Chris@297: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
Chris@297: 
Chris@297: /*
Chris@297:     Sonic Visualiser
Chris@297:     An audio file viewer and annotation editor.
Chris@297:     Centre for Digital Music, Queen Mary, University of London.
Chris@297:     This file copyright 2007 QMUL.
Chris@297:     
Chris@297:     This program is free software; you can redistribute it and/or
Chris@297:     modify it under the terms of the GNU General Public License as
Chris@297:     published by the Free Software Foundation; either version 2 of the
Chris@297:     License, or (at your option) any later version.  See the file
Chris@297:     COPYING included with this distribution for more information.
Chris@297: */
Chris@297: 
Chris@297: #ifndef _AGGREGATE_WAVE_MODEL_H_
Chris@297: #define _AGGREGATE_WAVE_MODEL_H_
Chris@297: 
Chris@297: #include "RangeSummarisableTimeValueModel.h"
Chris@297: #include "PowerOfSqrtTwoZoomConstraint.h"
Chris@297: 
Chris@297: #include <vector>
Chris@297: 
Chris@297: class AggregateWaveModel : public RangeSummarisableTimeValueModel
Chris@297: {
Chris@297:     Q_OBJECT
Chris@297: 
Chris@297: public:
Chris@297:     struct ModelChannelSpec
Chris@297:     {
Chris@297:         ModelChannelSpec(RangeSummarisableTimeValueModel *m, int c) :
Chris@297:             model(m), channel(c) { }
Chris@297:         RangeSummarisableTimeValueModel *model;
Chris@297:         int channel;
Chris@297:     };
Chris@297: 
Chris@297:     typedef std::vector<ModelChannelSpec> ChannelSpecList;
Chris@297: 
Chris@297:     AggregateWaveModel(ChannelSpecList channelSpecs);
Chris@297:     ~AggregateWaveModel();
Chris@297: 
Chris@297:     bool isOK() const;
Chris@297:     bool isReady(int *) const;
Chris@297: 
Chris@345:     QString getTypeName() const { return tr("Aggregate Wave"); }
Chris@345: 
Chris@929:     int getComponentCount() const;
Chris@929:     ModelChannelSpec getComponent(int c) const;
Chris@297: 
Chris@297:     const ZoomConstraint *getZoomConstraint() const { return &m_zoomConstraint; }
Chris@297: 
Chris@929:     int getFrameCount() const;
Chris@929:     int getChannelCount() const;
Chris@929:     int getSampleRate() const;
Chris@297: 
Chris@297:     virtual Model *clone() const;
Chris@297: 
Chris@297:     float getValueMinimum() const { return -1.0f; }
Chris@297:     float getValueMaximum() const { return  1.0f; }
Chris@297: 
Chris@929:     virtual int getStartFrame() const { return 0; }
Chris@929:     virtual int getEndFrame() const { return getFrameCount(); }
Chris@297: 
Chris@929:     virtual int getData(int channel, int start, int count,
Chris@300:                            float *buffer) const;
Chris@297: 
Chris@929:     virtual int getData(int channel, int start, int count,
Chris@300:                            double *buffer) const;
Chris@297: 
Chris@929:     virtual int getData(int fromchannel, int tochannel,
Chris@929:                            int start, int count,
Chris@363:                            float **buffer) const;
Chris@363: 
Chris@929:     virtual int getSummaryBlockSize(int desired) const;
Chris@377: 
Chris@929:     virtual void getSummaries(int channel, int start, int count,
Chris@300:                               RangeBlock &ranges,
Chris@929:                               int &blockSize) const;
Chris@297: 
Chris@929:     virtual Range getSummary(int channel, int start, int count) const;
Chris@297: 
Chris@297:     virtual void toXml(QTextStream &out,
Chris@297:                        QString indent = "",
Chris@297:                        QString extraAttributes = "") const;
Chris@297: 
Chris@297: signals:
Chris@297:     void modelChanged();
Chris@947:     void modelChangedWithin(int, int);
Chris@297:     void completionChanged();
Chris@297: 
Chris@297: protected slots:
Chris@297:     void componentModelChanged();
Chris@947:     void componentModelChangedWithin(int, int);
Chris@297:     void componentModelCompletionChanged();
Chris@297: 
Chris@297: protected:
Chris@297:     ChannelSpecList m_components;
Chris@297:     static PowerOfSqrtTwoZoomConstraint m_zoomConstraint;
Chris@297: };
Chris@297: 
Chris@297: #endif
Chris@297: