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gfxPoint.h
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00001 /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
00002  * ***** BEGIN LICENSE BLOCK *****
00003  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
00004  *
00005  * The contents of this file are subject to the Mozilla Public License Version
00006  * 1.1 (the "License"); you may not use this file except in compliance with
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00009  *
00010  * Software distributed under the License is distributed on an "AS IS" basis,
00011  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
00012  * for the specific language governing rights and limitations under the
00013  * License.
00014  *
00015  * The Original Code is Oracle Corporation code.
00016  *
00017  * The Initial Developer of the Original Code is Oracle Corporation.
00018  * Portions created by the Initial Developer are Copyright (C) 2005
00019  * the Initial Developer. All Rights Reserved.
00020  *
00021  * Contributor(s):
00022  *   Stuart Parmenter <pavlov@pavlov.net>
00023  *
00024  * Alternatively, the contents of this file may be used under the terms of
00025  * either the GNU General Public License Version 2 or later (the "GPL"), or
00026  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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00036  * ***** END LICENSE BLOCK ***** */
00037 
00038 #ifndef GFX_POINT_H
00039 #define GFX_POINT_H
00040 
00041 #include <math.h>
00042 
00043 #include "gfxTypes.h"
00044 
00045 struct gfxSize {
00046     gfxFloat width, height;
00047 
00048     gfxSize() {}
00049     gfxSize(const gfxSize& s) : width(s.width), height(s.height) {}
00050     gfxSize(gfxFloat _width, gfxFloat _height) : width(_width), height(_height) {}
00051 
00052     void SizeTo(gfxFloat _width, gfxFloat _height) {width = _width; height = _height;}
00053 
00054     int operator==(const gfxSize& s) const {
00055         return ((width == s.width) && (height == s.height));
00056     }
00057     int operator!=(const gfxSize& s) const {
00058         return ((width != s.width) || (height != s.height));
00059     }
00060     gfxSize operator+(const gfxSize& s) const {
00061         return gfxSize(width + s.width, height + s.height);
00062     }
00063     gfxSize operator-() const {
00064         return gfxSize(- width, - height);
00065     }
00066 };
00067 
00068 struct gfxPoint {
00069     gfxFloat x, y;
00070 
00071     gfxPoint() { }
00072     gfxPoint(const gfxPoint& p) : x(p.x), y(p.y) {}
00073     gfxPoint(gfxFloat _x, gfxFloat _y) : x(_x), y(_y) {}
00074 
00075     void MoveTo(gfxFloat aX, gfxFloat aY) { x = aX; y = aY; }
00076 
00077     int operator==(const gfxPoint& p) const {
00078         return ((x == p.x) && (y == p.y));
00079     }
00080     int operator!=(const gfxPoint& p) const {
00081         return ((x != p.x) || (y != p.y));
00082     }
00083     gfxPoint operator+(const gfxPoint& p) const {
00084         return gfxPoint(x + p.x, y + p.y);
00085     }
00086     gfxPoint operator+(const gfxSize& s) const {
00087         return gfxPoint(x + s.width, y + s.height);
00088     }
00089     gfxPoint operator-(const gfxPoint& p) const {
00090         return gfxPoint(x - p.x, y - p.y);
00091     }
00092     gfxPoint operator-(const gfxSize& s) const {
00093         return gfxPoint(x - s.width, y - s.height);
00094     }
00095     gfxPoint operator-() const {
00096         return gfxPoint(- x, - y);
00097     }
00098 
00099     gfxPoint& round() {
00100         x = ::floor(x + 0.5);
00101         y = ::floor(y + 0.5);
00102         return *this;
00103     }
00104 };
00105 
00106 #endif /* GFX_POINT_H */