[gtk+] Add a big combobox test case

[Matthias Clasen <matthiasc src gnome org>]

commit bf79c8f0df1457fe1f5320c76d3170e2e7217235
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed Apr 2 09:51:01 2014 -0400

    Add a big combobox test case
    
    I've seen many bugs about long combo box popups getting misplaced
    or wrongly sized. Time to add a testcase.

 tests/testcombo.c |   14 ++++++++++++++
 1 files changed, 14 insertions(+), 0 deletions(-)
---
diff --git a/tests/testcombo.c b/tests/testcombo.c
index f16639c..c0a5d47 100644
--- a/tests/testcombo.c
+++ b/tests/testcombo.c
@@ -1057,6 +1057,8 @@ main (int argc, char **argv)
        GtkTreeIter iter;
        GdkRGBA color;
        GtkCellArea *area;
+        gchar *text;
+        gint i;
 
         gtk_init (&argc, &argv);
 
@@ -1431,6 +1433,18 @@ main (int argc, char **argv)
         gtk_combo_box_set_active (GTK_COMBO_BOX (combobox), 0);
        gtk_combo_box_set_popup_fixed_width (GTK_COMBO_BOX (combobox), FALSE);
 
+        tmp = gtk_frame_new ("Looong");
+        gtk_box_pack_start (GTK_BOX (mainbox), tmp, FALSE, FALSE, 0);
+        combobox = gtk_combo_box_text_new ();
+        for (i = 0; i < 200; i++)
+          {
+            text = g_strdup_printf ("Item %d", i);
+            gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combobox), text);
+            g_free (text);
+          }
+        gtk_combo_box_set_active (GTK_COMBO_BOX (combobox), 53);
+        gtk_container_add (GTK_CONTAINER (tmp), combobox);
+
         gtk_widget_show_all (window);
 
         gtk_main ();