improve scroll and drag behaviour of volume-controller knob

[ardour.git] / libs / gtkmm2ext / actions.cc

diff --git a/libs/gtkmm2ext/actions.cc b/libs/gtkmm2ext/actions.cc
index 1380d49ae8631ee94eb682e9c351e59d7583f9b1..84a738f278559a84f1a6149327d6e9a8bbaa3abf 100644 (file)
--- a/libs/gtkmm2ext/actions.cc
+++ b/libs/gtkmm2ext/actions.cc
@@ -243,6 +243,40 @@ ActionManager::get_widget (const char * name)
        return ui_manager->get_widget (name);
 }
 
+RefPtr<Action>
+ActionManager::get_action (const char* path)
+{
+       if (!path) {
+               return RefPtr<Action>();
+       }
+
+       /* Skip <Actions>/ in path */
+
+       int len = strlen (path);
+
+       if (len < 3) {
+               /* shortest possible path: "a/b" */
+               return RefPtr<Action>();
+       }
+
+       if (len > 10 && !strncmp (path, "<Actions>/", 10 )) {
+               path = path+10;
+       } else if (path[0] == '/') {
+               path++;
+       }
+
+       char copy[len+1];
+       strcpy (copy, path);
+       char* slash = strchr (copy, '/');
+       if (!slash) {
+               return RefPtr<Action> ();
+       }
+       *slash = '\0';
+
+       return get_action (copy, ++slash);
+       
+}
+
 RefPtr<Action>
 ActionManager::get_action (const char* group_name, const char* action_name)
 {
@@ -276,6 +310,32 @@ ActionManager::get_action (const char* group_name, const char* action_name)
        return act;
 }
 
+RefPtr<Action>
+ActionManager::get_action_from_name (const char* name)
+{
+       /* the C++ API for functions used here appears to be broken in
+          gtkmm2.6, so we fall back to the C level.
+       */
+
+       GList* list = gtk_ui_manager_get_action_groups (ui_manager->gobj());
+       GList* node;
+       GList* acts;
+
+       for (node = list; node; node = g_list_next (node)) {
+
+               GtkActionGroup* group = (GtkActionGroup*) node->data;
+
+               for (acts = gtk_action_group_list_actions (group); acts; acts = g_list_next (acts)) {
+                       GtkAction* action = (GtkAction*) acts->data;
+                       if (!strcmp (gtk_action_get_name (action), name)) {
+                               return Glib::wrap (action, true);
+                       }
+               }
+       }
+
+       return RefPtr<Action>();
+}
+
 void
 ActionManager::set_sensitive (vector<RefPtr<Action> >& actions, bool state)
 {
@@ -284,8 +344,20 @@ ActionManager::set_sensitive (vector<RefPtr<Action> >& actions, bool state)
        }
 }
 
+void
+ActionManager::check_toggleaction (string n)
+{
+       set_toggleaction_state (n, true);
+}
+
 void
 ActionManager::uncheck_toggleaction (string n)
+{
+       set_toggleaction_state (n, false);
+}
+
+void
+ActionManager::set_toggleaction_state (string n, bool s)
 {
        char const * name = n.c_str ();
        
@@ -309,7 +381,7 @@ ActionManager::uncheck_toggleaction (string n)
         RefPtr<Action> act = get_action (group_name, action_name);
        if (act) {
                RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
-                       tact->set_active (false);
+                       tact->set_active (s);
        } else {
                error << string_compose (_("Unknown action name: %1"),  name) << endmsg;
        }