/// <summary>
/// Create an instance of the UndoRedoList.
/// </summary>
/// <param name="list">List to wrap.</param>
/// <param name="undoRedoManager">Undo and redo manager.</param>
public UndoRedoList(IList <T> list, UndoRedoManager undoRedoManager) :
this(list, null, undoRedoManager)
{
}
public bool Run(UndoRedoManager undoRedoManager, ActionType type)
{
switch (operation)
{
case Operation.Insert:
{
int count = owner.Count;
int index = this.index;
if (type != ActionType.Undo)
{
if ((index < 0) || (index > count))
{
return(false);
}
owner.List.Insert(index, item);
owner.OnListChanged(
new ListChangedEventArgs2(ListChangedType.ItemAdded, index));
}
else
{
if ((index < 0) || (index >= count))
{
return(false);
}
owner.List.RemoveAt(index);
owner.OnListChanged(
new ListChangedEventArgs2(
ListChangedType.ItemDeleted,
index,
item));
}
break;
}
case Operation.Remove:
{
type = type != ActionType.Undo ? ActionType.Undo : ActionType.Do;
goto case Operation.Insert;
}
case Operation.Set:
{
if ((index < 0) || (index >= owner.Count))
{
return(false);
}
T prevItem = owner.List[index];
if (EqualityComparer <T> .Default.Equals(prevItem, item))
{
return(false);
}
owner.List[index] = item;
item = prevItem;
owner.OnListChanged(
new ListChangedEventArgs2(ListChangedType.ItemChanged, index, item));
break;
}
}
return(true);
}
/// <summary>
/// Create an instance of the undo and redo scope.
/// </summary>
/// <param name="undoRedoManager">Instance of the undo and redo manager.</param>
/// <param name="name">Scope name.</param>
public Scope(UndoRedoManager undoRedoManager, string name) :
this(undoRedoManager, name, null)
{
}
/// <summary>
/// Creates an instance of the UndoRedoTypeDescriptor.
/// </summary>
/// <param name="instance">Instance wrapped with UndoRedoTypeDescriptor.</param>
/// <param name="undoRedoManager">Undo redo manager.</param>
public UndoRedoTypeDescriptor(object instance, UndoRedoManager undoRedoManager) :
this(instance, null, undoRedoManager)
{
}
public bool Run(UndoRedoManager undoRedoManager, ActionType type)
{
return(true);
}
