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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 SV_LAYER_FACTORY_H
#define SV_LAYER_FACTORY_H
#include <QString>
#include <set>
#include "data/model/Model.h"
namespace sv {
class Layer;
class Clipboard;
class LayerFactory
{
public:
enum LayerType {
// Standard layers
Waveform,
Spectrogram,
TimeRuler,
TimeInstants,
TimeValues,
Notes,
FlexiNotes,
Regions,
Boxes,
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(ModelId modelId);
/**
* Return the set of layer types that an end user should be
* allowed to create, empty, for subsequent editing.
*/
LayerTypeSet getValidEmptyLayerTypes();
LayerType getLayerType(const Layer *);
Layer *createLayer(LayerType type);
/**
* Set the default properties of a layer, from the XML string
* contained in the LayerDefaults settings group for the given
* layer type. Leave unchanged any properties not mentioned in the
* settings.
*/
void setLayerDefaultProperties(LayerType type, Layer *layer);
/**
* Set the properties of a layer, from the XML string
* provided. Leave unchanged any properties not mentioned.
*/
void setLayerProperties(Layer *layer, QString xmlString);
QString getLayerPresentationName(LayerType type);
bool isLayerSliceable(const Layer *);
void setModel(Layer *layer, ModelId model);
std::shared_ptr<Model> createEmptyModel(LayerType type, ModelId baseModel);
int getChannel(Layer *layer);
void setChannel(Layer *layer, int channel);
QString getLayerIconName(LayerType);
QString getLayerTypeName(LayerType);
LayerType getLayerTypeForName(QString);
LayerType getLayerTypeForClipboardContents(const Clipboard &);
protected:
template <typename LayerClass, typename ModelClass>
bool trySetModel(Layer *layerBase, ModelId modelId) {
LayerClass *layer = dynamic_cast<LayerClass *>(layerBase);
if (!layer) return false;
if (!modelId.isNone()) {
auto model = ModelById::getAs<ModelClass>(modelId);
if (!model) return false;
}
layer->setModel(modelId);
return true;
}
static LayerFactory *m_instance;
};
} // end namespace sv
#endif
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