X-Git-Url: https://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=ncurses%2Fbase%2Flib_set_term.c;h=b900a68e320805e49bda1db8d1c92e61a990368c;hp=443236cf9cdafadf0e163d846fbf4a65d098876b;hb=790a85dbd4a81d5f5d8dd02a44d84f01512ef443;hpb=0eb88fc5281804773e2a0c7a488a4452463535ce diff --git a/ncurses/base/lib_set_term.c b/ncurses/base/lib_set_term.c index 443236cf..b900a68e 100644 --- a/ncurses/base/lib_set_term.c +++ b/ncurses/base/lib_set_term.c @@ -1,5 +1,6 @@ /**************************************************************************** - * Copyright (c) 1998 Free Software Foundation, Inc. * + * Copyright 2018,2020 Thomas E. Dickey * + * Copyright 1998-2016,2017 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 * @@ -29,6 +30,8 @@ /**************************************************************************** * Author: Zeyd M. Ben-Halim 1992,1995 * * and: Eric S. Raymond * + * and: Thomas E. Dickey 1996-on * + * and: Juergen Pfeifer 2009 * ****************************************************************************/ /* @@ -39,74 +42,161 @@ */ #include +#include -#include /* cur_term */ +#undef CUR +#define CUR SP_TERMTYPE -MODULE_ID("$Id: lib_set_term.c,v 1.46 1999/07/24 20:05:49 tom Exp $") +MODULE_ID("$Id: lib_set_term.c,v 1.171 2020/05/23 19:13:12 tom Exp $") -SCREEN * set_term(SCREEN *screenp) +#ifdef USE_TERM_DRIVER +#define MaxColors InfoOf(sp).maxcolors +#define NumLabels InfoOf(sp).numlabels +#else +#define MaxColors max_colors +#define NumLabels num_labels +#endif + +NCURSES_EXPORT(SCREEN *) +set_term(SCREEN *screenp) { -SCREEN *oldSP; + SCREEN *oldSP; + SCREEN *newSP; + + T((T_CALLED("set_term(%p)"), (void *) screenp)); - T((T_CALLED("set_term(%p)"), screenp)); + _nc_lock_global(curses); + + oldSP = CURRENT_SCREEN; + _nc_set_screen(screenp); + newSP = screenp; + + if (newSP != 0) { + TINFO_SET_CURTERM(newSP, newSP->_term); +#if !USE_REENTRANT + curscr = CurScreen(newSP); + newscr = NewScreen(newSP); + stdscr = StdScreen(newSP); + COLORS = newSP->_color_count; + COLOR_PAIRS = newSP->_pair_count; +#endif + } else { + TINFO_SET_CURTERM(oldSP, 0); +#if !USE_REENTRANT + curscr = 0; + newscr = 0; + stdscr = 0; + COLORS = 0; + COLOR_PAIRS = 0; +#endif + } - oldSP = SP; - _nc_set_screen(screenp); + _nc_unlock_global(curses); - set_curterm(SP->_term); - curscr = SP->_curscr; - newscr = SP->_newscr; - stdscr = SP->_stdscr; - COLORS = SP->_color_count; - COLOR_PAIRS = SP->_pair_count; - memcpy(acs_map, SP->_acs_map, sizeof(chtype)*ACS_LEN); + T((T_RETURN("%p"), (void *) oldSP)); + return (oldSP); +} - T((T_RETURN("%p"), oldSP)); - return(oldSP); +static void +_nc_free_keytry(TRIES * kt) +{ + if (kt != 0) { + _nc_free_keytry(kt->child); + _nc_free_keytry(kt->sibling); + free(kt); + } } -static void _nc_free_keytry(struct tries *kt) +static bool +delink_screen(SCREEN *sp) { - if (kt != 0) { - _nc_free_keytry(kt->child); - _nc_free_keytry(kt->sibling); - free(kt); + SCREEN *last = 0; + SCREEN *temp; + bool result = FALSE; + + for (each_screen(temp)) { + if (temp == sp) { + if (last) + last->_next_screen = sp->_next_screen; + else + _nc_screen_chain = sp->_next_screen; + result = TRUE; + break; } + last = temp; + } + return result; } /* * Free the storage associated with the given SCREEN sp. */ -void delscreen(SCREEN *sp) +NCURSES_EXPORT(void) +delscreen(SCREEN *sp) { - SCREEN **scan = &_nc_screen_chain; - T((T_CALLED("delscreen(%p)"), sp)); + T((T_CALLED("delscreen(%p)"), (void *) sp)); + + _nc_lock_global(curses); + if (delink_screen(sp)) { +#ifdef USE_SP_RIPOFF + ripoff_t *rop; + if (safe_ripoff_sp && safe_ripoff_sp != safe_ripoff_stack) { + for (rop = safe_ripoff_stack; + rop != safe_ripoff_sp && (rop - safe_ripoff_stack) < N_RIPS; + rop++) { + if (rop->win) { + (void) delwin(rop->win); + rop->win = 0; + } + } + } +#endif + + (void) _nc_freewin(CurScreen(sp)); + (void) _nc_freewin(NewScreen(sp)); + (void) _nc_freewin(StdScreen(sp)); - while(*scan) - { - if (*scan == sp) - { - *scan = sp->_next_screen; - break; + if (sp->_slk != 0) { + + if (sp->_slk->ent != 0) { + int i; + + for (i = 0; i < sp->_slk->labcnt; ++i) { + FreeIfNeeded(sp->_slk->ent[i].ent_text); + FreeIfNeeded(sp->_slk->ent[i].form_text); + } + free(sp->_slk->ent); } - scan = &(*scan)->_next_screen; + free(sp->_slk); + sp->_slk = 0; } - _nc_freewin(sp->_curscr); - _nc_freewin(sp->_newscr); - _nc_freewin(sp->_stdscr); _nc_free_keytry(sp->_keytry); + sp->_keytry = 0; + _nc_free_keytry(sp->_key_ok); + sp->_key_ok = 0; + + FreeIfNeeded(sp->_current_attr); FreeIfNeeded(sp->_color_table); FreeIfNeeded(sp->_color_pairs); + FreeIfNeeded(sp->_oldnum_list); FreeIfNeeded(sp->oldhash); FreeIfNeeded(sp->newhash); + FreeIfNeeded(sp->hashtab); - del_curterm(sp->_term); + FreeIfNeeded(sp->_acs_map); + FreeIfNeeded(sp->_screen_acs_map); + NCURSES_SP_NAME(_nc_flush) (NCURSES_SP_ARG); + NCURSES_SP_NAME(del_curterm) (NCURSES_SP_ARGx sp->_term); + FreeIfNeeded(sp->out_buffer); + if (_nc_find_prescr() == sp) { + _nc_forget_prescr(); + } free(sp); /* @@ -114,202 +204,618 @@ void delscreen(SCREEN *sp) * application might try to use (except cur_term, which may have * multiple references in different screens). */ - if (sp == SP) { - curscr = 0; - newscr = 0; - stdscr = 0; - COLORS = 0; - COLOR_PAIRS = 0; - _nc_set_screen(0); + if (sp == CURRENT_SCREEN) { +#if !USE_REENTRANT + curscr = 0; + newscr = 0; + stdscr = 0; + COLORS = 0; + COLOR_PAIRS = 0; +#endif + _nc_set_screen(0); +#if USE_WIDEC_SUPPORT + if (SP == 0) { + FreeIfNeeded(_nc_wacs); + _nc_wacs = 0; + } +#endif } - returnVoid; + } + _nc_unlock_global(curses); + + returnVoid; +} + +static bool +no_mouse_event(SCREEN *sp GCC_UNUSED) +{ + return FALSE; +} + +static bool +no_mouse_inline(SCREEN *sp GCC_UNUSED) +{ + return FALSE; +} + +static bool +no_mouse_parse(SCREEN *sp GCC_UNUSED, int code GCC_UNUSED) +{ + return TRUE; +} + +static void +no_mouse_resume(SCREEN *sp GCC_UNUSED) +{ +} + +static void +no_mouse_wrap(SCREEN *sp GCC_UNUSED) +{ } -static ripoff_t rippedoff[5]; -static ripoff_t *rsp = rippedoff; -#define N_RIPS SIZEOF(rippedoff) +#if NCURSES_EXT_FUNCS && USE_COLORFGBG +static const char * +extract_fgbg(const char *src, int *result) +{ + const char *dst = 0; + char *tmp = 0; + long value = strtol(src, &tmp, 0); + + if ((dst = tmp) == 0) { + dst = src; + } else if (value >= 0) { + *result = (int) value; + } + while (*dst != 0 && *dst != ';') + dst++; + if (*dst == ';') + dst++; + return dst; +} +#endif -static bool no_mouse_event (SCREEN *sp GCC_UNUSED) { return FALSE; } -static bool no_mouse_inline(SCREEN *sp GCC_UNUSED) { return FALSE; } -static bool no_mouse_parse (int code GCC_UNUSED) { return TRUE; } -static void no_mouse_resume(SCREEN *sp GCC_UNUSED) { } -static void no_mouse_wrap (SCREEN *sp GCC_UNUSED) { } +#define ReturnScreenError() do { _nc_set_screen(0); \ + returnCode(ERR); } while (0) -int _nc_setupscreen(short slines, short const scolumns, FILE *output) /* OS-independent screen initializations */ +NCURSES_EXPORT(int) +NCURSES_SP_NAME(_nc_setupscreen) ( +#if NCURSES_SP_FUNCS + SCREEN **spp, +#endif + int slines, + int scolumns, + FILE *output, + int filtered, + int slk_format) { -int bottom_stolen = 0; -size_t i; - - assert(SP==0); /* has been reset in newterm() ! */ - if (!_nc_alloc_screen()) - return ERR; - - SP->_next_screen = _nc_screen_chain; - _nc_screen_chain = SP; - - _nc_set_buffer(output, TRUE); - SP->_term = cur_term; - SP->_lines = slines; - SP->_lines_avail = slines; - SP->_columns = scolumns; - SP->_cursrow = -1; - SP->_curscol = -1; - SP->_nl = TRUE; - SP->_raw = FALSE; - SP->_cbreak = 0; - SP->_echo = TRUE; - SP->_fifohead = -1; - SP->_endwin = TRUE; - SP->_ofp = output; - SP->_cursor = -1; /* cannot know real cursor shape */ -#ifdef NCURSES_NO_PADDING - SP->_no_padding = getenv("NCURSES_NO_PADDING") != 0; +#ifndef USE_TERM_DRIVER + static const TTY null_TTY; /* all zeros iff uninitialized */ +#endif + char *env; + int bottom_stolen = 0; + SCREEN *sp; +#ifndef USE_TERM_DRIVER + bool support_cookies = USE_XMC_SUPPORT; #endif - SP->_maxclick = DEFAULT_MAXCLICK; - SP->_mouse_event = no_mouse_event; - SP->_mouse_inline = no_mouse_inline; - SP->_mouse_parse = no_mouse_parse; - SP->_mouse_resume = no_mouse_resume; - SP->_mouse_wrap = no_mouse_wrap; - SP->_mouse_fd = -1; + T((T_CALLED("_nc_setupscreen(%d, %d, %p, %d, %d)"), + slines, scolumns, (void *) output, filtered, slk_format)); + + assert(CURRENT_SCREEN == 0); /* has been reset in newterm() ! */ + +#if NCURSES_SP_FUNCS + assert(spp != 0); + sp = *spp; + + if (!sp) { + sp = _nc_alloc_screen_sp(); + T(("_nc_alloc_screen_sp %p", (void *) sp)); + *spp = sp; + } + if (!sp + || ((sp->_acs_map = typeCalloc(chtype, ACS_LEN)) == 0) + || ((sp->_screen_acs_map = typeCalloc(bool, ACS_LEN)) == 0)) { + ReturnScreenError(); + } + + T(("created SP %p", (void *) sp)); + sp->_next_screen = _nc_screen_chain; + _nc_screen_chain = sp; + + if ((sp->_current_attr = typeCalloc(NCURSES_CH_T, 1)) == 0) { + ReturnScreenError(); + } +#else + if (!_nc_alloc_screen() + || ((SP->_acs_map = typeCalloc(chtype, ACS_LEN)) == 0) + || ((SP->_screen_acs_map = typeCalloc(bool, ACS_LEN)) == 0)) { + returnCode(ERR); + } - /* initialize the panel hooks */ - SP->_panelHook.top_panel = (struct panel*)0; - SP->_panelHook.bottom_panel = (struct panel*)0; - SP->_panelHook.stdscr_pseudo_panel = (struct panel*)0; + T(("created SP %p", (void *) SP)); - /* - * If we've no magic cookie support, we suppress attributes that xmc - * would affect, i.e., the attributes that affect the rendition of a - * space. Note that this impacts the alternate character set mapping - * as well. - */ - if (magic_cookie_glitch > 0) { - - SP->_xmc_triggers = termattrs() & ( - A_ALTCHARSET | - A_BLINK | - A_BOLD | - A_REVERSE | - A_STANDOUT | - A_UNDERLINE - ); - SP->_xmc_suppress = SP->_xmc_triggers & (chtype)~(A_BOLD); - - T(("magic cookie attributes %s", _traceattr(SP->_xmc_suppress))); -#if USE_XMC_SUPPORT - /* - * To keep this simple, suppress all of the optimization hooks - * except for clear_screen and the cursor addressing. - */ - clr_eol = 0; - clr_eos = 0; - set_attributes = 0; + sp = SP; /* fixup so SET_LINES and SET_COLS works */ + sp->_next_screen = _nc_screen_chain; + _nc_screen_chain = sp; + + if ((sp->_current_attr = typeCalloc(NCURSES_CH_T, 1)) == 0) { + returnCode(ERR); + } +#endif + + /* + * We should always check the screensize, just in case. + */ + _nc_set_screen(sp); + sp->_term = cur_term; +#ifdef USE_TERM_DRIVER + TCBOf(sp)->csp = sp; + _nc_get_screensize(sp, sp->_term, &slines, &scolumns); #else - magic_cookie_glitch = -1; - acs_chars = 0; + _nc_get_screensize(sp, &slines, &scolumns); #endif - } - _nc_init_acs(); - memcpy(SP->_acs_map, acs_map, sizeof(chtype)*ACS_LEN); + SET_LINES(slines); + SET_COLS(scolumns); + + T((T_CREATE("screen %s %dx%d"), + NCURSES_SP_NAME(termname) (NCURSES_SP_ARG), slines, scolumns)); + + sp->_filtered = filtered; + + /* implement filter mode */ + if (filtered) { + slines = 1; + SET_LINES(slines); +#ifdef USE_TERM_DRIVER + CallDriver(sp, td_setfilter); +#else + /* *INDENT-EQLS* */ + clear_screen = ABSENT_STRING; + cursor_address = ABSENT_STRING; + cursor_down = ABSENT_STRING; + cursor_up = ABSENT_STRING; + parm_down_cursor = ABSENT_STRING; + parm_up_cursor = ABSENT_STRING; + row_address = ABSENT_STRING; + cursor_home = carriage_return; + + if (back_color_erase) + clr_eos = ABSENT_STRING; - _nc_idcok = TRUE; - _nc_idlok = FALSE; +#endif + T(("filter screensize %dx%d", slines, scolumns)); + } +#ifdef __DJGPP__ + T(("setting output mode to binary")); + fflush(output); + setmode(output, O_BINARY); +#endif + NCURSES_SP_NAME(_nc_set_buffer) (NCURSES_SP_ARGx output, TRUE); + sp->_lines = (NCURSES_SIZE_T) slines; + sp->_lines_avail = (NCURSES_SIZE_T) slines; + sp->_columns = (NCURSES_SIZE_T) scolumns; + + fflush(output); + sp->_ofd = output ? fileno(output) : -1; + sp->_ofp = output; + sp->out_limit = (size_t) ((2 + slines) * (6 + scolumns)); + if ((sp->out_buffer = malloc(sp->out_limit)) == 0) + sp->out_limit = 0; + sp->out_inuse = 0; + + SP_PRE_INIT(sp); + SetNoPadding(sp); + +#if NCURSES_EXT_FUNCS + sp->_default_color = FALSE; + sp->_has_sgr_39_49 = FALSE; + + /* + * Set our assumption of the terminal's default foreground and background + * colors. The curs_color man-page states that we can assume that the + * background is black. The origin of this assumption appears to be + * terminals that displayed colored text, but no colored backgrounds, e.g., + * the first colored terminals around 1980. More recent ones with better + * technology can display not only colored backgrounds, but all + * combinations. So a terminal might be something other than "white" on + * black (green/black looks monochrome too), but black on white or even + * on ivory. + * + * White-on-black is the simplest thing to use for monochrome. Almost + * all applications that use color paint both text and background, so + * the distinction is moot. But a few do not - which is why we leave this + * configurable (a better solution is to use assume_default_colors() for + * the rare applications that do require that sort of appearance, since + * is appears that more users expect to be able to make a white-on-black + * or black-on-white display under control of the application than not). + */ +#ifdef USE_ASSUMED_COLOR + sp->_default_fg = COLOR_WHITE; + sp->_default_bg = COLOR_BLACK; +#else + sp->_default_fg = COLOR_DEFAULT; + sp->_default_bg = COLOR_DEFAULT; +#endif - _nc_windows = 0; /* no windows yet */ + /* + * Allow those assumed/default color assumptions to be overridden at + * runtime: + */ + if ((env = getenv("NCURSES_ASSUMED_COLORS")) != 0) { + int fg, bg; + char sep1, sep2; + int count = sscanf(env, "%d%c%d%c", &fg, &sep1, &bg, &sep2); + if (count >= 1) { + sp->_default_fg = ((fg >= 0 && fg < MaxColors) ? fg : COLOR_DEFAULT); + if (count >= 3) { + sp->_default_bg = ((bg >= 0 && bg < MaxColors) ? bg : COLOR_DEFAULT); + } + TR(TRACE_CHARPUT | TRACE_MOVE, + ("from environment assumed fg=%d, bg=%d", + sp->_default_fg, + sp->_default_bg)); + } + } +#if USE_COLORFGBG + /* + * If rxvt's $COLORFGBG variable is set, use it to specify the assumed + * default colors. Note that rxvt (mis)uses bold colors, equating a bold + * color to that value plus 8. We'll only use the non-bold color for now - + * decide later if it is worth having default attributes as well. + */ + if (getenv("COLORFGBG") != 0) { + const char *p = getenv("COLORFGBG"); + TR(TRACE_CHARPUT | TRACE_MOVE, ("decoding COLORFGBG %s", p)); + p = extract_fgbg(p, &(sp->_default_fg)); + p = extract_fgbg(p, &(sp->_default_bg)); + if (*p) /* assume rxvt was compiled with xpm support */ + p = extract_fgbg(p, &(sp->_default_bg)); + TR(TRACE_CHARPUT | TRACE_MOVE, ("decoded fg=%d, bg=%d", + sp->_default_fg, sp->_default_bg)); + if (sp->_default_fg >= MaxColors) { + if (set_a_foreground != ABSENT_STRING + && !strcmp(set_a_foreground, "\033[3%p1%dm")) { + set_a_foreground = strdup("\033[3%?%p1%{8}%>%t9%e%p1%d%;m"); + } else { + sp->_default_fg %= MaxColors; + } + } + if (sp->_default_bg >= MaxColors) { + if (set_a_background != ABSENT_STRING + && !strcmp(set_a_background, "\033[4%p1%dm")) { + set_a_background = strdup("\033[4%?%p1%{8}%>%t9%e%p1%d%;m"); + } else { + sp->_default_bg %= MaxColors; + } + } + } +#endif +#endif /* NCURSES_EXT_FUNCS */ + + sp->_maxclick = DEFAULT_MAXCLICK; + sp->_mouse_event = no_mouse_event; + sp->_mouse_inline = no_mouse_inline; + sp->_mouse_parse = no_mouse_parse; + sp->_mouse_resume = no_mouse_resume; + sp->_mouse_wrap = no_mouse_wrap; + sp->_mouse_fd = -1; + + /* + * If we've no magic cookie support, we suppress attributes that xmc would + * affect, i.e., the attributes that affect the rendition of a space. + */ + sp->_ok_attributes = NCURSES_SP_NAME(termattrs) (NCURSES_SP_ARG); + if (NCURSES_SP_NAME(has_colors) (NCURSES_SP_ARG)) { + sp->_ok_attributes |= A_COLOR; + } +#ifdef USE_TERM_DRIVER + _nc_cookie_init(sp); +#else +#if USE_XMC_SUPPORT + /* + * If we have no magic-cookie support compiled-in, or if it is suppressed + * in the environment, reset the support-flag. + */ + if (magic_cookie_glitch >= 0) { + if (getenv("NCURSES_NO_MAGIC_COOKIE") != 0) { + support_cookies = FALSE; + } + } +#endif - SP->oldhash = 0; - SP->newhash = 0; + if (!support_cookies && magic_cookie_glitch >= 0) { + T(("will disable attributes to work w/o magic cookies")); + } - T(("creating newscr")); - if ((newscr = newwin(slines, scolumns, 0, 0)) == 0) - return ERR; + if (magic_cookie_glitch > 0) { /* tvi, wyse */ + + sp->_xmc_triggers = sp->_ok_attributes & XMC_CONFLICT; +#if 0 + /* + * We "should" treat colors as an attribute. The wyse350 (and its + * clones) appear to be the only ones that have both colors and magic + * cookies. + */ + if (has_colors()) { + sp->_xmc_triggers |= A_COLOR; + } +#endif + sp->_xmc_suppress = sp->_xmc_triggers & (chtype) ~(A_BOLD); - T(("creating curscr")); - if ((curscr = newwin(slines, scolumns, 0, 0)) == 0) - return ERR; + T(("magic cookie attributes %s", _traceattr(sp->_xmc_suppress))); + /* + * Supporting line-drawing may be possible. But make the regular + * video attributes work first. + */ + acs_chars = ABSENT_STRING; + ena_acs = ABSENT_STRING; + enter_alt_charset_mode = ABSENT_STRING; + exit_alt_charset_mode = ABSENT_STRING; +#if USE_XMC_SUPPORT + /* + * To keep the cookie support simple, suppress all of the optimization + * hooks except for clear_screen and the cursor addressing. + */ + if (support_cookies) { + clr_eol = ABSENT_STRING; + clr_eos = ABSENT_STRING; + set_attributes = ABSENT_STRING; + } +#endif + } else if (magic_cookie_glitch == 0) { /* hpterm */ + } + + /* + * If magic cookies are not supported, cancel the strings that set + * video attributes. + */ + if (!support_cookies && magic_cookie_glitch >= 0) { + magic_cookie_glitch = ABSENT_NUMERIC; + set_attributes = ABSENT_STRING; + enter_blink_mode = ABSENT_STRING; + enter_bold_mode = ABSENT_STRING; + enter_dim_mode = ABSENT_STRING; + enter_reverse_mode = ABSENT_STRING; + enter_standout_mode = ABSENT_STRING; + enter_underline_mode = ABSENT_STRING; + } + + /* initialize normal acs before wide, since we use mapping in the latter */ +#if !USE_WIDEC_SUPPORT + if (_nc_unicode_locale() && _nc_locale_breaks_acs(sp->_term)) { + acs_chars = NULL; + ena_acs = NULL; + enter_alt_charset_mode = NULL; + exit_alt_charset_mode = NULL; + set_attributes = NULL; + } +#endif +#endif - SP->_newscr = newscr; - SP->_curscr = curscr; + NCURSES_SP_NAME(_nc_init_acs) (NCURSES_SP_ARG); +#if USE_WIDEC_SUPPORT + sp->_screen_unicode = _nc_unicode_locale(); + if (_nc_wacs == 0) { + _nc_init_wacs(); + } + if (_nc_wacs == 0) { + ReturnScreenError(); + } + + sp->_screen_acs_fix = (sp->_screen_unicode + && _nc_locale_breaks_acs(sp->_term)); +#endif + env = _nc_get_locale(); + sp->_legacy_coding = ((env == 0) + || !strcmp(env, "C") + || !strcmp(env, "POSIX")); + T(("legacy-coding %d", sp->_legacy_coding)); + + sp->_nc_sp_idcok = TRUE; + sp->_nc_sp_idlok = FALSE; + + sp->oldhash = 0; + sp->newhash = 0; + + T(("creating newscr")); + NewScreen(sp) = NCURSES_SP_NAME(newwin) (NCURSES_SP_ARGx slines, scolumns, + 0, 0); + if (NewScreen(sp) == 0) { + ReturnScreenError(); + } + T(("creating curscr")); + CurScreen(sp) = NCURSES_SP_NAME(newwin) (NCURSES_SP_ARGx slines, scolumns, + 0, 0); + if (CurScreen(sp) == 0) { + ReturnScreenError(); + } +#if !USE_REENTRANT + newscr = NewScreen(sp); + curscr = CurScreen(sp); +#endif #if USE_SIZECHANGE - SP->_resize = resizeterm; + sp->_resize = NCURSES_SP_NAME(resizeterm); + sp->_ungetch = safe_ungetch; #endif - newscr->_clear = TRUE; - curscr->_clear = FALSE; - - for (i=0, rsp = rippedoff; rsp->line && (i < N_RIPS); rsp++, i++) { - if (rsp->hook) { - WINDOW *w; - int count = (rsp->line < 0) ? -rsp->line : rsp->line; - - if (rsp->line < 0) { - w = newwin(count,scolumns,SP->_lines_avail - count,0); - if (w) { - rsp->w = w; - rsp->hook(w, scolumns); - bottom_stolen += count; - } - else - return ERR; - } else { - w = newwin(count,scolumns, 0, 0); - if (w) { - rsp->w = w; - rsp->hook(w, scolumns); - SP->_topstolen += count; - } - else - return ERR; - } - SP->_lines_avail -= count; - } - rsp->line = 0; + NewScreen(sp)->_clear = TRUE; + CurScreen(sp)->_clear = FALSE; + + /* + * Get the current tty-modes. setupterm() may already have done this, + * unless we use the term-driver. + */ +#ifndef USE_TERM_DRIVER + if (cur_term != 0 && + !memcmp(&cur_term->Ottyb, &null_TTY, sizeof(TTY))) +#endif + { + NCURSES_SP_NAME(def_shell_mode) (NCURSES_SP_ARG); + NCURSES_SP_NAME(def_prog_mode) (NCURSES_SP_ARG); + } + + if (safe_ripoff_sp && safe_ripoff_sp != safe_ripoff_stack) { + ripoff_t *rop; + + for (rop = safe_ripoff_stack; + rop != safe_ripoff_sp && (rop - safe_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 (!(NumLabels <= 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 = NCURSES_SP_NAME(newwin) (NCURSES_SP_ARGx + count, scolumns, + ((rop->line < 0) + ? sp->_lines_avail - count + : 0), + 0); + if (w) { + rop->win = w; + rop->hook(w, scolumns); + } else { + ReturnScreenError(); + } + if (rop->line < 0) { + bottom_stolen += count; + } else { + sp->_topstolen = (NCURSES_SIZE_T) (sp->_topstolen + count); + } + sp->_lines_avail = (NCURSES_SIZE_T) (sp->_lines_avail - count); + } } /* reset the stack */ - rsp = rippedoff; - - T(("creating stdscr")); - assert ((SP->_lines_avail + SP->_topstolen + bottom_stolen) == slines); - if ((stdscr = newwin(LINES = SP->_lines_avail, scolumns, 0, 0)) == 0) - return ERR; - SP->_stdscr = stdscr; - - def_shell_mode(); - def_prog_mode(); + safe_ripoff_sp = safe_ripoff_stack; + } + + T(("creating stdscr")); + assert((sp->_lines_avail + sp->_topstolen + bottom_stolen) == slines); + if ((StdScreen(sp) = NCURSES_SP_NAME(newwin) (NCURSES_SP_ARGx + sp->_lines_avail, + scolumns, 0, 0)) == 0) { + ReturnScreenError(); + } + SET_LINES(sp->_lines_avail); +#if !USE_REENTRANT + stdscr = StdScreen(sp); +#endif + sp->_prescreen = FALSE; + returnCode(OK); +} - return OK; +#if NCURSES_SP_FUNCS +NCURSES_EXPORT(int) +_nc_setupscreen(int slines GCC_UNUSED, + int scolumns GCC_UNUSED, + FILE *output, + int filtered, + int slk_format) +{ + SCREEN *sp = 0; + int rc = NCURSES_SP_NAME(_nc_setupscreen) (&sp, + slines, + scolumns, + output, + filtered, + slk_format); + if (rc != OK) + _nc_set_screen(0); + return rc; } +#endif -/* The internal implementation interprets line as the number of - lines to rip off from the top or bottom. - */ -int -_nc_ripoffline(int line, int (*init)(WINDOW *,int)) +/* + * The internal implementation interprets line as the number of lines to rip + * off from the top or bottom. + */ +NCURSES_EXPORT(int) +NCURSES_SP_NAME(_nc_ripoffline) (NCURSES_SP_DCLx + int line, + int (*init) (WINDOW *, int)) { - if (line == 0) - return(OK); + int code = ERR; + TR_FUNC_BFR(1); - if (rsp >= rippedoff + N_RIPS) - return(ERR); + START_TRACE(); + T((T_CALLED("ripoffline(%p,%d,%s)"), + (void *) SP_PARM, line, + TR_FUNC_ARG(0, init))); - rsp->line = line; - rsp->hook = init; - rsp->w = 0; - rsp++; +#if NCURSES_SP_FUNCS + if (SP_PARM != 0 && SP_PARM->_prescreen) +#endif + { + if (line == 0) { + code = OK; + } else { + if (safe_ripoff_sp == 0) { + safe_ripoff_sp = safe_ripoff_stack; + } + if (safe_ripoff_sp < safe_ripoff_stack + N_RIPS) { + safe_ripoff_sp->line = line; + safe_ripoff_sp->hook = init; + (safe_ripoff_sp)++; + T(("ripped-off %d:%d chunks", + (int) (safe_ripoff_sp - safe_ripoff_stack), N_RIPS)); + code = OK; + } + } + } - return(OK); + returnCode(code); } -int -ripoffline(int line, int (*init)(WINDOW *, int)) +#if NCURSES_SP_FUNCS +NCURSES_EXPORT(int) +_nc_ripoffline(int line, int (*init) (WINDOW *, int)) { - T((T_CALLED("ripoffline(%d,%p)"), line, init)); + int rc; + _nc_lock_global(prescreen); + START_TRACE(); + rc = NCURSES_SP_NAME(_nc_ripoffline) (CURRENT_SCREEN_PRE, line, init); + _nc_unlock_global(prescreen); + return rc; +} +#endif - if (line == 0) - returnCode(OK); +NCURSES_EXPORT(int) +NCURSES_SP_NAME(ripoffline) (NCURSES_SP_DCLx + int line, + int (*init) (WINDOW *, int)) +{ + START_TRACE(); + return NCURSES_SP_NAME(_nc_ripoffline) (NCURSES_SP_ARGx + (line < 0) ? -1 : 1, + init); +} - returnCode(_nc_ripoffline ((line<0) ? -1 : 1, init)); +#if NCURSES_SP_FUNCS +NCURSES_EXPORT(int) +ripoffline(int line, int (*init) (WINDOW *, int)) +{ + int rc; + _nc_lock_global(prescreen); + START_TRACE(); + rc = NCURSES_SP_NAME(ripoffline) (CURRENT_SCREEN_PRE, line, init); + _nc_unlock_global(prescreen); + return rc; } +#endif