This is a part of my java code, in this code I have written that when I click the button the value of JProgressBar should becomes 0 and stringPainted(); becomes true, but "string painted" is not visible when I click the button, please help.
import java.awt.Color;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.Graphics;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JProgressBar;
public class R implements ActionListener {
static int y;
CustomProgressBar b = new CustomProgressBar();
public static void main(String arg[]) throws Exception {
new R();
}
public R() throws Exception {
JFrame f = new JFrame();
JButton btn = new JButton("Click");
f.setExtendedState(JFrame.MAXIMIZED_BOTH);
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setUndecorated(true);
f.setLayout(new FlowLayout());
btn.addActionListener(this);
f.add(b);
f.add(btn);
f.setVisible(true);
}
class CustomProgressBar extends JProgressBar{
private static final long serialVersionUID = 1L;
private boolean isStringToBePainted = false;
public CustomProgressBar() {
super(JProgressBar.VERTICAL,0,100);
}
@Override
protected void paintComponent(Graphics g) {
super.paintComponent(g);
if(isStringToBePainted ) {
Dimension size = CustomProgressBar.this.getSize();
if( CustomProgressBar.this.getPercentComplete()<0.9 )
R.y = (int)( size.height - size.height * CustomProgressBar.this.getPercentComplete() );
String text = getString();
g.setColor(Color.BLACK );
g.drawString(text, 0, R.y);
}
}
@Override
public void setStringPainted(boolean b) {
isStringToBePainted=b;
}
}
@Override
public void actionPerformed(ActionEvent e) {
b.setValue(0);
b.setStringPainted(true);
}
}
