make zoom value update immediate

diff --git a/src/widgets/desktop-widget.cpp b/src/widgets/desktop-widget.cpp
index 19cc7bd05cccee4f0345ab79c7e68bd205e05ed3..4b744e3dffc1db2349036de76302c24333c951e3 100644 (file)
--- a/src/widgets/desktop-widget.cpp
+++ b/src/widgets/desktop-widget.cpp
@@ -1288,6 +1288,9 @@ sp_desktop_widget_update_zoom (SPDesktopWidget *dtw)
 {
     g_signal_handlers_block_by_func (G_OBJECT (dtw->zoom_status), (gpointer)G_CALLBACK (sp_dtw_zoom_value_changed), dtw);
     gtk_spin_button_set_value (GTK_SPIN_BUTTON (dtw->zoom_status), log(dtw->desktop->current_zoom()) / log(2));
+    gtk_widget_queue_draw(GTK_WIDGET(dtw->zoom_status));
+    if (GTK_WIDGET(dtw->zoom_status)->window)
+        gdk_window_process_updates(GTK_WIDGET(dtw->zoom_status)->window, TRUE);
     g_signal_handlers_unblock_by_func (G_OBJECT (dtw->zoom_status), (gpointer)G_CALLBACK (sp_dtw_zoom_value_changed), dtw);
 }