qtdeclarative/examples/quickcontrols/gallery/gallery.cpp

58 lines
1.9 KiB
C++

// Copyright (C) 2017 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#include <QQuickStyle>
#include <QQmlApplicationEngine>
#include <QQmlContext>
#include <QGuiApplication>
#include <QIcon>
#include <QSettings>
#include <QOperatingSystemVersion>
using namespace Qt::StringLiterals;
static constexpr auto styleKey = "style"_L1;
int main(int argc, char *argv[])
{
QCoreApplication::setApplicationName("Gallery"_L1);
QCoreApplication::setOrganizationName("QtProject"_L1);
QGuiApplication app(argc, argv);
QIcon::setThemeName("gallery"_L1);
QSettings settings;
if (qEnvironmentVariableIsEmpty("QT_QUICK_CONTROLS_STYLE"))
QQuickStyle::setStyle(settings.value(styleKey).toString());
// If this is the first time we're running the application,
// we need to set a style in the settings so that the QML
// can find it in the list of built-in styles.
const QString styleInSettings = settings.value(styleKey).toString();
if (styleInSettings.isEmpty())
settings.setValue(styleKey, QQuickStyle::name());
QQmlApplicationEngine engine;
QStringList builtInStyles = { "Basic"_L1, "Fusion"_L1, "Imagine"_L1,
"Material"_L1, "Universal"_L1, "FluentWinUI3"_L1 };
if constexpr (QOperatingSystemVersion::currentType() == QOperatingSystemVersion::MacOS)
builtInStyles << "macOS"_L1 << "iOS"_L1;
else if constexpr (QOperatingSystemVersion::currentType() == QOperatingSystemVersion::IOS)
builtInStyles << "iOS"_L1;
else if constexpr (QOperatingSystemVersion::currentType() == QOperatingSystemVersion::Windows)
builtInStyles << "Windows"_L1;
engine.setInitialProperties({{ "builtInStyles"_L1, builtInStyles }});
engine.load(QUrl("qrc:/gallery.qml"_L1));
if (engine.rootObjects().isEmpty())
return -1;
return QCoreApplication::exec();
}