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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 2007 QMUL.
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 _AGGREGATE_WAVE_MODEL_H_
#define _AGGREGATE_WAVE_MODEL_H_
#include "RangeSummarisableTimeValueModel.h"
#include "PowerOfSqrtTwoZoomConstraint.h"
#include <vector>
class AggregateWaveModel : public RangeSummarisableTimeValueModel
{
Q_OBJECT
public:
struct ModelChannelSpec
{
ModelChannelSpec(RangeSummarisableTimeValueModel *m, int c) :
model(m), channel(c) { }
RangeSummarisableTimeValueModel *model;
int channel;
};
typedef std::vector<ModelChannelSpec> ChannelSpecList;
AggregateWaveModel(ChannelSpecList channelSpecs);
~AggregateWaveModel();
bool isOK() const;
bool isReady(int *) const;
QString getTypeName() const { return tr("Aggregate Wave"); }
int getComponentCount() const;
ModelChannelSpec getComponent(int c) const;
const ZoomConstraint *getZoomConstraint() const { return &m_zoomConstraint; }
sv_frame_t getFrameCount() const;
int getChannelCount() const;
sv_samplerate_t getSampleRate() const;
float getValueMinimum() const { return -1.0f; }
float getValueMaximum() const { return 1.0f; }
virtual sv_frame_t getStartFrame() const { return 0; }
virtual sv_frame_t getEndFrame() const { return getFrameCount(); }
virtual sv_frame_t getData(int channel, sv_frame_t start, sv_frame_t count,
float *buffer) const;
virtual sv_frame_t getMultiChannelData(int fromchannel, int tochannel,
sv_frame_t start, sv_frame_t count,
float **buffer) const;
virtual int getSummaryBlockSize(int desired) const;
virtual void getSummaries(int channel, sv_frame_t start, sv_frame_t count,
RangeBlock &ranges,
int &blockSize) const;
virtual Range getSummary(int channel, sv_frame_t start, sv_frame_t count) const;
virtual void toXml(QTextStream &out,
QString indent = "",
QString extraAttributes = "") const;
signals:
void modelChanged();
void modelChangedWithin(sv_frame_t, sv_frame_t);
void completionChanged();
protected slots:
void componentModelChanged();
void componentModelChangedWithin(sv_frame_t, sv_frame_t);
void componentModelCompletionChanged();
protected:
ChannelSpecList m_components;
static PowerOfSqrtTwoZoomConstraint m_zoomConstraint;
};
#endif
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