Import Upstream version 43.0upstream/latest

1 files changed, 150 insertions, 0 deletions

diff --git a/src/animation/gtd-timeline.h b/src/animation/gtd-timeline.h
new file mode 100644
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+++ b/src/animation/gtd-timeline.h
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+/* gtd-timeline.h
+ *
+ * Copyright 2020 Georges Basile Stavracas Neto <georges.stavracas@gmail.com>
+ *
+ * Heavily inspired by Clutter, authored By Matthew Allum  <mallum@openedhand.com>
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+#pragma once
+
+#include <glib-object.h>
+#include <gtk/gtk.h>
+
+#include "gtd-easing.h"
+#include "gtd-types.h"
+
+G_BEGIN_DECLS
+
+#define GTD_TYPE_TIMELINE (gtd_timeline_get_type())
+G_DECLARE_DERIVABLE_TYPE (GtdTimeline, gtd_timeline, GTD, TIMELINE, GObject)
+
+/**
+ * GtdTimelineProgressFunc:
+ * @timeline: a #GtdTimeline
+ * @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.
+ */
+typedef gdouble (* GtdTimelineProgressFunc)     (GtdTimeline *timeline,
+                                                 gdouble      elapsed,
+                                                 gdouble      total,
+                                                 gpointer     user_data);
+
+/**
+ * GtdTimelineClass:
+ * @started: class handler for the #GtdTimeline::started signal
+ * @completed: class handler for the #GtdTimeline::completed signal
+ * @paused: class handler for the #GtdTimeline::paused signal
+ * @new_frame: class handler for the #GtdTimeline::new-frame signal
+ * @stopped: class handler for the #GtdTimeline::stopped signal
+ *
+ * The #GtdTimelineClass structure contains only private data
+ */
+struct _GtdTimelineClass
+{
+  /*< private >*/
+  GObjectClass        parent_class;
+
+  /*< public >*/
+  void               (*started)        (GtdTimeline *timeline);
+  void               (*completed)      (GtdTimeline *timeline);
+  void               (*paused)         (GtdTimeline *timeline);
+
+  void               (*new_frame)      (GtdTimeline *timeline,
+                                        gint         msecs);
+
+  void               (*stopped)        (GtdTimeline *timeline,
+                                        gboolean     is_finished);
+};
+
+GtdTimeline*         gtd_timeline_new_for_widget                 (GtdWidget            *widget,
+                                                                  guint                 duration_ms);
+
+GtdWidget*           gtd_timeline_get_widget                     (GtdTimeline          *timeline);
+
+void                 gtd_timeline_set_widget                     (GtdTimeline          *timeline,
+                                                                  GtdWidget             *widget);
+
+guint                gtd_timeline_get_duration                   (GtdTimeline          *timeline);
+
+void                 gtd_timeline_set_duration                   (GtdTimeline          *timeline,
+                                                                  guint                 msecs);
+
+GtdTimelineDirection gtd_timeline_get_direction                  (GtdTimeline          *timeline);
+
+void                 gtd_timeline_set_direction                  (GtdTimeline          *timeline,
+                                                                  GtdTimelineDirection  direction);
+
+void                 gtd_timeline_start                          (GtdTimeline          *timeline);
+
+void                 gtd_timeline_pause                          (GtdTimeline          *timeline);
+
+void                 gtd_timeline_stop                           (GtdTimeline          *timeline);
+
+void                 gtd_timeline_set_auto_reverse               (GtdTimeline          *timeline,
+                                                                  gboolean              reverse);
+
+gboolean             gtd_timeline_get_auto_reverse               (GtdTimeline          *timeline);
+
+void                 gtd_timeline_set_repeat_count               (GtdTimeline          *timeline,
+                                                                  gint                  count);
+
+gint                 gtd_timeline_get_repeat_count               (GtdTimeline          *timeline);
+
+void                 gtd_timeline_rewind                         (GtdTimeline          *timeline);
+
+void                 gtd_timeline_skip                           (GtdTimeline          *timeline,
+                                                                  guint                 msecs);
+
+void                 gtd_timeline_advance                        (GtdTimeline          *timeline,
+                                                                  guint                 msecs);
+
+guint                gtd_timeline_get_elapsed_time               (GtdTimeline          *timeline);
+
+gdouble              gtd_timeline_get_progress                   (GtdTimeline          *timeline);
+
+gboolean             gtd_timeline_is_playing                     (GtdTimeline          *timeline);
+
+void                 gtd_timeline_set_delay                      (GtdTimeline          *timeline,
+                                                                  guint                 msecs);
+
+guint                gtd_timeline_get_delay                      (GtdTimeline          *timeline);
+
+guint                gtd_timeline_get_delta                      (GtdTimeline          *timeline);
+
+void                 gtd_timeline_set_progress_func              (GtdTimeline          *timeline,
+                                                                  GtdTimelineProgressFunc func,
+                                                                  gpointer                data,
+                                                                  GDestroyNotify          notify);
+
+void                 gtd_timeline_set_progress_mode              (GtdTimeline          *timeline,
+                                                                  GtdEaseMode           mode);
+
+GtdEaseMode          gtd_timeline_get_progress_mode              (GtdTimeline          *timeline);
+
+gint64               gtd_timeline_get_duration_hint              (GtdTimeline          *timeline);
+gint                 gtd_timeline_get_current_repeat             (GtdTimeline          *timeline);
+
+G_END_DECLS
+
+
+G_END_DECLS