/**
* Finds the cursor under the given point.
*
* @param aPoint the coordinate of the potential cursor, cannot be <code>null</code>.
* @return the cursor index, or -1 if not found.
*/
protected final Cursor findCursor(final Point aPoint) {
final SignalDiagramModel model = getModel();
final long refIdx = model.locationToTimestamp(aPoint);
final double snapArea = CURSOR_SENSITIVITY_AREA / model.getZoomFactor();
for (Cursor cursor : model.getDefinedCursors()) {
if (cursor.inArea(refIdx, snapArea)) {
return cursor;
}
}
return null;
}
/** {@inheritDoc} */
@Override
public void mousePressed(final MouseEvent aEvent) {
final MouseEvent event = convertEvent(aEvent);
final Point point = event.getPoint();
if (!handlePopupTrigger(point, aEvent)) {
if (getModel().isCursorMode()) {
Cursor hoveredCursor = findCursor(point);
if (hoveredCursor != null) {
this.movingCursor = hoveredCursor.getIndex();
setMouseCursor(aEvent, SignalView.CURSOR_MOVE_CURSOR);
} else {
this.movingCursor = -1;
}
}
if ((aEvent.getModifiersEx() & InputEvent.BUTTON1_DOWN_MASK) != 0) {
this.lastClickPosition = point;
}
}
}