package com.fc.vrml.image.ptg;

import com.fc.vrml.image.*;
import java.awt.*;
import java.awt.datatransfer.*;
import java.awt.event.*;
import java.awt.image.*;
import java.io.*;
import java.util.*;
import java.net.*;

public class PixelTextureGenerator extends Frame implements ActionListener, WindowListener, Observer{

	ComponentChoiceDialog ccd;
	OpenURLDialog oud;

	MenuItem openmenuitem; 
	MenuItem openurlmenuitem; 
	MenuItem exportfilemenuitem;
	MenuItem exportclipboardmenuitem;
	MenuItem exitmenuitem;
	Menu filemenu;
	MenuBar menubar;
	Canvas canvas;

	Image image=null;
	String pixeltexturestring;
	int exporttype=0;
	String loaddirectory, savedirectory;
	String imagestring, filestring;	
	Label statuslabel;
	Label filenamelabel;
	Label componentslabel;

	Panel statuspanel;

	public PixelTextureGenerator(){

		super("Pixel Texture Generator");

		ccd=new ComponentChoiceDialog(this);
		oud=new OpenURLDialog(this);

		filemenu=new Menu("File");
		openmenuitem=new MenuItem("Open File...");
		openurlmenuitem=new MenuItem("Open URL...");
		exportfilemenuitem=new MenuItem("Export File...");
		exportclipboardmenuitem=new MenuItem("Export to Clipboard");
		exitmenuitem=new MenuItem("Exit");

		exportfilemenuitem.setEnabled(false);
		exportclipboardmenuitem.setEnabled(false);

		filemenu.add(openmenuitem);
		filemenu.add(openurlmenuitem);
		filemenu.addSeparator();
		filemenu.add(exportfilemenuitem);
		filemenu.add(exportclipboardmenuitem);
		filemenu.addSeparator();
		filemenu.add(exitmenuitem);

		openmenuitem.addActionListener(this);
		openurlmenuitem.addActionListener(this);
		exportfilemenuitem.addActionListener(this);
		exportclipboardmenuitem.addActionListener(this);
		exitmenuitem.addActionListener(this);

		menubar=new MenuBar();
		menubar.add(filemenu);
		setMenuBar(menubar);

		addWindowListener(this);

		setSize(300, 120);

		statuspanel=new Panel();
		statuspanel.setBackground(Color.lightGray);
		canvas=new Canvas();
		setLayout(new BorderLayout());
		add(canvas, "Center");
		add(statuspanel, "South");
	}

	public void activateMenuItems(){

		if (exportfilemenuitem.isEnabled()==false)exportfilemenuitem.setEnabled(true);
		if (exportclipboardmenuitem.isEnabled()==false)exportclipboardmenuitem.setEnabled(true);

	}

	public void openFileAction(){

		FileDialog fd=new FileDialog(this, "Select image file...");
		fd.setFile("*.gif;*.jpg");
		if (loaddirectory!=null)fd.setDirectory(loaddirectory);
		fd.show();
		imagestring=fd.getFile();
		if (imagestring==null) {return;}
		loaddirectory=fd.getDirectory();

		if(image!=null)image.flush();
		image=null;
		image=Toolkit.getDefaultToolkit().getImage(loaddirectory+imagestring);

		MediaTracker mt=new MediaTracker(this);
		mt.addImage(image, 0);
		try{
			mt.waitForID(0);
		} catch (InterruptedException ie){out ("InterruptedException.");}
	
		int x=image.getWidth(this);
		int y=image.getHeight(this);

		canvas.setSize(x, y);
		pack();
		validate();
		canvas.getGraphics().drawImage(image, 0, 0, this);

		activateMenuItems();
	}

	public void openURLAction(){

		oud.setLocation(getLocation());
		oud.show();

		URL imageurl=oud.state;
		if (imageurl==null) return;

		if(image!=null)image.flush();
		image=null;
		image=Toolkit.getDefaultToolkit().getImage(imageurl);
		imagestring=imageurl.toString();

		MediaTracker mt=new MediaTracker(this);
		mt.addImage(image, 0);
		try{
			mt.waitForID(0);
		} catch (InterruptedException ie){out ("InterruptedException.");}

		int x=image.getWidth(this);
		int y=image.getHeight(this);

		canvas.setSize(x, y);
//		pack();
//		validate();

//		canvas.getGraphics().drawImage(image, 0, 0, this);

		activateMenuItems();

		canvas.repaint();

	}


	public void exportFileAction(){
		ccd.setLocation(getLocation());
		ccd.show();
		((Component)this).setCursor(new Cursor(Cursor.WAIT_CURSOR));
		SFImageConverter sfimageconverter=new SFImageConverter(ccd.state);
		sfimageconverter.addObserver(this);
		image.getSource().startProduction(sfimageconverter);
		exporttype=0;
	}

	public void exportFileCallback(){

		FileDialog fd=new FileDialog(this, "Save PixelTexture data.", FileDialog.SAVE);
		if (savedirectory!=null) fd.setDirectory(savedirectory);
		fd.show();
		String filestring=fd.getFile();
		if (filestring==null) {((Component)this).setCursor(new Cursor(Cursor.DEFAULT_CURSOR));return;}
		savedirectory=fd.getDirectory();
		File file=new File (filestring);

		try{
			FileWriter fw=new FileWriter(file);
			BufferedWriter bw=new BufferedWriter(fw);
			Date date=new Date();
			bw.write("# PixelTexture data generated by PixelTextureGenerator from "+imagestring+" on "+date.toString()+".\n");
			bw.write(pixeltexturestring);
			bw.flush();
			bw.close();
		} catch (IOException ioe){out("IOException.");out(ioe.getMessage());}
		catch (NullPointerException npe){out("No data.");}

		((Component)this).setCursor(new Cursor(Cursor.DEFAULT_CURSOR));
	}

	public void exportClipboardAction(){
		ccd.setLocation(getLocation());
		ccd.show();
		((Component)this).setCursor(new Cursor(Cursor.WAIT_CURSOR));
		SFImageConverter sfimageconverter=new SFImageConverter(ccd.state);
		sfimageconverter.addObserver(this);
		image.getSource().startProduction(sfimageconverter);
		exporttype=1;
	}

	public void exportClipboardCallback(){

		Date date=new Date();
		StringSelection ss=new StringSelection("# PixelTexture data generated by PixelTextureGenerator from "+imagestring+" on "+date.toString()+".\n"+pixeltexturestring);
		Toolkit.getDefaultToolkit().getSystemClipboard().setContents((Transferable)ss, (ClipboardOwner)ss);
		((Component)this).setCursor(new Cursor(Cursor.DEFAULT_CURSOR));
	}


	public void exitAction(){

		System.exit(0);

	}

	public void out(String string){

		System.out.println(string);

	}


	public void update(Observable o, Object arg){

		if (((Integer)arg).intValue()==1) {out("Image data delivery abort.");return;}
		if (((Integer)arg).intValue()==4) {out("Image data delivery error.");return;}
		if (((Integer)arg).intValue()==2) {out("Image frame data sent.");return;}


		pixeltexturestring=((SFImageConverter)o).getExternalSFImage().toString();

		if (exporttype==0)exportFileCallback();
		if (exporttype==1)exportClipboardCallback();

	}

	public void actionPerformed(ActionEvent actionEvent){

		if (actionEvent.getSource()==openmenuitem)openFileAction();
		if (actionEvent.getSource()==openurlmenuitem)openURLAction();
		if (actionEvent.getSource()==exportfilemenuitem)exportFileAction();
		if (actionEvent.getSource()==exportclipboardmenuitem)exportClipboardAction();
		if (actionEvent.getSource()==exitmenuitem)exitAction();

	}

	public void windowActivated(WindowEvent windowEvent){

		repaint();

	}

	public void windowClosed(WindowEvent windowEvent){

	}

	public void windowClosing(WindowEvent windowevent){

		System.exit(0);

	}

	public void windowDeactivated(WindowEvent windowEvent){

	}

	public void windowDeiconified(WindowEvent windowEvent){

		repaint();

	}

	public void windowIconified(WindowEvent windowEvent){

	}

	public void windowOpened(WindowEvent windowEvent){

		repaint();

	}

	public void update(Graphics g){

		if (image!=null){
			canvas.getGraphics().drawImage(image, 0, 0, this);
		}

	}

	public void paint(Graphics g){

		if (image!=null){
			canvas.getGraphics().drawImage(image, 0, 0, this);
		}

	}

	public static void main(String[] args){

		PixelTextureGenerator ptg=new PixelTextureGenerator();
		ptg.setLocation(80, 80);
		ptg.show();

	}

}