[gtk+] gtkhsv: Use symbolic names for button numbers

[Carlos Garcia Campos <carlosgc src gnome org>]

commit 203f600373d736853f7dc335275de8c586cd2cdc
Author: Carlos Garcia Campos <cgarcia igalia com>
Date:   Wed Jan 25 18:31:32 2012 +0100

    gtkhsv: Use symbolic names for button numbers

 gtk/gtkhsv.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/gtk/gtkhsv.c b/gtk/gtkhsv.c
index 044a3a3..e375667 100644
--- a/gtk/gtkhsv.c
+++ b/gtk/gtkhsv.c
@@ -723,7 +723,7 @@ gtk_hsv_button_press (GtkWidget      *widget,
   GtkHSVPrivate *priv = hsv->priv;
   double x, y;
 
-  if (priv->mode != DRAG_NONE || event->button != 1)
+  if (priv->mode != DRAG_NONE || event->button != GDK_BUTTON_PRIMARY)
     return FALSE;
 
   x = event->x;
@@ -773,7 +773,7 @@ gtk_hsv_button_release (GtkWidget      *widget,
   DragMode mode;
   gdouble x, y;
 
-  if (priv->mode == DRAG_NONE || event->button != 1)
+  if (priv->mode == DRAG_NONE || event->button != GDK_BUTTON_PRIMARY)
     return FALSE;
 
   /* Set the drag mode to DRAG_NONE so that signal handlers for "catched"