I’m currently using a JEditorPane for my chat area (because I want colors and stuff). When I update my text I call setText() on the editor with a maintained string. However, this has to two problems
Does anyone have ways round this?
Kev
ahh… seems I could do something with JEditorPane.getDocument().insertString().
Any one got any examples of using AttributeSets to colour text?
Kev
Hi,
In the Lost Newless Clubies I posted an example… :-/
Just wait until I return to home and I’ll post it again… (It was used to simulate Yahoo’s Messenger look).
Rafael
There is the code:
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.text.*;
import java.util.*;
public class TextExample extends JFrame{
//Interface
//message area
JTextPane messages;
Document doc;
JTextField talk;
JButton send;
JLabel stat;
String user;
public TextExample(String u){
user = u;
create();
}
public void create(){
setTitle("Yo te busco - "+user);
getContentPane().setLayout(new BorderLayout());
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
messages = new JTextPane();
//With this the pane cannot be edited!!
messages.setEditable(false);
//this is used to create styles for te text...
//there are options to change the font.
//first, the deafult style.
Style def = StyleContext.getDefaultStyleContext().getStyle(StyleContext.DEFAULT_STYLE);
//then I make the first style for the TextPane "text", derivate from def.
Style text = messages.addStyle("text", def);
//the second style is "bold", derivate from
Style bold = messages.addStyle("bold", text);
//set the attribute bold to the style.
StyleConstants.setBold(bold, true);
//make a new type.
Style img1 = messages.addStyle("img1", text);
StyleConstants.setIcon(img1, new ImageIcon("solo.gif"));
//make a new type.
Style img2 = messages.addStyle("img2", text);
StyleConstants.setIcon(img2, new ImageIcon("varios.gif"));
//I want a reference to the TestPane's document (it's the model of this component).
doc = messages.getStyledDocument();
talk = new JTextField(15);
send = new JButton("Send");
stat = new JLabel();
ActionListener ac = new ActionListener(){
public void actionPerformed(ActionEvent ae){
/*********************************************************
This creates the message header, Yahoo Messenger's Style
**********************************************************/
Calendar c = Calendar.getInstance();
int h = c.get(Calendar.HOUR_OF_DAY);
int m = c.get(Calendar.MINUTE);
String hora = ((h<10)?"0":"")+h+":"+((m<10)?"0":"")+m;
String he = user+"["+hora+"]"+":";
int lh = he.length();
/*************************************************/
//here the text is added to the textpane
add(he,"bold"); //this with the 'bold' style
String text = talk.getText();
if(text.equals("solo"))
add("\n","img1"); //this is the image
else if(text.equals("varios"))
add("\n","img2"); //this is the image
else
add(talk.getText()+"\n","text"); //this with the 'text' style
talk.setText("");
}
};
talk.addActionListener(ac);
send.addActionListener(ac);
JPanel pan = new JPanel(new FlowLayout());
JPanel pan2 = new JPanel(new GridLayout(2,1));
pan.add(talk);
pan.add(send);
pan2.add(pan);
pan2.add(stat);
getContentPane().add(new JScrollPane(messages),BorderLayout.CENTER);
getContentPane().add(pan2,BorderLayout.SOUTH);
setSize(300,500);
setVisible(true);
}
private void add(String s,String t){
try{
doc.insertString(doc.getLength(),s,messages.getStyle(t));
}
catch(BadLocationException ble){
}
}
public static void main(String[] args){
if(args.length!=1){
System.out.println("Usage: TextExample username");
System.exit(0);
}
TextExample t = new TextExample(args[0]);
}
}
The code needs two images ‘solo.gif’ and ‘varios.gif’ they are used like ‘emoticons’, when you type ‘solo’ or ‘varios’ as the message.
Rafael