annotate data/model/AggregateWaveModel.h @ 1807:710b4e44901b

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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 2007 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 SV_AGGREGATE_WAVE_MODEL_H
#define SV_AGGREGATE_WAVE_MODEL_H

#include "RangeSummarisableTimeValueModel.h"
#include "PowerOfSqrtTwoZoomConstraint.h"

#include <vector>

class AggregateWaveModel : public RangeSummarisableTimeValueModel
{
    Q_OBJECT

public:
    struct ModelChannelSpec
    {
        ModelChannelSpec(ModelId m, int c) : model(m), channel(c) { }
        ModelId model;
        int channel;
    };

    typedef std::vector<ModelChannelSpec> ChannelSpecList;

    AggregateWaveModel(ChannelSpecList channelSpecs);
    ~AggregateWaveModel();

    bool isOK() const override;
    bool isReady(int *) const override;
    int getCompletion() const override {
        int c = 0;
        (void)isReady(&c);
        return c;
    }

    QString getTypeName() const override { return tr("Aggregate Wave"); }

    int getComponentCount() const;
    ModelChannelSpec getComponent(int c) const;

    const ZoomConstraint *getZoomConstraint() const override { return &m_zoomConstraint; }

    sv_frame_t getFrameCount() const;
    int getChannelCount() const override;
    sv_samplerate_t getSampleRate() const override;

    float getValueMinimum() const override { return -1.0f; }
    float getValueMaximum() const override { return  1.0f; }

    sv_frame_t getStartFrame() const override { return 0; }
    sv_frame_t getTrueEndFrame() const override { return getFrameCount(); }

    floatvec_t getData(int channel, sv_frame_t start, sv_frame_t count) const override;

    std::vector<floatvec_t> getMultiChannelData(int fromchannel, int tochannel, sv_frame_t start, sv_frame_t count) const override;

    int getSummaryBlockSize(int desired) const override;

    void getSummaries(int channel, sv_frame_t start, sv_frame_t count,
                              RangeBlock &ranges,
                              int &blockSize) const override;

    Range getSummary(int channel, sv_frame_t start, sv_frame_t count) const override;

    void toXml(QTextStream &out,
                       QString indent = "",
                       QString extraAttributes = "") const override;

protected slots:
    void componentModelChanged(ModelId);
    void componentModelChangedWithin(ModelId, sv_frame_t, sv_frame_t);
    void componentModelCompletionChanged(ModelId);

protected:
    ChannelSpecList m_components;
    static PowerOfSqrtTwoZoomConstraint m_zoomConstraint;
};

#endif