DenseThreeDimensionalModel.h

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/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */

/*
    Sonic Visualiser
    An audio file viewer and annotation editor.
    Centre for Digital Music, Queen Mary, University of London.
    This file copyright 2006 Chris Cannam and QMUL.
    
    This program is free software; you can redistribute it and/or
    modify it under the terms of the GNU General Public License as
    published by the Free Software Foundation; either version 2 of the
    License, or (at your option) any later version.  See the file
    COPYING included with this distribution for more information.
*/

#ifndef _DENSE_THREE_DIMENSIONAL_MODEL_H_
#define _DENSE_THREE_DIMENSIONAL_MODEL_H_

#include "Model.h"
#include "TabularModel.h"
#include "base/ZoomConstraint.h"
#include "base/RealTime.h"

#include <QMutex>
#include <QVector>

class DenseThreeDimensionalModel : public Model,
                                   public TabularModel
{
    Q_OBJECT

public:
    virtual int getResolution() const = 0;

    virtual int getWidth() const = 0;

    virtual int getHeight() const = 0; 

    virtual float getMinimumLevel() const = 0;

    virtual float getMaximumLevel() const = 0;

    virtual bool isColumnAvailable(int column) const = 0;

    typedef QVector<float> Column;

    virtual Column getColumn(int column) const = 0;

    virtual float getValueAt(int column, int n) const = 0;

    virtual QString getBinName(int n) const = 0;

    virtual bool hasBinValues() const { return false; }

    virtual float getBinValue(int n) const { return n; }

    virtual QString getBinValueUnit() const { return ""; }

    virtual bool shouldUseLogValueScale() const = 0;

    bool isLocalPeak(int x, int y) {
        float value = getValueAt(x, y);
        if (y > 0 && value < getValueAt(x, y - 1)) return false;
        if (y < getHeight() - 1 && value < getValueAt(x, y + 1)) return false;
        return true;
    }

    bool isOverThreshold(int x, int y, float threshold) {
        return getValueAt(x, y) > threshold;
    }

    QString getTypeName() const { return tr("Dense 3-D"); }

    virtual int getCompletion() const = 0;

    /*
       TabularModel methods.
       This class is non-editable -- subclasses may be editable.
       Row and column are transposed for the tabular view (which is
       "on its side").
     */
    
    virtual int getRowCount() const { return getWidth(); }
    virtual int getColumnCount() const { return getHeight() + 2; }

    virtual QString getHeading(int column) const
    {
        switch (column) {
        case 0: return tr("Time");
        case 1: return tr("Frame");
        default: return getBinName(column - 2);
        }
    }

    virtual QVariant getData(int row, int column, int) const 
    {
        switch (column) {
        case 0: {
            RealTime rt = RealTime::frame2RealTime(row * getResolution(),
                                                   getSampleRate());
            return rt.toText().c_str();
        }
        case 1:
            return int(row * getResolution());
        default:
            return getValueAt(row, column - 2);
        }
    }

    virtual bool isColumnTimeValue(int col) const {
        return col < 2;
    }
    virtual SortType getSortType(int) const {
        return SortNumeric;
    }

    virtual long getFrameForRow(int row) const {
        return row * getSampleRate();
    }
    virtual int getRowForFrame(long frame) const {
        return frame / getSampleRate();
    }

protected:
    DenseThreeDimensionalModel() { }
};

#endif