly );
 127     void            Insert( const XPolyPolygon& rXPoly );
 128     XPolygon        Remove( sal_uInt16 nPos );
 129     const XPolygon& GetObject( sal_uInt16 nPos ) const;
 130
 131     void            Clear();
 132     sal_uInt16          Count() const;
 133
 134     tools::Rectangle       GetBoundRect() const;
 135
 136     const XPolygon& operator[]( sal_uInt16 nPos ) const
 137                         { return GetObject( nPos ); }
 138     XPolygon&       operator[]( sal_uInt16 nPos );
 139
 140     XPolyPolygon&   operator=( const XPolyPolygon& rXPolyPoly );
 141     XPolyPolygon&   operator=( XPolyPolygon&& rXPolyPoly );
 142
 143     // transformations
 144     void Distort(const tools::Rectangle& rRefRect, const XPolygon& rDistortedRect);
 145
 146     // #116512# convert to basegfx::B2DPolyPolygon and return
 147     basegfx::B2DPolyPolygon getB2DPolyPolygon() const;
 148
 149     // #116512# constructor to convert from basegfx::B2DPolyPolygon
 150      // #i76339# made explicit
 151      explicit XPolyPolygon(const basegfx::B2DPolyPolygon& rPolyPolygon);
 152 };
 153
 154 #endif // INCLUDED_SVX_XPOLY_HXX
 155
 156 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */