mirror of
https://github.com/saitohirga/WSJT-X.git
synced 2024-10-31 15:47:10 -04:00
453 lines
17 KiB
C++
453 lines
17 KiB
C++
#include <iostream>
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#include <exception>
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#include <stdexcept>
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#include <string>
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#include <locale.h>
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#include <fftw3.h>
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#include <QSharedMemory>
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#include <QTemporaryFile>
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#include <QDateTime>
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#include <QApplication>
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#include <QLocale>
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#include <QTranslator>
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#include <QRegularExpression>
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#include <QObject>
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#include <QSettings>
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#include <QSysInfo>
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#include <QDir>
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#include <QDirIterator>
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#include <QStandardPaths>
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#include <QStringList>
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#include <QLockFile>
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#include <QSplashScreen>
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#include <QCommandLineParser>
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#include <QCommandLineOption>
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#include <QSqlDatabase>
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#include <QSqlQuery>
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#include <QSqlError>
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#include "revision_utils.hpp"
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#include "MetaDataRegistry.hpp"
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#include "L10nLoader.hpp"
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#include "SettingsGroup.hpp"
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#include "TraceFile.hpp"
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#include "MultiSettings.hpp"
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#include "widgets/mainwindow.h"
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#include "commons.h"
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#include "lib/init_random_seed.h"
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#include "Radio.hpp"
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#include "models/FrequencyList.hpp"
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#include "widgets/SplashScreen.hpp"
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#include "widgets/MessageBox.hpp" // last to avoid nasty MS macro definitions
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extern "C" {
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// Fortran procedures we need
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void four2a_(_Complex float *, int * nfft, int * ndim, int * isign, int * iform, int len);
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}
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namespace
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{
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#if QT_VERSION < QT_VERSION_CHECK (5, 15, 0)
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struct RNGSetup
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{
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RNGSetup ()
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{
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// one time seed of pseudo RNGs from current time
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auto seed = QDateTime::currentMSecsSinceEpoch ();
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qsrand (seed); // this is good for rand() as well
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}
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} seeding;
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#endif
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// We can't use the GUI after QApplication::exit() is called so
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// uncaught exceptions can get lost on Windows systems where there
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// is no console terminal, so here we override
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// QApplication::notify() and wrap the base class call with a try
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// block to catch and display exceptions in a message box.
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class ExceptionCatchingApplication final
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: public QApplication
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{
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public:
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explicit ExceptionCatchingApplication (int& argc, char * * argv)
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: QApplication {argc, argv}
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{
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}
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bool notify (QObject * receiver, QEvent * e) override
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{
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try
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{
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return QApplication::notify (receiver, e);
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}
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catch (std::exception const& e)
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{
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MessageBox::critical_message (nullptr, "Fatal error", e.what ());
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throw;
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}
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catch (...)
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{
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MessageBox::critical_message (nullptr, "Unexpected fatal error");
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throw;
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}
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}
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};
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}
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int main(int argc, char *argv[])
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{
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// ### Add timestamps to all debug messages
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// qSetMessagePattern ("[%{time yyyyMMdd HH:mm:ss.zzz t} %{if-debug}D%{endif}%{if-info}I%{endif}%{if-warning}W%{endif}%{if-critical}C%{endif}%{if-fatal}F%{endif}] %{message}");
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init_random_seed ();
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// make the Qt type magic happen
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Radio::register_types ();
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register_types ();
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// Multiple instances communicate with jt9 via this
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QSharedMemory mem_jt9;
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ExceptionCatchingApplication a(argc, argv);
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try
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{
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// qDebug () << "+++++++++++++++++++++++++++ Resources ++++++++++++++++++++++++++++";
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// {
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// QDirIterator resources_iter {":/", QDirIterator::Subdirectories};
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// while (resources_iter.hasNext ())
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// {
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// qDebug () << resources_iter.next ();
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// }
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// }
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// qDebug () << "--------------------------- Resources ----------------------------";
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QLocale locale; // get the current system locale
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setlocale (LC_NUMERIC, "C"); // ensure number forms are in
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// consistent format, do this after
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// instantiating QApplication so
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// that GUI has correct l18n
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// Override programs executable basename as application name.
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a.setApplicationName ("WSJT-X");
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a.setApplicationVersion (version ());
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QCommandLineParser parser;
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parser.setApplicationDescription ("\n" PROJECT_SUMMARY_DESCRIPTION);
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auto help_option = parser.addHelpOption ();
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auto version_option = parser.addVersionOption ();
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// support for multiple instances running from a single installation
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QCommandLineOption rig_option (QStringList {} << "r" << "rig-name"
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, "Where <rig-name> is for multi-instance support."
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, "rig-name");
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parser.addOption (rig_option);
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// support for start up configuration
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QCommandLineOption cfg_option (QStringList {} << "c" << "config"
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, "Where <configuration> is an existing one."
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, "configuration");
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parser.addOption (cfg_option);
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// support for UI language override (useful on Windows)
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QCommandLineOption lang_option (QStringList {} << "l" << "language"
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, "Where <language> is <lang-code>[-<country-code>]."
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, "language");
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parser.addOption (lang_option);
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QCommandLineOption test_option (QStringList {} << "test-mode"
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, "Writable files in test location. Use with caution, for testing only.");
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parser.addOption (test_option);
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if (!parser.parse (a.arguments ()))
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{
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MessageBox::critical_message (nullptr, "Command line error", parser.errorText ());
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return -1;
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}
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else
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{
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if (parser.isSet (help_option))
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{
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MessageBox::information_message (nullptr, "Command line help", parser.helpText ());
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return 0;
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}
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else if (parser.isSet (version_option))
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{
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MessageBox::information_message (nullptr, "Application version", a.applicationVersion ());
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return 0;
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}
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}
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// load UI translations
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L10nLoader l10n {&a, locale, parser.value (lang_option)};
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QStandardPaths::setTestModeEnabled (parser.isSet (test_option));
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// support for multiple instances running from a single installation
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bool multiple {false};
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if (parser.isSet (rig_option) || parser.isSet (test_option))
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{
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auto temp_name = parser.value (rig_option);
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if (!temp_name.isEmpty ())
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{
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if (temp_name.contains (QRegularExpression {R"([\\/,])"}))
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{
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std::cerr << "Invalid rig name - \\ & / not allowed" << std::endl;
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parser.showHelp (-1);
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}
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a.setApplicationName (a.applicationName () + " - " + temp_name);
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}
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if (parser.isSet (test_option))
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{
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a.setApplicationName (a.applicationName () + " - test");
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}
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multiple = true;
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}
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// now we have the application name we can open the settings
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MultiSettings multi_settings {parser.value (cfg_option)};
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// find the temporary files path
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QDir temp_dir {QStandardPaths::writableLocation (QStandardPaths::TempLocation)};
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Q_ASSERT (temp_dir.exists ()); // sanity check
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// disallow multiple instances with same instance key
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QLockFile instance_lock {temp_dir.absoluteFilePath (a.applicationName () + ".lock")};
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instance_lock.setStaleLockTime (0);
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bool lock_ok {false};
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while (!(lock_ok = instance_lock.tryLock ()))
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{
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if (QLockFile::LockFailedError == instance_lock.error ())
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{
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auto button = MessageBox::query_message (nullptr
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, a.translate ("main", "Another instance may be running")
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, a.translate ("main", "try to remove stale lock file?")
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, QString {}
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, MessageBox::Yes | MessageBox::Retry | MessageBox::No
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, MessageBox::Yes);
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switch (button)
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{
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case MessageBox::Yes:
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instance_lock.removeStaleLockFile ();
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break;
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case MessageBox::Retry:
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break;
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default:
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throw std::runtime_error {"Multiple instances must have unique rig names"};
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}
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}
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}
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#if WSJT_QDEBUG_TO_FILE
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// Open a trace file
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TraceFile trace_file {temp_dir.absoluteFilePath (a.applicationName () + "_trace.log")};
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qSetMessagePattern ("[%{time yyyyMMdd HH:mm:ss.zzz t} %{if-debug}D%{endif}%{if-info}I%{endif}%{if-warning}W%{endif}%{if-critical}C%{endif}%{if-fatal}F%{endif}] %{file}:%{line} - %{message}");
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qDebug () << program_title (revision ()) + " - Program startup";
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#endif
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// Create a unique writeable temporary directory in a suitable location
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bool temp_ok {false};
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QString unique_directory {QApplication::applicationName ()};
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do
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{
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if (!temp_dir.mkpath (unique_directory)
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|| !temp_dir.cd (unique_directory))
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{
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MessageBox::critical_message (nullptr,
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a.translate ("main", "Failed to create a temporary directory"),
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a.translate ("main", "Path: \"%1\"").arg (temp_dir.absolutePath ()));
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throw std::runtime_error {"Failed to create a temporary directory"};
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}
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if (!temp_dir.isReadable () || !(temp_ok = QTemporaryFile {temp_dir.absoluteFilePath ("test")}.open ()))
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{
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auto button = MessageBox::critical_message (nullptr,
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a.translate ("main", "Failed to create a usable temporary directory"),
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a.translate ("main", "Another application may be locking the directory"),
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a.translate ("main", "Path: \"%1\"").arg (temp_dir.absolutePath ()),
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MessageBox::Retry | MessageBox::Cancel);
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if (MessageBox::Cancel == button)
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{
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throw std::runtime_error {"Failed to create a usable temporary directory"};
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}
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temp_dir.cdUp (); // revert to parent as this one is no good
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}
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}
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while (!temp_ok);
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SplashScreen splash;
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{
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// change this key if you want to force a new splash screen
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// for a new version, the user will be able to re-disable it
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// if they wish
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QString splash_flag_name {"Splash_v1.7"};
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if (multi_settings.common_value (splash_flag_name, true).toBool ())
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{
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QObject::connect (&splash, &SplashScreen::disabled, [&, splash_flag_name] {
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multi_settings.set_common_value (splash_flag_name, false);
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splash.close ();
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});
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splash.show ();
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a.processEvents ();
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}
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}
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// create writeable data directory if not already there
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auto writeable_data_dir = QDir {QStandardPaths::writableLocation (QStandardPaths::DataLocation)};
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if (!writeable_data_dir.mkpath ("."))
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{
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MessageBox::critical_message (nullptr, a.translate ("main", "Failed to create data directory"),
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a.translate ("main", "path: \"%1\"").arg (writeable_data_dir.absolutePath ()));
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throw std::runtime_error {"Failed to create data directory"};
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}
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// set up SQLite database
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if (!QSqlDatabase::drivers ().contains ("QSQLITE"))
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{
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throw std::runtime_error {"Failed to find SQLite Qt driver"};
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}
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auto db = QSqlDatabase::addDatabase ("QSQLITE");
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db.setDatabaseName (writeable_data_dir.absoluteFilePath ("db.sqlite"));
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if (!db.open ())
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{
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throw std::runtime_error {("Database Error: " + db.lastError ().text ()).toStdString ()};
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}
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// better performance traded for a risk of d/b corruption
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// on system crash or application crash
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// db.exec ("PRAGMA synchronous=OFF"); // system crash risk
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// db.exec ("PRAGMA journal_mode=MEMORY"); // application crash risk
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db.exec ("PRAGMA locking_mode=EXCLUSIVE");
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int result;
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auto const& original_style_sheet = a.styleSheet ();
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do
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{
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#if WSJT_QDEBUG_TO_FILE
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// announce to trace file and dump settings
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qDebug () << "++++++++++++++++++++++++++++ Settings ++++++++++++++++++++++++++++";
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for (auto const& key: multi_settings.settings ()->allKeys ())
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{
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auto const& value = multi_settings.settings ()->value (key);
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if (value.canConvert<QVariantList> ())
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{
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auto const sequence = value.value<QSequentialIterable> ();
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qDebug ().nospace () << key << ": ";
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for (auto const& item: sequence)
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{
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qDebug ().nospace () << '\t' << item;
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}
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}
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else
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{
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qDebug ().nospace () << key << ": " << value;
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}
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}
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qDebug () << "---------------------------- Settings ----------------------------";
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#endif
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// Create and initialize shared memory segment
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// Multiple instances: use rig_name as shared memory key
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mem_jt9.setKey(a.applicationName ());
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// try and shut down any orphaned jt9 process
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for (int i = 3; i; --i) // three tries to close old jt9
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{
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if (mem_jt9.attach ()) // shared memory presence implies
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// orphaned jt9 sub-process
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{
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dec_data_t * dd = reinterpret_cast<dec_data_t *> (mem_jt9.data());
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mem_jt9.lock ();
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dd->ipc[1] = 999; // tell jt9 to shut down
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mem_jt9.unlock ();
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mem_jt9.detach (); // start again
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}
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else
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{
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break; // good to go
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}
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QThread::sleep (1); // wait for jt9 to end
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}
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if (!mem_jt9.attach ())
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{
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if (!mem_jt9.create (sizeof (dec_data)))
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{
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splash.hide ();
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MessageBox::critical_message (nullptr, a.translate ("main", "Shared memory error"),
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a.translate ("main", "Unable to create shared memory segment"));
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throw std::runtime_error {"Shared memory error"};
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}
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qDebug () << "shmem size:" << mem_jt9.size ();
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}
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else
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{
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splash.hide ();
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MessageBox::critical_message (nullptr, a.translate ("main", "Sub-process error"),
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a.translate ("main", "Failed to close orphaned jt9 process"));
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throw std::runtime_error {"Sub-process error"};
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}
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mem_jt9.lock ();
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memset(mem_jt9.data(),0,sizeof(struct dec_data)); //Zero all decoding params in shared memory
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mem_jt9.unlock ();
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unsigned downSampleFactor;
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{
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SettingsGroup {multi_settings.settings (), "Tune"};
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// deal with Windows Vista and earlier input audio rate
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// converter problems
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downSampleFactor = multi_settings.settings ()->value ("Audio/DisableInputResampling",
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#if defined (Q_OS_WIN)
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// default to true for
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// Windows Vista and older
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QSysInfo::WV_VISTA >= QSysInfo::WindowsVersion ? true : false
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#else
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false
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#endif
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).toBool () ? 1u : 4u;
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}
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// run the application UI
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MainWindow w(temp_dir, multiple, &multi_settings, &mem_jt9, downSampleFactor, &splash);
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w.show();
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splash.raise ();
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QObject::connect (&a, SIGNAL (lastWindowClosed()), &a, SLOT (quit()));
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result = a.exec();
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// ensure config switches start with the right style sheet
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a.setStyleSheet (original_style_sheet);
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}
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while (!result && !multi_settings.exit ());
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// clean up lazily initialized resources
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{
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int nfft {-1};
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int ndim {1};
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int isign {1};
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int iform {1};
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// free FFT plan resources
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four2a_ (nullptr, &nfft, &ndim, &isign, &iform, 0);
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}
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fftwf_forget_wisdom ();
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fftwf_cleanup ();
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temp_dir.removeRecursively (); // clean up temp files
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return result;
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}
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catch (std::exception const& e)
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{
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MessageBox::critical_message (nullptr, "Fatal error", e.what ());
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std::cerr << "Error: " << e.what () << '\n';
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}
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catch (...)
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{
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MessageBox::critical_message (nullptr, "Unexpected fatal error");
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std::cerr << "Unexpected fatal error\n";
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throw; // hoping the runtime might tell us more about the exception
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}
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return -1;
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}
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