public static Point[] AttachPoints(Rect rect)
{
return(new Point[]
{
DiagramHelpers.GetMiddlePoint(AttachDirection.Top, rect),
DiagramHelpers.GetMiddlePoint(AttachDirection.Right, rect),
DiagramHelpers.GetMiddlePoint(AttachDirection.Bottom, rect),
DiagramHelpers.GetMiddlePoint(AttachDirection.Left, rect)
});
}
/// <summary>
/// Updates attach points belongig to this descriptor(which belongs to entityviewmodel)
/// When call it?
/// -Parent control size or location changed
/// -Any attachment view size or location changed
/// -On create(When parent view has size, when all attachnment have size
/// </summary>
public void UpdateAttachPoints()
{
if (parent.ParentDiagram == null)
{
return;
}
// update attach point ic called from external code in case of batch mode usage
if (parent.ParentDiagram.IsInBatchMode)
{
return;
}
// Console.WriteLine(parent.Name + "::UpdateAttachPoints");
if (AttachPoints.All((kv) => kv.Value.Count == 0))
{
return;
}
//if (AttachPoints.Any(kv => kv.Value.Count(a => a.Control.Width == 0) > 0))
//{
// return;
//}
UpdateAttachPointOrder();
foreach (var directionPoints in AttachPoints)
{
var direction = directionPoints.Key;
var attachPoints = directionPoints.Value;
if (attachPoints.Any(ap => ap.Width == 0))
{
}
if (attachPoints.Count == 0)
{
continue;
}
int attachSpacing = 5;
double groupWidth = attachPoints.Sum(p => p.Width) + attachSpacing * (attachPoints.Count - 1);
double groupHeight = attachPoints.Sum(p => p.Height) + attachSpacing * (attachPoints.Count - 1);
var middlePoint = GetPoint(direction, parent.Rect);
double offsetX = middlePoint.X - (groupWidth / 2.0);
double offsetY = middlePoint.Y - (groupHeight / 2.0);
foreach (var attachPoint in attachPoints.OrderBy(a => a.Order))
{
if (attachPoint.Width == 0)
{
if (attachPoint.Control != null)
{
Trace.TraceWarning("W: width of attach point is 0: {0}", attachPoint.Control.Name);
}
else
{
Trace.TraceWarning("W: no control associated with attach point");
}
}
if (direction == AttachDirection.Top || direction == AttachDirection.Bottom)
{
attachPoint.Location = new Point(offsetX + (attachPoint.Width / 2), middlePoint.Y);
offsetX += attachPoint.Width + attachSpacing;
}
else if (direction == AttachDirection.Left || direction == AttachDirection.Right)
{
attachPoint.Location = new Point(middlePoint.X, offsetY + (attachPoint.Height / 2));
offsetY += attachPoint.Height + attachSpacing;
}
if (attachPoint.Control != null)
{
attachPoint.ControlLocation = DiagramHelpers.GetAttachmentLocation(attachPoint.Control,
attachPoint.Location, attachPoint.Side);
attachPoint.Control.Location = attachPoint.ControlLocation;
}
}
}
}
