using System;
using System.ComponentModel;
using System.Collections.Generic;
using System.Diagnostics;
using System.Text;
using System.Drawing;
using System.Windows.Forms;
using VEPROMS.CSLA.Library;
using Volian.Controls.Library;


namespace Volian.Controls.Library
{
	public partial class DSOTabPanel : DevComponents.DotNetBar.PanelDockContainer
	{
		#region Private Fields
		private DisplayTabControl _MyDisplayTabControl;
		private static readonly log4net.ILog _MyLog = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
		private AxDSOFramer.AxFramerControl _MyDSOFramer;
		private TransparentPanel _MyTransparentPanel;
		private static int _Count = 0;
		private DocumentInfo _MyDocumentInfo;
		private int _MyCount;
		private DisplayTabItem _MyDisplayTabItem;
		private DSOFile _DSOFile;
		#endregion
		#region Public Properties
		/// <summary>
		/// Count of DSO Pages open.  Limited to 18 in DisplayTabControl
		/// </summary>
		public static int Count
		{
			get { return _Count; }
			set { _Count = value; }
		}
		/// <summary>
		/// Pointer to the related DisplayTabItem
		/// </summary>
		public DisplayTabItem MyDisplayTabItem
		{
			get { return _MyDisplayTabItem; }
			set { _MyDisplayTabItem = value; }
		}
		/// <summary>
		/// DocumentInfo record for the Word document
		/// </summary>
		public DocumentInfo MyDocumentInfo
		{
			get { return _MyDocumentInfo; }
		}
		/// <summary>
		/// Temporary Word file used for editing.
		/// </summary>
		internal DSOFile MyDSOFile
		{
			get
			{
				if (_DSOFile == null)
					_DSOFile = new DSOFile(_MyDocumentInfo);
				return _DSOFile;
			}
		}
		/// <summary>
		/// Dirty status.  Only saved if dirty.
		/// </summary>
		public bool IsDirty
		{
			get { return _MyDSOFramer.IsDirty; }
		}
		#endregion
		//private frmPG _frm = null;
		#region Constructors
		public DSOTabPanel(DocumentInfo documentInfo, DisplayTabControl myDisplayTabControl)
		{
			_MyDisplayTabControl = myDisplayTabControl;
			InitializeComponent();
			SetupDSOTabPanel();
			_MyDocumentInfo = documentInfo;
			SetupDSO();
			//_frm = new frmPG(_MyDSOFramer);
			//_frm.Show();
		}
		#endregion
		#region Private Methods
		private void SetupDSOTabPanel()
		{
			Dock = System.Windows.Forms.DockStyle.Fill; // Automatically Fill the panel
		}
		private void SetupDSO()
		{
			_Count++; // Increment the count of open Word documents (Limit in DisplayTabControl)
			_MyCount = _Count;
			this._MyTransparentPanel = new TransparentPanel();
			this._MyDSOFramer = new AxDSOFramer.AxFramerControl();
			((System.ComponentModel.ISupportInitialize)(this._MyDSOFramer)).BeginInit();
			this.Controls.Add(this._MyDSOFramer);
			this.Controls.Add(this._MyTransparentPanel); // A transparent panel is added over top of the DSO Framer window so that
			// the related tab can be activated when the user clicks on a Word Document.  Since the Word document is actually running
			// in a different thread, it does not behave properly with focus events.
			this.components.Add(this._MyDSOFramer);
			this.components.Add(this._MyTransparentPanel);
			this._MyTransparentPanel.Dock = System.Windows.Forms.DockStyle.Fill;
			this._MyTransparentPanel.Font = new System.Drawing.Font("Tahoma", 14.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
			this._MyTransparentPanel.ForeColor = System.Drawing.Color.Brown; // This is the color used to show InActive on the right side on the Word
			// document menu line.
			//this._MyTransPanel.Location = new System.Drawing.Point(0, 0);
			//this._MyTransPanel.Name = "transPanel1";
			//this._MyTransPanel.Size = new System.Drawing.Size(370, 423);
			//this._MyTransPanel.TabIndex = 1;
			this._MyTransparentPanel.Click += new EventHandler(_MyTransparentPanel_Click);
			this._MyDSOFramer.Dock = System.Windows.Forms.DockStyle.Fill;
			//System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(WordDSOTab));
			//this._DSOFramer.OcxState = ((System.Windows.Forms.AxHost.State)(resources.GetObject("_FC.OcxState")));
			((System.ComponentModel.ISupportInitialize)(this._MyDSOFramer)).EndInit();
			this._MyDSOFramer.Open(MyDSOFile.MyFile.FullName);
			this._MyDSOFramer.Menubar = false;
			this._MyDSOFramer.Titlebar = false;
			//if (_MyCount < 20)
			//	this._MyDSOFramer.FrameHookPolicy = DSOFramer.dsoFrameHookPolicy.dsoResetNow;
			this._MyDSOFramer.BeforeDocumentClosed += new AxDSOFramer._DFramerCtlEvents_BeforeDocumentClosedEventHandler(_MyDSOFramer_BeforeDocumentClosed);
			this._MyDSOFramer.OnSaveCompleted += new AxDSOFramer._DFramerCtlEvents_OnSaveCompletedEventHandler(_MyDSOFramer_OnSaveCompleted);
			//this._MyDSOFramer.OnActivationChange += new AxDSOFramer._DFramerCtlEvents_OnActivationChangeEventHandler(_MyDSOFramer_OnActivationChange);
			this.Enter += new EventHandler(DSOTabPanel_Enter);
			this.Leave += new EventHandler(DSOTabPanel_Leave);
			//this.GotFocus += new EventHandler(DSOTabPanel_GotFocus);
			//this.LostFocus += new EventHandler(DSOTabPanel_LostFocus);
		}
		//void DSOTabPanel_LostFocus(object sender, EventArgs e)
		//{
		//  vlnStackTrace.ShowStack("DSOTabPanel_LostFocus {0} DocID {1} Index {2} {3}", _In_DSOTabPanel_Enter, this._MyDocumentInfo.DocID, _MyDisplayTabControl.MyBar.SelectedDockTab, sender.GetType().FullName);
		//}
		//void DSOTabPanel_GotFocus(object sender, EventArgs e)
		//{
		//  vlnStackTrace.ShowStack("DSOTabPanel_GotFocus {0} DocID {1} Index {2} {3}", _In_DSOTabPanel_Enter, this._MyDocumentInfo.DocID, _MyDisplayTabControl.MyBar.SelectedDockTab, sender.GetType().FullName);
		//}
		#endregion
		#region Event Handlers
		/// <summary>
		/// When the  user leaves a Word document, place the transparent frame on top with the words "InActive" in the upper right
		/// </summary>
		/// <param name="sender"></param>
		/// <param name="e"></param>
		void DSOTabPanel_Leave(object sender, EventArgs e)
		{
			//vlnStackTrace.ShowStack("DSOTabPanel_Leave {0} DocID {1} Index {2} {3}", _In_DSOTabPanel_Enter, this._MyDocumentInfo.DocID, _MyDisplayTabControl.MyBar.SelectedDockTab, sender.GetType().FullName);
			_MyTransparentPanel.BringToFront();
		}
		/// <summary>
		/// Force this item to be selected when the transparent window is clicked.
		/// </summary>
		/// <param name="sender"></param>
		/// <param name="e"></param>
		void _MyTransparentPanel_Click(object sender, EventArgs e)
		{
			this.Select();
		}
		/// <summary>
		/// If the user presses the save button, tell the file to save it's contents to the database
		/// </summary>
		/// <param name="sender"></param>
		/// <param name="e"></param>
		void _MyDSOFramer_OnSaveCompleted(object sender, AxDSOFramer._DFramerCtlEvents_OnSaveCompletedEvent e)
		{
			MyDSOFile.SaveFile();
		}
		/// <summary>
		/// Before a document closes check to see if it's contents should be saved.
		/// </summary>
		/// <param name="sender"></param>
		/// <param name="e"></param>
		void _MyDSOFramer_BeforeDocumentClosed(object sender, AxDSOFramer._DFramerCtlEvents_BeforeDocumentClosedEvent e)
		{
			try
			{
				this.Enter -= new EventHandler(DSOTabPanel_Enter);
				this.Leave -= new EventHandler(DSOTabPanel_Leave);
				SaveDirty();
			}
			catch (Exception ex)
			{
				_MyLog.Warn("Before Closing Document ", ex);
			}
		}
		public static bool IgnoreEnter = false;
		private bool _In_DSOTabPanel_Enter=false;
		/// <summary>
		/// When a Word document is selected make sure it's tab is activated and 
		/// the SelectedItem for the DisplayTabControl is updated.
		/// </summary>
		/// <param name="sender"></param>
		/// <param name="e"></param>
		void DSOTabPanel_Enter(object sender, EventArgs e)
		{
			if (IgnoreEnter) return;
			_MyTransparentPanel.SendToBack();
			try
			{
				_MyDSOFramer.EventsEnabled = true;
				_MyDSOFramer.FrameHookPolicy = DSOFramer.dsoFrameHookPolicy.dsoResetNow;
			}
			catch (Exception ex)
			{
				if (_MyLog.IsErrorEnabled) _MyLog.ErrorFormat("DSOTabPage_Enter", ex);
			}
			if (_In_DSOTabPanel_Enter) return;
			vlnStackTrace.ShowStack("DSOTabPanel_Enter {0} DocID {1} Index {2} {3}",_In_DSOTabPanel_Enter, this._MyDocumentInfo.DocID, _MyDisplayTabControl.MyBar.SelectedDockTab, sender.GetType().FullName);
			_In_DSOTabPanel_Enter = true;
			_MyDisplayTabControl.OnItemSelectedChanged(this,new ItemSelectedChangedEventArgs(MyDisplayTabItem.MyItemInfo));
			_MyDSOFramer.Focus();
			_In_DSOTabPanel_Enter = false;
		}
		#endregion
		#region Public Methods
		/// <summary>
		/// Save the contents of the Word Document to a file
		/// and save the file to the database
		/// </summary>
		/// <returns></returns>
		public bool SaveDSO()
		{
			bool result = true;
			try
			{
				_MyDSOFramer.Save();
				MyDSOFile.SaveFile();
			}
			catch (Exception ex)
			{
				if (_MyLog.IsErrorEnabled) _MyLog.Error("SaveDSO", ex);
				result = false;
			}
			return result;
		}
		/// <summary>
		/// Check to see if a Word document should be saved.  If it is dirty ask the user if the
		/// changes should be changed.  Save the changes if the user says "yes".
		/// </summary>
		/// <returns></returns>
		public bool SaveDirty()
		{
			if (_MyDSOFramer.IsDirty)
			{
				// TODO: Should be based upon Item rather than Document.
				if (MessageBox.Show("Save changes to " + _MyDisplayTabItem.MyItemInfo.TabTitle + "\r\n" + _MyDisplayTabItem.MyItemInfo.TabToolTip, "Document has Changed", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
					return SaveDSO();
				return false;
			}
			return true;
		}
		/// <summary>
		/// Cleans-up the DSO Framer window
		/// </summary>
		/// <returns></returns>
		public bool CloseDSO()
		{
			return CloseDSO(false);
		}
		/// <summary>
		/// Cleans-up the DSO Framer window
		/// </summary>
		/// <param name="force"></param>
		/// <returns></returns>
		public bool CloseDSO(bool force)
		{
			_MyLog.Debug("CloseDSO");
			bool result = true;
			try
			{
				_MyDSOFramer.Close();
				Controls.Remove(_MyDSOFramer);
				components.Remove(_MyDSOFramer);
				_MyDSOFramer.Dispose();
				_MyDSOFramer = null;
				_Count--;
			}
			catch (Exception ex)
			{
				if (_MyLog.IsErrorEnabled) _MyLog.Error("SaveDSO - " + this.Name, ex);
				result = false;
			}
			return result;
		}
		/// <summary>
		/// Activates the current DSO Framer window (Word)
		/// </summary>
		public void Activate()
		{
			try
			{
				this._MyDSOFramer.Activate();
				if (_MyCount < 20)
					this._MyDSOFramer.FrameHookPolicy = DSOFramer.dsoFrameHookPolicy.dsoResetNow;
			}
			catch (Exception ex)
			{
				if (_MyLog.IsErrorEnabled) _MyLog.Error("Activate", ex);
			}
		}
		#endregion
	}
}