public NodeLayout ReadNodeLayout( string nodeId )
{
var layout = new NodeLayout( nodeId );
layout.Center = ReadPoint();
layout.Width = myReader.ReadDouble() / 2;
layout.Height = myReader.ReadDouble() / 2;
return layout;
}
// TODO: we should interpret the shape/style/color attributes ...
public void Draw( NodeLayout layoutState )
{
var style = myPresentation.GetPropertySetFor<NodeStyle>().Get( Owner.Id );
var label = myPresentation.GetPropertySetFor<Caption>().Get( Owner.Id );
Visual = new DrawingVisual();
var dc = Visual.RenderOpen();
dc.DrawEllipse( style.FillColor, new Pen( style.BorderColor, 0.016 ), layoutState.Center, layoutState.Width, layoutState.Height );
var tx = new FormattedText( label.DisplayText,
CultureInfo.InvariantCulture,
FlowDirection.LeftToRight,
myFont,
layoutState.Height * 0.7, Brushes.Black );
dc.DrawText( tx, new Point( layoutState.Center.X - tx.Width / 2, layoutState.Center.Y - tx.Height / 2 ) );
dc.Close();
Visual.SetValue( GraphItemProperty, Owner );
}
public void Add(NodeLayout layout)
{
myNodeLayouts.Add(layout.OwnerId, layout);
OnCollectionChanged(new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Add, layout));
}