添加 'src/view/MainMenuView.java'

src/view/MainMenuView.java

@@ -0,0 +1,72 @@
+package view;
+
+import model.UserType;
+import javax.swing.*;
+import java.awt.*;
+
+public class MainMenuView extends JPanel {
+    private final JLabel welcomeLabel = new JLabel("", SwingConstants.CENTER);
+    private final JComboBox<String> typeComboBox = new JComboBox<>();
+    private final JSpinner countSpinner = new JSpinner(new SpinnerNumberModel(10, 10, 30, 1));
+    private final JButton startExamButton = new JButton("开始答题");
+    private final JButton changePasswordButton = new JButton("修改密码");
+    private final JButton logoutButton = new JButton("退出登录");
+
+    public MainMenuView() {
+        setLayout(new BorderLayout(20, 20));
+        setBorder(BorderFactory.createEmptyBorder(40, 40, 40, 40));
+
+        welcomeLabel.setFont(new Font(Font.SANS_SERIF, Font.BOLD, 28));
+        add(welcomeLabel, BorderLayout.NORTH);
+
+        JPanel centerPanel = new JPanel(new GridBagLayout());
+        GridBagConstraints gbc = new GridBagConstraints();
+        gbc.insets = new Insets(15, 10, 15, 10);
+
+        gbc.gridx = 0; gbc.gridy = 0; addLabel(centerPanel, "选择题目难度:", gbc);
+        gbc.gridx = 1; gbc.gridy = 0; addComponent(centerPanel, typeComboBox, gbc);
+
+        gbc.gridx = 0; gbc.gridy = 1; addLabel(centerPanel, "选择题目数量:", gbc);
+        gbc.gridx = 1; gbc.gridy = 1; addComponent(centerPanel, countSpinner, gbc);
+
+        startExamButton.setFont(new Font(Font.SANS_SERIF, Font.BOLD, 20));
+
+        startExamButton.putClientProperty("JButton.buttonType", "roundRect");
+        gbc.gridy = 2; gbc.gridwidth = 2; gbc.insets = new Insets(30, 10, 15, 10);
+        addComponent(centerPanel, startExamButton, gbc);
+        add(centerPanel, BorderLayout.CENTER);
+
+        JPanel southPanel = new JPanel(new FlowLayout(FlowLayout.RIGHT, 20, 0));
+        southPanel.add(changePasswordButton);
+        southPanel.add(logoutButton);
+        add(southPanel, BorderLayout.SOUTH);
+
+        for (UserType type : UserType.values()) {
+            typeComboBox.addItem(type.getDisplayName());
+        }
+    }
+
+    private void addLabel(JPanel panel, String text, GridBagConstraints gbc) {
+        JLabel label = new JLabel(text);
+        label.setFont(new Font(Font.SANS_SERIF, Font.PLAIN, 16));
+        panel.add(label, gbc);
+    }
+
+    private void addComponent(JPanel panel, JComponent comp, GridBagConstraints gbc) {
+        comp.setFont(new Font(Font.SANS_SERIF, Font.PLAIN, 16));
+        panel.add(comp, gbc);
+    }
+
+    public void setWelcomeMessage(String message) { welcomeLabel.setText(message); }
+    public UserType getSelectedType() {
+        String displayName = (String) typeComboBox.getSelectedItem();
+        for (UserType type : UserType.values()) {
+            if (type.getDisplayName().equals(displayName)) return type;
+        }
+        return UserType.PRIMARY;
+    }
+    public int getQuestionCount() { return (int) countSpinner.getValue(); }
+    public JButton getStartExamButton() { return startExamButton; }
+    public JButton getChangePasswordButton() { return changePasswordButton; }
+    public JButton getLogoutButton() { return logoutButton; }
+}