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#include <QFile>

#include <QFileOpenEvent>

#include <QTranslator>

#include <QTextCodec>

#include <QLibraryInfo>

#include <QLocale>

#include <QDebug>

#include "Application.h"

#include "MainWindow.h"

#include "PreferencesDialog.h"

Application::Application(int& argc, char** argv) :

QApplication(argc, argv)

{

// Set organisation and application names

setOrganizationName("sqlitebrowser");

setApplicationName("DB Browser for SQLite");

// Set character encoding to UTF8

QTextCodec::setCodecForLocale(QTextCodec::codecForName("UTF-8"));

#if QT_VERSION < 0x050000

QTextCodec::setCodecForTr(QTextCodec::codecForName("UTF-8"));

QTextCodec::setCodecForCStrings(QTextCodec::codecForName("UTF-8"));

#endif

// Load translations

bool ok;

QString name = PreferencesDialog::getSettingsValue("General", "language").toString();

// First of all try to load the application translation file.

m_translatorApp = new QTranslator(this);

ok = m_translatorApp->load("sqlb_" + name,

QCoreApplication::applicationDirPath() + "/translations");

// If failed then try to load .qm file from resources

if (ok == false) {

ok = m_translatorApp->load("sqlb_" + name, ":/translations");

}

if (ok == true) {

PreferencesDialog::setSettingsValue("General", "language", name);

installTranslator(m_translatorApp);

// The application translation file has been found and loaded.

// And now try to load a Qt translation file.

// Search path:

// 1) standard Qt translations directory;

// 2) the application translations directory.

m_translatorQt = new QTranslator(this);

ok = m_translatorQt->load("qt_" + name,

QLibraryInfo::location(QLibraryInfo::TranslationsPath));

if (ok == false)

ok = m_translatorQt->load("qt_" + name, "translations");

if (ok == true)

installTranslator(m_translatorQt);

}

else {

// Set the correct locale so that the program won't erroneously detect

// a language change when the user toggles settings for the first time.

// (it also prevents the program from always looking for a translation on launch)

PreferencesDialog::setSettingsValue("General", "language", "en_US");

}

// Parse command line

QString fileToOpen;

QStringList sqlToExecute;

m_dontShowMainWindow = false;

for(int i=1;i<arguments().size();i++)

{

// Check next command line argument

if(arguments().at(i) == "-h" || arguments().at(i) == "--help")

{

// Help

qWarning() << qPrintable(tr("Usage: %1 [options] [db]\n").arg(argv[0]));

qWarning() << qPrintable(tr("Possible command line arguments:"));

qWarning() << qPrintable(tr(" -h, --help\t\tShow command line options"));

qWarning() << qPrintable(tr(" -s, --sql [file]\tExecute this SQL file after opening the DB"));

qWarning() << qPrintable(tr(" -q, --quit\t\tExit application after running scripts"));

qWarning() << qPrintable(tr(" [file]\t\tOpen this SQLite database"));

m_dontShowMainWindow = true;

} else if(arguments().at(i) == "-s" || arguments().at(i) == "--sql") {

// Run SQL file: If file exists add it to list of scripts to execute

if(++i >= arguments().size())

qWarning() << qPrintable(tr("The -s/--sql option requires an argument"));

else if(!QFile::exists(arguments().at(i)))

qWarning() << qPrintable(tr("The file %1 does not exist").arg(arguments().at(i)));

else

sqlToExecute.append(arguments().at(i));

} else if(arguments().at(i) == "-q" || arguments().at(i) == "--quit") {

m_dontShowMainWindow = true;

} else {

// Other: Check if it's a valid file name

if(QFile::exists(arguments().at(i)))

fileToOpen = arguments().at(i);

else

qWarning() << qPrintable(tr("Invalid option/non-existant file: %1").arg(arguments().at(i)));

}

// Show main window

m_mainWindow = new MainWindow();

m_mainWindow->show();

connect(this, SIGNAL(lastWindowClosed()), this, SLOT(quit()));

// Open database if one was specified

if(fileToOpen.size())

{

if(m_mainWindow->fileOpen(fileToOpen))

{

// If database could be opened run the SQL scripts

foreach(const QString& f, sqlToExecute)

{

QFile file(f);

if(file.open(QIODevice::ReadOnly))

{

m_mainWindow->getDb()->executeMultiSQL(file.readAll(), false, true);

file.close();

}

if(!sqlToExecute.isEmpty())

m_mainWindow->browseRefresh();

}

Application::~Application()

{

delete m_mainWindow;

}

bool Application::event(QEvent* event)

{

switch(event->type())

{

case QEvent::FileOpen:

m_mainWindow->fileOpen(static_cast<QFileOpenEvent*>(event)->file());

return true;

default:

return QApplication::event(event);

}