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/* Clutter.
* An OpenGL based 'interactive canvas' library.
*
* Copyright (C) 2015 Red Hat
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
* Authored by:
* Carlos Garnacho <carlosg@gnome.org>
*/
#include "config.h"
#include "clutter/clutter-device-manager-private.h"
#include "clutter/clutter-event-private.h"
#include "clutter-input-device-evdev.h"
#include "clutter-evdev.h"
typedef struct _ClutterEventEvdev ClutterEventEvdev;
struct _ClutterEventEvdev
{
guint32 evcode;
guint64 time_usec;
gboolean has_relative_motion;
double dx;
double dy;
double dx_unaccel;
double dy_unaccel;
};
static ClutterEventEvdev *
_clutter_event_evdev_new (void)
{
return g_slice_new0 (ClutterEventEvdev);
}
ClutterEventEvdev *
_clutter_event_evdev_copy (ClutterEventEvdev *event_evdev)
{
if (event_evdev != NULL)
return g_slice_dup (ClutterEventEvdev, event_evdev);
return NULL;
}
void
_clutter_event_evdev_free (ClutterEventEvdev *event_evdev)
{
if (event_evdev != NULL)
g_slice_free (ClutterEventEvdev, event_evdev);
}
static ClutterEventEvdev *
clutter_evdev_event_ensure_platform_data (ClutterEvent *event)
{
ClutterEventEvdev *event_evdev = _clutter_event_get_platform_data (event);
if (!event_evdev)
{
event_evdev = _clutter_event_evdev_new ();
_clutter_event_set_platform_data (event, event_evdev);
}
return event_evdev;
}
void
_clutter_evdev_event_set_event_code (ClutterEvent *event,
guint32 evcode)
{
ClutterEventEvdev *event_evdev;
event_evdev = clutter_evdev_event_ensure_platform_data (event);
event_evdev->evcode = evcode;
}
void
_clutter_evdev_event_set_time_usec (ClutterEvent *event,
guint64 time_usec)
{
ClutterEventEvdev *event_evdev;
event_evdev = clutter_evdev_event_ensure_platform_data (event);
event_evdev->time_usec = time_usec;
}
void
_clutter_evdev_event_set_relative_motion (ClutterEvent *event,
double dx,
double dy,
double dx_unaccel,
double dy_unaccel)
{
ClutterEventEvdev *event_evdev;
event_evdev = clutter_evdev_event_ensure_platform_data (event);
event_evdev->dx = dx;
event_evdev->dy = dy;
event_evdev->dx_unaccel = dx_unaccel;
event_evdev->dy_unaccel = dy_unaccel;
event_evdev->has_relative_motion = TRUE;
}
/**
* clutter_evdev_event_get_event_code:
* @event: a #ClutterEvent
*
* Returns the event code of the original event. See linux/input.h for more
* information.
*
* Returns: The event code.
**/
guint32
clutter_evdev_event_get_event_code (const ClutterEvent *event)
{
ClutterEventEvdev *event_evdev = _clutter_event_get_platform_data (event);
if (event_evdev)
return event_evdev->evcode;
return 0;
}
/**
* clutter_evdev_event_get_time_usec:
* @event: a #ClutterEvent
*
* Returns the time in microsecond granularity, or 0 if unavailable.
*
* Returns: The time in microsecond granularity, or 0 if unavailable.
*/
guint64
clutter_evdev_event_get_time_usec (const ClutterEvent *event)
{
ClutterEventEvdev *event_evdev = _clutter_event_get_platform_data (event);
if (event_evdev)
return event_evdev->time_usec;
return 0;
}
/**
* clutter_evdev_event_get_pointer_motion
* @event: a #ClutterEvent
*
* If available, the normal and unaccelerated motion deltas are written
* to the dx, dy, dx_unaccel and dy_unaccel and TRUE is returned.
*
* If unavailable, FALSE is returned.
*
* Returns: TRUE on success, otherwise FALSE.
**/
gboolean
clutter_evdev_event_get_relative_motion (const ClutterEvent *event,
double *dx,
double *dy,
double *dx_unaccel,
double *dy_unaccel)
{
ClutterEventEvdev *event_evdev = _clutter_event_get_platform_data (event);
if (event_evdev && event_evdev->has_relative_motion)
{
if (dx)
*dx = event_evdev->dx;
if (dy)
*dy = event_evdev->dy;
if (dx_unaccel)
*dx_unaccel = event_evdev->dx_unaccel;
if (dy_unaccel)
*dy_unaccel = event_evdev->dy_unaccel;
return TRUE;
}
else
return FALSE;
}
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