[gtk+] spinner: don't expand to fill the allocated space

[William Jon McCann <mccann src gnome org>]

commit b33877e1737a7799b29f5b3a3d291e55e95e8436
Author: William Jon McCann <william jon mccann gmail com>
Date:   Thu Oct 10 16:54:16 2013 -0400

    spinner: don't expand to fill the allocated space
    
    Spinners are essentially animated symbolic icons. We don't really
    want them being rendered to arbitrary sizes. Also the current
    technique for rendering the activity is not suitable for larger
    sizes. Until we have a better technique we should limit the size
    to the MENU icon size or exactly twice that size.

 gtk/gtkspinner.c |    8 +++++++-
 1 files changed, 7 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtkspinner.c b/gtk/gtkspinner.c
index 50ae613..ec882b1 100644
--- a/gtk/gtkspinner.c
+++ b/gtk/gtkspinner.c
@@ -52,7 +52,7 @@
  */
 
 
-#define SPINNER_SIZE 12
+#define SPINNER_SIZE 16
 
 enum {
   PROP_0,
@@ -205,6 +205,12 @@ gtk_spinner_draw (GtkWidget *widget,
   height = gtk_widget_get_allocated_height (widget);
   size = MIN (width, height);
 
+  /* at most allow a double size spinner */
+  if (size >= 3 * SPINNER_SIZE)
+    size = SPINNER_SIZE * 2;
+  else
+    size = SPINNER_SIZE;
+
   gtk_render_activity (context, cr,
                        (width - size) / 2,
                        (height - size) / 2,