svcore
1.9
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00001 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */ 00002 00003 /* 00004 Sonic Visualiser 00005 An audio file viewer and annotation editor. 00006 Centre for Digital Music, Queen Mary, University of London. 00007 This file copyright 2007 QMUL. 00008 00009 This program is free software; you can redistribute it and/or 00010 modify it under the terms of the GNU General Public License as 00011 published by the Free Software Foundation; either version 2 of the 00012 License, or (at your option) any later version. See the file 00013 COPYING included with this distribution for more information. 00014 */ 00015 00016 #ifndef _AGGREGATE_WAVE_MODEL_H_ 00017 #define _AGGREGATE_WAVE_MODEL_H_ 00018 00019 #include "RangeSummarisableTimeValueModel.h" 00020 #include "PowerOfSqrtTwoZoomConstraint.h" 00021 00022 #include <vector> 00023 00024 class AggregateWaveModel : public RangeSummarisableTimeValueModel 00025 { 00026 Q_OBJECT 00027 00028 public: 00029 struct ModelChannelSpec 00030 { 00031 ModelChannelSpec(RangeSummarisableTimeValueModel *m, int c) : 00032 model(m), channel(c) { } 00033 RangeSummarisableTimeValueModel *model; 00034 int channel; 00035 }; 00036 00037 typedef std::vector<ModelChannelSpec> ChannelSpecList; 00038 00039 AggregateWaveModel(ChannelSpecList channelSpecs); 00040 ~AggregateWaveModel(); 00041 00042 bool isOK() const; 00043 bool isReady(int *) const; 00044 00045 QString getTypeName() const { return tr("Aggregate Wave"); } 00046 00047 int getComponentCount() const; 00048 ModelChannelSpec getComponent(int c) const; 00049 00050 const ZoomConstraint *getZoomConstraint() const { return &m_zoomConstraint; } 00051 00052 int getFrameCount() const; 00053 int getChannelCount() const; 00054 int getSampleRate() const; 00055 00056 virtual Model *clone() const; 00057 00058 float getValueMinimum() const { return -1.0f; } 00059 float getValueMaximum() const { return 1.0f; } 00060 00061 virtual int getStartFrame() const { return 0; } 00062 virtual int getEndFrame() const { return getFrameCount(); } 00063 00064 virtual int getData(int channel, int start, int count, 00065 float *buffer) const; 00066 00067 virtual int getData(int channel, int start, int count, 00068 double *buffer) const; 00069 00070 virtual int getData(int fromchannel, int tochannel, 00071 int start, int count, 00072 float **buffer) const; 00073 00074 virtual int getSummaryBlockSize(int desired) const; 00075 00076 virtual void getSummaries(int channel, int start, int count, 00077 RangeBlock &ranges, 00078 int &blockSize) const; 00079 00080 virtual Range getSummary(int channel, int start, int count) const; 00081 00082 virtual void toXml(QTextStream &out, 00083 QString indent = "", 00084 QString extraAttributes = "") const; 00085 00086 signals: 00087 void modelChanged(); 00088 void modelChangedWithin(int, int); 00089 void completionChanged(); 00090 00091 protected slots: 00092 void componentModelChanged(); 00093 void componentModelChangedWithin(int, int); 00094 void componentModelCompletionChanged(); 00095 00096 protected: 00097 ChannelSpecList m_components; 00098 static PowerOfSqrtTwoZoomConstraint m_zoomConstraint; 00099 }; 00100 00101 #endif 00102