private AssociationLabel CreateFellowLabel(AssociationLabelViewHelper labelViewHelper)
{
AssociationLabel associationLabel = new AssociationLabel(this.XCaseCanvas, labelViewHelper);
Junction.XCaseCanvas.Children.Add(associationLabel);
associationLabel.Text = " ";
associationLabel.SnapTo(Junction.Points.Last(), false);
associationLabel.UpdateLayout();
Canvas.SetZIndex(associationLabel, Canvas.GetZIndex(Junction.SourceElement) + 1);
associationLabel.PSM_Association = this;
return(associationLabel);
}
private AssociationLabel CreateFellowLabel(AssociationLabelViewHelper labelViewHelper)
{
AssociationLabel associationLabel = new AssociationLabel(this.XCaseCanvas, labelViewHelper);
associationLabel.Association = this.Association;
Junction.XCaseCanvas.Children.Add(associationLabel);
associationLabel.Text = " ";
associationLabel.SnapTo(this, false);
associationLabel.AssociationEnd = this.AssociationEnd;
associationLabel.UpdateLayout();
Canvas.SetZIndex(associationLabel, Canvas.GetZIndex(Junction.SourceElement) + 1);
associationLabel.Dropped += (() => LabelDropped(associationLabel));
return(associationLabel);
}
private static bool LabelInBadPosition(AssociationLabel label, Rect elementBounds)
{
const int rectangleCorrectionH = 3;
const int rectangleCorrectionV = 6;
Rect bounds = label.GetBounds();
bounds.X += rectangleCorrectionV;
bounds.Y += rectangleCorrectionH;
bounds.Width = Math.Max(bounds.Width - 2 * rectangleCorrectionV, 0);
bounds.Height = Math.Max(bounds.Height - 2 * rectangleCorrectionH, 0);
if (bounds.IntersectsWith(elementBounds))
{
return(true);
}
return(false);
}
private void LabelDropped(AssociationLabel label)
{
IConnectable junctionElement;
if (Junction.StartPoint == this)
{
junctionElement = (IConnectable)Junction.SourceElement;
}
else
{
junctionElement = (IConnectable)Junction.TargetElement;
}
Rect elementBounds = junctionElement.GetBounds();
if (LabelInBadPosition(label, elementBounds))
{
AdjustLabelsPositions();
}
}