1 /*
2     Copyright (C) 2005, 2006 Apple Inc. All rights reserved.
3 
4     This library is free software; you can redistribute it and/or
5     modify it under the terms of the GNU Library General Public
6     License as published by the Free Software Foundation; either
7     version 2 of the License, or (at your option) any later version.
8 
9     This library is distributed in the hope that it will be useful,
10     but WITHOUT ANY WARRANTY; without even the implied warranty of
11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12     Library General Public License for more details.
13 
14     You should have received a copy of the GNU Library General Public License
15     along with this library; see the file COPYING.LIB.  If not, write to
16     the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17     Boston, MA 02110-1301, USA.
18 
19 
20     Some useful definitions needed for laying out elements
21 */
22 
23 #ifndef GapRects_h
24 #define GapRects_h
25 
26 #include "IntRect.h"
27 
28 namespace WebCore {
29 
30     struct GapRects {
leftGapRects31         const IntRect& left() const { return m_left; }
centerGapRects32         const IntRect& center() const { return m_center; }
rightGapRects33         const IntRect& right() const { return m_right; }
34 
uniteLeftGapRects35         void uniteLeft(const IntRect& r) { m_left.unite(r); }
uniteCenterGapRects36         void uniteCenter(const IntRect& r) { m_center.unite(r); }
uniteRightGapRects37         void uniteRight(const IntRect& r) { m_right.unite(r); }
uniteGapRects38         void unite(const GapRects& o) { uniteLeft(o.left()); uniteCenter(o.center()); uniteRight(o.right()); }
39 
IntRectGapRects40         operator IntRect() const
41         {
42             IntRect result = m_left;
43             result.unite(m_center);
44             result.unite(m_right);
45             return result;
46         }
47 
48         bool operator==(const GapRects& other)
49         {
50             return m_left == other.left() && m_center == other.center() && m_right == other.right();
51         }
52         bool operator!=(const GapRects& other) { return !(*this == other); }
53 
54     private:
55         IntRect m_left;
56         IntRect m_center;
57         IntRect m_right;
58     };
59 
60 } // namespace WebCore
61 
62 #endif // GapRects_h
63