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https://github.com/Aigor44/ncursesw-morphos.git
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121 lines
4.7 KiB
C
121 lines
4.7 KiB
C
/****************************************************************************
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* Copyright (c) 1998-2006,2009 Free Software Foundation, Inc. *
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* *
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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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* *
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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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* *
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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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* *
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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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* authorization. *
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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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* and: Thomas E. Dickey 1996-on *
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* and: Juergen Pfeifer *
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****************************************************************************/
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/*
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** lib_mvwin.c
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**
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** The routine mvwin().
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**
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*/
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#include <curses.priv.h>
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MODULE_ID("$Id: lib_mvwin.c,v 1.16 2009/06/06 20:25:07 tom Exp $")
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NCURSES_EXPORT(int)
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mvwin(WINDOW *win, int by, int bx)
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{
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#if NCURSES_SP_FUNCS
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SCREEN *sp = _nc_screen_of(win);
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#endif
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T((T_CALLED("mvwin(%p,%d,%d)"), win, by, bx));
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if (!win || (win->_flags & _ISPAD))
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returnCode(ERR);
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/*
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* mvwin() should only modify the indices. See test/demo_menus.c and
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* test/movewindow.c for examples.
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*/
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#if 0
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/* Copying subwindows is allowed, but it is expensive... */
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if (win->_flags & _SUBWIN) {
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int err = ERR;
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WINDOW *parent = win->_parent;
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if (parent) { /* Now comes the complicated and costly part, you should really
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* try to avoid to move subwindows. Because a subwindow shares
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* the text buffers with its parent, one can't do a simple
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* memmove of the text buffers. One has to create a copy, then
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* to relocate the subwindow and then to do a copy.
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*/
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if ((by - parent->_begy == win->_pary) &&
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(bx - parent->_begx == win->_parx))
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err = OK; /* we don't actually move */
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else {
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WINDOW *clone = dupwin(win);
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if (clone) {
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/* now we have the clone, so relocate win */
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werase(win); /* Erase the original place */
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/* fill with parents background */
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wbkgrnd(win, CHREF(parent->_nc_bkgd));
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wsyncup(win); /* Tell the parent(s) */
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err = mvderwin(win,
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by - parent->_begy,
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bx - parent->_begx);
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if (err != ERR) {
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err = copywin(clone, win,
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0, 0, 0, 0, win->_maxy, win->_maxx, 0);
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if (ERR != err)
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wsyncup(win);
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}
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if (ERR == delwin(clone))
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err = ERR;
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}
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}
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}
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returnCode(err);
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}
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#endif
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if (by + win->_maxy > screen_lines(SP_PARM) - 1
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|| bx + win->_maxx > screen_columns(SP_PARM) - 1
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|| by < 0
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|| bx < 0)
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returnCode(ERR);
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/*
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* Whether or not the window is moved, touch the window's contents so
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* that a following call to 'wrefresh()' will paint the window at the
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* new location. This ensures that if the caller has refreshed another
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* window at the same location, that this one will be displayed.
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*/
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win->_begy = by;
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win->_begx = bx;
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returnCode(touchwin(win));
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}
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