1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#ifndef _SV_REGION_HXX
#define _SV_REGION_HXX
#include <tools/gen.hxx>
#include <vcl/sv.h>
#include <vcl/dllapi.h>
#include <basegfx/polygon/b2dpolypolygon.hxx>
class ImplRegion;
class ImplRegionBand;
class Polygon;
class PolyPolygon;
struct ImplRegionInfo;
// --------------
// - RegionType -
// --------------
enum RegionType { REGION_NULL, REGION_EMPTY, REGION_RECTANGLE, REGION_COMPLEX };
enum RegionOverlapType { REGION_INSIDE, REGION_OVER, REGION_OUTSIDE };
typedef long RegionHandle;
// ----------
// - Region -
// ----------
class VCL_DLLPUBLIC Region
{
friend class OutputDevice;
friend class Window;
friend class Bitmap;
private:
ImplRegion* mpImplRegion;
SAL_DLLPRIVATE void ImplCopyData();
SAL_DLLPRIVATE void ImplCreateRectRegion( const Rectangle& rRect );
SAL_DLLPRIVATE void ImplCreatePolyPolyRegion( const PolyPolygon& rPolyPoly );
SAL_DLLPRIVATE void ImplPolyPolyRegionToBandRegionFunc();
SAL_DLLPRIVATE inline void ImplPolyPolyRegionToBandRegion();
SAL_DLLPRIVATE const ImplRegion* ImplGetImplRegion() const { return mpImplRegion; }
SAL_DLLPRIVATE ImplRegion* ImplGetImplRegion() { return mpImplRegion; }
SAL_DLLPRIVATE void ImplBeginAddRect( );
SAL_DLLPRIVATE sal_Bool ImplAddRect( const Rectangle& rRect );
SAL_DLLPRIVATE void ImplEndAddRect( );
SAL_DLLPRIVATE void ImplIntersectWithPolyPolygon( const Region& );
SAL_DLLPRIVATE void ImplExcludePolyPolygon( const Region& );
SAL_DLLPRIVATE void ImplUnionPolyPolygon( const Region& );
SAL_DLLPRIVATE void ImplXOrPolyPolygon( const Region& );
public: // public within vcl
VCL_PLUGIN_PUBLIC bool ImplGetFirstRect( ImplRegionInfo& rImplRegionInfo,
long& nX, long& nY, long& nWidth, long& nHeight ) const;
VCL_PLUGIN_PUBLIC bool ImplGetNextRect( ImplRegionInfo& rImplRegionInfo,
long& nX, long& nY, long& nWidth, long& nHeight ) const;
#ifdef DBG_UTIL
friend const char* ImplDbgTestRegion( const void* pObj );
#endif
public:
Region();
Region( RegionType eType );
Region( const Rectangle& rRect );
Region( const Polygon& rPolygon );
Region( const PolyPolygon& rPolyPoly );
Region( const basegfx::B2DPolyPolygon& );
Region( const Region& rRegion );
~Region();
void Move( long nHorzMove, long nVertMove );
void Scale( double fScaleX, double fScaleY );
void Union( const Rectangle& rRegion );
void Intersect( const Rectangle& rRegion );
void Exclude( const Rectangle& rRegion );
void XOr( const Rectangle& rRegion );
void Union( const Region& rRegion );
void Intersect( const Region& rRegion );
void Exclude( const Region& rRegion );
void XOr( const Region& rRegion );
RegionType GetType() const;
sal_Bool IsEmpty() const { return GetType() == REGION_EMPTY; };
sal_Bool IsNull() const { return GetType() == REGION_NULL; };
void SetEmpty();
void SetNull();
Rectangle GetBoundRect() const;
sal_Bool HasPolyPolygon() const;
PolyPolygon GetPolyPolygon() const;
// returns an empty polypolygon in case HasPolyPolygon is sal_False
const basegfx::B2DPolyPolygon GetB2DPolyPolygon() const;
// returns a PolyPolygon either copied from the set PolyPolygon region
// or created from the constituent rectangles
basegfx::B2DPolyPolygon ConvertToB2DPolyPolygon();
sal_uLong GetRectCount() const;
RegionHandle BeginEnumRects();
sal_Bool GetEnumRects( RegionHandle hRegionHandle, Rectangle& rRect );
sal_Bool GetNextEnumRect( RegionHandle hRegionHandle, Rectangle& rRect )
{ return GetEnumRects( hRegionHandle, rRect ); }
void EndEnumRects( RegionHandle hRegionHandle );
sal_Bool IsInside( const Point& rPoint ) const;
sal_Bool IsInside( const Rectangle& rRect ) const;
sal_Bool IsOver( const Rectangle& rRect ) const;
Region& operator=( const Region& rRegion );
Region& operator=( const Rectangle& rRect );
sal_Bool operator==( const Region& rRegion ) const;
sal_Bool operator!=( const Region& rRegion ) const
{ return !(Region::operator==( rRegion )); }
friend VCL_DLLPUBLIC SvStream& operator>>( SvStream& rIStm, Region& rRegion );
friend VCL_DLLPUBLIC SvStream& operator<<( SvStream& rOStm, const Region& rRegion );
/* workaround: faster conversion for PolyPolygons
* if half of the Polygons contained in rPolyPoly are actually
* rectangles, then the returned Region will be constructed by
* XOr'ing the contained Polygons together; in the case of
* only Rectangles this can be up to eight times faster than
* Region( const PolyPolygon& ).
* Caution: this is only useful if the Region is known to be
* changed to rectangles; e.g. if being set as clip region
*/
static Region GetRegionFromPolyPolygon( const PolyPolygon& rPolyPoly );
};
#endif // _SV_REGION_HXX
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|