feat: add opengl widget

CMakeLists.txt

@@ -12,7 +12,7 @@ project(enzo_project)
 
 
 # qt
-find_package(Qt6 REQUIRED COMPONENTS Core Widgets SvgWidgets)
+find_package(Qt6 REQUIRED COMPONENTS Core Widgets SvgWidgets OpenGLWidgets)
 qt_standard_project_setup()
 
 
@@ -31,7 +31,7 @@ qt_add_executable(${AppExec}
     src/gui/network/NodeIconGraphic.cpp
 )
 
-target_link_libraries(${AppExec} PRIVATE Qt6::Core Qt6::Widgets Qt6::SvgWidgets)
+target_link_libraries(${AppExec} PRIVATE Qt6::Core Qt6::Widgets Qt6::SvgWidgets Qt6::OpenGLWidgets)
 target_include_directories(${AppExec} PUBLIC src)
 
 # tests

src/gui/viewport/OpenGLWidget.h

@@ -0,0 +1,31 @@
+#include <QOpenGLWidget>
+#include <QOpenGLFunctions>
+
+class MyGLWidget : public QOpenGLWidget
+{
+public:
+    MyGLWidget(QWidget *parent) : QOpenGLWidget(parent) { }
+
+protected:
+    void initializeGL() override
+    {
+        // Set up the rendering context, load shaders and other resources, etc.:
+        QOpenGLFunctions *f = QOpenGLContext::currentContext()->functions();
+        f->glClearColor(0.16f, 0.16f, 0.16f, 1.0f);
+    }
+
+    void resizeGL(int w, int h) override
+    {
+        // // Update projection matrix and other size related settings:
+        // m_projection.setToIdentity();
+        // m_projection.perspective(45.0f, w / float(h), 0.01f, 100.0f);
+    }
+
+    void paintGL() override
+    {
+        // Draw the scene:
+        QOpenGLFunctions *f = QOpenGLContext::currentContext()->functions();
+        f->glClear(GL_COLOR_BUFFER_BIT);
+    }
+
+};

src/gui/viewport/Viewport.cpp

@@ -0,0 +1,14 @@
+#include "gui/viewport/Viewport.h"
+#include <qboxlayout.h>
+#include <qpushbutton.h>
+
+Viewport::Viewport(QWidget *parent, Qt::WindowFlags f)
+: QWidget(parent, f)
+{
+    mainLayout_=new QVBoxLayout();
+    openGLWidget_ = new MyGLWidget(this);
+    mainLayout_->addWidget(openGLWidget_);
+
+    setLayout(mainLayout_);
+}
+

src/gui/viewport/Viewport.h

@@ -1,8 +1,15 @@
 #pragma once
+#include <qboxlayout.h>
 #include <qwidget.h>
+#include "gui/viewport/OpenGLWidget.h"
 
 class Viewport
 : public QWidget
 {
+public:
+    Viewport(QWidget *parent = nullptr, Qt::WindowFlags f = Qt::WindowFlags());
+private:
+    QVBoxLayout* mainLayout_;
+    MyGLWidget* openGLWidget_;
 
 };