Mercurial > hg > svcore
view data/model/SparseOneDimensionalModel.h @ 1152:d73b4bac2dc4 3.0-integration
Fix one-block rounding error when zoomed a long way out, visible as an offset toward the end of very long audio files
author | Chris Cannam |
---|---|
date | Fri, 22 Jan 2016 12:46:19 +0000 |
parents | 57633d605547 |
children | 48e9f538e6e9 |
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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 2006 Chris Cannam. 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 _SPARSE_ONE_DIMENSIONAL_MODEL_H_ #define _SPARSE_ONE_DIMENSIONAL_MODEL_H_ #include "SparseModel.h" #include "NoteData.h" #include "base/PlayParameterRepository.h" #include "base/RealTime.h" #include <QStringList> struct OneDimensionalPoint { public: OneDimensionalPoint(sv_frame_t _frame) : frame(_frame) { } OneDimensionalPoint(sv_frame_t _frame, QString _label) : frame(_frame), label(_label) { } int getDimensions() const { return 1; } sv_frame_t frame; QString label; QString getLabel() const { return label; } void toXml(QTextStream &stream, QString indent = "", QString extraAttributes = "") const { stream << QString("%1<point frame=\"%2\" label=\"%3\" %4/>\n") .arg(indent).arg(frame).arg(XmlExportable::encodeEntities(label)) .arg(extraAttributes); } QString toDelimitedDataString(QString delimiter, DataExportOptions, sv_samplerate_t sampleRate) const { QStringList list; list << RealTime::frame2RealTime(frame, sampleRate).toString().c_str(); if (label != "") list << label; return list.join(delimiter); } struct Comparator { bool operator()(const OneDimensionalPoint &p1, const OneDimensionalPoint &p2) const { if (p1.frame != p2.frame) return p1.frame < p2.frame; return p1.label < p2.label; } }; struct OrderComparator { bool operator()(const OneDimensionalPoint &p1, const OneDimensionalPoint &p2) const { return p1.frame < p2.frame; } }; }; class SparseOneDimensionalModel : public SparseModel<OneDimensionalPoint>, public NoteExportable { Q_OBJECT public: SparseOneDimensionalModel(sv_samplerate_t sampleRate, int resolution, bool notifyOnAdd = true) : SparseModel<OneDimensionalPoint>(sampleRate, resolution, notifyOnAdd) { PlayParameterRepository::getInstance()->addPlayable(this); } virtual ~SparseOneDimensionalModel() { PlayParameterRepository::getInstance()->removePlayable(this); } virtual bool canPlay() const { return true; } virtual QString getDefaultPlayClipId() const { return "tap"; } int getIndexOf(const Point &point) { // slow int i = 0; Point::Comparator comparator; for (PointList::const_iterator j = m_points.begin(); j != m_points.end(); ++j, ++i) { if (!comparator(*j, point) && !comparator(point, *j)) return i; } return -1; } QString getTypeName() const { return tr("Sparse 1-D"); } /** * TabularModel methods. */ virtual int getColumnCount() const { return 3; } virtual QString getHeading(int column) const { switch (column) { case 0: return tr("Time"); case 1: return tr("Frame"); case 2: return tr("Label"); default: return tr("Unknown"); } } virtual QVariant getData(int row, int column, int role) const { if (column < 2) { return SparseModel<OneDimensionalPoint>::getData (row, column, role); } PointListConstIterator i = getPointListIteratorForRow(row); if (i == m_points.end()) return QVariant(); switch (column) { case 2: return i->label; default: return QVariant(); } } virtual Command *getSetDataCommand(int row, int column, const QVariant &value, int role) { if (column < 2) { return SparseModel<OneDimensionalPoint>::getSetDataCommand (row, column, value, role); } if (role != Qt::EditRole) return 0; PointListConstIterator i = getPointListIteratorForRow(row); if (i == m_points.end()) return 0; EditCommand *command = new EditCommand(this, tr("Edit Data")); Point point(*i); command->deletePoint(point); switch (column) { case 2: point.label = value.toString(); break; } command->addPoint(point); return command->finish(); } virtual bool isColumnTimeValue(int column) const { return (column < 2); } virtual SortType getSortType(int column) const { if (column == 2) return SortAlphabetical; return SortNumeric; } /** * NoteExportable methods. */ NoteList getNotes() const { return getNotesWithin(getStartFrame(), getEndFrame()); } NoteList getNotesWithin(sv_frame_t startFrame, sv_frame_t endFrame) const { PointList points = getPoints(startFrame, endFrame); NoteList notes; for (PointList::iterator pli = points.begin(); pli != points.end(); ++pli) { notes.push_back (NoteData(pli->frame, sv_frame_t(getSampleRate() / 6), // arbitrary short duration 64, // default pitch 100)); // default velocity } return notes; } }; #endif