1 : /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
2 : * ***** BEGIN LICENSE BLOCK *****
3 : * Version: MPL 1.1/GPL 2.0/LGPL 2.1
4 : *
5 : * The contents of this file are subject to the Mozilla Public License Version
6 : * 1.1 (the "License"); you may not use this file except in compliance with
7 : * the License. You may obtain a copy of the License at
8 : * http://www.mozilla.org/MPL/
9 : *
10 : * Software distributed under the License is distributed on an "AS IS" basis,
11 : * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
12 : * for the specific language governing rights and limitations under the
13 : * License.
14 : *
15 : * The Original Code is Mozilla Corporation code.
16 : *
17 : * The Initial Developer of the Original Code is Oracle Corporation.
18 : * Portions created by the Initial Developer are Copyright (C) 2005
19 : * the Initial Developer. All Rights Reserved.
20 : *
21 : * Contributor(s):
22 : * Matt Woodrow <mwoodrow@mozilla.com>
23 : *
24 : * Alternatively, the contents of this file may be used under the terms of
25 : * either the GNU General Public License Version 2 or later (the "GPL"), or
26 : * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
27 : * in which case the provisions of the GPL or the LGPL are applicable instead
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33 : * the provisions above, a recipient may use your version of this file under
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35 : *
36 : * ***** END LICENSE BLOCK ***** */
37 :
38 : #ifndef GFX_QUAD_H
39 : #define GFX_QUAD_H
40 :
41 : #include "gfxTypes.h"
42 : #include "gfxLineSegment.h"
43 :
44 : struct THEBES_API gfxQuad {
45 : gfxQuad(const gfxPoint& aOne, const gfxPoint& aTwo, const gfxPoint& aThree, const gfxPoint& aFour)
46 : {
47 : mPoints[0] = aOne;
48 : mPoints[1] = aTwo;
49 : mPoints[2] = aThree;
50 : mPoints[3] = aFour;
51 : }
52 :
53 0 : bool Contains(const gfxPoint& aPoint)
54 : {
55 0 : return (gfxLineSegment(mPoints[0], mPoints[1]).PointsOnSameSide(aPoint, mPoints[2]) &&
56 0 : gfxLineSegment(mPoints[1], mPoints[2]).PointsOnSameSide(aPoint, mPoints[3]) &&
57 0 : gfxLineSegment(mPoints[2], mPoints[3]).PointsOnSameSide(aPoint, mPoints[0]) &&
58 0 : gfxLineSegment(mPoints[3], mPoints[0]).PointsOnSameSide(aPoint, mPoints[1]));
59 : }
60 :
61 0 : gfxRect GetBounds()
62 : {
63 : gfxFloat min_x, max_x;
64 : gfxFloat min_y, max_y;
65 :
66 0 : min_x = max_x = mPoints[0].x;
67 0 : min_y = max_y = mPoints[0].y;
68 :
69 0 : for (int i=1; i<4; i++) {
70 0 : min_x = NS_MIN(mPoints[i].x, min_x);
71 0 : max_x = NS_MAX(mPoints[i].x, max_x);
72 0 : min_y = NS_MIN(mPoints[i].y, min_y);
73 0 : max_y = NS_MAX(mPoints[i].y, max_y);
74 : }
75 0 : return gfxRect(min_x, min_y, max_x - min_x, max_y - min_y);
76 : }
77 :
78 : gfxPoint mPoints[4];
79 : };
80 :
81 : #endif /* GFX_QUAD_H */
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