int main(int argc, char *argv[])
{
QApplication app(argc, argv);
QCoreApplication::setApplicationVersion(QT_VERSION_STR);
QCoreApplication::setApplicationName(QLatin1String("imagegestures"));
QStringList arguments = QApplication::arguments();
QString directory;
QList<Qt::GestureType> gestures;
gestures << Qt::PanGesture << Qt::PinchGesture << Qt::SwipeGesture;
for (int a = 1; a < arguments.size(); ++a) {
const QString &argument = arguments.at(a);
if (argument.startsWith(QLatin1Char('-'))) {
if (argument == QLatin1String("--no-pan"))
gestures.removeAll(Qt::PanGesture);
else if (argument == QLatin1String("--no-pinch"))
gestures.removeAll(Qt::PinchGesture);
else if (argument == QLatin1String("--no-swipe"))
gestures.removeAll(Qt::SwipeGesture);
else if (argument == QLatin1String("--verbose"))
ImageWidget::setVerbose(true);
else if (argument == QLatin1String("-h") || argument == QLatin1String("--help")) {
showHelp();
return 0;
} else {
showHelp(QLatin1String("Invalid option: ") + argument);
return 1;
}
} else
directory = argument;
}
MainWidget w;
w.grabGestures(gestures);
w.show();
if (directory.isEmpty()) {
const QString picturesLocation = QDesktopServices::storageLocation(QDesktopServices::PicturesLocation);
directory =
QFileDialog::getExistingDirectory(&w, "Select image folder",
picturesLocation.isEmpty() ? QString() : picturesLocation);
if (directory.isEmpty())
return 0;
}
w.openDirectory(directory);
return app.exec();
}
int main(int argc, char *argv[])
{
QApplication app(argc, argv);
QCoreApplication::setApplicationVersion(QT_VERSION_STR);
QCoreApplication::setApplicationName(QStringLiteral("imagegestures"));
QGuiApplication::setApplicationDisplayName(QStringLiteral("Image Gestures Example"));
QCommandLineParser commandLineParser;
const QCommandLineOption disablePanOption("no-pan", "Disable pan gesture");
commandLineParser.addOption(disablePanOption);
const QCommandLineOption disablePinchOption("no-pinch", "Disable pinch gesture");
commandLineParser.addOption(disablePinchOption);
const QCommandLineOption disableSwipeOption("no-swipe", "Disable swipe gesture");
commandLineParser.addOption(disableSwipeOption);
const QCommandLineOption helpOption = commandLineParser.addHelpOption();
commandLineParser.addPositionalArgument(QStringLiteral("Directory"),
QStringLiteral("Directory to display"));
const QString description = QGuiApplication::applicationDisplayName()
+ QLatin1String("\n\nEnable \"debug\" on the logging category \"qt.examples.imagegestures\" in order to\n"
"in order to obtain verbose information about Qt's gesture event processing,\n"
"for example by setting the environment variables QT_LOGGING_RULES to\n"
"qt.examples.imagegestures.debug=true\n");
commandLineParser.setApplicationDescription(description);
commandLineParser.process(QCoreApplication::arguments());
QStringList arguments = commandLineParser.positionalArguments();
if (!arguments.isEmpty() && !QFileInfo(arguments.front()).isDir()) {
showHelp(commandLineParser,
QLatin1Char('"') + QDir::toNativeSeparators(arguments.front())
+ QStringLiteral("\" is not a directory."));
return -1;
}
QList<Qt::GestureType> gestures;
if (!commandLineParser.isSet(disablePanOption))
gestures << Qt::PanGesture;
if (!commandLineParser.isSet(disablePinchOption))
gestures << Qt::PinchGesture;
if (!commandLineParser.isSet(disableSwipeOption))
gestures << Qt::SwipeGesture;
MainWidget w;
w.grabGestures(gestures);
w.show();
if (arguments.isEmpty()) {
const QStringList picturesLocations = QStandardPaths::standardLocations(QStandardPaths::PicturesLocation);
const QString directory =
QFileDialog::getExistingDirectory(&w, "Select image folder",
picturesLocations.isEmpty() ? QString() : picturesLocations.front());
if (directory.isEmpty())
return 0;
arguments.append(directory);
}
w.openDirectory(arguments.front());
return app.exec();
}