threads example from Erik Mouw. New question on GtkLabel background

Sat Nov 13 22:30:29 GMT 1999 Tony Gale  <gale@gtk.org>

        * docs/gtkfaq.sgml: threads example from Erik Mouw.
        New question on GtkLabel background colors.

        * docs/gtk_tut.sgml:
          - Correct the example code callback
            function definitions.
          - Update the gtkdial example code, from Frans van Schaik.
          - Update setselection.c to current API.

        * examples/Makefile examples/*/*.c: Update to code
        listed in tutorial.

2 files changed, 81 insertions, 73 deletions

diff --git a/examples/menu/itemfactory.c b/examples/menu/itemfactory.c
index b47e3dfe85..d1239baff2 100644
--- a/examples/menu/itemfactory.c
+++ b/examples/menu/itemfactory.c
@@ -4,8 +4,10 @@
 #include <strings.h>
 
 /* Obligatory basic callback */
-static void print_hello(GtkWidget *w, gpointer data) {
-  g_message("Hello, World!\n");
+static void print_hello( GtkWidget *w,
+                         gpointer   data )
+{
+  g_message ("Hello, World!\n");
 }
 
 /* This is the GtkItemFactoryEntry structure used to generate new menus.
@@ -27,31 +29,33 @@ static void print_hello(GtkWidget *w, gpointer data) {
            "<RadioItem>"      -> create a radio item
            <path>             -> path of a radio item to link against
            "<Separator>"      -> create a separator
-           "<Branch>"         -> create an item to hold sub items
+           "<Branch>"         -> create an item to hold sub items (optional)
            "<LastBranch>"     -> create a right justified branch 
 */
 
 static GtkItemFactoryEntry menu_items[] = {
-  {"/_File",         NULL,         NULL, 0, "<Branch>"},
-  {"/File/_New",     "<control>N", print_hello, 0, NULL},
-  {"/File/_Open",    "<control>O", print_hello, 0, NULL},
-  {"/File/_Save",    "<control>S", print_hello, 0, NULL},
-  {"/File/Save _As", NULL,         NULL, 0, NULL},
-  {"/File/sep1",     NULL,         NULL, 0, "<Separator>"},
-  {"/File/Quit",     "<control>Q", gtk_main_quit, 0, NULL},
-  {"/_Options",      NULL,         NULL, 0, "<Branch>"},
-  {"/Options/Test",  NULL,         NULL, 0, NULL},
-  {"/_Help",         NULL,         NULL, 0, "<LastBranch>"},
-  {"/_Help/About",   NULL,         NULL, 0, NULL},
+  { "/_File",         NULL,         NULL, 0, "<Branch>" },
+  { "/File/_New",     "<control>N", print_hello, 0, NULL },
+  { "/File/_Open",    "<control>O", print_hello, 0, NULL },
+  { "/File/_Save",    "<control>S", print_hello, 0, NULL },
+  { "/File/Save _As", NULL,         NULL, 0, NULL },
+  { "/File/sep1",     NULL,         NULL, 0, "<Separator>" },
+  { "/File/Quit",     "<control>Q", gtk_main_quit, 0, NULL },
+  { "/_Options",      NULL,         NULL, 0, "<Branch>" },
+  { "/Options/Test",  NULL,         NULL, 0, NULL },
+  { "/_Help",         NULL,         NULL, 0, "<LastBranch>" },
+  { "/_Help/About",   NULL,         NULL, 0, NULL },
 };
 
 
-void get_main_menu(GtkWidget *window, GtkWidget ** menubar) {
-  int nmenu_items = sizeof(menu_items) / sizeof(menu_items[0]);
+void get_main_menu( GtkWidget  *window,
+                    GtkWidget **menubar )
+{
   GtkItemFactory *item_factory;
   GtkAccelGroup *accel_group;
+  gint nmenu_items = sizeof (menu_items) / sizeof (menu_items[0]);
 
-  accel_group = gtk_accel_group_new();
+  accel_group = gtk_accel_group_new ();
 
   /* This function initializes the item factory.
      Param 1: The type of menu - can be GTK_TYPE_MENU_BAR, GTK_TYPE_MENU,
@@ -61,47 +65,49 @@ void get_main_menu(GtkWidget *window, GtkWidget ** menubar) {
               the accelerator table while generating menus.
   */
 
-  item_factory = gtk_item_factory_new(GTK_TYPE_MENU_BAR, "<main>", 
+  item_factory = gtk_item_factory_new (GTK_TYPE_MENU_BAR, "<main>", 
 				       accel_group);
 
   /* This function generates the menu items. Pass the item factory,
      the number of items in the array, the array itself, and any
      callback data for the the menu items. */
-  gtk_item_factory_create_items(item_factory, nmenu_items, menu_items, NULL);
+  gtk_item_factory_create_items (item_factory, nmenu_items, menu_items, NULL);
 
   /* Attach the new accelerator group to the window. */
-  gtk_accel_group_attach (accel_group, GTK_OBJECT (window));
+  gtk_window_add_accel_group (GTK_WINDOW (window), accel_group);
 
   if (menubar)
     /* Finally, return the actual menu bar created by the item factory. */ 
-    *menubar = gtk_item_factory_get_widget(item_factory, "<main>");
+    *menubar = gtk_item_factory_get_widget (item_factory, "<main>");
 }
 
-int main(int argc, char *argv[]) {
+int main( int argc,
+          char *argv[] )
+{
   GtkWidget *window;
   GtkWidget *main_vbox;
   GtkWidget *menubar;
   
-  gtk_init(&argc, &argv);
+  gtk_init (&argc, &argv);
   
-  window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
-  gtk_signal_connect(GTK_OBJECT(window), "destroy", 
-		     GTK_SIGNAL_FUNC(gtk_main_quit), 
-		     "WM destroy");
-  gtk_window_set_title(GTK_WINDOW(window), "Item Factory");
-  gtk_widget_set_usize(GTK_WIDGET(window), 300, 200);
+  window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+  gtk_signal_connect (GTK_OBJECT (window), "destroy", 
+		      GTK_SIGNAL_FUNC (gtk_main_quit), 
+		      "WM destroy");
+  gtk_window_set_title (GTK_WINDOW(window), "Item Factory");
+  gtk_widget_set_usize (GTK_WIDGET(window), 300, 200);
   
-  main_vbox = gtk_vbox_new(FALSE, 1);
-  gtk_container_border_width(GTK_CONTAINER(main_vbox), 1);
-  gtk_container_add(GTK_CONTAINER(window), main_vbox);
-  gtk_widget_show(main_vbox);
+  main_vbox = gtk_vbox_new (FALSE, 1);
+  gtk_container_border_width (GTK_CONTAINER (main_vbox), 1);
+  gtk_container_add (GTK_CONTAINER (window), main_vbox);
+  gtk_widget_show (main_vbox);
   
-  get_main_menu(window, &menubar);
-  gtk_box_pack_start(GTK_BOX(main_vbox), menubar, FALSE, TRUE, 0);
-  gtk_widget_show(menubar);
+  get_main_menu (window, &menubar);
+  gtk_box_pack_start (GTK_BOX (main_vbox), menubar, FALSE, TRUE, 0);
+  gtk_widget_show (menubar);
   
-  gtk_widget_show(window);
-  gtk_main();
+  gtk_widget_show (window);
+  gtk_main ();
   
   return(0);
 }
diff --git a/examples/menu/menu.c b/examples/menu/menu.c
index a53019b02e..e1420e80aa 100644
--- a/examples/menu/menu.c
+++ b/examples/menu/menu.c
@@ -5,7 +5,8 @@
 static gint button_press (GtkWidget *, GdkEvent *);
 static void menuitem_response (gchar *);
 
-int main (int argc, char *argv[])
+int main( int   argc,
+          char *argv[] )
 {
 
     GtkWidget *window;
@@ -21,17 +22,17 @@ int main (int argc, char *argv[])
     gtk_init (&argc, &argv);
 
     /* create a new window */
-    window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
-    gtk_widget_set_usize( GTK_WIDGET (window), 200, 100);
-    gtk_window_set_title(GTK_WINDOW (window), "GTK Menu Test");
-    gtk_signal_connect(GTK_OBJECT (window), "delete_event",
-                       (GtkSignalFunc) gtk_main_quit, NULL);
+    window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+    gtk_widget_set_usize (GTK_WIDGET (window), 200, 100);
+    gtk_window_set_title (GTK_WINDOW (window), "GTK Menu Test");
+    gtk_signal_connect (GTK_OBJECT (window), "delete_event",
+                        (GtkSignalFunc) gtk_main_quit, NULL);
 
     /* Init the menu-widget, and remember -- never
      * gtk_show_widget() the menu widget!! 
      * This is the menu that holds the menu items, the one that
      * will pop up when you click on the "Root Menu" in the app */
-    menu = gtk_menu_new();
+    menu = gtk_menu_new ();
 
     /* Next we make a little loop that makes three menu-entries for "test-menu".
      * Notice the call to gtk_menu_append.  Here we are adding a list of
@@ -39,64 +40,64 @@ int main (int argc, char *argv[])
      * signal on each of the menu items and setup a callback for it,
      * but it's omitted here to save space. */
 
-    for(i = 0; i < 3; i++)
+    for (i = 0; i < 3; i++)
         {
             /* Copy the names to the buf. */
-            sprintf(buf, "Test-undermenu - %d", i);
+            sprintf (buf, "Test-undermenu - %d", i);
 
             /* Create a new menu-item with a name... */
-            menu_items = gtk_menu_item_new_with_label(buf);
+            menu_items = gtk_menu_item_new_with_label (buf);
 
             /* ...and add it to the menu. */
-            gtk_menu_append(GTK_MENU (menu), menu_items);
+            gtk_menu_append (GTK_MENU (menu), menu_items);
 
 	    /* Do something interesting when the menuitem is selected */
-	    gtk_signal_connect_object(GTK_OBJECT(menu_items), "activate",
-		GTK_SIGNAL_FUNC(menuitem_response), (gpointer) g_strdup(buf));
+	    gtk_signal_connect_object (GTK_OBJECT (menu_items), "activate",
+		GTK_SIGNAL_FUNC (menuitem_response), (gpointer) g_strdup (buf));
 
             /* Show the widget */
-            gtk_widget_show(menu_items);
+            gtk_widget_show (menu_items);
         }
 
     /* This is the root menu, and will be the label
      * displayed on the menu bar.  There won't be a signal handler attached,
      * as it only pops up the rest of the menu when pressed. */
-    root_menu = gtk_menu_item_new_with_label("Root Menu");
+    root_menu = gtk_menu_item_new_with_label ("Root Menu");
 
-    gtk_widget_show(root_menu);
+    gtk_widget_show (root_menu);
 
     /* Now we specify that we want our newly created "menu" to be the menu
      * for the "root menu" */
-    gtk_menu_item_set_submenu(GTK_MENU_ITEM (root_menu), menu);
+    gtk_menu_item_set_submenu (GTK_MENU_ITEM (root_menu), menu);
 
     /* A vbox to put a menu and a button in: */
-    vbox = gtk_vbox_new(FALSE, 0);
-    gtk_container_add(GTK_CONTAINER(window), vbox);
-    gtk_widget_show(vbox);
+    vbox = gtk_vbox_new (FALSE, 0);
+    gtk_container_add (GTK_CONTAINER (window), vbox);
+    gtk_widget_show (vbox);
 
     /* Create a menu-bar to hold the menus and add it to our main window */
-    menu_bar = gtk_menu_bar_new();
-    gtk_box_pack_start(GTK_BOX(vbox), menu_bar, FALSE, FALSE, 2);
-    gtk_widget_show(menu_bar);
+    menu_bar = gtk_menu_bar_new ();
+    gtk_box_pack_start (GTK_BOX (vbox), menu_bar, FALSE, FALSE, 2);
+    gtk_widget_show (menu_bar);
 
     /* Create a button to which to attach menu as a popup */
-    button = gtk_button_new_with_label("press me");
-    gtk_signal_connect_object(GTK_OBJECT(button), "event",
-	GTK_SIGNAL_FUNC (button_press), GTK_OBJECT(menu));
-    gtk_box_pack_end(GTK_BOX(vbox), button, TRUE, TRUE, 2);
-    gtk_widget_show(button);
+    button = gtk_button_new_with_label ("press me");
+    gtk_signal_connect_object (GTK_OBJECT (button), "event",
+	GTK_SIGNAL_FUNC (button_press), GTK_OBJECT (menu));
+    gtk_box_pack_end (GTK_BOX (vbox), button, TRUE, TRUE, 2);
+    gtk_widget_show (button);
 
     /* And finally we append the menu-item to the menu-bar -- this is the
      * "root" menu-item I have been raving about =) */
-    gtk_menu_bar_append(GTK_MENU_BAR (menu_bar), root_menu);
+    gtk_menu_bar_append (GTK_MENU_BAR (menu_bar), root_menu);
 
     /* always display the window as the last step so it all splashes on
      * the screen at once. */
-    gtk_widget_show(window);
+    gtk_widget_show (window);
 
     gtk_main ();
 
-    return 0;
+    return(0);
 }
 
 /* Respond to a button-press by posting a menu passed in as widget.
@@ -105,12 +106,13 @@ int main (int argc, char *argv[])
  * the button that was pressed.
  */
 
-static gint button_press (GtkWidget *widget, GdkEvent *event)
+static gint button_press( GtkWidget *widget,
+                          GdkEvent *event )
 {
 
     if (event->type == GDK_BUTTON_PRESS) {
         GdkEventButton *bevent = (GdkEventButton *) event; 
-        gtk_menu_popup (GTK_MENU(widget), NULL, NULL, NULL, NULL,
+        gtk_menu_popup (GTK_MENU (widget), NULL, NULL, NULL, NULL,
                         bevent->button, bevent->time);
         /* Tell calling code that we have handled this event; the buck
          * stops here. */
@@ -124,8 +126,8 @@ static gint button_press (GtkWidget *widget, GdkEvent *event)
 
 /* Print a string when a menu item is selected */
 
-static void menuitem_response (gchar *string)
+static void menuitem_response( gchar *string )
 {
-    printf("%s\n", string);
+    printf ("%s\n", string);
 }
 /* example-end */