[gtk+] Add _gdk_device_get_axis_info

[Alexander Larsson <alexl src gnome org>]

commit ddd24761fd698f35671a0f649539a4b11705e9fa
Author: Alexander Larsson <alexl redhat com>
Date:   Tue Apr 3 10:54:25 2012 +0200

    Add _gdk_device_get_axis_info
    
    This is needed for the win32 master/slave handling code.

 gdk/gdkdevice.c        |   23 +++++++++++++++++++++++
 gdk/gdkdeviceprivate.h |    7 +++++++
 2 files changed, 30 insertions(+), 0 deletions(-)
---
diff --git a/gdk/gdkdevice.c b/gdk/gdkdevice.c
index cd8bda2..0abfffe 100644
--- a/gdk/gdkdevice.c
+++ b/gdk/gdkdevice.c
@@ -1370,6 +1370,29 @@ _gdk_device_add_axis (GdkDevice   *device,
 }
 
 void
+_gdk_device_get_axis_info (GdkDevice   *device,
+			   guint        index_,
+			   GdkAtom      *label_atom,
+			   GdkAxisUse   *use,
+			   gdouble      *min_value,
+			   gdouble      *max_value,
+			   gdouble      *resolution)
+{
+  GdkAxisInfo *info;
+
+  g_return_if_fail (GDK_IS_DEVICE (device));
+  g_return_if_fail (index_ < device->axes->len);
+
+  info = &g_array_index (device->axes, GdkAxisInfo, index_);
+
+  *label_atom = info->label;
+  *use = info->use;
+  *min_value = info->min_value;
+  *max_value = info->max_value;
+  *resolution = info->resolution;
+}
+
+void
 _gdk_device_set_keys (GdkDevice *device,
                       guint      num_keys)
 {
diff --git a/gdk/gdkdeviceprivate.h b/gdk/gdkdeviceprivate.h
index ff92ea4..f30dbdb 100644
--- a/gdk/gdkdeviceprivate.h
+++ b/gdk/gdkdeviceprivate.h
@@ -121,6 +121,13 @@ guint _gdk_device_add_axis   (GdkDevice   *device,
                               gdouble      min_value,
                               gdouble      max_value,
                               gdouble      resolution);
+void _gdk_device_get_axis_info (GdkDevice  *device,
+				guint       index,
+				GdkAtom    *label_atom,
+				GdkAxisUse *use,
+				gdouble    *min_value,
+				gdouble    *max_value,
+				gdouble    *resolution);
 
 void _gdk_device_set_keys    (GdkDevice   *device,
                               guint        num_keys);