/****************************************************************************
- * Copyright (c) 1998-2008,2009 Free Software Foundation, Inc. *
+ * Copyright 2020 Thomas E. Dickey *
+ * Copyright 1998-2010,2016 Free Software Foundation, Inc. *
* *
* Permission is hereby granted, free of charge, to any person obtaining a *
* copy of this software and associated documentation files (the *
#include <curses.priv.h>
-MODULE_ID("$Id: lib_window.c,v 1.27 2009/10/24 22:12:46 tom Exp $")
+MODULE_ID("$Id: lib_window.c,v 1.31 2020/02/02 23:34:34 tom Exp $")
NCURSES_EXPORT(void)
_nc_synchook(WINDOW *win)
/* move a derived window */
{
WINDOW *orig;
- int i;
+ int rc = ERR;
T((T_CALLED("mvderwin(%p,%d,%d)"), (void *) win, y, x));
- if (win && (orig = win->_parent)) {
- if (win->_parx == x && win->_pary == y)
- returnCode(OK);
- if (x < 0 || y < 0)
- returnCode(ERR);
- if ((x + getmaxx(win) > getmaxx(orig)) ||
- (y + getmaxy(win) > getmaxy(orig)))
- returnCode(ERR);
- } else
- returnCode(ERR);
- wsyncup(win);
- win->_parx = x;
- win->_pary = y;
- for (i = 0; i < getmaxy(win); i++)
- win->_line[i].text = &(orig->_line[y++].text[x]);
- returnCode(OK);
+ if (win != 0
+ && (orig = win->_parent) != 0
+ && (x >= 0 && y >= 0)
+ && (x + getmaxx(win) <= getmaxx(orig))
+ && (y + getmaxy(win) <= getmaxy(orig))) {
+ int i;
+
+ wsyncup(win);
+ win->_parx = x;
+ win->_pary = y;
+ for (i = 0; i < getmaxy(win); i++)
+ win->_line[i].text = &(orig->_line[y++].text[x]);
+ rc = OK;
+ }
+ returnCode(rc);
}
NCURSES_EXPORT(int)
/* make an exact duplicate of the given window */
{
WINDOW *nwin = 0;
- size_t linesize;
- int i;
T((T_CALLED("dupwin(%p)"), (void *) win));
}
if (nwin != 0) {
+ int i;
+ size_t linesize;
nwin->_curx = win->_curx;
nwin->_cury = win->_cury;
if (win->_flags & _ISPAD)
nwin->_pad = win->_pad;
- linesize = (win->_maxx + 1) * sizeof(NCURSES_CH_T);
+ linesize = (unsigned) (win->_maxx + 1) * sizeof(NCURSES_CH_T);
for (i = 0; i <= nwin->_maxy; i++) {
memcpy(nwin->_line[i].text, win->_line[i].text, linesize);
nwin->_line[i].firstchar = win->_line[i].firstchar;