diff -r ef2fc0210362 -r 90bd2c331703 qmlfrontend/hwengine.h
--- a/qmlfrontend/hwengine.h	Fri Dec 07 13:04:00 2018 +0100
+++ b/qmlfrontend/hwengine.h	Fri Dec 07 13:35:08 2018 +0100
@@ -8,25 +8,29 @@
 #include "game_config.h"
 
 class QQmlEngine;
-class PreviewImageProvider;
 class EngineInstance;
+class PreviewAcceptor;
 
 class HWEngine : public QObject {
   Q_OBJECT
 
   Q_PROPERTY(int previewHedgehogsCount READ previewHedgehogsCount NOTIFY
                  previewHedgehogsCountChanged)
+  Q_PROPERTY(PreviewAcceptor* previewAcceptor READ previewAcceptor WRITE
+                 setPreviewAcceptor NOTIFY previewAcceptorChanged)
 
  public:
-  explicit HWEngine(QQmlEngine* engine, QObject* parent = nullptr);
+  explicit HWEngine(QObject* parent = nullptr);
   ~HWEngine();
 
-  static void exposeToQML();
-
   Q_INVOKABLE void getPreview();
   Q_INVOKABLE EngineInstance* runQuickGame();
 
   int previewHedgehogsCount() const;
+  PreviewAcceptor* previewAcceptor() const;
+
+ public slots:
+  void setPreviewAcceptor(PreviewAcceptor* previewAcceptor);
 
  signals:
   void previewIsRendering();
@@ -34,12 +38,13 @@
   void previewHogCountChanged(int count);
   void gameFinished();
   void previewHedgehogsCountChanged(int previewHedgehogsCount);
+  void previewAcceptorChanged(PreviewAcceptor* previewAcceptor);
 
  private:
   QQmlEngine* m_engine;
-  PreviewImageProvider* m_previewProvider;
   GameConfig m_gameConfig;
   int m_previewHedgehogsCount;
+  PreviewAcceptor* m_previewAcceptor;
 };
 
 #endif  // HWENGINE_H