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

namespace Volian.Controls.Library
{
	public partial class DisplayTabControl : UserControl
	{
		private Dictionary<string, DisplayTabItem> _MyPages;
		public event DisplayPanelEvent ItemClick;
		private List<DisplayTabItem> _RemovedItems = null;
		internal void OnItemClick(object sender, DisplayPanelEventArgs args)
		{
			if (ItemClick != null) ItemClick(sender, args);
		}
		public event DisplayPanelLinkEvent LinkModifyTran;
		internal void OnLinkModifyTran(object sender, DisplayLinkEventArgs args)
		{
			if (LinkModifyTran != null) LinkModifyTran(sender, args);
			else MessageBox.Show(args.LinkInfo.LinkText, "Unhandled Link Modify Tran", MessageBoxButtons.OK, MessageBoxIcon.Information);
		}
		public event DisplayPanelLinkEvent LinkModifyRO;
		internal void OnLinkModifyRO(object sender, DisplayLinkEventArgs args)
		{
			if (LinkModifyRO != null) LinkModifyRO(sender, args);
			else MessageBox.Show(args.LinkInfo.LinkText, "Unhandled Link Modify RO", MessageBoxButtons.OK, MessageBoxIcon.Information);
		}
		public event DisplayPanelEvent ItemSelectedChanged;
		internal void OnItemSelectedChanged(object sender, DisplayPanelEventArgs args)
		{
			if (ItemSelectedChanged != null) ItemSelectedChanged(sender, args);
		}
		public DisplayTabControl()
		{
			InitializeComponent();
			SetUp();
		}
		private void SetUp()
		{
			_RemovedItems = new List<DisplayTabItem>();
			Dock = DockStyle.Fill;
			dotNetBarManager1.Style = DevComponents.DotNetBar.eDotNetBarStyle.Office2007;
			_MyPages = new Dictionary<string, DisplayTabItem>();
			SetupBar(_MyBar);
			dotNetBarManager1.BarTearOff += new EventHandler(dotNetBarManager1_BarTearOff);
		}
		void dotNetBarManager1_BarTearOff(object sender, EventArgs e)
		{
			Bar myBar = sender as Bar;
			myBar.Enter += new EventHandler(myBar_Enter);
		}
		private void SetupBar(Bar myBar)
		{
			if (myBar.DockTabControl != null)
			{
				myBar.DockTabControl.CloseButtonOnTabsVisible = true;
				myBar.DockTabControl.CloseButtonVisible = false;
				myBar.DockTabControl.CloseButtonPosition = DevComponents.DotNetBar.eTabCloseButtonPosition.Right;
				myBar.DockTabControl.Width = ClientRectangle.Width;
			}
			myBar.DockTabClosing += new DockTabClosingEventHandler(myBar_DockTabClosing);
			if (!myBar.Visible)
				myBar.Visible = true;
			myBar.RecalcLayout();
		}
		void myBar_Enter(object sender, EventArgs e)
		{
			Bar myBar = sender as Bar;
			myBar.Enter -= new EventHandler(myBar_Enter);
			SetupBar(sender as Bar);
		}
		void myBar_DockTabClosing(object sender, DockTabClosingEventArgs e)
		{
			e.RemoveDockTab = true;
			_RemovedItems.Add((DisplayTabItem)e.DockContainerItem);
			DisplayTabItem myTabItem = e.DockContainerItem as DisplayTabItem;
			if (myTabItem != null)
			{
				if (myTabItem.MyDSOTabPanel != null)
				{
					myTabItem.MyDSOTabPanel.CloseDSO();
				}
			}
			if (((Bar)sender).Items.Count == 1)// Remove bar if last item is closed...
			{
				Bar bar = sender as Bar;
				if (bar != null)
				{
					if(dotNetBarManager1.Bars.Contains(bar.Name))
						dotNetBarManager1.Bars.Remove(bar);
					ActivateRemainingTab();
				}
			}
		}
		private void ActivateRemainingTab()
		{
			foreach (Bar myBar in dotNetBarManager1.Bars)
			{
				if (myBar.DockSide == eDockSide.Document && myBar.Visible)
				{
					if (myBar.SelectedDockContainerItem != null)
					{
						myBar.SelectedDockContainerItem.Selected = true;
					}
				}
			}
			// No Document Tabs Remaining - need to raise OnItemSelectedChanged
			OnItemSelectedChanged(this, null);
		}
		private int _UniqueBarCount;
		public DevComponents.DotNetBar.Bar MyBar
		{
			get { return _MyBar; }
		}
		public DisplayTabItem SelectedTab
		{
			get { return (DisplayTabItem)_MyBar.SelectedDockContainerItem; }
			set 
			{
				if (value != null)
				{
					value.Focus();
					value.Selected = true;
				}
			}
		}
		public DisplayTabItem OpenItem(ItemInfo myItem)
		{
			while (_RemovedItems.Count > 0)
			{
				DisplayTabItem myTabItem = _RemovedItems[0];
				_RemovedItems.RemoveAt(0);
				RemoveItem(myTabItem);
			}
			_MyBar = GetParentBar(myItem);
			if (myItem.MyContent.MyEntry == null)
				return OpenDisplayTabPage(myItem);
			else
				return OpenDSOTabPage(myItem);
		}
		private Bar GetParentBar(ItemInfo myItem)
		{
			Bar myBar = null;
			foreach (Bar b in dotNetBarManager1.Bars)
			{
				if (b.DockSide == eDockSide.Document && b.Visible)
				{
					if(myBar == null)myBar = b;
					foreach (object itm in b.Items)
					{
						DisplayTabItem myTabItem = itm as DisplayTabItem;
						if (myTabItem != null && myTabItem.MyTabPanel != null)
							if (myTabItem.MyTabPanel.MyItem.ItemID == myItem.MyProcedure.ItemID)
								return b;
					}
				}
			}
			if (myBar == null)
			{
				// If no documents bars found, create new one
				_UniqueBarCount++;
				myBar = BarUtilities.CreateDocumentBar();
				myBar.DockTabClosing +=new DockTabClosingEventHandler(myBar_DockTabClosing);
				myBar.Name = "barDocuments" + _UniqueBarCount.ToString();
				fillDocDockSite.GetDocumentUIManager().Dock(myBar);
				SetupBar(myBar);
			}
			return myBar;
		}
		private DisplayTabItem OpenDisplayTabPage(ItemInfo myItem)
		{
			ItemInfo proc = myItem.MyProcedure; // Find procedure Item
			string key = "Item - " + proc.ItemID.ToString();
			DisplayTabItem pg = null;
			if (_MyPages.ContainsKey(key)) // If Procedure Open use it
			{
				pg = _MyPages[key];
				pg.Selected = true;
				SelectedTab = pg;
			}
			else
			{
				pg = new DisplayTabItem(this.components, this, proc, key); // Open a new Procedure Tab
				_MyPages.Add(key, pg);
				pg.Selected = true;
				SelectedTab = pg;
				pg.MyTabPanel.MyItem = proc;
			}
			Application.DoEvents();
			pg.ItemSelected = myItem; // Select the item
#if (DEBUG)
			pg.MyTabPanel.MyPanel.BackColor = SystemColors.Control;
#else
			pg.MyTabPanel.MyPanel.BackColor = Color.White;
#endif
			return pg;
		}
		internal void RemoveItem(DisplayTabItem myItem)
		{
			_MyPages.Remove(myItem.MyKey);
			// Can I dispose the Panel
			if(myItem.MyTabPanel!=null)
				myItem.MyTabPanel.Dispose();
			if (myItem.MyDSOTabPanel != null)
				myItem.MyDSOTabPanel.CloseDSO();
			components.Remove(myItem);
			myItem.Dispose();
		}
		private DisplayTabItem OpenDSOTabPage(ItemInfo myItem)
		{
			DisplayTabItem pg = null;
			EntryInfo myEntry = myItem.MyContent.MyEntry;
			string key = "Doc - " + myEntry.DocID;
			if (_MyPages.ContainsKey(key)) // If Procedure Open use it
				pg = _MyPages[key];
			else
			{
				if (DSOTabPanel.Count > 18)
				{
					MessageBox.Show("Too many Word Documents Open.  Please close one of the Documents before attempting to open another");
					return null;
				}
				pg = new DisplayTabItem(this.components, this, myItem,key); // Open a new Procedure Tab
				_MyPages.Add(key, pg);
			}
			SelectedTab = pg;
			return pg;
		}
	}
}