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Gallery example: Brush up the .cpp file 

Use modern string literals and replace #if-defery by a check on
QOperatingSystemVersion::currentType().

Pick-to: 6.10 6.9
Change-Id: I319b6c7665a4c4cadd7d1e711d8527f79ca35261
Reviewed-by: Mitch Curtis <mitch.curtis@qt.io>
This commit is contained in:
Friedemann Kleint 2025-09-09 10:51:11 +02:00
parent 130d46f2c7
commit a6da6b3aca
1 changed files with 29 additions and 23 deletions
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52
examples/quickcontrols/gallery/gallery.cpp
View File

@ -1,51 +1,57 @@
// Copyright (C) 2017 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#include <QGuiApplication>
#include <QQuickStyle>
#include <QQmlApplicationEngine>
#include <QQmlContext>
#include <QSettings>
#include <QQuickStyle>
#include <QGuiApplication>
#include <QIcon>
#include <QSettings>
#include <QOperatingSystemVersion>
using namespace Qt::StringLiterals;
static constexpr auto styleKey = "style"_L1;
int main(int argc, char *argv[])
{
QGuiApplication::setApplicationName("Gallery");
QGuiApplication::setOrganizationName("QtProject");
QCoreApplication::setApplicationName("Gallery"_L1);
QCoreApplication::setOrganizationName("QtProject"_L1);
QGuiApplication app(argc, argv);
QIcon::setThemeName("gallery");
QIcon::setThemeName("gallery"_L1);
QSettings settings;
if (qEnvironmentVariableIsEmpty("QT_QUICK_CONTROLS_STYLE"))
QQuickStyle::setStyle(settings.value("style").toString());
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("style").toString();
const QString styleInSettings = settings.value(styleKey).toString();
if (styleInSettings.isEmpty())
settings.setValue(QLatin1String("style"), QQuickStyle::name());
settings.setValue(styleKey, QQuickStyle::name());
QQmlApplicationEngine engine;
QStringList builtInStyles = { QLatin1String("Basic"), QLatin1String("Fusion"),
QLatin1String("Imagine"), QLatin1String("Material"), QLatin1String("Universal"),
QLatin1String("FluentWinUI3") };
#if defined(Q_OS_MACOS)
builtInStyles << QLatin1String("macOS");
builtInStyles << QLatin1String("iOS");
#elif defined(Q_OS_IOS)
builtInStyles << QLatin1String("iOS");
#elif defined(Q_OS_WINDOWS)
builtInStyles << QLatin1String("Windows");
#endif
QStringList builtInStyles = { "Basic"_L1, "Fusion"_L1, "Imagine"_L1,
"Material"_L1, "Universal"_L1, "FluentWinUI3"_L1 };
engine.setInitialProperties({{ "builtInStyles", builtInStyles }});
engine.load(QUrl("qrc:/gallery.qml"));
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 app.exec();
return QCoreApplication::exec();
}