[gtk+/layered-windows: 6/10] testwindows: Add a button to cause a repaint

[Alexander Larsson <alexl src gnome org>]

commit d2b0f5688e52a212502482a2ffcdc1f3b80e7f93
Author: Alexander Larsson <alexl redhat com>
Date:   Thu Dec 1 16:21:45 2011 +0100

    testwindows: Add a button to cause a repaint
    
    This makes it easy to find various kinds of repaint bugs

 tests/testwindows.c |   18 ++++++++++++++++++
 1 files changed, 18 insertions(+), 0 deletions(-)
---
diff --git a/tests/testwindows.c b/tests/testwindows.c
index 8b98d6c..5c572bb 100644
--- a/tests/testwindows.c
+++ b/tests/testwindows.c
@@ -276,6 +276,13 @@ save_children (GString *s,
 
 
 static void
+refresh_clicked (GtkWidget *button, 
+		 gpointer data)
+{
+  gtk_widget_queue_draw (darea);
+}
+
+static void
 save_clicked (GtkWidget *button, 
 	      gpointer data)
 {
@@ -1041,6 +1048,17 @@ main (int argc, char **argv)
 		    G_CALLBACK (save_clicked), 
 		    NULL);
 
+  button = gtk_button_new_with_label ("Refresh");
+  gtk_box_pack_start (GTK_BOX (vbox),
+		      button,
+		      FALSE, FALSE,
+		      2);
+  gtk_widget_show (button);
+  g_signal_connect (button, "clicked", 
+		    G_CALLBACK (refresh_clicked), 
+		    NULL);
+
+  
   gtk_widget_show (window);
 
   if (argc == 2)