package sec04.exam03_jpanel;

import java.awt.BorderLayout;
import java.awt.Color;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;

public class JPanelExample extends JFrame {
    private JPanel panelSouth;
    private JButton btnOk;
    private JButton btnCancel;

    public JPanelExample() {
        this.setTitle("JPanelExample");
        this.setSize(250, 200);
        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        
        // JFrame 남쪽에 JPanel 배치
        this.getContentPane().add(getPanelSouth(), BorderLayout.SOUTH);
    }

    public JPanel getPanelSouth() {
        if (panelSouth == null) {
            panelSouth = new JPanel(); // 기본 FlowLayout
            panelSouth.setBackground(Color.WHITE);
            panelSouth.add(getBtnOk());
            panelSouth.add(getBtnCancel());
        }
        return panelSouth;
    }

    public JButton getBtnOk() {
        if (btnOk == null) btnOk = new JButton("확인");
        return btnOk;
    }

    public JButton getBtnCancel() {
        if (btnCancel == null) btnCancel = new JButton("취소");
        return btnCancel;
    }

    public static void main(String[] args) {
        SwingUtilities.invokeLater(() -> {
            JPanelExample jFrame = new JPanelExample();
            jFrame.setVisible(true);
        });
    }
}