03. Swing 컨테이너

JFrame jFrame = new JFrame();
// MenuBar 추가
jFrame.setJMenuBar(new JMenuBar());
// 컴포넌트 추가 (ContentPane에 추가됨)
jFrame.getContentPane().add(new JButton("확인"), BorderLayout.SOUTH);

package sec03.exam02_jwindow;

import java.awt.BorderLayout;
import java.awt.GraphicsEnvironment;
import java.awt.Point;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import javax.swing.ImageIcon;
import javax.swing.JLabel;
import javax.swing.JWindow;
import javax.swing.SwingUtilities;

public class JWindowExample extends JWindow {
    public JWindowExample() {
        // JWindow 크기 설정
        this.setSize(600, 350);
        
        // 화면 중앙에 띄우기
        GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
        Point centerPoint = ge.getCenterPoint();
        int leftTopX = centerPoint.x - this.getWidth() / 2;
        int leftTopY = centerPoint.y - this.getHeight() / 2;
        this.setLocation(leftTopX, leftTopY);
        
        // 이미지 라벨 추가
        JLabel label = new JLabel();
        label.setIcon(new ImageIcon(getClass().getResource("game.png")));
        getContentPane().add(label, BorderLayout.CENTER);
        
        // 클릭 시 종료
        this.addMouseListener(new MouseAdapter() {
            @Override
            public void mouseClicked(MouseEvent e) {
                dispose(); // 윈도우 닫기
            }
        });
    }

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

package sec03.exam03_jframe;

import java.awt.GraphicsEnvironment;
import java.awt.Point;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.SwingUtilities;

public class JFrameExample extends JFrame {
    public JFrameExample() {
        this.setSize(600, 500);
        
        // 아이콘 및 제목 설정
        this.setIconImage(new ImageIcon(getClass().getResource("icon.png")).getImage());
        this.setTitle("메인창");
        
        // 종료 동작 설정
        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        
        // 화면 중앙 배치
        GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
        Point centerPoint = ge.getCenterPoint();
        this.setLocation(centerPoint.x - this.getWidth()/2, centerPoint.y - this.getHeight()/2);
    }

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

package sec03.exam04_jtabbedpane;

import java.awt.BorderLayout;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTabbedPane;
import javax.swing.SwingUtilities;

public class JTabbedPaneExample extends JFrame {
    private JTabbedPane jTabbedPane;
    private JPanel tab1Panel;
    private JPanel tab2Panel;

    public JTabbedPaneExample() {
        this.setTitle("JTabbedPaneExample");
        this.setSize(300, 200);
        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        this.getContentPane().add(getJTabbedPane(), BorderLayout.CENTER);
    }

    private JTabbedPane getJTabbedPane() {
        if (jTabbedPane == null) {
            jTabbedPane = new JTabbedPane();
            jTabbedPane.setTabPlacement(JTabbedPane.LEFT); // 탭 위치 (LEFT, TOP, BOTTOM, RIGHT)
            jTabbedPane.addTab("탭1", getTab1Panel());
            jTabbedPane.addTab("탭2", getTab2Panel());
        }
        return jTabbedPane;
    }

    private JPanel getTab1Panel() {
        if (tab1Panel == null) {
            tab1Panel = new JPanel();
            JLabel jLabel = new JLabel();
            jLabel.setIcon(new ImageIcon(getClass().getResource("duke1.gif")));
            tab1Panel.add(jLabel);
        }
        return tab1Panel;
    }

    private JPanel getTab2Panel() {
        if (tab2Panel == null) {
            tab2Panel = new JPanel();
            JLabel jLabel = new JLabel();
            jLabel.setIcon(new ImageIcon(getClass().getResource("duke2.gif")));
            tab2Panel.add(jLabel);
        }
        return tab2Panel;
    }

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

// 사용법
JScrollPane scrollPane = new JScrollPane(targetComponent);

package sec03.exam05_jscrollpane;

import java.awt.BorderLayout;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JScrollPane;
import javax.swing.SwingUtilities;

public class JScrollPaneExample extends JFrame {
    private JScrollPane scrollImage;
    private JLabel lblImage;

    public JScrollPaneExample() {
        this.setTitle("JScrollPaneExample");
        this.setSize(350, 230);
        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        
        // 이미지가 윈도우보다 크면 자동으로 스크롤 생성됨
        this.getContentPane().add(getScrollImage(), BorderLayout.CENTER);
    }

    private JScrollPane getScrollImage() {
        if (scrollImage == null) {
            scrollImage = new JScrollPane(getLblImage());
        }
        return scrollImage;
    }

    public JLabel getLblImage() {
        if (lblImage == null) {
            lblImage = new JLabel();
            lblImage.setIcon(new ImageIcon(getClass().getResource("snow.jpg")));
        }
        return lblImage;
    }

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