+static void height_spin_changed_cb(GtkSpinButton *spin, gpointer data)
+{
+
+ gtk_widget_set_size_request(GTK_WIDGET(data), -1, gtk_spin_button_get_value_as_int(spin));
+}
+
+static gboolean height_spin_key_press_cb(GtkWidget *widget, GdkEventKey *event, gpointer data)
+{
+ if ((event->keyval == GDK_KEY_Return || event->keyval == GDK_KEY_Escape))
+ {
+ gtk_widget_destroy(GTK_WIDGET(data));
+ }
+
+ return TRUE;
+}
+
+static void bar_expander_height_cb(GtkWidget *widget, gpointer data)
+{
+ GtkWidget *expander = data;
+ GtkWidget *spin;
+ GtkWidget *window;
+ GtkWidget *data_box;
+ GList *list;
+ gint x, y;
+ gint w, h;
+#if GTK_CHECK_VERSION(3,0,0)
+ GdkDisplay *display;
+ GdkDeviceManager *device_manager;
+ GdkDevice *device;
+#endif
+
+#if GTK_CHECK_VERSION(3,0,0)
+ display = gdk_display_get_default();
+ device_manager = gdk_display_get_device_manager(display);
+ device = gdk_device_manager_get_client_pointer(device_manager);
+ gdk_device_get_position(device, NULL, &x, &y);
+#else
+ gdk_window_get_pointer(NULL, &x, &y, NULL);
+#endif
+
+ list = gtk_container_get_children(GTK_CONTAINER(expander));
+ data_box = list->data;
+
+ window = gtk_window_new(GTK_WINDOW_POPUP);
+
+ gtk_window_set_modal(GTK_WINDOW(window), TRUE);
+ gtk_window_set_keep_above(GTK_WINDOW(window), TRUE);
+ gtk_window_set_default_size(GTK_WINDOW(window), 50, 30); //** @FIXME set these values in a more sensible way */
+
+ gtk_window_move(GTK_WINDOW(window), x, y);
+ gtk_widget_show(window);
+
+ gtk_widget_get_size_request(GTK_WIDGET(data_box), &w, &h);
+
+ spin = gtk_spin_button_new_with_range(1, 1000, 1);
+ g_signal_connect(G_OBJECT(spin), "value-changed", G_CALLBACK(height_spin_changed_cb), data_box);
+ g_signal_connect(G_OBJECT(spin), "key-press-event", G_CALLBACK(height_spin_key_press_cb), window);
+
+ gtk_spin_button_set_value(GTK_SPIN_BUTTON(spin), h);
+ gtk_container_add(GTK_CONTAINER(window), spin);
+ gtk_widget_show(spin);
+ gtk_widget_grab_focus(GTK_WIDGET(spin));
+
+ g_list_free(list);
+}
+