82d1e5a6ee
Clutter should just require that the windowing system used by a backend adds a device to the stage when the device enters, and removes it from the stage when the device leaves; with this information, we can synthesize every crossing event and update the device state without other intervention from the backend-specific code. The generation of additional crossing events for actors that are covering the stage at the coordinates of the crossing event should be delegated to the event processing code. The x11 and win32 backends need to be modified to relay the enter and leave events from the windowing system.
170 lines
6.9 KiB
C
170 lines
6.9 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) 2010 Intel Corporation.
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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:
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* Emmanuele Bassi <ebassi@linux.intel.com>
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*/
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#ifndef __CLUTTER_DEVICE_MANAGER_PRIVATE_H__
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#define __CLUTTER_DEVICE_MANAGER_PRIVATE_H__
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#include <clutter/clutter-backend.h>
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#include <clutter/clutter-device-manager.h>
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#include <clutter/clutter-event.h>
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G_BEGIN_DECLS
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typedef struct _ClutterAxisInfo
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{
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ClutterInputAxis axis;
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gdouble min_axis;
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gdouble max_axis;
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gdouble min_value;
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gdouble max_value;
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gdouble resolution;
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} ClutterAxisInfo;
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typedef struct _ClutterKeyInfo
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{
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guint keyval;
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ClutterModifierType modifiers;
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} ClutterKeyInfo;
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struct _ClutterInputDevice
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{
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GObject parent_instance;
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gint id;
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ClutterInputDeviceType device_type;
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ClutterInputMode device_mode;
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gchar *device_name;
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ClutterDeviceManager *device_manager;
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ClutterBackend *backend;
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/* the associated device */
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ClutterInputDevice *associated;
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GList *slaves;
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/* the actor underneath the pointer */
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ClutterActor *cursor_actor;
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/* the actor that has a grab in place for the device */
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ClutterActor *pointer_grab_actor;
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/* the current click count */
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gint click_count;
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/* the stage the device is on */
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ClutterStage *stage;
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/* the current state */
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gint current_x;
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gint current_y;
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guint32 current_time;
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gint current_button_number;
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ClutterModifierType current_state;
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/* the previous state, used for click count generation */
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gint previous_x;
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gint previous_y;
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guint32 previous_time;
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gint previous_button_number;
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ClutterModifierType previous_state;
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GArray *axes;
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guint n_keys;
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GArray *keys;
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guint has_cursor : 1;
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guint is_enabled : 1;
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};
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struct _ClutterInputDeviceClass
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{
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GObjectClass parent_class;
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void (* select_stage_events) (ClutterInputDevice *device,
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ClutterStage *stage,
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gint event_mask);
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};
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/* device manager */
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void _clutter_device_manager_add_device (ClutterDeviceManager *device_manager,
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ClutterInputDevice *device);
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void _clutter_device_manager_remove_device (ClutterDeviceManager *device_manager,
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ClutterInputDevice *device);
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void _clutter_device_manager_update_devices (ClutterDeviceManager *device_manager);
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void _clutter_device_manager_select_stage_events (ClutterDeviceManager *device_manager,
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ClutterStage *stage,
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gint event_mask);
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ClutterBackend *_clutter_device_manager_get_backend (ClutterDeviceManager *device_manager);
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/* input device */
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void _clutter_input_device_set_coords (ClutterInputDevice *device,
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gint x,
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gint y);
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void _clutter_input_device_set_state (ClutterInputDevice *device,
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ClutterModifierType state);
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void _clutter_input_device_set_time (ClutterInputDevice *device,
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guint32 time_);
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void _clutter_input_device_set_stage (ClutterInputDevice *device,
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ClutterStage *stage);
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void _clutter_input_device_set_actor (ClutterInputDevice *device,
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ClutterActor *actor,
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gboolean emit_crossing);
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ClutterActor * _clutter_input_device_update (ClutterInputDevice *device,
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gboolean emit_crossing);
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void _clutter_input_device_set_n_keys (ClutterInputDevice *device,
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guint n_keys);
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guint _clutter_input_device_add_axis (ClutterInputDevice *device,
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ClutterInputAxis axis,
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gdouble min_value,
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gdouble max_value,
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gdouble resolution);
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void _clutter_input_device_reset_axes (ClutterInputDevice *device);
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void _clutter_input_device_set_associated_device (ClutterInputDevice *device,
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ClutterInputDevice *associated);
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void _clutter_input_device_add_slave (ClutterInputDevice *master,
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ClutterInputDevice *slave);
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void _clutter_input_device_remove_slave (ClutterInputDevice *master,
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ClutterInputDevice *slave);
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void _clutter_input_device_select_stage_events (ClutterInputDevice *device,
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ClutterStage *stage,
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gint event_flags);
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gboolean _clutter_input_device_translate_axis (ClutterInputDevice *device,
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guint index_,
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gdouble value,
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gdouble *axis_value);
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G_END_DECLS
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#endif /* __CLUTTER_DEVICE_MANAGER_PRIVATE_H__ */
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