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d893adb290
Clutter discards any motion event if next event happens to also be a motion event. This is problematic when the motion event carries relative motion deltas, since the information about them is completely lost. Until we have moved away made the stage stop discarding motion events, lets work around the issue by compressing them, effectively adding multiple relative motion deltas together, would one be discarded. https://bugzilla.gnome.org/show_bug.cgi?id=771049
120 lines
4.9 KiB
C
120 lines
4.9 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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* Copyright (C) 2009 Intel Corp.
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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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* Author: Emmanuele Bassi <ebassi@linux.intel.com>
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*/
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#ifndef __CLUTTER_DEVICE_MANAGER_H__
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#define __CLUTTER_DEVICE_MANAGER_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-input-device.h>
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#include <clutter/clutter-stage.h>
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G_BEGIN_DECLS
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#define CLUTTER_TYPE_DEVICE_MANAGER (clutter_device_manager_get_type ())
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#define CLUTTER_DEVICE_MANAGER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), CLUTTER_TYPE_DEVICE_MANAGER, ClutterDeviceManager))
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#define CLUTTER_IS_DEVICE_MANAGER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), CLUTTER_TYPE_DEVICE_MANAGER))
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#define CLUTTER_DEVICE_MANAGER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), CLUTTER_TYPE_DEVICE_MANAGER, ClutterDeviceManagerClass))
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#define CLUTTER_IS_DEVICE_MANAGER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), CLUTTER_TYPE_DEVICE_MANAGER))
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#define CLUTTER_DEVICE_MANAGER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), CLUTTER_TYPE_DEVICE_MANAGER, ClutterDeviceManagerClass))
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typedef struct _ClutterDeviceManager ClutterDeviceManager;
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typedef struct _ClutterDeviceManagerPrivate ClutterDeviceManagerPrivate;
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typedef struct _ClutterDeviceManagerClass ClutterDeviceManagerClass;
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/**
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* ClutterDeviceManager:
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*
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* The #ClutterDeviceManager structure contains only private data
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*
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* Since: 1.2
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*/
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struct _ClutterDeviceManager
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{
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/*< private >*/
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GObject parent_instance;
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ClutterDeviceManagerPrivate *priv;
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};
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/**
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* ClutterDeviceManagerClass:
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*
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* The #ClutterDeviceManagerClass structure contains only private data
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*
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* Since: 1.2
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*/
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struct _ClutterDeviceManagerClass
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{
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/*< private >*/
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GObjectClass parent_class;
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const GSList * (* get_devices) (ClutterDeviceManager *device_manager);
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ClutterInputDevice *(* get_core_device) (ClutterDeviceManager *device_manager,
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ClutterInputDeviceType device_type);
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ClutterInputDevice *(* get_device) (ClutterDeviceManager *device_manager,
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gint device_id);
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void (* add_device) (ClutterDeviceManager *manager,
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ClutterInputDevice *device);
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void (* remove_device) (ClutterDeviceManager *manager,
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ClutterInputDevice *device);
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void (* select_stage_events) (ClutterDeviceManager *manager,
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ClutterStage *stage);
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ClutterVirtualInputDevice *(* create_virtual_device) (ClutterDeviceManager *manager,
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ClutterInputDeviceType device_type);
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void (* compress_motion) (ClutterDeviceManager *device_manger,
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ClutterEvent *event,
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const ClutterEvent *to_discard);
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/* padding */
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gpointer _padding[6];
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};
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CLUTTER_AVAILABLE_IN_1_2
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GType clutter_device_manager_get_type (void) G_GNUC_CONST;
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CLUTTER_AVAILABLE_IN_1_2
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ClutterDeviceManager *clutter_device_manager_get_default (void);
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CLUTTER_AVAILABLE_IN_1_2
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GSList * clutter_device_manager_list_devices (ClutterDeviceManager *device_manager);
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CLUTTER_AVAILABLE_IN_1_2
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const GSList * clutter_device_manager_peek_devices (ClutterDeviceManager *device_manager);
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CLUTTER_AVAILABLE_IN_1_2
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ClutterInputDevice * clutter_device_manager_get_device (ClutterDeviceManager *device_manager,
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gint device_id);
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CLUTTER_AVAILABLE_IN_1_2
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ClutterInputDevice * clutter_device_manager_get_core_device (ClutterDeviceManager *device_manager,
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ClutterInputDeviceType device_type);
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CLUTTER_AVAILABLE_IN_ALL
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ClutterVirtualInputDevice *clutter_device_manager_create_virtual_device (ClutterDeviceManager *device_manager,
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ClutterInputDeviceType device_type);
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G_END_DECLS
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#endif /* __CLUTTER_DEVICE_MANAGER_H__ */
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