[gtk+] Do not bother starting a draw call if bar_size <= 0

[Kristian Rietveld <kristian src gnome org>]

commit 137f16c4c50f9b7f132d74ffa95e562c29a50651
Author: Kristian Rietveld <kris gtk org>
Date:   Sun Dec 5 13:56:24 2010 +0100

    Do not bother starting a draw call if bar_size <= 0

 gtk/gtkcellrendererprogress.c |   13 +++++++------
 1 files changed, 7 insertions(+), 6 deletions(-)
---
diff --git a/gtk/gtkcellrendererprogress.c b/gtk/gtkcellrendererprogress.c
index 20abba0..f226eb7 100644
--- a/gtk/gtkcellrendererprogress.c
+++ b/gtk/gtkcellrendererprogress.c
@@ -604,12 +604,13 @@ gtk_cell_renderer_progress_render (GtkCellRenderer      *cell,
       clip.y = bar_position;
     }
 
-  gtk_paint_box (style,
-                       cr,
-                       GTK_STATE_SELECTED, GTK_SHADOW_OUT,
-                       widget, "bar",
-                       clip.x, clip.y,
-                       clip.width, clip.height);
+  if (bar_size > 0)
+    gtk_paint_box (style,
+                   cr,
+                   GTK_STATE_SELECTED, GTK_SHADOW_OUT,
+                   widget, "bar",
+                   clip.x, clip.y,
+                   clip.width, clip.height);
 
   if (priv->label)
     {