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cd39202f23
Add functions to retrieve some of the properties of the screen used by the backend, like its dimensions (also physical, in millimeters); the number of screens. Also add setters and getters for the double click time (in milliseconds) and distance.
115 lines
4.2 KiB
C
115 lines
4.2 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, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __CLUTTER_BACKEND_H__
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#define __CLUTTER_BACKEND_H__
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#include <glib-object.h>
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#include <clutter/clutter-actor.h>
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#include <clutter/clutter-event.h>
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G_BEGIN_DECLS
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#define CLUTTER_TYPE_BACKEND (clutter_backend_get_type ())
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#define CLUTTER_BACKEND(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), CLUTTER_TYPE_BACKEND, ClutterBackend))
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#define CLUTTER_IS_BACKEND(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), CLUTTER_TYPE_BACKEND))
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#define CLUTTER_BACKEND_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), CLUTTER_TYPE_BACKEND, ClutterBackendClass))
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#define CLUTTER_IS_BACKEND_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), CLUTTER_TYPE_BACKEND))
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#define CLUTTER_BACKEND_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), CLUTTER_TYPE_BACKEND, ClutterBackendClass))
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typedef struct _ClutterBackend ClutterBackend;
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typedef struct _ClutterBackendClass ClutterBackendClass;
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struct _ClutterBackend
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{
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GObject parent_instance;
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/*< private >*/
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gint mm_width;
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gint mm_height;
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gint res_width;
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gint res_height;
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gint screen_n;
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/* events queue: every backend must implement one */
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GQueue *events_queue;
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gpointer queue_head;
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/* settings */
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guint double_click_time;
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guint double_click_distance;
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/* multiple button click detection */
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guint32 button_click_time[2];
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guint32 button_number[2];
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gint button_x[2];
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gint button_y[2];
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};
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struct _ClutterBackendClass
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{
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GObjectClass parent_class;
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/* vfuncs */
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gboolean (* pre_parse) (ClutterBackend *backend,
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GError **error);
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gboolean (* post_parse) (ClutterBackend *backend,
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GError **error);
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gboolean (* init_stage) (ClutterBackend *backend,
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GError **error);
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void (* init_events) (ClutterBackend *backend);
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void (* init_features) (ClutterBackend *backend);
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ClutterActor *(* get_stage) (ClutterBackend *backend);
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void (* add_options) (ClutterBackend *backend,
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GOptionGroup *group);
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};
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GType clutter_backend_get_type (void) G_GNUC_CONST;
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ClutterBackend *clutter_get_default_backend (void);
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ClutterEvent *clutter_backend_get_event (ClutterBackend *backend);
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ClutterEvent *clutter_backend_peek_event (ClutterBackend *backend);
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void clutter_backend_put_event (ClutterBackend *backend,
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ClutterEvent *event);
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gint clutter_backend_get_width (ClutterBackend *backend);
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gint clutter_backend_get_height (ClutterBackend *backend);
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gint clutter_backend_get_width_mm (ClutterBackend *backend);
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gint clutter_backend_get_height_mm (ClutterBackend *backend);
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gint clutter_backend_get_screen_number (ClutterBackend *backend);
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void clutter_backend_set_double_click_time (ClutterBackend *backend,
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guint msec);
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guint clutter_backend_get_double_click_time (ClutterBackend *backend);
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void clutter_backend_set_double_click_distance (ClutterBackend *backend,
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guint distance);
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guint clutter_backend_get_double_click_distance (ClutterBackend *backend);
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G_END_DECLS
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#endif /* __CLUTTER_BACKEND_H__ */
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