Chris@147: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
Chris@147: 
Chris@147: /*
Chris@147:     Sonic Visualiser
Chris@147:     An audio file viewer and annotation editor.
Chris@147:     Centre for Digital Music, Queen Mary, University of London.
Chris@147:     
Chris@147:     This program is free software; you can redistribute it and/or
Chris@147:     modify it under the terms of the GNU General Public License as
Chris@147:     published by the Free Software Foundation; either version 2 of the
Chris@147:     License, or (at your option) any later version.  See the file
Chris@147:     COPYING included with this distribution for more information.
Chris@147: */
Chris@147: 
Chris@1581: #ifndef SV_TEXT_MODEL_H
Chris@1581: #define SV_TEXT_MODEL_H
Chris@147: 
Chris@1661: #include "EventCommands.h"
Chris@1661: #include "TabularModel.h"
Chris@1661: #include "Model.h"
Chris@1661: #include "DeferredNotifier.h"
Chris@1661: 
Chris@1661: #include "base/EventSeries.h"
Chris@302: #include "base/XmlExportable.h"
Chris@147: #include "base/RealTime.h"
Chris@147: 
Chris@1661: #include "system/System.h"
Chris@1661: 
Chris@423: #include <QStringList>
Chris@423: 
Chris@147: /**
Chris@1661:  * A model representing casual textual annotations. A piece of text
Chris@1661:  * has a given time and y-value in the [0,1) range (indicative of
Chris@1661:  * height on the window).
Chris@147:  */
Chris@1661: class TextModel : public Model,
Chris@1661:                   public TabularModel,
Chris@1661:                   public EventEditable
Chris@147: {
Chris@423:     Q_OBJECT
Chris@423:     
Chris@147: public:
Chris@1661:     TextModel(sv_samplerate_t sampleRate,
Chris@1661:               int resolution,
Chris@1661:               bool notifyOnAdd = true) :
Chris@1661:         m_sampleRate(sampleRate),
Chris@1661:         m_resolution(resolution),
Chris@1661:         m_notifier(this,
Chris@1661:                    notifyOnAdd ?
Chris@1661:                    DeferredNotifier::NOTIFY_ALWAYS :
Chris@1661:                    DeferredNotifier::NOTIFY_DEFERRED),
Chris@1661:         m_completion(100) {
Chris@147:     }
Chris@345: 
Chris@1580:     QString getTypeName() const override { return tr("Text"); }
Chris@1661:     bool isSparse() const { return true; }
Chris@1661:     bool isOK() const override { return true; }
Chris@1661: 
Chris@1661:     sv_frame_t getStartFrame() const override {
Chris@1661:         return m_events.getStartFrame();
Chris@1661:     }
Chris@1661:     sv_frame_t getEndFrame() const override {
Chris@1661:         if (m_events.isEmpty()) return 0;
Chris@1661:         sv_frame_t e = m_events.getEndFrame() + 1;
Chris@1661:         if (e % m_resolution == 0) return e;
Chris@1661:         else return (e / m_resolution + 1) * m_resolution;
Chris@1661:     }
Chris@1661:     
Chris@1661:     sv_samplerate_t getSampleRate() const override { return m_sampleRate; }
Chris@1661:     int getResolution() const { return m_resolution; }
Chris@1661:     
Chris@1671:     int getCompletion() const override { return m_completion; }
Chris@1661: 
Chris@1661:     void setCompletion(int completion, bool update = true) {
Chris@1661:         
Chris@1661:         {   QMutexLocker locker(&m_mutex);
Chris@1661:             if (m_completion == completion) return;
Chris@1661:             m_completion = completion;
Chris@1661:         }
Chris@1661: 
Chris@1661:         if (update) {
Chris@1661:             m_notifier.makeDeferredNotifications();
Chris@1661:         }
Chris@1661:         
Chris@1661:         emit completionChanged();
Chris@1661: 
Chris@1661:         if (completion == 100) {
Chris@1661:             // henceforth:
Chris@1661:             m_notifier.switchMode(DeferredNotifier::NOTIFY_ALWAYS);
Chris@1661:             emit modelChanged();
Chris@1661:         }
Chris@1661:     }
Chris@1661:     
Chris@1661:     /**
Chris@1661:      * Query methods.
Chris@1661:      */
Chris@1661: 
Chris@1661:     int getEventCount() const {
Chris@1661:         return m_events.count();
Chris@1661:     }
Chris@1661:     bool isEmpty() const {
Chris@1661:         return m_events.isEmpty();
Chris@1661:     }
Chris@1661:     bool containsEvent(const Event &e) const {
Chris@1661:         return m_events.contains(e);
Chris@1661:     }
Chris@1661:     EventVector getAllEvents() const {
Chris@1661:         return m_events.getAllEvents();
Chris@1661:     }
Chris@1661:     EventVector getEventsSpanning(sv_frame_t f, sv_frame_t duration) const {
Chris@1661:         return m_events.getEventsSpanning(f, duration);
Chris@1661:     }
Chris@1661:     EventVector getEventsCovering(sv_frame_t f) const {
Chris@1661:         return m_events.getEventsCovering(f);
Chris@1661:     }
Chris@1661:     EventVector getEventsWithin(sv_frame_t f, sv_frame_t duration,
Chris@1661:                                 int overspill = 0) const {
Chris@1661:         return m_events.getEventsWithin(f, duration, overspill);
Chris@1661:     }
Chris@1661:     EventVector getEventsStartingWithin(sv_frame_t f, sv_frame_t duration) const {
Chris@1661:         return m_events.getEventsStartingWithin(f, duration);
Chris@1661:     }
Chris@1661:     EventVector getEventsStartingAt(sv_frame_t f) const {
Chris@1661:         return m_events.getEventsStartingAt(f);
Chris@1661:     }
Chris@1661:     bool getNearestEventMatching(sv_frame_t startSearchAt,
Chris@1661:                                  std::function<bool(Event)> predicate,
Chris@1661:                                  EventSeries::Direction direction,
Chris@1661:                                  Event &found) const {
Chris@1661:         return m_events.getNearestEventMatching
Chris@1661:             (startSearchAt, predicate, direction, found);
Chris@1661:     }
Chris@1661: 
Chris@1661:     /**
Chris@1661:      * Editing methods.
Chris@1661:      */
Chris@1661:     void add(Event e) override {
Chris@1661: 
Chris@1661:         {   QMutexLocker locker(&m_mutex);
Chris@1661:             m_events.add(e.withoutDuration());
Chris@1661:         }
Chris@1661:         
Chris@1661:         m_notifier.update(e.getFrame(), m_resolution);
Chris@1661:     }
Chris@1661:     
Chris@1661:     void remove(Event e) override {
Chris@1661:         {   QMutexLocker locker(&m_mutex);
Chris@1661:             m_events.remove(e);
Chris@1661:         }
Chris@1661:         emit modelChangedWithin(e.getFrame(), e.getFrame() + m_resolution);
Chris@1661:     }
Chris@424: 
Chris@424:     /**
Chris@424:      * TabularModel methods.  
Chris@424:      */
Chris@424:     
Chris@1661:     int getRowCount() const override {
Chris@1661:         return m_events.count();
Chris@1661:     }
Chris@1661: 
Chris@1661:     int getColumnCount() const override {
Chris@424:         return 4;
Chris@424:     }
Chris@424: 
Chris@1661:     bool isColumnTimeValue(int column) const override {
Chris@1661:         return (column < 2);
Chris@1661:     }
Chris@1661: 
Chris@1661:     sv_frame_t getFrameForRow(int row) const override {
Chris@1661:         if (row < 0 || row >= m_events.count()) {
Chris@1661:             return 0;
Chris@1661:         }
Chris@1661:         Event e = m_events.getEventByIndex(row);
Chris@1661:         return e.getFrame();
Chris@1661:     }
Chris@1661: 
Chris@1661:     int getRowForFrame(sv_frame_t frame) const override {
Chris@1661:         return m_events.getIndexForEvent(Event(frame));
Chris@1661:     }
Chris@1661:     
Chris@1661:     QString getHeading(int column) const override {
Chris@424:         switch (column) {
Chris@424:         case 0: return tr("Time");
Chris@424:         case 1: return tr("Frame");
Chris@424:         case 2: return tr("Height");
Chris@424:         case 3: return tr("Label");
Chris@424:         default: return tr("Unknown");
Chris@424:         }
Chris@424:     }
Chris@424: 
Chris@1661:     SortType getSortType(int column) const override {
Chris@1661:         if (column == 3) return SortAlphabetical;
Chris@1661:         return SortNumeric;
Chris@1661:     }
Chris@1661: 
Chris@1661:     QVariant getData(int row, int column, int role) const override {
Chris@1661:         
Chris@1661:         if (row < 0 || row >= m_events.count()) {
Chris@1661:             return QVariant();
Chris@425:         }
Chris@425: 
Chris@1661:         Event e = m_events.getEventByIndex(row);
Chris@424: 
Chris@424:         switch (column) {
Chris@1661:         case 0: return adaptFrameForRole(e.getFrame(), getSampleRate(), role);
Chris@1661:         case 1: return int(e.getFrame());
Chris@1661:         case 2: return e.getValue();
Chris@1661:         case 3: return e.getLabel();
Chris@424:         default: return QVariant();
Chris@424:         }
Chris@424:     }
Chris@424: 
Chris@1661:     Command *getSetDataCommand(int row, int column, const QVariant &value, int role) override {
Chris@1661:         
Chris@1661:         if (row < 0 || row >= m_events.count()) return nullptr;
Chris@1661:         if (role != Qt::EditRole) return nullptr;
Chris@1661: 
Chris@1661:         Event e0 = m_events.getEventByIndex(row);
Chris@1661:         Event e1;
Chris@1661: 
Chris@1661:         switch (column) {
Chris@1661:         case 0: e1 = e0.withFrame(sv_frame_t(round(value.toDouble() *
Chris@1661:                                                    getSampleRate()))); break;
Chris@1661:         case 1: e1 = e0.withFrame(value.toInt()); break;
Chris@1661:         case 2: e1 = e0.withValue(float(value.toDouble())); break;
Chris@1661:         case 3: e1 = e0.withLabel(value.toString()); break;
Chris@425:         }
Chris@425: 
Chris@1661:         ChangeEventsCommand *command =
Chris@1661:             new ChangeEventsCommand(this, tr("Edit Data"));
Chris@1661:         command->remove(e0);
Chris@1661:         command->add(e1);
Chris@424:         return command->finish();
Chris@424:     }
Chris@1661:     
Chris@1661:     /**
Chris@1661:      * XmlExportable methods.
Chris@1661:      */
Chris@1661:     void toXml(QTextStream &out,
Chris@1661:                QString indent = "",
Chris@1661:                QString extraAttributes = "") const override {
Chris@424: 
Chris@1661:         Model::toXml
Chris@1661:             (out,
Chris@1661:              indent,
Chris@1661:              QString("type=\"sparse\" dimensions=\"2\" resolution=\"%1\" "
Chris@1661:                      "notifyOnAdd=\"%2\" dataset=\"%3\" subtype=\"text\" %4")
Chris@1661:              .arg(m_resolution)
Chris@1661:              .arg("true") // always true after model reaches 100% -
Chris@1661:                           // subsequent events are always notified
Chris@1661:              .arg(getObjectExportId(&m_events))
Chris@1661:              .arg(extraAttributes));
Chris@1661:         
Chris@1661:         m_events.toXml(out, indent, QString("dimensions=\"2\""));
Chris@424:     }
Chris@1661:   
Chris@1661: protected:
Chris@1661:     sv_samplerate_t m_sampleRate;
Chris@1661:     int m_resolution;
Chris@424: 
Chris@1661:     DeferredNotifier m_notifier;
Chris@1661:     int m_completion;
Chris@1661: 
Chris@1661:     EventSeries m_events;
Chris@1661: 
Chris@1661:     mutable QMutex m_mutex;  
Chris@424: 
Chris@147: };
Chris@147: 
Chris@147: 
Chris@147: #endif
Chris@147: 
Chris@147: 
Chris@147: