Merge eog-menu-api branch

2003-01-20  Marco Pesenti Gritti  <marco@it.gnome.org>

	* Merge eog-menu-api branch

1 files changed, 194 insertions, 0 deletions

diff --git a/lib/egg/egg-radio-action.c b/lib/egg/egg-radio-action.c
new file mode 100644
index 000000000..888448c50
--- /dev/null
+++ b/lib/egg/egg-radio-action.c
@@ -0,0 +1,194 @@
+#include "egg-radio-action.h"
+
+static void egg_radio_action_init       (EggRadioAction *action);
+static void egg_radio_action_class_init (EggRadioActionClass *class);
+
+GType
+egg_radio_action_get_type (void)
+{
+  static GtkType type = 0;
+
+  if (!type)
+    {
+      static const GTypeInfo type_info =
+      {
+        sizeof (EggRadioActionClass),
+        (GBaseInitFunc) NULL,
+        (GBaseFinalizeFunc) NULL,
+        (GClassInitFunc) egg_radio_action_class_init,
+        (GClassFinalizeFunc) NULL,
+        NULL,
+        
+        sizeof (EggRadioAction),
+        0, /* n_preallocs */
+        (GInstanceInitFunc) egg_radio_action_init,
+      };
+
+      type = g_type_register_static (EGG_TYPE_TOGGLE_ACTION,
+                                     "EggRadioAction",
+                                     &type_info, 0);
+    }
+  return type;
+}
+
+static void egg_radio_action_finalize (GObject *object);
+static void egg_radio_action_activate (EggAction *action);
+
+static GObjectClass *parent_class = NULL;
+
+static void
+egg_radio_action_class_init (EggRadioActionClass *class)
+{
+  GObjectClass *object_class;
+  EggActionClass *action_class;
+
+  parent_class = g_type_class_peek_parent (class);
+  object_class = G_OBJECT_CLASS (class);
+  action_class = EGG_ACTION_CLASS (class);
+
+  object_class->finalize = egg_radio_action_finalize;
+
+  action_class->activate = egg_radio_action_activate;
+}
+
+static void
+egg_radio_action_init (EggRadioAction *action)
+{
+  action->group = g_slist_prepend (NULL, action);
+}
+
+static void
+egg_radio_action_finalize (GObject *object)
+{
+  EggRadioAction *action;
+  GSList *tmp_list;
+
+  g_return_if_fail (EGG_IS_RADIO_ACTION (object));
+
+  action = EGG_RADIO_ACTION (object);
+
+  action->group = g_slist_remove (action->group, action);
+
+  tmp_list = action->group;
+
+  while (tmp_list)
+    {
+      EggRadioAction *tmp_action = tmp_list->data;
+
+      tmp_list = tmp_list->next;
+      tmp_action->group = action->group;
+    }
+
+  if (parent_class->finalize)
+    (* parent_class->finalize) (object);
+}
+
+static void
+egg_radio_action_activate (EggAction *action)
+{
+  EggRadioAction *radio_action;
+  EggToggleAction *toggle_action;
+  EggToggleAction *tmp_action;
+  GSList *tmp_list;
+
+  g_return_if_fail (EGG_IS_RADIO_ACTION (action));
+
+  radio_action = EGG_RADIO_ACTION (action);
+  toggle_action = EGG_TOGGLE_ACTION (action);
+
+  if (toggle_action->active)
+    {
+      tmp_list = radio_action->group;
+
+      while (tmp_list)
+	{
+	  tmp_action = tmp_list->data;
+	  tmp_list = tmp_list->next;
+
+	  if (tmp_action->active && (tmp_action != toggle_action)) 
+	    {
+	      toggle_action->active = !toggle_action->active;
+	      break;
+	    }
+	}
+    }
+  else
+    {
+      toggle_action->active = !toggle_action->active;
+
+      tmp_list = radio_action->group;
+      while (tmp_list)
+	{
+	  tmp_action = tmp_list->data;
+	  tmp_list = tmp_list->next;
+
+	  if (tmp_action->active && (tmp_action != toggle_action))
+	    {
+	      egg_action_activate (EGG_ACTION (tmp_action));
+	      break;
+	    }
+	}
+    }
+
+  egg_toggle_action_toggled (toggle_action);
+}
+
+/**
+ * egg_radio_action_get_group:
+ * @action: the action object
+ *
+ * Returns: the list representing the radio group for this object
+ */
+GSList *
+egg_radio_action_get_group (EggRadioAction *action)
+{
+  g_return_val_if_fail (EGG_IS_RADIO_ACTION (action), NULL);
+
+  return action->group;
+}
+
+/**
+ * egg_radio_action_set_group:
+ * @action: the action object
+ * @group: a list representing a radio group
+ *
+ * Sets the radio group for the radio action object.
+ */
+void
+egg_radio_action_set_group (EggRadioAction *action, GSList *group)
+{
+  g_return_if_fail (EGG_IS_RADIO_ACTION (action));
+  g_return_if_fail (!g_slist_find (group, action));
+
+  if (action->group)
+    {
+      GSList *slist;
+
+      action->group = g_slist_remove (action->group, action);
+
+      for (slist = action->group; slist; slist = slist->next)
+	{
+	  EggRadioAction *tmp_action = slist->data;
+
+	  tmp_action->group = action->group;
+	}
+    }
+
+  action->group = g_slist_prepend (group, action);
+
+  if (group)
+    {
+      GSList *slist;
+
+      for (slist = action->group; slist; slist = slist->next)
+	{
+	  EggRadioAction *tmp_action = slist->data;
+
+	  tmp_action->group = action->group;
+	}
+    }
+  else
+    {
+      EGG_TOGGLE_ACTION (action)->active = TRUE;
+    }
+}