comparison layer/NoteLayer.cpp @ 1471:f2525e6cbdf1 by-id

More layer updates

 
 //#define DEBUG_NOTE_LAYER 1
 
 NoteLayer::NoteLayer() :
     SingleColourLayer(),
-    m_model(nullptr),
     m_editing(false),
     m_dragPointX(0),
     m_dragPointY(0),
     m_dragStartX(0),
     m_dragStartY(0),

     if (model) return model->getCompletion();
     else return 0;
 }
 
 void
-NoteLayer::setModel(ModelId model)
-{        
-    if (m_model == model) return;
-    m_model = model;
-
-    connectSignals(m_model);
-
-//    SVDEBUG << "NoteLayer::setModel(" << model << ")" << endl;
-
+NoteLayer::setModel(ModelId modelId)
+{
+    auto newModel = ModelById::getAs<NoteModel>(modelId);
+    
+    if (!modelId.isNone() && !newModel) {
+        throw std::logic_error("Not a NoteModel");
+    }
+    
+    if (m_model == modelId) return;
+    m_model = modelId;
+
+    if (newModel) {
+        connectSignals(m_model);
+    }
+    
     m_scaleMinimum = 0;
     m_scaleMaximum = 0;
 
     emit modelReplaced();
 }

 }
 
 QString
 NoteLayer::getScaleUnits() const
 {
-    if (m_model) return m_model->getScaleUnits();
+    auto model = ModelById::getAs<NoteModel>(m_model);
+    if (model) return model->getScaleUnits();
     else return "";
 }
 
 int
 NoteLayer::getPropertyRangeAndValue(const PropertyName &name,

         val = int(m_verticalScale);
 
     } else if (name == "Scale Units") {
 
         if (deflt) *deflt = 0;
-        if (m_model) {
+        auto model = ModelById::getAs<NoteModel>(m_model);
+        if (model) {
             val = UnitDatabase::getInstance()->getUnitId
-                (getScaleUnits());
+                (model->getScaleUnits());
         }
 
     } else {
 
         val = SingleColourLayer::getPropertyRangeAndValue(name, min, max, deflt);

 NoteLayer::setProperty(const PropertyName &name, int value)
 {
     if (name == "Vertical Scale") {
         setVerticalScale(VerticalScale(value));
     } else if (name == "Scale Units") {
-        if (m_model) {
-            m_model->setScaleUnits
+        auto model = ModelById::getAs<NoteModel>(m_model);
+        if (model) {
+            model->setScaleUnits
                 (UnitDatabase::getInstance()->getUnitById(value));
             emit modelChanged();
         }
     } else {
         return SingleColourLayer::setProperty(name, value);

 
 bool
 NoteLayer::getValueExtents(double &min, double &max,
                            bool &logarithmic, QString &unit) const
 {
-    if (!m_model) return false;
-    min = m_model->getValueMinimum();
-    max = m_model->getValueMaximum();
+    auto model = ModelById::getAs<NoteModel>(m_model);
+    if (!model) return false;
+    min = model->getValueMinimum();
+    max = model->getValueMaximum();
 
     if (shouldConvertMIDIToHz()) {
         unit = "Hz";
         min = Pitch::getFrequencyForPitch(int(lrint(min)));
         max = Pitch::getFrequencyForPitch(int(lrint(max + 1)));
     } else unit = getScaleUnits();
 
     if (m_verticalScale == MIDIRangeScale ||
-        m_verticalScale == LogScale) logarithmic = true;
+        m_verticalScale == LogScale) {
+        logarithmic = true;
+    }
 
     return true;
 }
 
 bool
 NoteLayer::getDisplayExtents(double &min, double &max) const
 {
-    if (!m_model || shouldAutoAlign()) return false;
+    auto model = ModelById::getAs<NoteModel>(m_model);
+    if (!model || shouldAutoAlign()) return false;
 
     if (m_verticalScale == MIDIRangeScale) {
         min = Pitch::getFrequencyForPitch(0);
         max = Pitch::getFrequencyForPitch(127);
         return true;
     }
 
     if (m_scaleMinimum == m_scaleMaximum) {
-        min = m_model->getValueMinimum();
-        max = m_model->getValueMaximum();
+        min = model->getValueMinimum();
+        max = model->getValueMaximum();
     } else {
         min = m_scaleMinimum;
         max = m_scaleMaximum;
     }
 

 }
 
 bool
 NoteLayer::setDisplayExtents(double min, double max)
 {
-    if (!m_model) return false;
+    if (m_model.isNone()) return false;
 
     if (min == max) {
         if (min == 0.f) {
             max = 1.f;
         } else {

 }
 
 int
 NoteLayer::getVerticalZoomSteps(int &defaultStep) const
 {
-    if (shouldAutoAlign()) return 0;
-    if (!m_model) return 0;
-
+    if (shouldAutoAlign() || m_model.isNone()) return 0;
     defaultStep = 0;
     return 100;
 }
 
 int
 NoteLayer::getCurrentVerticalZoomStep() const
 {
-    if (shouldAutoAlign()) return 0;
-    if (!m_model) return 0;
+    if (shouldAutoAlign() || m_model.isNone()) return 0;
 
     RangeMapper *mapper = getNewVerticalZoomRangeMapper();
     if (!mapper) return 0;
 
     double dmin, dmax;

 //!!! lots of duplication with TimeValueLayer
 
 void
 NoteLayer::setVerticalZoomStep(int step)
 {
-    if (shouldAutoAlign()) return;
-    if (!m_model) return;
+    if (shouldAutoAlign() || m_model.isNone()) return;
 
     RangeMapper *mapper = getNewVerticalZoomRangeMapper();
     if (!mapper) return;
     
     double min, max;

 }
 
 RangeMapper *
 NoteLayer::getNewVerticalZoomRangeMapper() const
 {
-    if (!m_model) return nullptr;
+    if (m_model.isNone()) return nullptr;
     
     RangeMapper *mapper;
 
     double min, max;
     bool logarithmic;

 }
 
 EventVector
 NoteLayer::getLocalPoints(LayerGeometryProvider *v, int x) const
 {
-    if (!m_model) return {};
+    auto model = ModelById::getAs<NoteModel>(m_model);
+    if (!model) return {};
     
     sv_frame_t frame = v->getFrameForX(x);
 
-    EventVector local = m_model->getEventsCovering(frame);
+    EventVector local = model->getEventsCovering(frame);
     if (!local.empty()) return local;
 
     int fuzz = ViewManager::scalePixelSize(2);
     sv_frame_t start = v->getFrameForX(x - fuzz);
     sv_frame_t end = v->getFrameForX(x + fuzz);
 
-    local = m_model->getEventsStartingWithin(frame, end - frame);
+    local = model->getEventsStartingWithin(frame, end - frame);
     if (!local.empty()) return local;
 
-    local = m_model->getEventsSpanning(start, frame - start);
+    local = model->getEventsSpanning(start, frame - start);
     if (!local.empty()) return local;
 
     return {};
 }
 
 bool
 NoteLayer::getPointToDrag(LayerGeometryProvider *v, int x, int y, Event &point) const
 {
-    if (!m_model) return false;
+    auto model = ModelById::getAs<NoteModel>(m_model);
+    if (!model) return false;
 
     sv_frame_t frame = v->getFrameForX(x);
 
-    EventVector onPoints = m_model->getEventsCovering(frame);
+    EventVector onPoints = model->getEventsCovering(frame);
     if (onPoints.empty()) return false;
 
     int nearestDistance = -1;
     for (const auto &p: onPoints) {
         int distance = getYForValue(v, p.getValue()) - y;

 QString
 NoteLayer::getFeatureDescription(LayerGeometryProvider *v, QPoint &pos) const
 {
     int x = pos.x();
 
-    if (!m_model || !m_model->getSampleRate()) return "";
+    auto model = ModelById::getAs<NoteModel>(m_model);
+    if (!model || !model->getSampleRate()) return "";
 
     EventVector points = getLocalPoints(v, x);
 
     if (points.empty()) {
-        if (!m_model->isReady()) {
+        if (!model->isReady()) {
             return tr("In progress");
         } else {
             return tr("No local points");
         }
     }

     for (i = points.begin(); i != points.end(); ++i) {
 
         int y = getYForValue(v, i->getValue());
         int h = 3;
 
-        if (m_model->getValueQuantization() != 0.0) {
+        if (model->getValueQuantization() != 0.0) {
             h = y - getYForValue
-                (v, i->getValue() + m_model->getValueQuantization());
+                (v, i->getValue() + model->getValueQuantization());
             if (h < 3) h = 3;
         }
 
         if (pos.y() >= y - h && pos.y() <= y) {
             note = *i;

     }
 
     if (i == points.end()) return tr("No local points");
 
     RealTime rt = RealTime::frame2RealTime(note.getFrame(),
-                                           m_model->getSampleRate());
+                                           model->getSampleRate());
     RealTime rd = RealTime::frame2RealTime(note.getDuration(),
-                                           m_model->getSampleRate());
+                                           model->getSampleRate());
     
     QString pitchText;
 
     float value = note.getValue();
     

 bool
 NoteLayer::snapToFeatureFrame(LayerGeometryProvider *v, sv_frame_t &frame,
                               int &resolution,
                               SnapType snap) const
 {
-    if (!m_model) {
+    auto model = ModelById::getAs<NoteModel>(m_model);
+    if (!model) {
         return Layer::snapToFeatureFrame(v, frame, resolution, snap);
     }
 
     // SnapLeft / SnapRight: return frame of nearest feature in that
     // direction no matter how far away
     //
     // SnapNeighbouring: return frame of feature that would be used in
     // an editing operation, i.e. closest feature in either direction
     // but only if it is "close enough"
 
-    resolution = m_model->getResolution();
+    resolution = model->getResolution();
 
     if (snap == SnapNeighbouring) {
         EventVector points = getLocalPoints(v, v->getXForFrame(frame));
         if (points.empty()) return false;
         frame = points.begin()->getFrame();
         return true;
     }    
 
     Event e;
-    if (m_model->getNearestEventMatching
+    if (model->getNearestEventMatching
         (frame,
          [](Event) { return true; },
          snap == SnapLeft ? EventSeries::Backward : EventSeries::Forward,
          e)) {
         frame = e.getFrame();

 {
     min = 0.0;
     max = 0.0;
     log = false;
 
+    auto model = ModelById::getAs<NoteModel>(m_model);
+    if (!model) return;
+    
     QString queryUnits;
     if (shouldConvertMIDIToHz()) queryUnits = "Hz";
     else queryUnits = getScaleUnits();
 
     if (shouldAutoAlign()) {
 
         if (!v->getValueExtents(queryUnits, min, max, log)) {
 
-            min = m_model->getValueMinimum();
-            max = m_model->getValueMaximum();
+            min = model->getValueMinimum();
+            max = model->getValueMaximum();
 
             if (shouldConvertMIDIToHz()) {
                 min = Pitch::getFrequencyForPitch(int(lrint(min)));
                 max = Pitch::getFrequencyForPitch(int(lrint(max + 1)));
             }

 }
 
 bool
 NoteLayer::shouldAutoAlign() const
 {
-    if (!m_model) return false;
+    if (m_model.isNone()) return false;
     return (m_verticalScale == AutoAlignScale);
 }
 
 void
 NoteLayer::paint(LayerGeometryProvider *v, QPainter &paint, QRect rect) const
 {
-    if (!m_model || !m_model->isOK()) return;
-
-    sv_samplerate_t sampleRate = m_model->getSampleRate();
+    auto model = ModelById::getAs<NoteModel>(m_model);
+    if (!model || !model->isOK()) return;
+
+    sv_samplerate_t sampleRate = model->getSampleRate();
     if (!sampleRate) return;
 
 //    Profiler profiler("NoteLayer::paint", true);
 
     int x0 = rect.left(), x1 = rect.right();
     sv_frame_t frame0 = v->getFrameForX(x0);
     sv_frame_t frame1 = v->getFrameForX(x1);
 
-    EventVector points(m_model->getEventsSpanning(frame0, frame1 - frame0));
+    EventVector points(model->getEventsSpanning(frame0, frame1 - frame0));
     if (points.empty()) return;
 
     paint.setPen(getBaseQColor());
 
     QColor brushColour(getBaseQColor());
     brushColour.setAlpha(80);
 
 //    SVDEBUG << "NoteLayer::paint: resolution is "
-//              << m_model->getResolution() << " frames" << endl;
-
-    double min = m_model->getValueMinimum();
-    double max = m_model->getValueMaximum();
+//              << model->getResolution() << " frames" << endl;
+
+    double min = model->getValueMinimum();
+    double max = model->getValueMaximum();
     if (max == min) max = min + 1.0;
 
     QPoint localPos;
     Event illuminatePoint;
     bool shouldIlluminate = false;

         int x = v->getXForFrame(p.getFrame());
         int y = getYForValue(v, p.getValue());
         int w = v->getXForFrame(p.getFrame() + p.getDuration()) - x;
         int h = 3;
         
-        if (m_model->getValueQuantization() != 0.0) {
-            h = y - getYForValue(v, p.getValue() + m_model->getValueQuantization());
+        if (model->getValueQuantization() != 0.0) {
+            h = y - getYForValue(v, p.getValue() + model->getValueQuantization());
             if (h < 3) h = 3;
         }
 
         if (w < 1) w = 1;
         paint.setPen(getBaseQColor());

 
         if (shouldIlluminate && illuminatePoint == p) {
 
             paint.setPen(v->getForeground());
             paint.setBrush(v->getForeground());
+
+    // Qt 5.13 deprecates QFontMetrics::width(), but its suggested
+    // replacement (horizontalAdvance) was only added in Qt 5.11
+    // which is too new for us
+#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
 
             QString vlabel = QString("%1%2").arg(p.getValue()).arg(getScaleUnits());
             PaintAssistant::drawVisibleText(v, paint, 
                                x - paint.fontMetrics().width(vlabel) - 2,
                                y + paint.fontMetrics().height()/2
                                  - paint.fontMetrics().descent(), 
                                vlabel, PaintAssistant::OutlinedText);
 
             QString hlabel = RealTime::frame2RealTime
-                (p.getFrame(), m_model->getSampleRate()).toText(true).c_str();
+                (p.getFrame(), model->getSampleRate()).toText(true).c_str();
             PaintAssistant::drawVisibleText(v, paint, 
                                x,
                                y - h/2 - paint.fontMetrics().descent() - 2,
                                hlabel, PaintAssistant::OutlinedText);
         }

 }
 
 int
 NoteLayer::getVerticalScaleWidth(LayerGeometryProvider *v, bool, QPainter &paint) const
 {
-    if (!m_model) {
+    if (m_model.isNone()) {
         return 0;
     }
 
     if (shouldAutoAlign() && !valueExtentsMatchMine(v)) {
         return 0;

 }
 
 void
 NoteLayer::paintVerticalScale(LayerGeometryProvider *v, bool, QPainter &paint, QRect) const
 {
-    if (!m_model || m_model->isEmpty()) return;
+    auto model = ModelById::getAs<NoteModel>(m_model);
+    if (!model || model->isEmpty()) return;
 
     QString unit;
     double min, max;
     bool logarithmic;
 

 void
 NoteLayer::drawStart(LayerGeometryProvider *v, QMouseEvent *e)
 {
 //    SVDEBUG << "NoteLayer::drawStart(" << e->x() << "," << e->y() << ")" << endl;
 
-    if (!m_model) return;
+    auto model = ModelById::getAs<NoteModel>(m_model);
+    if (!model) return;
 
     sv_frame_t frame = v->getFrameForX(e->x());
     if (frame < 0) frame = 0;
-    frame = frame / m_model->getResolution() * m_model->getResolution();
+    frame = frame / model->getResolution() * model->getResolution();
 
     double value = getValueForY(v, e->y());
 
     m_editingPoint = Event(frame, float(value), 0, 0.8f, tr("New Point"));
     m_originalPoint = m_editingPoint;
 
     if (m_editingCommand) finish(m_editingCommand);
-    m_editingCommand = new ChangeEventsCommand(m_model, tr("Draw Point"));
+    m_editingCommand = new ChangeEventsCommand(m_model.untyped, tr("Draw Point"));
     m_editingCommand->add(m_editingPoint);
 
     m_editing = true;
 }
 
 void
 NoteLayer::drawDrag(LayerGeometryProvider *v, QMouseEvent *e)
 {
 //    SVDEBUG << "NoteLayer::drawDrag(" << e->x() << "," << e->y() << ")" << endl;
 
-    if (!m_model || !m_editing) return;
+    auto model = ModelById::getAs<NoteModel>(m_model);
+    if (!model || !m_editing) return;
 
     sv_frame_t frame = v->getFrameForX(e->x());
     if (frame < 0) frame = 0;
-    frame = frame / m_model->getResolution() * m_model->getResolution();
+    frame = frame / model->getResolution() * model->getResolution();
 
     double newValue = getValueForY(v, e->y());
 
     sv_frame_t newFrame = m_editingPoint.getFrame();
     sv_frame_t newDuration = frame - newFrame;

 
 void
 NoteLayer::drawEnd(LayerGeometryProvider *, QMouseEvent *)
 {
 //    SVDEBUG << "NoteLayer::drawEnd(" << e->x() << "," << e->y() << ")" << endl;
-    if (!m_model || !m_editing) return;
+    auto model = ModelById::getAs<NoteModel>(m_model);
+    if (!model || !m_editing) return;
     finish(m_editingCommand);
     m_editingCommand = nullptr;
     m_editing = false;
 }
 
 void
 NoteLayer::eraseStart(LayerGeometryProvider *v, QMouseEvent *e)
 {
-    if (!m_model) return;
+    auto model = ModelById::getAs<NoteModel>(m_model);
+    if (!model) return;
 
     if (!getPointToDrag(v, e->x(), e->y(), m_editingPoint)) return;
 
     if (m_editingCommand) {
         finish(m_editingCommand);

 }
 
 void
 NoteLayer::eraseEnd(LayerGeometryProvider *v, QMouseEvent *e)
 {
-    if (!m_model || !m_editing) return;
+    auto model = ModelById::getAs<NoteModel>(m_model);
+    if (!model || !m_editing) return;
 
     m_editing = false;
 
     Event p(0);
     if (!getPointToDrag(v, e->x(), e->y(), p)) return;
     if (p.getFrame() != m_editingPoint.getFrame() ||
         p.getValue() != m_editingPoint.getValue()) return;
 
-    m_editingCommand = new ChangeEventsCommand(m_model, tr("Erase Point"));
+    m_editingCommand = new ChangeEventsCommand(m_model.untyped, tr("Erase Point"));
 
     m_editingCommand->remove(m_editingPoint);
 
     finish(m_editingCommand);
     m_editingCommand = nullptr;

 void
 NoteLayer::editStart(LayerGeometryProvider *v, QMouseEvent *e)
 {
 //    SVDEBUG << "NoteLayer::editStart(" << e->x() << "," << e->y() << ")" << endl;
 
-    if (!m_model) return;
+    auto model = ModelById::getAs<NoteModel>(m_model);
+    if (!model) return;
 
     if (!getPointToDrag(v, e->x(), e->y(), m_editingPoint)) return;
     m_originalPoint = m_editingPoint;
 
     m_dragPointX = v->getXForFrame(m_editingPoint.getFrame());

 void
 NoteLayer::editDrag(LayerGeometryProvider *v, QMouseEvent *e)
 {
 //    SVDEBUG << "NoteLayer::editDrag(" << e->x() << "," << e->y() << ")" << endl;
 
-    if (!m_model || !m_editing) return;
+    auto model = ModelById::getAs<NoteModel>(m_model);
+    if (!model || !m_editing) return;
 
     int xdist = e->x() - m_dragStartX;
     int ydist = e->y() - m_dragStartY;
     int newx = m_dragPointX + xdist;
     int newy = m_dragPointY + ydist;
 
     sv_frame_t frame = v->getFrameForX(newx);
     if (frame < 0) frame = 0;
-    frame = frame / m_model->getResolution() * m_model->getResolution();
+    frame = frame / model->getResolution() * model->getResolution();
 
     double value = getValueForY(v, newy);
 
     if (!m_editingCommand) {
-        m_editingCommand = new ChangeEventsCommand(m_model,
-                                                      tr("Drag Point"));
+        m_editingCommand = new ChangeEventsCommand
+            (m_model.untyped, tr("Drag Point"));
     }
 
     m_editingCommand->remove(m_editingPoint);
     m_editingPoint = m_editingPoint
         .withFrame(frame)

 
 void
 NoteLayer::editEnd(LayerGeometryProvider *, QMouseEvent *)
 {
 //    SVDEBUG << "NoteLayer::editEnd(" << e->x() << "," << e->y() << ")" << endl;
-    if (!m_model || !m_editing) return;
+    auto model = ModelById::getAs<NoteModel>(m_model);
+    if (!model || !m_editing) return;
 
     if (m_editingCommand) {
 
         QString newName = m_editingCommand->getName();
 

 }
 
 bool
 NoteLayer::editOpen(LayerGeometryProvider *v, QMouseEvent *e)
 {
-    if (!m_model) return false;
+    auto model = ModelById::getAs<NoteModel>(m_model);
+    if (!model) return false;
 
     Event note(0);
     if (!getPointToDrag(v, e->x(), e->y(), note)) return false;
 
 //    Event note = *points.begin();
 
     ItemEditDialog *dialog = new ItemEditDialog
-        (m_model->getSampleRate(),
+        (model->getSampleRate(),
          ItemEditDialog::ShowTime |
          ItemEditDialog::ShowDuration |
          ItemEditDialog::ShowValue |
          ItemEditDialog::ShowText,
          getScaleUnits());

             .withValue(dialog->getValue())
             .withDuration(dialog->getFrameDuration())
             .withLabel(dialog->getText());
         
         ChangeEventsCommand *command = new ChangeEventsCommand
-            (m_model, tr("Edit Point"));
+            (m_model.untyped, tr("Edit Point"));
         command->remove(note);
         command->add(newNote);
         finish(command);
     }
 

 }
 
 void
 NoteLayer::moveSelection(Selection s, sv_frame_t newStartFrame)
 {
-    if (!m_model) return;
+    auto model = ModelById::getAs<NoteModel>(m_model);
+    if (!model) return;
 
     ChangeEventsCommand *command =
-        new ChangeEventsCommand(m_model, tr("Drag Selection"));
+        new ChangeEventsCommand(m_model.untyped, tr("Drag Selection"));
 
     EventVector points =
-        m_model->getEventsStartingWithin(s.getStartFrame(), s.getDuration());
+        model->getEventsStartingWithin(s.getStartFrame(), s.getDuration());
 
     for (Event p: points) {
         command->remove(p);
         Event moved = p.withFrame(p.getFrame() +
                                   newStartFrame - s.getStartFrame());

 }
 
 void
 NoteLayer::resizeSelection(Selection s, Selection newSize)
 {
-    if (!m_model || !s.getDuration()) return;
+    auto model = ModelById::getAs<NoteModel>(m_model);
+    if (!model || !s.getDuration()) return;
 
     ChangeEventsCommand *command =
-        new ChangeEventsCommand(m_model, tr("Resize Selection"));
+        new ChangeEventsCommand(m_model.untyped, tr("Resize Selection"));
 
     EventVector points =
-        m_model->getEventsStartingWithin(s.getStartFrame(), s.getDuration());
+        model->getEventsStartingWithin(s.getStartFrame(), s.getDuration());
 
     double ratio = double(newSize.getDuration()) / double(s.getDuration());
     double oldStart = double(s.getStartFrame());
     double newStart = double(newSize.getStartFrame());
     

 }
 
 void
 NoteLayer::deleteSelection(Selection s)
 {
-    if (!m_model) return;
+    auto model = ModelById::getAs<NoteModel>(m_model);
+    if (!model) return;
 
     ChangeEventsCommand *command =
-        new ChangeEventsCommand(m_model, tr("Delete Selected Points"));
+        new ChangeEventsCommand(m_model.untyped, tr("Delete Selected Points"));
 
     EventVector points =
-        m_model->getEventsStartingWithin(s.getStartFrame(), s.getDuration());
+        model->getEventsStartingWithin(s.getStartFrame(), s.getDuration());
 
     for (Event p: points) {
         command->remove(p);
     }
 

 }    
 
 void
 NoteLayer::copy(LayerGeometryProvider *v, Selection s, Clipboard &to)
 {
-    if (!m_model) return;
+    auto model = ModelById::getAs<NoteModel>(m_model);
+    if (!model) return;
 
     EventVector points =
-        m_model->getEventsStartingWithin(s.getStartFrame(), s.getDuration());
+        model->getEventsStartingWithin(s.getStartFrame(), s.getDuration());
 
     for (Event p: points) {
         to.addPoint(p.withReferenceFrame(alignToReference(v, p.getFrame())));
     }
 }
 
 bool
 NoteLayer::paste(LayerGeometryProvider *v, const Clipboard &from,
                  sv_frame_t /* frameOffset */, bool /* interactive */)
 {
-    if (!m_model) return false;
+    auto model = ModelById::getAs<NoteModel>(m_model);
+    if (!model) return false;
 
     const EventVector &points = from.getPoints();
 
     bool realign = false;
 

             realign = true;
         }
     }
 
     ChangeEventsCommand *command =
-        new ChangeEventsCommand(m_model, tr("Paste"));
+        new ChangeEventsCommand(m_model.untyped, tr("Paste"));
 
     for (EventVector::const_iterator i = points.begin();
          i != points.end(); ++i) {
 
         sv_frame_t frame = 0;

         }
 
         Event p = *i;
         Event newPoint = p;
         if (!p.hasValue()) {
-            newPoint = newPoint.withValue((m_model->getValueMinimum() +
-                                           m_model->getValueMaximum()) / 2);
+            newPoint = newPoint.withValue((model->getValueMinimum() +
+                                           model->getValueMaximum()) / 2);
         }
         if (!p.hasDuration()) {
             sv_frame_t nextFrame = frame;
             EventVector::const_iterator j = i;
             for (; j != points.end(); ++j) {

             }
             if (j != points.end()) {
                 nextFrame = j->getFrame();
             }
             if (nextFrame == frame) {
-                newPoint = newPoint.withDuration(m_model->getResolution());
+                newPoint = newPoint.withDuration(model->getResolution());
             } else {
                 newPoint = newPoint.withDuration(nextFrame - frame);
             }
         }
         

 }
 
 void
 NoteLayer::addNoteOff(sv_frame_t frame, int pitch)
 {
+    auto model = ModelById::getAs<NoteModel>(m_model);
+
     for (NoteSet::iterator i = m_pendingNoteOns.begin();
          i != m_pendingNoteOns.end(); ++i) {
 
         Event p = *i;
 
         if (lrintf(p.getValue()) == pitch) {
             m_pendingNoteOns.erase(i);
             Event note = p.withDuration(frame - p.getFrame());
-            if (m_model) {
+            if (model) {
                 ChangeEventsCommand *c = new ChangeEventsCommand
-                    (m_model, tr("Record Note"));
+                    (m_model.untyped, tr("Record Note"));
                 c->add(note);
                 // execute and bundle:
                 CommandHistory::getInstance()->addCommand(c, true, true);
             }
             break;