74 lines
2.2 KiB
C++
74 lines
2.2 KiB
C++
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// ATSFrameProxyModel abstract base class definition
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//
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// Abstract proxy model for ATS partials/residual per frame data
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// (source model = ATSDataProxyModel)
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//
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// QATSH Copyright 2009 Jean-Philippe MEURET <jpmeuret@free.fr>
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#include <iostream>
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#include <QtCore/QModelIndex>
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#include "ATSDataProxyModel.h"
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#include "ATSFrameProxyModel.h"
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#include "ATSModelItems.h"
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// Constructors / Destructor ===============================================
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ATSFrameProxyModel::ATSFrameProxyModel(QObject *parent)
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: QAbstractProxyModel(parent), _nCurrFrameIndex(0)
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{
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}
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ATSFrameProxyModel::~ATSFrameProxyModel()
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{
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}
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// Set source model ========================================================
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void ATSFrameProxyModel::setSourceModel(QAbstractItemModel* pSourceModel)
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{
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// Normal base class job.
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QAbstractProxyModel::setSourceModel(pSourceModel);
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// And also prepare for future source model resets.
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connect(pSourceModel, SIGNAL(modelReset()), this, SLOT(onSourceModelReset()));
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}
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void ATSFrameProxyModel::onSourceModelReset()
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{
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// If the source model has been reset (from a newly analysed ATSSound, as an ex.),
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// we must check and may be fix the current frame index (may be larger than possible).
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const int nNbFrames = nbFrames();
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if (_nCurrFrameIndex >= nNbFrames)
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_nCurrFrameIndex = nNbFrames - 1;
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// std::cout << "ATSFrameProxyModel::onSourceModelReset : currFrameIdx = "
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// << _nCurrFrameIndex << std::endl;
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// And also warn attached views that we were reset
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reset();
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}
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// Set current frame =======================================================
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void ATSFrameProxyModel::setCurrentFrame(int nFrameIndex)
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{
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// Save current frame index.
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_nCurrFrameIndex = nFrameIndex;
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// Warn attached views that the whole model has changed.
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reset();
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}
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// Get number of frames ====================================================
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int ATSFrameProxyModel::nbFrames() const
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{
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return static_cast<const ATSDataProxyModel*>(sourceModel())->nbFrames();
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}
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// Get frame duration ======================================================
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double ATSFrameProxyModel::frameDuration() const
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{
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return static_cast<const ATSDataProxyModel*>(sourceModel())->frameDuration();
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}
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