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#ifndef CAMERAPOSITIONER_P_H
#define CAMERAPOSITIONER_P_H
#include "qdatavis3dglobal.h"
class QMatrix4x4;
class QVector3D;
class QPoint;
class QPointF;
QTCOMMERCIALDATAVIS3D_BEGIN_NAMESPACE
class CameraHelper
{
public:
// How fast camera rotates when mouse is dragged. Default is 100.
static void setRotationSpeed(int speed);
// Set camera rotation in degrees
static void setCameraRotation(QPointF rotation);
// Set default camera orientation. Position's x and y should be 0.
static void setDefaultCameraOrientation(QVector3D defaultPosition
, QVector3D defaultTarget
, QVector3D defaultUp);
static QMatrix4x4 calculateViewMatrix(QPoint mousePos, int zoom
, int screenWidth, int screenHeight);
static void updateMousePos(QPoint mousePos);
};
QTCOMMERCIALDATAVIS3D_END_NAMESPACE
#endif
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