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mutter/clutter/clutter-timeline.h
Emmanuele Bassi 388f818f41 timeline: Add more state accessors 
It should be possible to ask a timeline what is its duration, taking
into account eventual repeats, and which repeat is the one currently
in progress.

These two functions allow writing animations that depend on the current
state of another timeline.
2012-03-15 17:01:13 +00:00

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/*
* Clutter.
*
* An OpenGL based 'interactive canvas' library.
*
* Authored By Matthew Allum <mallum@openedhand.com>
*
* Copyright (C) 2006 OpenedHand
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#if !defined(__CLUTTER_H_INSIDE__) && !defined(CLUTTER_COMPILATION)
#error "Only <clutter/clutter.h> can be included directly."
#endif
#ifndef __CLUTTER_TIMELINE_H__
#define __CLUTTER_TIMELINE_H__
#include <clutter/clutter-types.h>
G_BEGIN_DECLS
#define CLUTTER_TYPE_TIMELINE (clutter_timeline_get_type ())
#define CLUTTER_TIMELINE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), CLUTTER_TYPE_TIMELINE, ClutterTimeline))
#define CLUTTER_TIMELINE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), CLUTTER_TYPE_TIMELINE, ClutterTimelineClass))
#define CLUTTER_IS_TIMELINE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), CLUTTER_TYPE_TIMELINE))
#define CLUTTER_IS_TIMELINE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), CLUTTER_TYPE_TIMELINE))
#define CLUTTER_TIMELINE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), CLUTTER_TYPE_TIMELINE, ClutterTimelineClass))
typedef struct _ClutterTimelineClass ClutterTimelineClass;
typedef struct _ClutterTimelinePrivate ClutterTimelinePrivate;
/**
* ClutterTimelineProgressFunc:
* @timeline: a #ClutterTimeline
* @elapsed: the elapsed time, in milliseconds
* @total: the total duration of the timeline, in milliseconds,
* @user_data: data passed to the function
*
* A function for defining a custom progress.
*
* Return value: the progress, as a floating point value between -1.0 and 2.0.
*
* Since: 1.10
*/
typedef gdouble (* ClutterTimelineProgressFunc) (ClutterTimeline *timeline,
gdouble elapsed,
gdouble total,
gpointer user_data);
/**
* ClutterTimeline:
*
* The #ClutterTimeline structure contains only private data
* and should be accessed using the provided API
*
* Since: 0.2
*/
struct _ClutterTimeline
{
/*< private >*/
GObject parent_instance;
ClutterTimelinePrivate *priv;
};
/**
* ClutterTimelineClass:
* @started: handler for the #ClutterTimeline::started signal
* @completed: handler for the #ClutterTimeline::completed signal
* @paused: handler for the #ClutterTimeline::paused signal
* @new_frame: handler for the #ClutterTimeline::new-frame signal
* @marker_reached: handler for the #ClutterTimeline::marker-reached signal
*
* The #ClutterTimelineClass structure contains only private data
*
* Since: 0.2
*/
struct _ClutterTimelineClass
{
/*< private >*/
GObjectClass parent_class;
/*< public >*/
void (*started) (ClutterTimeline *timeline);
void (*completed) (ClutterTimeline *timeline);
void (*paused) (ClutterTimeline *timeline);
void (*new_frame) (ClutterTimeline *timeline,
gint msecs);
void (*marker_reached) (ClutterTimeline *timeline,
const gchar *marker_name,
gint msecs);
/*< private >*/
void (*_clutter_timeline_1) (void);
void (*_clutter_timeline_2) (void);
void (*_clutter_timeline_3) (void);
void (*_clutter_timeline_4) (void);
void (*_clutter_timeline_5) (void);
};
GType clutter_timeline_get_type (void) G_GNUC_CONST;
ClutterTimeline * clutter_timeline_new (guint msecs);
guint clutter_timeline_get_duration (ClutterTimeline *timeline);
void clutter_timeline_set_duration (ClutterTimeline *timeline,
guint msecs);
ClutterTimelineDirection clutter_timeline_get_direction (ClutterTimeline *timeline);
void clutter_timeline_set_direction (ClutterTimeline *timeline,
ClutterTimelineDirection direction);
void clutter_timeline_start (ClutterTimeline *timeline);
void clutter_timeline_pause (ClutterTimeline *timeline);
void clutter_timeline_stop (ClutterTimeline *timeline);
void clutter_timeline_set_auto_reverse (ClutterTimeline *timeline,
gboolean reverse);
gboolean clutter_timeline_get_auto_reverse (ClutterTimeline *timeline);
CLUTTER_AVAILABLE_IN_1_10
void clutter_timeline_set_repeat_count (ClutterTimeline *timeline,
gint count);
CLUTTER_AVAILABLE_IN_1_10
gint clutter_timeline_get_repeat_count (ClutterTimeline *timeline);
void clutter_timeline_rewind (ClutterTimeline *timeline);
void clutter_timeline_skip (ClutterTimeline *timeline,
guint msecs);
void clutter_timeline_advance (ClutterTimeline *timeline,
guint msecs);
guint clutter_timeline_get_elapsed_time (ClutterTimeline *timeline);
gdouble clutter_timeline_get_progress (ClutterTimeline *timeline);
gboolean clutter_timeline_is_playing (ClutterTimeline *timeline);
void clutter_timeline_set_delay (ClutterTimeline *timeline,
guint msecs);
guint clutter_timeline_get_delay (ClutterTimeline *timeline);
guint clutter_timeline_get_delta (ClutterTimeline *timeline);
void clutter_timeline_add_marker_at_time (ClutterTimeline *timeline,
const gchar *marker_name,
guint msecs);
void clutter_timeline_remove_marker (ClutterTimeline *timeline,
const gchar *marker_name);
gchar ** clutter_timeline_list_markers (ClutterTimeline *timeline,
gint msecs,
gsize *n_markers) G_GNUC_MALLOC;
gboolean clutter_timeline_has_marker (ClutterTimeline *timeline,
const gchar *marker_name);
void clutter_timeline_advance_to_marker (ClutterTimeline *timeline,
const gchar *marker_name);
CLUTTER_AVAILABLE_IN_1_10
void clutter_timeline_set_progress_func (ClutterTimeline *timeline,
ClutterTimelineProgressFunc func,
gpointer data,
GDestroyNotify notify);
CLUTTER_AVAILABLE_IN_1_10
void clutter_timeline_set_progress_mode (ClutterTimeline *timeline,
ClutterAnimationMode mode);
CLUTTER_AVAILABLE_IN_1_10
ClutterAnimationMode clutter_timeline_get_progress_mode (ClutterTimeline *timeline);
CLUTTER_AVAILABLE_IN_1_10
gint64 clutter_timeline_get_duration_hint (ClutterTimeline *timeline);
CLUTTER_AVAILABLE_IN_1_10
gint clutter_timeline_get_current_repeat (ClutterTimeline *timeline);
G_END_DECLS
#endif /* _CLUTTER_TIMELINE_H__ */
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