diff options
Diffstat (limited to 'contrib/ncurses/ncurses/base/lib_set_term.c')
| -rw-r--r-- | contrib/ncurses/ncurses/base/lib_set_term.c | 315 |
1 files changed, 315 insertions, 0 deletions
diff --git a/contrib/ncurses/ncurses/base/lib_set_term.c b/contrib/ncurses/ncurses/base/lib_set_term.c new file mode 100644 index 000000000000..443236cf9cda --- /dev/null +++ b/contrib/ncurses/ncurses/base/lib_set_term.c @@ -0,0 +1,315 @@ +/**************************************************************************** + * Copyright (c) 1998 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 * + * "Software"), to deal in the Software without restriction, including * + * without limitation the rights to use, copy, modify, merge, publish, * + * distribute, distribute with modifications, sublicense, and/or sell * + * copies of the Software, and to permit persons to whom the Software is * + * furnished to do so, subject to the following conditions: * + * * + * The above copyright notice and this permission notice shall be included * + * in all copies or substantial portions of the Software. * + * * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * + * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * + * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * + * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * + * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * + * * + * Except as contained in this notice, the name(s) of the above copyright * + * holders shall not be used in advertising or otherwise to promote the * + * sale, use or other dealings in this Software without prior written * + * authorization. * + ****************************************************************************/ + +/**************************************************************************** + * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 * + * and: Eric S. Raymond <esr@snark.thyrsus.com> * + ****************************************************************************/ + +/* +** lib_set_term.c +** +** The routine set_term(). +** +*/ + +#include <curses.priv.h> + +#include <term.h> /* cur_term */ + +MODULE_ID("$Id: lib_set_term.c,v 1.46 1999/07/24 20:05:49 tom Exp $") + +SCREEN * set_term(SCREEN *screenp) +{ +SCREEN *oldSP; + + T((T_CALLED("set_term(%p)"), screenp)); + + oldSP = SP; + _nc_set_screen(screenp); + + 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"), oldSP)); + return(oldSP); +} + +static void _nc_free_keytry(struct tries *kt) +{ + if (kt != 0) { + _nc_free_keytry(kt->child); + _nc_free_keytry(kt->sibling); + free(kt); + } +} + +/* + * Free the storage associated with the given SCREEN sp. + */ +void delscreen(SCREEN *sp) +{ + SCREEN **scan = &_nc_screen_chain; + + T((T_CALLED("delscreen(%p)"), sp)); + + while(*scan) + { + if (*scan == sp) + { + *scan = sp->_next_screen; + break; + } + scan = &(*scan)->_next_screen; + } + + _nc_freewin(sp->_curscr); + _nc_freewin(sp->_newscr); + _nc_freewin(sp->_stdscr); + _nc_free_keytry(sp->_keytry); + _nc_free_keytry(sp->_key_ok); + + FreeIfNeeded(sp->_color_table); + FreeIfNeeded(sp->_color_pairs); + + FreeIfNeeded(sp->oldhash); + FreeIfNeeded(sp->newhash); + + del_curterm(sp->_term); + + free(sp); + + /* + * If this was the current screen, reset everything that the + * 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); + } + returnVoid; +} + +static ripoff_t rippedoff[5]; +static ripoff_t *rsp = rippedoff; +#define N_RIPS SIZEOF(rippedoff) + +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) { } + +int _nc_setupscreen(short slines, short const scolumns, FILE *output) +/* OS-independent screen initializations */ +{ +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; +#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; + + /* 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; + + /* + * 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; +#else + magic_cookie_glitch = -1; + acs_chars = 0; +#endif + } + _nc_init_acs(); + memcpy(SP->_acs_map, acs_map, sizeof(chtype)*ACS_LEN); + + _nc_idcok = TRUE; + _nc_idlok = FALSE; + + _nc_windows = 0; /* no windows yet */ + + SP->oldhash = 0; + SP->newhash = 0; + + T(("creating newscr")); + if ((newscr = newwin(slines, scolumns, 0, 0)) == 0) + return ERR; + + T(("creating curscr")); + if ((curscr = newwin(slines, scolumns, 0, 0)) == 0) + return ERR; + + SP->_newscr = newscr; + SP->_curscr = curscr; +#if USE_SIZECHANGE + SP->_resize = resizeterm; +#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; + } + /* 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(); + + return OK; +} + +/* 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)) +{ + if (line == 0) + return(OK); + + if (rsp >= rippedoff + N_RIPS) + return(ERR); + + rsp->line = line; + rsp->hook = init; + rsp->w = 0; + rsp++; + + return(OK); +} + +int +ripoffline(int line, int (*init)(WINDOW *, int)) +{ + T((T_CALLED("ripoffline(%d,%p)"), line, init)); + + if (line == 0) + returnCode(OK); + + returnCode(_nc_ripoffline ((line<0) ? -1 : 1, init)); +} |