polovik’s gists

polovik / qt_code_style.sh

Created August 26, 2016 12:02

Rreformatting C++ code according to Qt Coding Style

astyle --brackets=linux --indent=spaces=4 --indent-preprocessor --min-conditional-indent=0 --max-instatement-indent=40 --pad-oper --unpad-paren  --pad-header --fill-empty-lines --align-pointer=name --align-reference=name --convert-tabs --lineend=linux --formatted `find ./ -type f -name '*.c' -or -name '*.h' -or -name '*.cpp'`

polovik / qt_project.pro

Last active August 29, 2015 14:03

Add libraries from Qt framework to project's build folder - use "system" procedure for call "xcopy" on Windows for deployment.

	TARGET = applicationName
	DESTDIR = ../../build

	outDir = $$DESTDIR
	outDir = $$replace(outDir, /, \\)
	system(mkdir $$outDir)
	system(xcopy /V /R /Y "%QTDIR%\bin\libgcc_s_dw2-1.dll" $$outDir)
	system(xcopy /V /R /Y "%QTDIR%\bin\libwinpthread-1.dll" $$outDir)
	system(xcopy /V /R /Y "%QTDIR%\bin\libstdc++-6.dll" $$outDir)
	system(xcopy /V /R /Y "%QTDIR%\bin\icu*.dll" $$outDir)

polovik / unique_app_instance_WinApi.cpp

Last active August 29, 2015 13:59

Verify unique instance of application in WinApi (Visual Studio C++)

	int CALLBACK wWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPWSTR lpCmdLine, int nCmdShow)
	{
	// Avoid multiple instances of application
	const WCHAR *applicationMutexName = L"autorun_st";
	HANDLE mutexAppHandle = CreateMutex(NULL, TRUE, applicationMutexName);
	if (GetLastError() == ERROR_ALREADY_EXISTS) {
	CloseHandle(mutexAppHandle);
	return EXIT_FAILURE;
	}
	...

polovik / unique_app_instance_Qt.cpp

Last active August 29, 2015 13:59

Verify unique instance of application in Qt

	#include <QSharedMemory>

	int main(int argc, char *argv[])
	{
	// Verify unique instance of application
	QSharedMemory sharedMemory("service");
	if (sharedMemory.attach())
	return EXIT_FAILURE;
	if (!sharedMemory.create(1))
	return EXIT_FAILURE;

polovik / logging_Qt.cpp

Last active July 20, 2023 11:52

Log to file or log to output panel in QtCreator for Qt

	#include <QtDebug>
	#include <QTranslator>
	#include <QTextCodec>
	#include <QLocale>
	#include <QTime>
	#include <QDir>

	static QTextCodec *logCodec = NULL;
	static FILE *logStream = NULL;
	QString g_logFilePath = "";

polovik / logging_Linux.c

Last active August 29, 2015 13:57

Log to file and log to syslog on Linux on C

	#include <stdarg.h>
	#include <syslog.h>
	#include <time.h>

	/**
	* \brief Log levels. Used to control applications's verbosity.
	*
	* Verbosity is as follows: LOG_CRITICAL_ERROR is least verbose,
	* LOG_EVENT is the most verbose log level.
	*/

polovik / logging_VisualStudio.cpp

Last active August 29, 2015 13:57

Log in file for Visual Studio

	typedef enum {
	LOG_INFO = 0, /*< Notification for better debugging /
	LOG_WARNING = 1,/*< Incorrect work of application, but it doesn't lead to crash /
	LOG_ERROR = 2 /*< Big problem - application is crashed /
	} logLevel_e;

	static FILE *g_logStream = NULL;
	static WCHAR g_logFilePath[MAX_PATH];
	static WCHAR g_logMessage[10000];