public void PopRedo()
{
if (RedoStack.Count > 0) // ensures that there is something to be popped
{
CmdCollection from = RedoStack.Pop();
/* Executes all commands in the popped list
* Pushes the inverse of the popped actions onto the redo stack */
UndoStack.Push(new CmdCollection(from.ExecuteAll()));
}
}
public void PopUndo()
{
if (UndoStack.Count > 0) // ensures that there is something to be popped
{
CmdCollection from = UndoStack.Pop(); // pops the top list off of the undo stack -> all of the contents will be undone
/* Executes all commands in the popped list
* Pushes the inverse of the popped actions onto the redo stack */
RedoStack.Push(new CmdCollection(from.ExecuteAll()));
}
}