Balancebar.java

package de.zigapeda.flowspring.gui;

import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.MouseMotionListener;

import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JProgressBar;
import javax.swing.Painter;
import javax.swing.UIManager;

import de.zigapeda.flowspring.Main;
import de.zigapeda.flowspring.controller.Settings;

public class Balancebar extends JPanel implements MouseListener, MouseMotionListener {
	private static final long serialVersionUID = -1418651840977914483L;
	private JProgressBar balancebar;
	private JLabel balance;
	
	public Balancebar() {
		super();
		this.setLayout(null);
		this.balancebar = new BalanceProgressBar();
		this.balance = new JLabel("balance");
		this.balancebar.setBounds(0, 14, 100, 14);
		this.balance.setBounds(5, 0, 95, 14);
		this.balancebar.setMaximum(100);
		this.balancebar.addMouseListener(this);
		this.balancebar.addMouseMotionListener(this);
		String balance = Settings.loadSettings("balance");
		if(balance != null) {
			this.balancebar.setValue(Integer.valueOf(balance));
		} else {
			this.balancebar.setValue(50);
		}
		this.add(this.balancebar);
		this.add(this.balance);
	}
	
	public int getValue() {
		return this.balancebar.getValue();
	}

	public void mouseClicked(MouseEvent e) {

	}

	public void mousePressed(MouseEvent e) {
		this.balancebar.setValue(e.getX());
//		Main.getWindow().getPlayercontroller().setPan(this.balancebar.getValue());
		this.balancebar.repaint();
	}

	public void mouseReleased(MouseEvent e) {
		
	}

	public void mouseEntered(MouseEvent e) {
		
	}

	public void mouseExited(MouseEvent e) {
		
	}

	public void mouseDragged(MouseEvent e) {
		this.balancebar.setValue(e.getX());
//		Main.getWindow().getPlayercontroller().setPan(this.balancebar.getValue());
		this.balancebar.repaint();
	}

	public void mouseMoved(MouseEvent e) {
		
	}
}

class BalanceProgressBar extends JProgressBar {
	private static final long serialVersionUID = 7161447457324882101L;
	
	public int getValue() {
		if(super.getValue() < 45 || super.getValue() > 55) {
			return super.getValue();
		}
		return 50;
	}

	@SuppressWarnings("unchecked")
	public void paint(Graphics g) {
		Painter<JProgressBar> p = (Painter<JProgressBar>) UIManager.get("ProgressBar[Enabled].backgroundPainter");
		p.paint((Graphics2D) g, this, 100, 14); 
        p = (Painter<JProgressBar>) UIManager.get("ProgressBar[Enabled+Finished].foregroundPainter");
        int v = this.getValue();
        if(v < 45) {
        	v = 45 - v;
            p.paint((Graphics2D) g.create(45 - v, 0, 10 + v, 14), this, 10 + v, 14);
        } else if(v > 55) {
        	v = v - 55;
            p.paint((Graphics2D) g.create(45, 0, 10 + v, 14), this, 10 + v, 14);
        } else {
            p.paint((Graphics2D) g.create(45, 0, 10, 14), this, 10, 14);
        }
    }
}