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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 Q3DSCATTERRENDERER_P_H
#define Q3DSCATTERRENDERER_P_H
#include "datavisualizationglobal_p.h"
#include "scatter3dcontroller_p.h"
#include "abstract3drenderer_p.h"
#include "scatterrenderitem_p.h"
class QSizeF;
QT_BEGIN_NAMESPACE_DATAVISUALIZATION
class ShaderHelper;
class Q3DScene;
class ScatterSeriesRenderCache;
class QScatterDataItem;
class QT_DATAVISUALIZATION_EXPORT Scatter3DRenderer : public Abstract3DRenderer
{
Q_OBJECT
private:
// Internal state
ScatterRenderItem *m_selectedItem; // points to renderitem array
bool m_updateLabels;
ShaderHelper *m_dotShader;
ShaderHelper *m_dotGradientShader;
#if defined(QT_OPENGL_ES_2)
ShaderHelper *m_pointShader;
#endif
ShaderHelper *m_depthShader;
ShaderHelper *m_selectionShader;
ShaderHelper *m_backgroundShader;
ShaderHelper *m_labelShader;
GLuint m_bgrTexture;
GLuint m_depthTexture;
GLuint m_selectionTexture;
GLuint m_depthFrameBuffer;
GLuint m_selectionFrameBuffer;
GLuint m_selectionDepthBuffer;
GLfloat m_shadowQualityToShader;
GLint m_shadowQualityMultiplier;
GLfloat m_heightNormalizer;
GLfloat m_scaleFactor;
int m_selectedItemIndex;
ScatterSeriesRenderCache *m_selectedSeriesCache;
ScatterSeriesRenderCache *m_oldSelectedSeriesCache;
QSizeF m_areaSize;
GLfloat m_dotSizeScale;
bool m_hasHeightAdjustmentChanged;
ScatterRenderItem m_dummyRenderItem;
GLfloat m_backgroundMargin;
GLfloat m_maxItemSize;
int m_clickedIndex;
bool m_havePointSeries;
bool m_haveMeshSeries;
bool m_haveUniformColorMeshSeries;
bool m_haveGradientMeshSeries;
public:
explicit Scatter3DRenderer(Scatter3DController *controller);
~Scatter3DRenderer();
void updateData();
void updateSeries(const QList<QAbstract3DSeries *> &seriesList);
SeriesRenderCache *createNewCache(QAbstract3DSeries *series);
void updateItems(const QVector<Scatter3DController::ChangeItem> &items);
void updateScene(Q3DScene *scene);
QVector3D convertPositionToTranslation(const QVector3D &position, bool isAbsolute);
inline int clickedIndex() const { return m_clickedIndex; }
void resetClickedStatus();
void render(GLuint defaultFboHandle);
public slots:
void updateSelectedItem(int index, QScatter3DSeries *series);
protected:
virtual void initializeOpenGL();
private:
virtual void initShaders(const QString &vertexShader, const QString &fragmentShader);
virtual void initGradientShaders(const QString &vertexShader, const QString &fragmentShader);
virtual void updateShadowQuality(QAbstract3DGraph::ShadowQuality quality);
virtual void updateTextures();
virtual void fixMeshFileName(QString &fileName, QAbstract3DSeries::Mesh mesh);
void drawScene(GLuint defaultFboHandle);
void drawLabels(bool drawSelection, const Q3DCamera *activeCamera,
const QMatrix4x4 &viewMatrix, const QMatrix4x4 &projectionMatrix);
void loadBackgroundMesh();
void initSelectionShader();
void initBackgroundShaders(const QString &vertexShader, const QString &fragmentShader);
void initLabelShaders(const QString &vertexShader, const QString &fragmentShader);
void initSelectionBuffer();
#if !defined(QT_OPENGL_ES_2)
void initDepthShader();
void updateDepthBuffer();
#else
void initPointShader();
#endif
void calculateTranslation(ScatterRenderItem &item);
void calculateSceneScalingFactors();
void selectionColorToSeriesAndIndex(const QVector4D &color, int &index,
QAbstract3DSeries *&series);
inline void updateRenderItem(const QScatterDataItem &dataItem, ScatterRenderItem &renderItem);
Q_DISABLE_COPY(Scatter3DRenderer)
};
QT_END_NAMESPACE_DATAVISUALIZATION
#endif
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