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1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
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2
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3 /*
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4 Sonic Visualiser
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5 An audio file viewer and annotation editor.
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6 Centre for Digital Music, Queen Mary, University of London.
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7 This file copyright 2007 QMUL.
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8
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9 This program is free software; you can redistribute it and/or
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10 modify it under the terms of the GNU General Public License as
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11 published by the Free Software Foundation; either version 2 of the
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12 License, or (at your option) any later version. See the file
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13 COPYING included with this distribution for more information.
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14 */
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15
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16 #ifndef _AGGREGATE_WAVE_MODEL_H_
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17 #define _AGGREGATE_WAVE_MODEL_H_
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18
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19 #include "RangeSummarisableTimeValueModel.h"
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20 #include "PowerOfSqrtTwoZoomConstraint.h"
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21
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22 #include <vector>
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23
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24 class AggregateWaveModel : public RangeSummarisableTimeValueModel
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25 {
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26 Q_OBJECT
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27
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28 public:
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29 struct ModelChannelSpec
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30 {
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31 ModelChannelSpec(RangeSummarisableTimeValueModel *m, int c) :
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32 model(m), channel(c) { }
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33 RangeSummarisableTimeValueModel *model;
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34 int channel;
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35 };
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36
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37 typedef std::vector<ModelChannelSpec> ChannelSpecList;
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38
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39 AggregateWaveModel(ChannelSpecList channelSpecs);
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40 ~AggregateWaveModel();
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41
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42 bool isOK() const;
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43 bool isReady(int *) const;
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44
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45 size_t getComponentCount() const;
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46 ModelChannelSpec getComponent(size_t c) const;
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47
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48 const ZoomConstraint *getZoomConstraint() const { return &m_zoomConstraint; }
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49
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50 size_t getFrameCount() const;
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51 size_t getChannelCount() const;
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52 size_t getSampleRate() const;
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53
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54 virtual Model *clone() const;
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55
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56 float getValueMinimum() const { return -1.0f; }
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57 float getValueMaximum() const { return 1.0f; }
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58
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59 virtual size_t getStartFrame() const { return 0; }
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60 virtual size_t getEndFrame() const { return getFrameCount(); }
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61
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62 virtual size_t getData(int channel, size_t start, size_t count,
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63 float *buffer) const;
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64
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65 virtual size_t getData(int channel, size_t start, size_t count,
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66 double *buffer) const;
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67
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68 virtual void getSummaries(size_t channel, size_t start, size_t count,
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69 RangeBlock &ranges,
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70 size_t &blockSize) const;
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71
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72 virtual Range getSummary(size_t channel, size_t start, size_t count) const;
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73
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74 virtual void toXml(QTextStream &out,
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75 QString indent = "",
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76 QString extraAttributes = "") const;
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77
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78 signals:
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79 void modelChanged();
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80 void modelChanged(size_t, size_t);
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81 void completionChanged();
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82
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83 protected slots:
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84 void componentModelChanged();
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85 void componentModelChanged(size_t, size_t);
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86 void componentModelCompletionChanged();
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87
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88 protected:
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89 ChannelSpecList m_components;
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90 static PowerOfSqrtTwoZoomConstraint m_zoomConstraint;
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91 };
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92
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93 #endif
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94
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