new: cpu line chart

lib/core/route.dart

@@ -10,7 +10,7 @@ import 'package:toolbox/view/page/ping.dart';
 import 'package:toolbox/view/page/private_key/edit.dart';
 import 'package:toolbox/view/page/private_key/list.dart';
 import 'package:toolbox/view/page/pve.dart';
-import 'package:toolbox/view/page/server/detail.dart';
+import 'package:toolbox/view/page/server/detail/view.dart';
 import 'package:toolbox/view/page/setting/platform/android.dart';
 import 'package:toolbox/view/page/setting/platform/ios.dart';
 import 'package:toolbox/view/page/setting/seq/srv_func_seq.dart';

lib/data/model/app/range.dart

@@ -0,0 +1,11 @@
+final class Range<T extends num> {
+  final T start;
+  final T end;
+
+  Range(this.start, this.end);
+
+  bool contains(int value) => value >= start && value <= end;
+
+  @override
+  String toString() => 'Range($start, $end)';
+}

lib/data/model/server/cpu.dart

@@ -1,9 +1,13 @@
 import 'dart:collection';
 
+import 'package:fl_chart/fl_chart.dart';
+import 'package:toolbox/data/model/app/range.dart';
 import 'package:toolbox/data/model/server/time_seq.dart';
 import 'package:toolbox/data/res/status.dart';
 
-class Cpus extends TimeSeq<List<OneTimeCpuStatus>> {
+const _kCap = 30;
+
+class Cpus extends TimeSeq<List<SingleCoreCpu>> {
   Cpus(super.init1, super.init2);
 
   @override
@@ -14,6 +18,8 @@ class Cpus extends TimeSeq<List<OneTimeCpuStatus>> {
     _sys = _getSys();
     _iowait = _getIowait();
     _idle = _getIdle();
+    _updateSpots();
+    _updateRange();
   }
 
   double usedPercent({int coreIdx = 0}) {
@@ -60,9 +66,53 @@ class Cpus extends TimeSeq<List<OneTimeCpuStatus>> {
   double _idle = 0;
   double get idle => _idle;
   double _getIdle() => 100 - usedPercent();
+
+  /// [core1, core2]
+  /// core1: [FlSpot(0, 10), FlSpot(1, 20), FlSpot(2, 30)]
+  final _spots = <Fifo<FlSpot>>[];
+  List<Fifo<FlSpot>> get spots => _spots;
+  void _updateSpots() {
+    for (var i = 1; i < now.length; i++) {
+      if (i >= _spots.length) {
+        _spots.add(Fifo(capacity: _kCap));
+      } else {
+        final item = _spots[i];
+        final spot = FlSpot(item.count.toDouble(), usedPercent(coreIdx: i));
+        item.add(spot);
+      }
+    }
+  }
+
+  var _rangeX = Range<double>(0.0, _kCap.toDouble());
+  Range<double> get rangeX => _rangeX;
+  // var _rangeY = Range<double>(0.0, 100.0);
+  // Range<double> get rangeY => _rangeY;
+  void _updateRange() {
+    double? minX, maxX;
+    for (var i = 1; i < now.length; i++) {
+      final item = _spots[i];
+      if (item.isEmpty) continue;
+      final first = item.first.x;
+      final last = item.last.x;
+      if (minX == null || first < minX) minX = first;
+      if (maxX == null || last > maxX) maxX = last;
+    }
+    if (minX != null && maxX != null) _rangeX = Range(minX, maxX);
+
+    // double? minY, maxY;
+    // for (var i = 1; i < now.length; i++) {
+    //   final item = _spots[i];
+    //   if (item.isEmpty) continue;
+    //   final first = item.first.y;
+    //   final last = item.last.y;
+    //   if (minY == null || first < minY) minY = first;
+    //   if (maxY == null || last > maxY) maxY = last;
+    // }
+    // if (minY != null && maxY != null) _rangeY = Range(minY, maxY);
+  }
 }
 
-class OneTimeCpuStatus extends TimeSeqIface<OneTimeCpuStatus> {
+class SingleCoreCpu extends TimeSeqIface<SingleCoreCpu> {
   final String id;
   final int user;
   final int sys;
@@ -72,7 +122,7 @@ class OneTimeCpuStatus extends TimeSeqIface<OneTimeCpuStatus> {
   final int irq;
   final int softirq;
 
-  OneTimeCpuStatus(
+  SingleCoreCpu(
     this.id,
     this.user,
     this.sys,
@@ -86,10 +136,10 @@ class OneTimeCpuStatus extends TimeSeqIface<OneTimeCpuStatus> {
   int get total => user + sys + nice + idle + iowait + irq + softirq;
 
   @override
-  bool same(OneTimeCpuStatus other) => id == other.id;
+  bool same(SingleCoreCpu other) => id == other.id;
 
-  static List<OneTimeCpuStatus> parse(String raw) {
+  static List<SingleCoreCpu> parse(String raw) {
-    final List<OneTimeCpuStatus> cpus = [];
+    final List<SingleCoreCpu> cpus = [];
 
     for (var item in raw.split('\n')) {
       if (item == '') break;
@@ -97,7 +147,7 @@ class OneTimeCpuStatus extends TimeSeqIface<OneTimeCpuStatus> {
       if (id == null) continue;
       final matches = item.replaceFirst(id, '').trim().split(' ');
       cpus.add(
-        OneTimeCpuStatus(
+        SingleCoreCpu(
           id,
           int.parse(matches[0]),
           int.parse(matches[1]),
@@ -128,7 +178,7 @@ Cpus parseBsdCpu(String raw) {
 
   final init = InitStatus.cpus;
   init.add([
-    OneTimeCpuStatus('cpu', percents[0].toInt(), 0, 0,
+    SingleCoreCpu('cpu', percents[0].toInt(), 0, 0,
         percents[2].toInt() + percents[1].toInt(), 0, 0, 0),
   ]);
   return init;

lib/data/model/server/server_status_update_req.dart

@@ -69,7 +69,7 @@ Future<ServerStatus> _getLinuxStatus(ServerStatusUpdateReq req) async {
   }
 
   try {
-    final cpus = OneTimeCpuStatus.parse(StatusCmdType.cpu.find(segments));
+    final cpus = SingleCoreCpu.parse(StatusCmdType.cpu.find(segments));
     req.ss.cpu.update(cpus);
   } catch (e, s) {
     Loggers.parse.warning(e, s);

lib/data/model/server/time_seq.dart

@@ -1,21 +1,16 @@
 import 'dart:collection';
 
-/// A FIFO queue with fixed capacity.
+class Fifo<T> extends ListBase<T> {
-abstract class TimeSeq<T extends List<TimeSeqIface>> extends ListBase<T> {
   final int capacity;
   late final List<T> _list;
+  var _count = 0;
 
-  /// Due to the design, at least two elements are required, otherwise [pre] /
+  Fifo({this.capacity = 30, List<T>? list}) : _list = list ?? <T>[];
-  /// [now] will throw.
-  TimeSeq(
-    T init1,
-    T init2, {
-    this.capacity = 30,
-  }) : _list = [init1, init2];
 
   @override
   void add(element) {
-    if (length == capacity) {
+    _count++;
+    if (_list.length == capacity) {
       _list.removeAt(0);
     }
     _list.add(element);
@@ -24,6 +19,8 @@ abstract class TimeSeq<T extends List<TimeSeqIface>> extends ListBase<T> {
   @override
   int get length => _list.length;
 
+  int get count => _count;
+
   @override
   set length(int newLength) {
     throw UnimplementedError();
@@ -38,6 +35,16 @@ abstract class TimeSeq<T extends List<TimeSeqIface>> extends ListBase<T> {
   void operator []=(int index, value) {
     _list[index] = value;
   }
+}
+
+abstract class TimeSeq<T extends List<TimeSeqIface>> extends Fifo<T> {
+  /// Due to the design, at least two elements are required, otherwise [pre] /
+  /// [now] will throw.
+  TimeSeq(
+    T init1,
+    T init2, {
+    super.capacity,
+  }) : super(list: [init1, init2]);
 
   T get pre {
     return _list[length - 2];

lib/data/res/status.dart

@@ -9,7 +9,7 @@ import '../model/server/conn.dart';
 import '../model/server/system.dart';
 
 abstract final class InitStatus {
-  static OneTimeCpuStatus get _initOneTimeCpuStatus => OneTimeCpuStatus(
+  static SingleCoreCpu get _initOneTimeCpuStatus => SingleCoreCpu(
         'cpu',
         0,
         0,

lib/view/page/server/detail/misc.dart

@@ -0,0 +1,113 @@
+part of 'view.dart';
+
+enum _NetSortType {
+  device,
+  trans,
+  recv,
+  ;
+
+  bool get isDevice => this == _NetSortType.device;
+  bool get isIn => this == _NetSortType.recv;
+  bool get isOut => this == _NetSortType.trans;
+
+  _NetSortType get next {
+    switch (this) {
+      case device:
+        return trans;
+      case _NetSortType.trans:
+        return recv;
+      case recv:
+        return device;
+    }
+  }
+
+  int Function(String, String) getSortFunc(NetSpeed ns) {
+    switch (this) {
+      case _NetSortType.device:
+        return (b, a) => a.compareTo(b);
+      case _NetSortType.recv:
+        return (b, a) => ns
+            .speedInBytes(ns.deviceIdx(a))
+            .compareTo(ns.speedInBytes(ns.deviceIdx(b)));
+      case _NetSortType.trans:
+        return (b, a) => ns
+            .speedOutBytes(ns.deviceIdx(a))
+            .compareTo(ns.speedOutBytes(ns.deviceIdx(b)));
+    }
+  }
+}
+
+Widget _buildLineChart(List<List<FlSpot>> spots, Range<double> x) {
+  return LineChart(LineChartData(
+    lineTouchData: LineTouchData(
+      touchTooltipData: LineTouchTooltipData(
+        tooltipPadding: const EdgeInsets.all(8),
+        tooltipRoundedRadius: 8,
+        getTooltipItems: (List<LineBarSpot> touchedSpots) {
+          return touchedSpots.map((e) {
+            return LineTooltipItem(
+              'CPU${e.barIndex}: ${e.y.toStringAsFixed(2)}',
+              const TextStyle(
+                fontWeight: FontWeight.bold,
+              ),
+            );
+          }).toList();
+        },
+      ),
+      handleBuiltInTouches: true,
+    ),
+    gridData: FlGridData(
+      show: true,
+      drawVerticalLine: false,
+      horizontalInterval: 20,
+      getDrawingHorizontalLine: (value) {
+        return const FlLine(
+          color: Color(0xff37434d),
+          strokeWidth: 1,
+        );
+      },
+    ),
+    titlesData: FlTitlesData(
+      show: true,
+      rightTitles: const AxisTitles(
+        sideTitles: SideTitles(showTitles: false),
+      ),
+      topTitles: const AxisTitles(
+        sideTitles: SideTitles(showTitles: false),
+      ),
+      bottomTitles: const AxisTitles(
+        sideTitles: SideTitles(showTitles: false),
+      ),
+      leftTitles: AxisTitles(
+        sideTitles: SideTitles(
+          showTitles: true,
+          interval: 1,
+          getTitlesWidget: (val, meta) {
+            if (val % 20 != 0) return UIs.placeholder;
+            return Text(
+              val.toInt().toString(),
+              style: UIs.text12Grey,
+            );
+          },
+          reservedSize: 42,
+        ),
+      ),
+    ),
+    borderData: FlBorderData(show: false),
+    minX: x.start,
+    maxX: x.end,
+    minY: 0,
+    maxY: 100,
+    lineBarsData: spots
+        .map((e) => LineChartBarData(
+              spots: e,
+              isCurved: false,
+              barWidth: 2,
+              isStrokeCapRound: true,
+              color: primaryColor,
+              dotData: const FlDotData(show: false),
+              belowBarData: BarAreaData(show: false),
+            ))
+        .toList(),
+  ));
+}

lib/view/page/server/detail/view.dart

@@ -1,13 +1,14 @@
+import 'package:fl_chart/fl_chart.dart';
 import 'package:flutter/material.dart';
 import 'package:icons_plus/icons_plus.dart';
 import 'package:provider/provider.dart';
 import 'package:toolbox/core/extension/context/common.dart';
 import 'package:toolbox/core/extension/context/dialog.dart';
 import 'package:toolbox/core/extension/context/locale.dart';
+import 'package:toolbox/data/model/app/range.dart';
 import 'package:toolbox/data/model/app/server_detail_card.dart';
 import 'package:toolbox/data/model/app/shell_func.dart';
 import 'package:toolbox/data/model/server/battery.dart';
-import 'package:toolbox/data/model/server/cpu.dart';
 import 'package:toolbox/data/model/server/disk.dart';
 import 'package:toolbox/data/model/server/net_speed.dart';
 import 'package:toolbox/data/model/server/nvdia.dart';
@@ -19,14 +20,16 @@ import 'package:toolbox/view/widget/expand_tile.dart';
 import 'package:toolbox/view/widget/kv_row.dart';
 import 'package:toolbox/view/widget/server_func_btns.dart';
 
-import '../../../core/extension/numx.dart';
+import '../../../../core/extension/numx.dart';
-import '../../../core/route.dart';
+import '../../../../core/route.dart';
-import '../../../data/model/server/server.dart';
+import '../../../../data/model/server/server.dart';
-import '../../../data/provider/server.dart';
+import '../../../../data/provider/server.dart';
-import '../../../data/res/color.dart';
+import '../../../../data/res/color.dart';
-import '../../../data/res/ui.dart';
+import '../../../../data/res/ui.dart';
-import '../../widget/appbar.dart';
+import '../../../widget/appbar.dart';
-import '../../widget/cardx.dart';
+import '../../../widget/cardx.dart';
+
+part 'misc.dart';
 
 class ServerDetailPage extends StatefulWidget {
   const ServerDetailPage({super.key, required this.spi});
@@ -183,12 +186,21 @@ class _ServerDetailPageState extends State<ServerDetailPage>
           ),
         ),
         childrenPadding: const EdgeInsets.symmetric(vertical: 13),
-        initiallyExpanded: _getInitExpand(ss.cpu.coresCount),
+        initiallyExpanded: true,
         trailing: Row(
           mainAxisSize: MainAxisSize.min,
           children: details,
         ),
-        children: _buildCPUProgress(ss.cpu),
+        children: [
+          Padding(
+            padding: const EdgeInsets.symmetric(horizontal: 17, vertical: 7),
+            child: SizedBox(
+              height: 137,
+              width: _media.size.width - 26 - 34,
+              child: _buildLineChart(ss.cpu.spots, ss.cpu.rangeX),
+            ),
+          ),
+        ],
       ),
     );
   }
@@ -213,20 +225,6 @@ class _ServerDetailPageState extends State<ServerDetailPage>
     );
   }
 
-  List<Widget> _buildCPUProgress(Cpus cs) {
-    final children = <Widget>[];
-    for (var i = 0; i < cs.coresCount; i++) {
-      if (i == 0) continue;
-      children.add(
-        Padding(
-          padding: const EdgeInsets.symmetric(vertical: 3, horizontal: 17),
-          child: _buildProgress(cs.usedPercent(coreIdx: i)),
-        ),
-      );
-    }
-    return children;
-  }
-
   Widget _buildProgress(double percent) {
     if (percent > 100) percent = 100;
     final percentWithinOne = percent / 100;
@@ -756,40 +754,3 @@ class _ServerDetailPageState extends State<ServerDetailPage>
     return len <= (max ?? 3);
   }
 }
-
-enum _NetSortType {
-  device,
-  trans,
-  recv,
-  ;
-
-  bool get isDevice => this == _NetSortType.device;
-  bool get isIn => this == _NetSortType.recv;
-  bool get isOut => this == _NetSortType.trans;
-
-  _NetSortType get next {
-    switch (this) {
-      case device:
-        return trans;
-      case _NetSortType.trans:
-        return recv;
-      case recv:
-        return device;
-    }
-  }
-
-  int Function(String, String) getSortFunc(NetSpeed ns) {
-    switch (this) {
-      case _NetSortType.device:
-        return (b, a) => a.compareTo(b);
-      case _NetSortType.recv:
-        return (b, a) => ns
-            .speedInBytes(ns.deviceIdx(a))
-            .compareTo(ns.speedInBytes(ns.deviceIdx(b)));
-      case _NetSortType.trans:
-        return (b, a) => ns
-            .speedOutBytes(ns.deviceIdx(a))
-            .compareTo(ns.speedOutBytes(ns.deviceIdx(b)));
-    }
-  }
-}

pubspec.lock

@@ -339,6 +339,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.1.0"
+  fl_chart:
+    dependency: "direct main"
+    description:
+      name: fl_chart
+      sha256: "2b7c1f5d867da9a054661641c8f499c55c47c39acccb97b3bc673f5fa9a39e74"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.67.0"
   flutter:
     dependency: "direct main"
     description: flutter

pubspec.yaml

@@ -74,6 +74,7 @@ dependencies:
   flutter_background_service: ^5.0.5
   icons_plus: ^5.0.0
   permission_handler: ^11.3.1
+  fl_chart: ^0.67.0
 
 dev_dependencies:
   flutter_native_splash: ^2.1.6