JTextArea differenet methode of inserting text

[taptaptill]

Hello Everyone and thanks for the help in advance :)
So I want to know if it's possible in a textarea to know the input method like from the keyboard or from the code, cause I want to make part of a text area uneditable while it's editable what I mean is before the postion of the caret the text can not be modified.

[DarrylBurke]

Looks like you what you need is camickr's Protected Text Component « Java Tips Weblog

db

[taptaptill]

thanks for the response it's done!! :)
For anyone how might need it, this is the code :

   private class Filter extends DocumentFilter {
      
    
        int caretpos = Traffic.getCaretPosition();
        @Override
        public void insertString(final FilterBypass fb, final int offset, final String string, final AttributeSet attr)
            throws BadLocationException {
        if (offset > 0 ){
            super.insertString(fb, offset, string, attr);
        }
          
        }
    
      @Override
    public void remove(final DocumentFilter.FilterBypass fb, final int offset, final int length) throws BadLocationException {
        
          if (  (Traffic.getLineStartOffset(Traffic.getLineCount()-1) + promptposition()) - 1 < offset && (Traffic.getLineOfOffset(offset)  == (Traffic.getLineCount() - 1)) ){
          
            super.remove(fb, offset , length);
            
           
        
    }}

      @Override
    public void replace(final DocumentFilter.FilterBypass fb, final int offset, final int length, final String text, final AttributeSet attrs)
            throws BadLocationException {
        if (offset >= promptposition() ) {
            super.replace(fb,offset, length, text, attrs);
            
           
            
        }
    }
}

[DarrylBurke]

Thank you for posting your solution for the benefit of others.

db