/// Ensures that DSL Diagram and Entity Diagram are in sync.
/// This method also update the xref link between DSL Diagram and Model Diagram.
private void ApplyLayoutInformationFromModelDiagram()
{
var artifact = Context.GetEFArtifactService().Artifact as EntityDesignArtifact;
Debug.Assert(artifact != null, "Could not get the instance of EntityDesignArtifact from EditingContext.");
if (artifact != null &&
artifact.IsDesignerSafe)
{
DesignerModel.Diagram modelDiagram = null;
if (artifact.DesignerInfo != null &&
artifact.DesignerInfo.Diagrams != null)
{
modelDiagram = String.IsNullOrEmpty(_diagramId)
? artifact.DesignerInfo.Diagrams.FirstDiagram
: artifact.DesignerInfo.Diagrams.GetDiagram(_diagramId);
}
// At this point DSL diagram should have been set.
var diagram = Diagram as EntityDesignerDiagram;
Debug.Assert(diagram != null, "Why does the DSL diagram is null?");
if (modelDiagram != null &&
diagram != null)
{
EntityModelToDslModelTranslatorStrategy.TranslateDiagram(diagram, modelDiagram);
if (CurrentDesigner != null)
{
CurrentDesigner.ZoomAtViewCenter((float)modelDiagram.ZoomLevel.Value / 100);
}
}
}
}
/// <summary>
/// This method reads the .diagram file and makes sure that shapes exist for every item
/// in the .diagram file.
/// </summary>
internal static void ReloadDiagram(EntityDesignerViewModel viewModel)
{
var diagram = viewModel.GetDiagram();
if (diagram == null)
{
// Empty DSL diagram
return;
}
diagram.ResetWatermark(diagram.ActiveDiagramView);
// get our artifact
var artifact = EditingContextManager.GetArtifact(viewModel.EditingContext);
Debug.Assert(artifact != null);
if (!artifact.IsDesignerSafe)
{
return;
}
var diagramModel = viewModel.ModelXRef.GetExisting(diagram) as DesignerModel.Diagram;
if (diagramModel != null)
{
// ensure that we still have all of the parts we need to re-translate from the Model
EntityModelToDslModelTranslatorStrategy.TranslateDiagram(diagram, diagramModel);
}
else
{
// this path will usually only happen if an UMFDB extension has deleted the diagram node
// since we don't have a diagram anymore, lay it all out and create a new one
if (diagram.ModelElement.EntityTypes.Count < EntityDesignerDiagram.IMPLICIT_AUTO_LAYOUT_CEILING)
{
diagram.AutoLayoutDiagram();
}
EntityModelToDslModelTranslatorStrategy.CreateDefaultDiagram(viewModel.EditingContext, diagram);
}
// remove "Select All" selection
if (diagram.ActiveDiagramView != null)
{
diagram.ActiveDiagramView.Selection.Set(new DiagramItem(diagram));
}
}