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/****************************************************************************
**
** Copyright (C) 2016 Shawn Rutledge
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the Qt Labs UmlQuick project.
**
** $QT_BEGIN_LICENSE:LGPL3$
** 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
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPLv3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or later as published by the Free
** Software Foundation and appearing in the file LICENSE.GPL included in
** the packaging of this file. Please review the following information to
** ensure the GNU General Public License version 2.0 requirements will be
** met: http://www.gnu.org/licenses/gpl-2.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef MESSAGETRACE_H
#define MESSAGETRACE_H
#include <QFile>
#include <QHash>
#include <QLoggingCategory>
#include <QRegularExpression>
#include <QQmlEngine>
QT_BEGIN_NAMESPACE
class MessageTrace : public QObject
{
Q_OBJECT
Q_PROPERTY(QString category READ category WRITE setCategory NOTIFY categoryChanged)
Q_PROPERTY(QString outputPrefix READ outputPrefix WRITE setOutputPrefix NOTIFY outputPrefixChanged)
Q_PROPERTY(bool enabled READ enabled WRITE setEnabled NOTIFY enabledChanged)
Q_PROPERTY(OutputFormat outputFormat READ outputFormat WRITE setOutputFormat NOTIFY outputFormatChanged)
QML_ELEMENT
public:
enum class OutputFormat {
QML,
PlantUML
};
Q_ENUM(OutputFormat)
MessageTrace();
QString category() const;
void setCategory(QString category);
QString outputPrefix() const { return m_outputPrefix; }
void setOutputPrefix(QString outputPrefix);
bool enabled() const { return m_enabled; }
void setEnabled(bool enabled);
OutputFormat outputFormat() const;
void setOutputFormat(OutputFormat fmt);
signals:
void categoryChanged();
void outputPrefixChanged();
void enabledChanged();
void outputFormatChanged();
private:
static void categoryFilter(QLoggingCategory *cat);
static void messageHandler(QtMsgType type, const QMessageLogContext &context, const QString &text);
void log(QtMsgType type, const QMessageLogContext &context, const QString &rawText);
void logBacktrace(QStringList trace);
void parseClassAndMethod(const QString &classAndMethod, QString &className, QString &methodName);
static QString objectId(void *obj);
void addObjectInstance(void *obj, const QString &objClass);
void writeObjectInstanceQml(QFile &f, QObject *o);
void writeObjectInstancePuml(QFile &f, QObject *o);
void write();
void writeQml(const QString &plainFilePath);
void writePuml(const QString &plainFilePath);
private:
struct Message {
double timestamp;
bool inferredFromBacktrace = false;
QtMsgType type;
void *callerPointer;
QString callerClass;
QString callerMethod;
void *calleePointer;
QString calleeClass;
QString calleeMethod;
QString calleeSignature;
QStringList backtrace;
QString params;
QString toQml() const;
QString toPuml() const;
};
static QHash<QByteArray, QList<MessageTrace*> > m_categoryInstances;
static QtMessageHandler m_parentMessageHandler;
static QRegularExpression m_regexObjectFormatted;
static QRegularExpression m_regexPointer;
static QHash<void*, QObject*> m_objects; // both QObjects and QObjectPrivates have entries here
QList<Message> m_messages;
QStringList m_previousBacktrace;
double m_previousTimestamp;
QHash<QString, QString> m_tracedObjectsById;
QHash<QString, void*> m_recentObjectsByClass;
bool m_enabled;
QByteArray m_category;
QString m_outputPrefix;
OutputFormat m_outputFormat = OutputFormat::PlantUML;
};
QT_END_NAMESPACE
#endif // MESSAGETRACE_H
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