Module renamed

Task-number: QTRD-2224

Change-Id: Iec18b6121809300b11d85445281d3c626c434f35
Reviewed-by: Miikka Heikkinen <miikka.heikkinen@digia.com>

1 files changed, 164 insertions, 0 deletions

diff --git a/src/datavisualization/engine/q3dwindow.cpp b/src/datavisualization/engine/q3dwindow.cpp
new file mode 100644
index 00000000..4bd40b04
--- /dev/null
+++ b/src/datavisualization/engine/q3dwindow.cpp
@@ -0,0 +1,164 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc
+** All rights reserved.
+** For any questions to Digia, please use contact form at http://qt.digia.com
+**
+** This file is part of the QtDataVisualization module.
+**
+** Licensees holding valid Qt Enterprise licenses may use this file in
+** accordance with the Qt Enterprise License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.
+**
+** If you have questions regarding the use of this file, please use
+** contact form at http://qt.digia.com
+**
+****************************************************************************/
+
+#include "q3dwindow.h"
+#include "q3dwindow_p.h"
+
+#include <QGuiApplication>
+
+#include <QOpenGLContext>
+#include <QOpenGLPaintDevice>
+#include <QPainter>
+
+#include <QDebug>
+
+QT_DATAVISUALIZATION_BEGIN_NAMESPACE
+
+/*!
+ * \class Q3DWindow
+ * \inmodule QtDataVisualization
+ * \brief The Q3DWindow class provides a window and render loop.
+ * \since 1.0.0
+ *
+ * This class creates a QWindow and provides render loop for visualization types inheriting it.
+ * \warning This class is not intended to be used directly by developers.
+ *
+ * \sa Q3DBars, Q3DScatter, Q3DSurface, {Qt Data Visualization 3D C++ Classes}
+ */
+
+/*!
+ * Constructs Q3DWindow with \a parent. It creates a QWindow and an OpenGL context. It also sets
+ * surface format and initializes OpenGL functions for use.
+ */
+Q3DWindow::Q3DWindow(QWindow *parent)
+    : QWindow(parent),
+      d_ptr(new Q3DWindowPrivate(this))
+{
+    setSurfaceType(QWindow::OpenGLSurface);
+    QSurfaceFormat surfaceFormat;
+    surfaceFormat.setDepthBufferSize(16);
+#if !defined(QT_OPENGL_ES_2)
+    surfaceFormat.setSamples(8);
+    surfaceFormat.setRenderableType(QSurfaceFormat::OpenGL);
+#else
+    surfaceFormat.setRenderableType(QSurfaceFormat::OpenGLES);
+#endif
+    surfaceFormat.setSwapBehavior(QSurfaceFormat::DoubleBuffer);
+    setFormat(surfaceFormat);
+
+    create();
+
+    d_ptr->m_context->setFormat(requestedFormat());
+    d_ptr->m_context->create();
+    d_ptr->m_context->makeCurrent(this);
+
+    qDebug() << "initializeOpenGLFunctions()";
+    initializeOpenGLFunctions();
+
+    const GLubyte *version = glGetString(GL_VERSION);
+    qDebug() << "OpenGL version:" << (const char *)version;
+    version = glGetString(GL_SHADING_LANGUAGE_VERSION);
+    qDebug() << "GLSL version:" << (const char *)version;
+#if !defined(QT_OPENGL_ES_2)
+    // If we have real OpenGL, GLSL version must be 1.2 or over. Quit if not.
+    QStringList splitversionstr = QString::fromLatin1((const char *)version).split(QChar::fromLatin1(' '));
+    if (splitversionstr[0].toFloat() < 1.2)
+        qFatal("GLSL version must be 1.20 or higher. Try installing latest display drivers.");
+#endif
+    renderLater();
+}
+
+/*!
+ * Destroys Q3DWindow.
+ */
+Q3DWindow::~Q3DWindow()
+{
+}
+
+/*!
+ * \internal
+ */
+void Q3DWindow::render()
+{
+}
+
+/*!
+ * \internal
+ */
+void Q3DWindow::renderLater()
+{
+    if (!d_ptr->m_updatePending) {
+        d_ptr->m_updatePending = true;
+        QCoreApplication::postEvent(this, new QEvent(QEvent::UpdateRequest));
+    }
+}
+
+/*!
+ * \internal
+ */
+bool Q3DWindow::event(QEvent *event)
+{
+    switch (event->type()) {
+    case QEvent::UpdateRequest:
+        renderNow();
+        return true;
+    default:
+        return QWindow::event(event);
+    }
+}
+
+/*!
+ * \internal
+ */
+void Q3DWindow::exposeEvent(QExposeEvent *event)
+{
+    Q_UNUSED(event);
+
+    if (isExposed())
+        renderNow();
+}
+
+/*!
+ * \internal
+ */
+void Q3DWindow::renderNow()
+{
+    if (!isExposed())
+        return;
+
+    d_ptr->m_updatePending = false;
+
+    d_ptr->m_context->makeCurrent(this);
+
+    render();
+
+    d_ptr->m_context->swapBuffers(this);
+}
+
+Q3DWindowPrivate::Q3DWindowPrivate(Q3DWindow *q)
+    : q_ptr(q),
+      m_updatePending(false),
+      m_context(new QOpenGLContext(q))
+{
+}
+
+Q3DWindowPrivate::~Q3DWindowPrivate()
+{
+}
+
+QT_DATAVISUALIZATION_END_NAMESPACE