build: trial version target

builds now app and trail target, lib_gui added, istrail function

src/lib_gui/qt/view/QtViewWidgetWrapper.cpp

@@ -0,0 +1,37 @@
+#include "qt/view/QtViewWidgetWrapper.h"
+
+#include "component/view/View.h"
+#include "utility/logging/logging.h"
+
+QWidget* QtViewWidgetWrapper::getWidgetOfView(const View* view)
+{
+	QtViewWidgetWrapper* widgetWrapper = dynamic_cast<QtViewWidgetWrapper*>(view->getWidgetWrapper());
+
+	if (!widgetWrapper)
+	{
+		LOG_ERROR("Trying to get the qt widget of non qt view.");
+		return nullptr;
+	}
+
+	if (!widgetWrapper->getWidget())
+	{
+		LOG_ERROR("The QtViewWidgetWrapper is not holdling a QWidget.");
+		return nullptr;
+	}
+
+	return widgetWrapper->getWidget();
+}
+
+QtViewWidgetWrapper::QtViewWidgetWrapper(QWidget* widget)
+	: m_widget(widget)
+{
+}
+
+QtViewWidgetWrapper::~QtViewWidgetWrapper()
+{
+}
+
+QWidget* QtViewWidgetWrapper::getWidget()
+{
+	return m_widget;
+}