internal void RegisterAttachedProperty <T>(string propertyName, bool isBrowsable, bool isVisibleToModelItem, T defaultValue)
{
AttachedProperty <T> attachedProperty = new AttachedProperty <T>
{
IsBrowsable = isBrowsable,
IsVisibleToModelItem = isVisibleToModelItem,
Name = propertyName,
OwnerType = modelType,
Getter = (modelItem) =>
{
T result = (T)viewStateService.RetrieveViewState(modelItem, propertyName);
return(result == null ? defaultValue : result);
},
Setter = (modelItem, value) =>
{
if (value == null || value.Equals(defaultValue))
{
viewStateService.StoreViewStateWithUndo(modelItem, propertyName, null);
}
else
{
viewStateService.StoreViewStateWithUndo(modelItem, propertyName, value);
}
}
};
attachedPropertiesService.AddProperty(attachedProperty);
attachedProperties.Add(propertyName, attachedProperty);
}
void UpdateViewState(string oldValue, string newValue)
{
EditingContext context = this.flowSwitchModelItem.GetEditingContext();
ViewStateService viewStateService = (ViewStateService)context.Services.GetService(typeof(ViewStateService));
if (viewStateService != null)
{
object viewState = viewStateService.RetrieveViewState(this.flowSwitchModelItem, oldValue);
if (viewState != null)
{
viewStateService.StoreViewStateWithUndo(this.flowSwitchModelItem, oldValue, null);
viewStateService.StoreViewStateWithUndo(this.flowSwitchModelItem, newValue, viewState);
}
}
}
protected override void OnPreviewMouseLeftButtonUp(MouseButtonEventArgs e)
{
if (e != null && !this.Disabled && this.scope != null)
{
ModelItem stateContainerModelItem = this.ParentStateContainerEditor.ModelItem;
ViewStateService viewStateService = this.ParentStateContainerEditor.Context.Services.GetService <ViewStateService>();
viewStateService.StoreViewStateWithUndo(stateContainerModelItem, StateContainerEditor.StateContainerWidthViewStateKey, this.ParentStateContainerEditor.StateContainerWidth);
viewStateService.StoreViewStateWithUndo(stateContainerModelItem, StateContainerEditor.StateContainerHeightViewStateKey, this.ParentStateContainerEditor.StateContainerHeight);
Mouse.OverrideCursor = null;
Mouse.Capture(null);
StateMachineDesigner stateMachineDesigner = VisualTreeUtils.FindVisualAncestor <StateMachineDesigner>(this.ParentStateContainerEditor);
stateMachineDesigner.IsResizing = false;
e.Handled = true;
}
base.OnPreviewMouseLeftButtonUp(e);
}
public static void OnAddAnnotationCommandExecuted(ExecutedRoutedEventArgs e, ModelItem modelItem)
{
ModelProperty property = modelItem.Properties.Find(Annotation.AnnotationTextPropertyName);
if (property != null)
{
using (ModelEditingScope editingScope = modelItem.BeginEdit(SR.AddAnnotationDescription))
{
property.SetValue(string.Empty);
ViewStateService viewStateService = modelItem.GetEditingContext().Services.GetService <ViewStateService>();
viewStateService.StoreViewStateWithUndo(modelItem, Annotation.IsAnnotationDockedViewStateName, false);
editingScope.Complete();
}
if (modelItem.View != null)
{
WorkflowViewElement element = modelItem.View as WorkflowViewElement;
if (element != null)
{
element.OnEditAnnotation();
}
}
}
e.Handled = true;
}
protected override void OnPreviewMouseLeftButtonUp(MouseButtonEventArgs e)
{
if (e != null && !this.Disabled)
{
ModelItem stateContainerModelItem = this.ParentStateContainerEditor.ModelItem;
// Save the new size to view state.
using (ModelEditingScope scope = stateContainerModelItem.BeginEdit(SR.Resize))
{
ViewStateService viewStateService = this.ParentStateContainerEditor.Context.Services.GetService <ViewStateService>();
viewStateService.StoreViewStateWithUndo(stateContainerModelItem, StateContainerEditor.StateContainerWidthViewStateKey, this.ParentStateContainerEditor.StateContainerWidth);
viewStateService.StoreViewStateWithUndo(stateContainerModelItem, StateContainerEditor.StateContainerHeightViewStateKey, this.ParentStateContainerEditor.StateContainerHeight);
scope.Complete();
}
Mouse.OverrideCursor = null;
Mouse.Capture(null);
e.Handled = true;
}
base.OnPreviewMouseLeftButtonUp(e);
}
public static void OnDeleteAnnotationCommandExecuted(ExecutedRoutedEventArgs e, ModelItem modelItem)
{
using (ModelEditingScope editingScope = modelItem.BeginEdit(SR.DeleteAnnotationDescription))
{
modelItem.Properties[Annotation.AnnotationTextPropertyName].SetValue(null);
ViewStateService viewStateService = modelItem.GetEditingContext().Services.GetService <ViewStateService>();
viewStateService.StoreViewStateWithUndo(modelItem, Annotation.IsAnnotationDockedViewStateName, null);
editingScope.Complete();
}
e.Handled = true;
}