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
|
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2008 by Sun Microsystems, Inc.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: b2dmultirange.hxx,v $
* $Revision: 1.5 $
*
* 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 _BGFX_RANGE_B2DMULTIRANGE_HXX
#define _BGFX_RANGE_B2DMULTIRANGE_HXX
#include <o3tl/cow_wrapper.hxx>
#include <memory>
namespace basegfx
{
class B2DTuple;
class B2DRange;
class B2DPolyPolygon;
class ImplB2DMultiRange;
/** Multiple ranges in one object.
This class combines multiple ranges in one object, providing a
total, enclosing range for it.
You can use this class e.g. when updating views containing
rectangular objects. Add each modified object to a
B2DMultiRange, then test each viewable object against
intersection with the multi range.
*/
class B2DMultiRange
{
public:
B2DMultiRange();
~B2DMultiRange();
/** Create a multi range with exactly one containing range
*/
explicit B2DMultiRange( const B2DRange& rRange );
B2DMultiRange( const B2DMultiRange& );
B2DMultiRange& operator=( const B2DMultiRange& );
/** Check whether range is empty.
@return true, if this object either contains no ranges at
all, or all contained ranges are empty.
*/
bool isEmpty() const;
/** Reset to empty.
After this call, the object will not contain any ranges,
and isEmpty() will return true.
*/
void reset();
/** Test whether given tuple is inside one or more of the
included ranges.
*/
bool isInside( const B2DTuple& rTuple ) const;
/** Test whether given range is inside one or more of the
included ranges.
*/
bool isInside( const B2DRange& rRange ) const;
/** Test whether given range overlaps one or more of the
included ranges.
*/
bool overlaps( const B2DRange& rRange ) const;
/** Add given range to the number of contained ranges.
*/
void addRange( const B2DRange& rRange );
/** Get overall bound rect for all included ranges.
*/
B2DRange getBounds() const;
/** Request poly-polygon representing the added ranges.
This method creates a poly-polygon, consisting exactly out
of the contained ranges.
*/
B2DPolyPolygon getPolyPolygon() const;
private:
o3tl::cow_wrapper< ImplB2DMultiRange > mpImpl;
};
}
#endif /* _BGFX_RANGE_B2DMULTIRANGE_HXX */
|
