Qt通用方法及类库有哪些

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函数名

    //初始化数据库    static void initDb(const QString &dbName);    //初始化文件,不存在则拷贝    static void initFile(const QString &sourceName, const QString &targetName);    //新建目录    static void newDir(const QString &dirName);    //写入消息到额外的的消息日志文件    static void writeInfo(const QString &info, bool needWrite = false, const QString &filePath = "log");    static void writeError(const QString &info, bool needWrite = false, const QString &filePath = "log");    //设置无边框窗体    static void setFramelessForm(QWidget *widgetMain, QWidget *widgetTitle, QLabel *labIco, QPushButton *btnClose, bool tool = true);

函数体

void QUIHelper::initDb(const QString &dbName){    initFile(QString(":/%1.db").arg(appName()), dbName);}void QUIHelper::initFile(const QString &sourceName, const QString &targetName){    //判断文件是否存在,不存在则从资源文件复制出来    QFile file(targetName);    if (!file.exists() || file.size() == 0) {        file.remove();        QUIHelper::copyFile(sourceName, targetName);    }}void QUIHelper::newDir(const QString &dirName){    QString strDir = dirName;    //如果路径中包含斜杠字符则说明是绝对路径    //linux系统路径字符带有 /  windows系统 路径字符带有 :/    if (!strDir.startsWith("/") && !strDir.contains(":/")) {        strDir = QString("%1/%2").arg(QUIHelper::appPath()).arg(strDir);    }    QDir dir(strDir);    if (!dir.exists()) {        dir.mkpath(strDir);    }}void QUIHelper::writeInfo(const QString &info, bool needWrite, const QString &filePath){    if (!needWrite) {        return;    }    QString fileName = QString("%1/%2/%3_runinfo_%4.txt").arg(QUIHelper::appPath())                       .arg(filePath).arg(QUIHelper::appName()).arg(QDate::currentDate().toString("yyyyMM"));    QFile file(fileName);    file.open(QIODevice::WriteOnly | QIODevice::Append | QFile::Text);    QTextStream stream(&file);    stream << DATETIME << "  " << info << NEWLINE;    file.close();}void QUIHelper::writeError(const QString &info, bool needWrite, const QString &filePath){    if (!needWrite) {        return;    }    QString fileName = QString("%1/%2/%3_runerror_%4.txt").arg(QUIHelper::appPath())                       .arg(filePath).arg(QUIHelper::appName()).arg(QDate::currentDate().toString("yyyyMM"));    QFile file(fileName);    file.open(QIODevice::WriteOnly | QIODevice::Append | QFile::Text);    QTextStream stream(&file);    stream << DATETIME << "  " << info << NEWLINE;    file.close();}void QUIHelper::setFramelessForm(QWidget *widgetMain, QWidget *widgetTitle, QLabel *labIco, QPushButton *btnClose, bool tool){    labIco->setFixedWidth(TitleMinSize);    btnClose->setFixedWidth(TitleMinSize);    widgetTitle->setFixedHeight(TitleMinSize);    widgetTitle->setProperty("form", "title");    widgetMain->setProperty("form", true);    widgetMain->setProperty("canMove", true);    if (tool) {        widgetMain->setWindowFlags(Qt::Tool | Qt::WindowStaysOnTopHint | Qt::FramelessWindowHint | Qt::X11BypassWindowManagerHint);    } else {        widgetMain->setWindowFlags(Qt::WindowStaysOnTopHint | Qt::FramelessWindowHint | Qt::X11BypassWindowManagerHint);    }    IconHelper::Instance()->setIcon(labIco, QUIConfig::IconMain, QUIConfig::FontSize + 2);    IconHelper::Instance()->setIcon(btnClose, QUIConfig::IconClose, QUIConfig::FontSize);}

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