freebsd-skq/lib/libncurses/lib_touch.c

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/* This work is copyrighted. See COPYRIGHT.OLD & COPYRIGHT.NEW for *
* details. If they are missing then this copy is in violation of *
* the copyright conditions. */
/*
** lib_touch.c
**
** The routines untouchwin(),
** wtouchln(),
** is_linetouched()
** is_wintouched().
**
*/
#include "curses.priv.h"
int is_linetouched(WINDOW *win, int line)
{
if (line > win->_maxy || line < 0)
return ERR;
if (win->_firstchar[line] != _NOCHANGE) return TRUE;
return FALSE;
}
int is_wintouched(WINDOW *win)
{
int i;
for (i = 0; i <= win->_maxy; i++)
if (win->_firstchar[i] != _NOCHANGE)
return TRUE;
return FALSE;
}
int wtouchln(WINDOW *win, int y, int n, int changed)
{
int i;
T(("wtouchln(%x,%d,%d,%d)", win, y, n, changed));
for (i = y; i < y+n; i++) {
win->_firstchar[i] = changed ? 0 : _NOCHANGE;
win->_lastchar[i] = changed ? win->_maxx : _NOCHANGE;
}
return OK;
}