From 88f835d3895d8682f909f170e9b519d5daf0ff04 Mon Sep 17 00:00:00 2001
From: brausjonas <47791011+jonasbraus@users.noreply.github.com>
Date: Wed, 26 Oct 2022 12:08:36 +0200
Subject: [PATCH] Example for including OpenGL in a java swing project

---
 Rendr/src/EngineTest/SwingTest.java        | 95 ++++++++++++++++++++++
 Rendr/src/RenderEngine/DisplayManager.java | 14 ++++
 2 files changed, 109 insertions(+)
 create mode 100644 Rendr/src/EngineTest/SwingTest.java

diff --git a/Rendr/src/EngineTest/SwingTest.java b/Rendr/src/EngineTest/SwingTest.java
new file mode 100644
index 0000000..0618480
--- /dev/null
+++ b/Rendr/src/EngineTest/SwingTest.java
@@ -0,0 +1,95 @@
+package EngineTest;
+
+import Entity.Camera;
+import Entity.Entity;
+import Models.RawModel;
+import Models.TexturedModel;
+import RenderEngine.DisplayManager;
+import RenderEngine.Loader;
+import RenderEngine.Renderer;
+import Shaders.StaticShader;
+import Textures.ModelTexture;
+import Tools.Axis;
+import Tools.OBJLoader;
+import Tools.Space;
+import org.lwjgl.input.Keyboard;
+import org.lwjgl.input.Mouse;
+import org.lwjgl.opengl.Display;
+import org.lwjgl.util.vector.Vector3f;
+
+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+
+public class SwingTest
+{
+    public static void main(String[] args)
+    {
+        new SwingTest();
+    }
+
+    private Canvas canvas;
+    private JFrame frame;
+    private JPanel leftPanel;
+    private JPanel centerPanel;
+
+    public SwingTest()
+    {
+        frame = new JFrame();
+        frame.setSize(1600, 900);
+        frame.setLocationRelativeTo(null);
+        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+        frame.setLayout(new BorderLayout());
+
+        canvas = new Canvas();
+
+        canvas.setIgnoreRepaint(true);
+        canvas.setPreferredSize(new Dimension(800, 600));
+        canvas.setMinimumSize(new Dimension(320, 240));
+        canvas.setVisible(true);
+
+        leftPanel = new JPanel();
+        centerPanel = new JPanel();
+
+        centerPanel.add(canvas);
+
+        frame.add(leftPanel, BorderLayout.WEST);
+        frame.add(centerPanel, BorderLayout.CENTER);
+        frame.setVisible(true);
+
+        new Thread(new Runnable()
+        {
+            @Override
+            public void run()
+            {
+                includeGL();
+            }
+        }).start();
+    }
+
+    private void includeGL(){
+        DisplayManager.createDisplay("Redr", false);
+        DisplayManager.setDisplayParent(canvas);
+
+        Loader loader = new Loader();
+        StaticShader shader = new StaticShader();
+        Renderer renderer = new RenderEngine.Renderer(shader);
+
+        Camera camera = new Camera();
+
+        while(!Display.isCloseRequested())
+        {
+            renderer.prepare(0.2f, 0.2f, 0.2f);
+            shader.start();
+            shader.loadViewMatrix(camera);
+//            renderer.render(entity, shader);
+            shader.stop();
+            DisplayManager.updateDisplay();
+        }
+
+        shader.clear();
+        loader.clear();
+        DisplayManager.closeDisplay();
+    }
+}
diff --git a/Rendr/src/RenderEngine/DisplayManager.java b/Rendr/src/RenderEngine/DisplayManager.java
index 0923084..c547998 100644
--- a/Rendr/src/RenderEngine/DisplayManager.java
+++ b/Rendr/src/RenderEngine/DisplayManager.java
@@ -2,6 +2,9 @@ package RenderEngine;
 
 import org.lwjgl.LWJGLException;
 import org.lwjgl.opengl.*;
+import org.lwjgl.opengl.DisplayMode;
+
+import java.awt.*;
 
 public class DisplayManager
 {
@@ -75,4 +78,15 @@ public class DisplayManager
     {
         return Display.isFullscreen();
     }
+
+    public static void setDisplayParent(Canvas parent)
+    {
+        try
+        {
+            Display.setParent(parent);
+        } catch (LWJGLException e)
+        {
+            throw new RuntimeException(e);
+        }
+    }
 }