Qwt User's Guide 6.0.1

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# qwt_plot_spectrogram.h

    00001 /* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************
    00002  * Qwt Widget Library
    00003  * Copyright (C) 1997   Josef Wilgen
    00004  * Copyright (C) 2002   Uwe Rathmann
    00005  *
    00006  * This library is free software; you can redistribute it and/or
    00007  * modify it under the terms of the Qwt License, Version 1.0
    00008  *****************************************************************************/
    00009
    00010 #ifndef QWT_PLOT_SPECTROGRAM_H
    00011 #define QWT_PLOT_SPECTROGRAM_H
    00012
    00013 #include "qwt_global.h"
    00014 #include "qwt_raster_data.h"
    00015 #include "qwt_plot_rasteritem.h"
    00016 #include <qlist.h>
    00017
    00018 class QwtColorMap;
    00019
    00034 class QWT_EXPORT QwtPlotSpectrogram: public QwtPlotRasterItem
    00035 {
    00036 public:
    00042     enum DisplayMode
    00043     {
    00045         ImageMode = 0x01,
    00046
    00048         ContourMode = 0x02
    00049     };
    00050
    00052     typedef QFlags<DisplayMode> DisplayModes;
    00053
    00054     explicit QwtPlotSpectrogram( const QString &title = QString::null );
    00055     virtual ~QwtPlotSpectrogram();
    00056
    00057     void setRenderThreadCount( uint numThreads );
    00058     uint renderThreadCount() const;
    00059
    00060     void setDisplayMode( DisplayMode, bool on = true );
    00061     bool testDisplayMode( DisplayMode ) const;
    00062
    00063     void setData( QwtRasterData *data );
    00064     const QwtRasterData *data() const;
    00065     QwtRasterData *data();
    00066
    00067     void setColorMap( QwtColorMap * );
    00068     const QwtColorMap *colorMap() const;
    00069
    00070     virtual QwtInterval interval(Qt::Axis) const;
    00071     virtual QRectF pixelHint( const QRectF & ) const;
    00072
    00073     void setDefaultContourPen( const QPen & );
    00074     QPen defaultContourPen() const;
    00075
    00076     virtual QPen contourPen( double level ) const;
    00077
    00078     void setConrecFlag( QwtRasterData::ConrecFlag, bool on );
    00079     bool testConrecFlag( QwtRasterData::ConrecFlag ) const;
    00080
    00081     void setContourLevels( const QList<double> & );
    00082     QList<double> contourLevels() const;
    00083
    00084     virtual int rtti() const;
    00085
    00086     virtual void draw( QPainter *p,
    00087         const QwtScaleMap &xMap, const QwtScaleMap &yMap,
    00088         const QRectF &rect ) const;
    00089
    00090 protected:
    00091     virtual QImage renderImage(
    00092         const QwtScaleMap &xMap, const QwtScaleMap &yMap,
    00093         const QRectF &area, const QSize &imageSize ) const;
    00094
    00095     virtual QSize contourRasterSize(
    00096         const QRectF &, const QRect & ) const;
    00097
    00098     virtual QwtRasterData::ContourLines renderContourLines(
    00099         const QRectF &rect, const QSize &raster ) const;
    00100
    00101     virtual void drawContourLines( QPainter *p,
    00102         const QwtScaleMap &xMap, const QwtScaleMap &yMap,
    00103         const QwtRasterData::ContourLines& lines ) const;
    00104
    00105     void renderTile( const QwtScaleMap &xMap, const QwtScaleMap &yMap,
    00106         const QRect &imageRect, QImage *image ) const;
    00107
    00108 private:
    00109     class PrivateData;
    00110     PrivateData *d_data;
    00111 };
    00112
    00113 Q_DECLARE_OPERATORS_FOR_FLAGS( QwtPlotSpectrogram::DisplayModes )
    00114
    00115 #endif