using System;
using System.Diagnostics;
using CPF.ReoGrid.Interaction;

namespace CPF.ReoGrid.Drawing
{
	[Serializable]
	public abstract class SelectableFloatingObject : FloatingObject, IUserVisual, ISelectableVisual
	{
		public abstract void Invalidate();

		//[DebuggerBrowsable(DebuggerBrowsableState.Never)]
		public event EventHandler SelectionChanged;

		public virtual bool IsSelected
		{
			get
			{
				return this.isSelected;
			}
			set
			{
				bool flag = this.isSelected != value;
				if (flag)
				{
					this.isSelected = value;
					bool flag2 = this.isSelected;
					if (flag2)
					{
						this.OnSelect();
					}
					else
					{
						this.OnDeselect();
					}
					this.Invalidate();
				}
			}
		}

		public virtual void OnSelect()
		{
			bool flag = this.SelectionChanged != null;
			if (flag)
			{
				this.SelectionChanged(this, null);
			}
		}

		public virtual void OnDeselect()
		{
			bool flag = this.SelectionChanged != null;
			if (flag)
			{
				this.SelectionChanged(this, null);
			}
		}

		private bool isSelected;
	}
}