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refactor: better logger

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Uyanide
2025-08-07 02:05:34 +02:00
parent 289db0cbd8
commit b5f0e15e5e
5 changed files with 150 additions and 50 deletions
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src/images_carousel.cpp
+8 -2
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@@ -1,7 +1,7 @@
/*
* @Author: Uyanide pywang0608@foxmail.com
* @Date: 2025-08-05 01:22:53
* @LastEditTime: 2025-08-07 00:50:11
* @LastEditTime: 2025-08-07 02:01:23
* @Description: Animated carousel widget for displaying and selecting images.
*/
#include "images_carousel.h"
@@ -172,6 +172,7 @@ void ImageLoader::run() {
ImageData::ImageData(const QString& p, const int initWidth, const int initHeight) : file(p) {
if (!image.load(p)) {
warn(QString("Failed to load image from path: %1").arg(p));
return;
}
// resize in "cover" mode
const QSize targetSize(initWidth, initHeight);
@@ -290,7 +291,12 @@ ImageItem::ImageItem(const ImageData* data,
m_itemSize(itemWidth, itemHeight),
m_itemFocusSize(itemFocusWidth, itemFocusHeight) {
setScaledContents(true);
setPixmap(QPixmap::fromImage(data->image));
if (data->image.isNull()) {
setText(":(");
setAlignment(Qt::AlignCenter);
} else {
setPixmap(QPixmap::fromImage(data->image));
}
setFixedSize(itemWidth, itemHeight);
}
src/logger.cpp
+106
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@@ -0,0 +1,106 @@
/*
* @Author: Uyanide pywang0608@foxmail.com
* @Date: 2025-08-07 01:12:37
* @LastEditTime: 2025-08-07 01:55:56
* @Description: Implementation of logger.
*/
#include "logger.h"
#include <unistd.h>
#include <QObject>
#include <QProcessEnvironment>
#include <QString>
#include <QTextStream>
#include <QThreadPool>
#ifdef GENERAL_LOGGER_DISABLED
#define ENSURE_ENABLED return;
#else
#define ENSURE_ENABLED
static QTextStream s_logStream(stderr);
#endif
Logger* Logger::instance(FILE* stream) {
static Logger* logger{};
if (!logger) {
if (!stream) {
stream = stderr; // Default to stderr if no stream provided
}
logger = new Logger(stream);
}
return logger;
}
Logger::Logger(FILE* stream, QObject* parent)
: QObject(parent), m_stream(stream), m_logStream(stream) {
connect(this,
&Logger::logSig,
this,
&Logger::_log,
Qt::QueuedConnection);
}
void Logger::_log(
const QString& msg,
const QString& levelString,
const QString& levelColorString,
const QString& textColorString,
const GeneralLogger::LogIndent indent) {
ENSURE_ENABLED
s_logStream << levelColorString << levelString << ' ';
for (qint32 i = 0; i < indent; i++) s_logStream << " ";
s_logStream << textColorString << msg << (textColorString.isEmpty() ? "\n" : "\033[0m\n");
s_logStream.flush();
}
bool Logger::isColored() {
const auto stream = Logger::instance()->m_stream;
if (!isatty(fileno(stream))) {
return false;
}
QProcessEnvironment env = QProcessEnvironment::systemEnvironment();
QString term = env.value("TERM");
if (term.isEmpty() || term == "dumb") {
return false;
}
return true;
}
void GeneralLogger::info(
const QString& msg,
const GeneralLogger::LogIndent indent) {
ENSURE_ENABLED
constexpr const char* colorInfoMsg[]{"\033[32m", "\033[0m", "\033[0m"};
const auto color = Logger::isColored();
emit Logger::instance() -> logSig(msg,
"[INFO]",
color ? "\033[92m" : "",
color ? colorInfoMsg[indent] : "",
indent);
}
void GeneralLogger::warn(
const QString& msg,
const GeneralLogger::LogIndent indent) {
ENSURE_ENABLED
const auto color = Logger::isColored();
emit Logger::instance() -> logSig(msg,
"[WARN]",
color ? "\033[93m" : "",
color ? "\033[33m" : "",
indent);
}
void GeneralLogger::error(
const QString& msg,
const GeneralLogger::LogIndent indent) {
ENSURE_ENABLED
const auto color = Logger::isColored();
emit Logger::instance() -> logSig(msg,
"[ERROR]",
color ? "\033[91m" : "",
color ? "\033[31m" : "",
indent);
}
src/logger.h
+34 -43
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@@ -1,71 +1,62 @@
/*
* @Author: Uyanide pywang0608@foxmail.com
* @Date: 2025-08-05 10:43:31
* @LastEditTime: 2025-08-05 17:25:18
* @Description: A simple logger for general use.
* g_logStream must be defined somewhere else in the project.
* @LastEditTime: 2025-08-07 01:55:42
* @Description: A simple thread-safe logger for general use.
*/
#ifndef GENERAL_LOGGER_H
#define GENERAL_LOGGER_H
#include <QObject>
#include <QString>
#include <QTextStream>
namespace GeneralLogger {
inline constexpr const char* colorInfoMsg[]{"\033[32m", "\033[0m", "\033[0m"};
enum LogIndent : qint32 {
GENERAL = 0,
STEP = 1,
DETAIL = 2,
};
#ifdef GENERAL_LOGGER_DISABLED
#define ENSURE_ENABLED return;
#else
#define ENSURE_ENABLED
extern QTextStream g_logStream;
#endif
void info(const QString& msg,
const LogIndent indent = GENERAL);
inline void
info(const QString& msg,
const LogIndent indent = GENERAL,
const bool color = true) {
ENSURE_ENABLED
void warn(const QString& msg,
const LogIndent indent = GENERAL);
g_logStream << (color ? "\033[92m" : "") << "[INFO] ";
for (qint32 i = 0; i < indent; i++) g_logStream << " ";
g_logStream << (color ? colorInfoMsg[indent] : "") << msg << (color ? "\033[0m\n" : "\n");
g_logStream.flush();
}
void error(const QString& msg,
const LogIndent indent = GENERAL);
} // namespace GeneralLogger
inline void
warn(const QString& msg,
const LogIndent indent = GENERAL,
const bool color = true) {
ENSURE_ENABLED
class Logger : public QObject {
Q_OBJECT
g_logStream << (color ? "\033[93m" : "") << "[WARN] ";
for (uint32_t i = 0; i < indent; i++) g_logStream << " ";
g_logStream << (color ? "\033[33m" : "") << msg << (color ? "\033[0m\n" : "\n");
g_logStream.flush();
}
public:
static Logger* instance(FILE* stream = nullptr);
inline void
error(const QString& msg,
const LogIndent indent = GENERAL,
const bool color = true) {
ENSURE_ENABLED
static bool isColored();
g_logStream << (color ? "\033[91m" : "") << "[ERROR] ";
for (uint32_t i = 0; i < indent; i++) g_logStream << " ";
g_logStream << (color ? "\033[31m" : "") << msg << (color ? "\033[0m\n" : "\n");
g_logStream.flush();
}
private:
explicit Logger(FILE* stream, QObject* parent = nullptr);
#undef ENSURE_ENABLED
private slots:
void _log(const QString& msg,
const QString& levelString,
const QString& levelColorString,
const QString& textColorString,
const GeneralLogger::LogIndent indent);
}; // namespace GeneralLogger
private:
FILE* m_stream;
QTextStream m_logStream;
signals:
void logSig(const QString& msg,
const QString& levelString,
const QString& levelColorString,
const QString& textColorString,
const GeneralLogger::LogIndent indent);
};
#endif // GENERAL_LOGGER_H
src/main.cpp
+1 -4
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@@ -1,7 +1,7 @@
/*
* @Author: Uyanide pywang0608@foxmail.com
* @Date: 2025-08-05 00:37:58
* @LastEditTime: 2025-08-05 19:42:07
* @LastEditTime: 2025-08-07 01:49:07
* @Description: Entry point.
*/
#include <qapplication.h>
@@ -12,11 +12,8 @@
#include <QTextStream>
#include "config.h"
#include "logger.h"
#include "main_window.h"
QTextStream GeneralLogger::g_logStream(stderr);
static QString getConfigDir() {
auto configDir = QStandardPaths::writableLocation(QStandardPaths::AppConfigLocation);
if (configDir.isEmpty()) {