| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the Qt Data Visualization module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:GPL$ |
| ** Commercial License Usage |
| ** Licensees holding valid commercial Qt licenses may use this file in |
| ** accordance with the commercial license agreement provided with the |
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| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 3 or (at your option) any later version |
| ** approved by the KDE Free Qt Foundation. The licenses are as published by |
| ** the Free Software Foundation and appearing in the file LICENSE.GPL3 |
| ** included in the packaging of this file. Please review the following |
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| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| // |
| // 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 Q3DBARSRENDERER_P_H |
| #define Q3DBARSRENDERER_P_H |
| |
| #include "datavisualizationglobal_p.h" |
| #include "bars3dcontroller_p.h" |
| #include "abstract3drenderer_p.h" |
| #include "barrenderitem_p.h" |
| |
| QT_BEGIN_NAMESPACE |
| class QPoint; |
| class QSizeF; |
| QT_END_NAMESPACE |
| |
| QT_BEGIN_NAMESPACE_DATAVISUALIZATION |
| |
| class ShaderHelper; |
| class LabelItem; |
| class Q3DScene; |
| class BarSeriesRenderCache; |
| |
| class QT_DATAVISUALIZATION_EXPORT Bars3DRenderer : public Abstract3DRenderer |
| { |
| Q_OBJECT |
| |
| private: |
| // Cached state based on emitted signals from the controller |
| QSizeF m_cachedBarThickness; |
| QSizeF m_cachedBarSpacing; |
| bool m_cachedIsSlicingActivated; |
| int m_cachedRowCount; |
| int m_cachedColumnCount; |
| |
| // Internal state |
| BarRenderItem *m_selectedBar; // points to renderitem array |
| AxisRenderCache *m_sliceCache; // not owned |
| const LabelItem *m_sliceTitleItem; // not owned |
| bool m_updateLabels; |
| ShaderHelper *m_barShader; |
| ShaderHelper *m_barGradientShader; |
| ShaderHelper *m_depthShader; |
| ShaderHelper *m_selectionShader; |
| ShaderHelper *m_backgroundShader; |
| GLuint m_bgrTexture; |
| GLuint m_selectionTexture; |
| GLuint m_depthFrameBuffer; |
| GLuint m_selectionFrameBuffer; |
| GLuint m_selectionDepthBuffer; |
| GLfloat m_shadowQualityToShader; |
| GLint m_shadowQualityMultiplier; |
| GLfloat m_heightNormalizer; |
| GLfloat m_gradientFraction; |
| GLfloat m_backgroundAdjustment; |
| GLfloat m_rowWidth; |
| GLfloat m_columnDepth; |
| GLfloat m_maxDimension; |
| GLfloat m_scaleX; |
| GLfloat m_scaleZ; |
| GLfloat m_scaleFactor; |
| GLfloat m_maxSceneSize; |
| QPoint m_visualSelectedBarPos; |
| QPoint m_selectedBarPos; |
| BarSeriesRenderCache *m_selectedSeriesCache; |
| BarRenderItem m_dummyBarRenderItem; |
| bool m_noZeroInRange; |
| float m_seriesScaleX; |
| float m_seriesScaleZ; |
| float m_seriesStep; |
| float m_seriesStart; |
| QPoint m_clickedPosition; |
| bool m_keepSeriesUniform; |
| bool m_haveUniformColorSeries; |
| bool m_haveGradientSeries; |
| float m_zeroPosition; |
| float m_xScaleFactor; |
| float m_zScaleFactor; |
| float m_floorLevel; |
| float m_actualFloorLevel; |
| |
| public: |
| explicit Bars3DRenderer(Bars3DController *controller); |
| ~Bars3DRenderer(); |
| |
| void updateData(); |
| void updateSeries(const QList<QAbstract3DSeries *> &seriesList); |
| SeriesRenderCache *createNewCache(QAbstract3DSeries *series); |
| void updateRows(const QVector<Bars3DController::ChangeRow> &rows); |
| void updateItems(const QVector<Bars3DController::ChangeItem> &items); |
| void updateScene(Q3DScene *scene); |
| void render(GLuint defaultFboHandle = 0); |
| |
| QVector3D convertPositionToTranslation(const QVector3D &position, bool isAbsolute); |
| |
| void updateAspectRatio(float ratio); |
| void updateFloorLevel(float level); |
| void updateMargin(float margin); |
| |
| protected: |
| void contextCleanup(); |
| virtual void initializeOpenGL(); |
| virtual void fixCameraTarget(QVector3D &target); |
| virtual void getVisibleItemBounds(QVector3D &minBounds, QVector3D &maxBounds); |
| |
| public Q_SLOTS: |
| void updateMultiSeriesScaling(bool uniform); |
| void updateBarSpecs(GLfloat thicknessRatio = 1.0f, |
| const QSizeF &spacing = QSizeF(1.0, 1.0), |
| bool relative = true); |
| void updateSlicingActive(bool isSlicing); |
| void updateSelectedBar(const QPoint &position, QBar3DSeries *series); |
| inline QPoint clickedPosition() const { return m_clickedPosition; } |
| void resetClickedStatus(); |
| |
| // Overloaded from abstract renderer |
| virtual void updateAxisRange(QAbstract3DAxis::AxisOrientation orientation, float min, |
| float max); |
| virtual void updateAxisReversed(QAbstract3DAxis::AxisOrientation orientation, |
| bool enable); |
| |
| 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 drawSlicedScene(); |
| void drawScene(GLuint defaultFboHandle); |
| void drawLabels(bool drawSelection, const Q3DCamera *activeCamera, |
| const QMatrix4x4 &viewMatrix, const QMatrix4x4 &projectionMatrix); |
| |
| bool drawBars(BarRenderItem **selectedBar, const QMatrix4x4 &depthProjectionViewMatrix, |
| const QMatrix4x4 &projectionViewMatrix, const QMatrix4x4 &viewMatrix, |
| GLint startRow, GLint stopRow, GLint stepRow, |
| GLint startBar, GLint stopBar, GLint stepBar, GLfloat reflection = 1.0f); |
| void drawBackground(GLfloat backgroundRotation, const QMatrix4x4 &depthProjectionViewMatrix, |
| const QMatrix4x4 &projectionViewMatrix, const QMatrix4x4 &viewMatrix, |
| bool reflectingDraw = false, bool drawingSelectionBuffer = false); |
| void drawGridLines(const QMatrix4x4 &depthProjectionViewMatrix, |
| const QMatrix4x4 &projectionViewMatrix, |
| const QMatrix4x4 &viewMatrix); |
| |
| void loadBackgroundMesh(); |
| void initSelectionShader(); |
| void initBackgroundShaders(const QString &vertexShader, const QString &fragmentShader); |
| void initSelectionBuffer(); |
| void initDepthShader(); |
| void updateDepthBuffer(); |
| void calculateSceneScalingFactors(); |
| void calculateHeightAdjustment(); |
| Abstract3DController::SelectionType isSelected(int row, int bar, |
| const BarSeriesRenderCache *cache); |
| QPoint selectionColorToArrayPosition(const QVector4D &selectionColor); |
| QBar3DSeries *selectionColorToSeries(const QVector4D &selectionColor); |
| |
| inline void updateRenderRow(const QBarDataRow *dataRow, BarRenderItemRow &renderRow); |
| inline void updateRenderItem(const QBarDataItem &dataItem, BarRenderItem &renderItem); |
| |
| Q_DISABLE_COPY(Bars3DRenderer) |
| }; |
| |
| QT_END_NAMESPACE_DATAVISUALIZATION |
| |
| #endif |