package com.macfaq;

import java.beans.*;
import java.awt.*;
import java.awt.event.*;
import java.io.*;


public class FilledTextAreaCustomizer 
 extends Panel
 implements Customizer {

  PropertyChangeSupport pce = new PropertyChangeSupport(this);
  FilledTextArea bean;
  TextArea ta = new TextArea();
  Button b1 = new Button("Load File");

  public void addPropertyChangeListener(PropertyChangeListener pcl) {
    pce.addPropertyChangeListener(pcl);
  }

  public void removePropertyChangeListener(PropertyChangeListener pcl) {
    pce.removePropertyChangeListener(pcl);
  }

  public void setObject(Object bean) {
    this.bean = (FilledTextArea) bean;
    ta.setText(this.bean.getText());
  }

  public FilledTextAreaCustomizer() {
    setLayout(new BorderLayout());
    Panel p1 = new Panel();
    p1.add(b1);
    add("South", p1);
    add("Center", ta);
    b1.addActionListener(new FileChooser());
    ta.addTextListener(new TextWatcher());
  }

 
  class TextWatcher implements TextListener {

    public void textValueChanged(TextEvent e) {
      String oldValue = bean.getText();
      String newValue = ta.getText();
      bean.setText(newValue);
      pce.firePropertyChange("Text", oldValue , newValue);
    }

  }

  class FileChooser implements ActionListener {
  
    public void actionPerformed(ActionEvent evt) {
    
      FileDialog fd = new FileDialog(new Frame(),
       "Please select the file:", FileDialog.LOAD);
      fd.setVisible(true);
      String file = fd.getFile();
      String dir = fd.getDirectory();  
      if (file != null) {
        try {
          FileReader fr = new FileReader(dir + file);  
          StringBuffer sb = new StringBuffer();
          int c;
          while ((c = fr.read()) != -1) {
            sb.append((char) c);
          }
          ta.setText(sb.toString());
        }
        catch (IOException ex) {
        }

      }
        
    }
  
  }

}