how can you make a progress bar without using JProgressBar?

Question

i am looking at putting a progress bar into a game i am making with a count down from a random number between 5 and 20 down to 0. this is my code so far:

package Sof

Answer 1

Here is what I made for my game. Feel free to utilize this anyone who may find this question like I did.

Enjoy.

import java.awt.Canvas;
import java.awt.Color;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics;

import javax.swing.JPanel;

import com.jayavon.game.client.MyClient;

public class CustomJProgressBar extends JPanel {
    private static final long serialVersionUID = 1L;
    private Color color;
    private int width, height;
    private double minimum = 0.0;
    private double maximum = 100.0;
    private double value = 100.0;
    private Font font = MyClient.theme_font.deriveFont(Font.PLAIN, 12);

    public CustomJProgressBar(Color color) {
        super();
        this.color = color;
        setBounds(0, 0, width, height);
        setFont(font);
    }

    @Override
    protected void paintComponent(Graphics g) {
        super.paintComponent(g);

        //border
        g.setColor(MyClient.THEME_LIGHT_TEXT);
        g.drawRect(0, 0, getWidth()-1, getHeight()-1);

        //progress
        int drawAmount = (int) (((value - minimum) / (maximum - minimum)) * getWidth());
        g.setColor(color);
        g.fillRect(1, 1, drawAmount-2, getHeight()-2); //-2 to account for border

        //string painting
        String stringToPaint = (int)value + "/" + (int)maximum;
        Canvas c = new Canvas();
        FontMetrics fm = c.getFontMetrics(font);
        final int stringWidth = fm.stringWidth(stringToPaint);
        final int stringHeight = fm.getHeight();
        g.setColor(MyClient.THEME_LIGHT_TEXT);
        g.drawString(stringToPaint, (getWidth()/2) - (stringWidth/2), ((getHeight()/2) + (stringHeight/2))-2); //-2 to account for border
    }

    public void setColor(Color _color){
        this.color = _color;
    }

    public void setMinimum(double _minimum){
        this.minimum = _minimum;
    }

    public void setMaximum(double _maximum){
        this.maximum = _maximum;
    }

    public void setValue(double _value){
        this.value = _value;
    }
}