/// <summary>
/// EndUpdate and generate Undo/Redo command buffer if there is any
/// modification happend since BeginUpdate called.
/// </summary>
public void EndUpdate()
{
if (!inUpdating)
throw new InvalidOperationException(
"You must call BeginUpdate before call EndUpdate.");
// Compare modified key values.
if (modifiedKeys != null && modifiedKeys.Count > 0)
{
List<EditCurveKey> oldKeyValues =
new List<EditCurveKey>(modifiedKeys.Count);
List<EditCurveKey> newKeyValues =
new List<EditCurveKey>(modifiedKeys.Count);
foreach (EditCurveKey savedKey in modifiedKeys.Values)
{
EditCurveKey curKey;
if (keys.TryGetValue(savedKey.Id, out curKey))
{
if (!curKey.Equals(savedKey))
{
// Saved value is already cloned.
oldKeyValues.Add(savedKey);
newKeyValues.Add(curKey.Clone());
}
}
}
if (newKeyValues.Count != 0)
{
dirty = true;
if (commandHistory != null)
commandHistory.Add(new EditCurveKeyUpdateCommand(
this, oldKeyValues, newKeyValues));
}
}
modifiedKeys = null;
// Compare states
bool stateChanged = state != savedState;
if (commandHistory != null && stateChanged)
commandHistory.Add(new EditCurveStateChangeCommand(
this, savedState, state));
savedState = null;
inUpdating = false;
if (stateChanged) FireStateChangeEvent();
}
/// <summary>
/// Apply new EditCurveState.
/// </summary>
/// <param name="newState"></param>
public void ApplyState(EditCurveState newState)
{
if (newState == null) throw new ArgumentNullException("newState");
inUpdating = true;
Name = newState.Name;
PreLoop = newState.PreLoop;
PostLoop = newState.PostLoop;
inUpdating = false;
FireStateChangeEvent();
}
/// <summary>
/// Begin update curve parameters.
/// </summary>
/// <remarks>It records curve satte and key values modification between
/// BeginUpdate and EndUpdate method.</remarks>
public void BeginUpdate()
{
if (inUpdating)
throw new InvalidOperationException("BeginUpdate called twice.");
modifiedKeys = new Dictionary<long, EditCurveKey>();
savedState = (EditCurveState)state.Clone();
inUpdating = true;
}
public EditCurveStateChangeCommand(EditCurve curve, EditCurveState oldState,
EditCurveState newState)
{
if (oldState == null) throw new ArgumentNullException("oldState");
if (newState == null) throw new ArgumentNullException("newState");
this.curve = curve;
this.oldState = (EditCurveState)oldState.Clone();
this.newState = (EditCurveState)newState.Clone();
}
