高亮生效

win_text_editor/lib/app/widgets/text_tab.dart

@@ -1,3 +1,5 @@
+import 'dart:ui';
+
 import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
 import 'package:flutter/services.dart'; // 复制功能需要
@@ -21,6 +23,7 @@ class _TextTabState extends State<TextTab> {
   late TextEditingController _controller;
   late EditorProvider _provider;
   late FocusNode _focusNode;
+  late ScrollController _scrollController;
   String _language = 'plaintext';
 
   @override
@@ -29,6 +32,7 @@ class _TextTabState extends State<TextTab> {
     _provider = Provider.of<EditorProvider>(context, listen: false);
     _controller = TextEditingController(text: _getCurrentContent());
     _focusNode = FocusNode();
+    _scrollController = ScrollController(); // 添加这行
     _detectLanguage();
   }
 
@@ -95,6 +99,7 @@ class _TextTabState extends State<TextTab> {
   void dispose() {
     _controller.dispose();
     _focusNode.dispose();
+    _scrollController.dispose(); // 添加这行
     super.dispose();
   }
 
@@ -148,6 +153,7 @@ class _TextTabState extends State<TextTab> {
                     },
                     items:
                         <String>[
+                          'xml',
                           'plaintext',
                           'dart',
                           'java',
@@ -167,34 +173,44 @@ class _TextTabState extends State<TextTab> {
           ),
         ),
         Expanded(
-          child: Stack(
-            children: [
-              // 高亮显示的背景文本
-              HighlightView(
-                tab.content,
-                language: _language,
-                theme: isDarkMode ? monokaiSublimeTheme : githubTheme,
-                padding: const EdgeInsets.all(16),
-                textStyle: const TextStyle(fontFamily: 'monospace', fontSize: 14),
-              ),
-              // 实际可编辑的TextField
-              TextField(
-                controller: _controller,
-                focusNode: _focusNode,
-                maxLines: null,
-                onChanged: (text) => _provider.updateContent(widget.tabId, text),
-                decoration: const InputDecoration(
-                  border: InputBorder.none,
-                  contentPadding: EdgeInsets.all(16),
-                ),
-                style: const TextStyle(
-                  fontFamily: 'monospace',
-                  fontSize: 14,
-                  color: Colors.transparent, // 使文本透明，只显示高亮背景
-                ),
-                cursorColor: Colors.black, // 光标颜色
+          child: ScrollConfiguration(
+            behavior: ScrollConfiguration.of(context).copyWith(
+              scrollbars: true,
+              dragDevices: {PointerDeviceKind.touch, PointerDeviceKind.mouse},
+            ),
+            child: SingleChildScrollView(
+              controller: _scrollController, // 添加滚动控制器
+              child: Stack(
+                children: [
+                  // 高亮显示的背景文本
+                  HighlightView(
+                    tab.content,
+                    language: _language,
+                    theme: isDarkMode ? monokaiSublimeTheme : githubTheme,
+                    padding: const EdgeInsets.all(16),
+                    textStyle: const TextStyle(fontFamily: 'monospace', fontSize: 14),
+                  ),
+                  // 实际可编辑的TextField
+                  TextField(
+                    controller: _controller,
+                    focusNode: _focusNode,
+                    maxLines: null,
+                    scrollController: _scrollController, // 使用同一个滚动控制器
+                    onChanged: (text) => _provider.updateContent(widget.tabId, text),
+                    decoration: const InputDecoration(
+                      border: InputBorder.none,
+                      contentPadding: EdgeInsets.all(16),
+                    ),
+                    style: const TextStyle(
+                      fontFamily: 'monospace',
+                      fontSize: 14,
+                      color: Colors.transparent,
+                    ),
+                    cursorColor: Colors.black,
+                  ),
+                ],
               ),
-            ],
+            ),
           ),
         ),
       ],