qwt_matrix_raster_data.h

/******************************************************************************
 * Qwt Widget Library
 * Copyright (C) 1997   Josef Wilgen
 * Copyright (C) 2002   Uwe Rathmann
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the Qwt License, Version 1.0
 *****************************************************************************/
 
#ifndef QWT_MATRIX_RASTER_DATA_H
#define QWT_MATRIX_RASTER_DATA_H
 
#include "qwt_global.h"
#include "qwt_raster_data.h"
 
#if QT_VERSION < 0x060000
template< typename T > class QVector;
#endif
 
class QWT_EXPORT QwtMatrixRasterData : public QwtRasterData
{
  public:
    enum ResampleMode
    {
        NearestNeighbour,
 
        BilinearInterpolation,
 
        BicubicInterpolation
    };
 
    QwtMatrixRasterData();
    virtual ~QwtMatrixRasterData();
 
    void setResampleMode(ResampleMode mode);
    ResampleMode resampleMode() const;
 
    void setInterval( Qt::Axis, const QwtInterval& );
    virtual QwtInterval interval( Qt::Axis axis) const QWT_OVERRIDE QWT_FINAL;
 
    void setValueMatrix( const QVector< double >& values, int numColumns );
    const QVector< double > valueMatrix() const;
 
    void setValue( int row, int col, double value );
 
    int numColumns() const;
    int numRows() const;
 
    virtual QRectF pixelHint( const QRectF& ) const QWT_OVERRIDE;
 
    virtual double value( double x, double y ) const QWT_OVERRIDE;
 
  private:
    void update();
 
    class PrivateData;
    PrivateData* m_data;
};
 
#endif