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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.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the QtDataVis3D API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef SURFACE3DRENDERER_P_H
+#define SURFACE3DRENDERER_P_H
+
+#include "datavis3dglobal_p.h"
+#include <QtCore/QSize>
+#include <QtCore/QObject>
+#include <QtGui/QOpenGLFunctions>
+#include <QtGui/QFont>
+#include <QWindow>
+
+class QOpenGLShaderProgram;
+
+QT_DATAVIS3D_BEGIN_NAMESPACE
+
+class ShaderHelper;
+class ObjectHelper;
+class Theme;
+class Drawer;
+class Surface3dController;
+class CameraHelper;
+
+class QT_DATAVIS3D_EXPORT Surface3dRenderer : public QObject, protected QOpenGLFunctions
+{
+    Q_OBJECT
+
+public:
+    enum MousePressType {
+        MouseNone = 0,
+        MouseOnScene,
+        MouseOnOverview,
+        MouseOnZoom,
+        MouseRotating,
+        MouseOnPinch
+    };
+
+    Surface3dController *m_controller;
+
+    // Interaction related parameters
+    MousePressType m_mousePressed;
+    QPoint m_mousePos;
+    SelectionMode m_selectionMode;
+
+    // Visual parameters
+    QRect m_boundingRect;
+    Theme *m_theme;
+    LabelTransparency m_labelTransparency;
+    QFont m_font;
+    bool m_hasNegativeValues;
+
+    CameraHelper *m_camera;
+
+private:
+    QRect m_mainViewPort;
+    QRect m_sliceViewPort;
+    bool m_isInitialized;
+    ObjectHelper *m_backgroundObj;
+
+    Drawer *m_drawer;
+
+public:
+    explicit Surface3dRenderer(QRect rect, Surface3dController *controller);
+    ~Surface3dRenderer();
+
+    void initializeOpenGL();
+    void render(const GLuint defaultFboHandle = 0);
+
+    // Size
+    const QSize size();
+    const QRect boundingRect();
+    void setBoundingRect(const QRect boundingRect);
+    void setWidth(const int width);
+    int width();
+    void setHeight(const int height);
+    int height();
+    void setX(const int x);
+    int x();
+    void setY(const int y);
+    int y();
+
+#if defined(Q_OS_ANDROID)
+    void mouseDoubleClickEvent(QMouseEvent *event);
+    void touchEvent(QTouchEvent *event);
+#endif
+    void mousePressEvent(QMouseEvent *event, const QPoint &mousePos);
+    void mouseReleaseEvent(QMouseEvent *event, const QPoint &mousePos);
+    void mouseMoveEvent(QMouseEvent *event, const QPoint &mousePos);
+    void wheelEvent(QWheelEvent *event);
+    void resizeNotify();
+
+    void loadBackgroundMesh();
+
+private:
+    void drawScene(const GLuint defaultFboHandle);
+    Q_DISABLE_COPY(Surface3dRenderer)
+};
+
+QT_DATAVIS3D_END_NAMESPACE
+
+#endif // SURFACE3DRENDERER_P_H