/// <summary>
/// Gets the bounding rectangle of the Excel cell.
/// </summary>
/// <param name="cellInfo">The cell info.</param>
/// <returns>The bounding rectangle as an array.
/// The values are relative to the parent window and in Points (instead of Pixels).</returns>
public double[] GetBoundingRectangle(ExcelCellInfo cellInfo)
{
// Use Excel's Object Model to get the required.
double[] rect = new double[4];
rect[0] = rect[1] = rect[2] = rect[3] = -1;
Range cell = GetCell(cellInfo);
if (cell != null)
{
const double xOffset = 25.6; // The constant width of row name column.
const double yOffset = 36.0; // The constant height of column name row.
rect[0] = (double)cell.Left + xOffset;
rect[1] = (double)cell.Top + yOffset;
rect[2] = (double)cell.Width;
rect[3] = (double)cell.Height;
Range visibleRange = this.application.ActiveWindow.VisibleRange;
if (visibleRange != null)
{
rect[0] -= (double)visibleRange.Left;
rect[1] -= (double)visibleRange.Top;
}
}
return rect;
}
/// <summary>
/// Gets the property of a given cell.
/// </summary>
/// <param name="cellInfo">The cell info.</param>
/// <param name="propertyName">The name of the property.</param>
/// <returns>The value of the property.</returns>
public object GetCellProperty(ExcelCellInfo cellInfo, string propertyName)
{
// Use Excel's Object Model to get the required.
Range cell = GetCell(cellInfo);
if (cell == null)
{
throw new InvalidOperationException();
}
switch (propertyName)
{
case PropertyNames.Enabled:
return true; // TODO - Needed to add support for "locked" cells.
case PropertyNames.Value:
return cell.Value;
case PropertyNames.Text:
return cell.Text;
case PropertyNames.WidthInChars:
return cell.ColumnWidth;
case PropertyNames.HeightInPoints:
return cell.RowHeight;
case PropertyNames.Formula:
return cell.Formula;
case PropertyNames.WrapText:
return cell.WrapText;
default:
throw new NotSupportedException();
}
}
/// <summary>
/// Creates an ExcelCellElement instance.
/// </summary>
/// <param name="windowHandle">The window handle.</param>
/// <param name="cellInfo">The cell info.</param>
/// <param name="manager">The technology manager.</param>
internal ExcelCellElement(IntPtr windowHandle, ExcelCellInfo cellInfo, ExcelTechnologyManager manager)
: base(windowHandle, manager)
{
this.CellInfo = cellInfo;
}
/// <summary>
/// Gets the Range (cell) from the cell info.
/// </summary>
/// <param name="cellInfo">The cell info.</param>
/// <returns>The Range.</returns>
private Range GetCell(ExcelCellInfo cellInfo)
{
Range cell = null;
Worksheet ws = GetWorksheet(cellInfo.Parent);
if (ws != null)
{
cell = ws.Cells[cellInfo.RowIndex, cellInfo.ColumnIndex] as Range;
}
return cell;
}
/// <summary>
/// Sets focus on a given cell.
/// </summary>
/// <param name="cellInfo">The cell info.</param>
public void SetFocus(ExcelCellInfo cellInfo)
{
// Use Excel's Object Model to get the required.
Worksheet ws = GetWorksheet(cellInfo.Parent);
if (ws != null)
{
// There could be some other cell under editing. Exit that mode.
ExitPreviousEditing(ws);
ws.Activate();
Range cell = GetCell(cellInfo);
if (cell != null)
{
cell.Activate();
}
}
}
/// <summary>
/// Sets the property of a given cell.
/// </summary>
/// <param name="cellInfo">The cell info.</param>
/// <param name="propertyName">The name of the property.</param>
/// <param name="propertyValue">The value of the property.</param>
public void SetCellProperty(ExcelCellInfo cellInfo, string propertyName, object propertyValue)
{
// Use Excel's Object Model to get the required.
Range cell = GetCell(cellInfo);
if (cell == null)
{
throw new InvalidOperationException();
}
switch (propertyName)
{
case PropertyNames.Value:
cell.Value = propertyValue;
break;
case PropertyNames.WidthInChars:
cell.ColumnWidth = propertyValue;
break;
case PropertyNames.HeightInPoints:
cell.RowHeight = propertyValue;
break;
case PropertyNames.Formula:
cell.Formula = propertyValue;
break;
case PropertyNames.WrapText:
cell.WrapText = propertyValue;
break;
default:
throw new NotSupportedException();
}
}
/// <summary>
/// Scrolls a given cell into view.
/// </summary>
/// <param name="cellInfo">The cell info.</param>
public void ScrollIntoView(ExcelCellInfo cellInfo)
{
// Use Excel's Object Model to get the required.
Worksheet ws = GetWorksheet(cellInfo.Parent);
if (ws != null)
{
ws.Activate();
double[] rect = this.GetBoundingRectangle(cellInfo);
this.application.ActiveWindow.ScrollIntoView((int)rect[0], (int)rect[1], (int)rect[2], (int)rect[3]);
}
}
