/// <summary>
/// Creates new undo object for recording actions with using pattern.
/// </summary>
/// <param name="undo">The undo/redo object.</param>
/// <param name="snapshotInstance">Instance of an object to record.</param>
/// <param name="actionString">Name of action to be displayed in undo stack.</param>
/// <param name="customActionBefore">Custom action to append to the undo block action before recorded modifications apply.</param>
/// <param name="customActionAfter">Custom action to append to the undo block action after recorded modifications apply.</param>
public UndoBlock(Undo undo, object snapshotInstance, string actionString, IUndoAction customActionBefore = null, IUndoAction customActionAfter = null)
{
_snapshotUndoInternal = snapshotInstance;
_undo = undo;
_undo.RecordBegin(_snapshotUndoInternal, actionString);
_customActionBefore = customActionBefore;
_customActionAfter = customActionAfter;
}
/// <summary>
/// Creates new undo object for recording actions with using pattern.
/// </summary>
/// <param name="undo">The undo/redo object.</param>
/// <param name="snapshotInstance">Instance of an object to record.</param>
/// <param name="actionString">Name of action to be displayed in undo stack.</param>
public UndoBlock(Undo undo, object snapshotInstance, string actionString)
{
SnapshotUndoInternal = snapshotInstance;
Undo = undo;
Undo.RecordBegin(SnapshotUndoInternal, actionString);
}