ClutterTimeline

ClutterTimeline — A class for based events

Synopsis




ClutterTimeline*    clutter_timeline_new                (guint n_frames,
                                                         guint fps);
ClutterTimeline*    clutter_timeline_clone              (ClutterTimeline *timeline);
void                clutter_timeline_set_speed          (ClutterTimeline *timeline,
                                                         guint fps);
guint               clutter_timeline_get_speed          (ClutterTimeline *timeline);
void                clutter_timeline_start              (ClutterTimeline *timeline);
void                clutter_timeline_pause              (ClutterTimeline *timeline);
void                clutter_timeline_stop               (ClutterTimeline *timeline);
void                clutter_timeline_set_loop           (ClutterTimeline *timeline,
                                                         gboolean loop);
gboolean            clutter_timeline_get_loop           (ClutterTimeline *timeline);
void                clutter_timeline_rewind             (ClutterTimeline *timeline);
void                clutter_timeline_skip               (ClutterTimeline *timeline,
                                                         guint n_frames);
void                clutter_timeline_advance            (ClutterTimeline *timeline,
                                                         guint frame_num);
gint                clutter_timeline_get_current_frame  (ClutterTimeline *timeline);
void                clutter_timeline_set_n_frames       (ClutterTimeline *timeline,
                                                         guint n_frames);
guint               clutter_timeline_get_n_frames       (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);


Description

ClutterTimeline is a base class for managing time based events such as animations.

Every timeline shares the same ClutterTimeoutPool to decrease the possibility of starvating the main loop when using many timelines at the same time; this might cause problems if you are also using a library making heavy use of threads with no GLib main loop integration. In that case you might disable the common timeline pool by setting the CLUTTER_TIMELINE=no-pool environment variable prior to launching your application.

Details

clutter_timeline_new ()

ClutterTimeline*    clutter_timeline_new                (guint n_frames,
                                                         guint fps);

Create a new ClutterTimeline instance.

n_frames : the number of frames
fps : the number of frames per second
Returns : a new ClutterTimeline

clutter_timeline_clone ()

ClutterTimeline*    clutter_timeline_clone              (ClutterTimeline *timeline);

Create a new ClutterTimeline instance which has property values matching that of supplied timeline. The cloned timeline will not be started and will not be positioned to the current position of timeline: you will have to start it with clutter_timeline_start().

timeline : ClutterTimeline to duplicate.
Returns : a new ClutterTimeline, cloned from timeline Since 0.4

clutter_timeline_set_speed ()

void                clutter_timeline_set_speed          (ClutterTimeline *timeline,
                                                         guint fps);

Set the speed in frames per second of the timeline.

timeline : A ClutterTimeline
fps : New speed of timeline as frames per second

clutter_timeline_get_speed ()

guint               clutter_timeline_get_speed          (ClutterTimeline *timeline);

Gets the frames per second played by timeline

timeline : a ClutterTimeline
Returns : the number of frames per second.

clutter_timeline_start ()

void                clutter_timeline_start              (ClutterTimeline *timeline);

Starts the ClutterTimeline playing.

timeline : A ClutterTimeline

clutter_timeline_pause ()

void                clutter_timeline_pause              (ClutterTimeline *timeline);

Pauses the ClutterTimeline on current frame

timeline : A ClutterTimeline

clutter_timeline_stop ()

void                clutter_timeline_stop               (ClutterTimeline *timeline);

Stops the ClutterTimeline and moves to frame 0

timeline : A ClutterTimeline

clutter_timeline_set_loop ()

void                clutter_timeline_set_loop           (ClutterTimeline *timeline,
                                                         gboolean loop);

Sets whether timeline should loop.

timeline : a ClutterTimeline
loop : TRUE for enable looping

clutter_timeline_get_loop ()

gboolean            clutter_timeline_get_loop           (ClutterTimeline *timeline);

Gets whether timeline is looping

timeline : a ClutterTimeline
Returns : TRUE if the timeline is looping

clutter_timeline_rewind ()

void                clutter_timeline_rewind             (ClutterTimeline *timeline);

Rewinds ClutterTimeline to frame 0.

timeline : A ClutterTimeline

clutter_timeline_skip ()

void                clutter_timeline_skip               (ClutterTimeline *timeline,
                                                         guint n_frames);

Advance timeline by requested number of frames.

timeline : A ClutterTimeline
n_frames : Number of frames to skip

clutter_timeline_advance ()

void                clutter_timeline_advance            (ClutterTimeline *timeline,
                                                         guint frame_num);

Advance timeline to requested frame number

timeline : A ClutterTimeline
frame_num : Frame number to advance to

clutter_timeline_get_current_frame ()

gint                clutter_timeline_get_current_frame  (ClutterTimeline *timeline);

Request the current frame number of the timeline.

timeline : A ClutterTimeline
Returns : current frame number

clutter_timeline_set_n_frames ()

void                clutter_timeline_set_n_frames       (ClutterTimeline *timeline,
                                                         guint n_frames);

Sets the total number of frames for timeline

timeline : a ClutterTimeline
n_frames : the number of frames

clutter_timeline_get_n_frames ()

guint               clutter_timeline_get_n_frames       (ClutterTimeline *timeline);

Request the total number of frames for the ClutterTimeline.

timeline : A ClutterTimeline
Returns : Number of frames for this ClutterTimeline.

clutter_timeline_is_playing ()

gboolean            clutter_timeline_is_playing         (ClutterTimeline *timeline);

Query state of a ClutterTimeline instance.

timeline : A ClutterTimeline
Returns : TRUE if timeline is currently playing, FALSE if not.

clutter_timeline_set_delay ()

void                clutter_timeline_set_delay          (ClutterTimeline *timeline,
                                                         guint msecs);

Sets the delay, in milliseconds, before timeline should start.

timeline : a ClutterTimeline
msecs : delay in milliseconds

Since 0.4


clutter_timeline_get_delay ()

guint               clutter_timeline_get_delay          (ClutterTimeline *timeline);

Retrieves the delay set using clutter_timeline_set_delay().

timeline : a ClutterTimeline
Returns : the delay in milliseconds.

Since 0.4