comparison data/model/AlignmentModel.h @ 297:c022976d18e8

* Merge from sv-match-alignment branch (excluding alignment-specific document).
  - add aggregate wave model (not yet complete enough to be added as a true
    model in a layer, but there's potential)
  - add play solo mode
  - add alignment model -- unused in plain SV
  - fix two plugin leaks
  - add m3u playlist support (opens all files at once, potentially hazardous)
  - fix retrieval of pre-encoded URLs
  - add ability to resample audio files on import, so as to match rates with
    other files previously loaded; add preference for same
  - add preliminary support in transform code for range and rate of transform
    input
  - reorganise preferences dialog, move dark-background option to preferences,
    add option for temporary directory location

+/* -*- 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 _ALIGNMENT_MODEL_H_
+#define _ALIGNMENT_MODEL_H_
+
+#include "Model.h"
+
+class SparseTimeValueModel;
+
+class AlignmentModel : public Model
+{
+    Q_OBJECT
+
+public:
+    AlignmentModel(Model *reference,
+                   Model *aligned,
+                   Model *inputModel, // probably an AggregateWaveModel; I take ownership
+                   SparseTimeValueModel *path); // I take ownership
+    ~AlignmentModel();
+
+    virtual bool isOK() const;
+    virtual size_t getStartFrame() const;
+    virtual size_t getEndFrame() const;
+    virtual size_t getSampleRate() const;
+    virtual Model *clone() const;
+    virtual bool isReady(int *completion = 0) const;
+    virtual const ZoomConstraint *getZoomConstraint() const;
+
+    const Model *getReferenceModel() const;
+    const Model *getAlignedModel() const;
+
+    size_t toReference(size_t frame) const;
+    size_t fromReference(size_t frame) const;
+
+signals:
+    void modelChanged();
+    void modelChanged(size_t startFrame, size_t endFrame);
+    void completionChanged();
+
+protected slots:
+    void pathChanged();
+    void pathChanged(size_t startFrame, size_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_path; // I own this
+    mutable SparseTimeValueModel *m_reversePath; // I own this
+    bool m_pathComplete;
+
+    void constructReversePath() const;
+
+    size_t align(SparseTimeValueModel *path, size_t frame) const;
+};
+
+#endif