54 lines
1.9 KiB
C++
54 lines
1.9 KiB
C++
#ifndef QCORE_H
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#define QCORE_H
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#include <QThread>
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#include <QEventLoop>
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#include <QTimer>
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#define ToStr QString::number
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inline QString toStr(int num, int base=10) {return QString::number(num, base);}
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inline QString toStr(uint num, int base=10) {return QString::number(num, base);}
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inline QString toStr(long num, int base=10) {return QString::number(num, base);}
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inline QString toStr(ulong num, int base=10) {return QString::number(num, base);}
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inline QString toStr(qlonglong num, int base=10) {return QString::number(num, base);}
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inline QString toStr(qulonglong num, int base=10) {return QString::number(num, base);}
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inline QString toStr(double num, char format='g', int precision=6) {return QString::number(num, format, precision);}
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inline QString gUrlSuffix(const QString &url, int size, bool withDot = false) {
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auto ss = url.lastIndexOf('/')+1;
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if(ss==url.size()) return QString();
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ss++;
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auto ee = url.indexOf('?', ss);
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if(ee==-1) ee = url.size();
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int end = ee-size-1;
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if(end<ss) end = ss;
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for(int i=ee-1; i>=end; --i) if(url[i]=='.') return withDot ? url.mid(i, ee-i) : url.mid(i+1, ee-i-1);
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return QString();
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}
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inline QString byteSizeStr(double size) {
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const char *units[]{"B", "KB", "MB", "GB", "TB", "PB", "EB"};
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auto i = 0;
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for(; size >= 1024 && i < 7; i++) size /= 1024;
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return (size > 99 ? QString::number(size, 'f', 0) : QString::number(size, 'g', 3))+" "+units[i];
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}
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inline void wait(int msec, QEventLoop::ProcessEventsFlags flags = QEventLoop::AllEvents) {
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QTimer timer;
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timer.setSingleShot(true);
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QEventLoop loop;
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QObject::connect(&timer, &QTimer::timeout, &loop, &QEventLoop::quit);
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timer.start(msec);
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loop.exec(flags);
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}
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template <typename Func>
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inline QThread *ThreadStart(Func &&f) {
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QThread* thread = QThread::create(f);
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QObject::connect(thread, &QThread::finished, thread, &QThread::deleteLater);
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thread->start();
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return thread;
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}
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#endif
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