马良AI写作初始化仓库

AINoval/lib/screens/settings/widgets/ai_assist_toolbar.dart

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+import 'package:flutter/material.dart';
+import 'package:ainoval/models/prompt_models.dart';
+
+/// AI辅助工具栏组件
+class AIAssistToolbar extends StatelessWidget {
+  /// 是否正在处理中
+  final bool isProcessing;
+  
+  /// 当前选择的优化风格
+  final OptimizationStyle selectedStyle;
+  
+  /// 风格变更回调
+  final Function(OptimizationStyle) onStyleChanged;
+  
+  /// 当前保留比例 (0.0-1.0)
+  final double preserveRatio;
+  
+  /// 保留比例变更回调
+  final Function(double) onRatioChanged;
+  
+  /// 点击优化按钮的回调
+  final VoidCallback onOptimizeRequested;
+  
+  const AIAssistToolbar({
+    Key? key,
+    this.isProcessing = false,
+    required this.selectedStyle,
+    required this.onStyleChanged,
+    required this.preserveRatio,
+    required this.onRatioChanged,
+    required this.onOptimizeRequested,
+  }) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    final theme = Theme.of(context);
+    final isLight = theme.brightness == Brightness.light;
+    final foregroundOnDark = Colors.white;
+
+    return Container(
+      margin: const EdgeInsets.symmetric(vertical: 16),
+      padding: const EdgeInsets.all(16),
+      decoration: BoxDecoration(
+        // 浅色主题下，工具栏使用黑色背景、白色文字
+        color: isLight
+            ? Colors.black
+            : Theme.of(context).colorScheme.primaryContainer.withOpacity(0.2),
+        borderRadius: BorderRadius.circular(8),
+        border: Border.all(
+          color: isLight
+              ? Colors.white.withOpacity(0.2)
+              : Theme.of(context).colorScheme.primary.withOpacity(0.3),
+        ),
+      ),
+      child: Column(
+        crossAxisAlignment: CrossAxisAlignment.start,
+        children: [
+          // 标题
+          Row(
+            children: [
+              Icon(
+                Icons.auto_awesome,
+                size: 18,
+                color: isLight ? foregroundOnDark : Theme.of(context).colorScheme.primary,
+              ),
+              const SizedBox(width: 8),
+              Text(
+                'AI 辅助优化',
+                style: TextStyle(
+                  fontWeight: FontWeight.bold,
+                  color: isLight ? foregroundOnDark : Theme.of(context).colorScheme.primary,
+                ),
+              ),
+            ],
+          ),
+          const SizedBox(height: 16),
+          
+          // 优化风格选择和保留比例设置
+          Row(
+            children: [
+              // 优化风格选择
+              Expanded(
+                child: Column(
+                  crossAxisAlignment: CrossAxisAlignment.start,
+                  children: [
+                    Text(
+                      '优化风格:',
+                      style: TextStyle(color: isLight ? foregroundOnDark : null),
+                    ),
+                    const SizedBox(height: 8),
+                    _buildStyleSelector(context),
+                  ],
+                ),
+              ),
+              const SizedBox(width: 24),
+              
+              // 保留比例设置
+              Expanded(
+                child: Column(
+                  crossAxisAlignment: CrossAxisAlignment.start,
+                  children: [
+                    Text(
+                      '保留原始内容: ${(preserveRatio * 100).toInt()}%',
+                      style: TextStyle(color: isLight ? foregroundOnDark : null),
+                    ),
+                    Slider(
+                      value: preserveRatio,
+                      min: 0.0,
+                      max: 1.0,
+                      divisions: 10,
+                      label: '${(preserveRatio * 100).toInt()}%',
+                      onChanged: isProcessing ? null : onRatioChanged,
+                    ),
+                  ],
+                ),
+              ),
+            ],
+          ),
+          
+          // 优化按钮
+          Align(
+            alignment: Alignment.centerRight,
+            child: FilledButton.icon(
+              icon: isProcessing
+                  ? Container(
+                      width: 16,
+                      height: 16,
+                      child: const CircularProgressIndicator(
+                        strokeWidth: 2,
+                        valueColor: AlwaysStoppedAnimation<Color>(Colors.white),
+                      ),
+                    )
+                  : const Icon(Icons.auto_fix_high, size: 16),
+              label: Text(isProcessing ? '正在优化...' : 'AI优化'),
+              onPressed: isProcessing ? null : onOptimizeRequested,
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+  
+  /// 构建风格选择器
+  Widget _buildStyleSelector(BuildContext context) {
+    return SegmentedButton<OptimizationStyle>(
+      segments: [
+        ButtonSegment<OptimizationStyle>(
+          value: OptimizationStyle.professional,
+          label: const Text('专业'),
+          icon: const Icon(Icons.business),
+        ),
+        ButtonSegment<OptimizationStyle>(
+          value: OptimizationStyle.creative,
+          label: const Text('创意'),
+          icon: const Icon(Icons.lightbulb),
+        ),
+        ButtonSegment<OptimizationStyle>(
+          value: OptimizationStyle.concise,
+          label: const Text('简洁'),
+          icon: const Icon(Icons.short_text),
+        ),
+      ],
+      selected: {selectedStyle},
+      onSelectionChanged: isProcessing 
+          ? null 
+          : (Set<OptimizationStyle> selection) {
+              if (selection.isNotEmpty) {
+                onStyleChanged(selection.first);
+              }
+            },
+    );
+  }
+}