#include "qthelper.h" #include "qnetworkinterface.h" #include "qnetworkproxy.h" #define TIMEMS qPrintable(QTime::currentTime().toString("HH:mm:ss zzz")) QList QtHelper::getScreenRects(bool available) { QList rects; #if (QT_VERSION >= QT_VERSION_CHECK(5,0,0)) int screenCount = qApp->screens().count(); QList screens = qApp->screens(); for (int i = 0; i < screenCount; ++i) { QScreen *screen = screens.at(i); rects << (available ? screen->availableGeometry() : screen->geometry()); } #else int screenCount = qApp->desktop()->screenCount(); QDesktopWidget *desk = qApp->desktop(); for (int i = 0; i < screenCount; ++i) { rects << (available ? desk->availableGeometry(i) : desk->screenGeometry(i)); } #endif return rects; } int QtHelper::getScreenIndex() { //需要对多个屏幕进行处理 int screenIndex = 0; QList rects = getScreenRects(false); int count = rects.count(); for (int i = 0; i < count; ++i) { //找到当前鼠标所在屏幕 QPoint pos = QCursor::pos(); if (rects.at(i).contains(pos)) { screenIndex = i; break; } } return screenIndex; } QRect QtHelper::getScreenRect(bool available) { int screenIndex = getScreenIndex(); QList rects = getScreenRects(available); return rects.at(screenIndex); } qreal QtHelper::getScreenRatio(bool devicePixel) { qreal ratio = 1.0; int screenIndex = getScreenIndex(); #if (QT_VERSION >= QT_VERSION_CHECK(5,0,0)) QScreen *screen = qApp->screens().at(screenIndex); if (devicePixel) { //需要开启 AA_EnableHighDpiScaling 属性才能正常获取 ratio = screen->devicePixelRatio() * 100; } else { ratio = screen->logicalDotsPerInch(); } #else //Qt4不能动态识别缩放更改后的值 ratio = qApp->desktop()->screen(screenIndex)->logicalDpiX(); #endif return ratio / 96; } QRect QtHelper::checkCenterRect(QRect &rect, bool available) { QRect deskRect = QtHelper::getScreenRect(available); int formWidth = rect.width(); int formHeight = rect.height(); int deskWidth = deskRect.width(); int deskHeight = deskRect.height(); int formX = deskWidth / 2 - formWidth / 2 + deskRect.x(); int formY = deskHeight / 2 - formHeight / 2; rect = QRect(formX, formY, formWidth, formHeight); return deskRect; } int QtHelper::deskWidth() { return getScreenRect().width(); } int QtHelper::deskHeight() { return getScreenRect().height(); } QSize QtHelper::deskSize() { return getScreenRect().size(); } QWidget *QtHelper::centerBaseForm = 0; void QtHelper::setFormInCenter(QWidget *form) { int formWidth = form->width(); int formHeight = form->height(); //如果=0表示采用系统桌面屏幕为参照 QRect rect; if (centerBaseForm == 0) { rect = getScreenRect(); } else { rect = centerBaseForm->geometry(); } int deskWidth = rect.width(); int deskHeight = rect.height(); QPoint movePoint(deskWidth / 2 - formWidth / 2 + rect.x(), deskHeight / 2 - formHeight / 2 + rect.y()); form->move(movePoint); } void QtHelper::showForm(QWidget *form) { setFormInCenter(form); form->show(); //判断宽高是否超过了屏幕分辨率,超过了则最大化显示 //qDebug() << TIMEMS << form->size() << deskSize(); if (form->width() + 20 > deskWidth() || form->height() + 50 > deskHeight()) { QMetaObject::invokeMethod(form, "showMaximized", Qt::QueuedConnection); } } QString QtHelper::appName() { //没有必要每次都获取,只有当变量为空时才去获取一次 static QString name; if (name.isEmpty()) { name = qApp->applicationFilePath(); //下面的方法主要为了过滤安卓的路径 lib程序名_armeabi-v7a/lib程序名_arm64-v8a QStringList list = name.split("/"); name = list.at(list.count() - 1).split(".").at(0); name.replace("_armeabi-v7a", ""); name.replace("_arm64-v8a", ""); } return name; } QString QtHelper::appPath() { static QString path; if (path.isEmpty()) { #ifdef Q_OS_ANDROID //默认安卓根目录 path = "/storage/emulated/0"; //带上程序名称作为目录 前面加个0方便排序 path = path + "/0" + appName(); #else path = qApp->applicationDirPath(); #endif } return path; } void QtHelper::getCurrentInfo(char *argv[], QString &path, QString &name) { //必须用fromLocal8Bit保证中文路径正常 QString argv0 = QString::fromLocal8Bit(argv[0]); QFileInfo file(argv0); path = file.path(); name = file.baseName(); } QString QtHelper::getIniValue(const QString &fileName, const QString &key) { QString value; QFile file(fileName); if (file.open(QFile::ReadOnly | QFile::Text)) { while (!file.atEnd()) { QString line = file.readLine(); if (line.startsWith(key)) { line = line.replace("\n", ""); line = line.trimmed(); value = line.split("=").last(); break; } } } return value; } QString QtHelper::getIniValue(char *argv[], const QString &key, const QString &dir) { QString path, name; QtHelper::getCurrentInfo(argv, path, name); QString fileName = QString("%1/%2%3.ini").arg(path).arg(dir).arg(name); return getIniValue(fileName, key); } QStringList QtHelper::getLocalIPs() { static QStringList ips; if (ips.count() == 0) { #ifdef Q_OS_WASM ips << "127.0.0.1"; #else QList netInterfaces = QNetworkInterface::allInterfaces(); foreach (QNetworkInterface netInterface, netInterfaces) { //移除虚拟机和抓包工具的虚拟网卡 QString humanReadableName = netInterface.humanReadableName().toLower(); if (humanReadableName.startsWith("vmware network adapter") || humanReadableName.startsWith("npcap loopback adapter")) { continue; } //过滤当前网络接口 bool flag = (netInterface.flags() == (QNetworkInterface::IsUp | QNetworkInterface::IsRunning | QNetworkInterface::CanBroadcast | QNetworkInterface::CanMulticast)); if (!flag) { continue; } QList addrs = netInterface.addressEntries(); foreach (QNetworkAddressEntry addr, addrs) { //只取出IPV4的地址 if (addr.ip().protocol() != QAbstractSocket::IPv4Protocol) { continue; } QString ip4 = addr.ip().toString(); if (ip4 != "127.0.0.1") { ips << ip4; } } } #endif } return ips; } QList QtHelper::colors = QList(); QList QtHelper::getColorList() { //备用颜色集合 可以自行添加 if (colors.count() == 0) { colors << QColor(0, 176, 180) << QColor(0, 113, 193) << QColor(255, 192, 0); colors << QColor(72, 103, 149) << QColor(185, 87, 86) << QColor(0, 177, 125); colors << QColor(214, 77, 84) << QColor(71, 164, 233) << QColor(34, 163, 169); colors << QColor(59, 123, 156) << QColor(162, 121, 197) << QColor(72, 202, 245); colors << QColor(0, 150, 121) << QColor(111, 9, 176) << QColor(250, 170, 20); } return colors; } QStringList QtHelper::getColorNames() { QList colors = getColorList(); QStringList colorNames; foreach (QColor color, colors) { colorNames << color.name(); } return colorNames; } QColor QtHelper::getRandColor() { QList colors = getColorList(); int index = getRandValue(0, colors.count(), true); return colors.at(index); } void QtHelper::initRand() { //初始化随机数种子 QTime t = QTime::currentTime(); srand(t.msec() + t.second() * 1000); } float QtHelper::getRandFloat(float min, float max) { double diff = fabs(max - min); double value = (double)(rand() % 100) / 100; value = min + value * diff; return value; } double QtHelper::getRandValue(int min, int max, bool contansMin, bool contansMax) { int value; #if (QT_VERSION <= QT_VERSION_CHECK(5,10,0)) //通用公式 a是起始值,n是整数的范围 //int value = a + rand() % n; if (contansMin) { if (contansMax) { value = min + 0 + (rand() % (max - min + 1)); } else { value = min + 0 + (rand() % (max - min + 0)); } } else { if (contansMax) { value = min + 1 + (rand() % (max - min + 0)); } else { value = min + 1 + (rand() % (max - min - 1)); } } #else if (contansMin) { if (contansMax) { value = QRandomGenerator::global()->bounded(min + 0, max + 1); } else { value = QRandomGenerator::global()->bounded(min + 0, max + 0); } } else { if (contansMax) { value = QRandomGenerator::global()->bounded(min + 1, max + 1); } else { value = QRandomGenerator::global()->bounded(min + 1, max + 0); } } #endif return value; } QStringList QtHelper::getRandPoint(int count, float mainLng, float mainLat, float dotLng, float dotLat) { //随机生成点坐标 QStringList points; for (int i = 0; i < count; ++i) { //0.00881415 0.000442928 #if (QT_VERSION >= QT_VERSION_CHECK(5,10,0)) float lngx = QRandomGenerator::global()->bounded(dotLng); float latx = QRandomGenerator::global()->bounded(dotLat); #else float lngx = getRandFloat(dotLng / 10, dotLng); float latx = getRandFloat(dotLat / 10, dotLat); #endif //需要先用精度转换成字符串 QString lng2 = QString::number(mainLng + lngx, 'f', 8); QString lat2 = QString::number(mainLat + latx, 'f', 8); QString point = QString("%1,%2").arg(lng2).arg(lat2); points << point; } return points; } int QtHelper::getRangeValue(int oldMin, int oldMax, int oldValue, int newMin, int newMax) { return (((oldValue - oldMin) * (newMax - newMin)) / (oldMax - oldMin)) + newMin; } QString QtHelper::getUuid() { QString uuid = QUuid::createUuid().toString(); uuid.replace("{", ""); uuid.replace("}", ""); return uuid; } void QtHelper::checkPath(const QString &dirName) { //相对路径需要补全完整路径 QString path = dirName; if (path.startsWith("./")) { path.replace(".", ""); path = QtHelper::appPath() + path; } else if (!path.startsWith("/") && !path.contains(":/")) { path = QtHelper::appPath() + "/" + path; } //目录不存在则新建 QDir dir(path); if (!dir.exists()) { dir.mkpath(path); } } void QtHelper::sleep(int msec, bool exec) { if (msec <= 0) { return; } if (exec) { #if (QT_VERSION >= QT_VERSION_CHECK(5,0,0)) //阻塞方式延时(如果在主线程会卡住主界面) QThread::msleep(msec); #else //非阻塞方式延时(不会卡住主界面/据说可能有问题) QTime endTime = QTime::currentTime().addMSecs(msec); while (QTime::currentTime() < endTime) { QCoreApplication::processEvents(QEventLoop::AllEvents, 100); } #endif } else { //非阻塞方式延时(现在很多人推荐的方法) QEventLoop loop; QTimer::singleShot(msec, &loop, SLOT(quit())); loop.exec(); } } void QtHelper::checkRun() { #ifdef Q_OS_WIN //延时1秒钟,等待程序释放完毕 QtHelper::sleep(1000); //创建共享内存,判断是否已经运行程序 static QSharedMemory mem(QtHelper::appName()); if (!mem.create(1)) { QtHelper::showMessageBoxError("程序已运行, 软件将自动关闭!", 5, true); exit(0); } #endif } void QtHelper::setStyle() { //打印下所有内置风格的名字 qDebug() << TIMEMS << "QStyleFactory::keys" << QStyleFactory::keys(); //设置内置风格 #if (QT_VERSION >= QT_VERSION_CHECK(5,0,0)) qApp->setStyle("Fusion"); #else qApp->setStyle("Cleanlooks"); #endif //设置指定颜色 QPalette palette; palette.setBrush(QPalette::Window, QColor("#F0F0F0")); qApp->setPalette(palette); } QFont QtHelper::addFont(const QString &fontFile, const QString &fontName) { //判断图形字体是否存在,不存在则加入 QFontDatabase fontDb; if (!fontDb.families().contains(fontName)) { int fontId = fontDb.addApplicationFont(fontFile); QStringList listName = fontDb.applicationFontFamilies(fontId); if (listName.count() == 0) { qDebug() << QString("load %1 error").arg(fontName); } } //再次判断是否包含字体名称防止加载失败 QFont font; if (fontDb.families().contains(fontName)) { font = QFont(fontName); #if (QT_VERSION >= QT_VERSION_CHECK(4,8,0)) font.setHintingPreference(QFont::PreferNoHinting); #endif } return font; } void QtHelper::setFont(int fontSize) { //安卓套件在有些手机上默认字体不好看需要主动设置字体 //网页套件需要主动加载中文字体才能正常显示中文 #if (defined Q_OS_ANDROID) || (defined Q_OS_WASM) QString fontFile = ":/font/DroidSansFallback.ttf"; QString fontName = "Droid Sans Fallback"; qApp->setFont(addFont(fontFile, fontName)); return; #endif #ifdef __arm__ fontSize = 25; #endif QFont font; font.setFamily("MicroSoft Yahei"); font.setPixelSize(fontSize); qApp->setFont(font); } void QtHelper::setCode(bool utf8) { #if (QT_VERSION >= QT_VERSION_CHECK(5,0,0)) //如果想要控制台打印信息中文正常就注释掉这个设置 if (utf8) { QTextCodec *codec = QTextCodec::codecForName("utf-8"); QTextCodec::setCodecForLocale(codec); } #else #if _MSC_VER QTextCodec *codec = QTextCodec::codecForName("gbk"); #else QTextCodec *codec = QTextCodec::codecForName("utf-8"); #endif QTextCodec::setCodecForLocale(codec); QTextCodec::setCodecForCStrings(codec); QTextCodec::setCodecForTr(codec); #endif } void QtHelper::setTranslator(const QString &qmFile) { //过滤下不存在的就不用设置了 if (!QFile(qmFile).exists()) { return; } QTranslator *translator = new QTranslator(qApp); if (translator->load(qmFile)) { qApp->installTranslator(translator); } } #ifdef Q_OS_ANDROID #if (QT_VERSION < QT_VERSION_CHECK(6,0,0)) #include #else //Qt6中将相关类移到了core模块而且名字变了 #include #endif #endif bool QtHelper::checkPermission(const QString &permission) { #ifdef Q_OS_ANDROID #if (QT_VERSION >= QT_VERSION_CHECK(5,10,0) && QT_VERSION < QT_VERSION_CHECK(6,0,0)) QtAndroid::PermissionResult result = QtAndroid::checkPermission(permission); if (result == QtAndroid::PermissionResult::Denied) { QtAndroid::requestPermissionsSync(QStringList() << permission); result = QtAndroid::checkPermission(permission); if (result == QtAndroid::PermissionResult::Denied) { return false; } } #else QFuture result = QtAndroidPrivate::requestPermission(permission); if (result.resultAt(0) == QtAndroidPrivate::PermissionResult::Denied) { return false; } #endif #endif return true; } void QtHelper::initAndroidPermission() { //可以把所有要动态申请的权限都写在这里 checkPermission("android.permission.CALL_PHONE"); checkPermission("android.permission.SEND_SMS"); checkPermission("android.permission.CAMERA"); checkPermission("android.permission.READ_EXTERNAL_STORAGE"); checkPermission("android.permission.WRITE_EXTERNAL_STORAGE"); checkPermission("android.permission.ACCESS_COARSE_LOCATION"); checkPermission("android.permission.BLUETOOTH"); checkPermission("android.permission.BLUETOOTH_SCAN"); checkPermission("android.permission.BLUETOOTH_CONNECT"); checkPermission("android.permission.BLUETOOTH_ADVERTISE"); } void QtHelper::initAll(bool utf8, bool style, int fontSize) { //初始化安卓权限 QtHelper::initAndroidPermission(); //初始化随机数种子 QtHelper::initRand(); //设置编码 QtHelper::setCode(utf8); //设置字体 QtHelper::setFont(fontSize); //设置样式风格 if (style) { QtHelper::setStyle(); } //设置翻译文件支持多个 QtHelper::setTranslator(":/qm/widgets.qm"); QtHelper::setTranslator(":/qm/qt_zh_CN.qm"); QtHelper::setTranslator(":/qm/designer_zh_CN.qm"); //设置不使用本地系统环境代理配置 QNetworkProxyFactory::setUseSystemConfiguration(false); //设置当前目录为程序可执行文件所在目录 QDir::setCurrent(QtHelper::appPath()); //Qt4中默认没有程序名称需要主动设置 #if (QT_VERSION < QT_VERSION_CHECK(5,0,0)) qApp->setApplicationName(QtHelper::appName()); #endif } void QtHelper::initMain(bool desktopSettingsAware, bool use96Dpi, bool logCritical) { #ifdef Q_OS_WIN //Qt6.5开始默认是ffmpeg后端但是不成熟需要换成系统的 qputenv("QT_MEDIA_BACKEND", "windows"); #endif #if (QT_VERSION >= QT_VERSION_CHECK(5,0,0)) //设置是否应用操作系统设置比如字体 QApplication::setDesktopSettingsAware(desktopSettingsAware); #endif bool highDpi = !use96Dpi; #ifdef Q_OS_ANDROID highDpi = true; #endif #if (QT_VERSION >= QT_VERSION_CHECK(5,6,0)) //开启高分屏缩放支持 if (highDpi) { QApplication::setAttribute(Qt::AA_EnableHighDpiScaling); } #endif #ifdef Q_OS_WIN if (use96Dpi) { //Qt6中AA_Use96Dpi没效果必须下面方式设置强制指定缩放DPI qputenv("QT_FONT_DPI", "96"); #if (QT_VERSION >= QT_VERSION_CHECK(5,0,0)) //不应用任何缩放 QApplication::setAttribute(Qt::AA_Use96Dpi); #endif } #endif #if (QT_VERSION >= QT_VERSION_CHECK(5,14,0)) //高分屏缩放策略 QApplication::setHighDpiScaleFactorRoundingPolicy(Qt::HighDpiScaleFactorRoundingPolicy::Floor); #endif #if (QT_VERSION >= QT_VERSION_CHECK(5,0,0)) //下面这行表示不打印Qt内部类的警告提示信息 if (!logCritical) { QLoggingCategory::setFilterRules("*.critical=false\n*.warning=false"); } #endif #if (QT_VERSION >= QT_VERSION_CHECK(5,4,0)) //设置opengl共享上下文 QApplication::setAttribute(Qt::AA_ShareOpenGLContexts); #endif } void QtHelper::initOpenGL(quint8 type, bool checkCardEnable, bool checkVirtualSystem) { #if (QT_VERSION >= QT_VERSION_CHECK(5,4,0)) //设置opengl模式 AA_UseDesktopOpenGL(默认) AA_UseOpenGLES AA_UseSoftwareOpenGL //在一些很旧的设备上或者对opengl支持很低的设备上需要使用AA_UseOpenGLES表示禁用硬件加速 //如果开启的是AA_UseOpenGLES则无法使用硬件加速比如ffmpeg的dxva2 if (type == 1) { QApplication::setAttribute(Qt::AA_UseDesktopOpenGL); } else if (type == 2) { QApplication::setAttribute(Qt::AA_UseOpenGLES); } else if (type == 3) { QApplication::setAttribute(Qt::AA_UseSoftwareOpenGL); } //检测显卡是否被禁用 if (checkCardEnable && !isVideoCardEnable()) { QApplication::setAttribute(Qt::AA_UseOpenGLES); } //检测是否是虚拟机系统 if (checkVirtualSystem && isVirtualSystem()) { QApplication::setAttribute(Qt::AA_UseOpenGLES); } #endif } QString QtHelper::doCmd(const QString &program, const QStringList &arguments, int timeout) { QString result; #ifndef Q_OS_WASM QProcess p; p.start(program, arguments); p.waitForFinished(timeout); result = QString::fromLocal8Bit(p.readAllStandardOutput()); result.replace("\r", ""); result.replace("\n", ""); result = result.simplified(); result = result.trimmed(); #endif return result; } bool QtHelper::isVideoCardEnable() { QString result; bool videoCardEnable = true; #if defined(Q_OS_WIN) QStringList args; //wmic path win32_VideoController get name,Status args << "path" << "win32_VideoController" << "get" << "name,Status"; result = doCmd("wmic", args); #endif //Name Status Intel(R) UHD Graphics 630 OK //Name Status Intel(R) UHD Graphics 630 Error if (result.contains("Error")) { videoCardEnable = false; } return videoCardEnable; } bool QtHelper::isVirtualSystem() { QString result; bool virtualSystem = false; #if defined(Q_OS_WIN) QStringList args; //wmic computersystem get Model args << "computersystem" << "get" << "Model"; result = doCmd("wmic", args); #elif defined(Q_OS_LINUX) QStringList args; //还有个命令需要root权限运行 dmidecode -s system-product-name 执行结果和win一样 result = doCmd("lscpu", args); #endif //Model MS-7C00 //Model VMWare Virtual Platform //Model VirtualBox Virtual Platform //Model Alibaba Cloud ECS if (result.contains("VMware") || result.contains("VirtualBox") || result.contains("Alibaba")) { virtualSystem = true; } return virtualSystem; } QVector QtHelper::msgTypes = QVector() << 0 << 1 << 2 << 3 << 4; QVector QtHelper::msgKeys = QVector() << QString::fromUtf8("发送") << QString::fromUtf8("接收") << QString::fromUtf8("解析") << QString::fromUtf8("错误") << QString::fromUtf8("提示"); QVector QtHelper::msgColors = QVector() << QColor("#3BA372") << QColor("#EE6668") << QColor("#9861B4") << QColor("#FA8359") << QColor("#22A3A9"); QString QtHelper::appendMsg(QTextEdit *textEdit, int type, const QString &data, int maxCount, int ¤tCount, bool clear, bool pause) { if (clear) { textEdit->clear(); currentCount = 0; return QString(); } if (pause) { return QString(); } if (currentCount >= maxCount) { textEdit->clear(); currentCount = 0; } //不同类型不同颜色显示 QString strType; int index = msgTypes.indexOf(type); if (index >= 0) { strType = msgKeys.at(index); textEdit->setTextColor(msgColors.at(index)); } //过滤回车换行符 QString strData = data; strData.replace("\r", ""); strData.replace("\n", ""); strData = QString("时间[%1] %2: %3").arg(TIMEMS).arg(strType).arg(strData); textEdit->append(strData); currentCount++; return strData; } void QtHelper::setFramelessForm(QWidget *widgetMain, bool tool, bool top, bool menu) { widgetMain->setProperty("form", true); widgetMain->setProperty("canMove", true); //根据设定逐个追加属性 #ifdef __arm__ widgetMain->setWindowFlags(Qt::FramelessWindowHint | Qt::X11BypassWindowManagerHint); #else widgetMain->setWindowFlags(Qt::FramelessWindowHint); #endif if (tool) { widgetMain->setWindowFlags(widgetMain->windowFlags() | Qt::Tool); } if (top) { widgetMain->setWindowFlags(widgetMain->windowFlags() | Qt::WindowStaysOnTopHint); } if (menu) { //如果是其他系统比如neokylin会产生系统边框 #ifdef Q_OS_WIN widgetMain->setWindowFlags(widgetMain->windowFlags() | Qt::WindowSystemMenuHint | Qt::WindowMinMaxButtonsHint); #endif } } int QtHelper::showMessageBox(const QString &text, int type, int closeSec, bool exec) { int result = 0; if (type == 0) { showMessageBoxInfo(text, closeSec, exec); } else if (type == 1) { showMessageBoxError(text, closeSec, exec); } else if (type == 2) { result = showMessageBoxQuestion(text); } return result; } void QtHelper::showMessageBoxInfo(const QString &text, int closeSec, bool exec) { QMessageBox box(QMessageBox::Information, "提示", text); box.setStandardButtons(QMessageBox::Yes); box.setButtonText(QMessageBox::Yes, QString("确 定")); box.exec(); //QMessageBox::information(0, "提示", info, QMessageBox::Yes); } void QtHelper::showMessageBoxError(const QString &text, int closeSec, bool exec) { QMessageBox box(QMessageBox::Critical, "错误", text); box.setStandardButtons(QMessageBox::Yes); box.setButtonText(QMessageBox::Yes, QString("确 定")); box.exec(); //QMessageBox::critical(0, "错误", info, QMessageBox::Yes); } int QtHelper::showMessageBoxQuestion(const QString &text) { QMessageBox box(QMessageBox::Question, "询问", text); box.setStandardButtons(QMessageBox::Yes | QMessageBox::No); box.setButtonText(QMessageBox::Yes, QString("确 定")); box.setButtonText(QMessageBox::No, QString("取 消")); return box.exec(); //return QMessageBox::question(0, "询问", info, QMessageBox::Yes | QMessageBox::No); } void QtHelper::initDialog(QFileDialog *dialog, const QString &title, const QString &acceptName, const QString &dirName, bool native, int width, int height) { //设置标题 dialog->setWindowTitle(title); //设置标签文本 dialog->setLabelText(QFileDialog::Accept, acceptName); dialog->setLabelText(QFileDialog::Reject, "取消(&C)"); dialog->setLabelText(QFileDialog::LookIn, "查看"); dialog->setLabelText(QFileDialog::FileName, "名称"); dialog->setLabelText(QFileDialog::FileType, "类型"); //设置默认显示目录 if (!dirName.isEmpty()) { dialog->setDirectory(dirName); } //设置对话框宽高 if (width > 0 && height > 0) { #ifdef Q_OS_ANDROID bool horizontal = (QtHelper::deskWidth() > QtHelper::deskHeight()); if (horizontal) { width = QtHelper::deskWidth() / 2; height = QtHelper::deskHeight() - 50; } else { width = QtHelper::deskWidth() - 10; height = QtHelper::deskHeight() / 2; } #endif dialog->setFixedSize(width, height); } //设置是否采用本地对话框 dialog->setOption(QFileDialog::DontUseNativeDialog, !native); //设置只读可以取消右上角的新建按钮 //dialog->setReadOnly(true); } QString QtHelper::getDialogResult(QFileDialog *dialog) { QString result; if (dialog->exec() == QFileDialog::Accepted) { result = dialog->selectedFiles().first(); if (!result.contains(".")) { //自动补全拓展名 保存文件(*.txt *.exe) QString filter = dialog->selectedNameFilter(); if (filter.contains("*.")) { filter = filter.split("(").last(); filter = filter.mid(0, filter.length() - 1); //取出第一个作为拓展名 if (!filter.contains("*.*")) { filter = filter.split(" ").first(); result = result + filter.mid(1, filter.length()); } } } } return result; } QString QtHelper::getOpenFileName(const QString &filter, const QString &dirName, const QString &fileName, bool native, int width, int height) { QFileDialog dialog; initDialog(&dialog, "打开文件", "选择(&S)", dirName, native, width, height); //设置文件类型 if (!filter.isEmpty()) { dialog.setNameFilter(filter); } //设置默认文件名称 dialog.selectFile(fileName); return getDialogResult(&dialog); } QString QtHelper::getSaveFileName(const QString &filter, const QString &dirName, const QString &fileName, bool native, int width, int height) { QFileDialog dialog; initDialog(&dialog, "保存文件", "保存(&S)", dirName, native, width, height); //设置文件类型 if (!filter.isEmpty()) { dialog.setNameFilter(filter); } //设置默认文件名称 dialog.selectFile(fileName); //设置模态类型允许输入 dialog.setWindowModality(Qt::WindowModal); //设置置顶显示 dialog.setWindowFlags(dialog.windowFlags() | Qt::WindowStaysOnTopHint); return getDialogResult(&dialog); } QString QtHelper::getExistingDirectory(const QString &dirName, bool native, int width, int height) { QFileDialog dialog; initDialog(&dialog, "选择目录", "选择(&S)", dirName, native, width, height); dialog.setOption(QFileDialog::ReadOnly); //设置只显示目录 #if (QT_VERSION < QT_VERSION_CHECK(6,0,0)) dialog.setFileMode(QFileDialog::DirectoryOnly); #endif dialog.setOption(QFileDialog::ShowDirsOnly); return getDialogResult(&dialog); } QString QtHelper::getXorEncryptDecrypt(const QString &value, char key) { //矫正范围外的数据 if (key < 0 || key >= 127) { key = 127; } //大概从5.9版本输出的加密密码字符串前面会加上 @String 字符 QString result = value; if (result.startsWith("@String")) { result = result.mid(8, result.length() - 9); } for (int i = 0; i < result.length(); ++i) { result[i] = QChar(result.at(i).toLatin1() ^ key); } return result; } quint8 QtHelper::getOrCode(const QByteArray &data) { int len = data.length(); quint8 result = 0; for (int i = 0; i < len; ++i) { result ^= data.at(i); } return result; } quint8 QtHelper::getCheckCode(const QByteArray &data) { int len = data.length(); quint8 temp = 0; for (int i = 0; i < len; ++i) { temp += data.at(i); } return temp % 256; } void QtHelper::initTableView(QTableView *tableView, int rowHeight, bool headVisible, bool edit, bool stretchLast) { //设置弱属性用于应用qss特殊样式 tableView->setProperty("model", true); //取消自动换行 tableView->setWordWrap(false); //超出文本不显示省略号 tableView->setTextElideMode(Qt::ElideNone); //奇数偶数行颜色交替 tableView->setAlternatingRowColors(false); //垂直表头是否可见 tableView->verticalHeader()->setVisible(headVisible); //选中一行表头是否加粗 tableView->horizontalHeader()->setHighlightSections(false); //最后一行拉伸填充 tableView->horizontalHeader()->setStretchLastSection(stretchLast); //行标题最小宽度尺寸 tableView->horizontalHeader()->setMinimumSectionSize(0); //行标题最小高度,等同于和默认行高一致 tableView->horizontalHeader()->setFixedHeight(rowHeight); //默认行高 tableView->verticalHeader()->setDefaultSectionSize(rowHeight); //选中时一行整体选中 tableView->setSelectionBehavior(QAbstractItemView::SelectRows); //只允许选择单个 tableView->setSelectionMode(QAbstractItemView::SingleSelection); //表头不可单击 #if (QT_VERSION >= QT_VERSION_CHECK(5,0,0)) tableView->horizontalHeader()->setSectionsClickable(false); #else tableView->horizontalHeader()->setClickable(false); #endif //鼠标按下即进入编辑模式 if (edit) { tableView->setEditTriggers(QAbstractItemView::CurrentChanged | QAbstractItemView::DoubleClicked); } else { tableView->setEditTriggers(QAbstractItemView::NoEditTriggers); } } void QtHelper::openFile(const QString &fileName, const QString &msg) { #ifdef __arm__ return; #endif //文件不存在则不用处理 if (!QFile(fileName).exists()) { return; } if (QtHelper::showMessageBoxQuestion(msg + "成功, 确定现在就打开吗?") == QMessageBox::Yes) { QString url = QString("file:///%1").arg(fileName); QDesktopServices::openUrl(QUrl(url, QUrl::TolerantMode)); } } bool QtHelper::checkIniFile(const QString &iniFile) { //如果配置文件大小为0,则以初始值继续运行,并生成配置文件 QFile file(iniFile); if (file.size() == 0) { return false; } //如果配置文件不完整,则以初始值继续运行,并生成配置文件 if (file.open(QFile::ReadOnly)) { bool ok = true; while (!file.atEnd()) { QString line = file.readLine(); line.replace("\r", ""); line.replace("\n", ""); QStringList list = line.split("="); if (list.count() == 2) { QString key = list.at(0); QString value = list.at(1); if (value.isEmpty()) { qDebug() << TIMEMS << "ini node no value" << key; ok = false; break; } } } if (!ok) { return false; } } else { return false; } return true; } QString QtHelper::cutString(const QString &text, int len, int left, int right, bool file, const QString &mid) { //如果指定了字符串分割则表示是文件名需要去掉拓展名 QString result = text; if (file && result.contains(".")) { int index = result.lastIndexOf("."); result = result.mid(0, index); } //最终字符串格式为 前缀字符...后缀字符 if (result.length() > len) { result = QString("%1%2%3").arg(result.left(left)).arg(mid).arg(result.right(right)); } return result; } QRect QtHelper::getCenterRect(const QSize &imageSize, const QRect &widgetRect, int borderWidth, int scaleMode) { QSize newSize = imageSize; QSize widgetSize = widgetRect.size() - QSize(borderWidth * 1, borderWidth * 1); if (scaleMode == 0) { if (newSize.width() > widgetSize.width() || newSize.height() > widgetSize.height()) { newSize.scale(widgetSize, Qt::KeepAspectRatio); } } else if (scaleMode == 1) { newSize.scale(widgetSize, Qt::KeepAspectRatio); } else { newSize = widgetSize; } int x = widgetRect.center().x() - newSize.width() / 2; int y = widgetRect.center().y() - newSize.height() / 2; //不是2的倍数需要偏移1像素 x += (x % 2 == 0 ? 1 : 0); y += (y % 2 == 0 ? 1 : 0); return QRect(x, y, newSize.width(), newSize.height()); } void QtHelper::getScaledImage(QImage &image, const QSize &widgetSize, int scaleMode, bool fast) { Qt::TransformationMode mode = fast ? Qt::FastTransformation : Qt::SmoothTransformation; if (scaleMode == 0) { if (image.width() > widgetSize.width() || image.height() > widgetSize.height()) { image = image.scaled(widgetSize, Qt::KeepAspectRatio, mode); } } else if (scaleMode == 1) { image = image.scaled(widgetSize, Qt::KeepAspectRatio, mode); } else { image = image.scaled(widgetSize, Qt::IgnoreAspectRatio, mode); } } QString QtHelper::getTimeString(qint64 time) { time = time / 1000; QString min = QString("%1").arg(time / 60, 2, 10, QChar('0')); QString sec = QString("%2").arg(time % 60, 2, 10, QChar('0')); return QString("%1:%2").arg(min).arg(sec); } QString QtHelper::getTimeString(QElapsedTimer timer) { return QString::number((float)timer.elapsed() / 1000, 'f', 3); } QString QtHelper::getSizeString(quint64 size) { float num = size; QStringList list; list << "KB" << "MB" << "GB" << "TB"; QString unit("bytes"); QStringListIterator i(list); while (num >= 1024.0 && i.hasNext()) { unit = i.next(); num /= 1024.0; } return QString("%1 %2").arg(QString::number(num, 'f', 2)).arg(unit); } //setSystemDateTime("2022", "07", "01", "12", "22", "55"); void QtHelper::setSystemDateTime(const QString &year, const QString &month, const QString &day, const QString &hour, const QString &min, const QString &sec) { #ifdef Q_OS_WIN QProcess p(0); //先设置日期 p.start("cmd"); p.waitForStarted(); p.write(QString("date %1-%2-%3\n").arg(year).arg(month).arg(day).toLatin1()); p.closeWriteChannel(); p.waitForFinished(1000); p.close(); //再设置时间 p.start("cmd"); p.waitForStarted(); p.write(QString("time %1:%2:%3.00\n").arg(hour).arg(min).arg(sec).toLatin1()); p.closeWriteChannel(); p.waitForFinished(1000); p.close(); #else QString cmd = QString("date %1%2%3%4%5.%6").arg(month).arg(day).arg(hour).arg(min).arg(year).arg(sec); //设置日期时间 system(cmd.toLatin1()); //硬件时钟同步 system("hwclock -w"); #endif } void QtHelper::runWithSystem(bool autoRun) { QtHelper::runWithSystem(qApp->applicationName(), qApp->applicationFilePath(), autoRun); } void QtHelper::runWithSystem(const QString &fileName, const QString &filePath, bool autoRun) { #ifdef Q_OS_WIN //要转换成本地文件路径(不启动则文件路径为空即可) QSettings reg("HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Run", QSettings::NativeFormat); reg.setValue(fileName, autoRun ? QDir::toNativeSeparators(filePath) : ""); #endif } void QtHelper::runBin(const QString &path, const QString &name) { #ifdef Q_OS_WIN QString cmd1 = "tasklist"; QString cmd2 = QString("%1/%2.exe").arg(path).arg(name); #else QString cmd1 = "ps -aux"; QString cmd2 = QString("%1/%2").arg(path).arg(name); #endif #ifndef Q_OS_WASM QProcess p; p.start(cmd1); if (p.waitForFinished()) { QString result = p.readAll(); if (result.contains(name)) { return; } } //加上引号可以兼容打开带空格的目录(Program Files) if (cmd2.contains(" ")) { cmd2 = "\"" + cmd2 + "\""; } //QProcess::execute(cmd2); QProcess::startDetached(cmd2); #endif }