Mercurial > hg > svgui
view layer/SliceableLayer.h @ 1212:a1ee3108d1d3 3.0-integration
Make the colour 3d plot renderer able to support more than one level of peak cache; introduce a second "peak" cache for the spectrogram layer that actually has a 1-1 column relationship with the underlying FFT model, and use it in addition to the existing peak cache if memory is plentiful. Makes spectrograms appear much faster in many common situations.
author | Chris Cannam |
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date | Thu, 05 Jan 2017 14:02:54 +0000 |
parents | 57c2350a8c40 |
children | 05d614f6e46d |
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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 _SLICEABLE_LAYER_H_ #define _SLICEABLE_LAYER_H_ #include "Layer.h" /** * 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 const Model *getSliceableModel() const = 0; signals: // Emitted when a model that was obtained through // getSliceableModel is about to be deleted. If replacement is // non-NULL, it may be used instead. void sliceableModelReplaced(const Model *modelToBeReplaced, const Model *replacement); }; #endif