view layer/TimeValueLayer.h @ 1:ab83c415a6cd

* Backed out partially complete changes to make the spectrogram only
store results up to the requested max frequency.  The speed improvement
was minimal at the expense of annoyance when changing frequency limit,
and although it did save memory, it wasn't yet reliable and fixing it
is not a high enough priority.

/* -*- 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
    
    This is experimental software.  Not for distribution.
*/

#ifndef _TIME_VALUE_VIEW_H_
#define _TIME_VALUE_VIEW_H_

#include "base/Layer.h"
#include "model/SparseTimeValueModel.h"

#include <QObject>
#include <QColor>

class View;
class QPainter;

class TimeValueLayer : public Layer
{
    Q_OBJECT

public:
    TimeValueLayer(View *w);

    virtual void paint(QPainter &paint, QRect rect) const;

    virtual QRect getFeatureDescriptionRect(QPainter &, QPoint) const;
    virtual void paintLocalFeatureDescription(QPainter &, QRect, QPoint) const;

    virtual const Model *getModel() const { return m_model; }
    void setModel(SparseTimeValueModel *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);

    void setBaseColour(QColor);
    QColor getBaseColour() const { return m_colour; }

    enum PlotStyle { PlotPoints, PlotStems, PlotLines };

    void setPlotStyle(PlotStyle style);
    PlotStyle getPlotStyle() const { return m_plotStyle; }

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

    virtual bool isLayerScrollable() const;

    virtual int getCompletion() const { return m_model->getCompletion(); }

protected:
    SparseTimeValueModel::PointList getLocalPoints(int) const;

    SparseTimeValueModel *m_model;
    QColor m_colour;
    PlotStyle m_plotStyle;
};

#endif