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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 : #ifndef INCLUDED_SVX_XPOLY_HXX
20 : #define INCLUDED_SVX_XPOLY_HXX
21 :
22 : #include <basegfx/polygon/b2dpolypolygon.hxx>
23 : #include <svx/svxdllapi.h>
24 :
25 : class Point;
26 : class Rectangle;
27 : class SvStream;
28 : class Polygon;
29 : namespace tools { class PolyPolygon; }
30 : class OutputDevice;
31 :
32 : #define XPOLYPOLY_APPEND 0xFFFF
33 : #define XPOLY_APPEND 0xFFFF
34 :
35 : #define XPOLY_MAXPOINTS 0xFFF0 /* Let space for the 32-Bit systems too */
36 :
37 : // point-styles in XPolygon:
38 : // NORMAL : start-/endpoint of a curve or a line
39 : // SMOOTH : smooth transition between curves
40 : // SYMMTR : smooth and symmetrical transition between curves
41 : // CONTROL: control handles of a Bezier curve
42 :
43 : enum XPolyFlags { XPOLY_NORMAL, XPOLY_SMOOTH, XPOLY_CONTROL, XPOLY_SYMMTR };
44 :
45 : // Class XPolygon;has a point-array and a flag-array, which contains information about a particular point
46 :
47 : class ImpXPolygon;
48 :
49 : class SVX_DLLPUBLIC XPolygon
50 : {
51 : protected:
52 : ImpXPolygon* pImpXPolygon;
53 :
54 : // check ImpXPolygon-ReferenceCount and decouple if necessary
55 : void CheckReference();
56 :
57 : // auxiliary functions for Bezier conversion
58 : void SubdivideBezier(sal_uInt16 nPos, bool bCalcFirst, double fT);
59 : void GenBezArc(const Point& rCenter, long nRx, long nRy,
60 : long nXHdl, long nYHdl, sal_uInt16 nStart, sal_uInt16 nEnd,
61 : sal_uInt16 nQuad, sal_uInt16 nFirst);
62 : bool CheckAngles(sal_uInt16& nStart, sal_uInt16 nEnd, sal_uInt16& nA1, sal_uInt16& nA2);
63 :
64 : public:
65 : XPolygon( sal_uInt16 nSize=16, sal_uInt16 nResize=16 );
66 : XPolygon( const XPolygon& rXPoly );
67 : XPolygon( const Polygon& rPoly );
68 : XPolygon( const Rectangle& rRect, long nRx = 0, long nRy = 0 );
69 : XPolygon( const Point& rCenter, long nRx, long nRy,
70 : sal_uInt16 nStartAngle = 0, sal_uInt16 nEndAngle = 3600,
71 : bool bClose = true );
72 :
73 : ~XPolygon();
74 :
75 : sal_uInt16 GetSize() const;
76 :
77 : void SetPointCount( sal_uInt16 nPoints );
78 : sal_uInt16 GetPointCount() const;
79 :
80 : void Insert( sal_uInt16 nPos, const Point& rPt, XPolyFlags eFlags );
81 : void Insert( sal_uInt16 nPos, const XPolygon& rXPoly );
82 : void Remove( sal_uInt16 nPos, sal_uInt16 nCount );
83 : void Move( long nHorzMove, long nVertMove );
84 : Rectangle GetBoundRect() const;
85 :
86 : const Point& operator[]( sal_uInt16 nPos ) const;
87 : Point& operator[]( sal_uInt16 nPos );
88 : XPolygon& operator=( const XPolygon& rXPoly );
89 : bool operator==( const XPolygon& rXPoly ) const;
90 : bool operator!=( const XPolygon& rXPoly ) const;
91 :
92 : XPolyFlags GetFlags( sal_uInt16 nPos ) const;
93 : void SetFlags( sal_uInt16 nPos, XPolyFlags eFlags );
94 : bool IsControl(sal_uInt16 nPos) const;
95 : bool IsSmooth(sal_uInt16 nPos) const;
96 :
97 : // distance between two points
98 : double CalcDistance(sal_uInt16 nP1, sal_uInt16 nP2);
99 :
100 : // Bezier conversion
101 : void CalcSmoothJoin(sal_uInt16 nCenter, sal_uInt16 nDrag, sal_uInt16 nPnt);
102 : void CalcTangent(sal_uInt16 nCenter, sal_uInt16 nPrev, sal_uInt16 nNext);
103 : void PointsToBezier(sal_uInt16 nFirst);
104 :
105 : // transformations
106 : void Translate(const Point& rTrans);
107 : void Scale(double fSx, double fSy);
108 : void Distort(const Rectangle& rRefRect, const XPolygon& rDistortedRect);
109 :
110 : // #116512# convert to basegfx::B2DPolygon and return
111 : basegfx::B2DPolygon getB2DPolygon() const;
112 :
113 : // #116512# constructor to convert from basegfx::B2DPolygon
114 : // #i76339# made explicit
115 : explicit XPolygon(const basegfx::B2DPolygon& rPolygon);
116 : };
117 :
118 : // Class XPolyPolygon; like PolyPolygon, composed of XPolygons instead of Polygons
119 :
120 : class ImpXPolyPolygon;
121 :
122 : class SVX_DLLPUBLIC XPolyPolygon
123 : {
124 : protected:
125 : ImpXPolyPolygon* pImpXPolyPolygon;
126 :
127 : // check ImpXPolyPolygon-ReferenceCount and decouple if necessary
128 : void CheckReference();
129 :
130 : public:
131 : XPolyPolygon( sal_uInt16 nInitSize = 16, sal_uInt16 nResize = 16 );
132 : XPolyPolygon( const XPolyPolygon& rXPolyPoly );
133 :
134 : ~XPolyPolygon();
135 :
136 : void Insert( const XPolygon& rXPoly,
137 : sal_uInt16 nPos = XPOLYPOLY_APPEND );
138 : void Insert( const XPolyPolygon& rXPoly,
139 : sal_uInt16 nPos=XPOLYPOLY_APPEND );
140 : XPolygon Remove( sal_uInt16 nPos );
141 : const XPolygon& GetObject( sal_uInt16 nPos ) const;
142 :
143 : void Clear();
144 : sal_uInt16 Count() const;
145 :
146 : Rectangle GetBoundRect() const;
147 :
148 6 : const XPolygon& operator[]( sal_uInt16 nPos ) const
149 6 : { return GetObject( nPos ); }
150 : XPolygon& operator[]( sal_uInt16 nPos );
151 :
152 : XPolyPolygon& operator=( const XPolyPolygon& rXPolyPoly );
153 : bool operator==( const XPolyPolygon& rXPolyPoly ) const;
154 : bool operator!=( const XPolyPolygon& rXPolyPoly ) const;
155 :
156 : // transformations
157 : void Distort(const Rectangle& rRefRect, const XPolygon& rDistortedRect);
158 :
159 : // #116512# convert to basegfx::B2DPolyPolygon and return
160 : basegfx::B2DPolyPolygon getB2DPolyPolygon() const;
161 :
162 : // #116512# constructor to convert from basegfx::B2DPolyPolygon
163 : // #i76339# made explicit
164 : explicit XPolyPolygon(const basegfx::B2DPolyPolygon& rPolyPolygon);
165 : };
166 :
167 : #endif // INCLUDED_SVX_XPOLY_HXX
168 :
169 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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