protected Size calculateRectangleSize(MouseEvent e, Point fixedPoint, Rectangle rectangle) {
Point mouseLoc = transformPoint(viewToWorld(), new Point(e.getX(), e.getY()));
// the size of the rectangle is the difference between the X's and Y's
return new Size(
abs(fixedPoint.getCoordinate(X) - mouseLoc.getCoordinate(X)),
abs(fixedPoint.getCoordinate(Y) - mouseLoc.getCoordinate(Y)));
}
protected Point calculateRectangleLocation(MouseEvent e, Point fixedPoint, Rectangle rectangle) {
Point mouseLoc = transformPoint(viewToWorld(), new Point(e.getX(), e.getY()));
// get the difference between the new point and the fixed point
Size diff =
new Size(
mouseLoc.getCoordinate(X) - fixedPoint.getCoordinate(X),
mouseLoc.getCoordinate(Y) - fixedPoint.getCoordinate(Y));
// the center of the rectangle is located at the fixed point plus half the
// difference to the new point
return new Point(
fixedPoint.getCoordinate(X) + diff.getLength(WIDTH) / 2,
fixedPoint.getCoordinate(Y) + diff.getLength(HEIGHT) / 2);
}