Mercurial > hg > svgui
view layer/LayerFactory.h @ 349:369a197737c7
* Various fixes to object lifetime management, particularly in the spectrum
layer and for notification of main model deletion.
The main purpose of this is to improve the behaviour of the spectrum, but I
think it may also help with #1840922 Various crashes in Layer Summary window.
author | Chris Cannam |
---|---|
date | Wed, 23 Jan 2008 15:43:27 +0000 |
parents | 4f4f38a11cd2 |
children | d58701996fae |
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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 2006 Chris Cannam. 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 _LAYER_FACTORY_H_ #define _LAYER_FACTORY_H_ #include <QString> #include <set> class Layer; class Model; class LayerFactory { public: enum LayerType { // Standard layers Waveform, Spectrogram, TimeRuler, TimeInstants, TimeValues, Notes, Text, Image, Colour3DPlot, Spectrum, Slice, // Layers with different initial parameters MelodicRangeSpectrogram, PeakFrequencySpectrogram, // Not-a-layer-type UnknownLayer = 255 }; static LayerFactory *getInstance(); virtual ~LayerFactory(); typedef std::set<LayerType> LayerTypeSet; LayerTypeSet getValidLayerTypes(Model *model); LayerTypeSet getValidEmptyLayerTypes(); LayerType getLayerType(const Layer *); Layer *createLayer(LayerType type); void setLayerDefaultProperties(LayerType type, Layer *layer); QString getLayerPresentationName(LayerType type); bool isLayerSliceable(const Layer *); void setModel(Layer *layer, Model *model); Model *createEmptyModel(LayerType type, Model *baseModel); int getChannel(Layer *layer); void setChannel(Layer *layer, int channel); QString getLayerIconName(LayerType); QString getLayerTypeName(LayerType); LayerType getLayerTypeForName(QString); protected: template <typename LayerClass, typename ModelClass> bool trySetModel(Layer *layerBase, Model *modelBase) { LayerClass *layer = dynamic_cast<LayerClass *>(layerBase); if (!layer) return false; ModelClass *model = dynamic_cast<ModelClass *>(modelBase); if (!model) return false; layer->setModel(model); return true; } static LayerFactory *m_instance; }; #endif