Adds a canvas based on the JOGL SWT heavyweight GLCanvas into Ardor3D

2 files changed, 147 insertions, 0 deletions

diff --git a/ardor3d-jogl/src/main/java/com/ardor3d/framework/jogl/JoglSwtCanvas.java b/ardor3d-jogl/src/main/java/com/ardor3d/framework/jogl/JoglSwtCanvas.java
new file mode 100644
index 0000000..a659d49
--- /dev/null
+++ b/ardor3d-jogl/src/main/java/com/ardor3d/framework/jogl/JoglSwtCanvas.java
@@ -0,0 +1,105 @@
+/**
+ * Copyright (c) 2008-2014 Ardor Labs, Inc.
+ *
+ * This file is part of Ardor3D.
+ *
+ * Ardor3D is free software: you can redistribute it and/or modify it 
+ * under the terms of its license which may be found in the accompanying
+ * LICENSE file or at <http://www.ardor3d.com/LICENSE>.
+ */
+
+package com.ardor3d.framework.jogl;
+
+import java.util.concurrent.CountDownLatch;
+
+import javax.media.opengl.GLAutoDrawable;
+import javax.media.opengl.GLRunnable;
+
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Display;
+
+import com.ardor3d.annotation.MainThread;
+import com.ardor3d.framework.Canvas;
+import com.ardor3d.framework.DisplaySettings;
+import com.jogamp.opengl.swt.GLCanvas;
+
+/**
+ * Ardor3D JOGL SWT heavyweight canvas, SWT control for the OpenGL rendering of Ardor3D with JOGL that supports the SWT
+ * input system directly and its abstraction in Ardor3D (com.ardor3d.input.swt)
+ */
+public class JoglSwtCanvas extends GLCanvas implements Canvas {
+
+    private final JoglCanvasRenderer _canvasRenderer;
+    private boolean _inited = false;
+
+    private final DisplaySettings _settings;
+
+    private final JoglDrawerRunnable _drawerGLRunnable;
+
+    private final JoglSwtInitializerRunnable _initializerRunnable;
+
+    public JoglSwtCanvas(final DisplaySettings settings, final JoglCanvasRenderer canvasRenderer,
+            final Composite composite, final int style) {
+        this(settings, canvasRenderer, new CapsUtil(), composite, style);
+    }
+
+    public JoglSwtCanvas(final DisplaySettings settings, final JoglCanvasRenderer canvasRenderer,
+            final CapsUtil capsUtil, final Composite composite, final int style) {
+        super(composite, style, capsUtil.getCapsForSettings(settings), null);
+        _drawerGLRunnable = new JoglDrawerRunnable(canvasRenderer);
+        _initializerRunnable = new JoglSwtInitializerRunnable(this, settings);
+        _settings = settings;
+        _canvasRenderer = canvasRenderer;
+
+        setFocus();
+        setSize(_settings.getWidth(), _settings.getHeight());
+        setAutoSwapBufferMode(false);
+    }
+
+    @Override
+    @MainThread
+    public void init() {
+        if (_inited) {
+            return;
+        }
+
+        // if we aren't on SWT user interface thread
+        if (Display.getCurrent() == null) {
+            Display.getDefault().syncExec(_initializerRunnable);
+        } else {
+            _initializerRunnable.run();
+        }
+
+        _inited = isRealized();
+    }
+
+    @Override
+    public void draw(final CountDownLatch latch) {
+        if (!_inited) {
+            init();
+        }
+
+        if (isVisible()) {
+            invoke(true, _drawerGLRunnable);
+        }
+        if (latch != null) {
+            latch.countDown();
+        }
+    }
+
+    @Override
+    public JoglCanvasRenderer getCanvasRenderer() {
+        return _canvasRenderer;
+    }
+
+    public void setVSyncEnabled(final boolean enabled) {
+        invoke(true, new GLRunnable() {
+            @Override
+            public boolean run(final GLAutoDrawable glAutoDrawable) {
+                glAutoDrawable.getGL().setSwapInterval(enabled ? 1 : 0);
+                return false;
+            }
+        });
+    }
+
+}
diff --git a/ardor3d-jogl/src/main/java/com/ardor3d/framework/jogl/JoglSwtInitializerRunnable.java b/ardor3d-jogl/src/main/java/com/ardor3d/framework/jogl/JoglSwtInitializerRunnable.java
new file mode 100644
index 0000000..f580221
--- /dev/null
+++ b/ardor3d-jogl/src/main/java/com/ardor3d/framework/jogl/JoglSwtInitializerRunnable.java
@@ -0,0 +1,42 @@
+/**
+ * Copyright (c) 2008-2010 Ardor Labs, Inc.
+ *
+ * This file is part of Ardor3D.
+ *
+ * Ardor3D is free software: you can redistribute it and/or modify it 
+ * under the terms of its license which may be found in the accompanying
+ * LICENSE file or at <http://www.ardor3d.com/LICENSE>.
+ */
+
+package com.ardor3d.framework.jogl;
+
+import com.ardor3d.framework.DisplaySettings;
+
+public class JoglSwtInitializerRunnable implements Runnable {
+
+    private final JoglSwtCanvas _joglSwtCanvas;
+
+    private final DisplaySettings _settings;
+
+    public JoglSwtInitializerRunnable(final JoglSwtCanvas joglSwtCanvas, final DisplaySettings settings) {
+        _joglSwtCanvas = joglSwtCanvas;
+        _settings = settings;
+    }
+
+    @Override
+    public void run() {
+        // Make the window visible to realize the OpenGL surface.
+        _joglSwtCanvas.setVisible(true);
+        // Force the realization
+        _joglSwtCanvas.display();
+        if (_joglSwtCanvas.getDelegatedDrawable().isRealized()) {
+            // Request the focus here as it cannot work when the window is not visible
+            _joglSwtCanvas.setFocus();
+            // The OpenGL context has been created after the realization of the surface
+            _joglSwtCanvas.getCanvasRenderer().setContext(_joglSwtCanvas.getContext());
+            // As the canvas renderer knows the OpenGL context, it can be initialized
+            _joglSwtCanvas.getCanvasRenderer().init(_settings, true);
+        }
+    }
+
+}