forked from qt-creator/qt-creator
a56ce4e450
Use the CMake-based qml API to create the "QtCreator.Tracing" module. This uses qt_add_qml_module, which was introduced with Qt 6.2. For Qt 6.1 and below, everything compiles and runs like before this change. Change-Id: I4d63f9f724d0628cfaab9d1164c0d575f15d15aa Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
100 lines
3.6 KiB
C++
100 lines
3.6 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of Qt Creator.
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**
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3 as published by the Free Software
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** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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**
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****************************************************************************/
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#include "timelineformattime.h"
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#include <QtQml>
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namespace Timeline {
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QString formatTime(qint64 timestamp, qint64 reference)
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{
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static const char *decimalUnits[] = {" ns", " \xb5s", " ms", " s"};
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static const double second = 1e9;
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static const double minute = 60;
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static const double hour = 60;
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int round = 1;
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qint64 barrier = 1;
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for (uint i = 0, end = sizeof(decimalUnits) / sizeof(char *); i < end; ++i) {
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const double dividend = barrier;
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if (reference < barrier) {
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round += 3;
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barrier *= 1000;
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} else {
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barrier *= 10;
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if (reference < barrier) {
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round += 2;
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barrier *= 100;
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} else {
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barrier *= 10;
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if (reference < barrier)
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round += 1;
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barrier *= 10;
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}
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}
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if (timestamp < barrier) {
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return QString::number(timestamp / dividend, 'g', qMax(round, 3))
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+ QString::fromLatin1(decimalUnits[i]);
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}
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}
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double seconds = timestamp / second;
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if (seconds < minute) {
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return QString::number(seconds, 'g', qMax(round, 3)) + " s";
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} else {
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int minutes = seconds / minute;
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seconds -= minutes * minute;
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if (minutes < hour) {
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return QString::fromLatin1("%1m %2s").arg(QString::number(minutes),
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QString::number(seconds, 'g', round));
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} else {
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int hours = minutes / hour;
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minutes -= hours * hour;
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if (reference < barrier * minute) {
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return QString::fromLatin1("%1h %2m %3s").arg(QString::number(hours),
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QString::number(minutes),
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QString::number(seconds, 'g', round));
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} else {
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return QString::fromLatin1("%1h %2m").arg(QString::number(hours),
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QString::number(minutes));
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}
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}
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}
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}
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void TimeFormatter::setupTimeFormatter()
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{
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#if QT_VERSION < QT_VERSION_CHECK(6, 2, 0)
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static const int typeIndex = qmlRegisterSingletonType<TimeFormatter>(
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"QtCreator.Tracing", 1, 0, "TimeFormatter",
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[](QQmlEngine *, QJSEngine *){ return new TimeFormatter; });
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Q_UNUSED(typeIndex)
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#endif // Qt < 6.2
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}
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}
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