Add ld_category_get_path() and use it.

liblogdiag/ld-category-symbol-view.c

@@ -28,6 +28,7 @@
 struct _LdCategorySymbolViewPrivate
 {
 	LdCategory *category;
+	gchar *path;
 	guint height_negotiation : 1;
 };
 
@@ -106,6 +107,7 @@ ld_category_symbol_view_finalize (GObject *gobject)
 
 	if (self->priv->category)
 		g_object_unref (self->priv->category);
+	g_free (self->priv->path);
 
 	/* Chain up to the parent class. */
 	G_OBJECT_CLASS (ld_category_symbol_view_parent_class)->finalize (gobject);
@@ -234,8 +236,17 @@ ld_category_symbol_view_set_category (LdCategorySymbolView *self,
 	g_return_if_fail (LD_IS_CATEGORY (category));
 
 	if (self->priv->category)
+	{
 		g_object_unref (self->priv->category);
 
+		g_free (self->priv->path);
+		self->priv->path = NULL;
+	}
+
+	/* XXX: We should rebuild the path if the name changes but it shouldn't
+	 *      happen and we would have to track the parents, too. */
+	self->priv->path = ld_category_get_path (category);
+
 	self->priv->category = category;
 	g_object_ref (category);
 

liblogdiag/ld-category.c

@@ -428,6 +428,38 @@ ld_category_get_parent (LdCategory *self)
 	return self->priv->parent;
 }
 
+/**
+ * ld_category_get_path:
+ * @self: an #LdCategory object.
+ *
+ * Return value: the path to this category within the library.
+ */
+gchar *
+ld_category_get_path (LdCategory *self)
+{
+	LdCategory *iter;
+	gchar *path = NULL, *new_path;
+
+	g_return_val_if_fail (LD_IS_CATEGORY (self), NULL);
+
+	for (iter = self; iter; iter = ld_category_get_parent (iter))
+	{
+		const gchar *name;
+
+		/* Stop at the root category. */
+		name = ld_category_get_name (iter);
+		if (!strcmp (name, LD_LIBRARY_IDENTIFIER_SEPARATOR))
+			break;
+
+		new_path = g_build_path
+			(LD_LIBRARY_IDENTIFIER_SEPARATOR, name, path, NULL);
+		g_free (path);
+		path = new_path;
+	}
+
+	return path;
+}
+
 static void
 on_category_notify_name (LdCategory *category,
 	GParamSpec *pspec, gpointer user_data)

liblogdiag/ld-category.h

@@ -67,6 +67,7 @@ const GSList *ld_category_get_symbols (LdCategory *self);
 
 void ld_category_set_parent (LdCategory *self, LdCategory *parent);
 LdCategory *ld_category_get_parent (LdCategory *self);
+gchar *ld_category_get_path (LdCategory *self);
 
 gboolean ld_category_add_child (LdCategory *self, LdCategory *category);
 void ld_category_remove_child (LdCategory *self, LdCategory *category);