/// <summary>
/// Add a undo/redo command to the stack and pop all trailing commands after the current command
/// </summary>
/// <param name="item"></param>
public void PushHistoryItem(UndoRedoCommand item)
{
while (this.HistoryStackTop > CurrentIndex)
{
PopHistoryItem();
}
_historyStack.Add(item);
CurrentIndex = this.HistoryStackTop;
if (ItemPushed != null)
{
ItemPushed(this, EventArgs.Empty);
}
}
/// <summary>
/// Perform redo on next command
/// </summary>
public void Redo()
{
if (this.CanRedo)
{
try
{
_isUndoingOrRedoing = true;
++CurrentIndex;
UndoRedoCommand currentItem = _historyStack[CurrentIndex];
currentItem.ObjectType.GetProperty(currentItem.AffectedPropertyName).SetValue(currentItem.Object, currentItem.NewValue, null);
}
finally
{
_isUndoingOrRedoing = false;
}
}
}