Source/ExplorerBarContainerItem.cs

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using System;
using System.Drawing;

namespace DevComponents.DotNetBar
{
	/// <summary>
	/// Provides layout for Explorer-Bar control.
	/// </summary>
	[System.ComponentModel.ToolboxItem(false),System.ComponentModel.DesignTimeVisible(false)]
	public class ExplorerBarContainerItem:ImageItem,IDesignTimeProvider
	{
		#region Internal Implementation
		internal int m_ItemSpacing=15;
		/// <summary>
		/// Creates new instance of ExplorerBarContainerItem class.
		/// </summary>
		public ExplorerBarContainerItem()
		{
			m_IsContainer=true;
			m_SystemItem=true;
			m_SupportedOrientation=eSupportedOrientation.Horizontal;
			m_AllowOnlyOneSubItemExpanded=false;
		}
		/// <summary>
		/// Returns copy of ExplorerBarContainerItem item
		/// </summary>
		public override BaseItem Copy()
		{
			ExplorerBarContainerItem objCopy=new ExplorerBarContainerItem();
			this.CopyToItem(objCopy);
			return objCopy;
		}
		protected override void CopyToItem(BaseItem copy)
		{
			ExplorerBarContainerItem objCopy=copy as ExplorerBarContainerItem;
			base.CopyToItem(objCopy);
		}

		/// <summary>
		/// Gets or sets a value indicating whether the item is expanded or not. For Popup items this would indicate whether the item is popped up or not.
		/// </summary>
		[System.ComponentModel.Browsable(false),System.ComponentModel.DefaultValue(false),System.ComponentModel.DesignerSerializationVisibility(System.ComponentModel.DesignerSerializationVisibility.Hidden)]
		public override bool Expanded
		{
			get
			{
				return base.Expanded;
			}
			set
			{
				if(!value)
				{
					foreach(BaseItem item in m_SubItems)
					{
						if(item is ExplorerBarGroupItem)
						{
							foreach(BaseItem popup in item.SubItems)
							{
								if(popup is PopupItem && item.Expanded)
									popup.Expanded=false;