/*
* Copyright (c) 2016 Samsung Electronics Co., Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/

using System;
using System.Runtime.InteropServices;
using Dali;
using Dali.Constants;

namespace MyCSharpExample
{
  class Example
  {
    private Dali.Application _application;
    private Animation _animation;
    private TextLabel _text;

    public Example(Dali.Application application)
    {
      _application = application;
      _application.Initialized += Initialize;
    }

    public void Initialize(object source, NUIApplicationInitEventArgs e)
    {
      Console.WriteLine("Customized Application Initialize event handler");
      Stage stage = Stage.Instance;
      stage.BackgroundColor = Color.White;
      stage.Touch += OnStageTouched;

      // Add a _text label to the stage
      _text = new TextLabel("Hello Mono World");
      _text.ParentOrigin = ParentOrigin.Center;
      _text.AnchorPoint = AnchorPoint.Center;
      _text.HorizontalAlignment = "CENTER";
      _text.PointSize = 32.0f;
      _text.TextColor = Color.Magenta;
      stage.Add(_text);
    }

    // Callback for _animation finished signal handling
    public void AnimationFinished(object sender, EventArgs e)
    {
      Console.WriteLine("AnimationFinished()!");
      if(_animation)
      {
        Console.WriteLine("Duration= " + _animation.Duration);
        Console.WriteLine("EndAction= " + _animation.EndAction);
      }
    }

    // Callback for stage touched signal handling
    public void OnStageTouched(object sender, Stage.TouchEventArgs e)
    {
      // Only animate the _text label when touch down happens
      if( e.Touch.GetState(0) == PointStateType.DOWN )
      {
        Console.WriteLine("Customized Stage Touch event handler");
        // Create a new _animation
        if( _animation )
        {
          //_animation.Stop(Dali.Constants.Animation.EndAction.Stop);
          _animation.Reset();
        }

        _animation = new Animation {
          Duration = 2000,
          StartTime = 0,
          EndTime = 500,
          TargetProperty = "Orientation",
          Destination = new Quaternion( new Radian( new Degree( 180.0f ) ), Vect3.Xaxis)
        };
        _animation.AnimateTo(_text);

        _animation.StartTime = 500;
        _animation.EndTime = 1000;
        _animation.TargetProperty = "Orientation";
        _animation.Destination = new Quaternion( new Radian( new Degree( 0.0f ) ), Vect3.Xaxis );
        _animation.AnimateTo(_text);

        _animation.StartTime = 1000;
        _animation.EndTime = 1500;
        _animation.TargetProperty = "ScaleX";
        _animation.Destination = 3.0f;
        _animation.AnimateBy(_text);

        _animation.StartTime = 1500;
        _animation.EndTime = 2000;
        _animation.TargetProperty = "ScaleY";
        _animation.Destination = 4.0f;
        _animation.AnimateBy(_text);

        _animation.EndAction = Animation.EndActions.Discard;

        // Connect the signal callback for animaiton finished signal
        _animation.Finished += AnimationFinished;

        // Play the _animation
        _animation.Play();

      }
    }

    public void MainLoop()
    {
      _application.MainLoop ();
    }

    /// <summary>
    /// The main entry point for the application.
    /// </summary>
    [STAThread]
    static void Main(string[] args)
    {
      Console.WriteLine ("Main() called!");

      Example example = new Example(Application.NewApplication());
      example.MainLoop ();
    }
  }
}