Creating and Enriching Graphical User Interfaces - Beginning Java 7 - page 669

{

@Override
public

void

mousePressed(MouseEvent me)
{

if (!rect.contains(me.getX(),

me.getY()))

return;
dragX = me.getX();
dragY = me.getY();
dragging = true;

}
@Override
public

void

mouseReleased(MouseEvent me)
{

dragging = false;

}

});
addMouseMotionListener(new MouseMotionAdapter()
{

@Override
public void

mouseDragged(MouseEvent me)

{

if (!dragging)
return;
double x =

rect.getX()+me.getX()-dragX;

double y =

rect.getY()+me.getY()-dragY;

rect.setRoundRect(x, y,

rect.getWidth(),

rect.getHeight(),
rect.getArcWidth(),
rect.getArcHeight());