void OnFreeFormPanelRequiredSizeChanged(object sender, RequiredSizeChangedEventArgs e)
{
Dispatcher.BeginInvoke(() =>
{
// Access the view state dictionary directly to avoid generating an undo item because of ViewStateAttachedPropertyFeature implementation.
Dictionary<string, object> viewState = WorkflowViewStateService.GetViewState(this.ModelItem.GetCurrentValue());
if (viewState == null)
{
viewState = new Dictionary<string, object>();
WorkflowViewStateService.SetViewState(this.ModelItem.GetCurrentValue(), viewState);
}
if (e.NewRequiredSize.Width > this.FlowchartWidth)
{
viewState[FlowchartSizeFeature.WidthPropertyName] = e.NewRequiredSize.Width;
this.FlowchartWidth = e.NewRequiredSize.Width;
}
if (e.NewRequiredSize.Height > this.FlowchartHeight)
{
viewState[FlowchartSizeFeature.HeightPropertyName] = e.NewRequiredSize.Height;
this.FlowchartHeight = e.NewRequiredSize.Height;
}
});
}
void OnFreeFormPanelRequiredSizeChanged(object sender, RequiredSizeChangedEventArgs e)
{
this.requiredSize = e.NewRequiredSize;
Dispatcher.BeginInvoke(new Action(() =>
{
if (this.requiredSize.Width > this.StateContainerWidth)
{
this.ViewStateService.StoreViewState(
this.ModelItem,
StateContainerEditor.StateContainerWidthViewStateKey,
this.requiredSize.Width);
}
if (this.requiredSize.Height > this.StateContainerHeight)
{
this.ViewStateService.StoreViewState(
this.ModelItem,
StateContainerEditor.StateContainerHeightViewStateKey,
this.requiredSize.Height);
}
}));
}
