Chris@1785: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
Chris@1785: 
Chris@1785: /*
Chris@1785:     Sonic Visualiser
Chris@1785:     An audio file viewer and annotation editor.
Chris@1785:     Centre for Digital Music, Queen Mary, University of London.
Chris@1785:     
Chris@1785:     This program is free software; you can redistribute it and/or
Chris@1785:     modify it under the terms of the GNU General Public License as
Chris@1785:     published by the Free Software Foundation; either version 2 of the
Chris@1785:     License, or (at your option) any later version.  See the file
Chris@1785:     COPYING included with this distribution for more information.
Chris@1785: */
Chris@1785: 
Chris@1785: #ifndef SV_TIME_FREQUENCY_BOX_MODEL_H
Chris@1785: #define SV_TIME_FREQUENCY_BOX_MODEL_H
Chris@1785: 
Chris@1785: #include "EventCommands.h"
Chris@1785: #include "TabularModel.h"
Chris@1785: #include "Model.h"
Chris@1785: #include "DeferredNotifier.h"
Chris@1785: 
Chris@1785: #include "base/RealTime.h"
Chris@1785: #include "base/EventSeries.h"
Chris@1785: #include "base/UnitDatabase.h"
Chris@1785: 
Chris@1785: #include "system/System.h"
Chris@1785: 
Chris@1785: #include <QMutex>
Chris@1785: 
Chris@1785: /**
Chris@1785:  * TimeFrequencyBoxModel -- a model for annotations having start time,
Chris@1785:  * duration, and a frequency range. We use Events as usual for these,
Chris@1785:  * but treat the "value" as the lower frequency and "level" as the
Chris@1785:  * difference between lower and upper frequencies, which is expected
Chris@1785:  * to be non-negative (if it is negative, abs(level) will be used).
Chris@1785:  */
Chris@1785: class TimeFrequencyBoxModel : public Model,
Chris@1785:                               public TabularModel,
Chris@1785:                               public EventEditable
Chris@1785: {
Chris@1785:     Q_OBJECT
Chris@1785:     
Chris@1785: public:
Chris@1785:     TimeFrequencyBoxModel(sv_samplerate_t sampleRate,
Chris@1785:                           int resolution,
Chris@1785:                           bool notifyOnAdd = true) :
Chris@1785:         m_sampleRate(sampleRate),
Chris@1785:         m_resolution(resolution),
Chris@1785:         m_frequencyMinimum(0.f),
Chris@1785:         m_frequencyMaximum(0.f),
Chris@1785:         m_haveExtents(false),
Chris@1785:         m_notifier(this,
Chris@1785:                    getId(),
Chris@1785:                    notifyOnAdd ?
Chris@1785:                    DeferredNotifier::NOTIFY_ALWAYS :
Chris@1785:                    DeferredNotifier::NOTIFY_DEFERRED),
Chris@1785:         m_completion(100) {
Chris@1785:     }
Chris@1785: 
Chris@1785:     TimeFrequencyBoxModel(sv_samplerate_t sampleRate, int resolution,
Chris@1785:                           float frequencyMinimum, float frequencyMaximum,
Chris@1785:                           bool notifyOnAdd = true) :
Chris@1785:         m_sampleRate(sampleRate),
Chris@1785:         m_resolution(resolution),
Chris@1785:         m_frequencyMinimum(frequencyMinimum),
Chris@1785:         m_frequencyMaximum(frequencyMaximum),
Chris@1785:         m_haveExtents(true),
Chris@1785:         m_notifier(this,
Chris@1785:                    getId(),
Chris@1785:                    notifyOnAdd ?
Chris@1785:                    DeferredNotifier::NOTIFY_ALWAYS :
Chris@1785:                    DeferredNotifier::NOTIFY_DEFERRED),
Chris@1785:         m_completion(100) {
Chris@1785:     }
Chris@1785: 
Chris@1785:     virtual ~TimeFrequencyBoxModel() {
Chris@1785:     }
Chris@1785: 
Chris@1785:     QString getTypeName() const override { return tr("Time-Frequency Box"); }
Chris@1785:     bool isSparse() const override { return true; }
Chris@1785:     bool isOK() const override { return true; }
Chris@1785: 
Chris@1785:     sv_frame_t getStartFrame() const override {
Chris@1785:         return m_events.getStartFrame();
Chris@1785:     }
Chris@1785:     sv_frame_t getTrueEndFrame() const override {
Chris@1785:         if (m_events.isEmpty()) return 0;
Chris@1785:         sv_frame_t e = m_events.getEndFrame();
Chris@1785:         if (e % m_resolution == 0) return e;
Chris@1785:         else return (e / m_resolution + 1) * m_resolution;
Chris@1785:     }
Chris@1785: 
Chris@1785:     sv_samplerate_t getSampleRate() const override { return m_sampleRate; }
Chris@1785:     int getResolution() const { return m_resolution; }
Chris@1785: 
Chris@1785:     QString getScaleUnits() const { return "Hz"; }
Chris@1785: 
Chris@1785:     float getFrequencyMinimum() const { return m_frequencyMinimum; }
Chris@1785:     float getFrequencyMaximum() const { return m_frequencyMaximum; }
Chris@1785:     
Chris@1785:     int getCompletion() const override { return m_completion; }
Chris@1785: 
Chris@1785:     void setCompletion(int completion, bool update = true) {
Chris@1785: 
Chris@1785:         {   QMutexLocker locker(&m_mutex);
Chris@1785:             if (m_completion == completion) return;
Chris@1785:             m_completion = completion;
Chris@1785:         }
Chris@1785: 
Chris@1785:         if (update) {
Chris@1785:             m_notifier.makeDeferredNotifications();
Chris@1785:         }
Chris@1785:         
Chris@1785:         emit completionChanged(getId());
Chris@1785: 
Chris@1785:         if (completion == 100) {
Chris@1785:             // henceforth:
Chris@1785:             m_notifier.switchMode(DeferredNotifier::NOTIFY_ALWAYS);
Chris@1785:             emit modelChanged(getId());
Chris@1785:         }
Chris@1785:     }
Chris@1785: 
Chris@1785:     /**
Chris@1785:      * Query methods.
Chris@1785:      */
Chris@1785:     int getEventCount() const {
Chris@1785:         return m_events.count();
Chris@1785:     }
Chris@1785:     bool isEmpty() const {
Chris@1785:         return m_events.isEmpty();
Chris@1785:     }
Chris@1785:     bool containsEvent(const Event &e) const {
Chris@1785:         return m_events.contains(e);
Chris@1785:     }
Chris@1785:     EventVector getAllEvents() const {
Chris@1785:         return m_events.getAllEvents();
Chris@1785:     }
Chris@1785:     EventVector getEventsSpanning(sv_frame_t f, sv_frame_t duration) const {
Chris@1785:         return m_events.getEventsSpanning(f, duration);
Chris@1785:     }
Chris@1785:     EventVector getEventsCovering(sv_frame_t f) const {
Chris@1785:         return m_events.getEventsCovering(f);
Chris@1785:     }
Chris@1785:     EventVector getEventsWithin(sv_frame_t f, sv_frame_t duration) const {
Chris@1785:         return m_events.getEventsWithin(f, duration);
Chris@1785:     }
Chris@1785:     EventVector getEventsStartingWithin(sv_frame_t f, sv_frame_t duration) const {
Chris@1785:         return m_events.getEventsStartingWithin(f, duration);
Chris@1785:     }
Chris@1785:     EventVector getEventsStartingAt(sv_frame_t f) const {
Chris@1785:         return m_events.getEventsStartingAt(f);
Chris@1785:     }
Chris@1785:     bool getNearestEventMatching(sv_frame_t startSearchAt,
Chris@1785:                                  std::function<bool(Event)> predicate,
Chris@1785:                                  EventSeries::Direction direction,
Chris@1785:                                  Event &found) const {
Chris@1785:         return m_events.getNearestEventMatching
Chris@1785:             (startSearchAt, predicate, direction, found);
Chris@1785:     }
Chris@1785: 
Chris@1785:     /**
Chris@1785:      * Editing methods.
Chris@1785:      */
Chris@1785:     void add(Event e) override {
Chris@1785: 
Chris@1785:         bool allChange = false;
Chris@1785: 
Chris@1785:         {
Chris@1785:             QMutexLocker locker(&m_mutex);
Chris@1785:             m_events.add(e);
Chris@1785: 
Chris@1785:             float f0 = e.getValue();
Chris@1785:             float f1 = f0 + fabsf(e.getLevel());
Chris@1785:             
Chris@1785:             if (!m_haveExtents || f0 < m_frequencyMinimum) {
Chris@1785:                 m_frequencyMinimum = f0; allChange = true;
Chris@1785:             }
Chris@1785:             if (!m_haveExtents || f1 > m_frequencyMaximum) {
Chris@1785:                 m_frequencyMaximum = f1; allChange = true;
Chris@1785:             }
Chris@1785:             m_haveExtents = true;
Chris@1785:         }
Chris@1785:         
Chris@1785:         m_notifier.update(e.getFrame(), e.getDuration() + m_resolution);
Chris@1785: 
Chris@1785:         if (allChange) {
Chris@1785:             emit modelChanged(getId());
Chris@1785:         }
Chris@1785:     }
Chris@1785:     
Chris@1785:     void remove(Event e) override {
Chris@1785:         {
Chris@1785:             QMutexLocker locker(&m_mutex);
Chris@1785:             m_events.remove(e);
Chris@1785:         }
Chris@1785:         emit modelChangedWithin(getId(),
Chris@1785:                                 e.getFrame(),
Chris@1785:                                 e.getFrame() + e.getDuration() + m_resolution);
Chris@1785:     }
Chris@1785:     
Chris@1785:     /**
Chris@1785:      * TabularModel methods.  
Chris@1785:      */
Chris@1785: 
Chris@1785:     int getRowCount() const override {
Chris@1785:         return m_events.count();
Chris@1785:     }
Chris@1785: 
Chris@1785:     int getColumnCount() const override {
Chris@1785:         return 5;
Chris@1785:     }
Chris@1785: 
Chris@1785:     bool isColumnTimeValue(int column) const override {
Chris@1785:         // NB duration is not a "time value" -- that's for columns
Chris@1785:         // whose sort ordering is exactly that of the frame time
Chris@1785:         return (column < 2);
Chris@1785:     }
Chris@1785: 
Chris@1785:     sv_frame_t getFrameForRow(int row) const override {
Chris@1785:         if (row < 0 || row >= m_events.count()) {
Chris@1785:             return 0;
Chris@1785:         }
Chris@1785:         Event e = m_events.getEventByIndex(row);
Chris@1785:         return e.getFrame();
Chris@1785:     }
Chris@1785: 
Chris@1785:     int getRowForFrame(sv_frame_t frame) const override {
Chris@1785:         return m_events.getIndexForEvent(Event(frame));
Chris@1785:     }
Chris@1785:     
Chris@1785:     QString getHeading(int column) const override {
Chris@1785:         switch (column) {
Chris@1785:         case 0: return tr("Time");
Chris@1785:         case 1: return tr("Frame");
Chris@1785:         case 2: return tr("Duration");
Chris@1785:         case 3: return tr("Minimum Frequency");
Chris@1785:         case 4: return tr("Maximum Frequency");
Chris@1785:         case 5: return tr("Label");
Chris@1785:         default: return tr("Unknown");
Chris@1785:         }
Chris@1785:     }
Chris@1785: 
Chris@1785:     SortType getSortType(int column) const override {
Chris@1785:         if (column == 5) return SortAlphabetical;
Chris@1785:         return SortNumeric;
Chris@1785:     }
Chris@1785: 
Chris@1785:     QVariant getData(int row, int column, int role) const override {
Chris@1785: 
Chris@1785:         if (row < 0 || row >= m_events.count()) {
Chris@1785:             return QVariant();
Chris@1785:         }
Chris@1785: 
Chris@1785:         Event e = m_events.getEventByIndex(row);
Chris@1785: 
Chris@1785:         switch (column) {
Chris@1785:         case 0: return adaptFrameForRole(e.getFrame(), getSampleRate(), role);
Chris@1785:         case 1: return int(e.getFrame());
Chris@1785:         case 2: return int(e.getDuration());
Chris@1785:         case 3: return adaptValueForRole(e.getValue(), getScaleUnits(), role);
Chris@1785:         case 4: return adaptValueForRole(e.getValue() + fabsf(e.getLevel()),
Chris@1785:                                          getScaleUnits(), role);
Chris@1785:         case 5: return e.getLabel();
Chris@1785:         default: return QVariant();
Chris@1785:         }
Chris@1785:     }
Chris@1785: 
Chris@1785:     Command *getSetDataCommand(int row, int column, const QVariant &value,
Chris@1785:                                int role) override {
Chris@1785:         
Chris@1785:         if (row < 0 || row >= m_events.count()) return nullptr;
Chris@1785:         if (role != Qt::EditRole) return nullptr;
Chris@1785: 
Chris@1785:         Event e0 = m_events.getEventByIndex(row);
Chris@1785:         Event e1;
Chris@1785: 
Chris@1785:         switch (column) {
Chris@1785:         case 0: e1 = e0.withFrame(sv_frame_t(round(value.toDouble() *
Chris@1785:                                                    getSampleRate()))); break;
Chris@1785:         case 1: e1 = e0.withFrame(value.toInt()); break;
Chris@1785:         case 2: e1 = e0.withDuration(value.toInt()); break;
Chris@1785:         case 3: e1 = e0.withValue(float(value.toDouble())); break;
Chris@1785:         case 4: e1 = e0.withLevel(fabsf(float(value.toDouble()) -
Chris@1785:                                         e0.getValue())); break;
Chris@1785:         case 5: e1 = e0.withLabel(value.toString()); break;
Chris@1785:         }
Chris@1785: 
Chris@1785:         auto command = new ChangeEventsCommand(getId().untyped, tr("Edit Data"));
Chris@1785:         command->remove(e0);
Chris@1785:         command->add(e1);
Chris@1785:         return command->finish();
Chris@1785:     }
Chris@1785: 
Chris@1785:     
Chris@1785:     /**
Chris@1785:      * XmlExportable methods.
Chris@1785:      */
Chris@1785:     void toXml(QTextStream &out,
Chris@1785:                QString indent = "",
Chris@1785:                QString extraAttributes = "") const override {
Chris@1785: 
Chris@1785:         Model::toXml
Chris@1785:             (out,
Chris@1785:              indent,
Chris@1785:              QString("type=\"sparse\" dimensions=\"4\" resolution=\"%1\" "
Chris@1785:                      "notifyOnAdd=\"%2\" dataset=\"%3\" subtype=\"%4\" "
Chris@1785:                      "minimum=\"%5\" maximum=\"%6\" units=\"%7\" %8")
Chris@1785:              .arg(m_resolution)
Chris@1785:              .arg("true") // always true after model reaches 100% -
Chris@1785:                           // subsequent events are always notified
Chris@1785:              .arg(m_events.getExportId())
Chris@1785:              .arg("timefrequency")
Chris@1785:              .arg(m_frequencyMinimum)
Chris@1785:              .arg(m_frequencyMaximum)
Chris@1785:              .arg(encodeEntities(m_units))
Chris@1785:              .arg(extraAttributes));
Chris@1785:         
Chris@1785:         m_events.toXml(out, indent, QString("dimensions=\"3\""));
Chris@1785:     }
Chris@1785: 
Chris@1785:     QString toDelimitedDataString(QString delimiter,
Chris@1785:                                   DataExportOptions options,
Chris@1785:                                   sv_frame_t startFrame,
Chris@1785:                                   sv_frame_t duration) const override {
Chris@1785:         return m_events.toDelimitedDataString
Chris@1785:             (delimiter,
Chris@1785:              options,
Chris@1785:              startFrame,
Chris@1785:              duration,
Chris@1785:              m_sampleRate,
Chris@1785:              m_resolution,
Chris@1785:              Event().withValue(0.f).withDuration(m_resolution));
Chris@1785:     }
Chris@1785: 
Chris@1785: protected:
Chris@1785:     sv_samplerate_t m_sampleRate;
Chris@1785:     int m_resolution;
Chris@1785: 
Chris@1785:     float m_frequencyMinimum;
Chris@1785:     float m_frequencyMaximum;
Chris@1785:     bool m_haveExtents;
Chris@1785:     QString m_units;
Chris@1785:     DeferredNotifier m_notifier;
Chris@1785:     int m_completion;
Chris@1785: 
Chris@1785:     EventSeries m_events;
Chris@1785: 
Chris@1785:     mutable QMutex m_mutex;
Chris@1785: };
Chris@1785: 
Chris@1785: #endif