diff options
Diffstat (limited to 'shell/ev-timeline.c')
| -rw-r--r-- | shell/ev-timeline.c | 450 |
1 files changed, 0 insertions, 450 deletions
diff --git a/shell/ev-timeline.c b/shell/ev-timeline.c deleted file mode 100644 index 1545dff..0000000 --- a/shell/ev-timeline.c +++ /dev/null @@ -1,450 +0,0 @@ -/* ev-timeline.c - * this file is part of evince, a gnome document viewer - * - * Copyright (C) 2007 Carlos Garnacho <carlos@imendio.com> - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library 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 - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 02111-1307, USA. - */ - -#include <glib.h> -#include <math.h> -#include <gdk/gdk.h> -#include "ev-timeline.h" - -#define EV_TIMELINE_GET_PRIV(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), EV_TYPE_TIMELINE, EvTimelinePriv)) -#define MSECS_PER_SEC 1000 -#define FRAME_INTERVAL(nframes) (MSECS_PER_SEC / nframes) -#define DEFAULT_FPS 30 - -typedef struct EvTimelinePriv EvTimelinePriv; - -struct EvTimelinePriv { - guint duration; - guint fps; - guint source_id; - - GTimer *timer; - - guint loop : 1; -}; - -enum { - PROP_0, - PROP_FPS, - PROP_DURATION, - PROP_LOOP -}; - -enum { - STARTED, - PAUSED, - FINISHED, - FRAME, - LAST_SIGNAL -}; - -static guint signals [LAST_SIGNAL] = { 0, }; - - -G_DEFINE_TYPE (EvTimeline, ev_timeline, G_TYPE_OBJECT) - - -static void -ev_timeline_init (EvTimeline *timeline) -{ - EvTimelinePriv *priv; - - priv = EV_TIMELINE_GET_PRIV (timeline); - - priv->fps = DEFAULT_FPS; - priv->duration = 0; -} - -static void -ev_timeline_set_property (GObject *object, - guint prop_id, - const GValue *value, - GParamSpec *pspec) -{ - EvTimeline *timeline; - - timeline = EV_TIMELINE (object); - - switch (prop_id) { - case PROP_FPS: - ev_timeline_set_fps (timeline, g_value_get_uint (value)); - break; - case PROP_DURATION: - ev_timeline_set_duration (timeline, g_value_get_uint (value)); - break; - case PROP_LOOP: - ev_timeline_set_loop (timeline, g_value_get_boolean (value)); - break; - default: - G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); - } -} - -static void -ev_timeline_get_property (GObject *object, - guint prop_id, - GValue *value, - GParamSpec *pspec) -{ - EvTimeline *timeline; - EvTimelinePriv *priv; - - timeline = EV_TIMELINE (object); - priv = EV_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; - default: - G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); - } -} - -static void -ev_timeline_finalize (GObject *object) -{ - EvTimelinePriv *priv; - - priv = EV_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 (ev_timeline_parent_class)->finalize (object); -} - -static gboolean -ev_timeline_run_frame (EvTimeline *timeline) -{ - EvTimelinePriv *priv; - gdouble progress; - guint elapsed_time; - - GDK_THREADS_ENTER (); - - priv = EV_TIMELINE_GET_PRIV (timeline); - - elapsed_time = (guint) (g_timer_elapsed (priv->timer, NULL) * 1000); - progress = (gdouble) elapsed_time / priv->duration; - progress = CLAMP (progress, 0., 1.); - - g_signal_emit (timeline, signals [FRAME], 0, progress); - - if (progress >= 1.0) { - 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 { - ev_timeline_rewind (timeline); - } - } - - GDK_THREADS_LEAVE (); - - return TRUE; -} - -static void -ev_timeline_real_start (EvTimeline *timeline) -{ - EvTimelinePriv *priv; - - priv = EV_TIMELINE_GET_PRIV (timeline); - - 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 = g_timeout_add (FRAME_INTERVAL (priv->fps), - (GSourceFunc) ev_timeline_run_frame, - timeline); - } -} - -static void -ev_timeline_class_init (EvTimelineClass *class) -{ - GObjectClass *object_class = G_OBJECT_CLASS (class); - - object_class->set_property = ev_timeline_set_property; - object_class->get_property = ev_timeline_get_property; - object_class->finalize = ev_timeline_finalize; - - class->start = ev_timeline_real_start; - - 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)); - signals[STARTED] = - g_signal_new ("started", - G_TYPE_FROM_CLASS (object_class), - G_SIGNAL_RUN_LAST, - G_STRUCT_OFFSET (EvTimelineClass, 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 (EvTimelineClass, 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 (EvTimelineClass, 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 (EvTimelineClass, frame), - NULL, NULL, - g_cclosure_marshal_VOID__DOUBLE, - G_TYPE_NONE, 1, - G_TYPE_DOUBLE); - - g_type_class_add_private (class, sizeof (EvTimelinePriv)); -} - -EvTimeline * -ev_timeline_new (guint duration) -{ - return g_object_new (EV_TYPE_TIMELINE, - "duration", duration, - NULL); -} - -void -ev_timeline_start (EvTimeline *timeline) -{ - g_return_if_fail (EV_IS_TIMELINE (timeline)); - - EV_TIMELINE_GET_CLASS (timeline)->start (timeline); -} - -void -ev_timeline_pause (EvTimeline *timeline) -{ - EvTimelinePriv *priv; - - g_return_if_fail (EV_IS_TIMELINE (timeline)); - - priv = EV_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); - } -} - -void -ev_timeline_rewind (EvTimeline *timeline) -{ - EvTimelinePriv *priv; - - g_return_if_fail (EV_IS_TIMELINE (timeline)); - - priv = EV_TIMELINE_GET_PRIV (timeline); - - /* destroy and re-create timer if neccesary */ - if (priv->timer) { - g_timer_destroy (priv->timer); - - if (ev_timeline_is_running (timeline)) - priv->timer = g_timer_new (); - else - priv->timer = NULL; - } -} - -gboolean -ev_timeline_is_running (EvTimeline *timeline) -{ - EvTimelinePriv *priv; - - g_return_val_if_fail (EV_IS_TIMELINE (timeline), FALSE); - - priv = EV_TIMELINE_GET_PRIV (timeline); - - return (priv->source_id != 0); -} - -guint -ev_timeline_get_fps (EvTimeline *timeline) -{ - EvTimelinePriv *priv; - - g_return_val_if_fail (EV_IS_TIMELINE (timeline), 1); - - priv = EV_TIMELINE_GET_PRIV (timeline); - return priv->fps; -} - -void -ev_timeline_set_fps (EvTimeline *timeline, - guint fps) -{ - EvTimelinePriv *priv; - - g_return_if_fail (EV_IS_TIMELINE (timeline)); - - priv = EV_TIMELINE_GET_PRIV (timeline); - - priv->fps = fps; - - if (ev_timeline_is_running (timeline)) { - g_source_remove (priv->source_id); - priv->source_id = g_timeout_add (FRAME_INTERVAL (priv->fps), - (GSourceFunc) ev_timeline_run_frame, - timeline); - } - - g_object_notify (G_OBJECT (timeline), "fps"); -} - -gboolean -ev_timeline_get_loop (EvTimeline *timeline) -{ - EvTimelinePriv *priv; - - g_return_val_if_fail (EV_IS_TIMELINE (timeline), FALSE); - - priv = EV_TIMELINE_GET_PRIV (timeline); - return priv->loop; -} - -void -ev_timeline_set_loop (EvTimeline *timeline, - gboolean loop) -{ - EvTimelinePriv *priv; - - g_return_if_fail (EV_IS_TIMELINE (timeline)); - - priv = EV_TIMELINE_GET_PRIV (timeline); - priv->loop = loop; - - g_object_notify (G_OBJECT (timeline), "loop"); -} - -void -ev_timeline_set_duration (EvTimeline *timeline, - guint duration) -{ - EvTimelinePriv *priv; - - g_return_if_fail (EV_IS_TIMELINE (timeline)); - - priv = EV_TIMELINE_GET_PRIV (timeline); - - priv->duration = duration; - - g_object_notify (G_OBJECT (timeline), "duration"); -} - -guint -ev_timeline_get_duration (EvTimeline *timeline) -{ - EvTimelinePriv *priv; - - g_return_val_if_fail (EV_IS_TIMELINE (timeline), 0); - - priv = EV_TIMELINE_GET_PRIV (timeline); - - return priv->duration; -} - -gdouble -ev_timeline_get_progress (EvTimeline *timeline) -{ - EvTimelinePriv *priv; - gdouble progress; - guint elapsed_time; - - g_return_val_if_fail (EV_IS_TIMELINE (timeline), 0.0); - - priv = EV_TIMELINE_GET_PRIV (timeline); - - if (!priv->timer) - return 0.; - - elapsed_time = (guint) (g_timer_elapsed (priv->timer, NULL) * 1000); - progress = (gdouble) elapsed_time / priv->duration; - - return CLAMP (progress, 0., 1.); -} |