/// 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));
}
}
public void EnsureDiagramIsCreated(EFArtifact artifact)
{
if (RootElement != null)
{
var modelRoot = RootElement as EntityDesignerViewModel;
if (modelRoot != null)
{
var diagram = modelRoot.GetDiagram();
Debug.Assert(diagram != null, "DSL Diagram should have been created by now");
if (diagram != null)
{
Debug.Assert(artifact.DesignerInfo() != null, "artifact.DesignerInfo should not be null");
Debug.Assert(artifact.DesignerInfo().Diagrams != null, "artifact.DesignerInfo.Diagrams should not be null");
if (artifact.DesignerInfo() != null &&
artifact.DesignerInfo().Diagrams != null)
{
var saveDiagramDocument = false;
if (artifact.DesignerInfo().Diagrams.FirstDiagram == null)
{
// layout is very slow. Only auto-layout if less than a max number of types
if (diagram.ModelElement.EntityTypes.Count < EntityDesignerDiagram.IMPLICIT_AUTO_LAYOUT_CEILING)
{
diagram.AutoLayoutDiagram();
}
try
{
EntityDesignerViewModel.RespondToModelChanges = false;
EntityModelToDslModelTranslatorStrategy.CreateDefaultDiagram(modelRoot.EditingContext, diagram);
// Ensure that DSL Diagram and Model Diagram are in sync:
// - Update xref between 2 diagrams
// - Propagetes model diagram info to DSL Diagram.
var modelDiagram = artifact.DesignerInfo().Diagrams.FirstDiagram;
Debug.Assert(modelDiagram != null, "modelDiagram should not be null");
if (modelDiagram != null)
{
ModelTranslatorContextItem.GetEntityModelTranslator(EditingContext)
.SynchronizeSingleDslModelElement(modelRoot, modelDiagram);
}
}
finally
{
EntityDesignerViewModel.RespondToModelChanges = true;
}
// save the file after adding Diagram element so it won't open as a dirty document
saveDiagramDocument = true;
}
if (saveDiagramDocument)
{
var rdt = new RunningDocumentTable(ServiceProvider);
rdt.SaveFileIfDirty(FileName);
}
_isDiagramLoaded = true;
}
}
}
}
}
