annotate layer/LayerFactory.h @ 30:ea6fe8cfcdd5

* Add the Note layer for pianoroll-type display of note-type data * Complete the MIDI file importer (well, nearly -- it would be nice to be able to import the non-note data as other sorts of models, and that's not done yet). * Minor refactoring in RealTime etc
author Chris Cannam
date Fri, 10 Feb 2006 17:51:36 +0000
parents 0183ebb725ca
children 10ba9276a315
rev   line source
Chris@0 1 /* -*- c-basic-offset: 4 -*- vi:set ts=8 sts=4 sw=4: */
Chris@0 2
Chris@0 3 /*
Chris@0 4 A waveform viewer and audio annotation editor.
Chris@5 5 Chris Cannam, Queen Mary University of London, 2005-2006
Chris@0 6
Chris@0 7 This is experimental software. Not for distribution.
Chris@0 8 */
Chris@0 9
Chris@0 10 #ifndef _LAYER_FACTORY_H_
Chris@0 11 #define _LAYER_FACTORY_H_
Chris@0 12
Chris@0 13 #include <QString>
Chris@0 14 #include <set>
Chris@0 15
Chris@0 16 class Layer;
Chris@0 17 class View;
Chris@0 18 class Model;
Chris@0 19
Chris@0 20 class LayerFactory
Chris@0 21 {
Chris@0 22 public:
Chris@0 23 enum LayerType {
Chris@0 24
Chris@0 25 // Standard layers
Chris@0 26 Waveform,
Chris@0 27 Spectrogram,
Chris@0 28 TimeRuler,
Chris@0 29 TimeInstants,
Chris@0 30 TimeValues,
Chris@30 31 Notes,
Chris@0 32 Colour3DPlot,
Chris@0 33
Chris@0 34 // Layers with different initial parameters
Chris@0 35 MelodicRangeSpectrogram,
Chris@0 36
Chris@0 37 // Not-a-layer-type
Chris@0 38 UnknownLayer = 255
Chris@0 39 };
Chris@0 40
Chris@0 41 static LayerFactory *instance();
Chris@0 42
Chris@0 43 virtual ~LayerFactory();
Chris@0 44
Chris@0 45 typedef std::set<LayerType> LayerTypeSet;
Chris@0 46 LayerTypeSet getValidLayerTypes(Model *model);
Chris@17 47 LayerTypeSet getValidEmptyLayerTypes();
Chris@0 48
Chris@6 49 LayerType getLayerType(const Layer *);
Chris@0 50
Chris@0 51 Layer *createLayer(LayerType type, View *view,
Chris@0 52 Model *model = 0, int channel = -1);
Chris@0 53
Chris@0 54 QString getLayerPresentationName(LayerType type);
Chris@0 55
Chris@0 56 void setModel(Layer *layer, Model *model);
Chris@17 57 Model *createEmptyModel(LayerType type, Model *baseModel);
Chris@0 58
Chris@17 59 QString getLayerIconName(LayerType);
Chris@6 60 QString getLayerTypeName(LayerType);
Chris@6 61 LayerType getLayerTypeForName(QString);
Chris@6 62
Chris@0 63 protected:
Chris@0 64 template <typename LayerClass, typename ModelClass>
Chris@0 65 bool trySetModel(Layer *layerBase, Model *modelBase) {
Chris@0 66 LayerClass *layer = dynamic_cast<LayerClass *>(layerBase);
Chris@0 67 if (!layer) return false;
Chris@0 68 ModelClass *model = dynamic_cast<ModelClass *>(modelBase);
Chris@17 69 if (!model) return false;
Chris@0 70 layer->setModel(model);
Chris@0 71 return true;
Chris@0 72 }
Chris@0 73
Chris@0 74 static LayerFactory *m_instance;
Chris@0 75 };
Chris@0 76
Chris@0 77 #endif
Chris@0 78