Mercurial > hg > svcore
view data/model/PathModel.h @ 1725:78fe29adfd16
Re-implement extendEndFrame behaviour, used by Tony application
author | Chris Cannam |
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date | Wed, 19 Jun 2019 13:32:52 +0100 |
parents | cd6be949a16a |
children | d91ff235e69d |
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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 SV_PATH_MODEL_H #define SV_PATH_MODEL_H #include "Model.h" #include "DeferredNotifier.h" #include "base/RealTime.h" #include "base/BaseTypes.h" #include "base/XmlExportable.h" #include "base/RealTime.h" #include <QStringList> #include <set> struct PathPoint { PathPoint(sv_frame_t _frame) : frame(_frame), mapframe(_frame) { } PathPoint(sv_frame_t _frame, sv_frame_t _mapframe) : frame(_frame), mapframe(_mapframe) { } sv_frame_t frame; sv_frame_t mapframe; void toXml(QTextStream &stream, QString indent = "", QString extraAttributes = "") const { stream << QString("%1<point frame=\"%2\" mapframe=\"%3\" %4/>\n") .arg(indent).arg(frame).arg(mapframe).arg(extraAttributes); } QString toDelimitedDataString(QString delimiter, DataExportOptions, sv_samplerate_t sampleRate) const { QStringList list; list << RealTime::frame2RealTime(frame, sampleRate).toString().c_str(); list << QString("%1").arg(mapframe); return list.join(delimiter); } bool operator<(const PathPoint &p2) const { if (frame != p2.frame) return frame < p2.frame; return mapframe < p2.mapframe; } }; class PathModel : public Model { public: typedef std::set<PathPoint> PointList; PathModel(sv_samplerate_t sampleRate, int resolution, bool notifyOnAdd = true) : m_sampleRate(sampleRate), m_resolution(resolution), m_notifier(this, notifyOnAdd ? DeferredNotifier::NOTIFY_ALWAYS : DeferredNotifier::NOTIFY_DEFERRED), m_completion(100), m_start(0), m_end(0) { } QString getTypeName() const override { return tr("Path"); } bool isSparse() const override { return true; } bool isOK() const override { return true; } sv_frame_t getStartFrame() const override { return m_start; } sv_frame_t getTrueEndFrame() const override { return m_end; } sv_samplerate_t getSampleRate() const override { return m_sampleRate; } int getResolution() const { return m_resolution; } int getCompletion() const override { return m_completion; } void setCompletion(int completion, bool update = true) { { QMutexLocker locker(&m_mutex); if (m_completion == completion) return; m_completion = completion; } if (update) { m_notifier.makeDeferredNotifications(); } emit completionChanged(); if (completion == 100) { // henceforth: m_notifier.switchMode(DeferredNotifier::NOTIFY_ALWAYS); emit modelChanged(); } } /** * Query methods. */ int getPointCount() const { return int(m_points.size()); } const PointList &getPoints() const { return m_points; } /** * Editing methods. */ void add(PathPoint p) { { QMutexLocker locker(&m_mutex); m_points.insert(p); if (m_start == m_end) { m_start = p.frame; m_end = m_start + m_resolution; } else { if (p.frame < m_start) { m_start = p.frame; } if (p.frame + m_resolution > m_end) { m_end = p.frame + m_resolution; } } } m_notifier.update(p.frame, m_resolution); } void remove(PathPoint p) { { QMutexLocker locker(&m_mutex); m_points.erase(p); } emit modelChangedWithin(p.frame, p.frame + m_resolution); } void clear() { { QMutexLocker locker(&m_mutex); m_start = m_end = 0; m_points.clear(); } } /** * XmlExportable methods. */ void toXml(QTextStream &out, QString indent = "", QString extraAttributes = "") const override { // Our dataset doesn't have its own export ID, we just use // ours. Actually any model could do that, since datasets // aren't in the same id-space as models when re-read Model::toXml (out, indent, QString("type=\"sparse\" dimensions=\"2\" resolution=\"%1\" " "notifyOnAdd=\"%2\" dataset=\"%3\" subtype=\"path\" %4") .arg(m_resolution) .arg("true") // always true after model reaches 100% - // subsequent points are always notified .arg(getExportId()) .arg(extraAttributes)); out << indent << QString("<dataset id=\"%1\" dimensions=\"2\">\n") .arg(getExportId()); for (PathPoint p: m_points) { p.toXml(out, indent + " ", ""); } out << indent << "</dataset>\n"; } QString toDelimitedDataString(QString delimiter, DataExportOptions, sv_frame_t startFrame, sv_frame_t duration) const override { QString s; for (PathPoint p: m_points) { if (p.frame < startFrame) continue; if (p.frame >= startFrame + duration) break; s += QString("%1%2%3\n") .arg(p.frame) .arg(delimiter) .arg(p.mapframe); } return s; } protected: sv_samplerate_t m_sampleRate; int m_resolution; DeferredNotifier m_notifier; int m_completion; sv_frame_t m_start; sv_frame_t m_end; PointList m_points; mutable QMutex m_mutex; }; #endif