| /**************************************************************************** |
| ** |
| ** Copyright (C) 2017 The Qt Company Ltd. |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the test suite of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:GPL-EXCEPT$ |
| ** 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 https://www.qt.io/terms-conditions. For further |
| ** information use the contact form at https://www.qt.io/contact-us. |
| ** |
| ** 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 |
| ** be met: https://www.gnu.org/licenses/gpl-3.0.html. |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #include "logwidget.h" |
| #if QT_VERSION >= 0x050000 |
| # include <QtCore/qlogging.h> |
| # include <QtCore/QLibraryInfo> |
| #endif |
| #include <QApplication> |
| #include <QStyle> |
| |
| #include <QtCore/QDebug> |
| #include <QtCore/QVector> |
| #include <QtCore/QStringList> |
| |
| #include <iostream> |
| |
| LogWidget *LogWidget::m_instance = nullptr; |
| bool LogWidget::m_lineNumberingEnabled = true; |
| bool LogWidget::m_showMessageType = true; |
| int LogWidget::m_indent = 0; |
| |
| LogWidget::LogWidget(QWidget *parent) |
| : QPlainTextEdit(parent) |
| { |
| LogWidget::m_instance = this; |
| setReadOnly(true); |
| } |
| |
| LogWidget::~LogWidget() |
| { |
| LogWidget::m_instance = nullptr; |
| } |
| |
| QString LogWidget::startupMessage() |
| { |
| QString result; |
| #if QT_VERSION >= 0x050300 |
| result += QLatin1String(QLibraryInfo::build()); |
| #else |
| result += QLatin1String("Qt ") + QLatin1String(QT_VERSION_STR); |
| #endif |
| |
| const QCoreApplication *coreApp = QCoreApplication::instance(); |
| #if QT_VERSION >= 0x050000 |
| if (qobject_cast<const QGuiApplication *>(coreApp)) { |
| result += QLatin1Char(' '); |
| result += QGuiApplication::platformName(); |
| } |
| #endif |
| if (qobject_cast<const QApplication *>(coreApp)) { |
| result += QLatin1Char(' '); |
| result += QApplication::style()->objectName(); |
| } |
| if (coreApp) { |
| QStringList arguments = QCoreApplication::arguments(); |
| arguments.pop_front(); |
| if (!arguments.isEmpty()) { |
| result += QLatin1Char('\n'); |
| result += arguments.join(QLatin1String(" ")); |
| } |
| } |
| return result; |
| } |
| |
| static const QVector<QString> &messageTypes() |
| { |
| static QVector<QString> result; |
| if (result.isEmpty()) { |
| result << QLatin1String("debug") << QLatin1String("warn") |
| << QLatin1String("critical") << QLatin1String("fatal") |
| << QLatin1String("info"); |
| } |
| return result; |
| } |
| |
| static void messageHandler(QtMsgType type, const QString &text) |
| { |
| static int n = 0; |
| QString message; |
| if (LogWidget::lineNumberingEnabled()) |
| message.append(QString::fromLatin1("%1 ").arg(n, 4, 10, QLatin1Char('0'))); |
| if (LogWidget::showMessageType()) { |
| message.append(messageTypes().at(type)); |
| message.append(QLatin1Char(' ')); |
| } |
| for (int i = 0, ie = LogWidget::indent(); i < ie; ++i) |
| message.append(QLatin1Char(' ')); |
| message.append(text); |
| if (LogWidget *logWindow = LogWidget::instance()) |
| logWindow->appendText(message); |
| #ifdef Q_OS_WIN |
| std::wcerr << reinterpret_cast<const wchar_t *>(message.utf16()) << L'\n'; |
| #else |
| std::cerr << qPrintable(message) << '\n'; |
| #endif |
| n++; |
| } |
| |
| #if QT_VERSION >= 0x050000 |
| |
| static void qt5MessageHandler(QtMsgType type, const QMessageLogContext &, const QString &text) |
| { messageHandler(type, text); } |
| |
| void LogWidget::install() |
| { |
| qInstallMessageHandler(qt5MessageHandler); |
| qInfo("%s", qPrintable(LogWidget::startupMessage())); |
| } |
| |
| void LogWidget::uninstall() { qInstallMessageHandler(nullptr); } |
| |
| #else // Qt 5 |
| |
| static QtMsgHandler oldHandler = 0; |
| |
| static void qt4MessageHandler(QtMsgType type, const char *text) |
| { messageHandler(type, QString::fromLocal8Bit(text)); } |
| |
| void LogWidget::install() |
| { |
| oldHandler = qInstallMsgHandler(qt4MessageHandler); |
| qDebug("%s", qPrintable(LogWidget::startupMessage())); |
| } |
| |
| void LogWidget::uninstall() { qInstallMsgHandler(oldHandler); } |
| |
| #endif // Qt 4 |
| |
| void LogWidget::appendText(const QString &message) |
| { |
| appendPlainText(message); |
| ensureCursorVisible(); |
| } |