WalletStatus.java

package gui.status;

import java.awt.Image;
import java.awt.image.BufferedImage;
import java.io.File;
import java.util.Observable;
import java.util.Observer;

import javax.imageio.ImageIO;
import javax.swing.ImageIcon;
import javax.swing.JLabel;

import qora.wallet.Wallet;
import utils.ObserverMessage;
import controller.Controller;

@SuppressWarnings("serial")
public class WalletStatus extends JLabel implements Observer
{
	private ImageIcon unlockedIcon;
	private ImageIcon lockedIcon;
	
	public WalletStatus()
	{
		super();
		
		try
		{	
			//LOAD IMAGES
			BufferedImage unlockedImage = ImageIO.read(new File("images/wallet/unlocked.png"));
			this.unlockedIcon = new ImageIcon(unlockedImage.getScaledInstance(20, 16, Image.SCALE_SMOOTH));
			
			BufferedImage lockedImage = ImageIO.read(new File("images/wallet/locked.png"));
			this.lockedIcon = new ImageIcon(lockedImage.getScaledInstance(20, 16, Image.SCALE_SMOOTH));
			
			//LISTEN ON WALLET
			Controller.getInstance().addWalletListener(this);
		}
		catch(Exception e)
		{
			e.printStackTrace();
		}
	}

	@Override
	public void update(Observable arg0, Object arg1) 
	{
		ObserverMessage message = (ObserverMessage) arg1;
		
		if(message.getType() == ObserverMessage.WALLET_STATUS)
		{
			int status = (int) message.getValue();
			
			if(status == Wallet.STATUS_UNLOCKED)
			{
				this.setIcon(this.unlockedIcon);
				this.setText("Wallet is unlocked");
			}
			else
			{
				this.setIcon(this.lockedIcon);
				this.setText("Wallet is locked");
			}
		}		
	}
}