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Add ncurses 6.4
This commit is contained in:
Justine Tunney
parent
6ee5580adc
commit
0ed7309fdb
3071 changed files with 69379 additions and 1 deletions
406
third_party/ncurses/lib_newwin.c
vendored
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406
third_party/ncurses/lib_newwin.c
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/****************************************************************************
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* Copyright 2020,2021 Thomas E. Dickey *
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* Copyright 1998-2016,2017 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 2009 *
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****************************************************************************/
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/*
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** lib_newwin.c
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**
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** The routines newwin(), subwin() and their dependent
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**
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*/
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#include "curses.priv.h"
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#include <stddef.h>
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MODULE_ID("$Id: lib_newwin.c,v 1.76 2021/10/23 18:53:38 tom Exp $")
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#define window_is(name) ((sp)->_##name == win)
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#if USE_REENTRANT
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#define remove_window(name) \
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sp->_##name = 0
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#else
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#define remove_window(name) \
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sp->_##name = 0; \
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if (win == name) \
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name = 0
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#endif
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static void
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remove_window_from_screen(WINDOW *win)
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{
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SCREEN *sp;
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#ifdef USE_SP_WINDOWLIST
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if ((sp = _nc_screen_of(win)) != 0) {
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if (window_is(curscr)) {
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remove_window(curscr);
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} else if (window_is(stdscr)) {
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remove_window(stdscr);
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} else if (window_is(newscr)) {
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remove_window(newscr);
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}
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}
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#else
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for (each_screen(sp)) {
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if (window_is(curscr)) {
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remove_window(curscr);
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break;
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} else if (window_is(stdscr)) {
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remove_window(stdscr);
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break;
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} else if (window_is(newscr)) {
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remove_window(newscr);
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break;
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}
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}
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#endif
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}
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NCURSES_EXPORT(int)
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_nc_freewin(WINDOW *win)
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{
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int result = ERR;
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#ifdef USE_SP_WINDOWLIST
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SCREEN *sp = _nc_screen_of(win); /* pretend this is parameter */
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#endif
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T((T_CALLED("_nc_freewin(%p)"), (void *) win));
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if (win != 0) {
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if (_nc_nonsp_try_global(curses) == 0) {
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WINDOWLIST *p, *q;
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q = 0;
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for (each_window(sp, p)) {
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if (&(p->win) == win) {
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remove_window_from_screen(win);
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if (q == 0)
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WindowList(sp) = p->next;
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else
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q->next = p->next;
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if (!IS_SUBWIN(win)) {
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int i;
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for (i = 0; i <= win->_maxy; i++)
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FreeIfNeeded(win->_line[i].text);
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}
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free(win->_line);
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free(p);
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result = OK;
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T(("...deleted win=%p", (void *) win));
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break;
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}
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q = p;
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}
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_nc_nonsp_unlock_global(curses);
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}
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}
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returnCode(result);
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}
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NCURSES_EXPORT(WINDOW *)
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NCURSES_SP_NAME(newwin) (NCURSES_SP_DCLx
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int num_lines, int num_columns, int begy, int begx)
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{
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WINDOW *win;
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NCURSES_CH_T *ptr;
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int i;
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T((T_CALLED("newwin(%p, %d,%d,%d,%d)"), (void *) SP_PARM, num_lines, num_columns,
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begy, begx));
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if (begy < 0
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|| begx < 0
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|| num_lines < 0
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|| num_columns < 0
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|| SP_PARM == 0)
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returnWin(0);
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if (num_lines == 0)
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num_lines = SP_PARM->_lines_avail - begy;
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if (num_columns == 0)
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num_columns = screen_columns(SP_PARM) - begx;
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win = NCURSES_SP_NAME(_nc_makenew) (NCURSES_SP_ARGx
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num_lines, num_columns, begy, begx, 0);
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if (win == 0)
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returnWin(0);
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for (i = 0; i < num_lines; i++) {
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win->_line[i].text = typeCalloc(NCURSES_CH_T, (unsigned) num_columns);
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if (win->_line[i].text == 0) {
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(void) _nc_freewin(win);
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returnWin(0);
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}
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for (ptr = win->_line[i].text;
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ptr < win->_line[i].text + num_columns;
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ptr++)
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SetChar(*ptr, BLANK_TEXT, BLANK_ATTR);
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}
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returnWin(win);
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}
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#if NCURSES_SP_FUNCS
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NCURSES_EXPORT(WINDOW *)
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newwin(int num_lines, int num_columns, int begy, int begx)
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{
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WINDOW *win;
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_nc_sp_lock_global(curses);
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win = NCURSES_SP_NAME(newwin) (CURRENT_SCREEN,
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num_lines, num_columns, begy, begx);
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_nc_sp_unlock_global(curses);
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return (win);
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}
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#endif
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NCURSES_EXPORT(WINDOW *)
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derwin(WINDOW *orig, int num_lines, int num_columns, int begy, int begx)
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{
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WINDOW *win;
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int i;
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int flags = _SUBWIN;
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#if NCURSES_SP_FUNCS
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SCREEN *sp = _nc_screen_of(orig);
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#endif
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T((T_CALLED("derwin(%p,%d,%d,%d,%d)"), (void *) orig, num_lines, num_columns,
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begy, begx));
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/*
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* make sure window fits inside the original one
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*/
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if (begy < 0 || begx < 0 || orig == 0 || num_lines < 0 || num_columns < 0)
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returnWin(0);
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if (begy + num_lines > orig->_maxy + 1
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|| begx + num_columns > orig->_maxx + 1)
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returnWin(0);
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if (num_lines == 0)
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num_lines = orig->_maxy + 1 - begy;
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if (num_columns == 0)
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num_columns = orig->_maxx + 1 - begx;
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if (IS_PAD(orig))
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flags |= _ISPAD;
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win = NCURSES_SP_NAME(_nc_makenew) (NCURSES_SP_ARGx num_lines, num_columns,
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orig->_begy + begy,
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orig->_begx + begx, flags);
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if (win == 0)
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returnWin(0);
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win->_pary = begy;
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win->_parx = begx;
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WINDOW_ATTRS(win) = WINDOW_ATTRS(orig);
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win->_nc_bkgd = orig->_nc_bkgd;
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for (i = 0; i < num_lines; i++)
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win->_line[i].text = &orig->_line[begy++].text[begx];
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win->_parent = orig;
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returnWin(win);
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}
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NCURSES_EXPORT(WINDOW *)
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subwin(WINDOW *w, int l, int c, int y, int x)
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{
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WINDOW *result = 0;
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T((T_CALLED("subwin(%p, %d, %d, %d, %d)"), (void *) w, l, c, y, x));
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if (w != 0) {
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T(("parent has begy = %ld, begx = %ld", (long) w->_begy, (long) w->_begx));
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result = derwin(w, l, c, y - w->_begy, x - w->_begx);
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}
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returnWin(result);
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}
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static bool
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dimension_limit(int value)
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{
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NCURSES_SIZE_T test = (NCURSES_SIZE_T) value;
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return (test == value && value > 0);
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}
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NCURSES_EXPORT(WINDOW *)
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NCURSES_SP_NAME(_nc_makenew) (NCURSES_SP_DCLx
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int num_lines,
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int num_columns,
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int begy,
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int begx,
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int flags)
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{
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int i;
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WINDOWLIST *wp;
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WINDOW *win;
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bool is_padwin = (flags & _ISPAD);
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T((T_CALLED("_nc_makenew(%p,%d,%d,%d,%d)"),
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(void *) SP_PARM, num_lines, num_columns, begy, begx));
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if (SP_PARM == 0)
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returnWin(0);
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if (!dimension_limit(num_lines) || !dimension_limit(num_columns))
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returnWin(0);
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if ((wp = typeCalloc(WINDOWLIST, 1)) == 0)
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returnWin(0);
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win = &(wp->win);
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if ((win->_line = typeCalloc(struct ldat, ((unsigned) num_lines))) == 0) {
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free(wp);
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returnWin(0);
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}
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_nc_nonsp_lock_global(curses);
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win->_curx = 0;
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win->_cury = 0;
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win->_maxy = (NCURSES_SIZE_T) (num_lines - 1);
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win->_maxx = (NCURSES_SIZE_T) (num_columns - 1);
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win->_begy = (NCURSES_SIZE_T) begy;
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win->_begx = (NCURSES_SIZE_T) begx;
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win->_yoffset = SP_PARM->_topstolen;
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win->_flags = (short) flags;
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WINDOW_ATTRS(win) = A_NORMAL;
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SetChar(win->_nc_bkgd, BLANK_TEXT, BLANK_ATTR);
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win->_clear = (is_padwin
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? FALSE
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: (num_lines == screen_lines(SP_PARM)
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&& num_columns == screen_columns(SP_PARM)));
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win->_idlok = FALSE;
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win->_idcok = TRUE;
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win->_scroll = FALSE;
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win->_leaveok = FALSE;
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win->_use_keypad = FALSE;
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win->_delay = -1;
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win->_immed = FALSE;
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win->_sync = 0;
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win->_parx = -1;
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win->_pary = -1;
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win->_parent = 0;
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win->_regtop = 0;
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win->_regbottom = (NCURSES_SIZE_T) (num_lines - 1);
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win->_pad._pad_y = -1;
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win->_pad._pad_x = -1;
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win->_pad._pad_top = -1;
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win->_pad._pad_bottom = -1;
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win->_pad._pad_left = -1;
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win->_pad._pad_right = -1;
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for (i = 0; i < num_lines; i++) {
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/*
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* This used to do
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*
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* win->_line[i].firstchar = win->_line[i].lastchar = _NOCHANGE;
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*
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* which marks the whole window unchanged. That's how
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* SVr1 curses did it, but SVr4 curses marks the whole new
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* window changed.
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*
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* With the old SVr1-like code, say you have stdscr full of
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* characters, then create a new window with newwin(),
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* then do a printw(win, "foo ");, the trailing spaces are
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* completely ignored by the following refreshes. So, you
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* get "foojunkjunk" on the screen instead of "foo " as
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* you actually intended.
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*
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* SVr4 doesn't do this. Instead the spaces are actually written.
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* So that's how we want ncurses to behave.
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*/
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win->_line[i].firstchar = 0;
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win->_line[i].lastchar = (NCURSES_SIZE_T) (num_columns - 1);
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if_USE_SCROLL_HINTS(win->_line[i].oldindex = i);
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}
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if (!is_padwin && (begx + num_columns == screen_columns(SP_PARM))) {
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win->_flags |= _ENDLINE;
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if (begx == 0 && num_lines == screen_lines(SP_PARM) && begy == 0)
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win->_flags |= _FULLWIN;
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if (begy + num_lines == screen_lines(SP_PARM))
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win->_flags |= _SCROLLWIN;
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}
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wp->next = WindowList(SP_PARM);
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wp->screen = SP_PARM;
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WindowList(SP_PARM) = wp;
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T((T_CREATE("window %p"), (void *) win));
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_nc_nonsp_unlock_global(curses);
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returnWin(win);
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}
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/*
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* wgetch() and other functions with a WINDOW* parameter may use a SCREEN*
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* internally, and it is useful to allow those to be invoked without switching
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* SCREEN's, e.g., for multi-threaded applications.
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*/
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#if NCURSES_SP_FUNCS
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NCURSES_EXPORT(WINDOW *)
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_nc_curscr_of(SCREEN *sp)
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{
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return (sp == 0) ? NULL : CurScreen(sp);
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}
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NCURSES_EXPORT(WINDOW *)
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_nc_newscr_of(SCREEN *sp)
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{
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return (sp == 0) ? NULL : NewScreen(sp);
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}
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NCURSES_EXPORT(WINDOW *)
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_nc_stdscr_of(SCREEN *sp)
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{
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return (sp == 0) ? NULL : StdScreen(sp);
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}
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#endif
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