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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_SLICEABLE_LAYER_H
#define SV_SLICEABLE_LAYER_H
#include "Layer.h"
namespace sv {
/**
* Base class for layers that can be sliced, that is, that contain
* models appropriate for use in a SliceLayer.
*/
class SliceableLayer : public Layer
{
Q_OBJECT
public:
// Get a model that can be sliced, i.e. a
// DenseThreeDimensionalModel. This may be the layer's usual
// model, or it may be a model derived from it (e.g. FFTModel in a
// spectrogram that was constructed from a DenseTimeValueModel).
// The SliceableLayer retains ownership of the model, and will
// emit sliceableModelReplaced if it is about to become invalid.
virtual ModelId getSliceableModel() const = 0;
signals:
void sliceableModelReplaced(ModelId, ModelId);
};
} // end namespace sv
#endif
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