//
// TestWidget.cs
//
// Author:
//       Jean-Philippe Bruyère <jp.bruyere@hotmail.com>
//
// Copyright (c) 2013-2017 Jean-Philippe Bruyère
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
using System;

namespace Crow
{
	public class TestWidget : GraphicObject
	{
		double angle = 0.0;

		public TestWidget ():base()
		{
		}
			
		protected override void onDraw (Cairo.Context gr)
		{
			Rectangle r = ClientRectangle;

			double radius = Math.Min (r.Width / 2, r.Height / 2) - 5;

			gr.SetSourceRGBA (1.0, 0, 0, 1.0);
			gr.LineWidth = 10;
			gr.Arc (r.Width / 2, r.Height / 2, radius, angle, angle +0.5);
			gr.Stroke ();

			if (angle > 2.0 * Math.PI)
				angle = 0.0;
			else
				angle += 0.08;
			
			RegisterForGraphicUpdate ();
		}
	}
}