2 * Copyright (c) 2016 Samsung Electronics Co., Ltd All Rights Reserved
4 * Licensed under the Apache License, Version 2.0 (the License);
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an AS IS BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
18 using System.Collections.Generic;
23 /// EcoreAnimator is a helper class, it provides functions to manager animations.
25 /// <since_tizen> preview </since_tizen>
26 public static class EcoreAnimator
28 static readonly Dictionary<int, Func<bool>> _taskMap = new Dictionary<int, Func<bool>>();
29 static readonly Object _taskLock = new Object();
30 static int _newTaskId = 0;
32 static Interop.Ecore.EcoreTaskCallback _nativeHandler;
34 static EcoreAnimator()
36 _nativeHandler = NativeHandler;
40 /// Gets current system time as a floating point value in seconds.
42 /// <returns>Current system time</returns>
43 /// <since_tizen> preview </since_tizen>
44 public static double GetCurrentTime()
46 return Interop.Ecore.ecore_time_get();
50 /// Adds an animator to call <paramref name="handler"/> at every animation tick during main loop execution.
52 /// <param name="handler">The function to call when it ticks off</param>
53 /// <returns>A handle to the new animator</returns>
54 /// <since_tizen> preview </since_tizen>
55 public static IntPtr AddAnimator(Func<bool> handler)
57 int id = RegistHandler(handler);
58 return Interop.Ecore.ecore_animator_add(_nativeHandler, (IntPtr)id);
62 /// Removes the specified animator from the animator list.
64 /// <param name="anim">The specified animator handle</param>
65 /// <since_tizen> preview </since_tizen>
66 public static void RemoveAnimator(IntPtr anim)
68 int taskId = (int)Interop.Ecore.ecore_animator_del(anim);
69 _taskMap.Remove(taskId);
72 static int RegistHandler(Func<bool> task)
77 taskId = _newTaskId++;
79 _taskMap[taskId] = task;
83 static bool NativeHandler(IntPtr userData)
85 int task_id = (int)userData;
86 Func<bool> userAction = null;
87 _taskMap.TryGetValue(task_id, out userAction);
88 return (userAction != null) ? userAction() : false;