codenameone

Date currentTime = new Date();
long lastRenderedTime = 0;

@Override
public boolean animate() {
    if ( System.currentTimeMillis()/1000 != lastRenderedTime/1000){
        currentTime.setTime(System.currentTimeMillis());
        return true;
    }
    return false;

codenameone

public void start(){
    this.getComponentForm().registerAnimated(this);
}

public void stop(){
    this.getComponentForm().deregisterAnimated(this);
}

codenameone

AnalogClock clock = new AnalogClock();
parent.addComponent(clock);
clock.start();

codenameone

// Find out the current translation
int currX = g.getTranslateX();
int currY = g.getTranslateY();

// Reset the translation to zeroes
g.translate(-currX, -currY);

// Now we are working in absolute screen coordinates
g.drawRect(10, 10, 100, 100);

codenameone

class RectangleComponent extends Component {
    public void paint(Graphics g){
        g.setColor(0x0000ff);
        g.drawRect(getX()+5, getY()+5, getWidth()-10, getHeight()-10);
    }
}

codenameone

    class RectangleComponent extends Component {

        @Override
        protected Dimension calcPreferredSize() {
            return new Dimension(250,250);
        }

        public void paint(Graphics g) {
            g.setColor(0x0000ff);
            g.rotate((float) (Math.PI / 4.0));

codenameone

    class MyForm extends Form {

        public MyForm() {
            super("Rectangle Rotations");
            for ( int i=0; i< 10; i++ ){
                this.addComponent(new RectangleComponent());
            }
        }
    }

codenameone

        public void paint(Graphics g) {
            g.setColor(0x0000ff);
            g.rotate((float)(Math.PI/4.0), getAbsoluteX(), getAbsoluteY());
            g.drawRect(getX() + 5, getY() + 5, getWidth() - 10, getHeight() - 10);
            g.rotate(-(float) (Math.PI / 4.0), getAbsoluteX(), getAbsoluteY());
        }

codenameone

public void paint(Graphics g) {
    g.setColor(0x0000ff);
    g.rotate(
        (float)(Math.PI/4.0),
        getAbsoluteX()+getWidth()/2,
        getAbsoluteY()+getHeight()/2
    );
    g.drawRect(getX() + 5, getY() + 5, getWidth() - 10, getHeight() - 10);
    g.rotate(
        -(float)(Math.PI/4.0),

codenameone

public void pointerPressed(int x, int y) {
    addPoint(x-getParent().getAbsoluteX(), y-getParent().getAbsoluteY());
}