using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;

namespace Microsoft.Research.DynamicDataDisplay.Charts
{
	public static class BackgroundRenderer
	{
		#region RenderingFinished event

		public static readonly RoutedEvent RenderingFinished = EventManager.RegisterRoutedEvent(
			"RenderingFinished",
			RoutingStrategy.Bubble,
			typeof(RoutedEventHandler),
			typeof(BackgroundRenderer));

		public static void RaiseRenderingFinished(FrameworkElement eventSource)
		{
			eventSource.RaiseEvent(new RoutedEventArgs(RenderingFinished));
		}

		#endregion

		#region RenderingState property

		public static RenderingState GetRenderingState(DependencyObject obj)
		{
			return (RenderingState)obj.GetValue(RenderingStateProperty);
		}

		public static void SetRenderingState(DependencyObject obj, RenderingState value)
		{
			obj.SetValue(RenderingStateProperty, value);
		}

		public static readonly DependencyProperty RenderingStateProperty = DependencyProperty.RegisterAttached(
		  "RenderingState",
		  typeof(RenderingState),
		  typeof(BackgroundRenderer),
		  new FrameworkPropertyMetadata(RenderingState.DuringRendering));

		#endregion RenderingState property

		#region UpdateRequestedEvent

		public static readonly RoutedEvent UpdateRequested = EventManager.RegisterRoutedEvent(
			"UpdateRequested",
			RoutingStrategy.Bubble,
			typeof(RoutedEventHandler),
			typeof(BackgroundRenderer));

		public static void RaiseUpdateRequested(FrameworkElement eventSource)
		{
			eventSource.RaiseEvent(new RoutedEventArgs(UpdateRequested));
		}

		#endregion

		#region UsesBackgroundRendering

		public static bool GetUsesBackgroundRendering(DependencyObject obj)
		{
			return (bool)obj.GetValue(UsesBackgroundRenderingProperty);
		}

		public static void SetUsesBackgroundRendering(DependencyObject obj, bool value)
		{
			obj.SetValue(UsesBackgroundRenderingProperty, value);
		}

		public static readonly DependencyProperty UsesBackgroundRenderingProperty = DependencyProperty.RegisterAttached(
		  "UsesBackgroundRendering",
		  typeof(bool),
		  typeof(BackgroundRenderer),
		  new FrameworkPropertyMetadata(false));

		#endregion // end of UsesBackgroundRendering
	}

	public enum RenderingState
	{
		DuringRendering,
		RenderingFinished
	}
}