public void mouseClicked(MouseEvent e) {
log.info("" + hot.idx);
if (e.getButton() == MouseEvent.BUTTON1) {
int mask = 1 << hot.idx;
if (e.isShiftDown()) {
int old = panel.getSelectedMask();
if ((mask & old) == 0) mask |= old;
else mask = ~mask & old;
}
panel.setSelectedMask(mask);
}
}
public void mouseMoved(MouseEvent e) {
// check if the mouse is over something hot:
// - a speed handle
// - a rock
tmp.setLocation(e.getX(), e.getY());
panel.findHotDc(tmp, hot);
}
public void mouseDragged(MouseEvent e) {
if (e.getModifiersEx() == MouseEvent.BUTTON1_DOWN_MASK) {
if (RockEditDisplay.HotObject.ROCK.equals(hot.what)) {
// move a rock
final Point2D wc = getWc(e, tmp);
int idx = PositionSet.findRockIndexTouchingRockAtPos(rocks, wc, hot.idx);
if (idx >= 0) {
log.debug("new position blocked");
} else {
rocks.getRock(hot.idx).setLocation(wc);
rocks.notifyChange();
log.debug("relocated");
}
}
if (RockEditDisplay.HotObject.SPEED.equals(hot.what)) {
// change the speed of a rock
final Point2D wc = getWc(e, tmp);
panel.setSpeedSpot(hot.idx, wc);
}
}
}
/**
* Get the world-coordinates where the mouse event happened.
*
* @param e
* @param dst wc container. <code>null</code> creates a <code>Point2D.Float</code>
* @return the world-coordinate location
*/
protected Point2D getWc(final MouseEvent e, Point2D dst) {
if (dst == null) dst = new Point2D.Float(e.getX(), e.getY());
else dst.setLocation(e.getX(), e.getY());
return panel.dc2wc(dst, dst);
}