mirror of
https://github.com/Aigor44/ncursesw-morphos.git
synced 2024-12-27 07:49:06 +08:00
8f527f87c0
+ modify _nc_panelhook() data to account for a permanent memory leak. + fix memory leaks in test/demo_menus + fix most warnings from Klocwork tool (report by Larry Zhou). + modify configure script CF_XOPEN_SOURCE macro to add case for "dragonfly" from xterm #236 changes. + modify configure script --with-hashed-db to let $LIBS override the search for the db library (prompted by report by Samson Pierre).
648 lines
17 KiB
C
648 lines
17 KiB
C
/****************************************************************************
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* Copyright (c) 1998-2007,2008 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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****************************************************************************/
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/*
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** lib_set_term.c
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**
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** The routine set_term().
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**
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*/
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#include <curses.priv.h>
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#include <term.h> /* cur_term */
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#include <tic.h>
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MODULE_ID("$Id: lib_set_term.c,v 1.117 2008/08/04 18:11:12 tom Exp $")
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NCURSES_EXPORT(SCREEN *)
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set_term(SCREEN *screenp)
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{
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SCREEN *oldSP;
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SCREEN *newSP;
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T((T_CALLED("set_term(%p)"), screenp));
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_nc_lock_global(curses);
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oldSP = SP;
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_nc_set_screen(screenp);
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newSP = SP;
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if (newSP != 0) {
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set_curterm(newSP->_term);
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#if !USE_REENTRANT
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curscr = newSP->_curscr;
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newscr = newSP->_newscr;
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stdscr = newSP->_stdscr;
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COLORS = newSP->_color_count;
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COLOR_PAIRS = newSP->_pair_count;
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#endif
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} else {
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set_curterm(0);
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#if !USE_REENTRANT
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curscr = 0;
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newscr = 0;
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stdscr = 0;
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COLORS = 0;
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COLOR_PAIRS = 0;
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#endif
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}
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_nc_unlock_global(curses);
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T((T_RETURN("%p"), oldSP));
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return (oldSP);
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}
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static void
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_nc_free_keytry(TRIES * kt)
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{
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if (kt != 0) {
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_nc_free_keytry(kt->child);
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_nc_free_keytry(kt->sibling);
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free(kt);
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}
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}
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static bool
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delink_screen(SCREEN *sp)
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{
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SCREEN *last = 0;
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SCREEN *temp;
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bool result = FALSE;
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for (each_screen(temp)) {
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if (temp == sp) {
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if (last)
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last = sp->_next_screen;
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else
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_nc_screen_chain = sp->_next_screen;
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result = TRUE;
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break;
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}
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last = temp;
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}
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return result;
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}
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/*
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* Free the storage associated with the given SCREEN sp.
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*/
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NCURSES_EXPORT(void)
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delscreen(SCREEN *sp)
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{
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int i;
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T((T_CALLED("delscreen(%p)"), sp));
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_nc_lock_global(curses);
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if (delink_screen(sp)) {
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(void) _nc_freewin(sp->_curscr);
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(void) _nc_freewin(sp->_newscr);
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(void) _nc_freewin(sp->_stdscr);
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if (sp->_slk != 0) {
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if (sp->_slk->ent != 0) {
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for (i = 0; i < sp->_slk->labcnt; ++i) {
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FreeIfNeeded(sp->_slk->ent[i].ent_text);
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FreeIfNeeded(sp->_slk->ent[i].form_text);
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}
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free(sp->_slk->ent);
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}
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free(sp->_slk);
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sp->_slk = 0;
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}
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_nc_free_keytry(sp->_keytry);
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sp->_keytry = 0;
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_nc_free_keytry(sp->_key_ok);
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sp->_key_ok = 0;
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FreeIfNeeded(sp->_current_attr);
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FreeIfNeeded(sp->_color_table);
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FreeIfNeeded(sp->_color_pairs);
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FreeIfNeeded(sp->oldhash);
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FreeIfNeeded(sp->newhash);
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FreeIfNeeded(sp->hashtab);
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FreeIfNeeded(sp->_acs_map);
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FreeIfNeeded(sp->_screen_acs_map);
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/*
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* If the associated output stream has been closed, we can discard the
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* set-buffer. Limit the error check to EBADF, since fflush may fail
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* for other reasons than trying to operate upon a closed stream.
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*/
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if (sp->_ofp != 0
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&& sp->_setbuf != 0
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&& fflush(sp->_ofp) != 0
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&& errno == EBADF) {
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free(sp->_setbuf);
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}
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del_curterm(sp->_term);
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free(sp);
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/*
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* If this was the current screen, reset everything that the
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* application might try to use (except cur_term, which may have
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* multiple references in different screens).
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*/
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if (sp == SP) {
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#if !USE_REENTRANT
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curscr = 0;
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newscr = 0;
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stdscr = 0;
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COLORS = 0;
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COLOR_PAIRS = 0;
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#endif
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_nc_set_screen(0);
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}
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}
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_nc_unlock_global(curses);
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returnVoid;
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}
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static bool
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no_mouse_event(SCREEN *sp GCC_UNUSED)
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{
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return FALSE;
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}
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static bool
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no_mouse_inline(SCREEN *sp GCC_UNUSED)
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{
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return FALSE;
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}
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static bool
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no_mouse_parse(SCREEN *sp GCC_UNUSED, int code GCC_UNUSED)
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{
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return TRUE;
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}
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static void
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no_mouse_resume(SCREEN *sp GCC_UNUSED)
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{
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}
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static void
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no_mouse_wrap(SCREEN *sp GCC_UNUSED)
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{
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}
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#if NCURSES_EXT_FUNCS && USE_COLORFGBG
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static char *
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extract_fgbg(char *src, int *result)
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{
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char *dst = 0;
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long value = strtol(src, &dst, 0);
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if (dst == 0) {
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dst = src;
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} else if (value >= 0) {
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*result = value;
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}
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while (*dst != 0 && *dst != ';')
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dst++;
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if (*dst == ';')
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dst++;
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return dst;
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}
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#endif
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/* OS-independent screen initializations */
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NCURSES_EXPORT(int)
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_nc_setupscreen(int slines GCC_UNUSED,
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int scolumns GCC_UNUSED,
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FILE *output,
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bool filtered,
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int slk_format)
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{
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char *env;
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int bottom_stolen = 0;
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bool support_cookies = USE_XMC_SUPPORT;
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ripoff_t *rop;
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T((T_CALLED("_nc_setupscreen(%d, %d, %p, %d, %d)"),
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slines, scolumns, output, filtered, slk_format));
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assert(SP == 0); /* has been reset in newterm() ! */
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if (!_nc_alloc_screen()
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|| ((SP->_acs_map = typeCalloc(chtype, ACS_LEN)) == 0)
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|| ((SP->_screen_acs_map = typeCalloc(bool, ACS_LEN)) == 0)) {
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returnCode(ERR);
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}
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T(("created SP %p", SP));
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SP->_next_screen = _nc_screen_chain;
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_nc_screen_chain = SP;
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if ((SP->_current_attr = typeCalloc(NCURSES_CH_T, 1)) == 0)
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returnCode(ERR);
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/*
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* We should always check the screensize, just in case.
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*/
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_nc_get_screensize(SP, &slines, &scolumns);
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SET_LINES(slines);
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SET_COLS(scolumns);
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T((T_CREATE("screen %s %dx%d"), termname(), LINES, COLS));
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SP->_filtered = filtered;
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/* implement filter mode */
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if (filtered) {
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slines = 1;
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SET_LINES(slines);
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clear_screen = 0;
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cursor_down = parm_down_cursor = 0;
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cursor_address = 0;
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cursor_up = parm_up_cursor = 0;
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row_address = 0;
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cursor_home = carriage_return;
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T(("filter screensize %dx%d", LINES, COLS));
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}
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#ifdef __DJGPP__
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T(("setting output mode to binary"));
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fflush(output);
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setmode(output, O_BINARY);
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#endif
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_nc_set_buffer(output, TRUE);
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SP->_term = cur_term;
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SP->_lines = slines;
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SP->_lines_avail = slines;
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SP->_columns = scolumns;
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SP->_cursrow = -1;
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SP->_curscol = -1;
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SP->_nl = TRUE;
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SP->_raw = FALSE;
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SP->_cbreak = 0;
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SP->_echo = TRUE;
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SP->_fifohead = -1;
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SP->_endwin = TRUE;
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SP->_ofp = output;
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SP->_cursor = -1; /* cannot know real cursor shape */
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SetNoPadding(SP);
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#if NCURSES_EXT_FUNCS
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SP->_default_color = FALSE;
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SP->_has_sgr_39_49 = FALSE;
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/*
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* Set our assumption of the terminal's default foreground and background
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* colors. The curs_color man-page states that we can assume that the
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* background is black. The origin of this assumption appears to be
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* terminals that displayed colored text, but no colored backgrounds, e.g.,
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* the first colored terminals around 1980. More recent ones with better
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* technology can display not only colored backgrounds, but all
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* combinations. So a terminal might be something other than "white" on
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* black (green/black looks monochrome too), but black on white or even
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* on ivory.
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*
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* White-on-black is the simplest thing to use for monochrome. Almost
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* all applications that use color paint both text and background, so
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* the distinction is moot. But a few do not - which is why we leave this
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* configurable (a better solution is to use assume_default_colors() for
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* the rare applications that do require that sort of appearance, since
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* is appears that more users expect to be able to make a white-on-black
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* or black-on-white display under control of the application than not).
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*/
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#ifdef USE_ASSUMED_COLOR
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SP->_default_fg = COLOR_WHITE;
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SP->_default_bg = COLOR_BLACK;
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#else
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SP->_default_fg = C_MASK;
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SP->_default_bg = C_MASK;
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#endif
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/*
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* Allow those assumed/default color assumptions to be overridden at
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* runtime:
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*/
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if ((env = getenv("NCURSES_ASSUMED_COLORS")) != 0) {
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int fg, bg;
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char sep1, sep2;
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int count = sscanf(env, "%d%c%d%c", &fg, &sep1, &bg, &sep2);
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if (count >= 1) {
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SP->_default_fg = (fg >= 0 && fg < max_colors) ? fg : C_MASK;
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if (count >= 3) {
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SP->_default_bg = (bg >= 0 && bg < max_colors) ? bg : C_MASK;
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}
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TR(TRACE_CHARPUT | TRACE_MOVE,
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("from environment assumed fg=%d, bg=%d",
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SP->_default_fg,
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SP->_default_bg));
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}
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}
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#if USE_COLORFGBG
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/*
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* If rxvt's $COLORFGBG variable is set, use it to specify the assumed
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* default colors. Note that rxvt (mis)uses bold colors, equating a bold
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* color to that value plus 8. We'll only use the non-bold color for now -
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* decide later if it is worth having default attributes as well.
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*/
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if (getenv("COLORFGBG") != 0) {
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char *p = getenv("COLORFGBG");
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TR(TRACE_CHARPUT | TRACE_MOVE, ("decoding COLORFGBG %s", p));
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p = extract_fgbg(p, &(SP->_default_fg));
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p = extract_fgbg(p, &(SP->_default_bg));
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if (*p) /* assume rxvt was compiled with xpm support */
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p = extract_fgbg(p, &(SP->_default_bg));
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TR(TRACE_CHARPUT | TRACE_MOVE, ("decoded fg=%d, bg=%d",
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SP->_default_fg, SP->_default_bg));
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if (SP->_default_fg >= max_colors) {
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if (set_a_foreground != ABSENT_STRING
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&& !strcmp(set_a_foreground, "\033[3%p1%dm")) {
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set_a_foreground = "\033[3%?%p1%{8}%>%t9%e%p1%d%;m";
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} else {
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SP->_default_fg %= max_colors;
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}
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}
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if (SP->_default_bg >= max_colors) {
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if (set_a_background != ABSENT_STRING
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&& !strcmp(set_a_background, "\033[4%p1%dm")) {
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set_a_background = "\033[4%?%p1%{8}%>%t9%e%p1%d%;m";
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} else {
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SP->_default_bg %= max_colors;
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}
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}
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}
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#endif
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#endif /* NCURSES_EXT_FUNCS */
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SP->_maxclick = DEFAULT_MAXCLICK;
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SP->_mouse_event = no_mouse_event;
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SP->_mouse_inline = no_mouse_inline;
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SP->_mouse_parse = no_mouse_parse;
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SP->_mouse_resume = no_mouse_resume;
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SP->_mouse_wrap = no_mouse_wrap;
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SP->_mouse_fd = -1;
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/*
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* If we've no magic cookie support, we suppress attributes that xmc would
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* affect, i.e., the attributes that affect the rendition of a space.
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*/
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SP->_ok_attributes = termattrs();
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if (has_colors()) {
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SP->_ok_attributes |= A_COLOR;
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}
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#if USE_XMC_SUPPORT
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/*
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* If we have no magic-cookie support compiled-in, or if it is suppressed
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* in the environment, reset the support-flag.
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*/
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if (magic_cookie_glitch >= 0) {
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if (getenv("NCURSES_NO_MAGIC_COOKIE") != 0) {
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support_cookies = FALSE;
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}
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}
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#endif
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if (!support_cookies && magic_cookie_glitch >= 0) {
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T(("will disable attributes to work w/o magic cookies"));
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}
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if (magic_cookie_glitch > 0) { /* tvi, wyse */
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SP->_xmc_triggers = SP->_ok_attributes & (
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A_STANDOUT |
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A_UNDERLINE |
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A_REVERSE |
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A_BLINK |
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A_DIM |
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A_BOLD |
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A_INVIS |
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A_PROTECT
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);
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#if 0
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/*
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* We "should" treat colors as an attribute. The wyse350 (and its
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* clones) appear to be the only ones that have both colors and magic
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* cookies.
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*/
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if (has_colors()) {
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SP->_xmc_triggers |= A_COLOR;
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}
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#endif
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SP->_xmc_suppress = SP->_xmc_triggers & (chtype) ~(A_BOLD);
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T(("magic cookie attributes %s", _traceattr(SP->_xmc_suppress)));
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/*
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* Supporting line-drawing may be possible. But make the regular
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* video attributes work first.
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*/
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acs_chars = ABSENT_STRING;
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ena_acs = ABSENT_STRING;
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enter_alt_charset_mode = ABSENT_STRING;
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exit_alt_charset_mode = ABSENT_STRING;
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#if USE_XMC_SUPPORT
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/*
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* To keep the cookie support simple, suppress all of the optimization
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* hooks except for clear_screen and the cursor addressing.
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*/
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if (support_cookies) {
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clr_eol = ABSENT_STRING;
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clr_eos = ABSENT_STRING;
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set_attributes = ABSENT_STRING;
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}
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#endif
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} else if (magic_cookie_glitch == 0) { /* hpterm */
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}
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/*
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* If magic cookies are not supported, cancel the strings that set
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* video attributes.
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*/
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if (!support_cookies && magic_cookie_glitch >= 0) {
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magic_cookie_glitch = ABSENT_NUMERIC;
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set_attributes = ABSENT_STRING;
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enter_blink_mode = ABSENT_STRING;
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enter_bold_mode = ABSENT_STRING;
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enter_dim_mode = ABSENT_STRING;
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enter_reverse_mode = ABSENT_STRING;
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enter_standout_mode = ABSENT_STRING;
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enter_underline_mode = ABSENT_STRING;
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}
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/* initialize normal acs before wide, since we use mapping in the latter */
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#if !USE_WIDEC_SUPPORT
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if (_nc_unicode_locale() && _nc_locale_breaks_acs(cur_term)) {
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acs_chars = NULL;
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ena_acs = NULL;
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enter_alt_charset_mode = NULL;
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exit_alt_charset_mode = NULL;
|
|
set_attributes = NULL;
|
|
}
|
|
#endif
|
|
_nc_init_acs();
|
|
#if USE_WIDEC_SUPPORT
|
|
_nc_init_wacs();
|
|
|
|
SP->_screen_acs_fix = (_nc_unicode_locale()
|
|
&& _nc_locale_breaks_acs(cur_term));
|
|
#endif
|
|
env = _nc_get_locale();
|
|
SP->_legacy_coding = ((env == 0)
|
|
|| !strcmp(env, "C")
|
|
|| !strcmp(env, "POSIX"));
|
|
T(("legacy-coding %d", SP->_legacy_coding));
|
|
|
|
_nc_idcok = TRUE;
|
|
_nc_idlok = FALSE;
|
|
|
|
SP->oldhash = 0;
|
|
SP->newhash = 0;
|
|
|
|
T(("creating newscr"));
|
|
if ((SP->_newscr = newwin(slines, scolumns, 0, 0)) == 0)
|
|
returnCode(ERR);
|
|
|
|
T(("creating curscr"));
|
|
if ((SP->_curscr = newwin(slines, scolumns, 0, 0)) == 0)
|
|
returnCode(ERR);
|
|
|
|
#if !USE_REENTRANT
|
|
newscr = SP->_newscr;
|
|
curscr = SP->_curscr;
|
|
#endif
|
|
#if USE_SIZECHANGE
|
|
SP->_resize = resizeterm;
|
|
#endif
|
|
|
|
newscr->_clear = TRUE;
|
|
curscr->_clear = FALSE;
|
|
|
|
def_shell_mode();
|
|
def_prog_mode();
|
|
|
|
for (rop = ripoff_stack;
|
|
rop != ripoff_sp && (rop - ripoff_stack) < N_RIPS;
|
|
rop++) {
|
|
|
|
/* If we must simulate soft labels, grab off the line to be used.
|
|
We assume that we must simulate, if it is none of the standard
|
|
formats (4-4 or 3-2-3) for which there may be some hardware
|
|
support. */
|
|
if (rop->hook == _nc_slk_initialize)
|
|
if (!(num_labels <= 0 || !SLK_STDFMT(slk_format)))
|
|
continue;
|
|
if (rop->hook) {
|
|
int count;
|
|
WINDOW *w;
|
|
|
|
count = (rop->line < 0) ? -rop->line : rop->line;
|
|
T(("ripping off %i lines at %s", count,
|
|
((rop->line < 0)
|
|
? "bottom"
|
|
: "top")));
|
|
|
|
w = newwin(count, scolumns,
|
|
((rop->line < 0)
|
|
? SP->_lines_avail - count
|
|
: 0),
|
|
0);
|
|
if (w) {
|
|
rop->win = w;
|
|
rop->hook(w, scolumns);
|
|
} else {
|
|
returnCode(ERR);
|
|
}
|
|
if (rop->line < 0)
|
|
bottom_stolen += count;
|
|
else
|
|
SP->_topstolen += count;
|
|
SP->_lines_avail -= count;
|
|
}
|
|
}
|
|
/* reset the stack */
|
|
ripoff_sp = ripoff_stack;
|
|
|
|
T(("creating stdscr"));
|
|
assert((SP->_lines_avail + SP->_topstolen + bottom_stolen) == slines);
|
|
if ((SP->_stdscr = newwin(SP->_lines_avail, scolumns, 0, 0)) == 0)
|
|
returnCode(ERR);
|
|
|
|
SET_LINES(SP->_lines_avail);
|
|
#if !USE_REENTRANT
|
|
stdscr = SP->_stdscr;
|
|
#endif
|
|
|
|
returnCode(OK);
|
|
}
|
|
|
|
/*
|
|
* The internal implementation interprets line as the number of lines to rip
|
|
* off from the top or bottom.
|
|
*/
|
|
NCURSES_EXPORT(int)
|
|
_nc_ripoffline(int line, int (*init) (WINDOW *, int))
|
|
{
|
|
T((T_CALLED("_nc_ripoffline(%d, %p)"), line, init));
|
|
|
|
if (line != 0) {
|
|
|
|
if (ripoff_sp == 0)
|
|
ripoff_sp = ripoff_stack;
|
|
if (ripoff_sp >= ripoff_stack + N_RIPS)
|
|
returnCode(ERR);
|
|
|
|
ripoff_sp->line = line;
|
|
ripoff_sp->hook = init;
|
|
ripoff_sp++;
|
|
}
|
|
|
|
returnCode(OK);
|
|
}
|
|
|
|
NCURSES_EXPORT(int)
|
|
ripoffline(int line, int (*init) (WINDOW *, int))
|
|
{
|
|
START_TRACE();
|
|
T((T_CALLED("ripoffline(%d,%p)"), line, init));
|
|
|
|
if (line == 0)
|
|
returnCode(OK);
|
|
|
|
returnCode(_nc_ripoffline((line < 0) ? -1 : 1, init));
|
|
}
|