/// <override></override>
public override Shape Clone()
{
Shape result = new RectangularLine(Type, (Template)null);
result.CopyFrom(this);
return(result);
}
internal static Shape CreateInstance(ShapeType shapeType, Template template)
{
Shape result = new RectangularLine(shapeType, template);
return(result);
}
private LabelDirection GetLabelDirectionByRelationshipEntities(RectangularLine fk, IEnumerable<TableModel> tablesContainer)
{
List<EntitySymbol> ents = GetEntitiesByRelationship(fk);
var TablesEntities = tablesContainer.Where(t => ents.Select(ta => ta.Tag).Contains(t.Name)).ToList();
TableModel ManyEntity = TablesEntities.FirstOrDefault(k => k.MetaData.ForeignKeys.Any(l => l.IsParent && TablesEntities.Select(i => i.Name).Contains(l.Reference.TableName)));
TableModel OneEntity = TablesEntities.FirstOrDefault(k => k.MetaData.ForeignKeys.Any(l => !l.IsParent && TablesEntities.Select(i => i.Name).Contains(l.Reference.TableName)));
//Workaround for inverse foreign keys that couldn't be retrieved
if (OneEntity == null)
OneEntity = TablesEntities.Single(t => t.Name != ManyEntity.Name);
var OneEntityX = OneEntity.ShapePlacementInfo.Location.X;
var ManyEntityX = ManyEntity.ShapePlacementInfo.Location.X;
if (OneEntityX < ManyEntityX)
return LabelDirection.Left;
if (ManyEntityX < OneEntityX)
return LabelDirection.Right;
return LabelDirection.Left;
}
private List<EntitySymbol> GetEntitiesByRelationship(RectangularLine selectedEntity)
{
var shapes = GetAllEntities();
var tagLength = selectedEntity.Tag.ToString().Length;
return shapes.Where(t => selectedEntity.Tag.ToString().Substring(0, tagLength - 1).Split('|').Contains(t.Tag.ToString())).ToList();
}
private Point GetLineApproximateMiddleConnectionPoint(RectangularLine fk)
{
var rect = fk.GetBoundingRectangle(true);
int startX = rect.X;
int startY = rect.Y;
int endX = startX + rect.Width;
int endY = startY + rect.Height;
Point intersectPointY = new Point();
for (int y = startY; y <= endY; y++)
{
Point p = new Point((startX + endX)/2, y);
if (!fk.ContainsPoint(p.X, p.Y)) continue;
intersectPointY = p;
break;
}
return intersectPointY;
}
public DbRelationship GetDBRelByRelationshipLine(RectangularLine line, List<TableModel> tablesContainer)
{
var split = line.Tag.ToString().TrimEnd('R').Split('|');
var rel = GetRelationshipByTables(tablesContainer, split[0], split[1]);
return rel;
}
private void DrawRelationshipLabel(Tuple<string, string> kvpLink, RectangularLine fk, List<TableModel> tablesContainer, bool addToRepository)
{
//Get a point in the middle of the line and create there a control point
Point fkMiddlePoint = GetLineApproximateMiddleConnectionPoint(fk);
var retPoint = fk.AddConnectionPoint(fkMiddlePoint.X, fkMiddlePoint.Y);
//If i have a Parent-Children kind of association (say, a tree representation in the DB model),
//the graphic would go boom so i just ignore it
if (kvpLink.Item1 == kvpLink.Item2)
return;
var rel = GetRelationshipByTables(tablesContainer, kvpLink.Item1, kvpLink.Item2);
var direction = GetLabelDirectionByRelationshipEntities(fk, tablesContainer);
Label lbl = (Label) LblShape.CreateInstance();
if (!rel.Generate)
{
lbl.CharacterStyle = (ICharacterStyle) Project.Design.FindStyleByName("LabelStyleNotGen", typeof (CharacterStyle));
fk.LineStyle = (ILineStyle) Project.Design.FindStyleByName("RelNotGenerated", typeof (LineStyle));
}
else
{
lbl.CharacterStyle = (ICharacterStyle) Project.Design.FindStyleByName("LabelStyle", typeof (CharacterStyle));
fk.LineStyle = (ILineStyle) Project.Design.FindStyleByName("RelGenerated", typeof (LineStyle));
}
if (rel.RelType == DbRelationshipType.OneToOne)
lbl.Text = "<-1...1->";
else
{
if (direction == LabelDirection.Right)
lbl.Text = "--N...1->";
else if (direction == LabelDirection.Left)
lbl.Text = "<-1...N-";
}
lbl.Tag = String.Format("{0}|{1}L", kvpLink.Item1, kvpLink.Item2);
lbl.CharacterStyle = Project.Design.CharacterStyles["LabelStyle"];
lbl.Connect(lbl.GetControlPointIds(ControlPointCapabilities.Glue).ToList()[0], fk, retPoint);
TableDiagram.Shapes.Add(lbl, Project.Repository.ObtainNewBottomZOrder(TableDiagram));
if (addToRepository)
Repository.Insert((Shape) lbl, TableDiagram);
}
internal static Shape CreateInstance(ShapeType shapeType, Template template)
{
Shape result = new RectangularLine(shapeType, template);
return result;
}
/// <override></override>
public override Shape Clone()
{
Shape result = new RectangularLine(Type, (Template)null);
result.CopyFrom(this);
return result;
}
