home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
GEMini Atari
/
GEMini_Atari_CD-ROM_Walnut_Creek_December_1993.iso
/
files
/
gnu
/
crssrc16
/
touchola.c
< prev
next >
Wrap
C/C++ Source or Header
|
1993-07-29
|
2KB
|
58 lines
/*
* Copyright (c) 1981 Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
* provided that the above copyright notice and this paragraph are
* duplicated in all such forms and that any documentation,
* advertising materials, and other materials related to such
* distribution and use acknowledge that the software was developed
* by the University of California, Berkeley. The name of the
* University may not be used to endorse or promote products derived
* from this software without specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#ifndef lint
static char sccsid[] = "@(#)toucholap.c 5.3 (Berkeley) 6/30/88";
#endif /* not lint */
# include "curses.ext"
# define min(a,b) (a < b ? a : b)
# define max(a,b) (a > b ? a : b)
/*
* Touch, on win2, the part that overlaps with win1.
*
*/
void touchoverlap(win1, win2)
reg WINDOW *win1, *win2; {
reg int y, endy, endx, starty, startx;
# ifdef DEBUG
fprintf(outf, "TOUCHOVERLAP(%0.2o, %0.2o);\n", win1, win2);
# endif
starty = max(win1->_begy, win2->_begy);
startx = max(win1->_begx, win2->_begx);
endy = min(win1->_maxy + win1->_begy, win2->_maxy + win2->_begx);
endx = min(win1->_maxx + win1->_begx, win2->_maxx + win2->_begx);
# ifdef DEBUG
fprintf(outf, "TOUCHOVERLAP:from (%d,%d) to (%d,%d)\n", starty, startx, endy, endx);
fprintf(outf, "TOUCHOVERLAP:win1 (%d,%d) to (%d,%d)\n", win1->_begy, win1->_begx, win1->_begy + win1->_maxy, win1->_begx + win1->_maxx);
fprintf(outf, "TOUCHOVERLAP:win2 (%d,%d) to (%d,%d)\n", win2->_begy, win2->_begx, win2->_begy + win2->_maxy, win2->_begx + win2->_maxx);
# endif
if (starty >= endy || startx >= endx)
return;
starty -= win2->_begy;
startx -= win2->_begx;
endy -= win2->_begy;
endx -= win2->_begx;
endx--;
for (y = starty; y < endy; y++)
touchline(win2, y, startx, endx);
}