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mutter/clutter/clutter-timeline.h
Emmanuele Bassi 12c75e9737 timeline: Add cubic-bezier() progress functions 
Another progress function from the CSS3 Transitions specification, using
a parametrices cubic bezier curve between (0, 0) and (1, 1) with two
control points.

(sadly, no ASCII art can approximate a cubic bezier, so no graph)

The cubic-bezier() progress function comes with a bunch of preset easing
modes: ease, ease-in, ease-out, and ease-in-out, that we can map to
enumeration values.
2012-07-19 22:13:24 -04:00

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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: class handler for the #ClutterTimeline::started signal
* @completed: class handler for the #ClutterTimeline::completed signal
* @paused: class handler for the #ClutterTimeline::paused signal
* @new_frame: class handler for the #ClutterTimeline::new-frame signal
* @marker_reached: class handler for the #ClutterTimeline::marker-reached signal
* @stopped: class handler for the #ClutterTimeline::stopped 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);
void (*stopped) (ClutterTimeline *timeline,
gboolean is_finished);
/*< private >*/
void (*_clutter_timeline_1) (void);
void (*_clutter_timeline_2) (void);
void (*_clutter_timeline_3) (void);
void (*_clutter_timeline_4) (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_12
void clutter_timeline_set_step_progress (ClutterTimeline *timeline,
gint n_steps,
ClutterStepMode step_mode);
CLUTTER_AVAILABLE_IN_1_12
gboolean clutter_timeline_get_step_progress (ClutterTimeline *timeline,
gint *n_steps,
ClutterStepMode *step_mode);
CLUTTER_AVAILABLE_IN_1_12
void clutter_timeline_set_cubic_bezier_progress (ClutterTimeline *timeline,
const ClutterPoint *c_1,
const ClutterPoint *c_2);
CLUTTER_AVAILABLE_IN_1_12
gboolean clutter_timeline_get_cubic_bezier_progress (ClutterTimeline *timeline,
ClutterPoint *c_1,
ClutterPoint *c_2);
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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