From ea51afb099a6a88288f6b4f0800b16e0ca76d9dc Mon Sep 17 00:00:00 2001
From: Vladimir 'phcoder' Serbinenko <phcoder@gmail.com>
Date: Tue, 5 Jan 2010 23:49:40 +0100
Subject: [PATCH] Use pixmapbar only when images available

---
 gfxmenu/gui_progress_bar.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/gfxmenu/gui_progress_bar.c b/gfxmenu/gui_progress_bar.c
index 9af93cff5..95be91e2a 100644
--- a/gfxmenu/gui_progress_bar.c
+++ b/gfxmenu/gui_progress_bar.c
@@ -46,6 +46,7 @@ struct grub_gui_progress_bar
 
   char *theme_dir;
   int need_to_recreate_pixmaps;
+  int pixmapbar_available;
   char *bar_pattern;
   char *highlight_pattern;
   grub_gfxmenu_box_t bar_box;
@@ -77,6 +78,8 @@ progress_bar_is_instance (void *vself __attribute__((unused)), const char *type)
 static int
 check_pixmaps (grub_gui_progress_bar_t self)
 {
+  if (!self->pixmapbar_available)
+    return 0;
   if (self->need_to_recreate_pixmaps)
     {
       grub_gui_recreate_box (&self->bar_box,
@@ -137,6 +140,7 @@ draw_pixmap_bar (grub_gui_progress_bar_t self)
   int bar_v_pad = bar_t_pad + bar_b_pad;
   int tracklen = w - bar_h_pad;
   int trackheight = h - bar_v_pad;
+
   bar->set_content_size (bar, tracklen, trackheight);
 
   int barwidth = (tracklen
@@ -172,12 +176,16 @@ static void
 progress_bar_paint (void *vself, const grub_video_rect_t *region)
 {
   grub_gui_progress_bar_t self = vself;
+  grub_video_rect_t vpsave;
+
   if (! self->visible)
     return;
   if (!grub_video_have_common_points (region, &self->bounds))
     return;
 
-  grub_video_rect_t vpsave;
+  if (self->end == self->start)
+    return;
+
   grub_gui_set_viewport (&self->bounds, &vpsave);
 
   if (check_pixmaps (self))
@@ -272,12 +280,14 @@ progress_bar_set_property (void *vself, const char *name, const char *value)
   else if (grub_strcmp (name, "bar_style") == 0)
     {
       self->need_to_recreate_pixmaps = 1;
+      self->pixmapbar_available = 1;
       grub_free (self->bar_pattern);
       self->bar_pattern = value ? grub_strdup (value) : 0;
     }
   else if (grub_strcmp (name, "highlight_style") == 0)
     {
       self->need_to_recreate_pixmaps = 1;
+      self->pixmapbar_available = 1;
       grub_free (self->highlight_pattern);
       self->highlight_pattern = value ? grub_strdup (value) : 0;
     }
-- 
2.39.5