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/****************************************************************************
**
** Copyright (C) 2014 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
**
****************************************************************************/
//
// W A R N I N G
// -------------
//
// This file is not part of the QtDataVisualization 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 SURFACEOBJECT_P_H
#define SURFACEOBJECT_P_H
#include "datavisualizationglobal_p.h"
#include "abstractobjecthelper_p.h"
#include "qsurfacedataproxy.h"
#include <QRect>
QT_BEGIN_NAMESPACE_DATAVISUALIZATION
class SurfaceObject : public AbstractObjectHelper
{
public:
SurfaceObject();
~SurfaceObject();
void setUpData(const QSurfaceDataArray &dataArray, const QRect &space, GLfloat yRange,
GLfloat yMin, bool changeGeometry);
void setUpSmoothData(const QSurfaceDataArray &dataArray, const QRect &space, GLfloat yRange,
GLfloat yMin, bool changeGeometry);
void updateCoarseRow(const QSurfaceDataArray &dataArray, int rowIndex,
GLfloat yRange, GLfloat yMin);
void updateSmoothRow(const QSurfaceDataArray &dataArray, int startRow,
GLfloat yRange, GLfloat yMin);
void updateSmoothItem(const QSurfaceDataArray &dataArray, int row,
int column, GLfloat yRange, GLfloat yMin);
void updateCoarseItem(const QSurfaceDataArray &dataArray, int row,
int column, GLfloat yRange, GLfloat yMin);
void createSmoothIndices(int x, int y, int endX, int endY);
void createCoarseIndices(int x, int y, int columns, int rows);
void createSmoothGridlineIndices(int x, int y, int endX, int endY);
void createCoarseGridlineIndices(int x, int y, int endX, int endY);
void uploadBuffers();
GLuint gridElementBuf();
GLuint gridIndexCount();
QVector3D vertexAt(int column, int row);
private:
QVector3D normal(const QVector3D &a, const QVector3D &b, const QVector3D &c);
void createBuffers(const QVector<QVector3D> &vertices, const QVector<QVector2D> &uvs,
const QVector<QVector3D> &normals, const GLint *indices,
bool changeGeometry);
private:
enum SurfaceType {
SurfaceSmooth,
SurfaceFlat
};
int m_surfaceType;
int m_columns;
int m_rows;
GLuint m_gridElementbuffer;
GLuint m_gridIndexCount;
QVector<QVector3D> m_vertices;
QVector<QVector3D> m_normals;
};
QT_END_NAMESPACE_DATAVISUALIZATION
#endif
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