public ImageViewerComponent(IViewerSetupHelper setupHelper)
{
Platform.CheckForNullReference(setupHelper, "setupHelper");
_setupHelper = setupHelper;
_setupHelper.SetImageViewer(this);
_shortcutManager = new ViewerShortcutManager(this);
_priorStudyLoader = new AsynchronousPriorStudyLoader(this, _setupHelper.GetPriorStudyFinder());
}