1 files changed, 169 insertions, 0 deletions
diff --git a/src/datavis3d/engine/q3dwindow.cpp b/src/datavis3d/engine/q3dwindow.cpp
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+++ b/src/datavis3d/engine/q3dwindow.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the QtDataVis3D module.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "q3dwindow.h"
+#include "q3dwindow_p.h"
+
+#include <QGuiApplication>
+
+#include <QOpenGLContext>
+#include <QOpenGLPaintDevice>
+#include <QPainter>
+
+#include <QDebug>
+
+QTCOMMERCIALDATAVIS3D_BEGIN_NAMESPACE
+
+Q3DWindow::Q3DWindow(QWindow *parent)
+    : QWindow(parent),
+      d_ptr(new Q3DWindowPrivate(this))
+{
+    setSurfaceType(QWindow::OpenGLSurface);
+    QSurfaceFormat surfaceFormat;
+    surfaceFormat.setDepthBufferSize(16);
+    surfaceFormat.setSamples(4);
+    surfaceFormat.setSwapBehavior(QSurfaceFormat::DoubleBuffer);
+    //surfaceFormat.setRenderableType(QSurfaceFormat::OpenGLES); // OpenGL crashes with ANGLE, comment out or define OpenGLES
+    setFormat(surfaceFormat);
+
+    create();
+
+    d_ptr->m_context->setFormat(requestedFormat());
+    d_ptr->m_context->create();
+#if !defined(Q_OS_MAC)
+    // These are required here for windows (and linux?), but cause errors on mac
+    d_ptr->m_context->makeCurrent(this);
+    initializeOpenGLFunctions();
+#endif
+    initialize();
+}
+
+Q3DWindow::~Q3DWindow()
+{
+}
+
+void Q3DWindow::initialize()
+{
+    qDebug() << "OpenGL version" << format().majorVersion() << format().minorVersion();
+    qDebug() << "OpenGL renderer" << format().renderableType();
+    //qDebug() << "OpenGL swapBehavior" << format().swapBehavior();
+    setAnimating(true);
+}
+
+void Q3DWindow::render()
+{
+}
+
+void Q3DWindow::renderLater()
+{
+    if (!d_ptr->m_updatePending) {
+        d_ptr->m_updatePending = true;
+        QCoreApplication::postEvent(this, new QEvent(QEvent::UpdateRequest));
+    }
+}
+
+bool Q3DWindow::event(QEvent *event)
+{
+    switch (event->type()) {
+    case QEvent::UpdateRequest:
+        renderNow();
+        return true;
+    default:
+        return QWindow::event(event);
+    }
+}
+
+void Q3DWindow::exposeEvent(QExposeEvent *event)
+{
+    Q_UNUSED(event);
+
+    if (isExposed())
+        renderNow();
+}
+
+void Q3DWindow::renderNow()
+{
+    if (!isExposed())
+        return;
+
+    static bool needsInit = true;
+
+    d_ptr->m_updatePending = false;
+
+    d_ptr->m_context->makeCurrent(this);
+
+    if (needsInit) {
+#if defined(Q_OS_MAC)
+        initializeOpenGLFunctions();
+#endif
+        initialize();
+        needsInit = false;
+    }
+
+    render();
+
+    d_ptr->m_context->swapBuffers(this);
+
+    if (d_ptr->m_animating)
+        renderLater();
+}
+
+void Q3DWindow::setAnimating(bool animating)
+{
+    d_ptr->m_animating = animating;
+
+    if (animating)
+        renderLater();
+}
+
+Q3DWindowPrivate::Q3DWindowPrivate(Q3DWindow *q)
+    : q_ptr(q),
+      m_updatePending(false),
+      m_animating(false),
+      m_context(new QOpenGLContext(q))
+{
+}
+
+Q3DWindowPrivate::~Q3DWindowPrivate()
+{
+}
+
+QTCOMMERCIALDATAVIS3D_END_NAMESPACE