public Figure findFigure(Point2D.Double p) {
Collection<Figure> c = quadTree.findContains(p);
switch (c.size()) {
case 0:
return null;
case 1:
{
Figure f = c.iterator().next();
return (f.contains(p)) ? f : null;
}
default:
{
for (Figure f : getFiguresFrontToBack()) {
if (c.contains(f) && f.contains(p)) return f;
}
return null;
}
}
}
public Figure findFigureExcept(Point2D.Double p, Collection ignore) {
Collection<Figure> c = quadTree.findContains(p);
switch (c.size()) {
case 0:
{
return null;
}
case 1:
{
Figure f = c.iterator().next();
return (!ignore.contains(f) || !f.contains(p)) ? null : f;
}
default:
{
for (Figure f : getFiguresFrontToBack()) {
if (!ignore.contains(f) && f.contains(p)) return f;
}
return null;
}
}
}