143 lines
2.9 KiB
C
143 lines
2.9 KiB
C
/* 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_pad.c
|
|
* newpad -- create a new pad
|
|
* pnoutrefresh -- refresh a pad, no update
|
|
* pechochar -- add a char to a pad and refresh
|
|
*/
|
|
|
|
#include <stdlib.h>
|
|
#include "curses.priv.h"
|
|
|
|
WINDOW *newpad(int l, int c)
|
|
{
|
|
WINDOW *win;
|
|
chtype *ptr;
|
|
int i, j;
|
|
|
|
T(("newpad(%d, %d) called", l, c));
|
|
|
|
if (l <= 0 || c <= 0)
|
|
return NULL;
|
|
|
|
if ((win = makenew(l,c,0,0)) == NULL)
|
|
return NULL;
|
|
|
|
win->_flags |= _ISPAD;
|
|
|
|
for (i = 0; i < l; i++) {
|
|
if ((win->_line[i] = (chtype *) calloc(c, sizeof(chtype))) == NULL) {
|
|
for (j = 0; j < i; j++)
|
|
free(win->_line[j]);
|
|
|
|
free(win->_firstchar);
|
|
free(win->_lastchar);
|
|
free(win->_line);
|
|
free(win);
|
|
|
|
return NULL;
|
|
}
|
|
else
|
|
for (ptr = win->_line[i]; ptr < win->_line[i] + c; )
|
|
*ptr++ = ' ';
|
|
}
|
|
|
|
T(("newpad: returned window is %x", win));
|
|
|
|
return(win);
|
|
}
|
|
|
|
int prefresh(WINDOW *win, int pminrow, int pmincol,
|
|
int sminrow, int smincol, int smaxrow, int smaxcol)
|
|
{
|
|
T(("prefresh() called"));
|
|
if (pnoutrefresh(win, pminrow, pmincol, sminrow, smincol, smaxrow, smaxcol) != ERR)
|
|
return (doupdate());
|
|
else
|
|
return ERR;
|
|
|
|
}
|
|
|
|
int pnoutrefresh(WINDOW *win, int pminrow, int pmincol,
|
|
int sminrow, int smincol, int smaxrow, int smaxcol)
|
|
{
|
|
int i, j;
|
|
int m, n;
|
|
|
|
T(("pnoutrefresh(%x, %d, %d, %d, %d, %d, %d) called",
|
|
win, pminrow, pmincol, sminrow, smincol, smaxrow, smaxcol));
|
|
|
|
if (!(win->_flags & _ISPAD))
|
|
return ERR;
|
|
|
|
T(("one"));
|
|
if (pminrow < 0) pminrow = 0;
|
|
if (pmincol < 0) pmincol = 0;
|
|
if (sminrow < 0) sminrow = 0;
|
|
if (smincol < 0) smincol = 0;
|
|
|
|
T(("two"));
|
|
if (smaxrow >= LINES || smaxcol >= COLS)
|
|
return ERR;
|
|
|
|
T(("three"));
|
|
if ((pminrow + smaxrow > win->_maxy) || (pmincol + smaxcol > win->_maxx))
|
|
return ERR;
|
|
|
|
T(("pad being refreshed"));
|
|
|
|
for (i = pminrow, m = sminrow; i <= smaxrow + pminrow; i++, m++) {
|
|
j = pmincol;
|
|
n = j + smincol;
|
|
for (; j <= pmincol + smaxcol; j++, n++) {
|
|
if (win->_line[i][j] != newscr->_line[m][n]) {
|
|
newscr->_line[m][n] = win->_line[i][j];
|
|
|
|
if (newscr->_firstchar[m] == _NOCHANGE)
|
|
newscr->_firstchar[m] = newscr->_lastchar[m] = n;
|
|
else if (n < newscr->_firstchar[m])
|
|
newscr->_firstchar[m] = n;
|
|
else if (n > newscr->_lastchar[m])
|
|
newscr->_lastchar[m] = n;
|
|
}
|
|
}
|
|
}
|
|
|
|
win->_firstchar[i] = win->_lastchar[i] = _NOCHANGE;
|
|
|
|
win->_begx = smincol;
|
|
win->_begy = sminrow;
|
|
|
|
if (win->_clear) {
|
|
win->_clear = FALSE;
|
|
newscr->_clear = TRUE;
|
|
}
|
|
|
|
if (! win->_leave) {
|
|
newscr->_cury = win->_cury + win->_begy;
|
|
newscr->_curx = win->_curx + win->_begx;
|
|
}
|
|
return OK;
|
|
}
|
|
|
|
int pechochar(WINDOW *pad, chtype ch)
|
|
{
|
|
int x, y;
|
|
|
|
T(("echochar(%x, %x)", pad, ch));
|
|
|
|
if (pad->_flags & _ISPAD)
|
|
return ERR;
|
|
|
|
x = pad->_begx + pad->_curx;
|
|
y = pad->_begy + pad->_cury;
|
|
|
|
waddch(curscr, ch);
|
|
doupdate();
|
|
return OK;
|
|
}
|
|
|