view layer/Colour3DPlotLayer.h @ 11:2d5005f2b3d9

* Rework handling of layer properties in file I/O -- we now get the individual
  layers to load and save them rather than doing it via generic property lists
  in the base class, so as to ensure we read and write meaningful values rather
  than generic int values requiring conversion.

/* -*- c-basic-offset: 4 -*-  vi:set ts=8 sts=4 sw=4: */

/*
    A waveform viewer and audio annotation editor.
    Chris Cannam, Queen Mary University of London, 2005-2006
    
    This is experimental software.  Not for distribution.
*/

#ifndef _COLOUR_3D_PLOT_H_
#define _COLOUR_3D_PLOT_H_

#include "base/Layer.h"

#include "model/DenseThreeDimensionalModel.h"

class View;
class QPainter;
class QImage;

/**
 * This is a view that displays dense 3-D data (time, some sort of
 * binned y-axis range, value) as a colour plot with value mapped to
 * colour range.  Its source is a DenseThreeDimensionalModel.
 *
 * This was the original implementation for the spectrogram view, but
 * it was replaced with a more efficient implementation that derived
 * the spectrogram itself from a DenseTimeValueModel instead of using
 * a three-dimensional model.  This class is retained in case it
 * becomes useful, but it will probably need some cleaning up if it's
 * ever actually used.
 */

class Colour3DPlotLayer : public Layer
{
    Q_OBJECT

public:
    Colour3DPlotLayer(View *w);
    ~Colour3DPlotLayer();

    virtual const ZoomConstraint *getZoomConstraint() const { return m_model; }
    virtual const Model *getModel() const { return m_model; }
    virtual void paint(QPainter &paint, QRect rect) const;

    void setModel(const DenseThreeDimensionalModel *model);


/*
    virtual PropertyList getProperties() const;
    virtual PropertyType getPropertyType(const PropertyName &) const;
    virtual int getPropertyRangeAndValue(const PropertyName &,
					   int *min, int *max) const;
    virtual QString getPropertyValueLabel(const PropertyName &,
					  int value) const;
    virtual void setProperty(const PropertyName &, int value);
*/

    virtual QString getPropertyContainerIconName() const { return "colour3d"; }

    void setProperties(const QXmlAttributes &attributes) { }
    
protected slots:
    void cacheInvalid();
    void cacheInvalid(size_t startFrame, size_t endFrame);

protected:
    const DenseThreeDimensionalModel *m_model; // I do not own this
    
    mutable QImage *m_cache;
};

#endif