Saving with JTextPane & Attributes handling

[john price]

import java.awt.*;
import java.awt.Color.*;
import java.awt.event.*;
import java.awt.geom.*;

import javax.swing.*;

import java.io.*;

import javax.swing.text.*;

public class Paint extends JPanel {
  static Toolkit tk = Toolkit.getDefaultToolkit();
  static Dimension d = tk.getScreenSize();
  static JFrame window = new JFrame("Type yo words!");
	SimpleAttributeSet attributes = new SimpleAttributeSet();
	SimpleAttributeSet center = new SimpleAttributeSet();
	boolean bold, italic, centered = false;
	JButton jbold = new JButton("Make it Bold!");
	JButton jitalic = new JButton("Make it Italic!");
	JButton save = new JButton("Save it!");
	JButton jCL = new JButton("Center Text");
	JTextPane area = new JTextPane();
	JScrollPane qScroller;
	int font = 12;
	String[] sizeOptions = { "8", "9", "10", "11", "12", "13", "14", "15", "16"};

JComboBox sizes = new JComboBox(sizeOptions);

  public Paint() {
	setLayout(null);
	save.setBounds(770, d.height - 100, 150, 20);
	save.setBackground(new Color(0, 0, 0));
	save.setForeground(new Color(250, 250, 250));
	add(save);
	save.addActionListener(new ActionListener() {
	public void actionPerformed(ActionEvent e) {
	try {
	Thread.sleep(5000);
FileWriter f0 = new FileWriter(new File("testfile.txt"));
area.write(f0);
f0.close();
}
catch (Exception exe) {
exe.printStackTrace();
}
area.requestFocusInWindow();
	}
	});
	jitalic.setBounds(150, d.height - 100, 150, 20);
	jitalic.setBackground(new Color(0, 0, 0));
	jitalic.setForeground(new Color(250, 250, 250));
	add(jitalic);
	
sizes.setSelectedIndex(4);
sizes.setBounds(300, d.height - 100, 100, 20);
sizes.setBackground(Color.black);
sizes.setForeground(Color.white);
add(sizes);
jCL.setBounds(400, d.height - 100, 150, 20);
jCL.setBackground(Color.black);
jCL.setForeground(Color.white);
add(jCL);
jCL.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
if (!centered) {
jCL.setText("Align-Left Text");
StyleConstants.setAlignment(center, StyleConstants.ALIGN_CENTER);
centered = true;
}
else {
jCL.setText("Center Text");
StyleConstants.setAlignment(center, StyleConstants.ALIGN_LEFT);
centered = false;
}
area.setParagraphAttributes(center, false);
area.requestFocusInWindow();
}
});
sizes.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
	font = Integer.parseInt((String)sizes.getSelectedItem());
	StyleConstants.setFontSize(attributes, font);
	area.setCharacterAttributes(attributes, false);
	area.requestFocusInWindow();
	}
	});
	
	jitalic.addActionListener(new ActionListener() {
	public void actionPerformed(ActionEvent e) {
	if (!italic) {
	attributes.addAttribute(StyleConstants.CharacterConstants.Italic, Boolean.TRUE);
	jitalic.setText("Make It Not Italic!");
	italic = true;
	}
	else  {
	attributes.addAttribute(StyleConstants.CharacterConstants.Italic, Boolean.FALSE);
	jitalic.setText("Make It Italic!");
	italic = false;
	}
	area.setCharacterAttributes(attributes, false);
	area.requestFocusInWindow();
	}
	});
	jbold.setBounds(0, d.height - 100, 150, 20);
	jbold.setBackground(new Color(0, 0, 0));
	jbold.setForeground(new Color(250, 250, 250));
	add(jbold);
	jbold.addActionListener(new ActionListener() {
	public void actionPerformed(ActionEvent e) {
	if (!bold) {
	attributes.addAttribute(StyleConstants.CharacterConstants.Bold, Boolean.TRUE);
	jbold.setText("Make It Not Bold!");
	bold = true;
	}
	else {
	attributes.addAttribute(StyleConstants.CharacterConstants.Bold, Boolean.FALSE);
	jbold.setText("Make It Bold!");
	bold = false;
	}
	area.setParagraphAttributes(center, false);
	area.setCharacterAttributes(attributes, false);
	area.requestFocusInWindow();
	}
	});
	add(area);
	
	StyleConstants.setFontSize(attributes, font);
	attributes.addAttribute(StyleConstants.CharacterConstants.Bold, Boolean.FALSE);
	attributes.addAttribute(StyleConstants.CharacterConstants.Italic, Boolean.FALSE);
	attributes.addAttribute(StyleConstants.CharacterConstants.Foreground, Color.blue);
	area.setCharacterAttributes(attributes, false);
	
	qScroller = new JScrollPane(area);
	qScroller.setBounds(0, 0, d.width - 15, d.height - 100);
qScroller.setAutoscrolls(true);
qScroller.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS);
qScroller.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
add(qScroller);

	setBackground(new Color(0, 0, 0));
  }
public void keyPressed(KeyEvent t) {}
public void keyReleased(KeyEvent u) {}
  public static void main(String[] args) {
    window.getContentPane().add(new Paint());
	window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    window.setSize(d.width, d.height);
    window.setVisible(true);
	}
  }

This all compiles and runs fine.

Problems: Saving and Attributes handling

Problem in Detail: Saving: JTextPane saves data to a test file ("testfile.txt"). Doesn't information such as italics, bold, and size.

Problem in Detail: Attributes handling:
When you click to another area in the JTextPane (called "area"), the buttons are off. When you click one of the Attributes buttons while not at the end, it takes the attributes from the end and places them in the spot where you are typing.

What am I doing wrong and how do I fix them?

Thanks,
John Price aka cc11rocks

EDIT: Should I use a caret listener to fix the attributes problem?

[Paul Clapham]

The API documentation for the "write" method of JTextPane says:

Stores the contents of the model into the given stream. By default this will store the model as plain text.

So you can't use that. You're going to have to serialize the Document which underlies the text component yourself. I don't know if there's a standard way to do that, but when I had to do it I serialized it as XML (I made up my own XML format for that).

[john price]

Okay, thanks for the saving.
Do you have any response for the attributes handling problem?
Thanks,
John Price aka cc11rocks

[john price]

area.addCaretListener(new CaretListener() {
	 public void caretUpdate(CaretEvent caretEvent) {
if (attributes.containsAttribute(StyleConstants.CharacterConstants.Bold, Boolean.FALSE)) {
 jbold.setText("Make it Bold!");
 bold = false;
 }
 else {
 jbold.setText("Make it not Bold!");
 bold = true;
 }
 if (attributes.containsAttribute(StyleConstants.CharacterConstants.Italic, Boolean.FALSE)) {
 jitalic.setText("Make it Italic!");
 italic = false;
 }
 else {
 jitalic.setText("Make it not Italic!");
 italic = true;
 }
      }
  });

This isn't working for some reason.
cc11rocks aka John Price