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+/* GRAPHITE2 LICENSING
+
+ Copyright 2010, SIL International
+ All rights reserved.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2.1 of License, or
+ (at your option) any later version.
+
+ This program 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 for more details.
+
+ You should also have received a copy of the GNU Lesser General Public
+ License along with this library in the file named "LICENSE".
+ If not, write to the Free Software Foundation, 51 Franklin Street,
+ Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+ internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#pragma once
+
+namespace graphite2 {
+
+class Position
+{
+public:
+ Position() : x(0), y(0) { }
+ Position(const float inx, const float iny) : x(inx), y(iny) {}
+ Position operator + (const Position& a) const { return Position(x + a.x, y + a.y); }
+ Position operator - (const Position& a) const { return Position(x - a.x, y - a.y); }
+ Position operator * (const float m) const { return Position(x * m, y * m); }
+ Position &operator += (const Position &a) { x += a.x; y += a.y; return *this; }
+ Position &operator *= (const float m) { x *= m; y *= m; return *this; }
+
+ float x;
+ float y;
+};
+
+class Rect
+{
+public :
+ Rect() {}
+ Rect(const Position& botLeft, const Position& topRight): bl(botLeft), tr(topRight) {}
+ Rect widen(const Rect& other) { return Rect(Position(bl.x > other.bl.x ? other.bl.x : bl.x, bl.y > other.bl.y ? other.bl.y : bl.y), Position(tr.x > other.tr.x ? tr.x : other.tr.x, tr.y > other.tr.y ? tr.y : other.tr.y)); }
+ Rect operator + (const Position &a) const { return Rect(Position(bl.x + a.x, bl.y + a.y), Position(tr.x + a.x, tr.y + a.y)); }
+ Rect operator - (const Position &a) const { return Rect(Position(bl.x - a.x, bl.y - a.y), Position(tr.x - a.x, tr.y - a.y)); }
+ Rect operator * (float m) const { return Rect(Position(bl.x, bl.y) * m, Position(tr.x, tr.y) * m); }
+ float width() const { return tr.x - bl.x; }
+ float height() const { return tr.y - bl.y; }
+
+ bool hitTest(Rect &other);
+
+ // returns Position(overlapx, overlapy) where overlap<0 if overlapping else positive)
+ Position overlap(Position &offset, Rect &other, Position &otherOffset);
+ //Position constrainedAvoid(Position &offset, Rect &box, Rect &sdbox, Position &other, Rect &obox, Rect &osdbox);
+
+ Position bl;
+ Position tr;
+};
+
+} // namespace graphite2