diff --git a/doric/doric.pro b/doric/doric.pro
index 3f113457..a523991c 100644
--- a/doric/doric.pro
+++ b/doric/doric.pro
@@ -1,4 +1,6 @@
-QT += quick
+QT += \
+    quick \
+    widgets
 
 CONFIG += c++11
 
@@ -53,6 +55,7 @@ HEADERS += \
     native/native_timer.h \
     plugin/shader_plugin.h \
     registry.h \
+    shader/layer.h \
     shader/super_node.h \
     shader/view_node.h \
     template/singleton.h \
diff --git a/doric/main.cpp b/doric/main.cpp
index fed8dade..929bf4bc 100644
--- a/doric/main.cpp
+++ b/doric/main.cpp
@@ -1,26 +1,19 @@
+#include <QApplication>
+#include <QDialog>
 #include <QFile>
-#include <QGuiApplication>
-#include <QQmlApplicationEngine>
 #include <QResource>
-#include <QTextStream>
 
 #include "context_manager.h"
 
 int main(int argc, char *argv[])
 {
-    QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
-
-    QGuiApplication app(argc, argv);
-
-    QQmlApplicationEngine engine;
-    const QUrl url(QStringLiteral("qrc:/doric/main.qml"));
-    QObject::connect(&engine, &QQmlApplicationEngine::objectCreated,
-                     &app, [url](QObject *obj, const QUrl &objUrl) {
-        if (!obj && url == objUrl)
-            QCoreApplication::exit(-1);
-    }, Qt::QueuedConnection);
-    engine.load(url);
-
+    QApplication app(argc, argv);
+    {
+        QWidget *widget = new QWidget(nullptr, Qt::WindowType::Window);
+        widget->setWindowTitle(QString("Hello Doric"));
+        widget->resize(360, 640);
+        widget->show();
+    }
     {
         QResource resource(":/doric/Snake.js");
         QFile *file = new QFile(resource.fileName());
diff --git a/doric/main.qml b/doric/main.qml
deleted file mode 100644
index 0c5a78dc..00000000
--- a/doric/main.qml
+++ /dev/null
@@ -1,23 +0,0 @@
-import QtQuick 2.6
-import QtQuick.Controls 2.13
-import QtQuick.Window 2.2
-
-Window {
-    visible: true
-    width: 360;
-    height: 640;
-    title: qsTr("Hello Doric");
-
-    StackView {
-        id: stack;
-        anchors.centerIn: parent;
-        initialItem: mainView;
-        width: 360;
-        height: 640;
-    }
-
-    Rectangle {
-        id: mainView;
-        color: "lightgreen";
-    }
-}
diff --git a/doric/qml.qrc b/doric/qml.qrc
index f3f83d85..6d00a767 100644
--- a/doric/qml.qrc
+++ b/doric/qml.qrc
@@ -1,6 +1,5 @@
 <RCC>
     <qresource prefix="/doric">
-        <file alias="main.qml">main.qml</file>
         <file alias="doric-sandbox.js">../../doric-js/bundle/doric-sandbox.js</file>
         <file alias="doric-lib.js">../../doric-js/bundle/doric-lib.js</file>
         <file alias="Snake.js">../../doric-demo/bundle/src/Snake.js</file>
diff --git a/doric/shader/layer.h b/doric/shader/layer.h
new file mode 100644
index 00000000..ad132aff
--- /dev/null
+++ b/doric/shader/layer.h
@@ -0,0 +1,10 @@
+#ifndef LAYER_H
+#define LAYER_H
+
+#include "QWidget"
+
+class Layer : public QWidget {
+
+};
+
+#endif // LAYER_H
diff --git a/doric/shader/view_node.h b/doric/shader/view_node.h
index 9e77b493..4441c1e3 100644
--- a/doric/shader/view_node.h
+++ b/doric/shader/view_node.h
@@ -1,11 +1,10 @@
 #ifndef VIEW_NODE_H
 #define VIEW_NODE_H
 
+#include <QDebug>
+
 #include "context_holder.h"
 
-using namespace std;
-
-template <typename V>
 class SuperNode;
 
 template <class T>
@@ -15,6 +14,7 @@ protected:
     T view;
 
 private:
+    SuperNode *superNode;
     QString *id;
 
 public: