v5-old

lib/v5/pages/sort/bloc/sort_config.dart

@@ -0,0 +1,19 @@
+import 'dart:ui';
+
+import 'package:flutter/material.dart';
+
+class SortConfig {
+  final int count;
+  final int seed;
+  final Duration duration;
+  final String name;
+
+  SortConfig(this.count, this.duration,this.seed,this.name);
+}
+
+final ValueNotifier<SortConfig> sortConfig = ValueNotifier(
+  SortConfig(-1, const Duration(microseconds: 1500),-1,'quick'),
+);
+
+
+final ValueNotifier<String> sortName = ValueNotifier('quick');

lib/v5/pages/sort/bloc/state.dart

@@ -0,0 +1,77 @@
+import 'dart:math';
+
+import 'package:flutter/cupertino.dart';
+
+import '../functions.dart';
+import 'sort_config.dart';
+
+enum SortStatus{
+  none, // 未操作
+  sorting, // 排序中
+  sorted, // 排序完成
+}
+
+class SortState with ChangeNotifier{
+
+  SortStatus status = SortStatus.none;
+
+  List<int> data = [];
+
+  SortConfig _config = SortConfig(-1, const Duration(microseconds: 1500),-1,'quick');
+  SortConfig get config => _config;
+  Random random = Random();
+
+  set config(SortConfig config){
+    _config = config;
+    reset(_zoneSize);
+    notifyListeners();
+  }
+
+  Size _zoneSize = Size.zero;
+
+  void reset(Size zoneSize){
+    _zoneSize = zoneSize;
+    status = SortStatus.sorting;
+    int count = config.count;
+    if(count==-1){
+      count = zoneSize.width~/2;
+    }
+    if(config.seed!=-1){
+      random = Random(config.seed);
+    }
+    for (int i = 0; i < count; i++) {
+      //随机往数组中填值
+      data.add(random.nextInt(zoneSize.height.toInt()));
+    }
+  }
+
+  void sort() async{
+    status = SortStatus.sorting;
+    notifyListeners();
+    Stopwatch stopwatch = Stopwatch()..start();
+    SortFunction? sortFunction = sortFunctionMap[config.name];
+    if(sortFunction!=null){
+      await sortFunction(data,(arr) async {
+        await Future.delayed(config.duration);
+        data = arr;
+        notifyListeners();
+      });
+    }
+    status = SortStatus.sorted;
+    notifyListeners();
+    stopwatch.stop();
+    print("Sorting completed in ${stopwatch.elapsed.inMilliseconds} ms.");
+  }
+}
+
+/// Provides the current [SortState] to descendant widgets in the tree.
+class SortStateScope extends InheritedNotifier<SortState> {
+  const SortStateScope({
+    required super.notifier,
+    required super.child,
+    super.key,
+  });
+
+  static SortState of(BuildContext context) =>
+      context.dependOnInheritedWidgetOfExactType<SortStateScope>()!.notifier!;
+}