do not show hover text when painting, dragging a cell, or when the mouse has left

Author: SuuperW

src/BizHawk.Client.EmuHawk/CustomControls/InputRoll/InputRoll.Drawing.cs

@@ -189,7 +189,11 @@ private void DrawData(List<RollColumn> visibleColumns, int firstVisibleRow, int
 			_renderer.PrepDrawString(Font, _foreColor);
 
 			Cell currentCell = new();
-			Cell mouseCell = ShowColumnTextOnHover ? CurrentCell : null;
+			Cell mouseCell = null;
+			if (ShowColumnTextOnHover && _draggingCell == null && !IsPaintDown)
+			{
+				mouseCell = CurrentCell;
+			}
 			if (HorizontalOrientation)
 			{
 				for (int j = 0; j < visibleColumns.Count; j++)

src/BizHawk.Client.EmuHawk/CustomControls/InputRoll/InputRoll.cs

@@ -1084,7 +1084,7 @@ protected override void OnMouseLeave(EventArgs e)
 			bool refresh = false;
 			_currentX = null;
 			_currentY = null;
-			if (IsHoveringOnColumnCell)
+			if (IsHoveringOnColumnCell || ShowColumnTextOnHover)
 			{
 				refresh = true;
 			}