private void passiveMotionMethod(AWTGLAutoDrawable window, int x, int y) {
WindowInfo info = (WindowInfo) windowToInfoMap.get(window);
// Compute ray in 3D
Vec3f rayStart = new Vec3f();
Vec3f rayDirection = new Vec3f();
computeRay(info.params, x, y, rayStart, rayDirection);
// Compute all hits
List hits = new ArrayList();
for (Iterator iter = info.manips.iterator(); iter.hasNext(); ) {
((Manip) iter.next()).intersectRay(rayStart, rayDirection, hits);
}
// Find closest one
HitPoint hp = null;
for (Iterator iter = hits.iterator(); iter.hasNext(); ) {
HitPoint cur = (HitPoint) iter.next();
if ((hp == null) || (cur.intPt.getT() < hp.intPt.getT())) {
hp = cur;
}
}
if (info.curHighlightedManip != null
&& (hp == null
|| hp.manipulator != info.curHighlightedManip
|| hp.manipPart != info.curHighlightedManipPart)) {
info.curHighlightedManip.clearHighlight();
fireUpdate(info.curHighlightedManip);
}
if (hp != null) {
if (hp.manipulator != info.curHighlightedManip
|| hp.manipPart != info.curHighlightedManipPart) {
// Highlight manip
info.curHighlightedManip = hp.manipulator;
info.curHighlightedManipPart = hp.manipPart;
info.curHighlightedManip.highlight(hp);
fireUpdate(info.curHighlightedManip);
}
} else {
info.curHighlightedManip = null;
}
}
