Initial structure

include/Core/Util/Rectangle.h

@@ -0,0 +1,120 @@
+/*
+	This file is part of Daydream Engine.
+	Copyright 2014 Adam Byléhn, Tobias Dahl, Simon Holmberg, Viktor Ljung
+	
+	Daydream Engine 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 3 of the License, or
+	(at your option) any later version.
+	
+	Daydream Engine 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 have received a copy of the GNU Lesser General Public License
+	along with Daydream Engine.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef Util_Rectangle_h__
+#define Util_Rectangle_h__
+
+#include <algorithm>
+
+namespace dd
+{
+
+struct Rectangle
+{
+	Rectangle()
+		: X(0), Y(0), Width(0), Height(0) { }
+
+	Rectangle(int width, int height)
+		: X(0), Y(0), Width(width), Height(height) { }
+
+	Rectangle(int x, int y, int width, int height)
+		: X(x), Y(y), Width(width), Height(height) { }
+
+	/*Rectangle(const Rectangle &rect)
+	: X(rect.X), Y(rect.Y), Width(rect.Width), Height(rect.Height) { }*/
+
+	int X;
+	int Y;
+	int Width;
+	int Height;
+
+	virtual int Left() const { return X; }
+	void SetLeft(int left)
+	{
+		Width += X - left;
+		X = left;
+	}
+	virtual int Right() const { return X + Width; }
+	void SetRight(int right)
+	{
+		Width = right - X;
+	}
+	virtual int Top() const { return Y; }
+	void SetTop(int top)
+	{
+		Height += Y - top;
+		Y = top;
+	}
+	virtual int Bottom() const { return Y + Height; }
+	int SetBottom(int bottom)
+	{
+		Height = bottom - Y;
+	}
+
+	Rectangle& operator+=(const Rectangle &rhs)	{
+		SetLeft(std::min(Left(), rhs.Left()));
+		SetRight(std::max(Right(), rhs.Right()));
+		SetTop(std::min(Top(), rhs.Top()));
+		SetBottom(std::max(Bottom(), rhs.Bottom()));
+	}
+
+	static bool Intersects(const Rectangle &r1, const Rectangle &r2)
+	{
+		return !(r2.Left() > r1.Right() || r2.Right() < r1.Left() || r2.Top() > r1.Bottom() || r2.Bottom() < r1.Top());
+	}
+};
+
+inline bool operator==(const Rectangle &r1, const Rectangle &r2)
+{
+	return (r1.X == r2.X) && (r1.Y == r2.Y) && (r1.Width == r2.Width) && (r1.Height == r2.Height);
+}
+
+inline bool operator!=(const Rectangle &lhs, const Rectangle &rhs)
+{
+	return !(lhs == rhs);
+}
+
+inline bool operator<(const Rectangle &lhs, const Rectangle &rhs)
+{
+	return (lhs.Width < rhs.Width) && (lhs.Height < rhs.Height);
+}
+
+inline bool operator>(const Rectangle &lhs, const Rectangle &rhs)
+{
+	return rhs < lhs;
+}
+
+inline bool operator<=(const Rectangle &lhs, const Rectangle &rhs)
+{
+	return !(lhs > rhs);
+}
+
+inline bool operator>=(const Rectangle &lhs, const Rectangle &rhs)
+{
+	return !(lhs < rhs);
+}
+
+inline Rectangle operator+(Rectangle lhs, const Rectangle &rhs)
+{
+	lhs += rhs;
+	return lhs;
+}
+
+}
+
+#endif // Util_Rectangle_h__