package Postscript;
/*
 * Copyright 1998 by Sun Microsystems, Inc.,
 * 901 San Antonio Road, Palo Alto, California, 94303, U.S.A.
 * All rights reserved.
 *
 * This software is the confidential and proprietary information
 * of Sun Microsystems, Inc. ("Confidential Information").  You
 * shall not disclose such Confidential Information and shall use
 * it only in accordance with the terms of the license agreement
 * you entered into with Sun.
 */


import java.util.*;
import java.io.*;
import java.net.*;

import java.awt.*;
import java.awt.event.*;
import java.awt.geom.*;
import javax.swing.*;
import javax.swing.border.*;

import com.sun.jimi.core.*;
import java.awt.image.BufferedImage;
import com.sun.jimi.core.raster.*;
//import Postscript.interpreter.*;
//import Postscript.Util.*;

import interpreter.*;
import Util.*;


//import javax.swing.border.*;
//import javax.swing.event.*;
//import Postscript.Controller.*;


/**
 * Render postscript files with the Java 2D(TM) api.  This demo is not meant 
 * to be a fully compliant postscript interpreter.  The demo works with the 
 * provided postscript files and simple postscript files like the examples 
 * from "Postscript By Example".  Most of the language control operators are 
 * implemented and about 20% of the graphic operators are implemented.
 *
 * @version @(#)PostscriptViewer.java	1.3	98/12/17
 * @author Uwe Hoffmann
 */
public class PostscriptViewer extends JApplet implements ActionListener, Runnable {

    static String postscriptFiles[] = {"plotfile"};
    static JComboBox combo;
    static URL url;
    JPanel p1;
    Demo demo;
	private static Graphics2D g2;


    public void init() {
	
		
        p1 = new JPanel(new BorderLayout());
        EmptyBorder eb = new EmptyBorder(5,20,10,20);
        p1.setBorder(eb);
        p1.setBackground(Color.gray);
        //combo = new JComboBox();
        //combo.setLightWeightPopupEnabled(false);
		/*
        for (int i = 0; i < postscriptFiles.length; i++) {
            combo.addItem(postscriptFiles[i]);
        }
		*/
        //combo.addActionListener(this);
        //p1.add("West", combo);

        p1.setToolTipText("click to start/stop iterating");
        p1.addMouseListener(new MouseAdapter() {
            public void mouseClicked(MouseEvent e) {
                if (demo.thread == null) demo.start(); else demo.stop();
            }
        });
        getContentPane().add("South", p1);

        JPanel p2 = new JPanel(new BorderLayout());
        eb = new EmptyBorder(20,20,5,20);
        BevelBorder bb = new BevelBorder(BevelBorder.LOWERED);
        p2.setBorder(new CompoundBorder(eb,bb));
        p2.setBackground(Color.gray);
        p2.add(demo = new Demo());

        getContentPane().add("Center", p2);

        url = PostscriptViewer.class.getResource("../library/neighbor/plots/plotfile");

        JButton saveButton = new JButton("Save Image");
		saveButton.addActionListener(this);
		saveButton.setActionCommand("save");
		saveButton.setEnabled(true);
		p1.add("West", saveButton);
		
		
		JButton closeButton = new JButton("Close");
		closeButton.addActionListener(this);
		closeButton.setActionCommand("close");
		closeButton.setEnabled(true);
		p1.add("East", closeButton);


       
		//JLabel pname = new JLabel("Parameter set  ");
		//JLabel rname = new JLabel("  Result file     ");
		//JPanel pnamep = new JPanel();
		//pnamep.add(pname);
		//JPanel rnamep = new JPanel();
		//rnamep.add(rname);

    }

	/*
    public void addOpenButton() {
        JButton b = new JButton("Open...");
        b.addActionListener(this);
        p1.add("East", b);
    }
*/

/*
    public void addSaveImageButton() {
        JButton saveButton = new JButton("Save Image");
		saveButton.setActionCommand("save");
        //b.addActionListener(this);
        p1.add("East", saveButton);
    }
*/



    public void actionPerformed(ActionEvent e) {
	
		String action = e.getActionCommand();
	
		System.out.println(action);
		/*
        if (e.getSource() instanceof JButton) {

        }
		*/

		if(action.equals("save")){

		    JFileChooser fc = new JFileChooser();
		    GeneralFileFilter jpgFilter = new GeneralFileFilter("jpg", "JPEG image files");
		    fc.addChoosableFileFilter(jpgFilter);
		    
			//int returnVal = fc.showDialog(frame,"Save");
			int returnVal = fc.showDialog(this,"Save");
			
		    if (returnVal == JFileChooser.APPROVE_OPTION){ 

			File file = fc.getSelectedFile();
			String fname = file.getAbsolutePath();
			if(!fname.endsWith(".jpg")&&!fname.endsWith(".jpeg"))
			    file = new File(new String(fname+".jpg"));

			//check if file exists
			if(file.exists()){
			    Object[] options = {"Yes","No "};
				/*
			    int n=JOptionPane.showOptionDialog(frame,
							       "Target file "+file.getName()+" already exists, Overwrite it?",
							       "Save image",
							       JOptionPane.YES_NO_OPTION,
							       JOptionPane.QUESTION_MESSAGE,
							       null,
							       options,
							       options[1]);
				*/
				
			    int n=JOptionPane.showOptionDialog(this,
							       "Target file "+file.getName()+" already exists, Overwrite it?",
							       "Save image",
							       JOptionPane.YES_NO_OPTION,
							       JOptionPane.QUESTION_MESSAGE,
							       null,
							       options,
							       options[1]);
							
			    if(n==JOptionPane.NO_OPTION)
				return;
			}
			File fc_dir = file.getParentFile();
			if(!fc_dir.canWrite()){
			    JOptionPane.showMessageDialog(null,
							  "Can not write image file: permission denied",
							  "Error",
							  JOptionPane.ERROR_MESSAGE);
			    return;
			}
			
			//tplot.saveImage(file.getAbsolutePath());
			
			BufferedImage image = new BufferedImage(420,380,BufferedImage.TYPE_INT_RGB);	

			Graphics fg = (Graphics2D)image.getGraphics();
			this.paint(fg);

			try {
			    File f = new File(file.getAbsolutePath());
			    JimiRasterImage jrf = Jimi.createRasterImage(image.getSource());
			    FileOutputStream fos=null;
			    try { 
					fos =new FileOutputStream(f);
			    }catch (Exception ee) { };

			    if(fos != null)
				Jimi.putImage("image/jpeg",jrf,fos);
			}catch (JimiException je) {je.printStackTrace();}
			// end testing code
			
		    }
	
		}
		
		if(action.equals("close")){
		    //this.dispose();
			//dispose();
		} 
		/*
		else {
            String str = (String) PostscriptViewer.combo.getSelectedItem();
            url = Demo.class.getResource("../library/neighbor/plots/" + str);
        }
		*/
        new Thread(this).start();
	
    }


    public void run() {
        demo.repaint();
    }



    static class Demo extends Canvas implements Runnable {

        Thread thread; 

        public Demo() {
            setBackground(Color.white);
        }
    

        public void paint(Graphics g) {
	
            Dimension d = getSize();

			g2 = (Graphics2D) g;
            //Graphics2D g2 = (Graphics2D) g;
			
			System.out.println(d);
            //double s = Math.min(d.width, d.height) / 800.0;
			double s = Math.min(d.width, d.height) / 700.0;
			//double s = 1.0;
			
            PAContext context = new PAContext(g2, d);
            if (s != 1.0){
                AffineTransform fitInPage = new AffineTransform();
                fitInPage.scale(s*(1.2),s*(0.9));
				//fitInPage.scale(s,s);
                g2.transform(fitInPage);
            }
            try {
                InputStream inputStream = url.openStream();
                context.draw(inputStream);	
                inputStream.close();
            } catch (Exception e) {
                e.printStackTrace();
            }
        }


        public void start() {
            if (thread != null) {
                return;
            }
            thread = new Thread(this);
            thread.setPriority(Thread.MIN_PRIORITY);
            thread.start();
        }
    
    
        public synchronized void stop() {
            if (thread != null) {
                thread.interrupt();
            }
            thread = null;
        }
    
    
        public void run() {
            Thread me = Thread.currentThread();
            while (thread == me) {
                for (int i = 0; i < postscriptFiles.length; i++) {
                    combo.setSelectedIndex(i);
                    try {
                        thread.sleep(6000);
                    } catch (InterruptedException e) { return; }
                }
            }
            thread = null;
        } 
    } // End Demo class


	
    //public static void main(String s[]) {
	/*
	static public void main(String[] args){
		
		final PostscriptViewer demo = new PostscriptViewer();
	        demo.init();
	        //demo.addOpenButton();
			//demo.addSaveImageButton();
			WindowListener l = new WindowAdapter() {
		    public void windowClosing(WindowEvent e) {System.exit(0);}
		};
		
		Frame f = new Frame("Neighbor Joining Tree");
		f.addWindowListener(l);
		f.add("Center", demo);
		f.pack();
        
		//int w = 390*2; 
        //int h = 440*2;

		int w = 400*2; 
        int h = 400*2;
		
		
		f.setSize(new Dimension(w, h));
        Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
		f.setLocation(screenSize.width/2 - w/2, screenSize.height/2 - h/2); //the position of the window
		f.show();
	
    }
	*/
}