remove display lists and qt3d-ize overpainting/hellogl example

On the way to making opengl examples portable, remove display lists
and go to triangles only. Use QMatrix4x4. While on the job use Qt/3D
stylee to make the QtLogo as an example of 3D programming more Qt-like.

Reviewed-by: Rhys Weatherley

1 files changed, 67 insertions, 0 deletions

diff --git a/examples/opengl/shared/qtlogo.h b/examples/opengl/shared/qtlogo.h
new file mode 100644
index 0000000..26508e1
--- /dev/null
+++ b/examples/opengl/shared/qtlogo.h
@@ -0,0 +1,67 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** 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, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QTLOGO_H
+#define QTLOGO_H
+
+#include <QObject>
+#include <QtOpenGL>
+
+class Patch;
+class Geometry;
+
+//! [0]
+class QtLogo : public QObject
+{
+public:
+    QtLogo(QObject *parent, int d = 64, qreal s = 1.0);
+    ~QtLogo();
+    void setColor(QColor c);
+    void draw() const;
+private:
+    void buildGeometry(int d, qreal s);
+
+    QList<Patch *> parts;
+    Geometry *geom;
+};
+//! [0]
+
+#endif // QTLOGO_H