mirror of
https://github.com/crystalidea/qt6windows7.git
synced 2024-11-23 20:10:48 +08:00
108 lines
2.9 KiB
C++
108 lines
2.9 KiB
C++
// Copyright (C) 2021 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
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#include "logwidget.h"
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#include <QApplication>
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#include <QStyle>
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#include <QtCore/QDebug>
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#include <QtCore/QLibraryInfo>
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#include <QtCore/QList>
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#include <QtCore/qlogging.h>
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#include <QtCore/QStringList>
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#include <iostream>
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LogWidget *LogWidget::m_instance = nullptr;
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bool LogWidget::m_lineNumberingEnabled = true;
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bool LogWidget::m_showMessageType = true;
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int LogWidget::m_indent = 0;
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LogWidget::LogWidget(QWidget *parent)
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: QPlainTextEdit(parent)
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{
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LogWidget::m_instance = this;
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setReadOnly(true);
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}
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LogWidget::~LogWidget()
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{
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LogWidget::m_instance = nullptr;
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}
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QString LogWidget::startupMessage()
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{
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QString result;
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result += QLatin1String(QLibraryInfo::build());
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const QCoreApplication *coreApp = QCoreApplication::instance();
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if (qobject_cast<const QGuiApplication *>(coreApp)) {
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result += QLatin1Char(' ');
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result += QGuiApplication::platformName();
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}
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if (qobject_cast<const QApplication *>(coreApp)) {
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result += QLatin1Char(' ');
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result += QApplication::style()->objectName();
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}
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if (coreApp) {
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QStringList arguments = QCoreApplication::arguments();
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arguments.pop_front();
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if (!arguments.isEmpty()) {
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result += QLatin1Char('\n');
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result += arguments.join(QLatin1String(" "));
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}
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}
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return result;
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}
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static const QList<QString> &messageTypes()
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{
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static QList<QString> result;
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if (result.isEmpty()) {
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result << QLatin1String("debug") << QLatin1String("warn")
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<< QLatin1String("critical") << QLatin1String("fatal")
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<< QLatin1String("info");
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}
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return result;
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}
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static void messageHandler(QtMsgType type, const QString &text)
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{
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static int n = 0;
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QString message;
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if (LogWidget::lineNumberingEnabled())
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message.append(QString::fromLatin1("%1 ").arg(n, 4, 10, QLatin1Char('0')));
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if (LogWidget::showMessageType()) {
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message.append(messageTypes().at(type));
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message.append(QLatin1Char(' '));
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}
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for (int i = 0, ie = LogWidget::indent(); i < ie; ++i)
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message.append(QLatin1Char(' '));
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message.append(text);
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if (LogWidget *logWindow = LogWidget::instance())
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logWindow->appendText(message);
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#ifdef Q_OS_WIN
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std::wcerr << reinterpret_cast<const wchar_t *>(message.utf16()) << L'\n';
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#else
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std::cerr << qPrintable(message) << '\n';
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#endif
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n++;
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}
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static void qtMessageHandler(QtMsgType type, const QMessageLogContext &, const QString &text)
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{ messageHandler(type, text); }
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void LogWidget::install()
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{
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qInstallMessageHandler(qtMessageHandler);
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qInfo("%s", qPrintable(LogWidget::startupMessage()));
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}
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void LogWidget::uninstall() { qInstallMessageHandler(nullptr); }
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void LogWidget::appendText(const QString &message)
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{
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appendPlainText(message);
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ensureCursorVisible();
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}
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