centralize and fixup example sources install targets
This follows suit with aeb036e in qtbase. Change-Id: Ie8580d0a1f38ab9858b0e44c9f99bdc552a1752a Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com> Reviewed-by: hjk <qthjk@ovi.com>
This commit is contained in:
Joerg Bornemann
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The Qt Project
The Qt Project
parent
90c8ba233b
commit
6b4994c265
@@ -0,0 +1,250 @@
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/****************************************************************************
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**
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** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of the Qt Mobility Components.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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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 Digia. For licensing terms and
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** conditions see http://qt.digia.com/licensing. For further information
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** use the contact form at http://qt.digia.com/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Digia gives you certain additional
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** rights. These rights are described in the Digia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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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 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "frequencymonitor.h"
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#include <QtCore/QDebug>
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#include <QtCore/QElapsedTimer>
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#include <QtCore/QString>
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#include <QtCore/QTime>
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#include <QtCore/QTimer>
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//#define VERBOSE_TRACE
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inline QDebug qtTrace() { return qDebug() << "[frequencymonitor]"; }
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#ifdef VERBOSE_TRACE
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inline QDebug qtVerboseTrace() { return qtTrace(); }
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#else
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inline QNoDebug qtVerboseTrace() { return QNoDebug(); }
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#endif
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static const int DefaultSamplingInterval = 100;
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static const int DefaultTraceInterval = 0;
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class FrequencyMonitorPrivate : public QObject
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{
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Q_OBJECT
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public:
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FrequencyMonitorPrivate(FrequencyMonitor *parent);
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void calculateInstantaneousFrequency();
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private slots:
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void calculateAverageFrequency();
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void stalled();
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public:
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FrequencyMonitor *const q_ptr;
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QString m_label;
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bool m_active;
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qreal m_instantaneousFrequency;
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QElapsedTimer m_instantaneousElapsed;
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QTimer *m_averageTimer;
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QElapsedTimer m_averageElapsed;
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int m_count;
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qreal m_averageFrequency;
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QTimer *m_traceTimer;
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QTimer *m_stalledTimer;
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};
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FrequencyMonitorPrivate::FrequencyMonitorPrivate(FrequencyMonitor *parent)
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: QObject(parent)
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, q_ptr(parent)
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, m_active(false)
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, m_instantaneousFrequency(0)
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, m_averageTimer(new QTimer(this))
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, m_count(0)
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, m_averageFrequency(0)
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, m_traceTimer(new QTimer(this))
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, m_stalledTimer(new QTimer(this))
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{
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m_instantaneousElapsed.start();
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connect(m_averageTimer, SIGNAL(timeout()),
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this, SLOT(calculateAverageFrequency()));
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if (DefaultSamplingInterval)
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m_averageTimer->start(DefaultSamplingInterval);
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m_averageElapsed.start();
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connect(m_traceTimer, SIGNAL(timeout()),
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q_ptr, SLOT(trace()));
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if (DefaultTraceInterval)
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m_traceTimer->start(DefaultTraceInterval);
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m_stalledTimer->setSingleShot(true);
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connect(m_stalledTimer, SIGNAL(timeout()),
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this, SLOT(stalled()));
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}
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void FrequencyMonitorPrivate::calculateInstantaneousFrequency()
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{
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const qint64 ms = m_instantaneousElapsed.restart();
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m_instantaneousFrequency = ms ? qreal(1000) / ms : 0;
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m_stalledTimer->start(3 * ms);
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if (m_instantaneousFrequency)
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q_ptr->setActive(true);
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q_ptr->emit instantaneousFrequencyChanged(m_instantaneousFrequency);
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q_ptr->emit frequencyChanged();
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}
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void FrequencyMonitorPrivate::calculateAverageFrequency()
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{
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const qint64 ms = m_averageElapsed.restart();
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m_averageFrequency = qreal(m_count * 1000) / ms;
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q_ptr->emit averageFrequencyChanged(m_averageFrequency);
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q_ptr->emit frequencyChanged();
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m_count = 0;
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}
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void FrequencyMonitorPrivate::stalled()
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{
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if (m_instantaneousFrequency) {
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qtVerboseTrace() << "FrequencyMonitor::stalled";
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m_instantaneousFrequency = 0;
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q_ptr->emit instantaneousFrequencyChanged(m_instantaneousFrequency);
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q_ptr->emit frequencyChanged();
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}
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}
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FrequencyMonitor::FrequencyMonitor(QObject *parent)
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: QObject(parent)
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, d_ptr(0)
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{
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d_ptr = new FrequencyMonitorPrivate(this);
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qtTrace() << "FrequencyMonitor::FrequencyMonitor";
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}
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FrequencyMonitor::~FrequencyMonitor()
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{
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}
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const QString &FrequencyMonitor::label() const
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{
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return d_func()->m_label;
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}
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bool FrequencyMonitor::active() const
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{
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return d_func()->m_active;
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}
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int FrequencyMonitor::samplingInterval() const
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{
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return d_ptr->m_averageTimer->isActive() ? d_ptr->m_averageTimer->interval() : 0;
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}
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int FrequencyMonitor::traceInterval() const
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{
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return d_ptr->m_traceTimer->isActive() ? d_ptr->m_traceTimer->interval() : 0;
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}
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qreal FrequencyMonitor::instantaneousFrequency() const
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{
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return d_func()->m_instantaneousFrequency;
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}
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qreal FrequencyMonitor::averageFrequency() const
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{
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return d_func()->m_averageFrequency;
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}
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void FrequencyMonitor::notify()
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{
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Q_D(FrequencyMonitor);
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++(d->m_count);
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d->calculateInstantaneousFrequency();
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}
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void FrequencyMonitor::trace()
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{
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Q_D(FrequencyMonitor);
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const QString value = QString::fromLatin1("instant %1 average %2")
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.arg(d->m_instantaneousFrequency, 0, 'f', 2)
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.arg(d->m_averageFrequency, 0, 'f', 2);
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if (d->m_label.isEmpty())
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qtTrace() << "FrequencyMonitor::trace" << value;
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else
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qtTrace() << "FrequencyMonitor::trace" << "label" << d->m_label << value;
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}
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void FrequencyMonitor::setLabel(const QString &value)
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{
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Q_D(FrequencyMonitor);
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if (d->m_label != value) {
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d->m_label = value;
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emit labelChanged(d->m_label);
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}
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}
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void FrequencyMonitor::setActive(bool value)
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{
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Q_D(FrequencyMonitor);
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if (d->m_active != value) {
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d->m_active = value;
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emit activeChanged(d->m_active);
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}
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}
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void FrequencyMonitor::setSamplingInterval(int value)
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{
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Q_D(FrequencyMonitor);
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if (samplingInterval() != value) {
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if (value) {
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d->m_averageTimer->setInterval(value);
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d->m_averageTimer->start();
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} else {
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d->m_averageTimer->stop();
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}
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emit samplingIntervalChanged(value);
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}
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}
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void FrequencyMonitor::setTraceInterval(int value)
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{
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Q_D(FrequencyMonitor);
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if (traceInterval() != value) {
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if (value) {
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d->m_traceTimer->setInterval(value);
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d->m_traceTimer->start();
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} else {
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d->m_traceTimer->stop();
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}
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emit traceIntervalChanged(value);
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}
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}
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#include "frequencymonitor.moc"
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