89c1c1e551
Those can be used to implement different scrolling behaviors. The fields have been added to ClutterScrollEvent itself. According to pahole, this makes the struct as big as ClutterButtonEvent and ClutterTouchEvent, so already at the limit of the ClutterEvent union. https://bugzilla.gnome.org/show_bug.cgi?id=757026
695 lines
24 KiB
C
695 lines
24 KiB
C
/*
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* Clutter.
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*
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* An OpenGL based 'interactive canvas' library.
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*
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* Authored By Matthew Allum <mallum@openedhand.com>
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*
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* Copyright (C) 2006 OpenedHand
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __CLUTTER_EVENT_H__
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#define __CLUTTER_EVENT_H__
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#if !defined(__CLUTTER_H_INSIDE__) && !defined(CLUTTER_COMPILATION)
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#error "Only <clutter/clutter.h> can be included directly."
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#endif
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#include <clutter/clutter-types.h>
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#include <clutter/clutter-input-device.h>
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G_BEGIN_DECLS
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#define CLUTTER_TYPE_EVENT (clutter_event_get_type ())
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#define CLUTTER_TYPE_EVENT_SEQUENCE (clutter_event_sequence_get_type ())
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/**
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* CLUTTER_PRIORITY_EVENTS:
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*
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* Priority for event handling.
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*
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* Since: 0.4
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*/
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#define CLUTTER_PRIORITY_EVENTS (G_PRIORITY_DEFAULT)
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/**
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* CLUTTER_CURRENT_TIME:
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*
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* Default value for "now".
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*
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* Since: 0.4
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*/
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#define CLUTTER_CURRENT_TIME (0L)
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/**
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* CLUTTER_EVENT_PROPAGATE:
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*
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* Continues the propagation of an event; this macro should be
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* used in event-related signals.
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*
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* Since: 1.10
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*/
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#define CLUTTER_EVENT_PROPAGATE (FALSE)
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/**
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* CLUTTER_EVENT_STOP:
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*
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* Stops the propagation of an event; this macro should be used
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* in event-related signals.
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*
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* Since: 1.10
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*/
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#define CLUTTER_EVENT_STOP (TRUE)
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/**
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* CLUTTER_BUTTON_PRIMARY:
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*
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* The primary button of a pointer device.
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*
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* This is typically the left mouse button in a right-handed
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* mouse configuration.
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*
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* Since: 1.10
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*/
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#define CLUTTER_BUTTON_PRIMARY (1)
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/**
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* CLUTTER_BUTTON_MIDDLE:
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*
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* The middle button of a pointer device.
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*
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* Since: 1.10
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*/
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#define CLUTTER_BUTTON_MIDDLE (2)
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/**
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* CLUTTER_BUTTON_SECONDARY:
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*
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* The secondary button of a pointer device.
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*
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* This is typically the right mouse button in a right-handed
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* mouse configuration.
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*
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* Since: 1.10
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*/
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#define CLUTTER_BUTTON_SECONDARY (3)
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typedef struct _ClutterAnyEvent ClutterAnyEvent;
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typedef struct _ClutterButtonEvent ClutterButtonEvent;
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typedef struct _ClutterKeyEvent ClutterKeyEvent;
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typedef struct _ClutterMotionEvent ClutterMotionEvent;
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typedef struct _ClutterScrollEvent ClutterScrollEvent;
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typedef struct _ClutterStageStateEvent ClutterStageStateEvent;
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typedef struct _ClutterCrossingEvent ClutterCrossingEvent;
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typedef struct _ClutterTouchEvent ClutterTouchEvent;
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typedef struct _ClutterTouchpadPinchEvent ClutterTouchpadPinchEvent;
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typedef struct _ClutterTouchpadSwipeEvent ClutterTouchpadSwipeEvent;
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/**
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* ClutterAnyEvent:
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* @type: event type
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* @time: event time
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* @flags: event flags
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* @source: event source actor
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*
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* Common members for a #ClutterEvent
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*
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* Since: 0.2
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*/
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struct _ClutterAnyEvent
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{
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ClutterEventType type;
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guint32 time;
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ClutterEventFlags flags;
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ClutterStage *stage;
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ClutterActor *source;
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};
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/**
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* ClutterKeyEvent:
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* @type: event type
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* @time: event time
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* @flags: event flags
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* @stage: event source stage
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* @source: event source actor
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* @modifier_state: key modifiers
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* @keyval: raw key value
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* @hardware_keycode: raw hardware key value
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* @unicode_value: Unicode representation
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* @device: the device that originated the event. If you want the physical
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* device the event originated from, use clutter_event_get_source_device()
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*
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* Key event
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*
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* Since: 0.2
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*/
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struct _ClutterKeyEvent
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{
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ClutterEventType type;
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guint32 time;
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ClutterEventFlags flags;
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ClutterStage *stage;
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ClutterActor *source;
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ClutterModifierType modifier_state;
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guint keyval;
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guint16 hardware_keycode;
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gunichar unicode_value;
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ClutterInputDevice *device;
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};
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/**
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* ClutterButtonEvent:
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* @type: event type
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* @time: event time
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* @flags: event flags
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* @stage: event source stage
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* @source: event source actor
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* @x: event X coordinate, relative to the stage
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* @y: event Y coordinate, relative to the stage
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* @modifier_state: button modifiers
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* @button: event button
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* @click_count: number of button presses within the default time
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* and radius
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* @axes: reserved for future use
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* @device: the device that originated the event. If you want the physical
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* device the event originated from, use clutter_event_get_source_device()
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*
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* Button event.
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*
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* The event coordinates are relative to the stage that received the
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* event, and can be transformed into actor-relative coordinates by
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* using clutter_actor_transform_stage_point().
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*
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* Since: 0.2
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*/
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struct _ClutterButtonEvent
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{
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ClutterEventType type;
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guint32 time;
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ClutterEventFlags flags;
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ClutterStage *stage;
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ClutterActor *source;
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gfloat x;
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gfloat y;
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ClutterModifierType modifier_state;
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guint32 button;
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guint click_count;
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gdouble *axes; /* Future use */
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ClutterInputDevice *device;
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};
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/**
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* ClutterCrossingEvent:
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* @type: event type
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* @time: event time
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* @flags: event flags
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* @stage: event source stage
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* @source: event source actor
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* @x: event X coordinate
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* @y: event Y coordinate
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* @related: actor related to the crossing
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* @device: the device that originated the event. If you want the physical
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* device the event originated from, use clutter_event_get_source_device()
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*
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* Event for the movement of the pointer across different actors
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*
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* Since: 0.2
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*/
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struct _ClutterCrossingEvent
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{
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ClutterEventType type;
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guint32 time;
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ClutterEventFlags flags;
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ClutterStage *stage;
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ClutterActor *source;
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gfloat x;
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gfloat y;
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ClutterInputDevice *device;
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ClutterActor *related;
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};
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/**
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* ClutterMotionEvent:
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* @type: event type
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* @time: event time
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* @flags: event flags
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* @stage: event source stage
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* @source: event source actor
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* @x: event X coordinate
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* @y: event Y coordinate
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* @modifier_state: button modifiers
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* @axes: reserved for future use
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* @device: the device that originated the event. If you want the physical
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* device the event originated from, use clutter_event_get_source_device()
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*
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* Event for the pointer motion
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*
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* Since: 0.2
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*/
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struct _ClutterMotionEvent
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{
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ClutterEventType type;
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guint32 time;
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ClutterEventFlags flags;
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ClutterStage *stage;
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ClutterActor *source;
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gfloat x;
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gfloat y;
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ClutterModifierType modifier_state;
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gdouble *axes; /* Future use */
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ClutterInputDevice *device;
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};
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/**
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* ClutterScrollEvent:
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* @type: event type
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* @time: event time
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* @flags: event flags
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* @stage: event source stage
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* @source: event source actor
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* @x: event X coordinate
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* @y: event Y coordinate
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* @direction: direction of the scrolling
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* @modifier_state: button modifiers
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* @axes: reserved for future use
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* @device: the device that originated the event. If you want the physical
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* device the event originated from, use clutter_event_get_source_device()
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* @scroll_source: the source of scroll events. This field is available since 1.26
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* @finish_flags: the axes that were stopped in this event. This field is available since 1.26
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*
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* Scroll wheel (or similar device) event
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*
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* Since: 0.2
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*/
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struct _ClutterScrollEvent
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{
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ClutterEventType type;
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guint32 time;
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ClutterEventFlags flags;
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ClutterStage *stage;
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ClutterActor *source;
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gfloat x;
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gfloat y;
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ClutterScrollDirection direction;
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ClutterModifierType modifier_state;
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gdouble *axes; /* future use */
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ClutterInputDevice *device;
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ClutterScrollSource scroll_source;
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ClutterScrollFinishFlags finish_flags;
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};
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/**
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* ClutterStageStateEvent:
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* @type: event type
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* @time: event time
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* @flags: event flags
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* @stage: event source stage
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* @source: event source actor (unused)
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* @changed_mask: bitwise OR of the changed flags
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* @new_state: bitwise OR of the current state flags
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*
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* Event signalling a change in the #ClutterStage state.
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*
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* Since: 0.2
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*/
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struct _ClutterStageStateEvent
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{
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ClutterEventType type;
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guint32 time;
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ClutterEventFlags flags;
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ClutterStage *stage;
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ClutterActor *source; /* XXX: should probably be the stage itself */
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ClutterStageState changed_mask;
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ClutterStageState new_state;
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};
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/**
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* ClutterTouchEvent:
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* @type: event type
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* @time: event time
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* @flags: event flags
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* @stage: event source stage
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* @source: event source actor (unused)
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* @x: the X coordinate of the pointer, relative to the stage
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* @y: the Y coordinate of the pointer, relative to the stage
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* @sequence: the event sequence that this event belongs to
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* @modifier_state: (type ClutterModifierType): a bit-mask representing the state
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* of modifier keys (e.g. Control, Shift, and Alt) and the pointer
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* buttons. See #ClutterModifierType
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* @axes: reserved
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* @device: the device that originated the event. If you want the physical
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* device the event originated from, use clutter_event_get_source_device()
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*
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* Used for touch events.
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*
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* The @type field will be one of %CLUTTER_TOUCH_BEGIN, %CLUTTER_TOUCH_END,
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* %CLUTTER_TOUCH_UPDATE, or %CLUTTER_TOUCH_CANCEL.
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*
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* Touch events are grouped into sequences; each touch sequence will begin
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* with a %CLUTTER_TOUCH_BEGIN event, progress with %CLUTTER_TOUCH_UPDATE
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* events, and end either with a %CLUTTER_TOUCH_END event or with a
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* %CLUTTER_TOUCH_CANCEL event.
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*
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* With multi-touch capable devices there can be multiple event sequence
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* running at the same time.
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*
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* Since: 1.10
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*/
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struct _ClutterTouchEvent
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{
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ClutterEventType type;
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guint32 time;
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ClutterEventFlags flags;
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ClutterStage *stage;
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ClutterActor *source;
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gfloat x;
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gfloat y;
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ClutterEventSequence *sequence;
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ClutterModifierType modifier_state;
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gdouble *axes; /* reserved */
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ClutterInputDevice *device;
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};
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/**
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* ClutterTouchpadPinchEvent:
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* @type: event type
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* @time: event time
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* @flags: event flags
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* @stage: event source stage
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* @source: event source actor (unused)
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* @phase: the current phase of the gesture
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* @x: the X coordinate of the pointer, relative to the stage
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* @y: the Y coordinate of the pointer, relative to the stage
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* @dx: movement delta of the pinch focal point in the X axis
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* @dy: movement delta of the pinch focal point in the Y axis
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* @angle_delta: angle delta in degrees, clockwise rotations are
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* represented by positive deltas
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* @scale: the current scale
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*
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* Used for touchpad pinch gesture events. The current state of the
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* gesture will be determined by the @phase field.
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*
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* Each event with phase %CLUTTER_TOUCHPAD_GESTURE_PHASE_BEGIN
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* will report a @scale of 1.0, all later phases in the gesture
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* report the current scale relative to the initial 1.0 value
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* (eg. 0.5 being half the size, 2.0 twice as big).
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*
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* Since: 1.24
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*/
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struct _ClutterTouchpadPinchEvent
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{
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ClutterEventType type;
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guint32 time;
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ClutterEventFlags flags;
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ClutterStage *stage;
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ClutterActor *source;
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ClutterTouchpadGesturePhase phase;
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gfloat x;
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gfloat y;
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gfloat dx;
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gfloat dy;
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gfloat angle_delta;
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gfloat scale;
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};
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/**
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* ClutterTouchpadSwipeEvent
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* @type: event type
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* @time: event time
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* @flags: event flags
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* @stage: event source stage
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* @source: event source actor (unused)
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* @phase: the current phase of the gesture
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* @n_fingers: the number of fingers triggering the swipe
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* @x: the X coordinate of the pointer, relative to the stage
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* @y: the Y coordinate of the pointer, relative to the stage
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* @dx: movement delta of the pinch focal point in the X axis
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* @dy: movement delta of the pinch focal point in the Y axis
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*
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* Used for touchpad swipe gesture events. The current state of the
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* gesture will be determined by the @phase field.
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*
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* Since: 1.24
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*/
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struct _ClutterTouchpadSwipeEvent
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{
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ClutterEventType type;
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guint32 time;
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ClutterEventFlags flags;
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ClutterStage *stage;
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ClutterActor *source;
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ClutterTouchpadGesturePhase phase;
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guint n_fingers;
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gfloat x;
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gfloat y;
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gfloat dx;
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gfloat dy;
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};
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/**
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* ClutterEvent:
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*
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* Generic event wrapper.
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*
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* Since: 0.2
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*/
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union _ClutterEvent
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{
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/*< private >*/
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ClutterEventType type;
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ClutterAnyEvent any;
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ClutterButtonEvent button;
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ClutterKeyEvent key;
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ClutterMotionEvent motion;
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ClutterScrollEvent scroll;
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ClutterStageStateEvent stage_state;
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ClutterCrossingEvent crossing;
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ClutterTouchEvent touch;
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ClutterTouchpadPinchEvent touchpad_pinch;
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ClutterTouchpadSwipeEvent touchpad_swipe;
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};
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/**
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* ClutterEventFilterFunc:
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* @event: the event that is going to be emitted
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* @user_data: the data pointer passed to clutter_event_add_filter()
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*
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* A function pointer type used by event filters that are added with
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* clutter_event_add_filter().
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*
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* Return value: %CLUTTER_EVENT_STOP to indicate that the event
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* has been handled or %CLUTTER_EVENT_PROPAGATE otherwise.
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* Returning %CLUTTER_EVENT_STOP skips any further filter
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* functions and prevents the signal emission for the event.
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*
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* Since: 1.18
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*/
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typedef gboolean (* ClutterEventFilterFunc) (const ClutterEvent *event,
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gpointer user_data);
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CLUTTER_AVAILABLE_IN_ALL
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GType clutter_event_get_type (void) G_GNUC_CONST;
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CLUTTER_AVAILABLE_IN_1_20
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GType clutter_event_sequence_get_type (void) G_GNUC_CONST;
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CLUTTER_AVAILABLE_IN_ALL
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gboolean clutter_events_pending (void);
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CLUTTER_AVAILABLE_IN_ALL
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ClutterEvent * clutter_event_get (void);
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CLUTTER_AVAILABLE_IN_ALL
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ClutterEvent * clutter_event_peek (void);
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CLUTTER_AVAILABLE_IN_ALL
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void clutter_event_put (const ClutterEvent *event);
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CLUTTER_AVAILABLE_IN_1_18
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guint clutter_event_add_filter (ClutterStage *stage,
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ClutterEventFilterFunc func,
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GDestroyNotify notify,
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gpointer user_data);
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CLUTTER_AVAILABLE_IN_1_18
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void clutter_event_remove_filter (guint id);
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CLUTTER_AVAILABLE_IN_ALL
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ClutterEvent * clutter_event_new (ClutterEventType type);
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CLUTTER_AVAILABLE_IN_ALL
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ClutterEvent * clutter_event_copy (const ClutterEvent *event);
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CLUTTER_AVAILABLE_IN_ALL
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void clutter_event_free (ClutterEvent *event);
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CLUTTER_AVAILABLE_IN_ALL
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ClutterEventType clutter_event_type (const ClutterEvent *event);
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CLUTTER_AVAILABLE_IN_1_8
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void clutter_event_set_flags (ClutterEvent *event,
|
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ClutterEventFlags flags);
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CLUTTER_AVAILABLE_IN_1_0
|
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ClutterEventFlags clutter_event_get_flags (const ClutterEvent *event);
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CLUTTER_AVAILABLE_IN_1_8
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void clutter_event_set_time (ClutterEvent *event,
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guint32 time_);
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CLUTTER_AVAILABLE_IN_ALL
|
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guint32 clutter_event_get_time (const ClutterEvent *event);
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CLUTTER_AVAILABLE_IN_1_8
|
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void clutter_event_set_state (ClutterEvent *event,
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ClutterModifierType state);
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CLUTTER_AVAILABLE_IN_ALL
|
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ClutterModifierType clutter_event_get_state (const ClutterEvent *event);
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CLUTTER_AVAILABLE_IN_1_16
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void clutter_event_get_state_full (const ClutterEvent *event,
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|
ClutterModifierType *button_state,
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|
ClutterModifierType *base_state,
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|
ClutterModifierType *latched_state,
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|
ClutterModifierType *locked_state,
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ClutterModifierType *effective_state);
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CLUTTER_AVAILABLE_IN_1_6
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|
void clutter_event_set_device (ClutterEvent *event,
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|
ClutterInputDevice *device);
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CLUTTER_AVAILABLE_IN_1_6
|
|
ClutterInputDevice * clutter_event_get_device (const ClutterEvent *event);
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CLUTTER_AVAILABLE_IN_1_6
|
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void clutter_event_set_source_device (ClutterEvent *event,
|
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ClutterInputDevice *device);
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CLUTTER_AVAILABLE_IN_1_6
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ClutterInputDevice * clutter_event_get_source_device (const ClutterEvent *event);
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CLUTTER_AVAILABLE_IN_1_8
|
|
void clutter_event_set_source (ClutterEvent *event,
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|
ClutterActor *actor);
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CLUTTER_AVAILABLE_IN_ALL
|
|
ClutterActor * clutter_event_get_source (const ClutterEvent *event);
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CLUTTER_AVAILABLE_IN_1_8
|
|
void clutter_event_set_stage (ClutterEvent *event,
|
|
ClutterStage *stage);
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CLUTTER_AVAILABLE_IN_ALL
|
|
ClutterStage * clutter_event_get_stage (const ClutterEvent *event);
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CLUTTER_AVAILABLE_IN_ALL
|
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gint clutter_event_get_device_id (const ClutterEvent *event);
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CLUTTER_AVAILABLE_IN_1_0
|
|
ClutterInputDeviceType clutter_event_get_device_type (const ClutterEvent *event);
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CLUTTER_AVAILABLE_IN_1_8
|
|
void clutter_event_set_coords (ClutterEvent *event,
|
|
gfloat x,
|
|
gfloat y);
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CLUTTER_AVAILABLE_IN_ALL
|
|
void clutter_event_get_coords (const ClutterEvent *event,
|
|
gfloat *x,
|
|
gfloat *y);
|
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CLUTTER_AVAILABLE_IN_1_12
|
|
void clutter_event_get_position (const ClutterEvent *event,
|
|
ClutterPoint *position);
|
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CLUTTER_AVAILABLE_IN_1_12
|
|
float clutter_event_get_distance (const ClutterEvent *source,
|
|
const ClutterEvent *target);
|
|
CLUTTER_AVAILABLE_IN_1_12
|
|
double clutter_event_get_angle (const ClutterEvent *source,
|
|
const ClutterEvent *target);
|
|
CLUTTER_AVAILABLE_IN_1_6
|
|
gdouble * clutter_event_get_axes (const ClutterEvent *event,
|
|
guint *n_axes);
|
|
CLUTTER_AVAILABLE_IN_1_12
|
|
gboolean clutter_event_has_shift_modifier (const ClutterEvent *event);
|
|
CLUTTER_AVAILABLE_IN_1_12
|
|
gboolean clutter_event_has_control_modifier (const ClutterEvent *event);
|
|
CLUTTER_AVAILABLE_IN_1_12
|
|
gboolean clutter_event_is_pointer_emulated (const ClutterEvent *event);
|
|
CLUTTER_AVAILABLE_IN_1_8
|
|
void clutter_event_set_key_symbol (ClutterEvent *event,
|
|
guint key_sym);
|
|
CLUTTER_AVAILABLE_IN_1_0
|
|
guint clutter_event_get_key_symbol (const ClutterEvent *event);
|
|
CLUTTER_AVAILABLE_IN_1_8
|
|
void clutter_event_set_key_code (ClutterEvent *event,
|
|
guint16 key_code);
|
|
CLUTTER_AVAILABLE_IN_1_0
|
|
guint16 clutter_event_get_key_code (const ClutterEvent *event);
|
|
CLUTTER_AVAILABLE_IN_1_8
|
|
void clutter_event_set_key_unicode (ClutterEvent *event,
|
|
gunichar key_unicode);
|
|
CLUTTER_AVAILABLE_IN_1_0
|
|
gunichar clutter_event_get_key_unicode (const ClutterEvent *event);
|
|
CLUTTER_AVAILABLE_IN_1_8
|
|
void clutter_event_set_button (ClutterEvent *event,
|
|
guint32 button);
|
|
CLUTTER_AVAILABLE_IN_1_0
|
|
guint32 clutter_event_get_button (const ClutterEvent *event);
|
|
CLUTTER_AVAILABLE_IN_1_0
|
|
guint clutter_event_get_click_count (const ClutterEvent *event);
|
|
CLUTTER_AVAILABLE_IN_1_8
|
|
void clutter_event_set_related (ClutterEvent *event,
|
|
ClutterActor *actor);
|
|
CLUTTER_AVAILABLE_IN_1_0
|
|
ClutterActor * clutter_event_get_related (const ClutterEvent *event);
|
|
CLUTTER_AVAILABLE_IN_1_8
|
|
void clutter_event_set_scroll_direction (ClutterEvent *event,
|
|
ClutterScrollDirection direction);
|
|
CLUTTER_AVAILABLE_IN_1_0
|
|
ClutterScrollDirection clutter_event_get_scroll_direction (const ClutterEvent *event);
|
|
CLUTTER_AVAILABLE_IN_1_10
|
|
void clutter_event_set_scroll_delta (ClutterEvent *event,
|
|
gdouble dx,
|
|
gdouble dy);
|
|
CLUTTER_AVAILABLE_IN_1_10
|
|
void clutter_event_get_scroll_delta (const ClutterEvent *event,
|
|
gdouble *dx,
|
|
gdouble *dy);
|
|
|
|
CLUTTER_AVAILABLE_IN_1_10
|
|
ClutterEventSequence * clutter_event_get_event_sequence (const ClutterEvent *event);
|
|
|
|
CLUTTER_AVAILABLE_IN_ALL
|
|
guint32 clutter_keysym_to_unicode (guint keyval);
|
|
CLUTTER_AVAILABLE_IN_1_10
|
|
guint clutter_unicode_to_keysym (guint32 wc);
|
|
|
|
CLUTTER_AVAILABLE_IN_1_0
|
|
guint32 clutter_get_current_event_time (void);
|
|
CLUTTER_AVAILABLE_IN_1_2
|
|
const ClutterEvent * clutter_get_current_event (void);
|
|
|
|
CLUTTER_AVAILABLE_IN_1_24
|
|
guint clutter_event_get_gesture_swipe_finger_count (const ClutterEvent *event);
|
|
|
|
CLUTTER_AVAILABLE_IN_1_24
|
|
gdouble clutter_event_get_gesture_pinch_angle_delta (const ClutterEvent *event);
|
|
|
|
CLUTTER_AVAILABLE_IN_1_24
|
|
gdouble clutter_event_get_gesture_pinch_scale (const ClutterEvent *event);
|
|
|
|
CLUTTER_AVAILABLE_IN_1_24
|
|
ClutterTouchpadGesturePhase clutter_event_get_gesture_phase (const ClutterEvent *event);
|
|
|
|
CLUTTER_AVAILABLE_IN_1_24
|
|
void clutter_event_get_gesture_motion_delta (const ClutterEvent *event,
|
|
gdouble *dx,
|
|
gdouble *dy);
|
|
|
|
ClutterScrollSource clutter_event_get_scroll_source (const ClutterEvent *event);
|
|
ClutterScrollFinishFlags clutter_event_get_scroll_finish_flags (const ClutterEvent *event);
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* __CLUTTER_EVENT_H__ */
|