Qwt User's Guide 6.0.2

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qwt_matrix_raster_data.h
1 /* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************
2 * Qwt Widget Library
3 * Copyright (C) 1997 Josef Wilgen
4 * Copyright (C) 2002 Uwe Rathmann
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the Qwt License, Version 1.0
8 *****************************************************************************/
9
10 #ifndef QWT_MATRIX_RASTER_DATA_H
11 #define QWT_MATRIX_RASTER_DATA_H 1
12
13 #include "qwt_global.h"
14 #include "qwt_raster_data.h"
15 #include <qvector.h>
16
25 class QWT_EXPORT QwtMatrixRasterData: public QwtRasterData
26 {
27 public:
32 enum ResampleMode
33 {
38 NearestNeighbour,
39
44 BilinearInterpolation
45 };
46
47 QwtMatrixRasterData();
48 virtual ~QwtMatrixRasterData();
49
50 void setResampleMode(ResampleMode mode);
51 ResampleMode resampleMode() const;
52
53 virtual void setInterval( Qt::Axis, const QwtInterval & );
54 void setValueMatrix( const QVector<double> &values, size_t numColumns );
55
56 const QVector<double> valueMatrix() const;
57 size_t numColumns() const;
58 size_t numRows() const;
59
60 virtual QRectF pixelHint( const QRectF & ) const;
61
62 virtual double value( double x, double y ) const;
63
64 private:
65 void update();
66
67 class PrivateData;
68 PrivateData *d_data;
69 };
70
71 #endif