ProjectScene: Add engine property

Author: adazem009

ScratchCPPGui/projectscene.cpp

@@ -9,4 +9,18 @@ ProjectScene::ProjectScene(QQuickItem *parent)
 {
 }
 
+libscratchcpp::IEngine *ProjectScene::engine() const
+{
+    return m_engine;
+}
+
+void ProjectScene::setEngine(libscratchcpp::IEngine *newEngine)
+{
+    if (m_engine == newEngine)
+        return;
+
+    m_engine = newEngine;
+    emit engineChanged();
+}
+
 } // namespace scratchcppgui

ScratchCPPGui/projectscene.h

@@ -4,16 +4,31 @@
 
 #include <QQuickPaintedItem>
 
+namespace libscratchcpp
+{
+class IEngine;
+}
+
 namespace scratchcppgui
 {
 
 class ProjectScene : public QQuickItem
 {
         Q_OBJECT
         QML_ELEMENT
+        Q_PROPERTY(libscratchcpp::IEngine *engine READ engine WRITE setEngine NOTIFY engineChanged)
 
     public:
         ProjectScene(QQuickItem *parent = nullptr);
+
+        libscratchcpp::IEngine *engine() const;
+        void setEngine(libscratchcpp::IEngine *newEngine);
+
+    signals:
+        void engineChanged();
+
+    private:
+        libscratchcpp::IEngine *m_engine = nullptr;
 };
 
 } // namespace scratchcppgui