first commit

src/CMakeLists.txt

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+add_executable(helloworld main.cpp resources.qrc)
+target_link_libraries(helloworld Qt5::Quick Qt5::Qml Qt5::Gui Qt5::QuickControls2 Qt5::Widgets KF5::Kirigami2 KF5::I18n)

src/contents/ui/main.qml

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+import QtQuick 2.6
+import QtQuick.Controls 2.0 as Controls
+import QtQuick.Layouts 1.2
+import org.kde.kirigami 2.13 as Kirigami
+
+// Base element, provides basic features needed for all kirigami applications
+Kirigami.ApplicationWindow {
+    // ID provides unique identifier to reference this element
+    id: root
+
+    // Window title
+    // i18nc is useful for adding context for translators, also lets strings be changed for different languages
+    title: i18nc("@title:window", "Hello World")
+
+    // Initial page to be loaded on app load
+    pageStack.initialPage: Kirigami.Page {
+
+        Controls.Label {
+            // Center label horizontally and vertically within parent element
+            anchors.centerIn: parent
+            text: i18n("Hello World!")
+        }
+    }
+}

src/main.cpp

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+#include <QApplication>
+#include <QQmlApplicationEngine>
+#include <QtQml>
+#include <QUrl>
+#include <KLocalizedContext>
+#include <KLocalizedString>
+
+int main(int argc, char *argv[])
+{
+  QGuiApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
+  QApplication app(argc, argv);
+  KLocalizedString::setApplicationDomain("helloworld");
+  QCoreApplication::setOrganizationName(QStringLiteral("KDE"));
+  QCoreApplication::setOrganizationDomain(QStringLiteral("kde.org"));
+  QCoreApplication::setApplicationName(QStringLiteral("Hello World"));
+
+  QQmlApplicationEngine engine;
+
+  engine.rootContext()->setContextObject(new KLocalizedContext(&engine));
+  engine.load(QUrl(QStringLiteral("qrc:/main.qml")));
+
+  if (engine.rootObjects().isEmpty()) {
+    return -1;
+  }
+
+  return app.exec();
+}

src/resources.qrc

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+<RCC>
+    <qresource prefix="/">
+        <file alias="main.qml">contents/ui/main.qml</file>
+    </qresource>
+</RCC>