97feb06a6f
Being able to easily set the number of repeats has been a request for the animation framework for some time now. The usual way to implement this is: connect to the ::completed signal, use a static counter, and stop the timeline when the counter hits a specific spot. In the same light as the :auto-reverse property, we can make it easier to implement this common functionality by adding a :repeat-count property that, when set, limits the amount of loops that a Timeline can perform before stopping itself. In fact, we can implement the :loop property in terms of the :repeat-count property just by using a sentinel value mapping to "infinity", and map loop=FALSE to repeat-count=0, and loop=TRUE to repeat-count=-1.
154 lines
8.2 KiB
C
154 lines
8.2 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, see <http://www.gnu.org/licenses/>.
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*/
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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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#ifndef __CLUTTER_TIMELINE_H__
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#define __CLUTTER_TIMELINE_H__
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#include <clutter/clutter-types.h>
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G_BEGIN_DECLS
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#define CLUTTER_TYPE_TIMELINE (clutter_timeline_get_type ())
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#define CLUTTER_TIMELINE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), CLUTTER_TYPE_TIMELINE, ClutterTimeline))
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#define CLUTTER_TIMELINE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), CLUTTER_TYPE_TIMELINE, ClutterTimelineClass))
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#define CLUTTER_IS_TIMELINE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), CLUTTER_TYPE_TIMELINE))
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#define CLUTTER_IS_TIMELINE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), CLUTTER_TYPE_TIMELINE))
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#define CLUTTER_TIMELINE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), CLUTTER_TYPE_TIMELINE, ClutterTimelineClass))
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typedef struct _ClutterTimelineClass ClutterTimelineClass;
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typedef struct _ClutterTimelinePrivate ClutterTimelinePrivate;
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/**
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* ClutterTimeline:
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*
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* The #ClutterTimeline structure contains only private data
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* and should be accessed using the provided API
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*
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* Since: 0.2
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*/
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struct _ClutterTimeline
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{
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/*< private >*/
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GObject parent;
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ClutterTimelinePrivate *priv;
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};
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/**
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* ClutterTimelineClass:
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* @started: handler for the #ClutterTimeline::started signal
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* @completed: handler for the #ClutterTimeline::completed signal
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* @paused: handler for the #ClutterTimeline::paused signal
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* @new_frame: handler for the #ClutterTimeline::new-frame signal
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* @marker_reached: handler for the #ClutterTimeline::marker-reached signal
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*
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* The #ClutterTimelineClass structure contains only private data
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*
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* Since: 0.2
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*/
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struct _ClutterTimelineClass
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{
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/*< private >*/
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GObjectClass parent_class;
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/*< public >*/
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void (*started) (ClutterTimeline *timeline);
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void (*completed) (ClutterTimeline *timeline);
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void (*paused) (ClutterTimeline *timeline);
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void (*new_frame) (ClutterTimeline *timeline,
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gint msecs);
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void (*marker_reached) (ClutterTimeline *timeline,
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const gchar *marker_name,
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gint msecs);
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/*< private >*/
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void (*_clutter_timeline_1) (void);
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void (*_clutter_timeline_2) (void);
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void (*_clutter_timeline_3) (void);
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void (*_clutter_timeline_4) (void);
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void (*_clutter_timeline_5) (void);
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};
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GType clutter_timeline_get_type (void) G_GNUC_CONST;
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ClutterTimeline * clutter_timeline_new (guint msecs);
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guint clutter_timeline_get_duration (ClutterTimeline *timeline);
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void clutter_timeline_set_duration (ClutterTimeline *timeline,
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guint msecs);
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ClutterTimelineDirection clutter_timeline_get_direction (ClutterTimeline *timeline);
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void clutter_timeline_set_direction (ClutterTimeline *timeline,
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ClutterTimelineDirection direction);
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void clutter_timeline_start (ClutterTimeline *timeline);
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void clutter_timeline_pause (ClutterTimeline *timeline);
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void clutter_timeline_stop (ClutterTimeline *timeline);
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void clutter_timeline_set_auto_reverse (ClutterTimeline *timeline,
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gboolean reverse);
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gboolean clutter_timeline_get_auto_reverse (ClutterTimeline *timeline);
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void clutter_timeline_set_repeat_count (ClutterTimeline *timeline,
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gint count);
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gint clutter_timeline_get_repeat_count (ClutterTimeline *timeline);
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void clutter_timeline_rewind (ClutterTimeline *timeline);
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void clutter_timeline_skip (ClutterTimeline *timeline,
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guint msecs);
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void clutter_timeline_advance (ClutterTimeline *timeline,
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guint msecs);
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guint clutter_timeline_get_elapsed_time (ClutterTimeline *timeline);
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gdouble clutter_timeline_get_progress (ClutterTimeline *timeline);
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gboolean clutter_timeline_is_playing (ClutterTimeline *timeline);
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void clutter_timeline_set_delay (ClutterTimeline *timeline,
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guint msecs);
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guint clutter_timeline_get_delay (ClutterTimeline *timeline);
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guint clutter_timeline_get_delta (ClutterTimeline *timeline);
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void clutter_timeline_add_marker_at_time (ClutterTimeline *timeline,
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const gchar *marker_name,
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guint msecs);
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void clutter_timeline_remove_marker (ClutterTimeline *timeline,
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const gchar *marker_name);
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gchar ** clutter_timeline_list_markers (ClutterTimeline *timeline,
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gint msecs,
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gsize *n_markers) G_GNUC_MALLOC;
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gboolean clutter_timeline_has_marker (ClutterTimeline *timeline,
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const gchar *marker_name);
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void clutter_timeline_advance_to_marker (ClutterTimeline *timeline,
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const gchar *marker_name);
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CLUTTER_DEPRECATED_FOR(clutter_timeline_new)
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ClutterTimeline * clutter_timeline_clone (ClutterTimeline *timeline);
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CLUTTER_DEPRECATED_FOR(clutter_timeline_set_repeat_count)
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void clutter_timeline_set_loop (ClutterTimeline *timeline,
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gboolean loop);
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CLUTTER_DEPRECATED_FOR(clutter_timeline_get_repeat_count)
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gboolean clutter_timeline_get_loop (ClutterTimeline *timeline);
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G_END_DECLS
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#endif /* _CLUTTER_TIMELINE_H__ */
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