1 files changed, 164 insertions, 0 deletions
diff --git a/tests/manual/diaglib/logwidget.cpp b/tests/manual/diaglib/logwidget.cpp
new file mode 100644
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+++ b/tests/manual/diaglib/logwidget.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL21$
+** 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 2.1 or version 3 as published by the Free
+** Software Foundation and appearing in the file LICENSE.LGPLv21 and
+** LICENSE.LGPLv3 included in the packaging of this file. Please review the
+** following information to ensure the GNU Lesser General Public License
+** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** As a special exception, The Qt Company gives you certain additional
+** rights. These rights are described in The Qt Company LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#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 = 0;
+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 = 0;
+}
+
+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(Q_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();
+}