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/* ScummVM - Scumm Interpreter
* Copyright (C) 2001/2002 The ScummVM project
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of 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.
* 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 General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* $Header$
*
*/
#ifndef __RECT_H_
#define __RECT_H_
#include "config.h"
/*! @brief simple class for handling both 2D position and size
This small class is an helper for position and size values.
*/
class Point {
private:
int _x; //!< The horizontal part of the point
int _y; //!< The vertical part of the point
public:
Point() : _x(0), _y(0) {};
Point(const Point & p) : _x(p.getX()), _y(p.getY()) {};
explicit Point(int x, int y) : _x(x), _y(y) {};
Point & operator=(const Point & p) { _x = p.getX(); _y = p.getY(); return *this; };
bool operator==(const Point & p) const { return _x == p.getX() && _y == p.getY(); };
const int & getX() const { return _x; };
const int & getY() const { return _y; };
int & getX() { return _x; };
int & getY() { return _y; };
Point operator+(const Point & p) const { return Point(_x + p.getX(), _y+p.getY()); };
Point operator-(const Point & p) const { return Point(_x - p.getX(), _y-p.getY()); };
Point & operator+=(const Point & p) { _x += p.getX(); _y += p.getY(); return *this; };
Point & operator-=(const Point & p) { _x -= p.getX(); _y -= p.getY(); return *this; };
bool isOrigin() const { return *this == Point(0, 0); };
void set(int x, int y) { _x = x; _y = y; }
};
/*! @brief simple class for handling a rectangular zone.
This small class is an helper for rectangles.
It is mostly used by the blitter class.
*/
class Rect {
private:
Point _topLeft; //!< The point at the top left of the rectangle
Point _bottomRight; //!< The point at the bottom right of the rectangle
protected:
void check();
public:
Rect();
Rect(int x, int y);
explicit Rect(const Point & size);
Rect(int x1, int y1, int x2, int y2);
Rect(const Point & topleft, const Point & bottomright);
Rect(const Rect & r);
Rect & operator=(const Rect & r);
bool operator==(const Rect & r) const;
Point size() const { return (_bottomRight - _topLeft); };
int width() const { return size().getX(); }
int height() const { return size().getY(); }
int left() const { return _topLeft.getX(); }
int right() const { return _bottomRight.getX(); }
int top() const { return _topLeft.getY(); }
int bottom() const { return _bottomRight.getY(); }
const Point & topLeft() const { return _topLeft; }
const Point & bottomRight() const { return _bottomRight; }
/*! @brief check if given position is inside the rectangle
@param x the horizontal position to check
@param y the vertical position to check
@return true if the given position is inside the rectangle, false otherwise
*/
bool isInside(int x, int y) const;
/*! @brief check if given point is inside the rectangle
@param p the point to check
@return true if the given point is inside the rectangle, false otherwise
*/
bool isInside(const Point & p) const;
bool clip(Rect & r) const;
};
#endif
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