/** Inform all registered MeasureToolListeners that the distance is not valid anymore. */
private void reportClearDistance() {
Iterator iterator = this.listeners.iterator();
while (iterator.hasNext()) {
MeasureToolListener listener = (MeasureToolListener) iterator.next();
listener.clearDistance();
}
}
/** Inform all registered MeasureToolListeners of a new distance. */
private void reportDistance(boolean finalDistance) {
if (dragStartPos == null || dragCurrentPos == null) return;
final double dx = dragCurrentPos.x - dragStartPos.x;
final double dy = dragCurrentPos.y - dragStartPos.y;
final double d = Math.sqrt(dx * dx + dy * dy);
final double angle = Math.atan2(dy, dx);
Iterator iterator = this.listeners.iterator();
while (iterator.hasNext()) {
MeasureToolListener listener = (MeasureToolListener) iterator.next();
if (finalDistance) listener.newDistance(d, angle, this.mapComponent);
else listener.distanceChanged(d, angle, this.mapComponent);
}
}