source: trunk/gli/src/org/greenstone/gatherer/feedback/MyTextArea.java@ 9078

package org.greenstone.gatherer.feedback;

import javax.swing.*;
import javax.swing.text.*;
import java.util.Date;
import java.awt.Color;

/**
 * This class will allow us to changed what should be inputted to the 
 * text area as the user inputted the text to the text area.
 * @author Veronica Liesaputra
 */
public class MyTextArea extends JTextArea 
{
    /**
     * Creating an empty JTextArea.
     */
    public MyTextArea ()
    {
    super();
    }

    /**
     * Creating a JTextArea already appended with cols.
     * (Precondition: (cols != null))
     * @param cols the text to be appended.
     */
    public MyTextArea(String cols) 
    {
    super(cols);
    }
 
    /**
     * It will give the default model this text area should use.
     * @return the default model this text area used.
     */
    protected Document createDefaultModel() 
    {
    return new UpperCaseDocument();
    }
 
    /**
     * This class will be used as the default model of MyTextArea.
     * Here we can control and modified the string that is going to be inserted to 
     * the document.
     */
    static class UpperCaseDocument extends PlainDocument 
    {
    /**
     * This method will caused the document to be appended with the date followed by newline
     * everytime user trying to insert a new line to the document.
     * (Precondition : (offs >= 0) && (str != null))
     * @param offs is the offset placted to insert the string.
     * @param str is the string to be inserted.
     * @param a is the attribute set to be used.
     */
    public void insertString(int offs, String str, AttributeSet a) 
        throws BadLocationException 
    {
        if (str == null) 
        {
            return;
        }
        
        char[] upper;
        upper = str.toCharArray();

        if (str.endsWith("\n") == true)
        {
            String str2;
            str2 = str + ((new Date()).toString()) + "\n\n>";
            upper = str2.toCharArray();
        }
       
        super.insertString(offs, new String(upper), a);
    }
    }
}