mirror of
https://github.com/libretro/scummvm.git
synced 2024-12-16 22:58:09 +00:00
114 lines
3.4 KiB
C++
114 lines
3.4 KiB
C++
/* ScummVM - Scumm Interpreter
|
|
* Copyright (C) 2002-2003 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 COMMON_RECT_H
|
|
#define COMMON_RECT_H
|
|
|
|
#include "scummsys.h"
|
|
#include "util.h"
|
|
|
|
namespace ScummVM {
|
|
|
|
/*! @brief simple class for handling both 2D position and size
|
|
|
|
This small class is an helper for position and size values.
|
|
*/
|
|
struct Point {
|
|
int16 x; //!< The horizontal part of the point
|
|
int16 y; //!< The vertical part of the point
|
|
|
|
Point() : x(0), y(0) {};
|
|
Point(const Point & p) : x(p.x), y(p.y) {};
|
|
explicit Point(int16 x1, int16 y1) : x(x1), y(y1) {};
|
|
Point & operator=(const Point & p) { x = p.x; y = p.y; return *this; };
|
|
bool operator==(const Point & p) const { return x == p.x && y == p.y; };
|
|
bool operator!=(const Point & p) const { return x != p.x || y != p.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.
|
|
*/
|
|
struct Rect {
|
|
int16 top, left; //!< The point at the top left of the rectangle (part of the rect).
|
|
int16 bottom, right; //!< The point at the bottom right of the rectangle (not part of the rect).
|
|
|
|
Rect() : top(0), left(0), bottom(0), right(0) {}
|
|
Rect(int16 x, int16 y) : top(0), left(0), bottom(x), right(y) {}
|
|
Rect(int16 x1, int16 y1, int16 x2, int16 y2) : top(y1), left(x1), bottom(y2), right(x2) {}
|
|
int16 width() const { return right - left; }
|
|
int16 height() const { return bottom - top; }
|
|
|
|
/*! @brief check if given position is inside this rectangle
|
|
|
|
@param x the horizontal position to check
|
|
@param y the vertical position to check
|
|
|
|
@return true if the given position is inside this rectangle, false otherwise
|
|
*/
|
|
bool contains(int16 x, int16 y) const {
|
|
return (left <= x) && (x < right) && (top <= y) && (y < bottom);
|
|
}
|
|
|
|
/*! @brief check if given point is inside this rectangle
|
|
|
|
@param p the point to check
|
|
|
|
@return true if the given point is inside this rectangle, false otherwise
|
|
*/
|
|
bool contains(const Point & p) const {
|
|
return (left <= p.x) && (p.x < right) && (top <= p.y) && (p.y < bottom);
|
|
}
|
|
|
|
/*! @brief check if given rectangle intersects with this rectangle
|
|
|
|
@param r the rectangle to check
|
|
|
|
@return true if the given rectangle is inside the rectangle, false otherwise
|
|
*/
|
|
bool intersects(const Rect & r) const {
|
|
return (left < r.right) && (r.left < right) && (top < r.bottom) && (r.top < bottom);
|
|
}
|
|
|
|
/*! @brief extend this rectangle so that it contains r
|
|
|
|
@param r the rectangle to extend by
|
|
*/
|
|
void extend(const Rect & r) {
|
|
left = MIN(left, r.left);
|
|
right = MAX(right, r.right);
|
|
top = MIN(top, r.top);
|
|
bottom = MAX(bottom, r.bottom);
|
|
}
|
|
|
|
void grow(int16 offset) {
|
|
top -= offset;
|
|
left -= offset;
|
|
bottom += offset;
|
|
right += offset;
|
|
}
|
|
};
|
|
|
|
}; // End of namespace ScummVM
|
|
|
|
#endif
|