B2022-137 Table (grid) performance improvements.

B2022-137 added method to get font size from RTF string (used for tables)
B2022-137 Table (grid) performance improvements getting font sizes
B2022-137 Table (grid) performance improvements showing table cell shading

PROMS/Volian.Controls.Library/GridItem.cs

@@ -824,12 +824,12 @@ namespace Volian.Controls.Library
 			{
 				_MyLog.WarnFormat("Attempt to give Focus to Disposed Object {0}", MyID);
 			}
-			ScrollToCenter();
+			//ScrollToCenter();
 		}
 		public override void ItemShow()
 		{
 			MyFlexGrid.Focus();
-			ScrollToCenter();
+			//ScrollToCenter();
 		}
 		public StepRTB DisplayRoStepRTB;
 		public override StepRTB MyStepRTB 

PROMS/Volian.Controls.Library/StepRTB.cs

@@ -2716,6 +2716,22 @@ namespace Volian.Controls.Library
 			}
 			return (differentFonts || lastSZ == 0) ? 0 : lastSZ/2; // divide the RTF font size by two to get the font point size
 		}
+		// F2022-137 Table performance improvements
+		public static float GetRTFFontSize(string rtf)
+		{
+			MatchCollection mc = Regex.Matches(rtf, @"\\fs([0-9]+)");
+			bool differentFonts = false;
+			float lastSZ = 0;
+			foreach (Match match in mc)
+			{
+				float sz = float.Parse(match.Groups[1].Value);
+				if (lastSZ == 0)
+					lastSZ = sz;
+				else if (lastSZ != sz)
+					differentFonts = true;
+			}
+			return (differentFonts || lastSZ == 0) ? 0 : lastSZ / 2; // divide the RTF font size by two to get the font point size
+		}
 		private static Form ParentForm(Control ctrl)
 		{
 			while (!(ctrl.Parent is Form || ctrl.Parent is EditItem)) 

PROMS/Volian.Controls.Library/StepTabRibbon.cs

@@ -2636,41 +2636,10 @@ namespace Volian.Controls.Library
 				// Selected table cell is not in edit mode. Go into edit mode and position according
 				// to the pass in selOpt.
 				// B2021-090 don't try to get the font size on an RO table
+				// B2022-137 Table performance improvements
 				if (MyFlexGrid != null && MyFlexGrid.Editor == null && !MyFlexGrid.IsRoTable)
 				{
-					float fntSz = 0;
+					rtnFontSize = StepRTB.GetRTFFontSize(MyFlexGrid.Selection.Clip);
-					C1.Win.C1FlexGrid.CellRange cr = MyFlexGrid.Selection; // get the selected grid cell range
-					for (int r = cr.r1; r <= cr.r2; r++)
-						for (int c = cr.c1; c <= cr.c2; c++)
-						{
-							if (rtnFontSize == 0) continue;
-							MyFlexGrid._GettingFontSize = true;
-							MyFlexGrid.Select(r, c);
-							MyFlexGrid.StartEditing();
-							switch (selOpt)
-							{
-								case SelectionOption.Start:
-									MyStepRTB.Select(0, 0);
-									break;
-								case SelectionOption.All:
-									MyStepRTB.SelectAll();
-									break;
-								case SelectionOption.End:
-									MyStepRTB.Select(MyStepRTB.TextLength, 0);
-									break;
-								default:
-									MyStepRTB.Select(0, 0);
-									break;
-							}
-							fntSz = MyStepRTB.GetRTFFontSize(); // returns 0 when there are mulitiple font sizes
-							if (rtnFontSize == -1)
-								rtnFontSize = fntSz; // first time getting font size in the foreach loop
-							else if (fntSz == 0 || fntSz != rtnFontSize)
-								rtnFontSize = 0; // indicates multiple font sizes in the selection
-						}
-					MyFlexGrid.Select(cr);
-					MyFlexGrid.Focus();
-					MyFlexGrid._GettingFontSize = false; // _GettingFontSize prevents the cell text editor from flashing on/off when getting font size
 				}
 				else
 					rtnFontSize = MyStepRTB.GetRTFFontSize(); // returns 0 when there are mulitiple font sizes

PROMS/Volian.Controls.Library/VlnFlexGrid.cs

@@ -4784,7 +4784,8 @@ namespace Volian.Controls.Library
 			{
 				float fnSz = GetRTFFontSize(); // returns the font size in pts from the text's RTF
 				_owner.SelectedFontSize = fnSz; // will trigger the changing of the font size from VlnFlexGrid class
-				_owner.ShowTableCellShading(); //C2021-004 display any background color change when you move off a cell
+				// B2022-137 Table performance improvements - moved ShowTableCellShading to the onLeave call
+				//_owner.ShowTableCellShading(); //C2021-004 display any background color change when you move off a cell
 			}
 		}
 
@@ -4986,6 +4987,7 @@ namespace Volian.Controls.Library
 
 			// done for now, hide editor
 			Visible = false;
+			_owner.ShowTableCellShading(); // B2022-137 restore shading if table after editing a cell
 		}
 
 		// we will handle the Tab key ourselves