From d9ffbb1b6cb0862461e278df080bf0ede39e1c0e Mon Sep 17 00:00:00 2001
From: Benjamin Kraft <benjamin.kraft@online.de>
Date: Wed, 2 Feb 2022 22:44:50 +0100
Subject: [PATCH] opengl basics

---
 CMakeLists.txt         |  4 ++--
 headers/MainWindow.h   |  6 +++---
 headers/OutputWidget.h | 14 +++++++++++++-
 src/MainWindow.cpp     | 18 ++++++++----------
 src/OutputWidget.cpp   | 32 ++++++++++++++++++++++++++++++++
 5 files changed, 58 insertions(+), 16 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8dc192e..97af436 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -12,7 +12,7 @@ find_package(Qt6 COMPONENTS
         Core
         Gui
         Widgets
-        OpenGL
+        OpenGLWidgets
         REQUIRED)
 
 file(GLOB_RECURSE SOURCE_FILES src/**.cpp)
@@ -23,5 +23,5 @@ target_link_libraries(Mandelbrot
         Qt::Core
         Qt::Gui
         Qt::Widgets
-        Qt::OpenGL
+        Qt::OpenGLWidgets
         )
\ No newline at end of file
diff --git a/headers/MainWindow.h b/headers/MainWindow.h
index 29558fb..1007800 100644
--- a/headers/MainWindow.h
+++ b/headers/MainWindow.h
@@ -6,9 +6,9 @@
 class MainWindow : public QWidget {
 	Q_OBJECT
 public:
-	explicit MainWindow(QWidget *parent = nullptr);
-public slots:
-	void sizeChanged(int newValue);
+	explicit MainWindow();
+private slots:
+	void sizeSliderChanged(int);
 private:
 	void buildUI();
 
diff --git a/headers/OutputWidget.h b/headers/OutputWidget.h
index 8a8f5db..d34bfdb 100644
--- a/headers/OutputWidget.h
+++ b/headers/OutputWidget.h
@@ -3,9 +3,21 @@
 
 
 #include <QWidget>
+#include <QOpenGLFunctions>
+#include <QOpenGLWidget>
 
-class OutputWidget : public QWidget{
+class OutputWidget : public QOpenGLWidget, protected QOpenGLFunctions {
+	Q_OBJECT
+private:
+	void initializeGL() override;
+	void paintGL() override;
+	void resizeGL(int, int) override;
 
+	void wheelEvent(QWheelEvent*) override;
+	void mouseMoveEvent(QMouseEvent*) override;
+	void mousePressEvent(QMouseEvent*) override;
+	void mouseReleaseEvent(QMouseEvent*) override;
+	void keyPressEvent(QKeyEvent*) override;
 };
 
 
diff --git a/src/MainWindow.cpp b/src/MainWindow.cpp
index 261c36e..61cdb5e 100644
--- a/src/MainWindow.cpp
+++ b/src/MainWindow.cpp
@@ -3,7 +3,7 @@
 #include <iostream>
 #include "../headers/MainWindow.h"
 
-MainWindow::MainWindow(QWidget *parent): QWidget(parent) {
+MainWindow::MainWindow() {
 	buildUI();
 }
 
@@ -11,20 +11,18 @@ void MainWindow::buildUI() {
 
 	auto sizeSlider = new QSlider(Qt::Horizontal);
 	sizeSlider->setRange(100, 800);
-	QSlider::connect(sizeSlider, &QSlider::valueChanged, this, &MainWindow::sizeChanged);
+	QSlider::connect(sizeSlider, &QSlider::valueChanged, this, &MainWindow::sizeSliderChanged);
 	sizeSlider->setValue(500);
 
 	auto controls = new QGridLayout;
 	controls->addWidget(sizeSlider);
 
-	QVBoxLayout lyt;
-
-	lyt.addWidget(outputWidget);
-	lyt.addLayout(controls);
-
-	setLayout(&lyt);
+	auto lyt = new QVBoxLayout(this);
+	lyt->addWidget(outputWidget);
+	lyt->addLayout(controls);
 }
 
-void MainWindow::sizeChanged(int newValue) {
-	std::cout << newValue << std::endl;
+//TODO Handle size change
+void MainWindow::sizeSliderChanged(int newValue) {
+
 }
diff --git a/src/OutputWidget.cpp b/src/OutputWidget.cpp
index 692a417..7eca312 100644
--- a/src/OutputWidget.cpp
+++ b/src/OutputWidget.cpp
@@ -1,2 +1,34 @@
 
 #include "../headers/OutputWidget.h"
+
+void OutputWidget::initializeGL() {
+
+}
+
+void OutputWidget::paintGL() {
+
+}
+
+void OutputWidget::resizeGL(int w, int h) {
+
+}
+
+void OutputWidget::wheelEvent(QWheelEvent *e) {
+
+}
+
+void OutputWidget::mouseMoveEvent(QMouseEvent *e) {
+
+}
+
+void OutputWidget::mousePressEvent(QMouseEvent *e) {
+
+}
+
+void OutputWidget::mouseReleaseEvent(QMouseEvent *e) {
+
+}
+
+void OutputWidget::keyPressEvent(QKeyEvent *e) {
+
+}