package image.filters; 

import java.awt.BorderLayout; 
import java.awt.Container; 
import java.awt.event.ActionEvent; 
import java.awt.event.ActionListener; 
import java.nio.ByteBuffer; 

import javax.swing.JButton; 
import javax.swing.JFrame; 
import javax.swing.JPanel; 

import marvin.gui.MarvinImagePanel; 
import marvin.image.MarvinImage; 
import marvin.image.MarvinImageMask; 
import marvin.io.MarvinImageIO; 
import marvin.plugin.MarvinImagePlugin; 
import marvin.util.MarvinPluginLoader; 

public class Filters extends JFrame
{ 
    private MarvinImagePanel     imagePanel; 
    private MarvinImage         image,  
                    backupImage; 
     
    private JPanel             panelBottom; 
     
     
    private JButton         buttonGray,  
                    buttonSepia,  
                    buttonInvert,  
                    buttonReset; 
     
    private MarvinImagePlugin     imagePlugin; 
     
    public Filters() 
    { 
        super("Filters Sample"); 
         
        // Create Graphical Interface 
        ButtonHandler buttonHandler = new ButtonHandler(); 
        buttonGray = new JButton("Gray"); 
        buttonGray.addActionListener(buttonHandler); 
        buttonSepia = new JButton("Sepia"); 
        buttonSepia.addActionListener(buttonHandler); 
        buttonInvert = new JButton("Invert"); 
        buttonInvert.addActionListener(buttonHandler); 
        buttonReset = new JButton("Reset"); 
        buttonReset.addActionListener(buttonHandler); 
         
        panelBottom = new JPanel(); 
        panelBottom.add(buttonGray); 
        panelBottom.add(buttonSepia); 
        panelBottom.add(buttonInvert); 
        panelBottom.add(buttonReset); 
         
        // ImagePanel 
        imagePanel = new MarvinImagePanel(); 
         
        Container l_c = getContentPane(); 
        l_c.setLayout(new BorderLayout()); 
        l_c.add(imagePanel, BorderLayout.NORTH); 
        l_c.add(panelBottom, BorderLayout.SOUTH); 
         
        // Load image 
        loadImage(); 
         
        imagePanel.setImage(image); 
         
        setSize(320,600); 
        setVisible(true);     
    } 
     
    private void loadImage(){ 
        image = MarvinImageIO.loadImage("./res/arara.jpg"); 
        backupImage = image.clone(); 
    } 
     
    public static void main(String args[]){ 
        Filters t = new Filters(); 
        t.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
    } 
     
    private class ButtonHandler implements ActionListener
    { 
        public void actionPerformed(ActionEvent a_event){ 
            image = backupImage.clone(); 
            if(a_event.getSource() == buttonGray){ 
                imagePlugin = MarvinPluginLoader.loadImagePlugin("org.marvinproject.image.color.grayScale.jar"); 
                imagePlugin.process(image, image); 
            } 
            else if(a_event.getSource() == buttonSepia){ 
                imagePlugin = MarvinPluginLoader.loadImagePlugin("org.marvinproject.image.color.sepia.jar"); 
                imagePlugin.setAttribute("hsIntensidade", 50);                 
                imagePlugin.process(image, image); 
            } 
            else if(a_event.getSource() == buttonInvert){ 
                imagePlugin = MarvinPluginLoader.loadImagePlugin("org.marvinproject.image.color.invert.jar"); 
                imagePlugin.process(image, image); 
            } 
            image.update(); 
            imagePanel.setImage(image); 
        } 
    } 
}