textlayout: Allow querying empty areas

This only happens when the textview has no content, but it does happen
now that such a textview gets allocated 0x0 and not 1x1.

diff --git a/gtk/gtktextlayout.c b/gtk/gtktextlayout.c
index 51ac51a3b6e54e194bb1543b4ed02dba8e8e6312..7947eadcf803dfcdf7b7dd6aea28ed31ee00168d 100644 (file)
--- a/gtk/gtktextlayout.c
+++ b/gtk/gtktextlayout.c
@@ -722,7 +722,9 @@ gtk_text_layout_get_lines (GtkTextLayout *layout,
   GSList *retval;
 
   g_return_val_if_fail (GTK_IS_TEXT_LAYOUT (layout), NULL);
-  g_return_val_if_fail (bottom_y > top_y, NULL);
+
+  if (top_y <= bottom_y)
+    return NULL;
 
   retval = NULL;