Add module-info.java and implement version selection and downloading functionality

version:1.0.1

Author: hjy666-mc

src/main/java/module-info.java

@@ -0,0 +1,22 @@
+module org.mcdcl {
+    requires javafx.controls;
+    requires javafx.fxml;
+    requires javafx.web;
+    requires javafx.swing;
+    requires java.desktop;
+    requires java.prefs;  // 添加 java.prefs 模块依赖
+    requires jmccc;
+    requires jmccc.mcdownloader;
+    requires jmccc.microsoft.authenticator;
+    requires jmccc.mojang.api;
+    requires jmccc.cli;
+    
+    exports org.mcdcl;
+    exports org.mcdcl.ui;
+    exports org.mcdcl.config;
+    exports org.mcdcl.controller;
+    
+    opens org.mcdcl to javafx.graphics;
+    opens org.mcdcl.ui to javafx.fxml;
+    opens org.mcdcl.controller to javafx.fxml;
+}

src/main/java/org/mcdcl/ui/VersionSelectDialog.java

@@ -0,0 +1,144 @@
+package org.mcdcl.ui;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
+import org.to2mbn.jmccc.mcdownloader.RemoteVersion;
+import org.to2mbn.jmccc.mcdownloader.RemoteVersionList;
+
+import javafx.collections.FXCollections;
+import javafx.collections.ObservableList;
+import javafx.geometry.Insets;
+import javafx.geometry.Pos;
+import javafx.scene.control.Button;
+import javafx.scene.control.ButtonType;
+import javafx.scene.control.Dialog;
+import javafx.scene.control.Label;
+import javafx.scene.control.ListView;
+import javafx.scene.control.RadioButton;
+import javafx.scene.control.ToggleGroup;
+import javafx.scene.layout.HBox;
+import javafx.scene.layout.VBox;
+import javafx.stage.Modality;
+
+/**
+ * Minecraft版本选择对话框
+ */
+public class VersionSelectDialog extends Dialog<String> {
+    
+    private ListView<String> versionList;
+    private ObservableList<String> versionItems;
+    private RemoteVersionList remoteVersionList;
+    private ToggleGroup versionTypeGroup;
+    private RadioButton releaseButton;
+    private RadioButton snapshotButton;
+    private RadioButton allButton;
+    
+    /**
+     * 创建一个新的版本选择对话框
+     * 
+     * @param remoteVersionList 远程版本列表
+     */
+    public VersionSelectDialog(RemoteVersionList remoteVersionList) {
+        this.remoteVersionList = remoteVersionList;
+        
+        // 设置对话框属性
+        setTitle("选择要下载的Minecraft版本");
+        setHeaderText("请选择要下载的Minecraft版本");
+        initModality(Modality.APPLICATION_MODAL);
+        
+        // 创建版本列表
+        versionItems = FXCollections.observableArrayList();
+        versionList = new ListView<>(versionItems);
+        versionList.setPrefHeight(300);
+        versionList.setPrefWidth(400);
+        
+        // 创建版本类型选择按钮
+        versionTypeGroup = new ToggleGroup();
+        
+        releaseButton = new RadioButton("正式版");
+        releaseButton.setToggleGroup(versionTypeGroup);
+        releaseButton.setSelected(true);
+        releaseButton.setOnAction(e -> updateVersionList("release"));
+        
+        snapshotButton = new RadioButton("快照版");
+        snapshotButton.setToggleGroup(versionTypeGroup);
+        snapshotButton.setOnAction(e -> updateVersionList("snapshot"));
+        
+        allButton = new RadioButton("全部版本");
+        allButton.setToggleGroup(versionTypeGroup);
+        allButton.setOnAction(e -> updateVersionList("all"));
+        
+        // 创建版本类型选择布局
+        HBox versionTypeBox = new HBox(15);
+        versionTypeBox.setAlignment(Pos.CENTER);
+        versionTypeBox.getChildren().addAll(releaseButton, snapshotButton, allButton);
+        
+        // 创建主布局
+        VBox content = new VBox(10);
+        content.setPadding(new Insets(10));
+        content.getChildren().addAll(
+                new Label("版本类型:"),
+                versionTypeBox,
+                new Label("可用版本:"),
+                versionList
+        );
+        
+        // 设置对话框内容
+        getDialogPane().setContent(content);
+        
+        // 添加按钮
+        getDialogPane().getButtonTypes().addAll(ButtonType.OK, ButtonType.CANCEL);
+        
+        // 设置结果转换器
+        setResultConverter(buttonType -> {
+            if (buttonType == ButtonType.OK) {
+                return versionList.getSelectionModel().getSelectedItem();
+            }
+            return null;
+        });
+        
+        // 禁用确定按钮，直到选择了一个版本
+        Button okButton = (Button) getDialogPane().lookupButton(ButtonType.OK);
+        okButton.setDisable(true);
+        
+        versionList.getSelectionModel().selectedItemProperty().addListener((observable, oldValue, newValue) -> {
+            okButton.setDisable(newValue == null);
+        });
+        
+        // 初始加载版本列表
+        updateVersionList("release");
+    }
+    
+    /**
+     * 根据类型更新版本列表
+     * 
+     * @param type 版本类型 (release, snapshot, all)
+     */
+    private void updateVersionList(String type) {
+        versionItems.clear();
+        
+        if (remoteVersionList == null) {
+            return;
+        }
+        
+        Map<String, RemoteVersion> versions = remoteVersionList.getVersions();
+        List<String> filteredVersions = new ArrayList<>();
+        
+        for (RemoteVersion version : versions.values()) {
+            if (type.equals("all") || 
+                (type.equals("release") && "release".equals(version.getType())) ||
+                (type.equals("snapshot") && "snapshot".equals(version.getType()))) {
+                filteredVersions.add(version.getVersion());
+            }
+        }
+        
+        versionItems.addAll(filteredVersions);
+        
+        // 如果有版本，选择第一个
+        if (!versionItems.isEmpty()) {
+            versionList.getSelectionModel().select(0);
+        }
+    }
+}