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mutter/clutter/clutter-event.h

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/*
* 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/>.
*/
#if !defined(__CLUTTER_H_INSIDE__) && !defined(CLUTTER_COMPILATION)
#error "Only <clutter/clutter.h> can be included directly."
#endif
#ifndef __CLUTTER_EVENT_H__
#define __CLUTTER_EVENT_H__
#include <glib-object.h>
#include <clutter/clutter-input-device.h>
#include <clutter/clutter-types.h>
#define CLUTTER_TYPE_EVENT (clutter_event_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
G_BEGIN_DECLS
/**
* ClutterModifierType:
* @CLUTTER_SHIFT_MASK: Mask applied by the Shift key
* @CLUTTER_LOCK_MASK: Mask applied by the Caps Lock key
* @CLUTTER_CONTROL_MASK: Mask applied by the Control key
* @CLUTTER_MOD1_MASK: Mask applied by the first Mod key
* @CLUTTER_MOD2_MASK: Mask applied by the second Mod key
* @CLUTTER_MOD3_MASK: Mask applied by the third Mod key
* @CLUTTER_MOD4_MASK: Mask applied by the fourth Mod key
* @CLUTTER_MOD5_MASK: Mask applied by the fifth Mod key
* @CLUTTER_BUTTON1_MASK: Mask applied by the first pointer button
* @CLUTTER_BUTTON2_MASK: Mask applied by the second pointer button
* @CLUTTER_BUTTON3_MASK: Mask applied by the third pointer button
* @CLUTTER_BUTTON4_MASK: Mask applied by the fourth pointer button
* @CLUTTER_BUTTON5_MASK: Mask applied by the fifth pointer button
* @CLUTTER_SUPER_MASK: Mask applied by the Super key
* @CLUTTER_HYPER_MASK: Mask applied by the Hyper key
* @CLUTTER_META_MASK: Mask applied by the Meta key
* @CLUTTER_RELEASE_MASK: Mask applied during release
* @CLUTTER_MODIFIER_MASK: A mask covering all modifier types
*
* Masks applied to a #ClutterEvent by modifiers.
*
* Since: 0.4
*/
typedef enum {
CLUTTER_SHIFT_MASK = 1 << 0,
CLUTTER_LOCK_MASK = 1 << 1,
CLUTTER_CONTROL_MASK = 1 << 2,
CLUTTER_MOD1_MASK = 1 << 3,
CLUTTER_MOD2_MASK = 1 << 4,
CLUTTER_MOD3_MASK = 1 << 5,
CLUTTER_MOD4_MASK = 1 << 6,
CLUTTER_MOD5_MASK = 1 << 7,
CLUTTER_BUTTON1_MASK = 1 << 8,
CLUTTER_BUTTON2_MASK = 1 << 9,
CLUTTER_BUTTON3_MASK = 1 << 10,
CLUTTER_BUTTON4_MASK = 1 << 11,
CLUTTER_BUTTON5_MASK = 1 << 12,
/* bits 15 to 25 are currently unused; bit 29 is used internally */
CLUTTER_SUPER_MASK = 1 << 26,
CLUTTER_HYPER_MASK = 1 << 27,
CLUTTER_META_MASK = 1 << 28,
CLUTTER_RELEASE_MASK = 1 << 30,
CLUTTER_MODIFIER_MASK = 0x5c001fff
} ClutterModifierType;
/**
* ClutterEventFlags:
* @CLUTTER_EVENT_NONE: No flag set
* @CLUTTER_EVENT_FLAG_SYNTHETIC: Synthetic event
*
* Flags for the #ClutterEvent
*
* Since: 0.6
*/
typedef enum {
CLUTTER_EVENT_NONE = 0,
CLUTTER_EVENT_FLAG_SYNTHETIC = 1 << 0
} ClutterEventFlags;
/**
* ClutterEventType:
* @CLUTTER_NOTHING: Empty event
* @CLUTTER_KEY_PRESS: Key press event
* @CLUTTER_KEY_RELEASE: Key release event
* @CLUTTER_MOTION: Pointer motion event
* @CLUTTER_ENTER: Actor enter event
* @CLUTTER_LEAVE: Actor leave event
* @CLUTTER_BUTTON_PRESS: Pointer button press event
* @CLUTTER_BUTTON_RELEASE: Pointer button release event
* @CLUTTER_SCROLL: Pointer scroll event
* @CLUTTER_STAGE_STATE: Stage stage change event
* @CLUTTER_DESTROY_NOTIFY: Destroy notification event
* @CLUTTER_CLIENT_MESSAGE: Client message event
* @CLUTTER_DELETE: Stage delete event
*
* Types of events.
*
* Since: 0.4
*/
typedef enum
{
CLUTTER_NOTHING = 0,
CLUTTER_KEY_PRESS,
CLUTTER_KEY_RELEASE,
CLUTTER_MOTION,
CLUTTER_ENTER,
CLUTTER_LEAVE,
CLUTTER_BUTTON_PRESS,
CLUTTER_BUTTON_RELEASE,
CLUTTER_SCROLL,
CLUTTER_STAGE_STATE,
CLUTTER_DESTROY_NOTIFY,
CLUTTER_CLIENT_MESSAGE,
CLUTTER_DELETE
} ClutterEventType;
/**
* ClutterScrollDirection:
* @CLUTTER_SCROLL_UP: Scroll up
* @CLUTTER_SCROLL_DOWN: Scroll down
* @CLUTTER_SCROLL_LEFT: Scroll left
* @CLUTTER_SCROLL_RIGHT: Scroll right
*
* Direction of a pointer scroll event.
*
* Since: 0.4
*/
typedef enum
{
CLUTTER_SCROLL_UP,
CLUTTER_SCROLL_DOWN,
CLUTTER_SCROLL_LEFT,
CLUTTER_SCROLL_RIGHT
} ClutterScrollDirection;
/**
* ClutterStageState:
* @CLUTTER_STAGE_STATE_FULLSCREEN: Fullscreen mask
* @CLUTTER_STAGE_STATE_OFFSCREEN: Offscreen mask
* @CLUTTER_STAGE_STATE_ACTIVATED: Activated mask
*
* Stage state masks
*
* Since: 0.4
*/
typedef enum
{
CLUTTER_STAGE_STATE_FULLSCREEN = (1<<1),
CLUTTER_STAGE_STATE_OFFSCREEN = (1<<2),
CLUTTER_STAGE_STATE_ACTIVATED = (1<<3)
} ClutterStageState;
typedef struct _ClutterAnyEvent ClutterAnyEvent;
typedef struct _ClutterButtonEvent ClutterButtonEvent;
typedef struct _ClutterKeyEvent ClutterKeyEvent;
typedef struct _ClutterMotionEvent ClutterMotionEvent;
typedef struct _ClutterScrollEvent ClutterScrollEvent;
typedef struct _ClutterStageStateEvent ClutterStageStateEvent;
typedef struct _ClutterCrossingEvent ClutterCrossingEvent;
/**
* 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: reserved for future use
*
* 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;
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: reserved for future use
*
* 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;
};
/**
* 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: reserved for future use
*
* 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;
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: reserved for future use
*
* 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;
};
/**
* 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: reserved for future use
*
* 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;
};
/**
* ClutterStageStateEvent:
* @type: event type
* @time: event time
* @flags: event flags
* @stage: event source stage
* @source: event source actor (unused)
* @changed_mask: bitwise OR of the changed flags
* @new_state: bitwise OR of the current state flags
*
* Event signalling a change in the #ClutterStage state.
*
* Since: 0.2
*/
struct _ClutterStageStateEvent
{
ClutterEventType type;
guint32 time;
ClutterEventFlags flags;
ClutterStage *stage;
ClutterActor *source; /* XXX: should probably be the stage itself */
ClutterStageState changed_mask;
ClutterStageState new_state;
};
/**
* ClutterEvent:
*
* Generic event wrapper.
*
* Since: 0.2
*/
union _ClutterEvent
{
/*< private >*/
ClutterEventType type;
ClutterAnyEvent any;
ClutterButtonEvent button;
ClutterKeyEvent key;
ClutterMotionEvent motion;
ClutterScrollEvent scroll;
ClutterStageStateEvent stage_state;
ClutterCrossingEvent crossing;
};
GType clutter_event_get_type (void) G_GNUC_CONST;
gboolean clutter_events_pending (void);
ClutterEvent * clutter_event_get (void);
ClutterEvent * clutter_event_peek (void);
void clutter_event_put (const ClutterEvent *event);
ClutterEvent * clutter_event_new (ClutterEventType type);
ClutterEvent * clutter_event_copy (const ClutterEvent *event);
void clutter_event_free (ClutterEvent *event);
ClutterEventType clutter_event_type (const ClutterEvent *event);
ClutterEventFlags clutter_event_get_flags (const ClutterEvent *event);
guint32 clutter_event_get_time (const ClutterEvent *event);
ClutterModifierType clutter_event_get_state (const ClutterEvent *event);
gint clutter_event_get_device_id (const ClutterEvent *event);
ClutterInputDeviceType clutter_event_get_device_type (const ClutterEvent *event);
ClutterInputDevice * clutter_event_get_device (const ClutterEvent *event);
ClutterActor * clutter_event_get_source (const ClutterEvent *event);
ClutterStage * clutter_event_get_stage (const ClutterEvent *event);
void clutter_event_get_coords (const ClutterEvent *event,
gfloat *x,
gfloat *y);
guint clutter_event_get_key_symbol (const ClutterEvent *event);
guint16 clutter_event_get_key_code (const ClutterEvent *event);
guint32 clutter_event_get_key_unicode (const ClutterEvent *event);
guint32 clutter_event_get_button (const ClutterEvent *event);
guint clutter_event_get_click_count (const ClutterEvent *event);
ClutterActor * clutter_event_get_related (const ClutterEvent *event);
ClutterScrollDirection clutter_event_get_scroll_direction (const ClutterEvent *event);
guint32 clutter_keysym_to_unicode (guint keyval);
guint32 clutter_get_current_event_time (void);
G_CONST_RETURN ClutterEvent *clutter_get_current_event (void);
G_END_DECLS
#endif /* __CLUTTER_EVENT_H__ */
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