[anjuta] symbol-db: Properly disable the Global tab

[James Liggett <jrliggett src gnome org>]

commit 93bd48c191961d0e4aad090bbd1985b0a9424b0f
Author: James Liggett <jrliggett cox net>
Date:   Tue Jan 19 17:07:54 2010 -0800

    symbol-db: Properly disable the Global tab
    
    Disable the Global tab when only C projects are used instead of just hiding
    it. Simply hiding it can cause situations where the buttons and the underlying
    notebook are out of sync (i.e. the Global button is active but the Local or
    Search pages are displayed.)
    
    Furthermore, explicitly disabling the Global button gives the user
    indication that the Search tab should be used instead.

 plugins/symbol-db/plugin.c |   69 +++++++++++++++++--------------------------
 1 files changed, 27 insertions(+), 42 deletions(-)
---
diff --git a/plugins/symbol-db/plugin.c b/plugins/symbol-db/plugin.c
index 0973699..3db983b 100644
--- a/plugins/symbol-db/plugin.c
+++ b/plugins/symbol-db/plugin.c
@@ -1545,6 +1545,7 @@ static void
 do_check_languages_count (SymbolDBPlugin *sdb_plugin)
 {
 	gint count;
+	gint page;
 	
 	count = symbol_db_engine_get_languages_count (sdb_plugin->sdbe_project);
 	
@@ -1554,13 +1555,22 @@ do_check_languages_count (SymbolDBPlugin *sdb_plugin)
 		if (symbol_db_engine_is_language_used (sdb_plugin->sdbe_project, 
 											   "C") == TRUE)
 		{
-			/* hide the global tab */
-			gtk_widget_hide (sdb_plugin->scrolled_global);
+			/* disable the global tab */
+			gtk_widget_set_sensitive (sdb_plugin->global_button, FALSE);
+
+			/* switch to the local tab if we are looking at the global tab */
+			page = gtk_notebook_get_current_page (GTK_NOTEBOOK (sdb_plugin->dbv_notebook)); 
+
+			if (page == 1)
+			{
+				gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (sdb_plugin->local_button),
+				                              TRUE);
+			}
 		}
 	}
 	else 
 	{
-		gtk_widget_show (sdb_plugin->scrolled_global);
+		gtk_widget_set_sensitive (sdb_plugin->global_button, TRUE);
 	}
 }
 
@@ -2164,38 +2174,6 @@ on_notebook_button_toggled (GtkToggleButton *button,
 	gtk_notebook_set_current_page (GTK_NOTEBOOK(sdb_plugin->dbv_notebook), page);
 }
 
-static void
-on_notebook_switch_page (GtkNotebook* notebook,
-                         GtkNotebookPage* page,
-                         guint page_num,
-                         SymbolDBPlugin *sdb_plugin)
-{
-	g_signal_handlers_block_by_func (sdb_plugin->local_button,
-	                                on_notebook_button_toggled,
-	                                sdb_plugin);
-	g_signal_handlers_block_by_func (sdb_plugin->global_button,
-	                                on_notebook_button_toggled,
-	                                sdb_plugin);
-	g_signal_handlers_block_by_func (sdb_plugin->search_button,
-	                                on_notebook_button_toggled,
-	                                sdb_plugin);
-	gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON(sdb_plugin->local_button),
-	                              page_num == 0);
-	gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON(sdb_plugin->global_button),
-	                              page_num == 1);
-	gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON(sdb_plugin->search_button),
-	                              page_num == 2);
-	g_signal_handlers_unblock_by_func (sdb_plugin->local_button,
-	                                on_notebook_button_toggled,
-	                                sdb_plugin);
-	g_signal_handlers_unblock_by_func (sdb_plugin->global_button,
-	                                on_notebook_button_toggled,
-	                                sdb_plugin);
-	g_signal_handlers_unblock_by_func (sdb_plugin->search_button,
-	                                on_notebook_button_toggled,
-	                                sdb_plugin);
-}
-
 static gboolean
 symbol_db_activate (AnjutaPlugin *plugin)
 {
@@ -2340,9 +2318,20 @@ symbol_db_activate (AnjutaPlugin *plugin)
 	gtk_notebook_set_show_tabs (GTK_NOTEBOOK (sdb_plugin->dbv_notebook), FALSE);
 	sdb_plugin->dbv_hbox = gtk_hbox_new (FALSE, 1);
 
-	sdb_plugin->local_button = gtk_toggle_button_new_with_label (_("Local"));
-	sdb_plugin->global_button = gtk_toggle_button_new_with_label (_("Global"));
-	sdb_plugin->search_button = gtk_toggle_button_new_with_label (_("Search"));
+	sdb_plugin->local_button = gtk_radio_button_new_with_label_from_widget (NULL, 
+	                                                                        _("Local"));
+	sdb_plugin->global_button = gtk_radio_button_new_with_label_from_widget (GTK_RADIO_BUTTON (sdb_plugin->local_button),
+	                                                                         _("Global"));
+	sdb_plugin->search_button = gtk_radio_button_new_with_label_from_widget (GTK_RADIO_BUTTON (sdb_plugin->global_button),
+	                                                                         _("Search"));
+
+	/* Make the radio buttons look and act like toggle buttons */
+	gtk_toggle_button_set_mode (GTK_TOGGLE_BUTTON (sdb_plugin->local_button), 
+	                            FALSE);
+	gtk_toggle_button_set_mode (GTK_TOGGLE_BUTTON (sdb_plugin->global_button),
+	                            FALSE);
+	gtk_toggle_button_set_mode (GTK_TOGGLE_BUTTON (sdb_plugin->search_button),
+	                            FALSE);
 
 	g_object_set_data (G_OBJECT(sdb_plugin->local_button), "__page", GINT_TO_POINTER(0));
 	g_object_set_data (G_OBJECT(sdb_plugin->global_button), "__page", GINT_TO_POINTER(1));
@@ -2354,10 +2343,6 @@ symbol_db_activate (AnjutaPlugin *plugin)
 	                  sdb_plugin);
 	g_signal_connect (sdb_plugin->search_button, "toggled", G_CALLBACK(on_notebook_button_toggled),
 	                  sdb_plugin);
-	g_signal_connect (sdb_plugin->dbv_notebook,
-	                  "switch-page",
-	                  G_CALLBACK(on_notebook_switch_page),
-	                  sdb_plugin);
 
 	label = gtk_label_new (_("Symbols"));
 	gtk_label_set_ellipsize (GTK_LABEL (label),