[gtk+] GtkTextView: Use *some* extra size for horizontal scrolling

[Alexander Larsson <alexl src gnome org>]

commit de1f551271cf4c747efeb5f884df1b424f8c5553
Author: Alexander Larsson <alexl redhat com>
Date:   Mon Aug 26 21:16:27 2013 +0200

    GtkTextView: Use *some* extra size for horizontal scrolling
    
    Horizontal scrolling is unusual, but specifying some extra offscreen
    space for it in free in the normal case where the viewport is the
    same width as the canvas anyway, so lets do it.

 gtk/gtktextview.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtktextview.c b/gtk/gtktextview.c
index 8a96a56..092e322 100644
--- a/gtk/gtktextview.c
+++ b/gtk/gtktextview.c
@@ -3701,7 +3701,7 @@ gtk_text_view_size_allocate (GtkWidget *widget,
 
   DV(g_print(G_STRLOC"\n"));
 
-  _gtk_pixel_cache_set_extra_size (priv->pixel_cache, 0,
+  _gtk_pixel_cache_set_extra_size (priv->pixel_cache, 64,
                                    allocation->height / 2);
 
   gtk_widget_get_allocation (widget, &widget_allocation);