custominputhandler.h Example File

texturesurface/custominputhandler.h
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 #ifndef CUSTOMINPUTHANDLER_H
 #define CUSTOMINPUTHANDLER_H

 #include <QtDataVisualization/Q3DInputHandler>
 #include <QtDataVisualization/QAbstract3DGraph>
 #include <QtDataVisualization/QValue3DAxis>
 #include "highlightseries.h"

 using namespace QtDataVisualization;

 class CustomInputHandler : public Q3DInputHandler
 {
     Q_OBJECT

     enum InputState {
         StateNormal = 0,
         StateDraggingX,
         StateDraggingZ,
         StateDraggingY
     };

 public:
     explicit CustomInputHandler(QAbstract3DGraph *graph, QObject *parent = 0);

     inline void setLimits(float min, float max, float minRange) {
         m_areaMinValue = min;
         m_areaMaxValue = max;
         m_axisXMinValue = m_areaMinValue;
         m_axisXMaxValue = m_areaMaxValue;
         m_axisZMinValue = m_areaMinValue;
         m_axisZMaxValue = m_areaMaxValue;
         m_axisXMinRange = minRange;
         m_axisZMinRange = minRange;
     }
     inline void setAxes(QValue3DAxis *axisX, QValue3DAxis *axisY, QValue3DAxis *axisZ) {
         m_axisX = axisX;
         m_axisY = axisY;
         m_axisZ = axisZ;
     }
     inline void setAspectRatio(float ratio) { m_aspectRatio = ratio; }
     inline void setHighlightSeries(HighlightSeries *series) { m_highlight = series; }
     inline void setDragSpeedModifier(float modifier) { m_speedModifier = modifier; }

     virtual void mousePressEvent(QMouseEvent *event, const QPoint &mousePos);
     virtual void mouseMoveEvent(QMouseEvent *event, const QPoint &mousePos);
     virtual void mouseReleaseEvent(QMouseEvent *event, const QPoint &mousePos);
     virtual void wheelEvent(QWheelEvent *event);

 private:
     void handleElementSelected(QAbstract3DGraph::ElementType type);
     void handleAxisDragging();
     void checkConstraints();

 private:
     HighlightSeries *m_highlight;
     bool m_mousePressed;
     InputState m_state;
     QValue3DAxis *m_axisX;
     QValue3DAxis *m_axisY;
     QValue3DAxis *m_axisZ;
     float m_speedModifier;
     float m_aspectRatio;
     float m_axisXMinValue;
     float m_axisXMaxValue;
     float m_axisXMinRange;
     float m_axisZMinValue;
     float m_axisZMaxValue;
     float m_axisZMinRange;
     float m_areaMinValue;
     float m_areaMaxValue;
 };

 #endif