Jokul
fba506d9d8
全部44处qsTr源串改为英文，新建translations/jnetapplet_zh_CN.ts 中文翻译文件。CMake增加LinguistTools+qt_add_translation编译 .ts->.qm，init()按系统语言加载.qm并安装到qApp。 中文系统显示中文翻译，英文系统显示英文源串。
526 lines
20 KiB
C++
526 lines
20 KiB
C++
// SPDX-FileCopyrightText: 2026 Jokul
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//
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// SPDX-License-Identifier: LGPL-3.0-or-later
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#include "networkmonitorapplet.h"
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#include <pluginfactory.h>
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#include <QFile>
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#include <QTextStream>
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#include <QDebug>
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#include <QDir>
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#include <QRegularExpression>
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#include <QNetworkInterface>
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#include <QColor>
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#include <QSettings>
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#include <QStandardPaths>
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#include <QTranslator>
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#include <QLocale>
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#include <QCoreApplication>
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DS_BEGIN_NAMESPACE
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NetworkMonitorApplet::NetworkMonitorApplet(QObject *parent)
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: DApplet(parent)
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, m_refreshTimer(nullptr)
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, m_lastRxBytes(0)
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, m_lastTxBytes(0)
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, m_lastTimestampMs(0)
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, m_downloadSpeed(0)
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, m_uploadSpeed(0)
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, m_totalDownload(0)
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, m_totalUpload(0)
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, m_ready(false)
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, m_firstUpdate(true)
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, m_textColor()
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{
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// 从独立配置文件读取持久化的字体颜色
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// 设计原因：使用独立配置文件避免污染 dde-shell 的共享配置，
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// 空串表示"跟随系统"，由 QML 层回退到 primaryText 实现
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const QString configPath = QStandardPaths::writableLocation(QStandardPaths::ConfigLocation)
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+ QStringLiteral("/jnetapplet/settings.ini");
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QSettings settings(configPath, QSettings::IniFormat);
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if (settings.contains(QStringLiteral("textColor"))) {
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const QString saved = settings.value(QStringLiteral("textColor")).toString();
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// 空串合法（跟随系统），非空则校验是否为合法颜色值
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if (saved.isEmpty() || QColor::isValidColorName(saved)) {
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m_textColor = saved;
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}
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// 若校验失败则保持空串默认值（跟随系统），不抛出也不记录
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}
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// 从配置文件读取持久化的活动接口，启动时自动恢复用户上次选择
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// 设计原因：用户手动选择的网卡应跨重启保持，而非每次启动重新自动检测；
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// 若保存的接口已不存在（如 USB 网卡拔出），readNetworkStats 会清空并回退到自动选择
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if (settings.contains(QStringLiteral("activeInterface"))) {
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m_activeInterface = settings.value(QStringLiteral("activeInterface")).toString();
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}
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}
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NetworkMonitorApplet::~NetworkMonitorApplet()
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{
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}
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bool NetworkMonitorApplet::load()
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{
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return DApplet::load();
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}
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bool NetworkMonitorApplet::init()
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{
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// 加载翻译文件：根据系统语言加载对应的 .qm 文件
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// 设计原因：QML 源串为英文，中文翻译通过 .qm 文件在运行时加载。
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// 翻译上下文为 QML 文件名（如 "networkview"、"AboutWindow"），
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// 安装到 QCoreApplication 后 qsTr() 自动查找匹配。
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QTranslator *translator = new QTranslator(this);
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const QString locale = QLocale::system().name();
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if (translator->load(QStringLiteral("jnetapplet_%1.qm").arg(locale),
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QStringLiteral(TRANSLATIONS_DIR))) {
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qApp->installTranslator(translator);
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}
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detectInterfaces();
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// 启动定时刷新
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m_refreshTimer = new QTimer(this);
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connect(m_refreshTimer, &QTimer::timeout, this, &NetworkMonitorApplet::refresh);
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m_refreshTimer->start(1000); // 每秒刷新一次
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// 初始读取
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readNetworkStats();
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return DApplet::init();
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}
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double NetworkMonitorApplet::downloadSpeed() const
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{
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return m_downloadSpeed;
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}
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double NetworkMonitorApplet::uploadSpeed() const
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{
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return m_uploadSpeed;
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}
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double NetworkMonitorApplet::totalDownload() const
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{
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return static_cast<double>(m_totalDownload);
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}
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double NetworkMonitorApplet::totalUpload() const
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{
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return static_cast<double>(m_totalUpload);
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}
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QStringList NetworkMonitorApplet::networkInterfaces() const
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{
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return m_interfaceList;
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}
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bool NetworkMonitorApplet::ready() const
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{
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return m_ready;
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}
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QString NetworkMonitorApplet::activeInterface() const
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{
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return m_activeInterface;
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}
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// 返回活动接口的 IPv4 地址，供 QML 显示
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QString NetworkMonitorApplet::ipAddress() const
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{
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return m_ipAddress;
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}
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// 返回活动接口的 IPv6 全球地址，供 QML 显示
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QString NetworkMonitorApplet::ipv6Address() const
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{
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return m_ipv6Address;
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}
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// 返回插件版本号，从 dde-shell 插件元数据（metadata.json）读取
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// 版本唯一源为 CMakeLists.txt 的 project(VERSION)，经 configure_file 写入 metadata.json，
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// dde-shell 加载时存入 DPluginMetaData，此处通过继承自 DApplet 的 pluginMetaData() 读取
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QString NetworkMonitorApplet::version() const
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{
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// DPluginMetaData::value() 已在 "Plugin" 层级内部查找（源码：frame/pluginmetadata.cpp）
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// metadata.json 的 { "Plugin": { "Version": "x.y.z" } } 被 DPluginMetaData 加载后，
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// value("Version") 直接返回版本号，无需再 .value("Plugin").toMap() 展开
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const QString ver = pluginMetaData().value("Version").toString();
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// 兜底：元数据未加载或无 Version 字段时回退到编译时版本号
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// 设计原因：QML 各处 version 属性兜底不一致（networkview.qml 有 "1.0"，AboutWindow 无），
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// 统一在后端兜底，避免 AboutWindow 版本行显示空白
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return ver.isEmpty() ? QStringLiteral(PROJECT_VERSION) : ver;
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}
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// 返回任务栏网速字体颜色，空串表示跟随系统主题
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QString NetworkMonitorApplet::textColor() const
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{
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return m_textColor;
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}
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// 设置任务栏网速字体颜色，空串表示跟随系统主题
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// 设计原因：
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// - 空串语义：空串作为"跟随系统"的语义值，QML 层用 textColor ? textColor : primaryText 做回退，
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// 避免后端硬编码系统色
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// - 校验逻辑：非空颜色值通过 QColor::isValidColor 校验，无效值直接忽略，不存储不发射信号
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// - 独立配置文件：使用 ~/.config/jnetapplet/settings.ini 而非 dde-shell 共享配置，
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// 避免污染其他组件的配置空间
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void NetworkMonitorApplet::setTextColor(const QString &color)
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{
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// 空串视为合法（表示跟随系统），不校验
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if (!color.isEmpty() && !QColor::isValidColorName(color)) {
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return;
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}
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if (m_textColor == color) {
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return;
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}
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m_textColor = color;
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// 持久化到独立配置文件
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const QString configPath = QStandardPaths::writableLocation(QStandardPaths::ConfigLocation)
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+ QStringLiteral("/jnetapplet/settings.ini");
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QSettings settings(configPath, QSettings::IniFormat);
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settings.setValue(QStringLiteral("textColor"), m_textColor);
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settings.sync();
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emit textColorChanged();
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}
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// 返回当前活动接口的下行速度历史，转换为 QVariantList of QPointF 供 QML 使用
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// 设计原因：QPointF 仅携带 x/y 两个值，上传与下载分别对应两个列表
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QVariantList NetworkMonitorApplet::speedHistoryDownload() const
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{
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QVariantList list;
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if (m_activeInterface.isEmpty() || !m_speedHistory.contains(m_activeInterface)) {
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return list;
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}
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const QVector<SpeedSample> &samples = m_speedHistory[m_activeInterface];
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list.reserve(samples.size());
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for (const SpeedSample &s : samples) {
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list.append(QPointF(s.timestamp, s.downloadSpeed));
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}
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return list;
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}
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// 返回当前活动接口的上行速度历史，结构同 speedHistoryDownload
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QVariantList NetworkMonitorApplet::speedHistoryUpload() const
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{
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QVariantList list;
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if (m_activeInterface.isEmpty() || !m_speedHistory.contains(m_activeInterface)) {
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return list;
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}
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const QVector<SpeedSample> &samples = m_speedHistory[m_activeInterface];
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list.reserve(samples.size());
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for (const SpeedSample &s : samples) {
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list.append(QPointF(s.timestamp, s.uploadSpeed));
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}
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return list;
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}
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void NetworkMonitorApplet::refresh()
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{
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readNetworkStats();
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}
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void NetworkMonitorApplet::setActiveInterface(const QString &interface)
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{
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// 校验接口是否存在于当前接口列表中，无效接口名直接忽略
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// 设计原因：传入不存在的接口名会被持久化到配置文件，且当前会话期间
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// getActiveRxBytes() 返回 0 导致速度恒为 0，用户困惑；
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// 虽然下次启动 readNetworkStats() 会清空回退，但当前会话不应接受无效值
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if (!m_interfaceList.contains(interface)) {
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return;
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}
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if (m_activeInterface != interface) {
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m_activeInterface = interface;
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m_firstUpdate = true;
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// 持久化到配置文件，下次启动自动加载用户选择的网卡
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// 设计原因：弹窗 chip 和设置窗口都调用此方法，统一持久化保证两处选择一致
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const QString configPath = QStandardPaths::writableLocation(QStandardPaths::ConfigLocation)
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+ QStringLiteral("/jnetapplet/settings.ini");
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QSettings settings(configPath, QSettings::IniFormat);
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settings.setValue(QStringLiteral("activeInterface"), m_activeInterface);
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settings.sync();
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emit activeInterfaceChanged();
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// 接口切换后通知 QML 趋势图切换显示新接口的历史数据
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emit speedHistoryChanged();
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// 接口切换后立即检测新接口的 IP 地址
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detectIpAddress();
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}
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}
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void NetworkMonitorApplet::readNetworkStats()
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{
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QFile file("/proc/net/dev");
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if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) {
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qDebug() << "Failed to open /proc/net/dev";
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return;
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}
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QTextStream stream(&file);
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QStringList lines = stream.readAll().split('\n', Qt::SkipEmptyParts);
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file.close();
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QMap<QString, NetworkInterface> newInterfaces;
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// 跳过前两行标题
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for (int i = 2; i < lines.size(); ++i) {
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QString line = lines[i].trimmed();
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if (line.isEmpty()) continue;
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// 格式: "interface: rx_bytes rx_packets rx_errors rx_dropped ... tx_bytes tx_packets tx_errors tx_dropped ..."
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QRegularExpression re("^([^:]+):\\s+(\\d+)\\s+(\\d+)\\s+(\\d+)\\s+(\\d+)\\s+\\d+\\s+\\d+\\s+\\d+\\s+\\d+\\s+(\\d+)\\s+(\\d+)\\s+(\\d+)\\s+(\\d+)");
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QRegularExpressionMatch match = re.match(line);
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if (match.hasMatch()) {
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NetworkInterface iface;
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iface.name = match.captured(1);
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iface.rxBytes = match.captured(2).toLongLong();
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iface.rxPackets = match.captured(3).toLongLong();
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iface.rxErrors = match.captured(4).toLongLong();
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iface.rxDropped = match.captured(5).toLongLong();
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iface.txBytes = match.captured(6).toLongLong();
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iface.txPackets = match.captured(7).toLongLong();
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iface.txErrors = match.captured(8).toLongLong();
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iface.txDropped = match.captured(9).toLongLong();
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// 过滤掉回环接口和虚拟接口
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if (iface.name != "lo" && !iface.name.startsWith("veth") &&
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!iface.name.startsWith("docker") && !iface.name.startsWith("br-")) {
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newInterfaces[iface.name] = iface;
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}
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}
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}
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// 检测接口变化
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if (newInterfaces.keys() != m_interfaces.keys()) {
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m_interfaceList = newInterfaces.keys();
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m_interfaces = newInterfaces;
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// 清理已消失接口的历史缓冲和基线数据，避免内存泄漏
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// 设计原因：USB 网卡、VPN 隧道等接口可能随时消失，其历史数据和基线不再需要
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const QStringList oldIfaces = m_speedHistory.keys();
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for (const QString &name : oldIfaces) {
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if (!newInterfaces.contains(name)) {
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m_speedHistory.remove(name);
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m_lastRxBytesByIface.remove(name);
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m_lastTxBytesByIface.remove(name);
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}
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}
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// 保存的接口已不在当前列表中（如 USB 网卡拔出），清空让自动选择接管
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if (!m_activeInterface.isEmpty() && !m_interfaceList.contains(m_activeInterface)) {
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m_activeInterface.clear();
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}
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// 自动选择活动接口
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if (m_activeInterface.isEmpty() && !m_interfaceList.isEmpty()) {
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// 优先选择物理网卡（wlp/wlan/enp/eth）中有流量的接口，
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// 避免选中 Meta/tun0 等虚拟代理接口作为默认显示
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for (const QString &name : m_interfaceList) {
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if (!isPhysicalInterface(name)) continue;
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const NetworkInterface &iface = m_interfaces[name];
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if (iface.rxBytes > 0 || iface.txBytes > 0) {
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m_activeInterface = name;
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break;
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}
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}
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// 其次选择任意有流量的接口（物理网卡都无流量时的兜底）
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if (m_activeInterface.isEmpty()) {
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for (const QString &name : m_interfaceList) {
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const NetworkInterface &iface = m_interfaces[name];
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if (iface.rxBytes > 0 || iface.txBytes > 0) {
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m_activeInterface = name;
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break;
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}
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}
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}
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// 最后选第一个（无任何流量时）
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if (m_activeInterface.isEmpty()) {
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m_activeInterface = m_interfaceList.first();
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}
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emit activeInterfaceChanged();
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}
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m_ready = !m_interfaceList.isEmpty();
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emit interfacesChanged();
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emit readyChanged();
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} else {
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m_interfaces = newInterfaces;
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}
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calculateSpeed();
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// 每次刷新都检测 IP，以应对 DHCP 续约等 IP 变更场景
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detectIpAddress();
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}
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void NetworkMonitorApplet::calculateSpeed()
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{
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// 当前采样时间戳（毫秒），用于按真实流逝时间计算速度
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const qint64 nowMs = QDateTime::currentMSecsSinceEpoch();
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const qint64 nowSec = QDateTime::currentSecsSinceEpoch();
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const double elapsedSec = (nowMs - m_lastTimestampMs) / 1000.0;
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m_lastTimestampMs = nowMs;
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// ---- 活动接口速度计算（用于任务栏显示和总量累加）----
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if (m_firstUpdate) {
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// 首次更新或接口切换后：仅记录基线，不计算速度
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m_firstUpdate = false;
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m_lastRxBytes = getActiveRxBytes();
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m_lastTxBytes = getActiveTxBytes();
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} else if (elapsedSec > 0 && !m_activeInterface.isEmpty()) {
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// 按真实流逝时间计算速度（字节/秒），避免定时器抖动失真
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const qint64 currentRxBytes = getActiveRxBytes();
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const qint64 currentTxBytes = getActiveTxBytes();
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// 计数器回绕/接口重置时差值可能为负，钳制为 0 避免显示负速度
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const qint64 rxDelta = currentRxBytes - m_lastRxBytes;
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const qint64 txDelta = currentTxBytes - m_lastTxBytes;
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const qint64 rxDeltaClamped = rxDelta > 0 ? rxDelta : 0;
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const qint64 txDeltaClamped = txDelta > 0 ? txDelta : 0;
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m_downloadSpeed = rxDeltaClamped / elapsedSec;
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m_uploadSpeed = txDeltaClamped / elapsedSec;
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// 累加会话总量：总量 = 本次会话期间所有活动接口的流量总和
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m_totalDownload += rxDeltaClamped;
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m_totalUpload += txDeltaClamped;
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m_lastRxBytes = currentRxBytes;
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m_lastTxBytes = currentTxBytes;
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}
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// ---- 为所有接口采集速度历史（非仅活动接口）----
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// 设计原因：原仅采集活动接口，切换到非活动接口时趋势图为空需等待数分钟。
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// 改为遍历所有接口计算各自速度并追加历史，切换接口时趋势图立即有数据。
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if (elapsedSec > 0) {
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for (const QString &name : m_interfaceList) {
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if (!m_interfaces.contains(name)) continue;
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const NetworkInterface &iface = m_interfaces[name];
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// 接口尚未初始化基线（首次采集或运行中新增的接口），记录基线跳过本次
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if (!m_lastRxBytesByIface.contains(name)) {
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m_lastRxBytesByIface[name] = iface.rxBytes;
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m_lastTxBytesByIface[name] = iface.txBytes;
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continue;
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}
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const qint64 iRxDelta = iface.rxBytes - m_lastRxBytesByIface[name];
|
||
const qint64 iTxDelta = iface.txBytes - m_lastTxBytesByIface[name];
|
||
|
||
SpeedSample sample;
|
||
sample.timestamp = nowSec;
|
||
sample.downloadSpeed = (iRxDelta > 0 ? iRxDelta : 0) / elapsedSec;
|
||
sample.uploadSpeed = (iTxDelta > 0 ? iTxDelta : 0) / elapsedSec;
|
||
m_speedHistory[name].append(sample);
|
||
|
||
// 滑动窗口裁剪：超过 300 点时丢弃最旧的
|
||
QVector<SpeedSample> &samples = m_speedHistory[name];
|
||
while (samples.size() > MAX_HISTORY_SAMPLES) {
|
||
samples.removeFirst();
|
||
}
|
||
|
||
m_lastRxBytesByIface[name] = iface.rxBytes;
|
||
m_lastTxBytesByIface[name] = iface.txBytes;
|
||
}
|
||
emit speedHistoryChanged();
|
||
}
|
||
|
||
emit speedChanged();
|
||
emit totalChanged();
|
||
}
|
||
|
||
void NetworkMonitorApplet::detectInterfaces()
|
||
{
|
||
QDir sysClass("/sys/class/net");
|
||
if (!sysClass.exists()) return;
|
||
|
||
QStringList entries = sysClass.entryList(QDir::Dirs | QDir::NoDotAndDotDot);
|
||
m_interfaceList.clear();
|
||
|
||
for (const QString &entry : entries) {
|
||
// 过滤回环接口和虚拟接口，与 readNetworkStats() 保持一致
|
||
// 设计原因：原仅过滤 lo，docker/veth/br- 接口会短暂出现在列表中，
|
||
// 随后被 readNetworkStats() 覆盖，造成 UI 闪烁
|
||
if (entry != "lo" && !entry.startsWith("veth") &&
|
||
!entry.startsWith("docker") && !entry.startsWith("br-")) {
|
||
m_interfaceList << entry;
|
||
}
|
||
}
|
||
|
||
m_ready = !m_interfaceList.isEmpty();
|
||
emit interfacesChanged();
|
||
emit readyChanged();
|
||
}
|
||
|
||
qint64 NetworkMonitorApplet::getActiveRxBytes() const
|
||
{
|
||
if (m_activeInterface.isEmpty() || !m_interfaces.contains(m_activeInterface)) {
|
||
return 0;
|
||
}
|
||
return m_interfaces[m_activeInterface].rxBytes;
|
||
}
|
||
|
||
qint64 NetworkMonitorApplet::getActiveTxBytes() const
|
||
{
|
||
if (m_activeInterface.isEmpty() || !m_interfaces.contains(m_activeInterface)) {
|
||
return 0;
|
||
}
|
||
return m_interfaces[m_activeInterface].txBytes;
|
||
}
|
||
|
||
// 检测活动接口的 IPv4 与 IPv6 地址
|
||
// IPv4：跳过 loopback，取第一个
|
||
// IPv6：跳过 loopback 和 link-local (fe80::)，取第一个全球地址
|
||
// 任一地址变化时分别 emit 对应信号通知 QML 更新
|
||
// 设计原因：DHCP 续约、网络切换、IPv6 SLAAC 等场景下地址可能变化，需持续检测
|
||
void NetworkMonitorApplet::detectIpAddress()
|
||
{
|
||
QString newIp;
|
||
QString newIpv6;
|
||
if (!m_activeInterface.isEmpty()) {
|
||
QNetworkInterface iface = QNetworkInterface::interfaceFromName(m_activeInterface);
|
||
for (const QNetworkAddressEntry &entry : iface.addressEntries()) {
|
||
// IPv4：跳过 loopback，取第一个
|
||
if (entry.ip().protocol() == QAbstractSocket::IPv4Protocol
|
||
&& !entry.ip().isLoopback()
|
||
&& newIp.isEmpty()) {
|
||
newIp = entry.ip().toString();
|
||
}
|
||
// IPv6：跳过 loopback 和 link-local (fe80::)，取第一个全球地址
|
||
if (entry.ip().protocol() == QAbstractSocket::IPv6Protocol
|
||
&& !entry.ip().isLoopback()
|
||
&& !entry.ip().isLinkLocal()
|
||
&& newIpv6.isEmpty()) {
|
||
newIpv6 = entry.ip().toString();
|
||
}
|
||
}
|
||
}
|
||
if (m_ipAddress != newIp) {
|
||
m_ipAddress = newIp;
|
||
emit ipAddressChanged();
|
||
}
|
||
if (m_ipv6Address != newIpv6) {
|
||
m_ipv6Address = newIpv6;
|
||
emit ipv6AddressChanged();
|
||
}
|
||
}
|
||
|
||
// 判断是否为物理网卡
|
||
// 物理网卡前缀：无线 wlp/wlan/wifi，有线 enp/eth
|
||
// 虚拟接口（Meta/tun/tap/docker/veth/br-）返回 false，
|
||
// 用于自动选择时优先真实网卡而非代理 TUN 接口
|
||
bool NetworkMonitorApplet::isPhysicalInterface(const QString &name) const
|
||
{
|
||
return name.startsWith("wlp") || name.startsWith("wlan")
|
||
|| name.startsWith("enp") || name.startsWith("eth");
|
||
}
|
||
|
||
D_APPLET_CLASS(NetworkMonitorApplet)
|
||
|
||
DS_END_NAMESPACE
|
||
|
||
#include "networkmonitorapplet.moc" |