view data/model/AlignmentModel.h @ 1671:82d03c9661f9 single-point

Rework isReady()/getCompletion() on models. Previously the new overhauled models were implementing getCompletion() but inheriting a version of isReady() (from the Model base) that didn't call it, referring only to isOK(). So they were reporting completion as soon as they had begun. Instead hoist getCompletion() to abstract base and call it from Model::isReady().

/* -*- 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_ALIGNMENT_MODEL_H
#define SV_ALIGNMENT_MODEL_H

#include "Model.h"
#include "PathModel.h"
#include "base/RealTime.h"

#include <QString>
#include <QStringList>

class SparseTimeValueModel;

class AlignmentModel : public Model
{
    Q_OBJECT

public:
    AlignmentModel(Model *reference,
                   Model *aligned,
                   Model *inputModel, // probably an AggregateWaveModel; may be null; I take ownership
                   SparseTimeValueModel *path); // I take ownership
    ~AlignmentModel();

    bool isOK() const override;
    sv_frame_t getStartFrame() const override;
    sv_frame_t getEndFrame() const override;
    sv_samplerate_t getSampleRate() const override;
    bool isReady(int *completion = 0) const override;
    int getCompletion() const override {
        int c = 0;
        (void)isReady(&c);
        return c;
    }
    const ZoomConstraint *getZoomConstraint() const override;

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

    const Model *getReferenceModel() const;
    const Model *getAlignedModel() const;

    sv_frame_t toReference(sv_frame_t frame) const;
    sv_frame_t fromReference(sv_frame_t frame) const;

    void setPathFrom(SparseTimeValueModel *rawpath);
    void setPath(PathModel *path);

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

signals:
    void modelChanged();
    void modelChangedWithin(sv_frame_t startFrame, sv_frame_t endFrame);
    void completionChanged();

protected slots:
    void pathChanged();
    void pathChangedWithin(sv_frame_t startFrame, sv_frame_t endFrame);
    void pathCompletionChanged();

protected:
    Model *m_reference; // I don't own this
    Model *m_aligned; // I don't own this

    Model *m_inputModel; // I own this

    SparseTimeValueModel *m_rawPath; // I own this
    mutable PathModel *m_path; // I own this
    mutable PathModel *m_reversePath; // I own this
    bool m_pathBegun;
    bool m_pathComplete;

    void constructPath() const;
    void constructReversePath() const;

    sv_frame_t align(PathModel *path, sv_frame_t frame) const;
};

#endif