qt-creator/src/plugins/qmlprofiler/qmlprofilertracefile.h

/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
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** information use the contact form at https://www.qt.io/contact-us.
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** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
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****************************************************************************/

#pragma once

#include "qmleventlocation.h"
#include "qmlprofilereventtypes.h"
#include "qmlprofilerdatamodel.h"
#include "qmlnote.h"

#include <QFutureInterface>
#include <QObject>
#include <QVector>
#include <QString>

QT_FORWARD_DECLARE_CLASS(QFile)
QT_FORWARD_DECLARE_CLASS(QIODevice)
QT_FORWARD_DECLARE_CLASS(QXmlStreamReader)

namespace QmlProfiler {
namespace Internal {

class QmlProfilerFileReader : public QObject
{
    Q_OBJECT

public:
    explicit QmlProfilerFileReader(QObject *parent = 0);

    void setFuture(QFutureInterface<void> *future);

    bool loadQtd(QIODevice *device);
    bool loadQzt(QIODevice *device);

    quint64 loadedFeatures() const;

    qint64 traceStart() const { return m_traceStart; }
    qint64 traceEnd() const { return m_traceEnd; }

signals:
    void typesLoaded(const QVector<QmlProfiler::QmlEventType> &types);
    void notesLoaded(const QVector<QmlProfiler::QmlNote> &notes);
    void qmlEventsLoaded(const QVector<QmlProfiler::QmlEvent> &event);
    void error(const QString &error);
    void success();

private:
    void loadEventTypes(QXmlStreamReader &reader);
    void loadEvents(QXmlStreamReader &reader);
    void loadNotes(QXmlStreamReader &reader);
    void updateProgress(QIODevice *device);
    bool isCanceled() const;

    qint64 m_traceStart, m_traceEnd;
    QFutureInterface<void> *m_future;
    QVector<QmlEventType> m_eventTypes;
    QVector<QmlNote> m_notes;
    quint64 m_loadedFeatures;
};


class QmlProfilerFileWriter : public QObject
{
    Q_OBJECT

public:
    explicit QmlProfilerFileWriter(QObject *parent = 0);

    void setTraceTime(qint64 startTime, qint64 endTime, qint64 measturedTime);
    void setData(const QmlProfilerDataModel *model);
    void setNotes(const QVector<QmlNote> &notes);
    void setFuture(QFutureInterface<void> *future);

    void saveQtd(QIODevice *device);
    void saveQzt(QFile *file);

private:
    void calculateMeasuredTime();
    void incrementProgress();
    bool isCanceled() const;

    qint64 m_startTime, m_endTime, m_measuredTime;
    QFutureInterface<void> *m_future;
    const QmlProfilerDataModel *m_model;
    QVector<QmlNote> m_notes;
    int m_newProgressValue;
};


} // namespace Internal
} // namespace QmlProfiler