/// <summary>
/// execute redo command.
/// </summary>
/// <param name="dataGridView">datagridview that trigger redo event.</param>
public void RedoExecute(DataGridView dataGridView)
{
// execute command in the redo stack.
RedoCommand newCommand = this.SpreadSheetRedo();
// update data grid view cell.
if (newCommand.CommandType == CommandType.Text)
{
dataGridView.Rows[newCommand.Cell.RowIndex].Cells[newCommand.Cell.ColumnIndex].Value = this.spreadSheet[newCommand.Cell.RowIndex, newCommand.Cell.ColumnIndex].Text;
this.undoStack.Pop();
}
else if (newCommand.CommandType == CommandType.Color)
{
dataGridView.Rows[newCommand.Cell.RowIndex].Cells[newCommand.Cell.ColumnIndex].Style.BackColor = System.Drawing.Color.FromArgb(this.spreadSheet[newCommand.Cell.RowIndex, newCommand.Cell.ColumnIndex].Color);
}
}
/// <summary>
/// Spreadsheet undo execute.
/// </summary>
public void SpreadSheetUndo()
{
ICommandInterface command = this.undoStack.Pop();
UndoCommand newCommand = command as UndoCommand;
if (newCommand.CommandType == CommandType.Text)
{
ICommandInterface newRedoCommand = new RedoCommand(newCommand.CommandType, newCommand.Cell, newCommand.Cell.Text);
this.redoStack.Push(newRedoCommand);
}
else if (newCommand.CommandType == CommandType.Color)
{
ICommandInterface newRedoCommand = new RedoCommand(newCommand.CommandType, newCommand.Cell, newCommand.Cell.Color.ToString());
this.redoStack.Push(newRedoCommand);
}
command.Action();
}
private RedoCommand SpreadSheetRedo()
{
ICommandInterface command = this.redoStack.Pop();
RedoCommand newCommand = command as RedoCommand;
if (newCommand.CommandType == CommandType.Text)
{
ICommandInterface newUndoCommand = new UndoCommand(newCommand.CommandType, newCommand.Cell, newCommand.Cell.Text);
this.UndoStack.Push(newUndoCommand);
}
else if (newCommand.CommandType == CommandType.Color)
{
ICommandInterface newUndoCommand = new UndoCommand(newCommand.CommandType, newCommand.Cell, newCommand.Cell.Color.ToString());
this.undoStack.Push(newUndoCommand);
}
command.Action();
return(newCommand);
}