From 50e52f550a14e86a689673ce898970337cc46e8b Mon Sep 17 00:00:00 2001
From: Emmanuele Bassi <ebassi@linux.intel.com>
Date: Wed, 19 Jan 2011 13:53:20 +0000
Subject: [PATCH] device: Use a double for translate_axis() argument

While XI1 has axis data in events exposed as integers, XI2 uses double
precision floating point values.
---
 clutter/clutter-device-manager-private.h |  2 +-
 clutter/clutter-input-device.c           | 17 ++++++++++++++++-
 2 files changed, 17 insertions(+), 2 deletions(-)

diff --git a/clutter/clutter-device-manager-private.h b/clutter/clutter-device-manager-private.h
index 67ec1a314..a316f2c68 100644
--- a/clutter/clutter-device-manager-private.h
+++ b/clutter/clutter-device-manager-private.h
@@ -163,7 +163,7 @@ void            _clutter_input_device_select_stage_events       (ClutterInputDev
 
 gboolean        _clutter_input_device_translate_axis            (ClutterInputDevice   *device,
                                                                  guint                 index_,
-                                                                 gint                  value,
+                                                                 gdouble               value,
                                                                  gdouble              *axis_value);
 
 G_END_DECLS
diff --git a/clutter/clutter-input-device.c b/clutter/clutter-input-device.c
index 406102f79..c71bf060e 100644
--- a/clutter/clutter-input-device.c
+++ b/clutter/clutter-input-device.c
@@ -915,10 +915,25 @@ _clutter_input_device_add_axis (ClutterInputDevice *device,
   return pos;
 }
 
+/*< private >
+ * clutter_input_translate_axis:
+ * @device: a #ClutterInputDevice
+ * @index_: the index of the axis
+ * @gint: the absolute value of the axis
+ * @axis_value: (out): the translated value of the axis
+ *
+ * Performs a conversion from the absolute value of the axis
+ * to a relative value.
+ *
+ * The axis at @index_ must not be %CLUTTER_INPUT_AXIS_X or
+ * %CLUTTER_INPUT_AXIS_Y.
+ *
+ * Return value: %TRUE if the conversion was successful
+ */
 gboolean
 _clutter_input_device_translate_axis (ClutterInputDevice *device,
                                       guint               index_,
-                                      gint                value,
+                                      gdouble             value,
                                       gdouble            *axis_value)
 {
   ClutterAxisInfo *info;