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-rw-r--r--plugins/mouse/gsd-timeline.c848
1 files changed, 0 insertions, 848 deletions
diff --git a/plugins/mouse/gsd-timeline.c b/plugins/mouse/gsd-timeline.c
deleted file mode 100644
index 9bcfd2f..0000000
--- a/plugins/mouse/gsd-timeline.c
+++ /dev/null
@@ -1,848 +0,0 @@
-/* msd-timeline.c
- *
- * Copyright (C) 2008 Carlos Garnacho <[email protected]>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program 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
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
- */
-
-#include <glib.h>
-#include <gtk/gtk.h>
-#include <math.h>
-#include "msd-timeline.h"
-
-#define MSD_TIMELINE_GET_PRIV(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), MSD_TYPE_TIMELINE, MsdTimelinePriv))
-#define MSECS_PER_SEC 1000
-#define FRAME_INTERVAL(nframes) (MSECS_PER_SEC / nframes)
-#define DEFAULT_FPS 30
-
-typedef struct MsdTimelinePriv MsdTimelinePriv;
-
-struct MsdTimelinePriv
-{
- guint duration;
- guint fps;
- guint source_id;
-
- GTimer *timer;
-
- GdkScreen *screen;
- MsdTimelineProgressType progress_type;
- MsdTimelineProgressFunc progress_func;
-
- guint loop : 1;
- guint direction : 1;
-};
-
-enum {
- PROP_0,
- PROP_FPS,
- PROP_DURATION,
- PROP_LOOP,
- PROP_DIRECTION,
- PROP_SCREEN,
- PROP_PROGRESS_TYPE,
-};
-
-enum {
- STARTED,
- PAUSED,
- FINISHED,
- FRAME,
- LAST_SIGNAL
-};
-
-static guint signals [LAST_SIGNAL] = { 0, };
-
-
-static void msd_timeline_set_property (GObject *object,
- guint prop_id,
- const GValue *value,
- GParamSpec *pspec);
-static void msd_timeline_get_property (GObject *object,
- guint prop_id,
- GValue *value,
- GParamSpec *pspec);
-static void msd_timeline_finalize (GObject *object);
-
-
-G_DEFINE_TYPE (MsdTimeline, msd_timeline, G_TYPE_OBJECT)
-
-
-GType
-msd_timeline_direction_get_type (void)
-{
- static GType type = 0;
-
- if (G_UNLIKELY (type == 0))
- {
- static const GEnumValue values[] = {
- { MSD_TIMELINE_DIRECTION_FORWARD, "MSD_TIMELINE_DIRECTION_FORWARD", "forward" },
- { MSD_TIMELINE_DIRECTION_BACKWARD, "MSD_TIMELINE_DIRECTION_BACKWARD", "backward" },
- { 0, NULL, NULL }
- };
-
- type = g_enum_register_static (g_intern_static_string ("MsdTimelineDirection"), values);
- }
-
- return type;
-}
-
-GType
-msd_timeline_progress_type_get_type (void)
-{
- static GType type = 0;
-
- if (G_UNLIKELY (type == 0))
- {
- static const GEnumValue values[] = {
- { MSD_TIMELINE_PROGRESS_LINEAR, "MSD_TIMELINE_PROGRESS_LINEAR", "linear" },
- { MSD_TIMELINE_PROGRESS_SINUSOIDAL, "MSD_TIMELINE_PROGRESS_SINUSOIDAL", "sinusoidal" },
- { MSD_TIMELINE_PROGRESS_EXPONENTIAL, "MSD_TIMELINE_PROGRESS_EXPONENTIAL", "exponential" },
- { 0, NULL, NULL }
- };
-
- type = g_enum_register_static (g_intern_static_string ("MsdTimelineProgressType"), values);
- }
-
- return type;
-}
-
-static void
-msd_timeline_class_init (MsdTimelineClass *class)
-{
- GObjectClass *object_class = G_OBJECT_CLASS (class);
-
- object_class->set_property = msd_timeline_set_property;
- object_class->get_property = msd_timeline_get_property;
- object_class->finalize = msd_timeline_finalize;
-
- g_object_class_install_property (object_class,
- PROP_FPS,
- g_param_spec_uint ("fps",
- "FPS",
- "Frames per second for the timeline",
- 1,
- G_MAXUINT,
- DEFAULT_FPS,
- G_PARAM_READWRITE));
- g_object_class_install_property (object_class,
- PROP_DURATION,
- g_param_spec_uint ("duration",
- "Animation Duration",
- "Animation Duration",
- 0,
- G_MAXUINT,
- 0,
- G_PARAM_READWRITE));
- g_object_class_install_property (object_class,
- PROP_LOOP,
- g_param_spec_boolean ("loop",
- "Loop",
- "Whether the timeline loops or not",
- FALSE,
- G_PARAM_READWRITE));
- g_object_class_install_property (object_class,
- PROP_DIRECTION,
- g_param_spec_enum ("direction",
- "Direction",
- "Whether the timeline moves forward or backward in time",
- MSD_TYPE_TIMELINE_DIRECTION,
- MSD_TIMELINE_DIRECTION_FORWARD,
- G_PARAM_READWRITE));
- g_object_class_install_property (object_class,
- PROP_DIRECTION,
- g_param_spec_enum ("progress-type",
- "Progress type",
- "Type of progress through the timeline",
- MSD_TYPE_TIMELINE_PROGRESS_TYPE,
- MSD_TIMELINE_PROGRESS_LINEAR,
- G_PARAM_READWRITE));
- g_object_class_install_property (object_class,
- PROP_SCREEN,
- g_param_spec_object ("screen",
- "Screen",
- "Screen to get the settings from",
- GDK_TYPE_SCREEN,
- G_PARAM_READWRITE));
-
- signals[STARTED] =
- g_signal_new ("started",
- G_TYPE_FROM_CLASS (object_class),
- G_SIGNAL_RUN_LAST,
- G_STRUCT_OFFSET (MsdTimelineClass, started),
- NULL, NULL,
- g_cclosure_marshal_VOID__VOID,
- G_TYPE_NONE, 0);
-
- signals[PAUSED] =
- g_signal_new ("paused",
- G_TYPE_FROM_CLASS (object_class),
- G_SIGNAL_RUN_LAST,
- G_STRUCT_OFFSET (MsdTimelineClass, paused),
- NULL, NULL,
- g_cclosure_marshal_VOID__VOID,
- G_TYPE_NONE, 0);
-
- signals[FINISHED] =
- g_signal_new ("finished",
- G_TYPE_FROM_CLASS (object_class),
- G_SIGNAL_RUN_LAST,
- G_STRUCT_OFFSET (MsdTimelineClass, finished),
- NULL, NULL,
- g_cclosure_marshal_VOID__VOID,
- G_TYPE_NONE, 0);
-
- signals[FRAME] =
- g_signal_new ("frame",
- G_TYPE_FROM_CLASS (object_class),
- G_SIGNAL_RUN_LAST,
- G_STRUCT_OFFSET (MsdTimelineClass, frame),
- NULL, NULL,
- g_cclosure_marshal_VOID__DOUBLE,
- G_TYPE_NONE, 1,
- G_TYPE_DOUBLE);
-
- g_type_class_add_private (class, sizeof (MsdTimelinePriv));
-}
-
-static void
-msd_timeline_init (MsdTimeline *timeline)
-{
- MsdTimelinePriv *priv;
-
- priv = MSD_TIMELINE_GET_PRIV (timeline);
-
- priv->fps = DEFAULT_FPS;
- priv->duration = 0;
- priv->direction = MSD_TIMELINE_DIRECTION_FORWARD;
- priv->screen = gdk_screen_get_default ();
-}
-
-static void
-msd_timeline_set_property (GObject *object,
- guint prop_id,
- const GValue *value,
- GParamSpec *pspec)
-{
- MsdTimeline *timeline;
- MsdTimelinePriv *priv;
-
- timeline = MSD_TIMELINE (object);
- priv = MSD_TIMELINE_GET_PRIV (timeline);
-
- switch (prop_id)
- {
- case PROP_FPS:
- msd_timeline_set_fps (timeline, g_value_get_uint (value));
- break;
- case PROP_DURATION:
- msd_timeline_set_duration (timeline, g_value_get_uint (value));
- break;
- case PROP_LOOP:
- msd_timeline_set_loop (timeline, g_value_get_boolean (value));
- break;
- case PROP_DIRECTION:
- msd_timeline_set_direction (timeline, g_value_get_enum (value));
- break;
- case PROP_SCREEN:
- msd_timeline_set_screen (timeline,
- GDK_SCREEN (g_value_get_object (value)));
- break;
- case PROP_PROGRESS_TYPE:
- msd_timeline_set_progress_type (timeline, g_value_get_enum (value));
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- }
-}
-
-static void
-msd_timeline_get_property (GObject *object,
- guint prop_id,
- GValue *value,
- GParamSpec *pspec)
-{
- MsdTimeline *timeline;
- MsdTimelinePriv *priv;
-
- timeline = MSD_TIMELINE (object);
- priv = MSD_TIMELINE_GET_PRIV (timeline);
-
- switch (prop_id)
- {
- case PROP_FPS:
- g_value_set_uint (value, priv->fps);
- break;
- case PROP_DURATION:
- g_value_set_uint (value, priv->duration);
- break;
- case PROP_LOOP:
- g_value_set_boolean (value, priv->loop);
- break;
- case PROP_DIRECTION:
- g_value_set_enum (value, priv->direction);
- break;
- case PROP_SCREEN:
- g_value_set_object (value, priv->screen);
- break;
- case PROP_PROGRESS_TYPE:
- g_value_set_enum (value, priv->progress_type);
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- }
-}
-
-static void
-msd_timeline_finalize (GObject *object)
-{
- MsdTimelinePriv *priv;
-
- priv = MSD_TIMELINE_GET_PRIV (object);
-
- if (priv->source_id)
- {
- g_source_remove (priv->source_id);
- priv->source_id = 0;
- }
-
- if (priv->timer)
- g_timer_destroy (priv->timer);
-
- G_OBJECT_CLASS (msd_timeline_parent_class)->finalize (object);
-}
-
-/* Sinusoidal progress */
-static gdouble
-sinusoidal_progress (gdouble progress)
-{
- return (sinf ((progress * G_PI) / 2));
-}
-
-static gdouble
-exponential_progress (gdouble progress)
-{
- return progress * progress;
-}
-
-static MsdTimelineProgressFunc
-progress_type_to_func (MsdTimelineProgressType type)
-{
- if (type == MSD_TIMELINE_PROGRESS_SINUSOIDAL)
- return sinusoidal_progress;
- else if (type == MSD_TIMELINE_PROGRESS_EXPONENTIAL)
- return exponential_progress;
-
- return NULL;
-}
-
-static gboolean
-msd_timeline_run_frame (MsdTimeline *timeline,
- gboolean enable_animations)
-{
- MsdTimelinePriv *priv;
- gdouble linear_progress, progress;
- guint elapsed_time;
- MsdTimelineProgressFunc progress_func = NULL;
-
- priv = MSD_TIMELINE_GET_PRIV (timeline);
-
- if (enable_animations)
- {
- elapsed_time = (guint) (g_timer_elapsed (priv->timer, NULL) * 1000);
-
- linear_progress = (gdouble) elapsed_time / priv->duration;
-
- if (priv->direction == MSD_TIMELINE_DIRECTION_BACKWARD)
- linear_progress = 1 - linear_progress;
-
- linear_progress = CLAMP (linear_progress, 0., 1.);
-
- if (priv->progress_func)
- progress_func = priv->progress_func;
- else if (priv->progress_type)
- progress_func = progress_type_to_func (priv->progress_type);
-
- if (progress_func)
- progress = (progress_func) (linear_progress);
- else
- progress = linear_progress;
- }
- else
- progress = (priv->direction == MSD_TIMELINE_DIRECTION_FORWARD) ? 1.0 : 0.0;
-
- g_signal_emit (timeline, signals [FRAME], 0,
- CLAMP (progress, 0.0, 1.0));
-
- if ((priv->direction == MSD_TIMELINE_DIRECTION_FORWARD && progress >= 1.0) ||
- (priv->direction == MSD_TIMELINE_DIRECTION_BACKWARD && progress <= 0.0))
- {
- if (!priv->loop)
- {
- if (priv->source_id)
- {
- g_source_remove (priv->source_id);
- priv->source_id = 0;
- }
-
- g_signal_emit (timeline, signals [FINISHED], 0);
- return FALSE;
- }
- else
- msd_timeline_rewind (timeline);
- }
-
- return TRUE;
-}
-
-static gboolean
-msd_timeline_frame_idle_func (MsdTimeline *timeline)
-{
- return msd_timeline_run_frame (timeline, TRUE);
-}
-
-/**
- * msd_timeline_new:
- * @duration: duration in milliseconds for the timeline
- *
- * Creates a new #MsdTimeline with the specified number of frames.
- *
- * Return Value: the newly created #MsdTimeline
- **/
-MsdTimeline *
-msd_timeline_new (guint duration)
-{
- return g_object_new (MSD_TYPE_TIMELINE,
- "duration", duration,
- NULL);
-}
-
-MsdTimeline *
-msd_timeline_new_for_screen (guint duration,
- GdkScreen *screen)
-{
- return g_object_new (MSD_TYPE_TIMELINE,
- "duration", duration,
- "screen", screen,
- NULL);
-}
-
-/**
- * msd_timeline_start:
- * @timeline: A #MsdTimeline
- *
- * Runs the timeline from the current frame.
- **/
-void
-msd_timeline_start (MsdTimeline *timeline)
-{
- MsdTimelinePriv *priv;
- GtkSettings *settings;
- gboolean enable_animations = FALSE;
-
- g_return_if_fail (MSD_IS_TIMELINE (timeline));
-
- priv = MSD_TIMELINE_GET_PRIV (timeline);
-
- if (priv->screen)
- {
- settings = gtk_settings_get_for_screen (priv->screen);
- g_object_get (settings, "gtk-enable-animations", &enable_animations, NULL);
- }
-
- if (enable_animations)
- {
- if (!priv->source_id)
- {
- if (priv->timer)
- g_timer_continue (priv->timer);
- else
- priv->timer = g_timer_new ();
-
- /* sanity check */
- g_assert (priv->fps > 0);
-
- g_signal_emit (timeline, signals [STARTED], 0);
-
- priv->source_id = gdk_threads_add_timeout (FRAME_INTERVAL (priv->fps),
- (GSourceFunc) msd_timeline_frame_idle_func,
- timeline);
- }
- }
- else
- {
- /* If animations are not enabled, only run the last frame,
- * it take us instantaneously to the last state of the animation.
- * The only potential flaw happens when people use the ::finished
- * signal to trigger another animation, or even worse, finally
- * loop into this animation again.
- */
- g_signal_emit (timeline, signals [STARTED], 0);
- msd_timeline_run_frame (timeline, FALSE);
- }
-}
-
-/**
- * msd_timeline_pause:
- * @timeline: A #MsdTimeline
- *
- * Pauses the timeline.
- **/
-void
-msd_timeline_pause (MsdTimeline *timeline)
-{
- MsdTimelinePriv *priv;
-
- g_return_if_fail (MSD_IS_TIMELINE (timeline));
-
- priv = MSD_TIMELINE_GET_PRIV (timeline);
-
- if (priv->source_id)
- {
- g_source_remove (priv->source_id);
- priv->source_id = 0;
- g_timer_stop (priv->timer);
- g_signal_emit (timeline, signals [PAUSED], 0);
- }
-}
-
-/**
- * msd_timeline_rewind:
- * @timeline: A #MsdTimeline
- *
- * Rewinds the timeline.
- **/
-void
-msd_timeline_rewind (MsdTimeline *timeline)
-{
- MsdTimelinePriv *priv;
-
- g_return_if_fail (MSD_IS_TIMELINE (timeline));
-
- priv = MSD_TIMELINE_GET_PRIV (timeline);
-
- /* destroy and re-create timer if neccesary */
- if (priv->timer)
- {
- g_timer_destroy (priv->timer);
-
- if (msd_timeline_is_running (timeline))
- priv->timer = g_timer_new ();
- else
- priv->timer = NULL;
- }
-}
-
-/**
- * msd_timeline_is_running:
- * @timeline: A #MsdTimeline
- *
- * Returns whether the timeline is running or not.
- *
- * Return Value: %TRUE if the timeline is running
- **/
-gboolean
-msd_timeline_is_running (MsdTimeline *timeline)
-{
- MsdTimelinePriv *priv;
-
- g_return_val_if_fail (MSD_IS_TIMELINE (timeline), FALSE);
-
- priv = MSD_TIMELINE_GET_PRIV (timeline);
-
- return (priv->source_id != 0);
-}
-
-/**
- * msd_timeline_get_fps:
- * @timeline: A #MsdTimeline
- *
- * Returns the number of frames per second.
- *
- * Return Value: frames per second
- **/
-guint
-msd_timeline_get_fps (MsdTimeline *timeline)
-{
- MsdTimelinePriv *priv;
-
- g_return_val_if_fail (MSD_IS_TIMELINE (timeline), 1);
-
- priv = MSD_TIMELINE_GET_PRIV (timeline);
- return priv->fps;
-}
-
-/**
- * msd_timeline_set_fps:
- * @timeline: A #MsdTimeline
- * @fps: frames per second
- *
- * Sets the number of frames per second that
- * the timeline will play.
- **/
-void
-msd_timeline_set_fps (MsdTimeline *timeline,
- guint fps)
-{
- MsdTimelinePriv *priv;
-
- g_return_if_fail (MSD_IS_TIMELINE (timeline));
- g_return_if_fail (fps > 0);
-
- priv = MSD_TIMELINE_GET_PRIV (timeline);
-
- priv->fps = fps;
-
- if (msd_timeline_is_running (timeline))
- {
- g_source_remove (priv->source_id);
- priv->source_id = gdk_threads_add_timeout (FRAME_INTERVAL (priv->fps),
- (GSourceFunc) msd_timeline_run_frame,
- timeline);
- }
-
- g_object_notify (G_OBJECT (timeline), "fps");
-}
-
-/**
- * msd_timeline_get_loop:
- * @timeline: A #MsdTimeline
- *
- * Returns whether the timeline loops to the
- * beginning when it has reached the end.
- *
- * Return Value: %TRUE if the timeline loops
- **/
-gboolean
-msd_timeline_get_loop (MsdTimeline *timeline)
-{
- MsdTimelinePriv *priv;
-
- g_return_val_if_fail (MSD_IS_TIMELINE (timeline), FALSE);
-
- priv = MSD_TIMELINE_GET_PRIV (timeline);
- return priv->loop;
-}
-
-/**
- * msd_timeline_set_loop:
- * @timeline: A #MsdTimeline
- * @loop: %TRUE to make the timeline loop
- *
- * Sets whether the timeline loops to the beginning
- * when it has reached the end.
- **/
-void
-msd_timeline_set_loop (MsdTimeline *timeline,
- gboolean loop)
-{
- MsdTimelinePriv *priv;
-
- g_return_if_fail (MSD_IS_TIMELINE (timeline));
-
- priv = MSD_TIMELINE_GET_PRIV (timeline);
- priv->loop = loop;
-
- g_object_notify (G_OBJECT (timeline), "loop");
-}
-
-void
-msd_timeline_set_duration (MsdTimeline *timeline,
- guint duration)
-{
- MsdTimelinePriv *priv;
-
- g_return_if_fail (MSD_IS_TIMELINE (timeline));
-
- priv = MSD_TIMELINE_GET_PRIV (timeline);
-
- priv->duration = duration;
-
- g_object_notify (G_OBJECT (timeline), "duration");
-}
-
-guint
-msd_timeline_get_duration (MsdTimeline *timeline)
-{
- MsdTimelinePriv *priv;
-
- g_return_val_if_fail (MSD_IS_TIMELINE (timeline), 0);
-
- priv = MSD_TIMELINE_GET_PRIV (timeline);
-
- return priv->duration;
-}
-
-/**
- * msd_timeline_get_direction:
- * @timeline: A #MsdTimeline
- *
- * Returns the direction of the timeline.
- *
- * Return Value: direction
- **/
-MsdTimelineDirection
-msd_timeline_get_direction (MsdTimeline *timeline)
-{
- MsdTimelinePriv *priv;
-
- g_return_val_if_fail (MSD_IS_TIMELINE (timeline), MSD_TIMELINE_DIRECTION_FORWARD);
-
- priv = MSD_TIMELINE_GET_PRIV (timeline);
- return priv->direction;
-}
-
-/**
- * msd_timeline_set_direction:
- * @timeline: A #MsdTimeline
- * @direction: direction
- *
- * Sets the direction of the timeline.
- **/
-void
-msd_timeline_set_direction (MsdTimeline *timeline,
- MsdTimelineDirection direction)
-{
- MsdTimelinePriv *priv;
-
- g_return_if_fail (MSD_IS_TIMELINE (timeline));
-
- priv = MSD_TIMELINE_GET_PRIV (timeline);
- priv->direction = direction;
-
- g_object_notify (G_OBJECT (timeline), "direction");
-}
-
-GdkScreen *
-msd_timeline_get_screen (MsdTimeline *timeline)
-{
- MsdTimelinePriv *priv;
-
- g_return_val_if_fail (MSD_IS_TIMELINE (timeline), NULL);
-
- priv = MSD_TIMELINE_GET_PRIV (timeline);
- return priv->screen;
-}
-
-void
-msd_timeline_set_screen (MsdTimeline *timeline,
- GdkScreen *screen)
-{
- MsdTimelinePriv *priv;
-
- g_return_if_fail (MSD_IS_TIMELINE (timeline));
- g_return_if_fail (GDK_IS_SCREEN (screen));
-
- priv = MSD_TIMELINE_GET_PRIV (timeline);
-
- if (priv->screen)
- g_object_unref (priv->screen);
-
- priv->screen = g_object_ref (screen);
-
- g_object_notify (G_OBJECT (timeline), "screen");
-}
-
-void
-msd_timeline_set_progress_type (MsdTimeline *timeline,
- MsdTimelineProgressType type)
-{
- MsdTimelinePriv *priv;
-
- g_return_if_fail (MSD_IS_TIMELINE (timeline));
-
- priv = MSD_TIMELINE_GET_PRIV (timeline);
-
- priv->progress_type = type;
-
- g_object_notify (G_OBJECT (timeline), "progress-type");
-}
-
-MsdTimelineProgressType
-msd_timeline_get_progress_type (MsdTimeline *timeline)
-{
- MsdTimelinePriv *priv;
-
- g_return_val_if_fail (MSD_IS_TIMELINE (timeline), MSD_TIMELINE_PROGRESS_LINEAR);
-
- priv = MSD_TIMELINE_GET_PRIV (timeline);
-
- if (priv->progress_func)
- return MSD_TIMELINE_PROGRESS_LINEAR;
-
- return priv->progress_type;
-}
-
-/**
- * msd_timeline_set_progress_func:
- * @timeline: A #MsdTimeline
- * @progress_func: progress function
- *
- * Sets the progress function. This function will be used to calculate
- * a different progress to pass to the ::frame signal based on the
- * linear progress through the timeline. Setting progress_func
- * to %NULL will make the timeline use the default function,
- * which is just a linear progress.
- *
- * All progresses are in the [0.0, 1.0] range.
- **/
-void
-msd_timeline_set_progress_func (MsdTimeline *timeline,
- MsdTimelineProgressFunc progress_func)
-{
- MsdTimelinePriv *priv;
-
- g_return_if_fail (MSD_IS_TIMELINE (timeline));
-
- priv = MSD_TIMELINE_GET_PRIV (timeline);
- priv->progress_func = progress_func;
-}
-
-gdouble
-msd_timeline_get_progress (MsdTimeline *timeline)
-{
- MsdTimelinePriv *priv;
- MsdTimelineProgressFunc progress_func = NULL;
- gdouble linear_progress, progress;
- guint elapsed_time;
-
- g_return_val_if_fail (MSD_IS_TIMELINE (timeline), 0.0);
-
- priv = MSD_TIMELINE_GET_PRIV (timeline);
-
- if (!priv->timer)
- return 0.;
-
- elapsed_time = (guint) (g_timer_elapsed (priv->timer, NULL) * 1000);
-
- linear_progress = (gdouble) elapsed_time / priv->duration;
-
- if (priv->direction == MSD_TIMELINE_DIRECTION_BACKWARD)
- linear_progress = 1 - linear_progress;
-
- linear_progress = CLAMP (linear_progress, 0., 1.);
-
- if (priv->progress_func)
- progress_func = priv->progress_func;
- else if (priv->progress_type)
- progress_func = progress_type_to_func (priv->progress_type);
-
- if (progress_func)
- progress = (progress_func) (linear_progress);
- else
- progress = linear_progress;
-
- return CLAMP (progress, 0., 1.);
-}
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