]> ncurses.scripts.mit.edu Git - ncurses.git/blobdiff - ncurses/base/lib_set_term.c
ncurses 6.0 - patch 20160625
[ncurses.git] / ncurses / base / lib_set_term.c
index 9bb46fc7f8b4849cccabf3789b8f5b91cf15c4f1..3a7476d4d040e0980ee4a357258cc5f43865bb83 100644 (file)
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright (c) 1998-2008,2009 Free Software Foundation, Inc.              *
+ * Copyright (c) 1998-2015,2016 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            *
@@ -47,7 +47,7 @@
 #define CUR SP_TERMTYPE
 #endif
 
-MODULE_ID("$Id: lib_set_term.c,v 1.131 2009/10/31 22:28:04 tom Exp $")
+MODULE_ID("$Id: lib_set_term.c,v 1.155 2016/05/28 21:33:38 tom Exp $")
 
 #ifdef USE_TERM_DRIVER
 #define MaxColors      InfoOf(sp).maxcolors
@@ -74,9 +74,9 @@ set_term(SCREEN *screenp)
     if (newSP != 0) {
        TINFO_SET_CURTERM(newSP, newSP->_term);
 #if !USE_REENTRANT
-       curscr = newSP->_curscr;
-       newscr = newSP->_newscr;
-       stdscr = newSP->_stdscr;
+       curscr = CurScreen(newSP);
+       newscr = NewScreen(newSP);
+       stdscr = StdScreen(newSP);
        COLORS = newSP->_color_count;
        COLOR_PAIRS = newSP->_pair_count;
 #endif
@@ -117,7 +117,7 @@ delink_screen(SCREEN *sp)
     for (each_screen(temp)) {
        if (temp == sp) {
            if (last)
-               last = sp->_next_screen;
+               last->_next_screen = sp->_next_screen;
            else
                _nc_screen_chain = sp->_next_screen;
            result = TRUE;
@@ -134,7 +134,6 @@ delink_screen(SCREEN *sp)
 NCURSES_EXPORT(void)
 delscreen(SCREEN *sp)
 {
-    int i;
 
     T((T_CALLED("delscreen(%p)"), (void *) sp));
 
@@ -154,12 +153,15 @@ delscreen(SCREEN *sp)
        }
 #endif
 
-       (void) _nc_freewin(sp->_curscr);
-       (void) _nc_freewin(sp->_newscr);
-       (void) _nc_freewin(sp->_stdscr);
+       (void) _nc_freewin(CurScreen(sp));
+       (void) _nc_freewin(NewScreen(sp));
+       (void) _nc_freewin(StdScreen(sp));
 
        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);
@@ -188,19 +190,9 @@ delscreen(SCREEN *sp)
        FreeIfNeeded(sp->_acs_map);
        FreeIfNeeded(sp->_screen_acs_map);
 
-       /*
-        * If the associated output stream has been closed, we can discard the
-        * set-buffer.  Limit the error check to EBADF, since fflush may fail
-        * for other reasons than trying to operate upon a closed stream.
-        */
-       if (sp->_ofp != 0
-           && sp->_setbuf != 0
-           && fflush(sp->_ofp) != 0
-           && errno == EBADF) {
-           free(sp->_setbuf);
-       }
-
+       NCURSES_SP_NAME(_nc_flush) (NCURSES_SP_ARG);
        NCURSES_SP_NAME(del_curterm) (NCURSES_SP_ARGx sp->_term);
+       FreeIfNeeded(sp->out_buffer);
        free(sp);
 
        /*
@@ -217,6 +209,12 @@ delscreen(SCREEN *sp)
            COLOR_PAIRS = 0;
 #endif
            _nc_set_screen(0);
+#if USE_WIDEC_SUPPORT
+           if (SP == 0) {
+               FreeIfNeeded(_nc_wacs);
+               _nc_wacs = 0;
+           }
+#endif
        }
     }
     _nc_unlock_global(curses);
@@ -253,13 +251,14 @@ no_mouse_wrap(SCREEN *sp GCC_UNUSED)
 }
 
 #if NCURSES_EXT_FUNCS && USE_COLORFGBG
-static char *
-extract_fgbg(char *src, int *result)
+static const char *
+extract_fgbg(const char *src, int *result)
 {
-    char *dst = 0;
-    long value = strtol(src, &dst, 0);
+    const char *dst = 0;
+    char *tmp = 0;
+    long value = strtol(src, &tmp, 0);
 
-    if (dst == 0) {
+    if ((dst = tmp) == 0) {
        dst = src;
     } else if (value >= 0) {
        *result = value;
@@ -272,46 +271,8 @@ extract_fgbg(char *src, int *result)
 }
 #endif
 
-#if NCURSES_SP_FUNCS
-/*
- * In case of handling multiple screens, we need to have a screen before
- * initialization in setupscreen takes place.  This is to extend the substitute
- * for some of the stuff in _nc_prescreen, especially for slk and ripoff
- * handling which should be done per screen.
- */
-NCURSES_EXPORT(SCREEN *)
-new_prescr(void)
-{
-    static SCREEN *sp;
-
-    START_TRACE();
-    T((T_CALLED("new_prescr()")));
-
-    if (sp == 0) {
-       sp = _nc_alloc_screen_sp();
-       if (sp != 0) {
-           sp->rsp = sp->rippedoff;
-           sp->_filtered = _nc_prescreen.filter_mode;
-           sp->_use_env = _nc_prescreen.use_env;
-#if NCURSES_NO_PADDING
-           sp->_no_padding = _nc_prescreen._no_padding;
-#endif
-           sp->slk_format = 0;
-           sp->_slk = 0;
-           sp->_prescreen = TRUE;
-           SP_PRE_INIT(sp);
-#if USE_REENTRANT
-           sp->_TABSIZE = _nc_prescreen._TABSIZE;
-           sp->_ESCDELAY = _nc_prescreen._ESCDELAY;
-#endif
-       }
-    }
-    returnSP(sp);
-}
-#endif
-
-#define ReturnScreenError() _nc_set_screen(0); \
-                            returnCode(ERR)
+#define ReturnScreenError() do { _nc_set_screen(0); \
+                            returnCode(ERR); } while (0)
 
 /* OS-independent screen initializations */
 NCURSES_EXPORT(int)
@@ -322,12 +283,11 @@ NCURSES_SP_NAME(_nc_setupscreen) (
                                     int slines,
                                     int scolumns,
                                     FILE *output,
-                                    bool filtered,
+                                    int filtered,
                                     int slk_format)
 {
     char *env;
     int bottom_stolen = 0;
-    ripoff_t *rop;
     SCREEN *sp;
 #ifndef USE_TERM_DRIVER
     bool support_cookies = USE_XMC_SUPPORT;
@@ -352,7 +312,7 @@ NCURSES_SP_NAME(_nc_setupscreen) (
        ReturnScreenError();
     }
 
-    T(("created SP %p", sp));
+    T(("created SP %p", (void *) sp));
     sp->_next_screen = _nc_screen_chain;
     _nc_screen_chain = sp;
 
@@ -400,7 +360,7 @@ NCURSES_SP_NAME(_nc_setupscreen) (
        slines = 1;
        SET_LINES(slines);
 #ifdef USE_TERM_DRIVER
-       CallDriver(sp, setfilter);
+       CallDriver(sp, td_setfilter);
 #else
        clear_screen = 0;
        cursor_down = parm_down_cursor = 0;
@@ -418,10 +378,18 @@ NCURSES_SP_NAME(_nc_setupscreen) (
     setmode(output, O_BINARY);
 #endif
     NCURSES_SP_NAME(_nc_set_buffer) (NCURSES_SP_ARGx output, TRUE);
-    sp->_lines = slines;
-    sp->_lines_avail = slines;
-    sp->_columns = scolumns;
+    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);
 
@@ -483,7 +451,7 @@ NCURSES_SP_NAME(_nc_setupscreen) (
      * decide later if it is worth having default attributes as well.
      */
     if (getenv("COLORFGBG") != 0) {
-       char *p = getenv("COLORFGBG");
+       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));
@@ -494,7 +462,7 @@ NCURSES_SP_NAME(_nc_setupscreen) (
        if (sp->_default_fg >= MaxColors) {
            if (set_a_foreground != ABSENT_STRING
                && !strcmp(set_a_foreground, "\033[3%p1%dm")) {
-               set_a_foreground = "\033[3%?%p1%{8}%>%t9%e%p1%d%;m";
+               set_a_foreground = strdup("\033[3%?%p1%{8}%>%t9%e%p1%d%;m");
            } else {
                sp->_default_fg %= MaxColors;
            }
@@ -502,7 +470,7 @@ NCURSES_SP_NAME(_nc_setupscreen) (
        if (sp->_default_bg >= MaxColors) {
            if (set_a_background != ABSENT_STRING
                && !strcmp(set_a_background, "\033[4%p1%dm")) {
-               set_a_background = "\033[4%?%p1%{8}%>%t9%e%p1%d%;m";
+               set_a_background = strdup("\033[4%?%p1%{8}%>%t9%e%p1%d%;m");
            } else {
                sp->_default_bg %= MaxColors;
            }
@@ -548,16 +516,7 @@ NCURSES_SP_NAME(_nc_setupscreen) (
 
     if (magic_cookie_glitch > 0) {     /* tvi, wyse */
 
-       sp->_xmc_triggers = sp->_ok_attributes & (
-                                                    A_STANDOUT |
-                                                    A_UNDERLINE |
-                                                    A_REVERSE |
-                                                    A_BLINK |
-                                                    A_DIM |
-                                                    A_BOLD |
-                                                    A_INVIS |
-                                                    A_PROTECT
-           );
+       sp->_xmc_triggers = sp->_ok_attributes & XMC_CONFLICT;
 #if 0
        /*
         * We "should" treat colors as an attribute.  The wyse350 (and its
@@ -622,9 +581,15 @@ NCURSES_SP_NAME(_nc_setupscreen) (
 
     NCURSES_SP_NAME(_nc_init_acs) (NCURSES_SP_ARG);
 #if USE_WIDEC_SUPPORT
-    _nc_init_wacs();
+    sp->_screen_unicode = _nc_unicode_locale();
+    if (_nc_wacs == 0) {
+       _nc_init_wacs();
+    }
+    if (_nc_wacs == 0) {
+       ReturnScreenError();
+    }
 
-    sp->_screen_acs_fix = (_nc_unicode_locale()
+    sp->_screen_acs_fix = (sp->_screen_unicode
                           && _nc_locale_breaks_acs(sp->_term));
 #endif
     env = _nc_get_locale();
@@ -640,32 +605,35 @@ NCURSES_SP_NAME(_nc_setupscreen) (
     sp->newhash = 0;
 
     T(("creating newscr"));
-    sp->_newscr = NCURSES_SP_NAME(newwin) (NCURSES_SP_ARGx slines, scolumns,
-                                          0, 0);
-    if (sp->_newscr == 0) {
+    NewScreen(sp) = NCURSES_SP_NAME(newwin) (NCURSES_SP_ARGx slines, scolumns,
+                                            0, 0);
+    if (NewScreen(sp) == 0) {
        ReturnScreenError();
     }
     T(("creating curscr"));
-    sp->_curscr = NCURSES_SP_NAME(newwin) (NCURSES_SP_ARGx slines, scolumns,
-                                          0, 0);
-    if (sp->_curscr == 0) {
+    CurScreen(sp) = NCURSES_SP_NAME(newwin) (NCURSES_SP_ARGx slines, scolumns,
+                                            0, 0);
+    if (CurScreen(sp) == 0) {
        ReturnScreenError();
     }
 #if !USE_REENTRANT
-    newscr = sp->_newscr;
-    curscr = sp->_curscr;
+    newscr = NewScreen(sp);
+    curscr = CurScreen(sp);
 #endif
 #if USE_SIZECHANGE
     sp->_resize = NCURSES_SP_NAME(resizeterm);
+    sp->_ungetch = safe_ungetch;
 #endif
 
-    sp->_newscr->_clear = TRUE;
-    sp->_curscr->_clear = FALSE;
+    NewScreen(sp)->_clear = TRUE;
+    CurScreen(sp)->_clear = FALSE;
 
     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++) {
@@ -701,11 +669,12 @@ NCURSES_SP_NAME(_nc_setupscreen) (
                } else {
                    ReturnScreenError();
                }
-               if (rop->line < 0)
+               if (rop->line < 0) {
                    bottom_stolen += count;
-               else
-                   sp->_topstolen += count;
-               sp->_lines_avail -= count;
+               } else {
+                   sp->_topstolen = (NCURSES_SIZE_T) (sp->_topstolen + count);
+               }
+               sp->_lines_avail = (NCURSES_SIZE_T) (sp->_lines_avail - count);
            }
        }
        /* reset the stack */
@@ -714,14 +683,14 @@ NCURSES_SP_NAME(_nc_setupscreen) (
 
     T(("creating stdscr"));
     assert((sp->_lines_avail + sp->_topstolen + bottom_stolen) == slines);
-    if ((sp->_stdscr = NCURSES_SP_NAME(newwin) (NCURSES_SP_ARGx
-                                               sp->_lines_avail,
-                                               scolumns, 0, 0)) == 0) {
+    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 = sp->_stdscr;
+    stdscr = StdScreen(sp);
 #endif
     sp->_prescreen = FALSE;
     returnCode(OK);
@@ -732,7 +701,7 @@ NCURSES_EXPORT(int)
 _nc_setupscreen(int slines GCC_UNUSED,
                int scolumns GCC_UNUSED,
                FILE *output,
-               bool filtered,
+               int filtered,
                int slk_format)
 {
     SCREEN *sp = 0;
@@ -760,7 +729,7 @@ NCURSES_SP_NAME(_nc_ripoffline) (NCURSES_SP_DCLx
     int code = ERR;
 
     START_TRACE();
-    T((T_CALLED("ripoffline(%p,%d,%p)"), (void *) SP_PARM, line, (void *) init));
+    T((T_CALLED("ripoffline(%p,%d,%p)"), (void *) SP_PARM, line, TR_FUNC(init)));
 
 #if NCURSES_SP_FUNCS
     if (SP_PARM != 0 && SP_PARM->_prescreen)
@@ -796,6 +765,7 @@ 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);