Source/DocumentDock/DocumentDockUIManager.cs

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using System;
using System.Windows.Forms;
using System.Drawing;
using System.Xml;

namespace DevComponents.DotNetBar
{
	/// <summary>
	/// Represents class that manages document docking UI interaction.
	/// </summary>
	public class DocumentDockUIManager
	{
		#region Private Variables, Constructor
		private DocumentDockContainer m_DocumentDockContainer=null;
		private Cursor m_ContainerCursor=null;
		private DockSite m_Container=null;
		private Point m_MouseDownPoint=Point.Empty;
		private bool m_ResizePreview=false;
		private Form m_Splitter=null;
		private DocumentDockContainer m_ResizeDockContainer=null;
		private DocumentBaseContainer m_ResizeDocument=null;
		private int m_SplitterWidth=3;
		private bool m_LoadingLayout=false;

		public DocumentDockUIManager(DockSite container)
		{
			m_Container=container;
		}
		#endregion

		#region Properties
		/// <summary>
		/// Gets or sets the root document dock container object.
		/// </summary>
		public DocumentDockContainer RootDocumentDockContainer
		{
			get {return m_DocumentDockContainer;}
			set {m_DocumentDockContainer=value;}
		}

		/// <summary>
		/// Gets or sets the container of the document. 
		/// </summary>
		public DockSite Container
		{
			get {return m_Container;}
			set {m_Container=value;}
		}
		#endregion

		#region Methods
		/// <summary>
		/// Estimates the docking position and size of a given bar for outline purposes during drag&drop
		/// </summary>
		/// <param name="bar">Bar to find estimated docking position and size for</param>
		/// <param name="pDockInfo">Docking information</param>
		/// <returns>Preview Rectangle in screen coordinates.</returns>
		internal Rectangle GetDockPreviewRectangle(Bar bar, ref DockSiteInfo dockInfo)
		{
			DocumentBaseContainer referenceDoc=GetDocumentFromBar(dockInfo.MouseOverBar);