internal EditingScope(ModelTreeManager modelTreeManager, EditingScope outerScope)
{
this.modelTreeManager = modelTreeManager;
this.changes = new List <Change>();
this.outerScope = outerScope;
this.HasModelChanges = false;
this.itemsAdded = new HashSet <ModelItem>();
this.itemsRemoved = new HashSet <ModelItem>();
}
internal EditingScope(ModelTreeManager modelTreeManager, EditingScope outerScope)
{
this.modelTreeManager = modelTreeManager;
this.changes = new List<Change>();
this.outerScope = outerScope;
this.HasModelChanges = false;
this.itemsAdded = new HashSet<ModelItem>();
this.itemsRemoved = new HashSet<ModelItem>();
}
public EditingScopeUndoUnit(EditingContext context, ModelTreeManager modelTreeManager, EditingScope editingScope)
: base(context)
{
Fx.Assert(context != null, "context cannot be null");
Fx.Assert(modelTreeManager != null, "modelTreeManager cannot be null");
Fx.Assert(editingScope != null, "editingScope cannot be null");
this.context = context;
this.modelTreeManager = modelTreeManager;
this.editingScope = editingScope;
this.Description = this.editingScope.Description;
SaveGlobalState();
}
internal static ModelEditingScope ModelItemBeginEdit(ModelTreeManager modelTreeManager, string description, bool shouldApplyChangesImmediately)
{
if (shouldApplyChangesImmediately && modelTreeManager.Context.Services.GetService <UndoEngine>().IsBookmarkInPlace)
{
throw FxTrace.Exception.AsError(new InvalidOperationException(SR.InvalidNestedModelItemBeginEditExceptionMessage));
}
EditingScope editingScope = modelTreeManager.CreateEditingScope(description, shouldApplyChangesImmediately);
if (shouldApplyChangesImmediately && editingScope == null)
{
throw FxTrace.Exception.AsError(new InvalidOperationException(SR.InvalidNestedModelItemBeginEditExceptionMessage));
}
return(editingScope);
}
protected override void OnGotMouseCapture(MouseEventArgs e)
{
ModelItem stateContainerModelItem = this.ParentStateContainerEditor.ModelItem;
string undoItemName = string.Empty;
if (stateContainerModelItem.ItemType == typeof(StateMachine))
{
undoItemName = SR.StateMachineResize;
}
else if (stateContainerModelItem.ItemType == typeof(State))
{
undoItemName = SR.StateResize;
}
else
{
Fx.Assert(false, "The model item type is invalid");
}
this.scope = (EditingScope)this.ParentStateContainerEditor.ModelItem.BeginEdit(undoItemName);
base.OnGotMouseCapture(e);
}
internal static void TryCreateImmediateEditingScopeAndExecute(EditingContext context, string editingScopeDescription, Action <EditingScope> modelEditingWork)
{
Fx.Assert(context != null, "context should not be null.");
Fx.Assert(modelEditingWork != null, "modelEditingWork should not be null.");
ModelTreeManager manager = context.Services.GetRequiredService <ModelTreeManager>();
if (manager.CanCreateImmediateEditingScope())
{
using (EditingScope editingScope = manager.CreateEditingScope(editingScopeDescription, true))
{
modelEditingWork(editingScope);
}
}
else
{
modelEditingWork(null);
}
}
protected override void OnLostMouseCapture(MouseEventArgs e)
{
if (this.scope != null)
{
this.scope.Complete();
this.scope.Dispose();
this.scope = null;
}
base.OnLostMouseCapture(e);
}
static bool IsTransitionReordering(EditingScope scope)
{
return scope.Changes.Any<Change>((p) =>
{
return p != null && p.GetType() == typeof(TransitionReorderChange);
});
}
static bool ShouldSuppressAddingConnectorsWhenAddingStateVisuals(EditingScope scope)
{
return scope.Changes.Any<Change>((p) =>
{
return p != null && p.GetType() == typeof(SuppressAddingConnectorWhenAddingStateVisual);
});
}