ncurses 5.7 - patch 20090803

[ncurses.git] / test / demo_menus.c

diff --git a/test/demo_menus.c b/test/demo_menus.c
index 80ad01cc6e742a1441c80150d6698d94fdea6b0a..4d553e2ea73c98947085f4a5fe02a0bab6057ecd 100644 (file)
--- a/test/demo_menus.c
+++ b/test/demo_menus.c
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright (c) 2005-2006,2007 Free Software Foundation, Inc.              *
+ * Copyright (c) 2005-2007,2008 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            *
@@ -26,7 +26,7 @@
  * authorization.                                                           *
  ****************************************************************************/
 /*
- * $Id: demo_menus.c,v 1.21 2007/07/21 17:45:09 tom Exp $
+ * $Id: demo_menus.c,v 1.28 2008/08/23 20:31:54 tom Exp $
  *
  * Demonstrate a variety of functions from the menu library.
  * Thomas Dickey - 2005/4/9
@@ -107,12 +107,14 @@ static MENU *mpBanner;
 static MENU *mpFile;
 static MENU *mpSelect;
 
+static bool loaded_file = FALSE;
+
 #if !HAVE_STRDUP
 #define strdup my_strdup
 static char *
 strdup(char *s)
 {
-    char *p = (char *) malloc(strlen(s) + 1);
+    char *p = typeMalloc(char, strlen(s) + 1);
     if (p)
        strcpy(p, s);
     return (p);
@@ -130,14 +132,14 @@ wGetchar(WINDOW *win)
     while ((c = wgetch(win)) == CTRL('T')) {
        if (_nc_tracing) {
            save_trace = _nc_tracing;
-           _tracef("TOGGLE-TRACING OFF");
+           Trace(("TOGGLE-TRACING OFF"));
            _nc_tracing = 0;
        } else {
            _nc_tracing = save_trace;
        }
        trace(_nc_tracing);
        if (_nc_tracing)
-           _tracef("TOGGLE-TRACING ON");
+           Trace(("TOGGLE-TRACING ON"));
     }
 #else
     c = wgetch(win);
@@ -256,23 +258,35 @@ menu_create(ITEM ** items, int count, int ncols, MenuNo number)
 static void
 menu_destroy(MENU * m)
 {
-    ITEM **ip;
     int count;
 
+    Trace(("menu_destroy %p", m));
     if (m != 0) {
-       delwin(menu_sub(m));
-       delwin(menu_win(m));
+       ITEM **items = menu_items(m);
+       const char *blob = 0;
 
-       ip = menu_items(m);
        count = item_count(m);
+       Trace(("menu_destroy %p count %d", m, count));
+       if ((count > 0) && (m == mpSelect)) {
+           blob = item_name(*items);
+       }
 
+       unpost_menu(m);
        free_menu(m);
-#if 0
-       if (count > 0) {
-           while (*ip) {
-               _tracef("freeing item %d:%d", ip - menu_items(m), count);
-               free_item(*ip++);
+
+       /* free the extra data allocated in build_select_menu() */
+       if ((count > 0) && (m == mpSelect)) {
+           if (blob && loaded_file) {
+               Trace(("freeing blob %p", blob));
+               free((char *) blob);
            }
+           free(items);
+       }
+#ifdef TRACE
+       if ((count > 0) && (m == mpTrace)) {
+           ITEM **ip = items;
+           while (*ip)
+               free(*ip++);
        }
 #endif
     }
@@ -291,7 +305,7 @@ menu_display(MENU * m)
 static void
 build_file_menu(MenuNo number)
 {
-    static const char *labels[] =
+    static CONST_MENUS char *labels[] =
     {
        "Exit",
        (char *) 0
@@ -299,7 +313,7 @@ build_file_menu(MenuNo number)
     static ITEM *items[SIZEOF(labels)];
 
     ITEM **ip = items;
-    const char **ap;
+    CONST_MENUS char **ap;
 
     for (ap = labels; *ap; ap++)
        *ip++ = new_item(*ap, "");
@@ -319,7 +333,7 @@ perform_file_menu(int cmd)
 static void
 build_select_menu(MenuNo number, char *filename)
 {
-    static const char *labels[] =
+    static CONST_MENUS char *labels[] =
     {
        "Lions",
        "Tigers",
@@ -339,7 +353,8 @@ build_select_menu(MenuNo number, char *filename)
     static ITEM **items;
 
     ITEM **ip;
-    const char **ap = 0;
+    CONST_MENUS char **ap = 0;
+    CONST_MENUS char **myList = 0;
     unsigned count = 0;
 
     if (filename != 0) {
@@ -347,12 +362,13 @@ build_select_menu(MenuNo number, char *filename)
        if (stat(filename, &sb) == 0
            && (sb.st_mode & S_IFMT) == S_IFREG
            && sb.st_size != 0) {
-           unsigned size = sb.st_size;
+           size_t size = (size_t) sb.st_size;
            unsigned j, k;
-           char *blob = malloc(size + 1);
-           const char **list = (const char **) calloc(sizeof(*list), size + 1);
+           char *blob = typeMalloc(char, size + 1);
+           CONST_MENUS char **list = typeCalloc(CONST_MENUS char *, size + 1);
 
-           items = (ITEM **) calloc(sizeof(ITEM *), size + 1);
+           items = typeCalloc(ITEM *, size + 1);
+           Trace(("build_select_menu blob=%p, items=%p", blob, items));
            if (blob != 0 && list != 0) {
                FILE *fp = fopen(filename, "r");
                if (fp != 0) {
@@ -374,16 +390,17 @@ build_select_menu(MenuNo number, char *filename)
                        }
                        list[k] = 0;
                        count = k;
-                       ap = list;
+                       ap = myList = list;
                    }
                    fclose(fp);
                }
+               loaded_file = TRUE;
            }
        }
     }
     if (ap == 0) {
        count = SIZEOF(labels) - 1;
-       items = (ITEM **) calloc(count + 1, sizeof(*items));
+       items = typeCalloc(ITEM *, count + 1);
        ap = labels;
     }
 
@@ -393,6 +410,8 @@ build_select_menu(MenuNo number, char *filename)
     *ip = 0;
 
     mpSelect = menu_create(items, (int) count, 1, number);
+    if (myList != 0)
+       free(myList);
 }
 
 static int
@@ -456,7 +475,7 @@ tracetrace(unsigned tlevel)
        size_t need = 12;
        for (n = 0; t_tbl[n].name != 0; n++)
            need += strlen(t_tbl[n].name) + 2;
-       buf = (char *) malloc(need);
+       buf = typeMalloc(char, need);
     }
     sprintf(buf, "0x%02x = {", tlevel);
     if (tlevel == 0) {
@@ -523,7 +542,7 @@ perform_trace_menu(int cmd)
                    newtrace |= t_tbl[item_index(*ip)].mask;
            }
            trace(newtrace);
-           _tracef("trace level interactively set to %s", tracetrace(_nc_tracing));
+           Trace(("trace level interactively set to %s", tracetrace(_nc_tracing)));
 
            (void) mvprintw(LINES - 2, 0,
                            "Trace level is %s\n", tracetrace(_nc_tracing));
@@ -569,7 +588,7 @@ current_menu(void)
 static void
 build_menus(char *filename)
 {
-    static const char *labels[] =
+    static CONST_MENUS char *labels[] =
     {
        "File",
        "Select",
@@ -581,7 +600,7 @@ build_menus(char *filename)
     static ITEM *items[SIZEOF(labels)];
 
     ITEM **ip = items;
-    const char **ap;
+    CONST_MENUS char **ap;
 
     for (ap = labels; *ap; ap++)
        *ip++ = new_item(*ap, "");