using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Text;
using System.Text.RegularExpressions;
using System.Windows.Forms;
using System.Xml;
using VEPROMS.CSLA.Library;
using Volian.Base.Library;
using C1.Win.C1FlexGrid;

namespace Volian.Controls.Library
{
	public partial class GridItem : EditItem
	{
		/*
		 * TODO: (2/16/11)
		 *  1) KBR Need to include/handle StepRTB/EditItem Events: Add for grid items, the events that
		 *     are handled by StepRTB/EditItem.  Should these be abstract events within EditItem so
		 *     that it 'tells' you which events you need.
		 *     May Need yet:
		 *			OnOpenContextMenu  (grid and/or rtb)
		 *          OnSetMenu?? - related to context menu
		 *  2) KBR ContextMenu for table.  May want it to function in a similar way to spellcheck, with 
		 *     the contentmenu to support table options and a last item that supports existing 
		 *     contextmenu
		 *  3) When data migration of tables, need to include the font if there is a symbol. Move
		 *     AddFontTable from StepRTB.cs to a place accessible, such as volian.base. And then
		 *     in data migration, will need to know if a font is fixed.
		 *  4) KBR Paste step crashes.  Look at when doing insert.
		 */
		#region Fields
		public VlnFlexGrid MyFlexGrid
		{
			get { return _MyFlexGrid; }
			set { _MyFlexGrid = value; }
		}
		private int _GridMargin = 11;
		/// <summary>
		/// Margin between the EditItem and the VlnFlexGrid.  Appears on the Right.
		/// Will allow space to draw a Change Bar on the right side of the EditItem.
		/// </summary>
		public int GridMargin
		{
			get { return _GridMargin; }
			set { _GridMargin = value; }
		}
		#endregion
		
		#region Event Handlers
		/// <summary>
		/// Raises an ItemClick event when the user clicks on the Tab
		/// </summary>
		/// <param name="sender"></param>
		/// <param name="e"></param>
		private void lblTab_MouseDown(object sender, MouseEventArgs e)
		{
			MyStepPanel.OnItemClick(this, new StepPanelEventArgs(this, e));
		}
		void MyFlexGrid_Resize(object sender, EventArgs e)
		{
			if (MyItemInfo != null && MyItemInfo.ItemID == 14)
			{
				//Console.WriteLine("{0},{1},{2}", MyFlexGrid.Height, MyStepRTB.ContentsRectangle.Height,MyFlexGrid.Rows[0].Height);
				if (MyFlexGrid.Height < MyStepRTB.ContentsRectangle.Height)
					MyFlexGrid.Height = 4 + MyStepRTB.ContentsRectangle.Height;
			}
			this.Size = new Size(MyFlexGrid.Width + GridMargin, MyFlexGrid.Height + GridMargin);
			AdjustTableWidthAndLocation();
			AdjustLocation();
		}
		void MyFlexGrid_Enter(object sender, EventArgs e)
		{
			if (MyStepPanel.DisplayItemChanging) return;
			MyStepRTB.MyItemInfo = MyItemInfo;  // should be in vlnFlexGrid
			MyStepPanel.SelectedEditItem = this;
		}
		void MyFlexGrid_KeyDown(object sender, KeyEventArgs e)
		{
			switch (e.KeyCode)
			{
				case Keys.Left:
					if (e.Shift) return;
					MyStepRTB.StepRTB_ArrowPressed(e.Control ? E_ArrowKeys.CtrlLeft : E_ArrowKeys.Left);
					e.Handled = true;
					break;
				case Keys.Up:
					if (e.Shift) return;
					MyStepRTB.StepRTB_ArrowPressed(e.Control ? E_ArrowKeys.CtrlUp : E_ArrowKeys.Up);
					e.Handled = true;
					break;
				case Keys.Right:
					if (e.Shift) return;
					MyStepRTB.StepRTB_ArrowPressed(e.Control ? E_ArrowKeys.CtrlRight : E_ArrowKeys.Right);
					e.Handled = true;
					break;
				case Keys.Down:
					if (e.Shift) return;
					MyStepRTB.StepRTB_ArrowPressed(e.Control ? E_ArrowKeys.CtrlDown : E_ArrowKeys.Down);
					e.Handled = true;
					break;
				case Keys.F5:
					if (e.Shift)
					{
						e.Handled = true;
						if (!CheckClipboard()) return;  // check if 'clipboard' contains a step.
						SetMenu("StepPaste");
					}
					else if (!e.Control && !e.Alt)
					{
						e.Handled = true;
						CopyStep();
					}
					break;
			}
		}
		void SetMenu(string contentMenu)
		{
			if (contentMenu == null)
				MyStepPanel.MyStepTabPanel.MyStepTabRibbon.ClearContextMenu();
			else if (contentMenu == "OpenContextMenu")
				MyStepPanel.MyStepTabPanel.MyStepTabRibbon.SetContextMenu();
			else
				MyStepPanel.MyStepTabPanel.MyStepTabRibbon.SetShortCutContextMenu(contentMenu);
		}
		void MyFlexGrid_CursorMovement(object sender, VlnFlexGridCursorMovementEventArgs args)
		{
			MyStepPanel.CursorMovement(this,new Point(0,0), args.Key);
		}
		void MyStepRTB_LinkModifyTran(object sender, StepPanelLinkEventArgs args)
		{
			MyStepPanel.OnLinkModifyTran(sender, args);
		}
		void MyStepRTB_LinkModifyRO(object sender, StepPanelLinkEventArgs args)
		{
			MyStepPanel.OnLinkModifyRO(sender, args);
		}
		void MyStepRTB_LinkGoTo(object sender, StepPanelLinkEventArgs args)
		{
			MyStepPanel.OnLinkClicked(sender, args);
		}
		void MyStepRTB_CursorKeyPress(object sender, KeyEventArgs args)
		{
			MyStepPanel.StepCursorKeys(this, args);
		}
		void MyStepRTB_AdjustTableWidth(object sender, StepRTBTableWidthEventArgs args)
		{
			//if ((!_MyItemInfo.IsSection && !_MyItemInfo.IsProcedure) && (_MyItemInfo.IsTable || _MyItemInfo.IsFigure))
			if (args.EditMode)
			{
				int colR = MyStepPanel.ToDisplay(MyStepSectionLayoutData.ColRTable, MyItemInfo.ColumnMode);
				int widS = /* _WidthAdjust + borderWidth + */ MyStepPanel.ToDisplay(MyStepSectionLayoutData.WidSTableEdit, MyItemInfo.ColumnMode);
				int wNew = 70 + widS + colR * MyItemInfo.ColumnMode;
				if (wNew > ItemWidth)
				{
					ItemWidth = wNew;
					ItemLocation = TableLocation(MyParentEditItem, MyStepSectionLayoutData, wNew);
				}
			}
			else
			{
				int newwidth = MyFlexGrid.Width;
				if (ItemWidth != newwidth)
				{
					ItemWidth = newwidth;
					ItemLocation = TableLocation(MyParentEditItem, MyStepSectionLayoutData, newwidth);
				}
			}
		}
		bool MyStepRTB_IsNotCurrentSelection(object sender, EventArgs args)
		{
			return MyStepPanel.SelectedEditItem != this;
		}

		void MyStepRTB_OpenAnnotations(object sender, EventArgs args)
		{
			OpenAnnotations();
		}
		void MyFlexGrid_OpenAnnotations(object sender, EventArgs args)
		{
			OpenAnnotations();
		}
		void MyStepRTB_DoMouseWheel(object sender, MouseEventArgs args)
		{
			DoMouseWheel(args);
		}
		void MyStepRTB_DoSaveContents(object sender, EventArgs args)
		{
			if (MyFlexGrid.Row >= 0 && MyFlexGrid.Col >= 0) // Only if a Cell is Selected
				MyFlexGrid[MyFlexGrid.Row, MyFlexGrid.Col] = MyStepRTB.Rtf = MyStepRTB.DoNewLinkInGridCell();
			SaveContents();
		}
		void MyStepRTB_VisibleChanged(object sender, EventArgs e)
		{
			MyStepRTB.EditMode = MyStepRTB.Visible;
			//Console.WriteLine("GridItem: EditMode = {0}", MyStepRTB.EditMode);
		}
		void MyStepRTB_ReturnToEditor(object sender, EventArgs args)
		{
			MyFlexGrid.Focus();
			MyFlexGrid.StartEditing();
		}
		void MyFlexGrid_Click(object sender, EventArgs e)
		{
			MyFlexGrid.Focus();
		}
		void MyStepRTB_EditModeChanged(object sender, EventArgs args)
		{
			AdjustColorsForEditMode();
		}

		private void AdjustColorsForEditMode()
		{
			if (MyStepRTB.EditMode)
			{
				MyFlexGrid.Styles["Focus"].ForeColor = MyFlexGrid.Styles["Focus"].BackColor =
					MyFlexGrid.Styles["Highlight"].ForeColor = MyFlexGrid.Styles["Highlight"].BackColor = Color.SkyBlue;
			}
			else
			{
				MyFlexGrid.Styles["Focus"].ForeColor = MyFlexGrid.Styles["Highlight"].ForeColor = Color.Black;
				MyFlexGrid.Styles["Focus"].BackColor = MyFlexGrid.Styles["Highlight"].BackColor = Color.LightCyan;
			}
		}
		private string _OrigRtf;		// used to store original rtf to allow for 'escape' key restore
		void MyFlexGrid_SelChange(object sender, EventArgs e)
		{
			RTBLastFocus = false;
			MyStepRTB.Visible = false; // Hide the editor if the Selection Changes
			if (MyFlexGrid.Selection.IsSingleCell && MyFlexGrid.Row >= 0 && MyFlexGrid.Col >= 0)
			{
				object obj = MyFlexGrid[MyFlexGrid.Row, MyFlexGrid.Col];
				_OrigRtf = obj == null ? string.Empty : obj.ToString();
			}
		}
		void MyStepRTB_KeyDown(object sender, KeyEventArgs e)
		{
			if (!e.Control && !e.Shift && !e.Alt && e.KeyCode == Keys.Escape && MyStepRTB.EditMode)
			{
				MyStepRTB.Rtf = _OrigRtf;
				MyFlexGrid.Select(MyFlexGrid.Selection);
			}
		}
		#endregion // Event Handlers
		#region Constructors
		public GridItem()
		{
			InitializeComponent();
		}
		public GridItem(ItemInfo itemInfo, StepPanel myStepPanel, EditItem myParentEditItem, ChildRelation myChildRelation, bool expand)
		{
			InitializeComponent();
			SetupEventHandlers();
			SetupEditItem(itemInfo, myStepPanel, myParentEditItem, myChildRelation, expand, null);
			//RefreshDisplay(true);  //TODO: is the argument true?
		}
		public GridItem(ItemInfo itemInfo, StepPanel myStepPanel, EditItem myParentEditItem, ChildRelation myChildRelation, bool expand, EditItem nextEditItem)
		{
			InitializeComponent();
			SetupEventHandlers();
			SetupEditItem(itemInfo, myStepPanel, myParentEditItem, myChildRelation, expand, nextEditItem);
			//RefreshDisplay(true);	//TODO: is the argument true?
		}
		private void SetupEventHandlers()
		{
			this.MyFlexGrid.Resize += new EventHandler(MyFlexGrid_Resize);
			this.MyFlexGrid.Enter += new EventHandler(MyFlexGrid_Enter);
			this.MyFlexGrid.CursorMovement += new VlnFlexGridCursorMovementEvent(MyFlexGrid_CursorMovement);
			this.MyFlexGrid.OpenAnnotations += new VlnFlexGridEvent(MyFlexGrid_OpenAnnotations);
			this.MyFlexGrid.KeyDown +=new KeyEventHandler(MyFlexGrid_KeyDown);
			this.MyStepRTB.LinkGoTo += new StepRTBLinkEvent(MyStepRTB_LinkGoTo);
			this.MyStepRTB.LinkModifyRO += new StepRTBLinkEvent(MyStepRTB_LinkModifyRO);
			this.MyStepRTB.LinkModifyTran += new StepRTBLinkEvent(MyStepRTB_LinkModifyTran);
			this.MyStepRTB.CursorKeyPress += new StepRTBCursorKeysEvent(MyStepRTB_CursorKeyPress);
			this.MyStepRTB.AdjustTableWidth += new StepRTBTableWidthEvent(MyStepRTB_AdjustTableWidth);
			this.MyStepRTB.IsNotCurrentSelection += new StepRTBBooleanEvent(MyStepRTB_IsNotCurrentSelection);
			this.MyStepRTB.OpenAnnotations += new StepRTBEvent(MyStepRTB_OpenAnnotations);
			this.MyStepRTB.DoMouseWheel += new StepRTBMouseEvent(MyStepRTB_DoMouseWheel);
			this.MyStepRTB.DoSaveContents += new StepRTBEvent(MyStepRTB_DoSaveContents);
			this.MyStepRTB.VisibleChanged += new EventHandler(MyStepRTB_VisibleChanged);
			this.MyStepRTB.ReturnToEditor += new StepRTBEvent(MyStepRTB_ReturnToEditor);
			this.MyFlexGrid.Click += new EventHandler(MyFlexGrid_Click);
			this.MyStepRTB.EditModeChanged += new StepRTBEvent(MyStepRTB_EditModeChanged);
			this.MyStepRTB.KeyDown += new KeyEventHandler(MyStepRTB_KeyDown);
			this.MyFlexGrid.SelChange += new EventHandler(MyFlexGrid_SelChange);
			this.MyStepRTB.GotFocus += new EventHandler(MyStepRTB_GotFocus);
		}
		void MyStepRTB_GotFocus(object sender, EventArgs e)
		{
			RTBLastFocus = true;
		}
		#endregion
		#region Override Method and Properties
		public override int BorderWidth { get { return (MyFlexGrid.Width - MyFlexGrid.ClientRectangle.Width); } }

		public override Point ContentLocation
		{
			get { return new Point(Location.X + MyFlexGrid.Left, Location.Y); }
			set { Location = new Point(value.X - MyFlexGrid.Left, value.Y); }
		}
		public override string TabFormat { get { return _TabFormat; } set { _TabFormat = value; } }
		public override void AdjustTableWidthAndLocation() 
		{
			//_MyStepRTB.Font = MyStepData.Font.WindowsFont;
			//ItemWidth = (int)GetTableWidth(MyStepRTB.Font, MyItemInfo.MyContent.Text, true);
			//ItemWidth = MyFlexGrid.Width;
			ItemLocation = new Point(50, _MyParentEditItem.Bottom);
			ItemLocation = TableLocation(_MyParentEditItem, MyStepSectionLayoutData, ItemWidth);
		}
		public override void SetToolTip(string tip)
		{
			DevComponents.DotNetBar.SuperTooltipInfo tpi = new DevComponents.DotNetBar.SuperTooltipInfo("", "", tip, null, null, DevComponents.DotNetBar.eTooltipColor.Lemon);
			_MyToolTip.MinimumTooltipSize = new Size(0, 24);
			_MyToolTip.TooltipDuration = 3;
			_MyToolTip.SetSuperTooltip(MyStepRTB, tpi);
		}
		public override void RefreshContent() 
		{
			using (Grid myGrid = MyItemInfo.MyContent.MyGrid.Get())
			{
				MyItemInfo.MyContent.MyGrid.ResetContent(myGrid);
			}
			RefreshDisplay(_ActiveMode);
			IdentifyMe(false);
		}
		public override int TableWidth { get { return 0; } }    // DONE
		public override int ItemLeft
		{
			get { return Left + lblTab.Left; }
			set { Left = value - lblTab.Left; }
		}
		public override int ContentLeft { get { return Left + MyFlexGrid.Left; } }
		public override int ContentWidth
		{
			get { return MyFlexGrid.Width; }
			set
			{
				Width = value + lblTab.Left + lblTab.Width;
			}
		}
		public override Point ItemLocation
		{
			get { return new Point(Location.X + lblTab.Left, Location.Y); }
			set { Location = new Point(value.X - lblTab.Left, value.Y); }
		}
		public override int ItemWidth
		{
			get { return Width - lblTab.Left; }
			set
			{
				Width = GridMargin + value + lblTab.Left;
			}
		}
		public override void RefreshOrdinal()
		{
			TabFormat = null; // Reset Tab
		}
		public override bool Expanded
		{
			get {return !Colapsing;}
			set {;}		// Tables are always expanded.
		}
		public override void RefreshTab() { TabFormat = null;}
		public override void SetFocus() { MyFlexGrid.Focus();}
		public override void SaveContents() 
		{
			List<int> RtfRoUsageList = new List<int>();
			List<int> RtfTransList = new List<int>();

			int r = 0;
			int c = 0;
			int w = MyFlexGrid.Cols.Count;
			int h = MyFlexGrid.Rows.Count;

			while (r < h)
			{
				CellRange cr = MyFlexGrid.GetMergedRange(r, c);
				if (cr.r1 == r && cr.c1 == c)
				{
					// see if there are any links and save these so that any deleted ROs or transitions in the
					// steprtb can have associated usages/transitions records removed from the database.
					string lookFor = string.Format(@"<START\](\\[^v \\]+)*\\v0(\\[^v \\]+)* (.*?)(\\[^v \\]+)*\\v(\\[^v \\]+)* #Link:(ReferencedObject|Transition[^:]*?):.*?\[END>");
					MatchCollection matches = Regex.Matches((string)MyFlexGrid[r, c], lookFor);
					for (int i = matches.Count - 1; i >= 0; i--)
					{
						Match m = matches[i];
						if (m != null && m.Groups.Count > 6 && m.Groups[6].ToString() == "ReferencedObject")
						{
							Regex regRefObj = new Regex(@"\#Link\:ReferencedObject\:([0-9]*) ([0-9a-zA-Z]*) ([0-9]*)", RegexOptions.Singleline);
							Match myMatch = regRefObj.Match(m.Value);
							if (myMatch.Success)
							{
								int usgid = int.Parse(myMatch.Groups[1].Value);
								RtfRoUsageList.Add(usgid);
							}
						}
						if (m != null && m.Groups.Count > 6 && m.Groups[6].ToString().StartsWith("Transition"))
						{
							Regex regRefObj = new Regex(@"\#Link\:Transition[a-zA-Z]*\:([0-9]*) ([0-9]*) ([0-9]*)", RegexOptions.Singleline);
							Match myMatch = regRefObj.Match(m.Value);
							if (myMatch.Success)
							{
								int tid = int.Parse(myMatch.Groups[2].Value);
								RtfTransList.Add(tid);
							}
						}
					}
				}
				c = c + 1;
				if (c == w)
				{
					c = 0;
					r = r + 1;
				}
			}
			// compare ro usages & transitions from database and list from grid contents
			//		if in both lists, don't do anything
			//		if only in database list, delete usage.
			//		never will have condition where it is not in database list, but is in steprtb text list (this
			//           case is handled when ro is inserted.
			if (MyItemInfo.MyContent.ContentRoUsages != null)
			{
				List<int> delRoUsgs = new List<int>();
				foreach (RoUsageInfo ru in MyItemInfo.MyContent.ContentRoUsages)
					if (!RtfRoUsageList.Contains(ru.ROUsageID)) delRoUsgs.Add(ru.ROUsageID);
				foreach (int dRU in delRoUsgs) RoUsage.Delete(dRU);
			}
			if (MyItemInfo.MyContent.ContentTransitions != null)
			{
				List<int> delTrans = new List<int>();
				foreach (TransitionInfo ti in MyItemInfo.MyContent.ContentTransitions)
					if (!RtfTransList.Contains(ti.TransitionID)) delTrans.Add(ti.TransitionID);
				foreach (int dt in delTrans) Transition.Delete(dt);
			}

			// now save the resulting Xml text, and the searchable text.
			bool success = FinishSave(MyFlexGrid.GetSearchableText());
			if (success)
			{
				MyStepRTB.FindAllLinks();
				MyStepRTB.OrigRTF = MyStepRTB.Rtf;
				MyStepRTB.ClearUndo();
			}
		}

		private bool FinishSave(string searchableText)
		{
			string xml = MyFlexGrid.GetXMLData();
			using (Item itm = MyItemInfo.Get())
			{
				itm.MyContent.MyGrid.Data = xml;
				itm.MyContent.Text = searchableText;
				// what about the 'config' for ro tables.
				itm.Save();
				MyItemInfo.MyContent.MyGrid.ResetContent(itm.MyContent.MyGrid);
			}
			return true;
		}
		public override bool CanExpand { get { return false; } set { ;} }
		public override void HandleResize() { ;}		// DONE
		public override void MatchExpanded() { ;}		// DONE
		public override void ItemSelect()
		{
			// Was getting an Error that _MyStepRTB was Disposed RHM 20101217
			if (!MyFlexGrid.Disposing)
			{
				Focus();
				MyFlexGrid.Focus();
				MyFlexGrid.Select(0, 0);
			}
			else
			{
				_MyLog.WarnFormat("Attempt to give Focus to Disposed Object {0}", MyID);
			}
			ScrollToCenter();
		}
		public override void ItemShow()
		{
			MyFlexGrid.Focus();
			ScrollToCenter();
		}
		public override StepRTB MyStepRTB { get { return MyFlexGrid.TableCellEditor; } }
		public override DialogResult ReplaceText(string rpltxt, string fndstr, bool caseSensitive, bool matchWholeWord, bool reverse, bool prompt, IWin32Window fndrpldlg)
		{
			int r = MyFlexGrid.Row;
			int c = MyFlexGrid.Col;

			if (!reverse)
			{
				int w = MyFlexGrid.Cols.Count;
				int h = MyFlexGrid.Rows.Count;
				while (r < h)
				{
					CellRange cr = MyFlexGrid.GetMergedRange(r, c);
					if (cr.r1 == r && cr.c1 == c)
					{
						int ss = MyStepRTB.SelectionStart;
						int sl = MyStepRTB.SelectionLength;
						MyFlexGrid.StartEditing();
						MyStepRTB.Select(ss, sl);		// need to reset selection because startediting positions to end.
						string oldRtf = MyStepRTB.Rtf;
						DialogResult dr = MyStepRTB.ReplaceText(rpltxt, fndstr, caseSensitive, matchWholeWord, reverse, prompt, fndrpldlg);
						if (oldRtf != MyStepRTB.Rtf) MyFlexGrid[r, c] = MyStepRTB.Rtf;
						if (dr == DialogResult.Yes || dr == DialogResult.Cancel) return dr;
					}
					c = c + 1;
					if (c == w)
					{
						c = 0;
						r = r + 1;
					}
					if (r < h)
					{
						MyFlexGrid.Select(r, c);
						MyStepRTB.Select(0, 0);
					}
				}
			}
			else   // reverse
			{
				while (r >= 0)
				{
					CellRange cr = MyFlexGrid.GetMergedRange(r, c);
					if (cr.r1 == r && cr.c1 == c)
					{
						int ss = MyStepRTB.SelectionStart;
						int sl = MyStepRTB.SelectionLength;
						MyFlexGrid.StartEditing();
						MyStepRTB.Select(ss, sl);
						string oldRtf = MyStepRTB.Rtf;
						DialogResult dr = MyStepRTB.ReplaceText(rpltxt, fndstr, caseSensitive, matchWholeWord, reverse, prompt, fndrpldlg);
						if (oldRtf != MyStepRTB.Rtf) MyFlexGrid[r, c] = MyStepRTB.Rtf;
						if (dr == DialogResult.Yes || dr == DialogResult.Cancel) return dr;
					}
					c = c - 1;
					if (c < 0)
					{
						c = MyFlexGrid.Cols.Count - 1;
						r = r - 1;
					}
					cr = MyFlexGrid.GetMergedRange(r, c);
					if (r >= 0 && cr.r1 == r && cr.c1 == c)
					{
						MyFlexGrid.Select(r, c);
						MyFlexGrid.StartEditing();
						MyStepRTB.Select(MyStepRTB.Text.Length, 0);
					}
				}
			}
			return DialogResult.No;
		}
		public override bool FindText(string str, bool caseSensitive, bool matchWholeWord, bool reverse)
		{
			int r = MyFlexGrid.Row;
			int c = MyFlexGrid.Col;
			if (!reverse)
			{
				int w = MyFlexGrid.Cols.Count;
				int h = MyFlexGrid.Rows.Count;
				while (r < h)
				{
					CellRange cr = MyFlexGrid.GetMergedRange(r, c);
					if (cr.r1 == r && cr.c1 == c)
					{
						int ss = MyStepRTB.SelectionStart + MyStepRTB.SelectionLength;
						MyFlexGrid.StartEditing();
						MyStepRTB.Select(ss, 0);	// need to reset selection because startediting positions to end.
						bool scn = MyStepRTB.FindText(str, caseSensitive, matchWholeWord, reverse);
						if (scn) return true;
					}
					c = c + 1;
					if (c == w)
					{
						c = 0;
						r = r + 1;
					}
					if (r < h)
					{
						MyFlexGrid.Select(r, c);
						MyStepRTB.Select(0, 0);
					}
				}
			}
			else
			{
				while (r >= 0)
				{
					CellRange cr = MyFlexGrid.GetMergedRange(r, c);
					if (cr.r1 == r && cr.c1 == c)
					{
						int ss = MyStepRTB.SelectionStart;
						MyFlexGrid.StartEditing();
						MyStepRTB.Select(ss, 0);
						bool scn = MyStepRTB.FindText(str, caseSensitive, matchWholeWord, reverse);
						if (scn) return true;
					}
					c = c - 1;
					if (c < 0)
					{
						c = MyFlexGrid.Cols.Count - 1;
						r = r - 1;
					}
					cr = MyFlexGrid.GetMergedRange(r, c);
					if (r >= 0 && cr.r1 == r && cr.c1 == c)
					{
						MyFlexGrid.Select(r, c);
						MyFlexGrid.StartEditing();
						MyStepRTB.Select(MyStepRTB.Text.Length, 0);
					}
				}
			}
			return false;
		}
		public override void PositionToEnd()
		{
			int r = MyFlexGrid.Rows.Count - 1;
			int c = MyFlexGrid.Cols.Count - 1;
			MyFlexGrid.Select(r, c);
			while (r >= 0)
			{
				CellRange cr = MyFlexGrid.GetMergedRange(r, c);
				if (cr.r1 == r && cr.c1 == c)
				{
					MyFlexGrid.StartEditing();
					return;
				}
				c = c - 1;
				if (c < 0)
				{
					c = MyFlexGrid.Cols.Count - 1;
					r = r - 1;
				}
				if (r >= 0)
				{
					MyFlexGrid.Select(r, c);
					MyStepRTB.Select(MyStepRTB.Text.Length, 0);
				}
			}
		}
		public override string SelectedTextForFind
		{
			get
			{
				StepRTB srtb = MyStepRTB;
				if (srtb.SelectionLength > 0)
				{
					if (srtb.IsSelectionLinked(srtb.SelectionStart, srtb.SelectionLength))
						return srtb.SelectedText.Substring(0, srtb.SelectedText.IndexOf("#Link"));
					else
						return srtb.SelectedText;
				}
				return null;
			}
		}
		public override bool SpellCheckNext()
		{
			int r = MyFlexGrid.Row;
			int c = MyFlexGrid.Col;
			int w = MyFlexGrid.Cols.Count;
			int h = MyFlexGrid.Rows.Count;
			while (r < h)
			{
				CellRange cr = MyFlexGrid.GetMergedRange(r, c);
				if (cr.r1 == r && cr.c1 == c)
				{
					MyFlexGrid.Select(r, c);
					MyFlexGrid.StartEditing();
					string oldRtf = MyStepRTB.Rtf;
					bool scn = MyStepRTB.SpellCheckNext();
					if (oldRtf != MyStepRTB.Rtf) MyFlexGrid[r, c] = MyStepRTB.Rtf;
					if (!scn) return false;
				}
				c = c + 1;
				if (c == w)
				{
					c = 0;
					r = r + 1;
				}
			}
			return true;
		}
		public override void IdentifyMe(bool highlight)
		{
			if (highlight)
			{
				//for (int r = 0; r < MyFlexGrid.Rows.Count; r++)
				//  for (int c = 0; c < MyFlexGrid.Cols.Count; c++)
				//  {
				//    CellStyle cs = MyFlexGrid.GetCellStyle(r, c);
				//    CellRange cr = MyFlexGrid.GetCellRange(r, c);
				//    Console.WriteLine("Style[{0},{1}] = '{2}' {3} '{4}'", r,c,cs.Name,cs.BackColor,cr.StyleNew.Name);
				//  }
				MyFlexGrid.Styles["Alternate"].BackColor =
				MyFlexGrid.Styles["Normal"].BackColor = Color.Gray;
			}
			else
			{
				if (MyFlexGrid.Focused) // If active Set BackColor to the active color
					SetActive();
				else // Otherwise Set the BackColor to either the InactiveColor or the AnnotationColor
				{
					MyFlexGrid.Styles["Alternate"].BackColor =
						MyFlexGrid.Styles["Normal"].BackColor =
						MyItemInfo.ItemAnnotationCount == 0 ? MyStepPanel.InactiveColor : MyStepPanel.AnnotationColor;
					// Turn-off Size adjustment
					MyFlexGrid.Cols.Fixed = 0;
					MyFlexGrid.Rows.Fixed = 0;
				}
			}
		}
		public override void SetActive() 
		{
			AdjustColorsForEditMode();
		}
		private bool _Empty = false;
		public override bool Empty
		{
			get { return _Empty; }
			set { _Empty = value; }
		}
		private bool _ActiveMode = false;
		public override void RefreshDisplay(bool activeMode) 
		{
			_ActiveMode = activeMode;
			XmlDocument xd = new XmlDocument();
			xd.LoadXml(MyItemInfo.MyContent.MyGrid.Data.Replace("Courier New", "Times New Roman"));
			//xd.LoadXml(MyItemInfo.MyContent.MyGrid.Data);
			MyFlexGrid.Clear();
			MyFlexGrid.MergedRanges.Clear();
			MyFlexGrid.ReadXml(xd);
			MyFlexGrid.AdjustGridControlSize();
			// When a grid is read from XML, all of the styles are updated to the values in the XML.
			// Thus any specific settings need to be set after the grid is read.
			MyFlexGrid.Styles["Highlight"].BackColor = Color.LightCyan;
			MyFlexGrid.Styles["Focus"].BackColor = Color.LightCyan;
			MyFlexGrid.HighLight = activeMode ? C1.Win.C1FlexGrid.HighLightEnum.Always : C1.Win.C1FlexGrid.HighLightEnum.WithFocus;
			MyFlexGrid.VwMode = MyStepPanel.VwMode;
		}
		public override void ToggleEditView(E_ViewMode vwMode) 
		{
			/*
			 * TODO:
			 *  1) SaveContents
			 */
			RefreshDisplay(false);
			MyFlexGrid.VwMode = vwMode;
		}
		public override int TabLeft { get { return lblTab.Left; } set { lblTab.Left = value; } }
		public override Font TabFont { get { return lblTab.Font; } set { lblTab.Font = value; } }
		public override string TabText { get { return lblTab.Text; } }
		public override Point TabLocation { get { return lblTab.Location; } }
		public override Font ContentFont { get { return MyFlexGrid.Font; } set { MyFlexGrid.Font  = value; } }  // TODO how do we know what font tables are in?
		public override float ContentTop { get { return MyFlexGrid.Top; } }
		public override void SetupHeader(ItemInfo itemInfo) { ;}		// tables do not have headers
		public override void ShowExpanded() {;}
		public override void SetText() 
		{ 
			RefreshDisplay(false);
			IdentifyMe(false);
		}
		public override void SetExpandAndExpander(ItemInfo itemInfo) { CanExpand = false; } // can't expand a table
		#endregion
	}
}