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/****************************************************************************
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* Copyright (c) 1998-2001,2002 Free Software Foundation, Inc. *
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* Permission is hereby granted, free of charge, to any person obtaining a *
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* copy of this software and associated documentation files (the *
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* "Software"), to deal in the Software without restriction, including *
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* without limitation the rights to use, copy, modify, merge, publish, *
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* distribute, distribute with modifications, sublicense, and/or sell *
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* copies of the Software, and to permit persons to whom the Software is *
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* furnished to do so, subject to the following conditions: *
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* The above copyright notice and this permission notice shall be included *
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* in all copies or substantial portions of the Software. *
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
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* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
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* THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
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* Except as contained in this notice, the name(s) of the above copyright *
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* holders shall not be used in advertising or otherwise to promote the *
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* sale, use or other dealings in this Software without prior written *
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****************************************************************************/
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/****************************************************************************
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* Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
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* and: Eric S. Raymond <esr@snark.thyrsus.com> *
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****************************************************************************/
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#include <curses.priv.h>
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MODULE_ID("$Id: lib_window.c,v 1.21 2002/09/14 23:28:02 tom Exp $")
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_nc_synchook(WINDOW *win)
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/* hook to be called after each window change */
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mvderwin(WINDOW *win, int y, int x)
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/* move a derived window */
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T((T_CALLED("mvderwin(%p,%d,%d)"), win, y, x));
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if (win && (orig = win->_parent)) {
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if (win->_parx == x && win->_pary == y)
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if ((x + getmaxx(win) > getmaxx(orig)) ||
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(y + getmaxy(win) > getmaxy(orig)))
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for (i = 0; i < getmaxy(win); i++)
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win->_line[i].text = &(orig->_line[y++].text[x]);
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syncok(WINDOW *win, bool bf)
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/* enable/disable automatic wsyncup() on each change to window */
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T((T_CALLED("syncok(%p,%d)"), win, bf));
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/* mark changed every cell in win's ancestors that is changed in win */
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/* Rewritten by J. Pfeifer, 1-Apr-96 (don't even think that...) */
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T((T_CALLED("wsyncup(%p)"), win));
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if (win && win->_parent) {
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for (wp = win; wp->_parent; wp = wp->_parent) {
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WINDOW *pp = wp->_parent;
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assert((wp->_pary <= pp->_maxy) &&
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((wp->_pary + wp->_maxy) <= pp->_maxy));
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for (y = 0; y <= wp->_maxy; y++) {
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int left = wp->_line[y].firstchar;
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if (left >= 0) { /* line is touched */
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struct ldat *line = &(pp->_line[wp->_pary + y]);
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/* left & right character in parent window coordinates */
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int right = wp->_line[y].lastchar + wp->_parx;
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CHANGED_RANGE(line, left, right);
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wsyncdown(WINDOW *win)
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/* mark changed every cell in win that is changed in any of its ancestors */
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/* Rewritten by J. Pfeifer, 1-Apr-96 (don't even think that...) */
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T((T_CALLED("wsyncdown(%p)"), win));
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if (win && win->_parent) {
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WINDOW *pp = win->_parent;
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/* This recursion guarantees, that the changes are propagated down-
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wards from the root to our direct parent. */
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/* and now we only have to propagate the changes from our direct
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parent, if there are any. */
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assert((win->_pary <= pp->_maxy) &&
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((win->_pary + win->_maxy) <= pp->_maxy));
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for (y = 0; y <= win->_maxy; y++) {
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if (pp->_line[win->_pary + y].firstchar >= 0) { /* parent changed */
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struct ldat *line = &(win->_line[y]);
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/* left and right character in child coordinates */
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int left = pp->_line[win->_pary + y].firstchar - win->_parx;
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int right = pp->_line[win->_pary + y].lastchar - win->_parx;
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/* The change maybe outside the childs range */
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if (right > win->_maxx)
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CHANGED_RANGE(line, left, right);
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wcursyncup(WINDOW *win)
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/* sync the cursor in all derived windows to its value in the base window */
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T((T_CALLED("wcursyncup(%p)"), win));
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for (wp = win; wp && wp->_parent; wp = wp->_parent) {
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wmove(wp->_parent, wp->_pary + wp->_cury, wp->_parx + wp->_curx);
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NCURSES_EXPORT(WINDOW *)
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/* make an exact duplicate of the given window */
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T((T_CALLED("dupwin(%p)"), win));
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if (win->_flags & _ISPAD) {
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nwin = newpad(win->_maxy + 1,
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nwin = newwin(win->_maxy + 1,
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nwin->_curx = win->_curx;
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nwin->_cury = win->_cury;
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nwin->_maxy = win->_maxy;
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nwin->_maxx = win->_maxx;
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nwin->_begy = win->_begy;
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nwin->_begx = win->_begx;
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nwin->_yoffset = win->_yoffset;
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nwin->_flags = win->_flags & ~_SUBWIN;
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/* Due to the use of newwin(), the clone is not a subwindow.
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* The text is really copied into the clone.
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nwin->_attrs = win->_attrs;
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nwin->_nc_bkgd = win->_nc_bkgd;
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nwin->_notimeout = win->_notimeout;
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nwin->_clear = win->_clear;
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nwin->_leaveok = win->_leaveok;
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nwin->_scroll = win->_scroll;
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nwin->_idlok = win->_idlok;
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nwin->_idcok = win->_idcok;
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nwin->_immed = win->_immed;
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nwin->_sync = win->_sync;
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nwin->_use_keypad = win->_use_keypad;
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nwin->_delay = win->_delay;
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nwin->_parent = (WINDOW *) 0;
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/* See above: the clone isn't a subwindow! */
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nwin->_regtop = win->_regtop;
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nwin->_regbottom = win->_regbottom;
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if (win->_flags & _ISPAD)
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nwin->_pad = win->_pad;
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linesize = (win->_maxx + 1) * sizeof(NCURSES_CH_T);
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for (i = 0; i <= nwin->_maxy; i++) {
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memcpy(nwin->_line[i].text, win->_line[i].text, linesize);
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nwin->_line[i].firstchar = win->_line[i].firstchar;
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nwin->_line[i].lastchar = win->_line[i].lastchar;