ncurses 5.7 - patch 20090418

[ncurses.git] / ncurses / base / lib_newterm.c

diff --git a/ncurses/base/lib_newterm.c b/ncurses/base/lib_newterm.c
index d7235d29c714570207ac24c25c82925cf1952ed2..8dd70e0f672c336b5dc71bde5641898920df3493 100644 (file)
--- a/ncurses/base/lib_newterm.c
+++ b/ncurses/base/lib_newterm.c
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright (c) 1998-2006,2007 Free Software Foundation, Inc.              *
+ * Copyright (c) 1998-2008,2009 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            *
@@ -30,6 +30,7 @@
  *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
  *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
  *     and: Thomas E. Dickey                        1996-on                 *
+ *     and: Juergen Pfeifer                         2009                    *
  ****************************************************************************/
 
 /*
@@ -48,7 +49,7 @@
 #include <term.h>              /* clear_screen, cup & friends, cur_term */
 #include <tic.h>
 
-MODULE_ID("$Id: lib_newterm.c,v 1.65 2007/03/10 23:39:27 tom Exp $")
+MODULE_ID("$Id: lib_newterm.c,v 1.75 2009/04/18 19:22:08 tom Exp $")
 
 #ifndef ONLCR                  /* Allows compilation under the QNX 4.2 OS */
 #define ONLCR 0
@@ -94,70 +95,103 @@ _nc_initscr(void)
  * aside from possibly delaying a filter() call until some terminals have been
  * initialized.
  */
-static bool filter_mode = FALSE;
-
 NCURSES_EXPORT(void)
-filter(void)
+NCURSES_SP_NAME(filter) (NCURSES_SP_DCL0)
 {
     START_TRACE();
     T((T_CALLED("filter")));
-    filter_mode = TRUE;
+    _nc_prescreen.filter_mode = TRUE;
     returnVoid;
 }
 
+#if NCURSES_SP_FUNCS
+NCURSES_EXPORT(void)
+filter(void)
+{
+    NCURSES_SP_NAME(filter) (CURRENT_SCREEN);
+}
+#endif
+
 #if NCURSES_EXT_FUNCS
 /*
  * An extension, allowing the application to open a new screen without
  * requiring it to also be filtered.
  */
 NCURSES_EXPORT(void)
-nofilter(void)
+NCURSES_SP_NAME(nofilter) (NCURSES_SP_DCL0)
 {
     START_TRACE();
     T((T_CALLED("nofilter")));
-    filter_mode = FALSE;
+    _nc_prescreen.filter_mode = FALSE;
     returnVoid;
 }
+
+#if NCURSES_SP_FUNCS
+NCURSES_EXPORT(void)
+nofilter(void)
+{
+    NCURSES_SP_NAME(nofilter) (CURRENT_SCREEN);
+}
 #endif
+#endif /* NCURSES_EXT_FUNCS */
 
 NCURSES_EXPORT(SCREEN *)
-newterm(NCURSES_CONST char *name, FILE *ofp, FILE *ifp)
+NCURSES_SP_NAME(newterm) (NCURSES_SP_DCLx
+                         NCURSES_CONST char *name,
+                         FILE *ofp,
+                         FILE *ifp)
 {
     int value;
     int errret;
-    int slk_format = _nc_slk_format;
     SCREEN *current;
     SCREEN *result = 0;
+    TERMINAL *its_term;
 
     START_TRACE();
     T((T_CALLED("newterm(\"%s\",%p,%p)"), name, ofp, ifp));
 
-    _nc_handle_sigwinch(0);
+    _nc_init_pthreads();
+    _nc_lock_global(curses);
+
+    current = SP_PARM;
+    its_term = (SP_PARM ? SP_PARM->_term : 0);
 
     /* this loads the capability entry, then sets LINES and COLS */
-    if (setupterm(name, fileno(ofp), &errret) == ERR) {
-       result = 0;
-    } else {
+    if (setupterm(name, fileno(ofp), &errret) != ERR) {
+       int slk_format = _nc_globals.slk_format;
+
        /*
         * This actually allocates the screen structure, and saves the original
         * terminal settings.
         */
-       current = SP;
        _nc_set_screen(0);
 
        /* allow user to set maximum escape delay from the environment */
        if ((value = _nc_getenv_num("ESCDELAY")) >= 0) {
-#if USE_REENTRANT
-           SP->_ESCDELAY = value;
-#else
-           ESCDELAY = value;
-#endif
+           set_escdelay(value);
        }
 
-       if (_nc_setupscreen(LINES, COLS, ofp, filter_mode, slk_format) == ERR) {
+       if (_nc_setupscreen(LINES,
+                           COLS,
+                           ofp,
+                           _nc_prescreen.filter_mode,
+                           slk_format) == ERR) {
            _nc_set_screen(current);
            result = 0;
        } else {
+           assert(SP_PARM != 0);
+           /*
+            * In setupterm() we did a set_curterm(), but it was before we set
+            * SP.  So the "current" screen's terminal pointer was overwritten
+            * with a different terminal.  Later, in _nc_setupscreen(), we set
+            * SP and the terminal pointer in the new screen.
+            *
+            * Restore the terminal-pointer for the pre-existing screen, if
+            * any.
+            */
+           if (current)
+               current->_term = its_term;
+
            /* if the terminal type has real soft labels, set those up */
            if (slk_format && num_labels > 0 && SLK_STDFMT(slk_format))
                _nc_slk_initialize(stdscr, COLS);
@@ -216,6 +250,14 @@ newterm(NCURSES_CONST char *name, FILE *ofp, FILE *ifp)
            result = SP;
        }
     }
-    _nc_handle_sigwinch(1);
+    _nc_unlock_global(curses);
     returnSP(result);
 }
+
+#if NCURSES_SP_FUNCS
+NCURSES_EXPORT(SCREEN *)
+newterm(NCURSES_CONST char *name, FILE *ofp, FILE *ifp)
+{
+    return NCURSES_SP_NAME(newterm) (CURRENT_SCREEN, name, ofp, ifp);
+}
+#endif