WSJT-X/main.cpp
Bill Somerville a51c5c4251 Reintegrate Joe's experimental VHF & up features
As at ^/branches/wsjtx_exp@5271



git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@5272 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2015-04-22 17:48:03 +00:00

213 lines
7.4 KiB
C++

#include <iostream>
#include <exception>
#include <stdexcept>
#include <string>
#include <locale.h>
#include <QApplication>
#include <QRegularExpression>
#include <QObject>
#include <QSettings>
#include <QLibraryInfo>
#include <QSysInfo>
#include <QDir>
#include <QStandardPaths>
#include <QStringList>
#include <QMessageBox>
#include <QLockFile>
#if QT_VERSION >= 0x050200
#include <QCommandLineParser>
#include <QCommandLineOption>
#endif
#include "revision_utils.hpp"
#include "SettingsGroup.hpp"
#include "TraceFile.hpp"
#include "mainwindow.h"
int main(int argc, char *argv[])
{
// Multiple instances:
QSharedMemory mem_jt9;
QApplication a(argc, argv);
try
{
setlocale (LC_NUMERIC, "C"); // ensure number forms are in
// consistent format, do this after
// instantiating QApplication so
// that GUI has correct l18n
// Override programs executable basename as application name.
a.setApplicationName ("WSJT-X");
a.setApplicationVersion (version ());
bool multiple {false};
#if QT_VERSION >= 0x050200
QCommandLineParser parser;
parser.setApplicationDescription ("\nJT65A & JT9 Weak Signal Communications Program.");
auto help_option = parser.addHelpOption ();
auto version_option = parser.addVersionOption ();
// support for multiple instances running from a single installation
QCommandLineOption rig_option (QStringList {} << "r" << "rig-name"
, a.translate ("main", "Where <rig-name> is for multi-instance support.")
, a.translate ("main", "rig-name"));
parser.addOption (rig_option);
QCommandLineOption test_option (QStringList {} << "test-mode"
, a.translate ("main", "Writable files in test location. Use with caution, for testing only."));
parser.addOption (test_option);
if (!parser.parse (a.arguments ()))
{
QMessageBox::critical (nullptr, a.applicationName (), parser.errorText ());
return -1;
}
else
{
if (parser.isSet (help_option))
{
QMessageBox::information (nullptr, a.applicationName (), parser.helpText ());
return 0;
}
else if (parser.isSet (version_option))
{
QMessageBox::information (nullptr, a.applicationName (), a.applicationVersion ());
return 0;
}
}
QStandardPaths::setTestModeEnabled (parser.isSet (test_option));
// support for multiple instances running from a single installation
if (parser.isSet (rig_option) || parser.isSet (test_option))
{
auto temp_name = parser.value (rig_option);
if (!temp_name.isEmpty ())
{
if (temp_name.contains (QRegularExpression {R"([\\/,])"}))
{
std::cerr << QObject::tr ("Invalid rig name - \\ & / not allowed").toLocal8Bit ().data () << std::endl;
parser.showHelp (-1);
}
a.setApplicationName (a.applicationName () + " - " + temp_name);
}
if (parser.isSet (test_option))
{
a.setApplicationName (a.applicationName () + " - test");
}
multiple = true;
}
// disallow multiple instances with same instance key
QLockFile instance_lock {QDir {QStandardPaths::writableLocation (QStandardPaths::TempLocation)}.absoluteFilePath (a.applicationName () + ".lock")};
instance_lock.setStaleLockTime (0);
auto ok = false;
while (!(ok = instance_lock.tryLock ()))
{
if (QLockFile::LockFailedError == instance_lock.error ())
{
auto button = QMessageBox::question (nullptr
, QApplication::applicationName ()
, QObject::tr ("Another instance may be running, try to remove stale lock file?")
, QMessageBox::Yes | QMessageBox::Retry | QMessageBox::No
, QMessageBox::Yes);
switch (button)
{
case QMessageBox::Yes:
instance_lock.removeStaleLockFile ();
break;
case QMessageBox::Retry:
break;
default:
throw std::runtime_error {"Multiple instances must have unique rig names"};
}
}
}
#endif
auto config_directory = QStandardPaths::writableLocation (QStandardPaths::ConfigLocation);
QDir config_path {config_directory}; // will be "." if config_directory is empty
if (!config_path.mkpath ("."))
{
throw std::runtime_error {"Cannot find a usable configuration path \"" + config_path.path ().toStdString () + '"'};
}
auto settings_file = config_path.absoluteFilePath (a.applicationName () + ".ini");
QSettings settings(settings_file, QSettings::IniFormat);
if (!settings.isWritable ())
{
throw std::runtime_error {QString {"Cannot access \"%1\" for writing"}.arg (settings_file).toStdString ()};
}
#if WSJT_QDEBUG_TO_FILE
// // open a trace file
TraceFile trace_file {QDir {QStandardPaths::writableLocation (QStandardPaths::TempLocation)}.absoluteFilePath (a.applicationName () + "_trace.log")};
// announce to trace file
qDebug () << program_title (revision ()) + " - Program startup";
#endif
// Create and initialize shared memory segment
// Multiple instances: use rig_name as shared memory key
mem_jt9.setKey(a.applicationName ());
if(!mem_jt9.attach()) {
if (!mem_jt9.create(sizeof(jt9com_))) {
QMessageBox::critical (nullptr, "Error", "Unable to create shared memory segment.");
exit(1);
}
}
char *to = (char*)mem_jt9.data();
int size=sizeof(jt9com_);
if(jt9com_.newdat==0) {
}
memset(to,0,size); //Zero all decoding params in shared memory
unsigned downSampleFactor;
{
SettingsGroup {&settings, "Tune"};
// deal with Windows Vista and earlier input audio rate
// converter problems
downSampleFactor = settings.value ("Audio/DisableInputResampling",
#if defined (Q_OS_WIN)
// default to true for
// Windows Vista and older
QSysInfo::WV_VISTA >= QSysInfo::WindowsVersion ? true : false
#else
false
#endif
).toBool () ? 1u : 4u;
}
MainWindow w(multiple, &settings, &mem_jt9, downSampleFactor);
w.show();
QObject::connect (&a, SIGNAL (lastWindowClosed()), &a, SLOT (quit()));
return a.exec();
}
catch (std::exception const& e)
{
QMessageBox::critical (nullptr, a.applicationName (), e.what ());
std::cerr << "Error: " << e.what () << '\n';
}
catch (...)
{
QMessageBox::critical (nullptr, a.applicationName (), QObject::tr ("Unexpected error"));
std::cerr << "Unexpected error\n";
throw; // hoping the runtime might tell us more about the exception
}
return -1;
}