internal static void TranslateDiagram(EntityDesignerDiagram diagram, DesignerModel.Diagram modelDiagram)
{
var viewModel = diagram.ModelElement;
viewModel.ModelXRef.Add(modelDiagram, diagram, viewModel.EditingContext);
using (var t = diagram.Store.TransactionManager.BeginTransaction("Translate diagram", true))
{
// list of shapes that don't have corresponding element in model and require auto-layout
var shapesToAutoLayout = new List<ViewModelDiagram.ShapeElement>();
// try to find object in model for each shape on a diagram
foreach (var shapeElement in diagram.NestedChildShapes)
{
var entityShape = shapeElement as EntityTypeShape;
if (entityShape != null
&& entityShape.ModelElement != null)
{
var modelEntity = viewModel.ModelXRef.GetExisting(entityShape.ModelElement) as ModelEntityType;
if (modelEntity != null)
{
var modelEntityTypeShape =
modelDiagram.EntityTypeShapes.FirstOrDefault(ets => ets.EntityType.Target == modelEntity);
if (modelEntityTypeShape != null)
{
viewModel.ModelXRef.Add(modelEntityTypeShape, entityShape, viewModel.EditingContext);
var rectangle = new ViewModelDiagram.RectangleD(
modelEntityTypeShape.PointX.Value, modelEntityTypeShape.PointY.Value
, modelEntityTypeShape.Width.Value, 0.0);
entityShape.AbsoluteBounds = rectangle;
entityShape.IsExpanded = modelEntityTypeShape.IsExpanded.Value;
entityShape.FillColor = modelEntityTypeShape.FillColor.Value;
}
}
if (viewModel.ModelXRef.GetExisting(entityShape) == null)
{
shapesToAutoLayout.Add(entityShape);
}
continue;
}
var associationConnector = shapeElement as AssociationConnector;
if (associationConnector != null
&& associationConnector.ModelElement != null)
{
var modelAssociation = viewModel.ModelXRef.GetExisting(associationConnector.ModelElement) as ModelAssociation;
if (modelAssociation != null)
{
var modelAssociationConnector =
modelDiagram.AssociationConnectors.FirstOrDefault(ac => ac.Association.Target == modelAssociation);
if (modelAssociationConnector != null)
{
viewModel.ModelXRef.Add(modelAssociationConnector, associationConnector, viewModel.EditingContext);
TranslateAssociationConnectors(associationConnector, modelAssociationConnector, shapesToAutoLayout);
}
}
continue;
}
var inheritanceConnector = shapeElement as InheritanceConnector;
if (inheritanceConnector != null
&& inheritanceConnector.ModelElement != null)
{
var entityTypeBase = viewModel.ModelXRef.GetExisting(inheritanceConnector.ModelElement) as EntityTypeBaseType;
var modelEntity = entityTypeBase.Parent as ModelEntityType;
if (modelEntity != null)
{
var modelInheritanceConnector =
modelDiagram.InheritanceConnectors.FirstOrDefault(ic => ic.EntityType.Target == modelEntity);
if (modelInheritanceConnector != null)
{
viewModel.ModelXRef.Add(modelInheritanceConnector, inheritanceConnector, viewModel.EditingContext);
TranslateInheritanceConnectors(inheritanceConnector, modelInheritanceConnector, shapesToAutoLayout);
}
}
continue;
}
}
diagram.AutoLayoutDiagram(shapesToAutoLayout);
// initiate zoom level, grid and scalar property options
diagram.ZoomLevel = modelDiagram.ZoomLevel.Value;
diagram.ShowGrid = modelDiagram.ShowGrid.Value;
diagram.SnapToGrid = modelDiagram.SnapToGrid.Value;
diagram.DisplayNameAndType = modelDiagram.DisplayType.Value;
diagram.DiagramId = modelDiagram.Id.Value;
diagram.Title = modelDiagram.Name.Value;
t.Commit();
}
}
public void TransactionCommit(EntityDesignerDiagram diagram)
{
//If this is a Drag & Drop from the SE transaction, then arrange the new elements
if (_autoArrangeInfo.Tracking)
{
if (_autoArrangeInfo.Objects.Count > 0
|| _autoArrangeInfo.HiddenObjects.Count > 0)
{
//Arrange the new elemenst before the transaction finishes:
using (var t = diagram.Store.TransactionManager.BeginTransaction(Resources.Tx_LayoutDiagram))
{
//Place single object where the user dropped, and multiple get autoarranged
if (_autoArrangeInfo.Objects.Count > 0)
{
//Place the first entity-type-shape to where the user released the mouse and auto layout the rest.
var haveDropPoint = (!_autoArrangeDropPoint.IsEmpty);
var shapesToAutoLayout = new List<ShapeElement>();
var hasSetUserDefinedPosition = false;
foreach (var shape in _autoArrangeInfo.Objects)
{
var firstShape = shape as EntityTypeShape;
if (haveDropPoint
&& firstShape != null
&& !hasSetUserDefinedPosition)
{
firstShape.Location = _autoArrangeDropPoint;
hasSetUserDefinedPosition = true;
}
else
{
shapesToAutoLayout.Add(shape);
}
}
if (shapesToAutoLayout.Count > 0)
{
diagram.AutoLayoutDiagram(shapesToAutoLayout);
}
t.Commit();
}
_autoArrangeInfo.Objects.Clear();
}
//Add hidden objects to 0,0
if (_autoArrangeInfo.HiddenObjects.Count > 0)
{
foreach (var se in _autoArrangeInfo.HiddenObjects)
{
var cs = se as EntityTypeShape;
cs.Location = new PointD(0, 0);
}
_autoArrangeInfo.HiddenObjects.Clear();
}
}
}
}
