1 : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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 SVG Project code.
16 : *
17 : * The Initial Developer of the Original Code is the Mozilla Foundation.
18 : * Portions created by the Initial Developer are Copyright (C) 2010
19 : * the Initial Developer. All Rights Reserved.
20 : *
21 : * Contributor(s):
22 : *
23 : * Alternatively, the contents of this file may be used under the terms of
24 : * either the GNU General Public License Version 2 or later (the "GPL"), or
25 : * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
26 : * in which case the provisions of the GPL or the LGPL are applicable instead
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32 : * the provisions above, a recipient may use your version of this file under
33 : * the terms of any one of the MPL, the GPL or the LGPL.
34 : *
35 : * ***** END LICENSE BLOCK ***** */
36 :
37 : #ifndef MOZILLA_SVGPOINT_H__
38 : #define MOZILLA_SVGPOINT_H__
39 :
40 : #include "nsDebug.h"
41 : #include "gfxPoint.h"
42 :
43 : namespace mozilla {
44 :
45 : /**
46 : * This class is currently used for point list attributes.
47 : *
48 : * The DOM wrapper class for this class is DOMSVGPoint.
49 : */
50 : class SVGPoint
51 0 : {
52 : public:
53 :
54 0 : SVGPoint()
55 : #ifdef DEBUG
56 : : mX(0.0f)
57 0 : , mY(0.0f)
58 : #endif
59 0 : {}
60 :
61 0 : SVGPoint(float aX, float aY)
62 : : mX(aX)
63 0 : , mY(aY)
64 : {
65 0 : NS_ASSERTION(IsValid(), "Constructed an invalid SVGPoint");
66 0 : }
67 :
68 0 : SVGPoint(const SVGPoint &aOther)
69 : : mX(aOther.mX)
70 0 : , mY(aOther.mY)
71 0 : {}
72 :
73 0 : SVGPoint& operator=(const SVGPoint &rhs) {
74 0 : mX = rhs.mX;
75 0 : mY = rhs.mY;
76 0 : return *this;
77 : }
78 :
79 : bool operator==(const SVGPoint &rhs) const {
80 : return mX == rhs.mX && mY == rhs.mY;
81 : }
82 :
83 0 : SVGPoint& operator+=(const SVGPoint &rhs) {
84 0 : mX += rhs.mX;
85 0 : mY += rhs.mY;
86 0 : return *this;
87 : }
88 :
89 0 : operator gfxPoint() const {
90 0 : return gfxPoint(mX, mY);
91 : }
92 :
93 : #ifdef DEBUG
94 0 : bool IsValid() const {
95 0 : return NS_finite(mX) && NS_finite(mY);
96 : }
97 : #endif
98 :
99 : float mX;
100 : float mY;
101 : };
102 :
103 0 : inline SVGPoint operator+(const SVGPoint& aP1,
104 : const SVGPoint& aP2)
105 : {
106 0 : return SVGPoint(aP1.mX + aP2.mX, aP1.mY + aP2.mY);
107 : }
108 :
109 0 : inline SVGPoint operator-(const SVGPoint& aP1,
110 : const SVGPoint& aP2)
111 : {
112 0 : return SVGPoint(aP1.mX - aP2.mX, aP1.mY - aP2.mY);
113 : }
114 :
115 0 : inline SVGPoint operator*(float aFactor,
116 : const SVGPoint& aPoint)
117 : {
118 0 : return SVGPoint(aFactor * aPoint.mX, aFactor * aPoint.mY);
119 : }
120 :
121 0 : inline SVGPoint operator*(const SVGPoint& aPoint,
122 : float aFactor)
123 : {
124 0 : return SVGPoint(aFactor * aPoint.mX, aFactor * aPoint.mY);
125 : }
126 :
127 : } // namespace mozilla
128 :
129 : #endif // MOZILLA_SVGPOINT_H__
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