mutter/clutter/clutter/clutter-event.h
Carlos Garnacho 765f41de80 clutter: Add ClutterPreeditResetMode hint to preedit text
This mode is passed along by the ClutterInputMethod, the
ClutterInputFocus will preserve it and ensure it is honored
whenever the IM is being reset.

This mode is immediate. The ClutterInputFocus commits the
text directly without queueing a CLUTTER_IM_COMMIT event.
This is important so events are serialized in the right order
in the wayland implementations (i.e. commit before wl_pointer.press).

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1940>
2021-09-03 22:05:46 +00:00

831 lines
27 KiB
C

/*
* Clutter.
*
* An OpenGL based 'interactive canvas' library.
*
* Authored By Matthew Allum <mallum@openedhand.com>
*
* Copyright (C) 2006 OpenedHand
*
* 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/>.
*/
#ifndef __CLUTTER_EVENT_H__
#define __CLUTTER_EVENT_H__
#if !defined(__CLUTTER_H_INSIDE__) && !defined(CLUTTER_COMPILATION)
#error "Only <clutter/clutter.h> can be included directly."
#endif
#include <clutter/clutter-types.h>
#include <clutter/clutter-input-device.h>
G_BEGIN_DECLS
#define CLUTTER_TYPE_EVENT (clutter_event_get_type ())
#define CLUTTER_TYPE_EVENT_SEQUENCE (clutter_event_sequence_get_type ())
/**
* CLUTTER_PRIORITY_EVENTS:
*
* Priority for event handling.
*
* Since: 0.4
*/
#define CLUTTER_PRIORITY_EVENTS (G_PRIORITY_DEFAULT)
/**
* CLUTTER_CURRENT_TIME:
*
* Default value for "now".
*
* Since: 0.4
*/
#define CLUTTER_CURRENT_TIME (0L)
/**
* CLUTTER_EVENT_PROPAGATE:
*
* Continues the propagation of an event; this macro should be
* used in event-related signals.
*
* Since: 1.10
*/
#define CLUTTER_EVENT_PROPAGATE (FALSE)
/**
* CLUTTER_EVENT_STOP:
*
* Stops the propagation of an event; this macro should be used
* in event-related signals.
*
* Since: 1.10
*/
#define CLUTTER_EVENT_STOP (TRUE)
/**
* CLUTTER_BUTTON_PRIMARY:
*
* The primary button of a pointer device.
*
* This is typically the left mouse button in a right-handed
* mouse configuration.
*
* Since: 1.10
*/
#define CLUTTER_BUTTON_PRIMARY (1)
/**
* CLUTTER_BUTTON_MIDDLE:
*
* The middle button of a pointer device.
*
* Since: 1.10
*/
#define CLUTTER_BUTTON_MIDDLE (2)
/**
* CLUTTER_BUTTON_SECONDARY:
*
* The secondary button of a pointer device.
*
* This is typically the right mouse button in a right-handed
* mouse configuration.
*
* Since: 1.10
*/
#define CLUTTER_BUTTON_SECONDARY (3)
typedef struct _ClutterAnyEvent ClutterAnyEvent;
typedef struct _ClutterButtonEvent ClutterButtonEvent;
typedef struct _ClutterKeyEvent ClutterKeyEvent;
typedef struct _ClutterMotionEvent ClutterMotionEvent;
typedef struct _ClutterScrollEvent ClutterScrollEvent;
typedef struct _ClutterCrossingEvent ClutterCrossingEvent;
typedef struct _ClutterTouchEvent ClutterTouchEvent;
typedef struct _ClutterTouchpadPinchEvent ClutterTouchpadPinchEvent;
typedef struct _ClutterTouchpadSwipeEvent ClutterTouchpadSwipeEvent;
typedef struct _ClutterProximityEvent ClutterProximityEvent;
typedef struct _ClutterPadButtonEvent ClutterPadButtonEvent;
typedef struct _ClutterPadStripEvent ClutterPadStripEvent;
typedef struct _ClutterPadRingEvent ClutterPadRingEvent;
typedef struct _ClutterDeviceEvent ClutterDeviceEvent;
typedef struct _ClutterIMEvent ClutterIMEvent;
/**
* ClutterAnyEvent:
* @type: event type
* @time: event time
* @flags: event flags
* @source: event source actor
*
* Common members for a #ClutterEvent
*
* Since: 0.2
*/
struct _ClutterAnyEvent
{
ClutterEventType type;
guint32 time;
ClutterEventFlags flags;
ClutterStage *stage;
ClutterActor *source;
};
/**
* ClutterKeyEvent:
* @type: event type
* @time: event time
* @flags: event flags
* @stage: event source stage
* @source: event source actor
* @modifier_state: key modifiers
* @keyval: raw key value
* @hardware_keycode: raw hardware key value
* @unicode_value: Unicode representation
* @device: the device that originated the event. If you want the physical
* device the event originated from, use clutter_event_get_source_device()
*
* Key event
*
* Since: 0.2
*/
struct _ClutterKeyEvent
{
ClutterEventType type;
guint32 time;
ClutterEventFlags flags;
ClutterStage *stage;
ClutterActor *source;
ClutterModifierType modifier_state;
guint keyval;
guint16 hardware_keycode;
gunichar unicode_value;
uint32_t evdev_code;
ClutterInputDevice *device;
};
/**
* ClutterButtonEvent:
* @type: event type
* @time: event time
* @flags: event flags
* @stage: event source stage
* @source: event source actor
* @x: event X coordinate, relative to the stage
* @y: event Y coordinate, relative to the stage
* @modifier_state: button modifiers
* @button: event button
* @click_count: number of button presses within the default time
* and radius
* @axes: reserved for future use
* @device: the device that originated the event. If you want the physical
* device the event originated from, use clutter_event_get_source_device()
*
* Button event.
*
* The event coordinates are relative to the stage that received the
* event, and can be transformed into actor-relative coordinates by
* using clutter_actor_transform_stage_point().
*
* Since: 0.2
*/
struct _ClutterButtonEvent
{
ClutterEventType type;
guint32 time;
ClutterEventFlags flags;
ClutterStage *stage;
ClutterActor *source;
gfloat x;
gfloat y;
ClutterModifierType modifier_state;
guint32 button;
guint click_count;
gdouble *axes; /* Future use */
ClutterInputDevice *device;
uint32_t evdev_code;
};
/**
* ClutterProximityEvent:
* @type: event type
* @time: event time
* @flags: event flags
* @stage: event source stage
* @source: event source actor
* @device: the device that originated the event. If you want the physical
* device the event originated from, use clutter_event_get_source_device()
*
* Event for tool proximity in tablet devices
*
* Since: 1.28
*/
struct _ClutterProximityEvent
{
ClutterEventType type;
guint32 time;
ClutterEventFlags flags;
ClutterStage *stage;
ClutterActor *source;
ClutterInputDevice *device;
};
/**
* ClutterCrossingEvent:
* @type: event type
* @time: event time
* @flags: event flags
* @stage: event source stage
* @source: event source actor
* @x: event X coordinate
* @y: event Y coordinate
* @related: actor related to the crossing
* @device: the device that originated the event. If you want the physical
* device the event originated from, use clutter_event_get_source_device()
*
* Event for the movement of the pointer across different actors
*
* Since: 0.2
*/
struct _ClutterCrossingEvent
{
ClutterEventType type;
guint32 time;
ClutterEventFlags flags;
ClutterStage *stage;
ClutterActor *source;
gfloat x;
gfloat y;
ClutterInputDevice *device;
ClutterEventSequence *sequence;
ClutterActor *related;
};
/**
* ClutterMotionEvent:
* @type: event type
* @time: event time
* @flags: event flags
* @stage: event source stage
* @source: event source actor
* @x: event X coordinate
* @y: event Y coordinate
* @modifier_state: button modifiers
* @axes: reserved for future use
* @device: the device that originated the event. If you want the physical
* device the event originated from, use clutter_event_get_source_device()
*
* Event for the pointer motion
*
* Since: 0.2
*/
struct _ClutterMotionEvent
{
ClutterEventType type;
guint32 time;
ClutterEventFlags flags;
ClutterStage *stage;
ClutterActor *source;
gfloat x;
gfloat y;
ClutterModifierType modifier_state;
gdouble *axes; /* Future use */
ClutterInputDevice *device;
int64_t time_us;
double dx;
double dy;
double dx_unaccel;
double dy_unaccel;
};
/**
* ClutterScrollEvent:
* @type: event type
* @time: event time
* @flags: event flags
* @stage: event source stage
* @source: event source actor
* @x: event X coordinate
* @y: event Y coordinate
* @direction: direction of the scrolling
* @modifier_state: button modifiers
* @axes: reserved for future use
* @device: the device that originated the event. If you want the physical
* device the event originated from, use clutter_event_get_source_device()
* @scroll_source: the source of scroll events. This field is available since 1.26
* @finish_flags: the axes that were stopped in this event. This field is available since 1.26
*
* Scroll wheel (or similar device) event
*
* Since: 0.2
*/
struct _ClutterScrollEvent
{
ClutterEventType type;
guint32 time;
ClutterEventFlags flags;
ClutterStage *stage;
ClutterActor *source;
gfloat x;
gfloat y;
ClutterScrollDirection direction;
ClutterModifierType modifier_state;
gdouble *axes; /* future use */
ClutterInputDevice *device;
ClutterScrollSource scroll_source;
ClutterScrollFinishFlags finish_flags;
};
/**
* ClutterTouchEvent:
* @type: event type
* @time: event time
* @flags: event flags
* @stage: event source stage
* @source: event source actor (unused)
* @x: the X coordinate of the pointer, relative to the stage
* @y: the Y coordinate of the pointer, relative to the stage
* @sequence: the event sequence that this event belongs to
* @modifier_state: (type ClutterModifierType): a bit-mask representing the state
* of modifier keys (e.g. Control, Shift, and Alt) and the pointer
* buttons. See #ClutterModifierType
* @axes: reserved
* @device: the device that originated the event. If you want the physical
* device the event originated from, use clutter_event_get_source_device()
*
* Used for touch events.
*
* The @type field will be one of %CLUTTER_TOUCH_BEGIN, %CLUTTER_TOUCH_END,
* %CLUTTER_TOUCH_UPDATE, or %CLUTTER_TOUCH_CANCEL.
*
* Touch events are grouped into sequences; each touch sequence will begin
* with a %CLUTTER_TOUCH_BEGIN event, progress with %CLUTTER_TOUCH_UPDATE
* events, and end either with a %CLUTTER_TOUCH_END event or with a
* %CLUTTER_TOUCH_CANCEL event.
*
* With multi-touch capable devices there can be multiple event sequence
* running at the same time.
*
* Since: 1.10
*/
struct _ClutterTouchEvent
{
ClutterEventType type;
guint32 time;
ClutterEventFlags flags;
ClutterStage *stage;
ClutterActor *source;
gfloat x;
gfloat y;
ClutterEventSequence *sequence;
ClutterModifierType modifier_state;
gdouble *axes; /* reserved */
ClutterInputDevice *device;
};
/**
* ClutterTouchpadPinchEvent:
* @type: event type
* @time: event time
* @flags: event flags
* @stage: event source stage
* @source: event source actor (unused)
* @phase: the current phase of the gesture
* @x: the X coordinate of the pointer, relative to the stage
* @y: the Y coordinate of the pointer, relative to the stage
* @dx: movement delta of the pinch focal point in the X axis
* @dy: movement delta of the pinch focal point in the Y axis
* @dx_unaccel: unaccelerated movement delta of the pinch focal
* point in the X axis
* @dy_unaccel: unaccelerated movement delta of the pinch focal
* point in the Y axis
* @angle_delta: angle delta in degrees, clockwise rotations are
* represented by positive deltas
* @scale: the current scale
*
* Used for touchpad pinch gesture events. The current state of the
* gesture will be determined by the @phase field.
*
* Each event with phase %CLUTTER_TOUCHPAD_GESTURE_PHASE_BEGIN
* will report a @scale of 1.0, all later phases in the gesture
* report the current scale relative to the initial 1.0 value
* (eg. 0.5 being half the size, 2.0 twice as big).
*
* Since: 1.24
*/
struct _ClutterTouchpadPinchEvent
{
ClutterEventType type;
guint32 time;
ClutterEventFlags flags;
ClutterStage *stage;
ClutterActor *source;
ClutterTouchpadGesturePhase phase;
gfloat x;
gfloat y;
gfloat dx;
gfloat dy;
gfloat dx_unaccel;
gfloat dy_unaccel;
gfloat angle_delta;
gfloat scale;
guint n_fingers;
};
/**
* ClutterTouchpadSwipeEvent
* @type: event type
* @time: event time
* @flags: event flags
* @stage: event source stage
* @source: event source actor (unused)
* @phase: the current phase of the gesture
* @n_fingers: the number of fingers triggering the swipe
* @x: the X coordinate of the pointer, relative to the stage
* @y: the Y coordinate of the pointer, relative to the stage
* @dx: movement delta of the swipe center point in the X axis
* @dy: movement delta of the swipe center point in the Y axis
* @dx_unaccel: unaccelerated movement delta of the swipe center
* point in the X axis
* @dy_unaccel: unaccelerated movement delta of the swipe center
* point in the Y axis
*
* Used for touchpad swipe gesture events. The current state of the
* gesture will be determined by the @phase field.
*
* Since: 1.24
*/
struct _ClutterTouchpadSwipeEvent
{
ClutterEventType type;
guint32 time;
ClutterEventFlags flags;
ClutterStage *stage;
ClutterActor *source;
ClutterTouchpadGesturePhase phase;
guint n_fingers;
gfloat x;
gfloat y;
gfloat dx;
gfloat dy;
gfloat dx_unaccel;
gfloat dy_unaccel;
};
struct _ClutterPadButtonEvent
{
ClutterEventType type;
guint32 time;
ClutterEventFlags flags;
ClutterStage *stage;
ClutterActor *source;
guint32 button;
guint32 group;
ClutterInputDevice *device;
guint32 mode;
};
struct _ClutterPadStripEvent
{
ClutterEventType type;
guint32 time;
ClutterEventFlags flags;
ClutterStage *stage;
ClutterActor *source;
ClutterInputDevice *device;
ClutterInputDevicePadSource strip_source;
guint32 strip_number;
guint32 group;
gdouble value;
guint32 mode;
};
struct _ClutterPadRingEvent
{
ClutterEventType type;
guint32 time;
ClutterEventFlags flags;
ClutterStage *stage;
ClutterActor *source;
ClutterInputDevice *device;
ClutterInputDevicePadSource ring_source;
guint32 ring_number;
guint32 group;
gdouble angle;
guint32 mode;
};
struct _ClutterDeviceEvent
{
ClutterEventType type;
guint32 time;
ClutterEventFlags flags;
ClutterStage *stage;
ClutterActor *source;
ClutterInputDevice *device;
};
struct _ClutterIMEvent
{
ClutterEventType type;
uint32_t time;
ClutterEventFlags flags;
ClutterStage *stage;
ClutterActor *source;
char *text;
int32_t offset;
uint32_t len;
ClutterPreeditResetMode mode;
};
/**
* ClutterEvent:
*
* Generic event wrapper.
*
* Since: 0.2
*/
union _ClutterEvent
{
/*< private >*/
ClutterEventType type;
ClutterAnyEvent any;
ClutterButtonEvent button;
ClutterKeyEvent key;
ClutterMotionEvent motion;
ClutterScrollEvent scroll;
ClutterCrossingEvent crossing;
ClutterTouchEvent touch;
ClutterTouchpadPinchEvent touchpad_pinch;
ClutterTouchpadSwipeEvent touchpad_swipe;
ClutterProximityEvent proximity;
ClutterPadButtonEvent pad_button;
ClutterPadStripEvent pad_strip;
ClutterPadRingEvent pad_ring;
ClutterDeviceEvent device;
ClutterIMEvent im;
};
/**
* ClutterEventFilterFunc:
* @event: the event that is going to be emitted
* @user_data: the data pointer passed to clutter_event_add_filter()
*
* A function pointer type used by event filters that are added with
* clutter_event_add_filter().
*
* Return value: %CLUTTER_EVENT_STOP to indicate that the event
* has been handled or %CLUTTER_EVENT_PROPAGATE otherwise.
* Returning %CLUTTER_EVENT_STOP skips any further filter
* functions and prevents the signal emission for the event.
*
* Since: 1.18
*/
typedef gboolean (* ClutterEventFilterFunc) (const ClutterEvent *event,
gpointer user_data);
CLUTTER_EXPORT
GType clutter_event_get_type (void) G_GNUC_CONST;
CLUTTER_EXPORT
GType clutter_event_sequence_get_type (void) G_GNUC_CONST;
CLUTTER_EXPORT
gboolean clutter_events_pending (void);
CLUTTER_EXPORT
ClutterEvent * clutter_event_get (void);
CLUTTER_EXPORT
void clutter_event_put (const ClutterEvent *event);
CLUTTER_EXPORT
guint clutter_event_add_filter (ClutterStage *stage,
ClutterEventFilterFunc func,
GDestroyNotify notify,
gpointer user_data);
CLUTTER_EXPORT
void clutter_event_remove_filter (guint id);
CLUTTER_EXPORT
ClutterEvent * clutter_event_new (ClutterEventType type);
CLUTTER_EXPORT
ClutterEvent * clutter_event_copy (const ClutterEvent *event);
CLUTTER_EXPORT
void clutter_event_free (ClutterEvent *event);
CLUTTER_EXPORT
ClutterEventType clutter_event_type (const ClutterEvent *event);
CLUTTER_EXPORT
void clutter_event_set_flags (ClutterEvent *event,
ClutterEventFlags flags);
CLUTTER_EXPORT
ClutterEventFlags clutter_event_get_flags (const ClutterEvent *event);
CLUTTER_EXPORT
void clutter_event_set_time (ClutterEvent *event,
guint32 time_);
CLUTTER_EXPORT
guint32 clutter_event_get_time (const ClutterEvent *event);
CLUTTER_EXPORT
void clutter_event_set_state (ClutterEvent *event,
ClutterModifierType state);
CLUTTER_EXPORT
ClutterModifierType clutter_event_get_state (const ClutterEvent *event);
CLUTTER_EXPORT
void clutter_event_get_state_full (const ClutterEvent *event,
ClutterModifierType *button_state,
ClutterModifierType *base_state,
ClutterModifierType *latched_state,
ClutterModifierType *locked_state,
ClutterModifierType *effective_state);
CLUTTER_EXPORT
void clutter_event_set_device (ClutterEvent *event,
ClutterInputDevice *device);
CLUTTER_EXPORT
ClutterInputDevice * clutter_event_get_device (const ClutterEvent *event);
CLUTTER_EXPORT
void clutter_event_set_source_device (ClutterEvent *event,
ClutterInputDevice *device);
CLUTTER_EXPORT
ClutterInputDevice * clutter_event_get_source_device (const ClutterEvent *event);
CLUTTER_EXPORT
void clutter_event_set_device_tool (ClutterEvent *event,
ClutterInputDeviceTool *tool);
CLUTTER_EXPORT
ClutterInputDeviceTool *clutter_event_get_device_tool (const ClutterEvent *event);
CLUTTER_EXPORT
void clutter_event_set_source (ClutterEvent *event,
ClutterActor *actor);
CLUTTER_EXPORT
ClutterActor * clutter_event_get_source (const ClutterEvent *event);
CLUTTER_EXPORT
void clutter_event_set_stage (ClutterEvent *event,
ClutterStage *stage);
CLUTTER_EXPORT
ClutterStage * clutter_event_get_stage (const ClutterEvent *event);
CLUTTER_EXPORT
ClutterInputDeviceType clutter_event_get_device_type (const ClutterEvent *event);
CLUTTER_EXPORT
void clutter_event_set_coords (ClutterEvent *event,
gfloat x,
gfloat y);
CLUTTER_EXPORT
void clutter_event_get_coords (const ClutterEvent *event,
gfloat *x,
gfloat *y);
CLUTTER_EXPORT
void clutter_event_get_position (const ClutterEvent *event,
graphene_point_t *position);
CLUTTER_EXPORT
float clutter_event_get_distance (const ClutterEvent *source,
const ClutterEvent *target);
CLUTTER_EXPORT
double clutter_event_get_angle (const ClutterEvent *source,
const ClutterEvent *target);
CLUTTER_EXPORT
gdouble * clutter_event_get_axes (const ClutterEvent *event,
guint *n_axes);
CLUTTER_EXPORT
gboolean clutter_event_has_shift_modifier (const ClutterEvent *event);
CLUTTER_EXPORT
gboolean clutter_event_has_control_modifier (const ClutterEvent *event);
CLUTTER_EXPORT
gboolean clutter_event_is_pointer_emulated (const ClutterEvent *event);
CLUTTER_EXPORT
void clutter_event_set_key_symbol (ClutterEvent *event,
guint key_sym);
CLUTTER_EXPORT
guint clutter_event_get_key_symbol (const ClutterEvent *event);
CLUTTER_EXPORT
void clutter_event_set_key_code (ClutterEvent *event,
guint16 key_code);
CLUTTER_EXPORT
guint16 clutter_event_get_key_code (const ClutterEvent *event);
CLUTTER_EXPORT
void clutter_event_set_key_unicode (ClutterEvent *event,
gunichar key_unicode);
CLUTTER_EXPORT
gunichar clutter_event_get_key_unicode (const ClutterEvent *event);
CLUTTER_EXPORT
void clutter_event_set_button (ClutterEvent *event,
guint32 button);
CLUTTER_EXPORT
guint32 clutter_event_get_button (const ClutterEvent *event);
CLUTTER_EXPORT
guint clutter_event_get_click_count (const ClutterEvent *event);
CLUTTER_EXPORT
void clutter_event_set_related (ClutterEvent *event,
ClutterActor *actor);
CLUTTER_EXPORT
ClutterActor * clutter_event_get_related (const ClutterEvent *event);
CLUTTER_EXPORT
void clutter_event_set_scroll_direction (ClutterEvent *event,
ClutterScrollDirection direction);
CLUTTER_EXPORT
ClutterScrollDirection clutter_event_get_scroll_direction (const ClutterEvent *event);
CLUTTER_EXPORT
void clutter_event_set_scroll_delta (ClutterEvent *event,
gdouble dx,
gdouble dy);
CLUTTER_EXPORT
void clutter_event_get_scroll_delta (const ClutterEvent *event,
gdouble *dx,
gdouble *dy);
CLUTTER_EXPORT
ClutterEventSequence * clutter_event_get_event_sequence (const ClutterEvent *event);
CLUTTER_EXPORT
guint32 clutter_keysym_to_unicode (guint keyval);
CLUTTER_EXPORT
guint clutter_unicode_to_keysym (guint32 wc);
CLUTTER_EXPORT
guint32 clutter_get_current_event_time (void);
CLUTTER_EXPORT
const ClutterEvent * clutter_get_current_event (void);
CLUTTER_EXPORT
guint clutter_event_get_touchpad_gesture_finger_count (const ClutterEvent *event);
CLUTTER_EXPORT
gdouble clutter_event_get_gesture_pinch_angle_delta (const ClutterEvent *event);
CLUTTER_EXPORT
gdouble clutter_event_get_gesture_pinch_scale (const ClutterEvent *event);
CLUTTER_EXPORT
ClutterTouchpadGesturePhase clutter_event_get_gesture_phase (const ClutterEvent *event);
CLUTTER_EXPORT
void clutter_event_get_gesture_motion_delta (const ClutterEvent *event,
gdouble *dx,
gdouble *dy);
CLUTTER_EXPORT
void clutter_event_get_gesture_motion_delta_unaccelerated (const ClutterEvent *event,
gdouble *dx,
gdouble *dy);
CLUTTER_EXPORT
ClutterScrollSource clutter_event_get_scroll_source (const ClutterEvent *event);
CLUTTER_EXPORT
ClutterScrollFinishFlags clutter_event_get_scroll_finish_flags (const ClutterEvent *event);
CLUTTER_EXPORT
guint clutter_event_get_mode_group (const ClutterEvent *event);
CLUTTER_EXPORT
gboolean clutter_event_get_pad_event_details (const ClutterEvent *event,
guint *number,
guint *mode,
gdouble *value);
CLUTTER_EXPORT
uint32_t clutter_event_get_event_code (const ClutterEvent *event);
CLUTTER_EXPORT
int32_t clutter_event_sequence_get_slot (const ClutterEventSequence *sequence);
CLUTTER_EXPORT
int64_t clutter_event_get_time_us (const ClutterEvent *event);
CLUTTER_EXPORT
gboolean clutter_event_get_relative_motion (const ClutterEvent *event,
double *dx,
double *dy,
double *dx_unaccel,
double *dy_unaccel);
G_END_DECLS
#endif /* __CLUTTER_EVENT_H__ */