comparison layer/FlexiNoteLayer.cpp @ 771:a964151832a7

Merge from branch tony_integration

+/* -*- 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 2006 Chris Cannam.
+    
+    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.
+*/
+
+#include "FlexiNoteLayer.h"
+
+#include "data/model/Model.h"
+#include "data/model/SparseTimeValueModel.h"
+#include "base/RealTime.h"
+#include "base/Profiler.h"
+#include "base/Pitch.h"
+#include "base/LogRange.h"
+#include "base/RangeMapper.h"
+#include "ColourDatabase.h"
+#include "view/View.h"
+
+#include "PianoScale.h"
+#include "LinearNumericalScale.h"
+#include "LogNumericalScale.h"
+
+#include "data/model/FlexiNoteModel.h"
+
+#include "widgets/ItemEditDialog.h"
+#include "widgets/TextAbbrev.h"
+
+#include <QPainter>
+#include <QPainterPath>
+#include <QMouseEvent>
+#include <QTextStream>
+#include <QMessageBox>
+
+#include <iostream>
+#include <cmath>
+#include <utility>
+#include <limits> // GF: included to compile std::numerical_limits on linux
+#include <vector>
+
+
+FlexiNoteLayer::FlexiNoteLayer() :
+    SingleColourLayer(),
+
+    // m_model(0),
+    // m_editing(false),
+    // m_originalPoint(0, 0.0, 0, 1.f, tr("New Point")),
+    // m_editingPoint(0, 0.0, 0, 1.f, tr("New Point")),
+    // m_editingCommand(0),
+    // m_verticalScale(AutoAlignScale),
+    // m_scaleMinimum(0),
+    // m_scaleMaximum(0)
+
+    m_model(0),
+    m_editing(false),
+    m_originalPoint(0, 0.0, 0, 1.f, tr("New Point")),
+    m_editingPoint(0, 0.0, 0, 1.f, tr("New Point")),
+    m_editingCommand(0),
+    m_verticalScale(AutoAlignScale),
+    m_editMode(DragNote),
+    m_scaleMinimum(34), 
+    m_scaleMaximum(77),
+    m_intelligentActions(true)
+{
+}
+
+void
+FlexiNoteLayer::setModel(FlexiNoteModel *model) 
+{
+    if (m_model == model) return;
+    m_model = model;
+
+    connectSignals(m_model);
+
+    // m_scaleMinimum = 0;
+    // m_scaleMaximum = 0;
+
+    emit modelReplaced();
+}
+
+Layer::PropertyList
+FlexiNoteLayer::getProperties() const
+{
+    PropertyList list = SingleColourLayer::getProperties();
+    list.push_back("Vertical Scale");
+    list.push_back("Scale Units");
+    return list;
+}
+
+QString
+FlexiNoteLayer::getPropertyLabel(const PropertyName &name) const
+{
+    if (name == "Vertical Scale") return tr("Vertical Scale");
+    if (name == "Scale Units") return tr("Scale Units");
+    return SingleColourLayer::getPropertyLabel(name);
+}
+
+Layer::PropertyType
+FlexiNoteLayer::getPropertyType(const PropertyName &name) const
+{
+    if (name == "Scale Units") return UnitsProperty;
+    if (name == "Vertical Scale") return ValueProperty;
+    return SingleColourLayer::getPropertyType(name);
+}
+
+QString
+FlexiNoteLayer::getPropertyGroupName(const PropertyName &name) const
+{
+    if (name == "Vertical Scale" || name == "Scale Units") {
+        return tr("Scale");
+    }
+    return SingleColourLayer::getPropertyGroupName(name);
+}
+
+QString
+FlexiNoteLayer::getScaleUnits() const
+{
+    if (m_model) return m_model->getScaleUnits();
+    else return "";
+}
+
+int
+FlexiNoteLayer::getPropertyRangeAndValue(const PropertyName &name,
+                                         int *min, int *max, int *deflt) const
+{
+    int val = 0;
+
+    if (name == "Vertical Scale") {
+    
+        if (min) *min = 0;
+        if (max) *max = 3;
+        if (deflt) *deflt = int(AutoAlignScale);
+    
+        val = int(m_verticalScale);
+
+    } else if (name == "Scale Units") {
+
+        if (deflt) *deflt = 0;
+        if (m_model) {
+            val = UnitDatabase::getInstance()->getUnitId
+                (getScaleUnits());
+        }
+
+    } else {
+
+        val = SingleColourLayer::getPropertyRangeAndValue(name, min, max, deflt);
+    }
+
+    return val;
+}
+
+QString
+FlexiNoteLayer::getPropertyValueLabel(const PropertyName &name,
+                                      int value) const
+{
+    if (name == "Vertical Scale") {
+        switch (value) {
+        default:
+        case 0: return tr("Auto-Align");
+        case 1: return tr("Linear");
+        case 2: return tr("Log");
+        case 3: return tr("MIDI Notes");
+        }
+    }
+    return SingleColourLayer::getPropertyValueLabel(name, value);
+}
+
+void
+FlexiNoteLayer::setProperty(const PropertyName &name, int value)
+{
+    if (name == "Vertical Scale") {
+        setVerticalScale(VerticalScale(value));
+    } else if (name == "Scale Units") {
+        if (m_model) {
+            m_model->setScaleUnits
+                (UnitDatabase::getInstance()->getUnitById(value));
+            emit modelChanged();
+        }
+    } else {
+        return SingleColourLayer::setProperty(name, value);
+    }
+}
+
+void
+FlexiNoteLayer::setVerticalScale(VerticalScale scale)
+{
+    if (m_verticalScale == scale) return;
+    m_verticalScale = scale;
+    emit layerParametersChanged();
+}
+
+bool
+FlexiNoteLayer::isLayerScrollable(const View *v) const
+{
+    QPoint discard;
+    return !v->shouldIlluminateLocalFeatures(this, discard);
+}
+
+bool
+FlexiNoteLayer::shouldConvertMIDIToHz() const
+{
+    QString unit = getScaleUnits();
+    return (unit != "Hz");
+//    if (unit == "" ||
+//        unit.startsWith("MIDI") ||
+//        unit.startsWith("midi")) return true;
+//    return false;
+}
+
+bool
+FlexiNoteLayer::getValueExtents(float &min, float &max,
+                                bool &logarithmic, QString &unit) const
+{
+    if (!m_model) return false;
+    min = m_model->getValueMinimum();
+    max = m_model->getValueMaximum();
+
+    if (shouldConvertMIDIToHz()) {
+        unit = "Hz";
+        min = Pitch::getFrequencyForPitch(lrintf(min));
+        max = Pitch::getFrequencyForPitch(lrintf(max + 1));
+    } else unit = getScaleUnits();
+
+    if (m_verticalScale == MIDIRangeScale ||
+        m_verticalScale == LogScale) logarithmic = true;
+
+    return true;
+}
+
+bool
+FlexiNoteLayer::getDisplayExtents(float &min, float &max) const
+{
+    if (!m_model || shouldAutoAlign()) {
+//        std::cerr << "No model or shouldAutoAlign()" << std::endl;
+        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();
+    } else {
+        min = m_scaleMinimum;
+        max = m_scaleMaximum;
+    }
+
+    if (shouldConvertMIDIToHz()) {
+        min = Pitch::getFrequencyForPitch(lrintf(min));
+        max = Pitch::getFrequencyForPitch(lrintf(max + 1));
+    }
+
+#ifdef DEBUG_NOTE_LAYER
+    cerr << "NoteLayer::getDisplayExtents: min = " << min << ", max = " << max << " (m_scaleMinimum = " << m_scaleMinimum << ", m_scaleMaximum = " << m_scaleMaximum << ")" << endl;
+#endif
+
+    return true;
+}
+
+bool
+FlexiNoteLayer::setDisplayExtents(float min, float max)
+{
+    if (!m_model) return false;
+
+    if (min == max) {
+        if (min == 0.f) {
+            max = 1.f;
+        } else {
+            max = min * 1.0001;
+        }
+    }
+
+    m_scaleMinimum = min;
+    m_scaleMaximum = max;
+
+#ifdef DEBUG_NOTE_LAYER
+    cerr << "FlexiNoteLayer::setDisplayExtents: min = " << min << ", max = " << max << endl;
+#endif
+    
+    emit layerParametersChanged();
+    return true;
+}
+
+int
+FlexiNoteLayer::getVerticalZoomSteps(int &defaultStep) const
+{
+    if (shouldAutoAlign()) return 0;
+    if (!m_model) return 0;
+
+    defaultStep = 0;
+    return 100;
+}
+
+int
+FlexiNoteLayer::getCurrentVerticalZoomStep() const
+{
+    if (shouldAutoAlign()) return 0;
+    if (!m_model) return 0;
+
+    RangeMapper *mapper = getNewVerticalZoomRangeMapper();
+    if (!mapper) return 0;
+
+    float dmin, dmax;
+    getDisplayExtents(dmin, dmax);
+
+    int nr = mapper->getPositionForValue(dmax - dmin);
+
+    delete mapper;
+
+    return 100 - nr;
+}
+
+//!!! lots of duplication with TimeValueLayer
+
+void
+FlexiNoteLayer::setVerticalZoomStep(int step)
+{
+    if (shouldAutoAlign()) return;
+    if (!m_model) return;
+
+    RangeMapper *mapper = getNewVerticalZoomRangeMapper();
+    if (!mapper) return;
+    
+    float min, max;
+    bool logarithmic;
+    QString unit;
+    getValueExtents(min, max, logarithmic, unit);
+    
+    float dmin, dmax;
+    getDisplayExtents(dmin, dmax);
+
+    float newdist = mapper->getValueForPosition(100 - step);
+
+    float newmin, newmax;
+
+    if (logarithmic) {
+
+        // see SpectrogramLayer::setVerticalZoomStep
+
+        newmax = (newdist + sqrtf(newdist*newdist + 4*dmin*dmax)) / 2;
+        newmin = newmax - newdist;
+
+//        cerr << "newmin = " << newmin << ", newmax = " << newmax << endl;
+
+    } else {
+        float dmid = (dmax + dmin) / 2;
+        newmin = dmid - newdist / 2;
+        newmax = dmid + newdist / 2;
+    }
+
+    if (newmin < min) {
+        newmax += (min - newmin);
+        newmin = min;
+    }
+    if (newmax > max) {
+        newmax = max;
+    }
+    
+#ifdef DEBUG_NOTE_LAYER
+    cerr << "FlexiNoteLayer::setVerticalZoomStep: " << step << ": " << newmin << " -> " << newmax << " (range " << newdist << ")" << endl;
+#endif
+
+    setDisplayExtents(newmin, newmax);
+}
+
+RangeMapper *
+FlexiNoteLayer::getNewVerticalZoomRangeMapper() const
+{
+    if (!m_model) return 0;
+    
+    RangeMapper *mapper;
+
+    float min, max;
+    bool logarithmic;
+    QString unit;
+    getValueExtents(min, max, logarithmic, unit);
+
+    if (min == max) return 0;
+    
+    if (logarithmic) {
+        mapper = new LogRangeMapper(0, 100, min, max, unit);
+    } else {
+        mapper = new LinearRangeMapper(0, 100, min, max, unit);
+    }
+
+    return mapper;
+}
+
+FlexiNoteModel::PointList
+FlexiNoteLayer::getLocalPoints(View *v, int x) const
+{
+    if (!m_model) return FlexiNoteModel::PointList();
+
+    long frame = v->getFrameForX(x);
+
+    FlexiNoteModel::PointList onPoints =
+        m_model->getPoints(frame);
+
+    if (!onPoints.empty()) {
+        return onPoints;
+    }
+
+    FlexiNoteModel::PointList prevPoints =
+        m_model->getPreviousPoints(frame);
+    FlexiNoteModel::PointList nextPoints =
+        m_model->getNextPoints(frame);
+
+    FlexiNoteModel::PointList usePoints = prevPoints;
+
+    if (prevPoints.empty()) {
+        usePoints = nextPoints;
+    } else if (long(prevPoints.begin()->frame) < v->getStartFrame() &&
+               !(nextPoints.begin()->frame > v->getEndFrame())) {
+        usePoints = nextPoints;
+    } else if (long(nextPoints.begin()->frame) - frame <
+               frame - long(prevPoints.begin()->frame)) {
+        usePoints = nextPoints;
+    }
+
+    if (!usePoints.empty()) {
+        int fuzz = 2;
+        int px = v->getXForFrame(usePoints.begin()->frame);
+        if ((px > x && px - x > fuzz) ||
+            (px < x && x - px > fuzz + 1)) {
+            usePoints.clear();
+        }
+    }
+
+    return usePoints;
+}
+
+bool
+FlexiNoteLayer::getPointToDrag(View *v, int x, int y, FlexiNoteModel::Point &p) const
+{
+    if (!m_model) return false;
+
+    long frame = v->getFrameForX(x);
+
+    FlexiNoteModel::PointList onPoints = m_model->getPoints(frame);
+    if (onPoints.empty()) return false;
+
+//    cerr << "frame " << frame << ": " << onPoints.size() << " candidate points" << endl;
+
+    int nearestDistance = -1;
+
+    for (FlexiNoteModel::PointList::const_iterator i = onPoints.begin();
+         i != onPoints.end(); ++i) {
+        
+        int distance = getYForValue(v, (*i).value) - y;
+        if (distance < 0) distance = -distance;
+        if (nearestDistance == -1 || distance < nearestDistance) {
+            nearestDistance = distance;
+            p = *i;
+        }
+    }
+
+    return true;
+}
+
+bool
+FlexiNoteLayer::getNoteToEdit(View *v, int x, int y, FlexiNoteModel::Point &p) const
+{
+    // GF: find the note that is closest to the cursor
+    if (!m_model) return false;
+
+    long frame = v->getFrameForX(x);
+
+    FlexiNoteModel::PointList onPoints = m_model->getPoints(frame);
+    if (onPoints.empty()) return false;
+
+//    std::cerr << "frame " << frame << ": " << onPoints.size() << " candidate points" << std::endl;
+
+    int nearestDistance = -1;
+
+    for (FlexiNoteModel::PointList::const_iterator i = onPoints.begin();
+         i != onPoints.end(); ++i) {
+        
+        int distance = getYForValue(v, (*i).value) - y;
+        if (distance < 0) distance = -distance;
+        if (nearestDistance == -1 || distance < nearestDistance) {
+            nearestDistance = distance;
+            p = *i;
+        }
+    }
+
+    return true;
+}
+
+QString
+FlexiNoteLayer::getFeatureDescription(View *v, QPoint &pos) const
+{
+    int x = pos.x();
+
+    if (!m_model || !m_model->getSampleRate()) return "";
+
+    FlexiNoteModel::PointList points = getLocalPoints(v, x);
+
+    if (points.empty()) {
+        if (!m_model->isReady()) {
+            return tr("In progress");
+        } else {
+            return tr("No local points");
+        }
+    }
+
+    FlexiNote note(0);
+    FlexiNoteModel::PointList::iterator i;
+
+    for (i = points.begin(); i != points.end(); ++i) {
+
+        int y = getYForValue(v, i->value);
+        int h = NOTE_HEIGHT; // GF: larger notes
+
+        if (m_model->getValueQuantization() != 0.0) {
+            h = y - getYForValue(v, i->value + m_model->getValueQuantization());
+            if (h < NOTE_HEIGHT) h = NOTE_HEIGHT;
+        }
+
+        // GF: this is not quite correct
+        if (pos.y() >= y - 4 && pos.y() <= y + h) {
+            note = *i;
+            break;
+        }
+    }
+
+    if (i == points.end()) return tr("No local points");
+
+    RealTime rt = RealTime::frame2RealTime(note.frame,
+                                           m_model->getSampleRate());
+    RealTime rd = RealTime::frame2RealTime(note.duration,
+                                           m_model->getSampleRate());
+    
+    QString pitchText;
+
+    if (shouldConvertMIDIToHz()) {
+
+        int mnote = lrintf(note.value);
+        int cents = lrintf((note.value - mnote) * 100);
+        float freq = Pitch::getFrequencyForPitch(mnote, cents);
+        pitchText = tr("%1 (%2, %3 Hz)")
+            .arg(Pitch::getPitchLabel(mnote, cents))
+            .arg(mnote)
+            .arg(freq);
+
+    } else if (getScaleUnits() == "Hz") {
+
+        pitchText = tr("%1 Hz (%2, %3)")
+            .arg(note.value)
+            .arg(Pitch::getPitchLabelForFrequency(note.value))
+            .arg(Pitch::getPitchForFrequency(note.value));
+
+    } else {
+        pitchText = tr("%1 %2")
+            .arg(note.value).arg(getScaleUnits());
+    }
+
+    QString text;
+
+    if (note.label == "") {
+        text = QString(tr("Time:\t%1\nPitch:\t%2\nDuration:\t%3\nNo label"))
+            .arg(rt.toText(true).c_str())
+            .arg(pitchText)
+            .arg(rd.toText(true).c_str());
+    } else {
+        text = QString(tr("Time:\t%1\nPitch:\t%2\nDuration:\t%3\nLabel:\t%4"))
+            .arg(rt.toText(true).c_str())
+            .arg(pitchText)
+            .arg(rd.toText(true).c_str())
+            .arg(note.label);
+    }
+
+    pos = QPoint(v->getXForFrame(note.frame),
+                 getYForValue(v, note.value));
+    return text;
+}
+
+bool
+FlexiNoteLayer::snapToFeatureFrame(View *v, int &frame,
+                                   size_t &resolution,
+                                   SnapType snap) const
+{
+    if (!m_model) {
+        return Layer::snapToFeatureFrame(v, frame, resolution, snap);
+    }
+
+    resolution = m_model->getResolution();
+    FlexiNoteModel::PointList points;
+
+    if (snap == SnapNeighbouring) {
+    
+        points = getLocalPoints(v, v->getXForFrame(frame));
+        if (points.empty()) return false;
+        frame = points.begin()->frame;
+        return true;
+    }    
+
+    points = m_model->getPoints(frame, frame);
+    int snapped = frame;
+    bool found = false;
+
+    for (FlexiNoteModel::PointList::const_iterator i = points.begin();
+         i != points.end(); ++i) {
+
+        cerr << "FlexiNoteModel: point at " << i->frame << endl;
+
+        if (snap == SnapRight) {
+
+            if (i->frame > frame) {
+                snapped = i->frame;
+                found = true;
+                break;
+            } else if (i->frame + i->duration >= frame) {
+                snapped = i->frame + i->duration;
+                found = true;
+                break;
+            }
+
+        } else if (snap == SnapLeft) {
+
+            if (i->frame <= frame) {
+                snapped = i->frame;
+                found = true; // don't break, as the next may be better
+            } else {
+                break;
+            }
+
+        } else { // nearest
+
+            FlexiNoteModel::PointList::const_iterator j = i;
+            ++j;
+
+            if (j == points.end()) {
+
+                snapped = i->frame;
+                found = true;
+                break;
+
+            } else if (j->frame >= frame) {
+
+                if (j->frame - frame < frame - i->frame) {
+                    snapped = j->frame;
+                } else {
+                    snapped = i->frame;
+                }
+                found = true;
+                break;
+            }
+        }
+    }
+
+    cerr << "snapToFeatureFrame: frame " << frame << " -> snapped " << snapped << ", found = " << found << endl;
+
+    frame = snapped;
+    return found;
+}
+
+void
+FlexiNoteLayer::getScaleExtents(View *v, float &min, float &max, bool &log) const
+{
+    min = 0.0;
+    max = 0.0;
+    log = false;
+
+    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();
+
+            if (shouldConvertMIDIToHz()) {
+                min = Pitch::getFrequencyForPitch(lrintf(min));
+                max = Pitch::getFrequencyForPitch(lrintf(max + 1));
+            }
+
+#ifdef DEBUG_NOTE_LAYER
+            cerr << "FlexiNoteLayer[" << this << "]::getScaleExtents: min = " << min << ", max = " << max << ", log = " << log << endl;
+#endif
+
+        } else if (log) {
+
+            LogRange::mapRange(min, max);
+
+#ifdef DEBUG_NOTE_LAYER
+            cerr << "FlexiNoteLayer[" << this << "]::getScaleExtents: min = " << min << ", max = " << max << ", log = " << log << endl;
+#endif
+        }
+
+    } else {
+
+        getDisplayExtents(min, max);
+
+        if (m_verticalScale == MIDIRangeScale) {
+            min = Pitch::getFrequencyForPitch(0);
+            max = Pitch::getFrequencyForPitch(70);
+        } else if (shouldConvertMIDIToHz()) {
+            min = Pitch::getFrequencyForPitch(lrintf(min));
+            max = Pitch::getFrequencyForPitch(lrintf(max + 1));
+        }
+
+        if (m_verticalScale == LogScale || m_verticalScale == MIDIRangeScale) {
+            LogRange::mapRange(min, max);
+            log = true;
+        }
+    }
+
+    if (max == min) max = min + 1.0;
+}
+
+int
+FlexiNoteLayer::getYForValue(View *v, float val) const
+{
+    float min = 0.0, max = 0.0;
+    bool logarithmic = false;
+    int h = v->height();
+
+    getScaleExtents(v, min, max, logarithmic);
+
+#ifdef DEBUG_NOTE_LAYER
+    cerr << "FlexiNoteLayer[" << this << "]::getYForValue(" << val << "): min = " << min << ", max = " << max << ", log = " << logarithmic << endl;
+#endif
+
+    if (shouldConvertMIDIToHz()) {
+        val = Pitch::getFrequencyForPitch(lrintf(val),
+                                          lrintf((val - lrintf(val)) * 100));
+#ifdef DEBUG_NOTE_LAYER
+        cerr << "shouldConvertMIDIToHz true, val now = " << val << endl;
+#endif
+    }
+
+    if (logarithmic) {
+        val = LogRange::map(val);
+#ifdef DEBUG_NOTE_LAYER
+        cerr << "logarithmic true, val now = " << val << endl;
+#endif
+    }
+
+    int y = int(h - ((val - min) * h) / (max - min)) - 1;
+#ifdef DEBUG_NOTE_LAYER
+    cerr << "y = " << y << endl;
+#endif
+    return y;
+}
+
+float
+FlexiNoteLayer::getValueForY(View *v, int y) const
+{
+    float min = 0.0, max = 0.0;
+    bool logarithmic = false;
+    int h = v->height();
+
+    getScaleExtents(v, min, max, logarithmic);
+
+    float val = min + (float(h - y) * float(max - min)) / h;
+
+    if (logarithmic) {
+        val = powf(10.f, val);
+    }
+
+    if (shouldConvertMIDIToHz()) {
+        val = Pitch::getPitchForFrequency(val);
+    }
+
+    return val;
+}
+
+bool
+FlexiNoteLayer::shouldAutoAlign() const
+{
+    if (!m_model) return false;
+    return (m_verticalScale == AutoAlignScale);
+}
+
+void
+FlexiNoteLayer::paint(View *v, QPainter &paint, QRect rect) const
+{
+    if (!m_model || !m_model->isOK()) return;
+
+    int sampleRate = m_model->getSampleRate();
+    if (!sampleRate) return;
+
+//    Profiler profiler("FlexiNoteLayer::paint", true);
+
+    int x0 = rect.left(), x1 = rect.right();
+    long frame0 = v->getFrameForX(x0);
+    long frame1 = v->getFrameForX(x1);
+
+    FlexiNoteModel::PointList points(m_model->getPoints(frame0, frame1));
+    if (points.empty()) return;
+
+    paint.setPen(getBaseQColor());
+
+    QColor brushColour(getBaseQColor());
+    brushColour.setAlpha(80);
+
+//    SVDEBUG << "FlexiNoteLayer::paint: resolution is "
+//        << m_model->getResolution() << " frames" << endl;
+
+    float min = m_model->getValueMinimum();
+    float max = m_model->getValueMaximum();
+    if (max == min) max = min + 1.0;
+
+    QPoint localPos;
+    FlexiNoteModel::Point illuminatePoint(0);
+    bool shouldIlluminate = false;
+
+    if (v->shouldIlluminateLocalFeatures(this, localPos)) {
+        shouldIlluminate = getPointToDrag(v, localPos.x(), localPos.y(),
+                                          illuminatePoint);
+    }
+
+    paint.save();
+    paint.setRenderHint(QPainter::Antialiasing, false);
+    
+    for (FlexiNoteModel::PointList::const_iterator i = points.begin();
+         i != points.end(); ++i) {
+
+        const FlexiNoteModel::Point &p(*i);
+
+        int x = v->getXForFrame(p.frame);
+        int y = getYForValue(v, p.value);
+        int w = v->getXForFrame(p.frame + p.duration) - x;
+        int h = NOTE_HEIGHT; //GF: larger notes
+    
+        if (m_model->getValueQuantization() != 0.0) {
+            h = y - getYForValue(v, p.value + m_model->getValueQuantization());
+            if (h < NOTE_HEIGHT) h = NOTE_HEIGHT; //GF: larger notes
+        }
+
+        if (w < 1) w = 1;
+        paint.setPen(getBaseQColor());
+        paint.setBrush(brushColour);
+
+        // if (shouldIlluminate &&
+        //         // "illuminatePoint == p"
+        //         !FlexiNoteModel::Point::Comparator()(illuminatePoint, p) &&
+        //         !FlexiNoteModel::Point::Comparator()(p, illuminatePoint)) {
+        // 
+        //         paint.setPen(v->getForeground());
+        //         paint.setBrush(v->getForeground());
+        // 
+        //         QString vlabel = QString("%1%2").arg(p.value).arg(m_model->getScaleUnits());
+        //         v->drawVisibleText(paint, 
+        //                            x - paint.fontMetrics().width(vlabel) - 2,
+        //                            y + paint.fontMetrics().height()/2
+        //                              - paint.fontMetrics().descent(), 
+        //                            vlabel, View::OutlinedText);
+        // 
+        //         QString hlabel = RealTime::frame2RealTime
+        //             (p.frame, m_model->getSampleRate()).toText(true).c_str();
+        //         v->drawVisibleText(paint, 
+        //                            x,
+        //                            y - h/2 - paint.fontMetrics().descent() - 2,
+        //                            hlabel, View::OutlinedText);
+        // }
+    
+        paint.drawRect(x, y - h/2, w, h);
+    }
+
+    paint.restore();
+}
+
+int
+FlexiNoteLayer::getVerticalScaleWidth(View *v, bool, QPainter &paint) const
+{
+    if (!m_model || shouldAutoAlign()) {
+        return 0;
+    } else  {
+        if (m_verticalScale == LogScale || m_verticalScale == MIDIRangeScale) {
+            return LogNumericalScale().getWidth(v, paint) + 10; // for piano
+        } else {
+            return LinearNumericalScale().getWidth(v, paint);
+        }
+    }
+}
+
+void
+FlexiNoteLayer::paintVerticalScale(View *v, bool, QPainter &paint, QRect) const
+{
+    if (!m_model || m_model->getPoints().empty()) return;
+
+    QString unit;
+    float min, max;
+    bool logarithmic;
+
+    int w = getVerticalScaleWidth(v, false, paint);
+    int h = v->height();
+
+    getScaleExtents(v, min, max, logarithmic);
+
+    if (logarithmic) {
+        LogNumericalScale().paintVertical(v, this, paint, 0, min, max);
+    } else {
+        LinearNumericalScale().paintVertical(v, this, paint, 0, min, max);
+    }
+    
+    if (logarithmic && (getScaleUnits() == "Hz")) {
+        PianoScale().paintPianoVertical
+            (v, paint, QRect(w - 10, 0, 10, h), 
+             LogRange::unmap(min), 
+             LogRange::unmap(max));
+        paint.drawLine(w, 0, w, h);
+    }
+        
+    if (getScaleUnits() != "") {
+        int mw = w - 5;
+        paint.drawText(5,
+                       5 + paint.fontMetrics().ascent(),
+                       TextAbbrev::abbreviate(getScaleUnits(),
+                                              paint.fontMetrics(),
+                                              mw));
+    }
+}
+
+void
+FlexiNoteLayer::drawStart(View *v, QMouseEvent *e)
+{
+//    SVDEBUG << "FlexiNoteLayer::drawStart(" << e->x() << "," << e->y() << ")" << endl;
+
+    if (!m_model) return;
+
+    long frame = v->getFrameForX(e->x());
+    if (frame < 0) frame = 0;
+    frame = frame / m_model->getResolution() * m_model->getResolution();
+
+    float value = getValueForY(v, e->y());
+
+    m_editingPoint = FlexiNoteModel::Point(frame, value, 0, 0.8, tr("New Point"));
+    m_originalPoint = m_editingPoint;
+
+    if (m_editingCommand) finish(m_editingCommand);
+    m_editingCommand = new FlexiNoteModel::EditCommand(m_model,
+                                                       tr("Draw Point"));
+    m_editingCommand->addPoint(m_editingPoint);
+
+    m_editing = true;
+}
+
+void
+FlexiNoteLayer::drawDrag(View *v, QMouseEvent *e)
+{
+//    SVDEBUG << "FlexiNoteLayer::drawDrag(" << e->x() << "," << e->y() << ")" << endl;
+
+    if (!m_model || !m_editing) return;
+
+    long frame = v->getFrameForX(e->x());
+    if (frame < 0) frame = 0;
+    frame = frame / m_model->getResolution() * m_model->getResolution();
+
+    float newValue = getValueForY(v, e->y());
+
+    long newFrame = m_editingPoint.frame;
+    long newDuration = frame - newFrame;
+    if (newDuration < 0) {
+        newFrame = frame;
+        newDuration = -newDuration;
+    } else if (newDuration == 0) {
+        newDuration = 1;
+    }
+
+    m_editingCommand->deletePoint(m_editingPoint);
+    m_editingPoint.frame = newFrame;
+    m_editingPoint.value = newValue;
+    m_editingPoint.duration = newDuration;
+    m_editingCommand->addPoint(m_editingPoint);
+}
+
+void
+FlexiNoteLayer::drawEnd(View *, QMouseEvent *)
+{
+//    SVDEBUG << "FlexiNoteLayer::drawEnd(" << e->x() << "," << e->y() << ")" << endl;
+    if (!m_model || !m_editing) return;
+    finish(m_editingCommand);
+    m_editingCommand = 0;
+    m_editing = false;
+}
+
+void
+FlexiNoteLayer::eraseStart(View *v, QMouseEvent *e)
+{
+    if (!m_model) return;
+
+    if (!getPointToDrag(v, e->x(), e->y(), m_editingPoint)) return;
+
+    if (m_editingCommand) {
+        finish(m_editingCommand);
+        m_editingCommand = 0;
+    }
+
+    m_editing = true;
+}
+
+void
+FlexiNoteLayer::eraseDrag(View *v, QMouseEvent *e)
+{
+}
+
+void
+FlexiNoteLayer::eraseEnd(View *v, QMouseEvent *e)
+{
+    if (!m_model || !m_editing) return;
+
+    m_editing = false;
+
+    FlexiNoteModel::Point p(0);
+    if (!getPointToDrag(v, e->x(), e->y(), p)) return;
+    if (p.frame != m_editingPoint.frame || p.value != m_editingPoint.value) return;
+
+    m_editingCommand = new FlexiNoteModel::EditCommand(m_model, tr("Erase Point"));
+
+    m_editingCommand->deletePoint(m_editingPoint);
+
+    finish(m_editingCommand);
+    m_editingCommand = 0;
+    m_editing = false;
+}
+
+void
+FlexiNoteLayer::editStart(View *v, QMouseEvent *e)
+{
+//    SVDEBUG << "FlexiNoteLayer::editStart(" << e->x() << "," << e->y() << ")" << endl;
+    std::cerr << "FlexiNoteLayer::editStart(" << e->x() << "," << e->y() << ")" << std::endl;
+
+    if (!m_model) return;
+
+    if (!getPointToDrag(v, e->x(), e->y(), m_editingPoint)) return;
+    m_originalPoint = FlexiNote(m_editingPoint);
+    
+    if (m_editMode == RightBoundary) {
+        m_dragPointX = v->getXForFrame(m_editingPoint.frame + m_editingPoint.duration);
+    } else {
+        m_dragPointX = v->getXForFrame(m_editingPoint.frame);
+    }
+    m_dragPointY = getYForValue(v, m_editingPoint.value);
+
+    if (m_editingCommand) {
+        finish(m_editingCommand);
+        m_editingCommand = 0;
+    }
+
+    m_editing = true;
+    m_dragStartX = e->x();
+    m_dragStartY = e->y();
+    
+    long onset = m_originalPoint.frame;
+    long offset = m_originalPoint.frame + m_originalPoint.duration - 1;
+    
+    m_greatestLeftNeighbourFrame = -1;
+    m_smallestRightNeighbourFrame = std::numeric_limits<long>::max();
+    
+    for (FlexiNoteModel::PointList::const_iterator i = m_model->getPoints().begin();
+         i != m_model->getPoints().end(); ++i) {
+        FlexiNote currentNote = *i;
+        
+        // left boundary
+        if (currentNote.frame + currentNote.duration - 1 < onset) {
+            m_greatestLeftNeighbourFrame = currentNote.frame + currentNote.duration - 1;
+        }
+        
+        // right boundary
+        if (currentNote.frame > offset) {
+            m_smallestRightNeighbourFrame = currentNote.frame;
+            break;
+        }
+    }
+    std::cerr << "editStart: mode is " << m_editMode << ", note frame: " << onset << ", left boundary: " << m_greatestLeftNeighbourFrame << ", right boundary: " << m_smallestRightNeighbourFrame << std::endl;
+}
+
+void
+FlexiNoteLayer::editDrag(View *v, QMouseEvent *e)
+{
+//    SVDEBUG << "FlexiNoteLayer::editDrag(" << e->x() << "," << e->y() << ")" << endl;
+    std::cerr << "FlexiNoteLayer::editDrag(" << e->x() << "," << e->y() << ")" << std::endl;
+
+    if (!m_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;
+
+    long dragFrame = v->getFrameForX(newx);
+    if (dragFrame < 0) dragFrame = 0;
+    dragFrame = dragFrame / m_model->getResolution() * m_model->getResolution();
+    
+    float value = getValueForY(v, newy);
+
+    if (!m_editingCommand) {
+        m_editingCommand = new FlexiNoteModel::EditCommand(m_model,
+                                                           tr("Drag Point"));
+    }
+
+    m_editingCommand->deletePoint(m_editingPoint);
+
+    std::cerr << "edit mode: " << m_editMode << std::endl;
+    
+    switch (m_editMode) {
+    case LeftBoundary : {
+        // left 
+        if (m_intelligentActions && dragFrame <= m_greatestLeftNeighbourFrame) dragFrame = m_greatestLeftNeighbourFrame + 1;
+        // right
+        if (m_intelligentActions && dragFrame >= m_originalPoint.frame + m_originalPoint.duration) {
+            dragFrame = m_originalPoint.frame + m_originalPoint.duration - 1;
+        }
+        m_editingPoint.frame = dragFrame;
+        m_editingPoint.duration = m_originalPoint.frame - dragFrame + m_originalPoint.duration;
+        break;
+    }
+    case RightBoundary : {
+        // left
+        if (m_intelligentActions && dragFrame <= m_greatestLeftNeighbourFrame) dragFrame = m_greatestLeftNeighbourFrame + 1;
+        if (m_intelligentActions && dragFrame >= m_smallestRightNeighbourFrame) dragFrame = m_smallestRightNeighbourFrame - 1;
+        m_editingPoint.duration = dragFrame - m_originalPoint.frame + 1;
+        break;
+    }
+    case DragNote : {
+        // left
+        if (m_intelligentActions && dragFrame <= m_greatestLeftNeighbourFrame) dragFrame = m_greatestLeftNeighbourFrame + 1;
+        // right
+        if (m_intelligentActions && dragFrame + m_originalPoint.duration >= m_smallestRightNeighbourFrame) {
+            dragFrame = m_smallestRightNeighbourFrame - m_originalPoint.duration;
+        }
+        m_editingPoint.frame = dragFrame;
+        m_editingPoint.value = value;
+        break;
+    }
+    }
+    updateNoteValue(v, m_editingPoint);
+    m_editingCommand->addPoint(m_editingPoint);
+    std::cerr << "added new point(" << m_editingPoint.frame << "," << m_editingPoint.duration << ")" << std::endl;
+    
+}
+
+void
+FlexiNoteLayer::editEnd(View *v, QMouseEvent *e)
+{
+//    SVDEBUG << "FlexiNoteLayer::editEnd(" << e->x() << "," << e->y() << ")" << endl;
+    std::cerr << "FlexiNoteLayer::editEnd(" << e->x() << "," << e->y() << ")" << std::endl;
+    
+    if (!m_model || !m_editing) return;
+
+    if (m_editingCommand) {
+
+        QString newName = m_editingCommand->getName();
+
+        if (m_editingPoint.frame != m_originalPoint.frame) {
+            if (m_editingPoint.value != m_originalPoint.value) {
+                newName = tr("Edit Point");
+            } else {
+                newName = tr("Relocate Point");
+            }
+        } else {
+            newName = tr("Change Point Value");
+        }
+
+        m_editingCommand->setName(newName);
+        finish(m_editingCommand);
+    }
+
+    m_editingCommand = 0;
+    m_editing = false;
+}
+
+void
+FlexiNoteLayer::splitStart(View *v, QMouseEvent *e)
+{
+    // GF: note splitting starts (!! remove printing soon)
+    std::cerr << "splitStart" << std::endl;
+    if (!m_model) return;
+
+    if (!getPointToDrag(v, e->x(), e->y(), m_editingPoint)) return;
+    // m_originalPoint = m_editingPoint;
+    // 
+    // m_dragPointX = v->getXForFrame(m_editingPoint.frame);
+    // m_dragPointY = getYForValue(v, m_editingPoint.value);
+
+    if (m_editingCommand) {
+        finish(m_editingCommand);
+        m_editingCommand = 0;
+    }
+
+    m_editing = true;
+    m_dragStartX = e->x();
+    m_dragStartY = e->y();
+    
+}
+
+void
+FlexiNoteLayer::splitEnd(View *v, QMouseEvent *e)
+{
+    // GF: note splitting ends. (!! remove printing soon)
+    std::cerr << "splitEnd" << std::endl;
+    if (!m_model || !m_editing || m_editMode != SplitNote) return;
+
+    int xdist = e->x() - m_dragStartX;
+    int ydist = e->y() - m_dragStartY;
+    if (xdist != 0 || ydist != 0) { 
+        std::cerr << "mouse moved" << std::endl;    
+        return; 
+    }
+
+    long frame = v->getFrameForX(e->x());
+
+    splitNotesAt(v, frame, e);
+}
+
+void
+FlexiNoteLayer::splitNotesAt(View *v, int frame)
+{
+    splitNotesAt(v, frame, 0);
+}
+
+void
+FlexiNoteLayer::splitNotesAt(View *v, int frame, QMouseEvent *e)
+{
+    FlexiNoteModel::PointList onPoints = m_model->getPoints(frame);
+    if (onPoints.empty()) return;
+    
+    FlexiNote note(*onPoints.begin());
+
+    FlexiNoteModel::EditCommand *command = new FlexiNoteModel::EditCommand
+        (m_model, tr("Edit Point"));
+    command->deletePoint(note);
+
+    if (!e || !(e->modifiers() & Qt::ShiftModifier)) {
+
+        int gap = 0; // MM: I prefer a gap of 0, but we can decide later
+    
+        FlexiNote newNote1(note.frame, note.value, 
+                           frame - note.frame - gap, 
+                           note.level, note.label);
+    
+        FlexiNote newNote2(frame, note.value, 
+                           note.duration - newNote1.duration, 
+                           note.level, note.label);
+                       
+        if (m_intelligentActions) {
+            if (updateNoteValue(v, newNote1)) {
+                command->addPoint(newNote1);
+            }
+            if (updateNoteValue(v, newNote2)) {
+                command->addPoint(newNote2);
+            }
+        } else {
+            command->addPoint(newNote1);
+            command->addPoint(newNote2);
+        }
+    }
+
+    finish(command);
+}
+
+void
+FlexiNoteLayer::addNote(View *v, QMouseEvent *e)
+{
+    std::cerr << "addNote" << std::endl;
+    if (!m_model) return;
+
+    long duration = 10000;
+    
+    long frame = v->getFrameForX(e->x());
+    float value = getValueForY(v, e->y());
+    
+    if (m_intelligentActions) {
+        long smallestRightNeighbourFrame = 0;
+        for (FlexiNoteModel::PointList::const_iterator i = m_model->getPoints().begin();
+             i != m_model->getPoints().end(); ++i) {
+            FlexiNote currentNote = *i;
+            if (currentNote.frame > frame) {
+                smallestRightNeighbourFrame = currentNote.frame;
+                break;
+            }
+        }
+        
+        duration = std::min(smallestRightNeighbourFrame - frame + 1, duration);
+        duration = (duration > 0) ? duration : 0;
+    }
+
+    if (!m_intelligentActions || 
+        (m_model->getPoints(frame).empty() && duration > 0)) {
+        FlexiNote newNote(frame, value, duration, 100, "new note");
+        FlexiNoteModel::EditCommand *command = new FlexiNoteModel::EditCommand
+            (m_model, tr("Add Point"));
+        command->addPoint(newNote);
+        finish(command);
+    }
+}
+
+SparseTimeValueModel *
+FlexiNoteLayer::getAssociatedPitchModel(View *v) const
+{
+    // Better than we used to do, but still not very satisfactory
+
+    cerr << "FlexiNoteLayer::getAssociatedPitchModel()" << endl;
+
+    for (int i = 0; i < v->getLayerCount(); ++i) {
+        Layer *layer = v->getLayer(i);
+        if (layer && !layer->isLayerDormant(v) && 
+            layer->getLayerPresentationName() != "candidate") {
+            cerr << "FlexiNoteLayer::getAssociatedPitchModel: looks like our layer is " << layer << endl;
+            SparseTimeValueModel *model = qobject_cast<SparseTimeValueModel *>
+                (layer->getModel());
+            cerr << "FlexiNoteLayer::getAssociatedPitchModel: and its model is " << model << endl;
+            if (model && model->getScaleUnits() == "Hz") {
+                cerr << "FlexiNoteLayer::getAssociatedPitchModel: it's good, returning " << model << endl;
+                return model;
+            }
+        }
+    }
+    return 0;
+}
+
+void
+FlexiNoteLayer::snapSelectedNotesToPitchTrack(View *v, Selection s)
+{
+    if (!m_model) return;
+
+    FlexiNoteModel::PointList points =
+        m_model->getPoints(s.getStartFrame(), s.getEndFrame());
+
+    FlexiNoteModel::EditCommand *command = new FlexiNoteModel::EditCommand
+        (m_model, tr("Snap Notes"));
+
+    cerr << "snapSelectedNotesToPitchTrack: selection is from " << s.getStartFrame() << " to " << s.getEndFrame() << endl;
+
+    for (FlexiNoteModel::PointList::iterator i = points.begin();
+         i != points.end(); ++i) {
+
+        FlexiNote note(*i);
+
+        cerr << "snapSelectedNotesToPitchTrack: looking at note from " << note.frame << " to " << note.frame + note.duration << endl;
+
+        if (!s.contains(note.frame) &&
+            !s.contains(note.frame + note.duration - 1)) {
+            continue;
+        }
+
+        FlexiNote newNote(note);
+
+        command->deletePoint(note);
+
+
+    }
+    
+    finish(command);
+}
+
+void
+FlexiNoteLayer::mergeNotes(View *v, Selection s, bool inclusive)
+{
+    FlexiNoteModel::PointList points =
+        m_model->getPoints(s.getStartFrame(), s.getEndFrame());
+
+    FlexiNoteModel::PointList::iterator i = points.begin();
+    if (inclusive) {
+        while (i != points.end() && i->frame + i->duration < s.getStartFrame()) {
+            ++i;
+        }
+    } else {
+        while (i != points.end() && i->frame < s.getStartFrame()) {
+            ++i;
+        }
+    }
+        
+    if (i == points.end()) return;
+
+    FlexiNoteModel::EditCommand *command = 
+        new FlexiNoteModel::EditCommand(m_model, tr("Merge Notes"));
+
+    FlexiNote newNote(*i);
+
+    while (i != points.end()) {
+
+        if (inclusive) {
+            if (i->frame >= s.getEndFrame()) break;
+        } else {
+            if (i->frame + i->duration > s.getEndFrame()) break;
+        }
+
+        newNote.duration = i->frame + i->duration - newNote.frame;
+        command->deletePoint(*i);
+
+        ++i;
+    }
+
+    updateNoteValue(v, newNote);
+    command->addPoint(newNote);
+    finish(command);
+}
+
+bool
+FlexiNoteLayer::updateNoteValue(View *v, FlexiNoteModel::Point &note) const
+{
+    SparseTimeValueModel *model = getAssociatedPitchModel(v);
+    if (!model) return false;
+        
+    std::cerr << model->getTypeName() << std::endl;
+
+    SparseModel<TimeValuePoint>::PointList dataPoints =
+        model->getPoints(note.frame, note.frame + note.duration);
+   
+    std::cerr << "frame " << note.frame << ": " << dataPoints.size() << " candidate points" << std::endl;
+   
+    if (dataPoints.empty()) return false;
+
+    std::vector<float> pitchValues;
+   
+    for (SparseModel<TimeValuePoint>::PointList::const_iterator i =
+             dataPoints.begin(); i != dataPoints.end(); ++i) {
+        if (i->frame >= note.frame &&
+            i->frame < note.frame + note.duration) {
+            pitchValues.push_back(i->value);
+        }
+    }
+        
+    if (pitchValues.empty()) return false;
+
+    sort(pitchValues.begin(), pitchValues.end());
+    size_t size = pitchValues.size();
+    double median;
+
+    if (size % 2 == 0) {
+        median = (pitchValues[size/2 - 1] + pitchValues[size/2]) / 2;
+    } else {
+        median = pitchValues[size/2];
+    }
+    
+    note.value = median;
+
+    return true;
+}
+
+void 
+FlexiNoteLayer::mouseMoveEvent(View *v, QMouseEvent *e)
+{
+    // GF: context sensitive cursors
+    // v->setCursor(Qt::ArrowCursor);
+    FlexiNoteModel::Point note(0);
+    if (!getNoteToEdit(v, e->x(), e->y(), note)) { 
+        // v->setCursor(Qt::UpArrowCursor);
+        return; 
+    }
+
+    bool closeToLeft = false, closeToRight = false, closeToTop = false, closeToBottom = false;
+    getRelativeMousePosition(v, note, e->x(), e->y(), closeToLeft, closeToRight, closeToTop, closeToBottom);
+    // if (!closeToLeft) return;
+    // if (closeToTop) v->setCursor(Qt::SizeVerCursor);
+    
+    if (closeToLeft) { v->setCursor(Qt::SizeHorCursor); m_editMode = LeftBoundary; return; }
+    if (closeToRight) { v->setCursor(Qt::SizeHorCursor); m_editMode = RightBoundary; return; }
+    if (closeToTop) { v->setCursor(Qt::CrossCursor);  m_editMode = DragNote; return; }
+    if (closeToBottom) { v->setCursor(Qt::UpArrowCursor); m_editMode = SplitNote; return; }
+
+    v->setCursor(Qt::ArrowCursor);
+
+    // std::cerr << "Mouse moved in edit mode over FlexiNoteLayer" << std::endl;
+    // v->setCursor(Qt::SizeHorCursor);
+
+}
+
+void
+FlexiNoteLayer::getRelativeMousePosition(View *v, FlexiNoteModel::Point &note, int x, int y, bool &closeToLeft, bool &closeToRight, bool &closeToTop, bool &closeToBottom) const
+{
+    // GF: TODO: consoloidate the tolerance values
+    if (!m_model) return;
+
+    int ctol = 0;
+    int noteStartX = v->getXForFrame(note.frame);
+    int noteEndX = v->getXForFrame(note.frame + note.duration);
+    int noteValueY = getYForValue(v,note.value);
+    int noteStartY = noteValueY - (NOTE_HEIGHT / 2);
+    int noteEndY = noteValueY + (NOTE_HEIGHT / 2);
+    
+    bool closeToNote = false;
+    
+    if (y >= noteStartY-ctol && y <= noteEndY+ctol && x >= noteStartX-ctol && x <= noteEndX+ctol) closeToNote = true;
+    if (!closeToNote) return;
+    
+    int tol = NOTE_HEIGHT / 2;
+    
+    if (x >= noteStartX - tol && x <= noteStartX + tol) closeToLeft = true;
+    if (x >= noteEndX - tol && x <= noteEndX + tol) closeToRight = true;
+    if (y >= noteStartY - tol && y <= noteStartY + tol) closeToTop = true;
+    if (y >= noteEndY - tol && y <= noteEndY + tol) closeToBottom = true;
+
+//    cerr << "FlexiNoteLayer::getRelativeMousePosition: close to: left " << closeToLeft << " right " << closeToRight << " top " << closeToTop << " bottom " << closeToBottom << endl;
+}
+
+
+bool
+FlexiNoteLayer::editOpen(View *v, QMouseEvent *e)
+{
+    std::cerr << "Opening note editor dialog" << std::endl;
+    if (!m_model) return false;
+
+    FlexiNoteModel::Point note(0);
+    if (!getPointToDrag(v, e->x(), e->y(), note)) return false;
+
+//    FlexiNoteModel::Point note = *points.begin();
+
+    ItemEditDialog *dialog = new ItemEditDialog
+        (m_model->getSampleRate(),
+         ItemEditDialog::ShowTime |
+         ItemEditDialog::ShowDuration |
+         ItemEditDialog::ShowValue |
+         ItemEditDialog::ShowText,
+         getScaleUnits());
+
+    dialog->setFrameTime(note.frame);
+    dialog->setValue(note.value);
+    dialog->setFrameDuration(note.duration);
+    dialog->setText(note.label);
+
+    if (dialog->exec() == QDialog::Accepted) {
+
+        FlexiNoteModel::Point newNote = note;
+        newNote.frame = dialog->getFrameTime();
+        newNote.value = dialog->getValue();
+        newNote.duration = dialog->getFrameDuration();
+        newNote.label = dialog->getText();
+        
+        FlexiNoteModel::EditCommand *command = new FlexiNoteModel::EditCommand
+            (m_model, tr("Edit Point"));
+        command->deletePoint(note);
+        command->addPoint(newNote);
+        finish(command);
+    }
+
+    delete dialog;
+    return true;
+}
+
+void
+FlexiNoteLayer::moveSelection(Selection s, size_t newStartFrame)
+{
+    if (!m_model) return;
+
+    FlexiNoteModel::EditCommand *command =
+        new FlexiNoteModel::EditCommand(m_model, tr("Drag Selection"));
+
+    FlexiNoteModel::PointList points =
+        m_model->getPoints(s.getStartFrame(), s.getEndFrame());
+
+    for (FlexiNoteModel::PointList::iterator i = points.begin();
+         i != points.end(); ++i) {
+
+        if (s.contains(i->frame)) {
+            FlexiNoteModel::Point newPoint(*i);
+            newPoint.frame = i->frame + newStartFrame - s.getStartFrame();
+            command->deletePoint(*i);
+            command->addPoint(newPoint);
+        }
+    }
+
+    finish(command);
+}
+
+void
+FlexiNoteLayer::resizeSelection(Selection s, Selection newSize)
+{
+    if (!m_model) return;
+
+    FlexiNoteModel::EditCommand *command =
+        new FlexiNoteModel::EditCommand(m_model, tr("Resize Selection"));
+
+    FlexiNoteModel::PointList points =
+        m_model->getPoints(s.getStartFrame(), s.getEndFrame());
+
+    double ratio =
+        double(newSize.getEndFrame() - newSize.getStartFrame()) /
+        double(s.getEndFrame() - s.getStartFrame());
+
+    for (FlexiNoteModel::PointList::iterator i = points.begin();
+         i != points.end(); ++i) {
+
+        if (s.contains(i->frame)) {
+
+            double targetStart = i->frame;
+            targetStart = newSize.getStartFrame() + 
+                double(targetStart - s.getStartFrame()) * ratio;
+
+            double targetEnd = i->frame + i->duration;
+            targetEnd = newSize.getStartFrame() +
+                double(targetEnd - s.getStartFrame()) * ratio;
+
+            FlexiNoteModel::Point newPoint(*i);
+            newPoint.frame = lrint(targetStart);
+            newPoint.duration = lrint(targetEnd - targetStart);
+            command->deletePoint(*i);
+            command->addPoint(newPoint);
+        }
+    }
+
+    finish(command);
+}
+
+void
+FlexiNoteLayer::deleteSelection(Selection s)
+{
+    if (!m_model) return;
+
+    FlexiNoteModel::EditCommand *command =
+        new FlexiNoteModel::EditCommand(m_model, tr("Delete Selected Points"));
+
+    FlexiNoteModel::PointList points =
+        m_model->getPoints(s.getStartFrame(), s.getEndFrame());
+
+    for (FlexiNoteModel::PointList::iterator i = points.begin();
+         i != points.end(); ++i) {
+
+        if (s.contains(i->frame)) {
+            command->deletePoint(*i);
+        }
+    }
+
+    finish(command);
+}    
+
+void
+FlexiNoteLayer::copy(View *v, Selection s, Clipboard &to)
+{
+    if (!m_model) return;
+
+    FlexiNoteModel::PointList points =
+        m_model->getPoints(s.getStartFrame(), s.getEndFrame());
+
+    for (FlexiNoteModel::PointList::iterator i = points.begin();
+         i != points.end(); ++i) {
+        if (s.contains(i->frame)) {
+            Clipboard::Point point(i->frame, i->value, i->duration, i->level, i->label);
+            point.setReferenceFrame(alignToReference(v, i->frame));
+            to.addPoint(point);
+        }
+    }
+}
+
+bool
+FlexiNoteLayer::paste(View *v, const Clipboard &from, int frameOffset, bool /* interactive */)
+{
+    if (!m_model) return false;
+
+    const Clipboard::PointList &points = from.getPoints();
+
+    bool realign = false;
+
+    if (clipboardHasDifferentAlignment(v, from)) {
+
+        QMessageBox::StandardButton button =
+            QMessageBox::question(v, tr("Re-align pasted items?"),
+                                  tr("The items you are pasting came from a layer with different source material from this one.  Do you want to re-align them in time, to match the source material for this layer?"),
+                                  QMessageBox::Yes | QMessageBox::No | QMessageBox::Cancel,
+                                  QMessageBox::Yes);
+
+        if (button == QMessageBox::Cancel) {
+            return false;
+        }
+
+        if (button == QMessageBox::Yes) {
+            realign = true;
+        }
+    }
+
+    FlexiNoteModel::EditCommand *command =
+        new FlexiNoteModel::EditCommand(m_model, tr("Paste"));
+
+    for (Clipboard::PointList::const_iterator i = points.begin();
+         i != points.end(); ++i) {
+        
+        if (!i->haveFrame()) continue;
+        size_t frame = 0;
+
+        if (!realign) {
+            
+            frame = i->getFrame();
+
+        } else {
+
+            if (i->haveReferenceFrame()) {
+                frame = i->getReferenceFrame();
+                frame = alignFromReference(v, frame);
+            } else {
+                frame = i->getFrame();
+            }
+        }
+
+        FlexiNoteModel::Point newPoint(frame);
+  
+        if (i->haveLabel()) newPoint.label = i->getLabel();
+        if (i->haveValue()) newPoint.value = i->getValue();
+        else newPoint.value = (m_model->getValueMinimum() +
+                               m_model->getValueMaximum()) / 2;
+        if (i->haveLevel()) newPoint.level = i->getLevel();
+        if (i->haveDuration()) newPoint.duration = i->getDuration();
+        else {
+            size_t nextFrame = frame;
+            Clipboard::PointList::const_iterator j = i;
+            for (; j != points.end(); ++j) {
+                if (!j->haveFrame()) continue;
+                if (j != i) break;
+            }
+            if (j != points.end()) {
+                nextFrame = j->getFrame();
+            }
+            if (nextFrame == frame) {
+                newPoint.duration = m_model->getResolution();
+            } else {
+                newPoint.duration = nextFrame - frame;
+            }
+        }
+        
+        command->addPoint(newPoint);
+    }
+
+    finish(command);
+    return true;
+}
+
+void
+FlexiNoteLayer::addNoteOn(long frame, int pitch, int velocity)
+{
+    m_pendingNoteOns.insert(FlexiNote(frame, pitch, 0, float(velocity) / 127.0, ""));
+}
+
+void
+FlexiNoteLayer::addNoteOff(long frame, int pitch)
+{
+    for (FlexiNoteSet::iterator i = m_pendingNoteOns.begin();
+         i != m_pendingNoteOns.end(); ++i) {
+        if (lrintf((*i).value) == pitch) {
+            FlexiNote note(*i);
+            m_pendingNoteOns.erase(i);
+            note.duration = frame - note.frame;
+            if (m_model) {
+                FlexiNoteModel::AddPointCommand *c = new FlexiNoteModel::AddPointCommand
+                    (m_model, note, tr("Record FlexiNote"));
+                // execute and bundle:
+                CommandHistory::getInstance()->addCommand(c, true, true);
+            }
+            break;
+        }
+    }
+}
+
+void
+FlexiNoteLayer::abandonNoteOns()
+{
+    m_pendingNoteOns.clear();
+}
+
+int
+FlexiNoteLayer::getDefaultColourHint(bool darkbg, bool &impose)
+{
+    impose = false;
+    return ColourDatabase::getInstance()->getColourIndex
+        (QString(darkbg ? "White" : "Black"));
+}
+
+void
+FlexiNoteLayer::toXml(QTextStream &stream,
+                      QString indent, QString extraAttributes) const
+{
+    SingleColourLayer::toXml(stream, indent, extraAttributes +
+                             QString(" verticalScale=\"%1\" scaleMinimum=\"%2\" scaleMaximum=\"%3\" ")
+                             .arg(m_verticalScale)
+                             .arg(m_scaleMinimum)
+                             .arg(m_scaleMaximum));
+}
+
+void
+FlexiNoteLayer::setProperties(const QXmlAttributes &attributes)
+{
+    SingleColourLayer::setProperties(attributes);
+
+    bool ok, alsoOk;
+    VerticalScale scale = (VerticalScale)
+        attributes.value("verticalScale").toInt(&ok);
+    if (ok) setVerticalScale(scale);
+
+    float min = attributes.value("scaleMinimum").toFloat(&ok);
+    float max = attributes.value("scaleMaximum").toFloat(&alsoOk);
+//    if (ok && alsoOk && min != max) setDisplayExtents(min, max);
+}
+
+void
+FlexiNoteLayer::setVerticalRangeToNoteRange(View *v)
+{
+    float minf = std::numeric_limits<float>::max();
+    float maxf = 0;
+    bool hasNotes = 0;
+    for (FlexiNoteModel::PointList::const_iterator i = m_model->getPoints().begin();
+         i != m_model->getPoints().end(); ++i) {
+        hasNotes = 1;
+        FlexiNote note = *i;
+        if (note.value < minf) minf = note.value;
+        if (note.value > maxf) maxf = note.value;
+    }
+    
+    std::cerr << "min frequency:" << minf << ", max frequency: " << maxf << std::endl;
+    
+    if (hasNotes) {
+        v->getLayer(1)->setDisplayExtents(minf*0.66,maxf*1.5); 
+        // MM: this is a hack because we rely on 
+        // * this layer being automatically aligned to layer 1
+        // * layer one is a log frequency layer.
+    }
+}
+
+