Initial commit.

src/main.rs

@@ -0,0 +1,90 @@
+// SPDX-FileCopyrightText: 2025 Klarälvdalens Datakonsult AB, a KDAB Group company <info@kdab.com>
+// SPDX-FileContributor: Leon Matthes <leon.matthes@kdab.com>
+//
+// SPDX-License-Identifier: MIT OR Apache-2.0
+
+#[cxx_qt::bridge]
+mod qobject {
+    unsafe extern "C++" {
+        include!("cxx-qt-lib/qstring.h");
+        type QString = cxx_qt_lib::QString;
+    }
+
+    #[qenum(Greeter)]
+    pub enum Language {
+        English,
+        German,
+        French,
+    }
+
+    #[qenum(Greeter)]
+    pub enum Greeting {
+        Hello,
+        Bye,
+    }
+
+    unsafe extern "RustQt" {
+        #[qobject]
+        #[qml_element]
+        #[qproperty(Greeting, greeting)]
+        #[qproperty(Language, language)]
+        type Greeter = super::GreeterRust;
+
+        #[qinvokable]
+        fn greet(self: &Greeter) -> QString;
+    }
+}
+
+use qobject::*;
+
+impl Greeting {
+    fn translate(&self, language: Language) -> String {
+        match (self, language) {
+            (&Greeting::Hello, Language::English) => "Hello, World!",
+            (&Greeting::Hello, Language::German) => "Hallo, Welt!",
+            (&Greeting::Hello, Language::French) => "Bonjour, le monde!",
+            (&Greeting::Bye, Language::English) => "Bye!",
+            (&Greeting::Bye, Language::German) => "Auf Wiedersehen!",
+            (&Greeting::Bye, Language::French) => "Au revoir!",
+            _ => "🤯",
+        }
+            .to_string()
+    }
+}
+
+pub struct GreeterRust {
+    greeting: Greeting,
+    language: Language,
+}
+
+impl Default for GreeterRust {
+    fn default() -> Self {
+        Self {
+            greeting: Greeting::Hello,
+            language: Language::English,
+        }
+    }
+}
+
+use cxx_qt_lib::QString;
+
+impl qobject::Greeter {
+    fn greet(&self) -> QString {
+        QString::from(self.greeting.translate(self.language))
+    }
+}
+
+fn main() {
+    use cxx_qt_lib::{QGuiApplication, QQmlApplicationEngine, QUrl};
+
+    let mut app = QGuiApplication::new();
+    let mut engine = QQmlApplicationEngine::new();
+
+    if let Some(engine) = engine.as_mut() {
+        engine.load(&QUrl::from("qml/main.qml"));
+    }
+
+    if let Some(app) = app.as_mut() {
+        app.exec();
+    }
+}