package com.onaro.util.jfc;

import java.awt.Color;
import java.awt.Cursor;
import java.awt.Font;
import java.awt.font.TextAttribute;
import java.util.Map;

import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.SwingConstants;

import com.onaro.sanscreen.client.help.HelpManagerFactory;

/**
 * This object is a help field which shows the help display text and
 * links to the help context by showing it as a link in the landing page.
 */
public class HelpField extends JButton{

    private static final long serialVersionUID = 1L;

    public HelpField(final String helpDisplayText, final String helpContext){
        setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
        setFocusPainted(false);
        setHorizontalAlignment(SwingConstants.LEFT);
        setForeground(Color.BLUE);

        //This is to set the blue font to show it as a link.
        //Did not want to hard code the html link format.        
        Font currentFont = getFont();
        @SuppressWarnings("unchecked")
        Map<TextAttribute, Object> attributes = (Map<TextAttribute, Object>)currentFont.getAttributes();
        attributes.put(TextAttribute.UNDERLINE, TextAttribute.UNDERLINE_ON);
        setFont(currentFont.deriveFont(attributes));

        setText(helpDisplayText);

        //connect to the help system.
        HelpManagerFactory.getHelpManager().setHelpContext (this, helpContext);
        HelpManagerFactory.getHelpManager().registerHelpInvoker (this);
        setBorder(BorderFactory.createEmptyBorder());
        setBackground(Color.WHITE);



    }

}