ops-console v1.0.2 (versionCode 8) 源码入库

lib/models/marquee_config.dart

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+/// 滚动字幕配置参数：速度档位与级别。
+///
+/// 与 Web 后台 `/views/modules/theme/scrolling-text.data.ts` 保持一致，
+/// 移动端仅展示档位文案，落库仍是原始数值，便于与 Web 端互相识别。
+///
+/// 速度（scrollSpeed，单位 ms/像素，数值越小滚动越快）：
+/// - 慢   = 200
+/// - 较慢 = 100
+/// - 中   = 50
+/// - 较快 = 30
+/// - 快   = 10
+///
+/// 级别（level）：
+/// - 危险 = 50
+/// - 紧急 = 40
+/// - 普通 = 20
+class MarqueeConfig {
+  const MarqueeConfig({
+    this.speed = MarqueeSpeed.medium,
+    this.grade = MarqueeGrade.normal,
+  });
+
+  final MarqueeSpeed speed;
+  final MarqueeGrade grade;
+
+  /// 将任意历史 speed 值吸附到最近档位（兼容 Web 端精确值）。
+  static MarqueeSpeed speedFromValue(int? value) {
+    if (value == null) return MarqueeSpeed.medium;
+    final target = MarqueeSpeed.values.fold<MarqueeSpeed>(
+      MarqueeSpeed.values.first,
+      (closest, current) {
+        final diffClosest = (closest.value - value).abs();
+        final diffCurrent = (current.value - value).abs();
+        return diffCurrent < diffClosest ? current : closest;
+      },
+    );
+    return target;
+  }
+
+  /// 将任意历史 level 值吸附到最近级别。
+  static MarqueeGrade gradeFromValue(int? value) {
+    if (value == null) return MarqueeGrade.normal;
+    final target = MarqueeGrade.values.fold<MarqueeGrade>(
+      MarqueeGrade.values.first,
+      (closest, current) {
+        final diffClosest = (closest.value - value).abs();
+        final diffCurrent = (current.value - value).abs();
+        return diffCurrent < diffClosest ? current : closest;
+      },
+    );
+    return target;
+  }
+
+  MarqueeConfig setSpeed(MarqueeSpeed speed) =>
+      MarqueeConfig(speed: speed, grade: grade);
+
+  MarqueeConfig setGrade(MarqueeGrade grade) =>
+      MarqueeConfig(speed: speed, grade: grade);
+
+  MarqueeConfig copyWith({
+    MarqueeSpeed? speed,
+    MarqueeGrade? grade,
+  }) =>
+      MarqueeConfig(
+        speed: speed ?? this.speed,
+        grade: grade ?? this.grade,
+      );
+}
+
+/// 滚动速度档位。
+enum MarqueeSpeed {
+  slow(200, '慢'),
+  slower(100, '较慢'),
+  medium(50, '中'),
+  faster(30, '较快'),
+  fast(10, '快');
+
+  const MarqueeSpeed(this.value, this.labelZh);
+
+  /// 后端落库值。
+  final int value;
+
+  /// 中文展示文案。
+  final String labelZh;
+
+  /// 英文展示文案。
+  String get labelEn {
+    switch (this) {
+      case MarqueeSpeed.slow:
+        return 'Slow';
+      case MarqueeSpeed.slower:
+        return 'Slower';
+      case MarqueeSpeed.medium:
+        return 'Medium';
+      case MarqueeSpeed.faster:
+        return 'Faster';
+      case MarqueeSpeed.fast:
+        return 'Fast';
+    }
+  }
+
+  String label(bool useEnglish) => useEnglish ? labelEn : labelZh;
+}
+
+/// 滚动字幕级别。
+enum MarqueeGrade {
+  danger(50, '危险'),
+  urgent(40, '紧急'),
+  normal(20, '普通');
+
+  const MarqueeGrade(this.value, this.labelZh);
+
+  /// 后端落库值。
+  final int value;
+
+  /// 中文展示文案。
+  final String labelZh;
+
+  /// 英文展示文案。
+  String get labelEn {
+    switch (this) {
+      case MarqueeGrade.danger:
+        return 'Danger';
+      case MarqueeGrade.urgent:
+        return 'Urgent';
+      case MarqueeGrade.normal:
+        return 'Normal';
+    }
+  }
+
+  String label(bool useEnglish) => useEnglish ? labelEn : labelZh;
+}