57 lines
1.8 KiB
C++
Executable File
57 lines
1.8 KiB
C++
Executable File
#include "LogHandler.h"
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#include <QDateTime>
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#include <QMetaObject>
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#include <iostream>
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// 初始化静态成员
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LogHandler* LogHandler::s_instance = nullptr;
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QMutex LogHandler::s_mutex;
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LogHandler::LogHandler(QObject *parent) : QObject(parent), m_logWidget(nullptr) {
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}
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// 获取单例实例（线程安全）
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LogHandler* LogHandler::log_instance() {
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if (!s_instance) {
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QMutexLocker locker(&s_mutex);
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if (!s_instance) {
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s_instance = new LogHandler();
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}
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}
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return s_instance;
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}
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// 初始化日志输出目标
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void LogHandler::log_init(QPlainTextEdit *logWidget) {
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LogHandler *handler = log_instance();
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handler->m_logWidget = logWidget;
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qInstallMessageHandler(log_handleMessage); // 注册消息处理器
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}
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// 静态消息处理函数
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void LogHandler::log_handleMessage(QtMsgType type, const QMessageLogContext &, const QString &msg) {
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LogHandler *handler = log_instance();
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if (!handler) return;
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// 格式化日志消息（添加时间和日志级别）
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QString timestamp = QDateTime::currentDateTime().toString("[hh:mm:ss.zzz] ");
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QString level;
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switch (type) {
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case QtDebugMsg: level = "DEBUG"; break;
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case QtInfoMsg: level = "INFO"; break;
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case QtWarningMsg: level = "WARN"; break;
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case QtCriticalMsg: level = "ERROR"; break;
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case QtFatalMsg: level = "FATAL"; break;
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}
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QString formattedMsg = QString("%1[%2] %3").arg(timestamp, level, msg);
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// 如果有UI组件，通过信号槽更新（线程安全）
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if (handler->m_logWidget) {
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emit handler->log_messageLogged(formattedMsg);
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} else {
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// 无UI时输出到控制台
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std::cerr << formattedMsg.toStdString() << std::endl;
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}
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}
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