Chris@441: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
Chris@441: 
Chris@441: /*
Chris@441:     Sonic Visualiser
Chris@441:     An audio file viewer and annotation editor.
Chris@441:     Centre for Digital Music, Queen Mary, University of London.
Chris@441:     
Chris@441:     This program is free software; you can redistribute it and/or
Chris@441:     modify it under the terms of the GNU General Public License as
Chris@441:     published by the Free Software Foundation; either version 2 of the
Chris@441:     License, or (at your option) any later version.  See the file
Chris@441:     COPYING included with this distribution for more information.
Chris@441: */
Chris@441: 
Chris@1581: #ifndef SV_REGION_MODEL_H
Chris@1581: #define SV_REGION_MODEL_H
Chris@441: 
Chris@1649: #include "EventCommands.h"
Chris@1649: #include "TabularModel.h"
Chris@1649: #include "Model.h"
Chris@1651: #include "DeferredNotifier.h"
Chris@1649: 
Chris@441: #include "base/RealTime.h"
Chris@1649: #include "base/EventSeries.h"
Chris@1649: #include "base/UnitDatabase.h"
Chris@1649: 
Chris@1649: #include "system/System.h"
Chris@1649: 
Chris@1649: #include <QMutex>
Chris@441: 
Chris@441: /**
Chris@1649:  * RegionModel -- a model for intervals associated with a value, which
Chris@1649:  * we call regions for no very compelling reason.
Chris@441:  */
Chris@1649: class RegionModel : public Model,
Chris@1649:                     public TabularModel,
Chris@1649:                     public EventEditable
Chris@441: {
Chris@441:     Q_OBJECT
Chris@441:     
Chris@441: public:
Chris@1649:     RegionModel(sv_samplerate_t sampleRate,
Chris@1649:                 int resolution,
Chris@441:                 bool notifyOnAdd = true) :
Chris@1649:         m_sampleRate(sampleRate),
Chris@1649:         m_resolution(resolution),
Chris@1649:         m_valueMinimum(0.f),
Chris@1649:         m_valueMaximum(0.f),
Chris@1649:         m_haveExtents(false),
Chris@1429:         m_valueQuantization(0),
Chris@1649:         m_haveDistinctValues(false),
Chris@1651:         m_notifier(this,
Chris@1651:                    notifyOnAdd ?
Chris@1651:                    DeferredNotifier::NOTIFY_ALWAYS :
Chris@1651:                    DeferredNotifier::NOTIFY_DEFERRED),
Chris@1655:         m_completion(100) {
Chris@441:     }
Chris@441: 
Chris@1040:     RegionModel(sv_samplerate_t sampleRate, int resolution,
Chris@459:                 float valueMinimum, float valueMaximum,
Chris@459:                 bool notifyOnAdd = true) :
Chris@1649:         m_sampleRate(sampleRate),
Chris@1649:         m_resolution(resolution),
Chris@1649:         m_valueMinimum(valueMinimum),
Chris@1649:         m_valueMaximum(valueMaximum),
Chris@1649:         m_haveExtents(false),
Chris@1429:         m_valueQuantization(0),
Chris@1649:         m_haveDistinctValues(false),
Chris@1651:         m_notifier(this,
Chris@1651:                    notifyOnAdd ?
Chris@1651:                    DeferredNotifier::NOTIFY_ALWAYS :
Chris@1651:                    DeferredNotifier::NOTIFY_DEFERRED),
Chris@1655:         m_completion(100) {
Chris@441:     }
Chris@441: 
Chris@1649:     virtual ~RegionModel() {
Chris@1649:     }
Chris@1649: 
Chris@1649:     QString getTypeName() const override { return tr("Region"); }
Chris@1649: 
Chris@1649:     bool isOK() const override { return true; }
Chris@1649:     sv_frame_t getStartFrame() const override { return m_events.getStartFrame(); }
Chris@1649:     sv_frame_t getEndFrame() const override { return m_events.getEndFrame(); }
Chris@1649:     sv_samplerate_t getSampleRate() const override { return m_sampleRate; }
Chris@1649:     int getResolution() const { return m_resolution; }
Chris@1649: 
Chris@1649:     QString getScaleUnits() const { return m_units; }
Chris@1649:     void setScaleUnits(QString units) {
Chris@1649:         m_units = units;
Chris@1649:         UnitDatabase::getInstance()->registerUnit(units);
Chris@441:     }
Chris@441: 
Chris@441:     float getValueQuantization() const { return m_valueQuantization; }
Chris@441:     void setValueQuantization(float q) { m_valueQuantization = q; }
Chris@441: 
Chris@442:     bool haveDistinctValues() const { return m_haveDistinctValues; }
Chris@442: 
Chris@1649:     float getValueMinimum() const { return m_valueMinimum; }
Chris@1649:     float getValueMaximum() const { return m_valueMaximum; }
Chris@1649:     
Chris@1649:     int getCompletion() const { return m_completion; }
Chris@441: 
Chris@1649:     void setCompletion(int completion, bool update = true) {
Chris@441: 
Chris@1651:         {   QMutexLocker locker(&m_mutex);
Chris@1651:             if (m_completion == completion) return;
Chris@1651:             m_completion = completion;
Chris@1649:         }
Chris@1649: 
Chris@1651:         if (update) {
Chris@1651:             m_notifier.makeDeferredNotifications();
Chris@1649:         }
Chris@1651:         
Chris@1651:         emit completionChanged();
Chris@1651: 
Chris@1651:         if (completion == 100) {
Chris@1651:             // henceforth:
Chris@1651:             m_notifier.switchMode(DeferredNotifier::NOTIFY_ALWAYS);
Chris@1649:             emit modelChanged();
Chris@1649:         }
Chris@441:     }
Chris@441: 
Chris@441:     /**
Chris@1649:      * Query methods.
Chris@1649:      */
Chris@1649:     int getEventCount() const {
Chris@1649:         return m_events.count();
Chris@1649:     }
Chris@1649:     bool isEmpty() const {
Chris@1649:         return m_events.isEmpty();
Chris@1649:     }
Chris@1649:     bool containsEvent(const Event &e) const {
Chris@1649:         return m_events.contains(e);
Chris@1649:     }
Chris@1649:     EventVector getAllEvents() const {
Chris@1649:         return m_events.getAllEvents();
Chris@1649:     }
Chris@1649:     EventVector getEventsSpanning(sv_frame_t f, sv_frame_t duration) const {
Chris@1649:         return m_events.getEventsSpanning(f, duration);
Chris@1649:     }
Chris@1649:     EventVector getEventsWithin(sv_frame_t f, sv_frame_t duration) const {
Chris@1649:         return m_events.getEventsWithin(f, duration);
Chris@1649:     }
Chris@1649:     EventVector getEventsStartingWithin(sv_frame_t f, sv_frame_t duration) const {
Chris@1649:         return m_events.getEventsStartingWithin(f, duration);
Chris@1649:     }
Chris@1649:     EventVector getEventsCovering(sv_frame_t f) const {
Chris@1649:         return m_events.getEventsCovering(f);
Chris@1649:     }
Chris@1649: 
Chris@1649:     /**
Chris@1649:      * Editing methods.
Chris@1649:      */
Chris@1649:     void add(Event e) override {
Chris@1649: 
Chris@1649:         bool allChange = false;
Chris@1649:            
Chris@1649:         {
Chris@1649:             QMutexLocker locker(&m_mutex);
Chris@1649:             m_events.add(e);
Chris@1649: 
Chris@1649:             float v = e.getValue();
Chris@1649:             if (!ISNAN(v) && !ISINF(v)) {
Chris@1649:                 if (!m_haveExtents || v < m_valueMinimum) {
Chris@1649:                     m_valueMinimum = v; allChange = true;
Chris@1649:                 }
Chris@1649:                 if (!m_haveExtents || v > m_valueMaximum) {
Chris@1649:                     m_valueMaximum = v; allChange = true;
Chris@1649:                 }
Chris@1649:                 m_haveExtents = true;
Chris@1649:             }
Chris@1649: 
Chris@1649:             if (e.hasValue() && e.getValue() != 0.f) {
Chris@1649:                 m_haveDistinctValues = true;
Chris@1649:             }
Chris@1649:         }
Chris@1649:         
Chris@1651:         m_notifier.update(e.getFrame(), e.getDuration() + m_resolution);
Chris@1651: 
Chris@1649:         if (allChange) {
Chris@1649:             emit modelChanged();
Chris@1649:         }
Chris@1649:     }
Chris@1649:     
Chris@1649:     void remove(Event e) override {
Chris@1649:         {
Chris@1649:             QMutexLocker locker(&m_mutex);
Chris@1649:             m_events.remove(e);
Chris@1649:         }
Chris@1649:         emit modelChangedWithin(e.getFrame(),
Chris@1649:                                 e.getFrame() + e.getDuration() + m_resolution);
Chris@1649:     }
Chris@1649:     
Chris@1649:     /**
Chris@441:      * TabularModel methods.  
Chris@441:      */
Chris@1649: 
Chris@1649:     int getRowCount() const override {
Chris@1649:         return m_events.count();
Chris@1649:     }
Chris@1649: 
Chris@1649:     int getColumnCount() const override {
Chris@618:         return 5;
Chris@441:     }
Chris@441: 
Chris@1649:     bool isColumnTimeValue(int column) const override {
Chris@1649:         // NB duration is not a "time value" -- that's for columns
Chris@1649:         // whose sort ordering is exactly that of the frame time
Chris@1649:         return (column < 2);
Chris@1649:     }
Chris@1649: 
Chris@1649:     sv_frame_t getFrameForRow(int row) const override {
Chris@1649:         if (row < 0 || row >= m_events.count()) {
Chris@1649:             return 0;
Chris@1649:         }
Chris@1649:         Event e = m_events.getEventByIndex(row);
Chris@1649:         return e.getFrame();
Chris@1649:     }
Chris@1649: 
Chris@1649:     int getRowForFrame(sv_frame_t frame) const override {
Chris@1649:         return m_events.getIndexForEvent(Event(frame));
Chris@1649:     }
Chris@1649:     
Chris@1649:     QString getHeading(int column) const override {
Chris@441:         switch (column) {
Chris@441:         case 0: return tr("Time");
Chris@441:         case 1: return tr("Frame");
Chris@441:         case 2: return tr("Value");
Chris@441:         case 3: return tr("Duration");
Chris@441:         case 4: return tr("Label");
Chris@441:         default: return tr("Unknown");
Chris@441:         }
Chris@441:     }
Chris@441: 
Chris@1651:     SortType getSortType(int column) const override {
Chris@1651:         if (column == 4) return SortAlphabetical;
Chris@1651:         return SortNumeric;
Chris@1651:     }
Chris@1651: 
Chris@1649:     QVariant getData(int row, int column, int role) const override {
Chris@1649: 
Chris@1649:         if (row < 0 || row >= m_events.count()) {
Chris@1649:             return QVariant();
Chris@441:         }
Chris@441: 
Chris@1649:         Event e = m_events.getEventByIndex(row);
Chris@441: 
Chris@441:         switch (column) {
Chris@1649:         case 0: return adaptFrameForRole(e.getFrame(), getSampleRate(), role);
Chris@1649:         case 1: return int(e.getFrame());
Chris@1649:         case 2: return adaptValueForRole(e.getValue(), getScaleUnits(), role);
Chris@1649:         case 3: return int(e.getDuration());
Chris@1649:         case 4: return e.getLabel();
Chris@441:         default: return QVariant();
Chris@441:         }
Chris@441:     }
Chris@441: 
Chris@1649:     Command *getSetDataCommand(int row, int column, const QVariant &value, int role) override {
Chris@1649:         
Chris@1649:         if (row < 0 || row >= m_events.count()) return nullptr;
Chris@1649:         if (role != Qt::EditRole) return nullptr;
Chris@1649: 
Chris@1649:         Event e0 = m_events.getEventByIndex(row);
Chris@1649:         Event e1;
Chris@1649: 
Chris@1649:         switch (column) {
Chris@1649:         case 0: e1 = e0.withFrame(sv_frame_t(round(value.toDouble() *
Chris@1649:                                                    getSampleRate()))); break;
Chris@1649:         case 1: e1 = e0.withFrame(value.toInt()); break;
Chris@1649:         case 2: e1 = e0.withValue(float(value.toDouble())); break;
Chris@1649:         case 3: e1 = e0.withDuration(value.toInt()); break;
Chris@1649:         case 4: e1 = e0.withLabel(value.toString()); break;
Chris@441:         }
Chris@441: 
Chris@1649:         ChangeEventsCommand *command =
Chris@1649:             new ChangeEventsCommand(this, tr("Edit Data"));
Chris@1649:         command->remove(e0);
Chris@1649:         command->add(e1);
Chris@441:         return command->finish();
Chris@441:     }
Chris@441: 
Chris@1649:     
Chris@1649:     /**
Chris@1649:      * XmlExportable methods.
Chris@1649:      */
Chris@1649:     void toXml(QTextStream &out,
Chris@1649:                QString indent = "",
Chris@1649:                QString extraAttributes = "") const override {
Chris@1649: 
Chris@1649:         Model::toXml
Chris@1649:             (out,
Chris@1649:              indent,
Chris@1649:              QString("type=\"sparse\" dimensions=\"3\" resolution=\"%1\" "
Chris@1649:                      "notifyOnAdd=\"%2\" dataset=\"%3\" subtype=\"%4\" "
Chris@1649:                      "valueQuantization=\"%5\" minimum=\"%6\" maximum=\"%7\" "
Chris@1651:                      "units=\"%8\" %9")
Chris@1649:              .arg(m_resolution)
Chris@1651:              .arg("true") // always true after model reaches 100% -
Chris@1651:                           // subsequent events are always notified
Chris@1649:              .arg(getObjectExportId(&m_events))
Chris@1649:              .arg("region")
Chris@1649:              .arg(m_valueQuantization)
Chris@1649:              .arg(m_valueMinimum)
Chris@1649:              .arg(m_valueMaximum)
Chris@1651:              .arg(encodeEntities(m_units))
Chris@1649:              .arg(extraAttributes));
Chris@1649:         
Chris@1649:         m_events.toXml(out, indent, QString("dimensions=\"3\""));
Chris@442:     }
Chris@442:     
Chris@441: protected:
Chris@1649:     sv_samplerate_t m_sampleRate;
Chris@1649:     int m_resolution;
Chris@1649: 
Chris@1649:     float m_valueMinimum;
Chris@1649:     float m_valueMaximum;
Chris@1649:     bool m_haveExtents;
Chris@441:     float m_valueQuantization;
Chris@442:     bool m_haveDistinctValues;
Chris@1649:     QString m_units;
Chris@1651:     DeferredNotifier m_notifier;
Chris@1651:     int m_completion;
Chris@1649: 
Chris@1649:     EventSeries m_events;
Chris@1649: 
Chris@1649:     mutable QMutex m_mutex;
Chris@441: };
Chris@441: 
Chris@441: #endif