+
−#include "engine_instance.h"
+
−
+
−EngineInstance::EngineInstance(QObject *parent)
+
−    : QObject(parent), m_instance(Engine::start_engine()) {}
+
−
+
−EngineInstance::~EngineInstance() { Engine::cleanup(m_instance); }
+
−
+
−Engine::PreviewInfo EngineInstance::generatePreview() {
+
−  Engine::PreviewInfo pinfo;
+
−
+
−  Engine::generate_preview(m_instance, &pinfo);
+
−
+
−  return pinfo;
+
−}