Examples with TreeLayoutConstraint org.yakindu.base.gmf.runtime.treelayout.TreeLayoutConstraint used on opensource projects

Example 1 with TreeLayoutConstraint

use of org.yakindu.base.gmf.runtime.treelayout.TreeLayoutConstraint in project statecharts by Yakindu.

the class TreeLayoutEditPolicy method getConstraintFor.

@Override
protected Object getConstraintFor(ChangeBoundsRequest request, GraphicalEditPart child) {
    if (request instanceof AlignmentRequest) {
        return super.getConstraintFor(request, child);
    }
    final Rectangle rect = (Rectangle) super.getConstraintFor(request, child);
    final Rectangle cons = getCurrentConstraintFor(child);
    final int newTreePosition = TreeLayoutUtil.getNewTreeNodePosition(request.getLocation(), TreeLayoutUtil.getSiblings((IGraphicalEditPart) child));
    if (cons instanceof TreeLayoutConstraint) {
        final TreeLayoutConstraint treeLayoutConstraint = (TreeLayoutConstraint) cons;
        return new TreeLayoutConstraint(rect, treeLayoutConstraint.isRoot(), newTreePosition);
    }
    return new TreeLayoutConstraint(rect, false, newTreePosition);
}