mirror of
https://github.com/crystalidea/qt6windows7.git
synced 2024-11-23 20:10:48 +08:00
84 lines
3.5 KiB
C++
84 lines
3.5 KiB
C++
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// Copyright (C) 2016 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
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#include <QtWidgets>
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#include "mainwidget.h"
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static void showHelp(QCommandLineParser &parser, const QString errorMessage = QString())
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{
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QString text;
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QTextStream str(&text);
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str << "<html><head/><body>";
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if (!errorMessage.isEmpty())
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str << "<p>" << errorMessage << "</p>";
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str << "<pre>" << parser.helpText() << "</pre></body></html>";
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QMessageBox box(errorMessage.isEmpty() ? QMessageBox::Information : QMessageBox::Warning,
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QGuiApplication::applicationDisplayName(), text,
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QMessageBox::Ok);
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box.setTextInteractionFlags(Qt::TextBrowserInteraction);
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box.exec();
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}
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int main(int argc, char *argv[])
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{
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QApplication app(argc, argv);
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QCoreApplication::setApplicationVersion(QT_VERSION_STR);
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QCoreApplication::setApplicationName(QStringLiteral("imagegestures"));
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QGuiApplication::setApplicationDisplayName(QStringLiteral("Image Gestures Example"));
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QCommandLineParser commandLineParser;
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const QCommandLineOption disablePanOption("no-pan", "Disable pan gesture");
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commandLineParser.addOption(disablePanOption);
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const QCommandLineOption disablePinchOption("no-pinch", "Disable pinch gesture");
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commandLineParser.addOption(disablePinchOption);
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const QCommandLineOption disableSwipeOption("no-swipe", "Disable swipe gesture");
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commandLineParser.addOption(disableSwipeOption);
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const QCommandLineOption helpOption = commandLineParser.addHelpOption();
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commandLineParser.addPositionalArgument(QStringLiteral("Directory"),
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QStringLiteral("Directory to display"));
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const QString description = QGuiApplication::applicationDisplayName()
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+ QLatin1String("\n\nEnable \"debug\" on the logging category \"qt.examples.imagegestures\" in order to\n"
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"in order to obtain verbose information about Qt's gesture event processing,\n"
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"for example by setting the environment variables QT_LOGGING_RULES to\n"
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"qt.examples.imagegestures.debug=true\n");
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commandLineParser.setApplicationDescription(description);
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commandLineParser.process(QCoreApplication::arguments());
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QStringList arguments = commandLineParser.positionalArguments();
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if (!arguments.isEmpty() && !QFileInfo(arguments.front()).isDir()) {
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showHelp(commandLineParser,
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QLatin1Char('"') + QDir::toNativeSeparators(arguments.front())
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+ QStringLiteral("\" is not a directory."));
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return -1;
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}
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QList<Qt::GestureType> gestures;
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if (!commandLineParser.isSet(disablePanOption))
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gestures << Qt::PanGesture;
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if (!commandLineParser.isSet(disablePinchOption))
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gestures << Qt::PinchGesture;
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if (!commandLineParser.isSet(disableSwipeOption))
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gestures << Qt::SwipeGesture;
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MainWidget w;
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w.grabGestures(gestures);
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w.show();
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if (arguments.isEmpty()) {
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const QStringList picturesLocations = QStandardPaths::standardLocations(QStandardPaths::PicturesLocation);
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const QString directory =
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QFileDialog::getExistingDirectory(&w, "Select image folder",
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picturesLocations.isEmpty() ? QString() : picturesLocations.front());
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if (directory.isEmpty())
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return 0;
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arguments.append(directory);
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}
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w.openDirectory(arguments.front());
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return app.exec();
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}
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