From a544da2cdf98dc1763a84626e13a1e2e5da98e83 Mon Sep 17 00:00:00 2001 From: Cody Russell Date: Wed, 12 May 2010 23:21:36 +0200 Subject: IdoMessageDialog - a morphing message dialog. --- src/idotimeline.c | 721 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 721 insertions(+) create mode 100644 src/idotimeline.c (limited to 'src/idotimeline.c') diff --git a/src/idotimeline.c b/src/idotimeline.c new file mode 100644 index 0000000..f86f1f2 --- /dev/null +++ b/src/idotimeline.c @@ -0,0 +1,721 @@ +/* -*- Mode: C; c-file-style: "gnu"; tab-width: 8 -*- */ +/* gtktimeline.c + * + * Copyright (C) 2007 Carlos Garnacho + * + * 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 "idotimeline.h" +#include "idotypebuiltins.h" + +#include +#include + +#define IDO_TIMELINE_GET_PRIV(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), IDO_TYPE_TIMELINE, IdoTimelinePriv)) +#define MSECS_PER_SEC 1000 +#define FRAME_INTERVAL(nframes) (MSECS_PER_SEC / nframes) +#define DEFAULT_FPS 30 + +typedef struct IdoTimelinePriv IdoTimelinePriv; + +struct IdoTimelinePriv +{ + guint duration; + guint fps; + guint source_id; + + GTimer *timer; + + gdouble progress; + gdouble last_progress; + + GdkScreen *screen; + + guint animations_enabled : 1; + guint loop : 1; + guint direction : 1; +}; + +enum { + PROP_0, + PROP_FPS, + PROP_DURATION, + PROP_LOOP, + PROP_DIRECTION, + PROP_SCREEN +}; + +enum { + STARTED, + PAUSED, + FINISHED, + FRAME, + LAST_SIGNAL +}; + +static guint signals [LAST_SIGNAL] = { 0, }; + + +static void ido_timeline_set_property (GObject *object, + guint prop_id, + const GValue *value, + GParamSpec *pspec); +static void ido_timeline_get_property (GObject *object, + guint prop_id, + GValue *value, + GParamSpec *pspec); +static void ido_timeline_finalize (GObject *object); + + +G_DEFINE_TYPE (IdoTimeline, ido_timeline, G_TYPE_OBJECT) + + +static void +ido_timeline_class_init (IdoTimelineClass *klass) +{ + GObjectClass *object_class = G_OBJECT_CLASS (klass); + + object_class->set_property = ido_timeline_set_property; + object_class->get_property = ido_timeline_get_property; + object_class->finalize = ido_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", + IDO_TYPE_TIMELINE_DIRECTION, + IDO_TIMELINE_DIRECTION_FORWARD, + 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 (IdoTimelineClass, 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 (IdoTimelineClass, 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 (IdoTimelineClass, 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 (IdoTimelineClass, frame), + NULL, NULL, + g_cclosure_marshal_VOID__DOUBLE, + G_TYPE_NONE, 1, + G_TYPE_DOUBLE); + + g_type_class_add_private (klass, sizeof (IdoTimelinePriv)); +} + +static void +ido_timeline_init (IdoTimeline *timeline) +{ + IdoTimelinePriv *priv; + + priv = IDO_TIMELINE_GET_PRIV (timeline); + + priv->fps = DEFAULT_FPS; + priv->duration = 0.0; + priv->direction = IDO_TIMELINE_DIRECTION_FORWARD; + priv->screen = gdk_screen_get_default (); + + priv->last_progress = 0; +} + +static void +ido_timeline_set_property (GObject *object, + guint prop_id, + const GValue *value, + GParamSpec *pspec) +{ + IdoTimeline *timeline; + IdoTimelinePriv *priv; + + timeline = IDO_TIMELINE (object); + priv = IDO_TIMELINE_GET_PRIV (timeline); + + switch (prop_id) + { + case PROP_FPS: + ido_timeline_set_fps (timeline, g_value_get_uint (value)); + break; + case PROP_DURATION: + ido_timeline_set_duration (timeline, g_value_get_uint (value)); + break; + case PROP_LOOP: + ido_timeline_set_loop (timeline, g_value_get_boolean (value)); + break; + case PROP_DIRECTION: + ido_timeline_set_direction (timeline, g_value_get_enum (value)); + break; + case PROP_SCREEN: + ido_timeline_set_screen (timeline, + GDK_SCREEN (g_value_get_object (value))); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + } +} + +static void +ido_timeline_get_property (GObject *object, + guint prop_id, + GValue *value, + GParamSpec *pspec) +{ + IdoTimeline *timeline; + IdoTimelinePriv *priv; + + timeline = IDO_TIMELINE (object); + priv = IDO_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; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + } +} + +static void +ido_timeline_finalize (GObject *object) +{ + IdoTimelinePriv *priv; + + priv = IDO_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 (ido_timeline_parent_class)->finalize (object); +} + +static gboolean +ido_timeline_run_frame (IdoTimeline *timeline) +{ + IdoTimelinePriv *priv; + gdouble delta_progress, progress; + guint elapsed_time; + + priv = IDO_TIMELINE_GET_PRIV (timeline); + + elapsed_time = (guint) (g_timer_elapsed (priv->timer, NULL) * 1000); + g_timer_start (priv->timer); + + if (priv->animations_enabled) + { + delta_progress = (gdouble) elapsed_time / priv->duration; + progress = priv->last_progress; + + if (priv->direction == IDO_TIMELINE_DIRECTION_BACKWARD) + progress -= delta_progress; + else + progress += delta_progress; + + priv->last_progress = progress; + + progress = CLAMP (progress, 0., 1.); + } + else + progress = (priv->direction == IDO_TIMELINE_DIRECTION_FORWARD) ? 1.0 : 0.0; + + priv->progress = progress; + g_signal_emit (timeline, signals [FRAME], 0, progress); + + if ((priv->direction == IDO_TIMELINE_DIRECTION_FORWARD && progress == 1.0) || + (priv->direction == IDO_TIMELINE_DIRECTION_BACKWARD && progress == 0.0)) + { + if (!priv->loop) + { + if (priv->source_id) + { + g_source_remove (priv->source_id); + priv->source_id = 0; + } + g_timer_stop (priv->timer); + g_signal_emit (timeline, signals [FINISHED], 0); + return FALSE; + } + else + ido_timeline_rewind (timeline); + } + + return TRUE; +} + +/** + * ido_timeline_new: + * @duration: duration in milliseconds for the timeline + * + * Creates a new #IdoTimeline with the specified number of frames. + * + * Return Value: the newly created #IdoTimeline + **/ +IdoTimeline * +ido_timeline_new (guint duration) +{ + return g_object_new (IDO_TYPE_TIMELINE, + "duration", duration, + NULL); +} + +IdoTimeline * +ido_timeline_new_for_screen (guint duration, + GdkScreen *screen) +{ + return g_object_new (IDO_TYPE_TIMELINE, + "duration", duration, + "screen", screen, + NULL); +} + +/** + * ido_timeline_start: + * @timeline: A #IdoTimeline + * + * Runs the timeline from the current frame. + **/ +void +ido_timeline_start (IdoTimeline *timeline) +{ + IdoTimelinePriv *priv; + gboolean enable_animations = FALSE; + + g_return_if_fail (IDO_IS_TIMELINE (timeline)); + + priv = IDO_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); + + if (priv->screen) + { +#if 0 + GtkSettings *settings = gtk_settings_get_for_screen (priv->screen); + g_object_get (settings, "ido-enable-animations", &enable_animations, NULL); +#else + // XXX + enable_animations = TRUE; +#endif + } + + priv->animations_enabled = (enable_animations == TRUE); + + g_signal_emit (timeline, signals [STARTED], 0); + + if (enable_animations) + priv->source_id = gdk_threads_add_timeout (FRAME_INTERVAL (priv->fps), + (GSourceFunc) ido_timeline_run_frame, + timeline); + else + priv->source_id = gdk_threads_add_idle ((GSourceFunc) ido_timeline_run_frame, + timeline); + } +} + +/** + * ido_timeline_pause: + * @timeline: A #IdoTimeline + * + * Pauses the timeline. + **/ +void +ido_timeline_pause (IdoTimeline *timeline) +{ + IdoTimelinePriv *priv; + + g_return_if_fail (IDO_IS_TIMELINE (timeline)); + + priv = IDO_TIMELINE_GET_PRIV (timeline); + + if (priv->source_id) + { + g_timer_stop (priv->timer); + g_source_remove (priv->source_id); + priv->source_id = 0; + g_signal_emit (timeline, signals [PAUSED], 0); + } +} + +/** + * ido_timeline_rewind: + * @timeline: A #IdoTimeline + * + * Rewinds the timeline. + **/ +void +ido_timeline_rewind (IdoTimeline *timeline) +{ + IdoTimelinePriv *priv; + + g_return_if_fail (IDO_IS_TIMELINE (timeline)); + + priv = IDO_TIMELINE_GET_PRIV (timeline); + + if (ido_timeline_get_direction(timeline) != IDO_TIMELINE_DIRECTION_FORWARD) + priv->progress = priv->last_progress = 1.; + else + priv->progress = priv->last_progress = 0.; + + /* reset timer */ + if (priv->timer) + { + g_timer_start (priv->timer); + + if (!priv->source_id) + g_timer_stop (priv->timer); + } +} + +/** + * ido_timeline_is_running: + * @timeline: A #IdoTimeline + * + * Returns whether the timeline is running or not. + * + * Return Value: %TRUE if the timeline is running + **/ +gboolean +ido_timeline_is_running (IdoTimeline *timeline) +{ + IdoTimelinePriv *priv; + + g_return_val_if_fail (IDO_IS_TIMELINE (timeline), FALSE); + + priv = IDO_TIMELINE_GET_PRIV (timeline); + + return (priv->source_id != 0); +} + +/** + * ido_timeline_get_fps: + * @timeline: A #IdoTimeline + * + * Returns the number of frames per second. + * + * Return Value: frames per second + **/ +guint +ido_timeline_get_fps (IdoTimeline *timeline) +{ + IdoTimelinePriv *priv; + + g_return_val_if_fail (IDO_IS_TIMELINE (timeline), 1); + + priv = IDO_TIMELINE_GET_PRIV (timeline); + return priv->fps; +} + +/** + * ido_timeline_set_fps: + * @timeline: A #IdoTimeline + * @fps: frames per second + * + * Sets the number of frames per second that + * the timeline will play. + **/ +void +ido_timeline_set_fps (IdoTimeline *timeline, + guint fps) +{ + IdoTimelinePriv *priv; + + g_return_if_fail (IDO_IS_TIMELINE (timeline)); + g_return_if_fail (fps > 0); + + priv = IDO_TIMELINE_GET_PRIV (timeline); + + priv->fps = fps; + + if (ido_timeline_is_running (timeline)) + { + g_source_remove (priv->source_id); + priv->source_id = gdk_threads_add_timeout (FRAME_INTERVAL (priv->fps), + (GSourceFunc) ido_timeline_run_frame, + timeline); + } + + g_object_notify (G_OBJECT (timeline), "fps"); +} + +/** + * ido_timeline_get_loop: + * @timeline: A #IdoTimeline + * + * Returns whether the timeline loops to the + * beginning when it has reached the end. + * + * Return Value: %TRUE if the timeline loops + **/ +gboolean +ido_timeline_get_loop (IdoTimeline *timeline) +{ + IdoTimelinePriv *priv; + + g_return_val_if_fail (IDO_IS_TIMELINE (timeline), FALSE); + + priv = IDO_TIMELINE_GET_PRIV (timeline); + return priv->loop; +} + +/** + * ido_timeline_set_loop: + * @timeline: A #IdoTimeline + * @loop: %TRUE to make the timeline loop + * + * Sets whether the timeline loops to the beginning + * when it has reached the end. + **/ +void +ido_timeline_set_loop (IdoTimeline *timeline, + gboolean loop) +{ + IdoTimelinePriv *priv; + + g_return_if_fail (IDO_IS_TIMELINE (timeline)); + + priv = IDO_TIMELINE_GET_PRIV (timeline); + + if (loop != priv->loop) + { + priv->loop = loop; + g_object_notify (G_OBJECT (timeline), "loop"); + } +} + +void +ido_timeline_set_duration (IdoTimeline *timeline, + guint duration) +{ + IdoTimelinePriv *priv; + + g_return_if_fail (IDO_IS_TIMELINE (timeline)); + + priv = IDO_TIMELINE_GET_PRIV (timeline); + + if (duration != priv->duration) + { + priv->duration = duration; + g_object_notify (G_OBJECT (timeline), "duration"); + } +} + +guint +ido_timeline_get_duration (IdoTimeline *timeline) +{ + IdoTimelinePriv *priv; + + g_return_val_if_fail (IDO_IS_TIMELINE (timeline), 0); + + priv = IDO_TIMELINE_GET_PRIV (timeline); + + return priv->duration; +} + +/** + * ido_timeline_set_direction: + * @timeline: A #IdoTimeline + * @direction: direction + * + * Sets the direction of the timeline. + **/ +void +ido_timeline_set_direction (IdoTimeline *timeline, + IdoTimelineDirection direction) +{ + IdoTimelinePriv *priv; + + g_return_if_fail (IDO_IS_TIMELINE (timeline)); + + priv = IDO_TIMELINE_GET_PRIV (timeline); + + if (direction != priv->direction) + { + priv->direction = direction; + g_object_notify (G_OBJECT (timeline), "direction"); + } +} + +/** + * ido_timeline_get_direction: + * @timeline: A #IdoTimeline + * + * Returns the direction of the timeline. + * + * Return Value: direction + **/ +IdoTimelineDirection +ido_timeline_get_direction (IdoTimeline *timeline) +{ + IdoTimelinePriv *priv; + + g_return_val_if_fail (IDO_IS_TIMELINE (timeline), IDO_TIMELINE_DIRECTION_FORWARD); + + priv = IDO_TIMELINE_GET_PRIV (timeline); + return priv->direction; +} + +void +ido_timeline_set_screen (IdoTimeline *timeline, + GdkScreen *screen) +{ + IdoTimelinePriv *priv; + + g_return_if_fail (IDO_IS_TIMELINE (timeline)); + g_return_if_fail (GDK_IS_SCREEN (screen)); + + priv = IDO_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"); +} + +GdkScreen * +ido_timeline_get_screen (IdoTimeline *timeline) +{ + IdoTimelinePriv *priv; + + g_return_val_if_fail (IDO_IS_TIMELINE (timeline), NULL); + + priv = IDO_TIMELINE_GET_PRIV (timeline); + return priv->screen; +} + +gdouble +ido_timeline_get_progress (IdoTimeline *timeline) +{ + IdoTimelinePriv *priv; + + g_return_val_if_fail (IDO_IS_TIMELINE (timeline), 0.); + + priv = IDO_TIMELINE_GET_PRIV (timeline); + return priv->progress; +} + +gdouble +ido_timeline_calculate_progress (gdouble linear_progress, + IdoTimelineProgressType progress_type) +{ + gdouble progress; + + progress = linear_progress; + + switch (progress_type) + { + case IDO_TIMELINE_PROGRESS_LINEAR: + break; + case IDO_TIMELINE_PROGRESS_SINUSOIDAL: + progress = sinf ((progress * G_PI) / 2); + break; + case IDO_TIMELINE_PROGRESS_EXPONENTIAL: + progress *= progress; + break; + case IDO_TIMELINE_PROGRESS_EASE_IN_EASE_OUT: + { + progress *= 2; + + if (progress < 1) + progress = pow (progress, 3) / 2; + else + progress = (pow (progress - 2, 3) + 2) / 2; + } + } + + return progress; +} -- cgit v1.2.3