Add support for open with on MacOS

src/application.cpp

@@ -0,0 +1,19 @@
+#include "application.h"
+
+#include <QFileOpenEvent>
+
+Application::Application(int &argc, char **argv) : QApplication(argc, argv)
+{
+}
+
+bool Application::event(QEvent *event)
+{
+    if (event->type() == QEvent::FileOpen) {
+        QFileOpenEvent *openEvent = static_cast<QFileOpenEvent *>(event);
+        emit openFileEvent(openEvent->file());
+    }
+
+    return QApplication::event(event);
+}
+
+