package com.company;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class RadioButtonFrame extends JFrame{
    private JTextField textField;
    private Font plainFont;
    private Font boldFont;
    private Font italicFont;
    private Font boldItalicFont;
    private JRadioButton plainJRadioButton;
    private JRadioButton boldJRadioButton;
    private  JRadioButton italicJRadioButton;
    private JRadioButton boldItalicJRadioButton;
    private ButtonGroup radioGroup;

    public RadioButtonFrame(){
        super("RadioButton test");
        setLayout(new FlowLayout());

        textField = new JTextField("Selecione o estilo da fonte");
        add(textField);

        plainJRadioButton = new JRadioButton("Plain", true);
        boldJRadioButton = new JRadioButton("Bold", false);
        italicJRadioButton = new JRadioButton("Italic",false);
        boldItalicJRadioButton = new JRadioButton("Bold/Italic",false);
        add(plainJRadioButton);
        add(boldJRadioButton);
        add(italicJRadioButton);
        add(boldItalicJRadioButton);

        radioGroup = new ButtonGroup();
        radioGroup.add(plainJRadioButton);
        radioGroup.add(boldJRadioButton);
        radioGroup.add(italicJRadioButton);
        radioGroup.add(boldItalicJRadioButton);

        plainFont = new Font("Serif",Font.PLAIN, 14);
        boldFont = new Font("Serif", Font.BOLD,14);
        italicFont = new Font("Serif",Font.ITALIC,14);
        boldItalicFont = new Font("Serif",Font.BOLD + Font.ITALIC, 14);
        textField.setFont(plainFont);

        plainJRadioButton.addItemListener(
            new RadionButtonHandler(plainFont));
        boldJRadioButton.addItemListener(
                new RadionButtonHandler(boldFont));
        italicJRadioButton.addItemListener(
                new RadionButtonHandler(italicFont));
        boldItalicJRadioButton.addItemListener(
                new RadionButtonHandler(boldItalicFont));
    }
    private class RadionButtonHandler implements ItemListener{
        private Font font;
        public RadionButtonHandler(Font f){
            font = f;
        }
        public void itemStateChanged(ItemEvent event){
            textField.setFont(font);
        }
    }
}