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/*
* This file is part of din.
*
* din is copyright (c) 2006 - 2012 S Jagannathan <jag@dinisnoise.org>
* For more information, please visit http://dinisnoise.org
*
* din 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.
*
* din 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 din. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef __box_selector
#define __box_selector
#include "box.h"
#include <GL/gl.h>
template <class T> struct box_selector {
box<T> region;
int exists;
void begin (T x, T y) {
region.left = x;
region.bottom = y;
exists = 1;
}
void update (T x, T y) {
region.right = x;
region.top = y;
}
void end () {
region.calc ();
exists = 0;
}
void draw () {
glColor3f (1, 1, 1);
if (exists) {
glBegin (GL_LINE_LOOP);
glVertex2i (region.left, region.bottom);
glVertex2i (region.right, region.bottom);
glVertex2i (region.right, region.top);
glVertex2i (region.left, region.top);
glEnd ();
}
}
int handle_input (T x, T y) {
extern int lmb;
if (lmb) {
if (!exists) {
begin (x, y);
return 0;
} else {
update (x, y);
return 0;
}
} else if (exists) {
end ();
return 1;
}
return 0;
}
};
#endif
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