Chris@58: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
Chris@30: 
Chris@30: /*
Chris@30:     A waveform viewer and audio annotation editor.
Chris@30:     Chris Cannam, Queen Mary University of London, 2005-2006
Chris@30:     
Chris@30:     This is experimental software.  Not for distribution.
Chris@30: */
Chris@30: 
Chris@30: #include "NoteLayer.h"
Chris@30: 
Chris@30: #include "base/Model.h"
Chris@30: #include "base/RealTime.h"
Chris@30: #include "base/Profiler.h"
Chris@30: #include "base/Pitch.h"
Chris@30: #include "base/View.h"
Chris@30: 
Chris@30: #include "model/NoteModel.h"
Chris@30: 
Chris@42: #include "SpectrogramLayer.h" // for optional frequency alignment
Chris@42: 
Chris@30: #include <QPainter>
Chris@30: #include <QPainterPath>
Chris@30: #include <QMouseEvent>
Chris@30: 
Chris@30: #include <iostream>
Chris@30: #include <cmath>
Chris@30: 
Chris@44: NoteLayer::NoteLayer() :
Chris@44:     Layer(),
Chris@30:     m_model(0),
Chris@30:     m_editing(false),
Chris@30:     m_originalPoint(0, 0.0, 0, tr("New Point")),
Chris@30:     m_editingPoint(0, 0.0, 0, tr("New Point")),
Chris@30:     m_editingCommand(0),
Chris@30:     m_colour(Qt::black),
Chris@30:     m_verticalScale(MinMaxRangeScale)
Chris@30: {
Chris@44:     
Chris@30: }
Chris@30: 
Chris@30: void
Chris@30: NoteLayer::setModel(NoteModel *model)
Chris@30: {
Chris@30:     if (m_model == model) return;
Chris@30:     m_model = model;
Chris@30: 
Chris@30:     connect(m_model, SIGNAL(modelChanged()), this, SIGNAL(modelChanged()));
Chris@30:     connect(m_model, SIGNAL(modelChanged(size_t, size_t)),
Chris@30: 	    this, SIGNAL(modelChanged(size_t, size_t)));
Chris@30: 
Chris@30:     connect(m_model, SIGNAL(completionChanged()),
Chris@30: 	    this, SIGNAL(modelCompletionChanged()));
Chris@30: 
Chris@30:     std::cerr << "NoteLayer::setModel(" << model << ")" << std::endl;
Chris@30: 
Chris@30:     emit modelReplaced();
Chris@30: }
Chris@30: 
Chris@30: Layer::PropertyList
Chris@30: NoteLayer::getProperties() const
Chris@30: {
Chris@30:     PropertyList list;
Chris@30:     list.push_back(tr("Colour"));
Chris@30:     list.push_back(tr("Vertical Scale"));
Chris@30:     return list;
Chris@30: }
Chris@30: 
Chris@30: Layer::PropertyType
Chris@30: NoteLayer::getPropertyType(const PropertyName &) const
Chris@30: {
Chris@30:     return ValueProperty;
Chris@30: }
Chris@30: 
Chris@30: int
Chris@30: NoteLayer::getPropertyRangeAndValue(const PropertyName &name,
Chris@30: 					 int *min, int *max) const
Chris@30: {
Chris@30:     //!!! factor this colour handling stuff out into a colour manager class
Chris@30: 
Chris@30:     int deft = 0;
Chris@30: 
Chris@30:     if (name == tr("Colour")) {
Chris@30: 
Chris@30: 	if (min) *min = 0;
Chris@30: 	if (max) *max = 5;
Chris@30: 
Chris@30: 	if (m_colour == Qt::black) deft = 0;
Chris@30: 	else if (m_colour == Qt::darkRed) deft = 1;
Chris@30: 	else if (m_colour == Qt::darkBlue) deft = 2;
Chris@30: 	else if (m_colour == Qt::darkGreen) deft = 3;
Chris@30: 	else if (m_colour == QColor(200, 50, 255)) deft = 4;
Chris@30: 	else if (m_colour == QColor(255, 150, 50)) deft = 5;
Chris@30: 
Chris@30:     } else if (name == tr("Vertical Scale")) {
Chris@30: 	
Chris@30: 	if (min) *min = 0;
Chris@30: 	if (max) *max = 2;
Chris@30: 	
Chris@30: 	deft = int(m_verticalScale);
Chris@30: 
Chris@30:     } else {
Chris@30: 	
Chris@30: 	deft = Layer::getPropertyRangeAndValue(name, min, max);
Chris@30:     }
Chris@30: 
Chris@30:     return deft;
Chris@30: }
Chris@30: 
Chris@30: QString
Chris@30: NoteLayer::getPropertyValueLabel(const PropertyName &name,
Chris@30: 				    int value) const
Chris@30: {
Chris@30:     if (name == tr("Colour")) {
Chris@30: 	switch (value) {
Chris@30: 	default:
Chris@30: 	case 0: return tr("Black");
Chris@30: 	case 1: return tr("Red");
Chris@30: 	case 2: return tr("Blue");
Chris@30: 	case 3: return tr("Green");
Chris@30: 	case 4: return tr("Purple");
Chris@30: 	case 5: return tr("Orange");
Chris@30: 	}
Chris@30:     } else if (name == tr("Vertical Scale")) {
Chris@30: 	switch (value) {
Chris@30: 	default:
Chris@30: 	case 0: return tr("Note Range In Use");
Chris@30: 	case 1: return tr("MIDI Note Range");
Chris@30: 	case 2: return tr("Frequency");
Chris@30: 	}
Chris@30:     }
Chris@30:     return tr("<unknown>");
Chris@30: }
Chris@30: 
Chris@30: void
Chris@30: NoteLayer::setProperty(const PropertyName &name, int value)
Chris@30: {
Chris@30:     if (name == tr("Colour")) {
Chris@30: 	switch (value) {
Chris@30: 	default:
Chris@30: 	case 0:	setBaseColour(Qt::black); break;
Chris@30: 	case 1: setBaseColour(Qt::darkRed); break;
Chris@30: 	case 2: setBaseColour(Qt::darkBlue); break;
Chris@30: 	case 3: setBaseColour(Qt::darkGreen); break;
Chris@30: 	case 4: setBaseColour(QColor(200, 50, 255)); break;
Chris@30: 	case 5: setBaseColour(QColor(255, 150, 50)); break;
Chris@30: 	}
Chris@30:     } else if (name == tr("Vertical Scale")) {
Chris@30: 	setVerticalScale(VerticalScale(value));
Chris@30:     }
Chris@30: }
Chris@30: 
Chris@30: void
Chris@30: NoteLayer::setBaseColour(QColor colour)
Chris@30: {
Chris@30:     if (m_colour == colour) return;
Chris@30:     m_colour = colour;
Chris@30:     emit layerParametersChanged();
Chris@30: }
Chris@30: 
Chris@30: void
Chris@30: NoteLayer::setVerticalScale(VerticalScale scale)
Chris@30: {
Chris@30:     if (m_verticalScale == scale) return;
Chris@30:     m_verticalScale = scale;
Chris@30:     emit layerParametersChanged();
Chris@30: }
Chris@30: 
Chris@30: bool
Chris@44: NoteLayer::isLayerScrollable(const View *v) const
Chris@30: {
Chris@30:     QPoint discard;
Chris@44:     return !v->shouldIlluminateLocalFeatures(this, discard);
Chris@30: }
Chris@30: 
Chris@30: NoteModel::PointList
Chris@44: NoteLayer::getLocalPoints(View *v, int x) const
Chris@30: {
Chris@30:     if (!m_model) return NoteModel::PointList();
Chris@30: 
Chris@44:     long frame = v->getFrameForX(x);
Chris@30: 
Chris@30:     NoteModel::PointList onPoints =
Chris@30: 	m_model->getPoints(frame);
Chris@30: 
Chris@30:     if (!onPoints.empty()) {
Chris@30: 	return onPoints;
Chris@30:     }
Chris@30: 
Chris@30:     NoteModel::PointList prevPoints =
Chris@30: 	m_model->getPreviousPoints(frame);
Chris@30:     NoteModel::PointList nextPoints =
Chris@30: 	m_model->getNextPoints(frame);
Chris@30: 
Chris@30:     NoteModel::PointList usePoints = prevPoints;
Chris@30: 
Chris@30:     if (prevPoints.empty()) {
Chris@30: 	usePoints = nextPoints;
Chris@44:     } else if (prevPoints.begin()->frame < v->getStartFrame() &&
Chris@44: 	       !(nextPoints.begin()->frame > v->getEndFrame())) {
Chris@30: 	usePoints = nextPoints;
Chris@30:     } else if (nextPoints.begin()->frame - frame <
Chris@30: 	       frame - prevPoints.begin()->frame) {
Chris@30: 	usePoints = nextPoints;
Chris@30:     }
Chris@30: 
Chris@30:     if (!usePoints.empty()) {
Chris@30: 	int fuzz = 2;
Chris@44: 	int px = v->getXForFrame(usePoints.begin()->frame);
Chris@30: 	if ((px > x && px - x > fuzz) ||
Chris@30: 	    (px < x && x - px > fuzz + 1)) {
Chris@30: 	    usePoints.clear();
Chris@30: 	}
Chris@30:     }
Chris@30: 
Chris@30:     return usePoints;
Chris@30: }
Chris@30: 
Chris@30: QString
Chris@44: NoteLayer::getFeatureDescription(View *v, QPoint &pos) const
Chris@30: {
Chris@30:     int x = pos.x();
Chris@30: 
Chris@30:     if (!m_model || !m_model->getSampleRate()) return "";
Chris@30: 
Chris@44:     NoteModel::PointList points = getLocalPoints(v, x);
Chris@30: 
Chris@30:     if (points.empty()) {
Chris@30: 	if (!m_model->isReady()) {
Chris@30: 	    return tr("In progress");
Chris@30: 	} else {
Chris@30: 	    return tr("No local points");
Chris@30: 	}
Chris@30:     }
Chris@30: 
Chris@30:     Note note(0);
Chris@30:     NoteModel::PointList::iterator i;
Chris@30: 
Chris@30:     for (i = points.begin(); i != points.end(); ++i) {
Chris@30: 
Chris@44: 	int y = getYForValue(v, i->value);
Chris@30: 	int h = 3;
Chris@30: 
Chris@30: 	if (m_model->getValueQuantization() != 0.0) {
Chris@44: 	    h = y - getYForValue(v, i->value + m_model->getValueQuantization());
Chris@30: 	    if (h < 3) h = 3;
Chris@30: 	}
Chris@30: 
Chris@30: 	if (pos.y() >= y - h && pos.y() <= y) {
Chris@30: 	    note = *i;
Chris@30: 	    break;
Chris@30: 	}
Chris@30:     }
Chris@30: 
Chris@30:     if (i == points.end()) return tr("No local points");
Chris@30: 
Chris@30:     RealTime rt = RealTime::frame2RealTime(note.frame,
Chris@30: 					   m_model->getSampleRate());
Chris@30:     RealTime rd = RealTime::frame2RealTime(note.duration,
Chris@30: 					   m_model->getSampleRate());
Chris@30:     
Chris@30:     QString text;
Chris@30: 
Chris@30:     if (note.label == "") {
Chris@30: 	text = QString(tr("Time:\t%1\nPitch:\t%2\nDuration:\t%3\nNo label"))
Chris@30: 	    .arg(rt.toText(true).c_str())
Chris@30: 	    .arg(note.value)
Chris@30: 	    .arg(rd.toText(true).c_str());
Chris@30:     } else {
Chris@30: 	text = QString(tr("Time:\t%1\nPitch:\t%2\nDuration:\t%3\nLabel:\t%4"))
Chris@30: 	    .arg(rt.toText(true).c_str())
Chris@30: 	    .arg(note.value)
Chris@30: 	    .arg(rd.toText(true).c_str())
Chris@30: 	    .arg(note.label);
Chris@30:     }
Chris@30: 
Chris@44:     pos = QPoint(v->getXForFrame(note.frame),
Chris@44: 		 getYForValue(v, note.value));
Chris@30:     return text;
Chris@30: }
Chris@30: 
Chris@30: bool
Chris@44: NoteLayer::snapToFeatureFrame(View *v, int &frame,
Chris@44: 			      size_t &resolution,
Chris@44: 			      SnapType snap) const
Chris@30: {
Chris@30:     if (!m_model) {
Chris@44: 	return Layer::snapToFeatureFrame(v, frame, resolution, snap);
Chris@30:     }
Chris@30: 
Chris@30:     resolution = m_model->getResolution();
Chris@30:     NoteModel::PointList points;
Chris@30: 
Chris@30:     if (snap == SnapNeighbouring) {
Chris@30: 	
Chris@44: 	points = getLocalPoints(v, v->getXForFrame(frame));
Chris@30: 	if (points.empty()) return false;
Chris@30: 	frame = points.begin()->frame;
Chris@30: 	return true;
Chris@30:     }    
Chris@30: 
Chris@30:     points = m_model->getPoints(frame, frame);
Chris@30:     int snapped = frame;
Chris@30:     bool found = false;
Chris@30: 
Chris@30:     for (NoteModel::PointList::const_iterator i = points.begin();
Chris@30: 	 i != points.end(); ++i) {
Chris@30: 
Chris@30: 	if (snap == SnapRight) {
Chris@30: 
Chris@30: 	    if (i->frame > frame) {
Chris@30: 		snapped = i->frame;
Chris@30: 		found = true;
Chris@30: 		break;
Chris@30: 	    }
Chris@30: 
Chris@30: 	} else if (snap == SnapLeft) {
Chris@30: 
Chris@30: 	    if (i->frame <= frame) {
Chris@30: 		snapped = i->frame;
Chris@30: 		found = true; // don't break, as the next may be better
Chris@30: 	    } else {
Chris@30: 		break;
Chris@30: 	    }
Chris@30: 
Chris@30: 	} else { // nearest
Chris@30: 
Chris@30: 	    NoteModel::PointList::const_iterator j = i;
Chris@30: 	    ++j;
Chris@30: 
Chris@30: 	    if (j == points.end()) {
Chris@30: 
Chris@30: 		snapped = i->frame;
Chris@30: 		found = true;
Chris@30: 		break;
Chris@30: 
Chris@30: 	    } else if (j->frame >= frame) {
Chris@30: 
Chris@30: 		if (j->frame - frame < frame - i->frame) {
Chris@30: 		    snapped = j->frame;
Chris@30: 		} else {
Chris@30: 		    snapped = i->frame;
Chris@30: 		}
Chris@30: 		found = true;
Chris@30: 		break;
Chris@30: 	    }
Chris@30: 	}
Chris@30:     }
Chris@30: 
Chris@30:     frame = snapped;
Chris@30:     return found;
Chris@30: }
Chris@30: 
Chris@30: int
Chris@44: NoteLayer::getYForValue(View *v, float value) const
Chris@30: {
Chris@44:     float min, max, h = v->height();
Chris@42: 
Chris@30:     switch (m_verticalScale) {
Chris@30: 
Chris@30:     case MIDIRangeScale:
Chris@30: 	min = 0.0;
Chris@30: 	max = 127.0;
Chris@30: 	break;
Chris@30: 
Chris@30:     case MinMaxRangeScale:
Chris@30: 	min = m_model->getValueMinimum();
Chris@30: 	max = m_model->getValueMaximum();
Chris@30: 	break;
Chris@30: 
Chris@30:     case FrequencyScale:
Chris@42:     
Chris@42: 	value = Pitch::getFrequencyForPitch(lrintf(value),
Chris@42: 					    value - lrintf(value));
Chris@42: 
Chris@42: 	// If we have a spectrogram layer on the same view as us, align
Chris@42: 	// ourselves with it...
Chris@44: 	for (int i = 0; i < v->getLayerCount(); ++i) {
Chris@42: 	    SpectrogramLayer *spectrogram = dynamic_cast<SpectrogramLayer *>
Chris@44: 		(v->getLayer(i));
Chris@42: 	    if (spectrogram) {
Chris@44: 		return spectrogram->getYForFrequency(v, value);
Chris@42: 	    }
Chris@42: 	}
Chris@42: 
Chris@42: 	// ...otherwise just interpolate
Chris@30: 	std::cerr << "FrequencyScale: value in = " << value << std::endl;
Chris@30: 	min = m_model->getValueMinimum();
Chris@30: 	min = Pitch::getFrequencyForPitch(lrintf(min), min - lrintf(min));
Chris@30: 	max = m_model->getValueMaximum();
Chris@30: 	max = Pitch::getFrequencyForPitch(lrintf(max), max - lrintf(max));
Chris@30: 	std::cerr << "FrequencyScale: min = " << min << ", max = " << max << ", value = " << value << std::endl;
Chris@30: 	break;
Chris@30:     }
Chris@30: 
Chris@30:     if (max < min) max = min;
Chris@30:     max = max + 1.0;
Chris@30: 
Chris@30:     return int(h - ((value - min) * h) / (max - min)) - 1;
Chris@30: }
Chris@30: 
Chris@30: float
Chris@44: NoteLayer::getValueForY(View *v, int y) const
Chris@30: {
Chris@30:     float min = m_model->getValueMinimum();
Chris@30:     float max = m_model->getValueMaximum();
Chris@30:     if (max == min) max = min + 1.0;
Chris@30: 
Chris@44:     int h = v->height();
Chris@30: 
Chris@30:     return min + (float(h - y) * float(max - min)) / h;
Chris@30: }
Chris@30: 
Chris@30: void
Chris@44: NoteLayer::paint(View *v, QPainter &paint, QRect rect) const
Chris@30: {
Chris@30:     if (!m_model || !m_model->isOK()) return;
Chris@30: 
Chris@30:     int sampleRate = m_model->getSampleRate();
Chris@30:     if (!sampleRate) return;
Chris@30: 
Chris@30: //    Profiler profiler("NoteLayer::paint", true);
Chris@30: 
Chris@30:     int x0 = rect.left(), x1 = rect.right();
Chris@44:     long frame0 = v->getFrameForX(x0);
Chris@44:     long frame1 = v->getFrameForX(x1);
Chris@30: 
Chris@30:     NoteModel::PointList points(m_model->getPoints(frame0, frame1));
Chris@30:     if (points.empty()) return;
Chris@30: 
Chris@30:     paint.setPen(m_colour);
Chris@30: 
Chris@30:     QColor brushColour(m_colour);
Chris@30:     brushColour.setAlpha(80);
Chris@30: 
Chris@30: //    std::cerr << "NoteLayer::paint: resolution is "
Chris@30: //	      << m_model->getResolution() << " frames" << std::endl;
Chris@30: 
Chris@30:     float min = m_model->getValueMinimum();
Chris@30:     float max = m_model->getValueMaximum();
Chris@30:     if (max == min) max = min + 1.0;
Chris@30: 
Chris@44:     int origin = int(nearbyint(v->height() -
Chris@44: 			       (-min * v->height()) / (max - min)));
Chris@30: 
Chris@30:     QPoint localPos;
Chris@30:     long illuminateFrame = -1;
Chris@30: 
Chris@44:     if (v->shouldIlluminateLocalFeatures(this, localPos)) {
Chris@30: 	NoteModel::PointList localPoints =
Chris@44: 	    getLocalPoints(v, localPos.x());
Chris@30: 	if (!localPoints.empty()) illuminateFrame = localPoints.begin()->frame;
Chris@30:     }
Chris@30: 
Chris@30:     paint.save();
Chris@30:     paint.setRenderHint(QPainter::Antialiasing, false);
Chris@30:     
Chris@30:     for (NoteModel::PointList::const_iterator i = points.begin();
Chris@30: 	 i != points.end(); ++i) {
Chris@30: 
Chris@30: 	const NoteModel::Point &p(*i);
Chris@30: 
Chris@44: 	int x = v->getXForFrame(p.frame);
Chris@44: 	int y = getYForValue(v, p.value);
Chris@44: 	int w = v->getXForFrame(p.frame + p.duration) - x;
Chris@30: 	int h = 3;
Chris@30: 	
Chris@30: 	if (m_model->getValueQuantization() != 0.0) {
Chris@44: 	    h = y - getYForValue(v, p.value + m_model->getValueQuantization());
Chris@30: 	    if (h < 3) h = 3;
Chris@30: 	}
Chris@30: 
Chris@30: 	if (w < 1) w = 1;
Chris@30: 	paint.setPen(m_colour);
Chris@30: 	paint.setBrush(brushColour);
Chris@30: 
Chris@30: 	if (illuminateFrame == p.frame) {
Chris@30: 	    if (localPos.y() >= y - h && localPos.y() < y) {
Chris@30: 		paint.setPen(Qt::black);//!!!
Chris@30: 		paint.setBrush(Qt::black);//!!!
Chris@30: 	    }
Chris@30: 	}
Chris@30: 	
Chris@30: 	paint.drawRect(x, y - h, w, h);
Chris@30: 
Chris@30: ///	if (p.label != "") {
Chris@30: ///	    paint.drawText(x + 5, y - paint.fontMetrics().height() + paint.fontMetrics().ascent(), p.label);
Chris@30: ///	}
Chris@30:     }
Chris@30: 
Chris@30:     paint.restore();
Chris@30: }
Chris@30: 
Chris@30: void
Chris@44: NoteLayer::drawStart(View *v, QMouseEvent *e)
Chris@30: {
Chris@30:     std::cerr << "NoteLayer::drawStart(" << e->x() << "," << e->y() << ")" << std::endl;
Chris@30: 
Chris@30:     if (!m_model) return;
Chris@30: 
Chris@44:     long frame = v->getFrameForX(e->x());
Chris@30:     if (frame < 0) frame = 0;
Chris@30:     frame = frame / m_model->getResolution() * m_model->getResolution();
Chris@30: 
Chris@44:     float value = getValueForY(v, e->y());
Chris@30: 
Chris@30:     m_editingPoint = NoteModel::Point(frame, value, 0, tr("New Point"));
Chris@30:     m_originalPoint = m_editingPoint;
Chris@30: 
Chris@30:     if (m_editingCommand) m_editingCommand->finish();
Chris@30:     m_editingCommand = new NoteModel::EditCommand(m_model,
Chris@30: 						  tr("Draw Point"));
Chris@30:     m_editingCommand->addPoint(m_editingPoint);
Chris@30: 
Chris@30:     m_editing = true;
Chris@30: }
Chris@30: 
Chris@30: void
Chris@44: NoteLayer::drawDrag(View *v, QMouseEvent *e)
Chris@30: {
Chris@30:     std::cerr << "NoteLayer::drawDrag(" << e->x() << "," << e->y() << ")" << std::endl;
Chris@30: 
Chris@30:     if (!m_model || !m_editing) return;
Chris@30: 
Chris@44:     long frame = v->getFrameForX(e->x());
Chris@30:     if (frame < 0) frame = 0;
Chris@30:     frame = frame / m_model->getResolution() * m_model->getResolution();
Chris@30: 
Chris@44:     float value = getValueForY(v, e->y());
Chris@30: 
Chris@30:     m_editingCommand->deletePoint(m_editingPoint);
Chris@30:     m_editingPoint.frame = frame;
Chris@30:     m_editingPoint.value = value;
Chris@30:     m_editingCommand->addPoint(m_editingPoint);
Chris@30: }
Chris@30: 
Chris@30: void
Chris@44: NoteLayer::drawEnd(View *v, QMouseEvent *e)
Chris@30: {
Chris@30:     std::cerr << "NoteLayer::drawEnd(" << e->x() << "," << e->y() << ")" << std::endl;
Chris@30:     if (!m_model || !m_editing) return;
Chris@30:     m_editingCommand->finish();
Chris@30:     m_editingCommand = 0;
Chris@30:     m_editing = false;
Chris@30: }
Chris@30: 
Chris@30: void
Chris@44: NoteLayer::editStart(View *v, QMouseEvent *e)
Chris@30: {
Chris@30:     std::cerr << "NoteLayer::editStart(" << e->x() << "," << e->y() << ")" << std::endl;
Chris@30: 
Chris@30:     if (!m_model) return;
Chris@30: 
Chris@44:     NoteModel::PointList points = getLocalPoints(v, e->x());
Chris@30:     if (points.empty()) return;
Chris@30: 
Chris@30:     m_editingPoint = *points.begin();
Chris@30:     m_originalPoint = m_editingPoint;
Chris@30: 
Chris@30:     if (m_editingCommand) {
Chris@30: 	m_editingCommand->finish();
Chris@30: 	m_editingCommand = 0;
Chris@30:     }
Chris@30: 
Chris@30:     m_editing = true;
Chris@30: }
Chris@30: 
Chris@30: void
Chris@44: NoteLayer::editDrag(View *v, QMouseEvent *e)
Chris@30: {
Chris@30:     std::cerr << "NoteLayer::editDrag(" << e->x() << "," << e->y() << ")" << std::endl;
Chris@30: 
Chris@30:     if (!m_model || !m_editing) return;
Chris@30: 
Chris@44:     long frame = v->getFrameForX(e->x());
Chris@30:     if (frame < 0) frame = 0;
Chris@30:     frame = frame / m_model->getResolution() * m_model->getResolution();
Chris@30: 
Chris@44:     float value = getValueForY(v, e->y());
Chris@30: 
Chris@30:     if (!m_editingCommand) {
Chris@30: 	m_editingCommand = new NoteModel::EditCommand(m_model,
Chris@30: 						      tr("Drag Point"));
Chris@30:     }
Chris@30: 
Chris@30:     m_editingCommand->deletePoint(m_editingPoint);
Chris@30:     m_editingPoint.frame = frame;
Chris@30:     m_editingPoint.value = value;
Chris@30:     m_editingCommand->addPoint(m_editingPoint);
Chris@30: }
Chris@30: 
Chris@30: void
Chris@44: NoteLayer::editEnd(View *v, QMouseEvent *e)
Chris@30: {
Chris@30:     std::cerr << "NoteLayer::editEnd(" << e->x() << "," << e->y() << ")" << std::endl;
Chris@30:     if (!m_model || !m_editing) return;
Chris@30: 
Chris@30:     if (m_editingCommand) {
Chris@30: 
Chris@30: 	QString newName = m_editingCommand->getName();
Chris@30: 
Chris@30: 	if (m_editingPoint.frame != m_originalPoint.frame) {
Chris@30: 	    if (m_editingPoint.value != m_originalPoint.value) {
Chris@30: 		newName = tr("Edit Point");
Chris@30: 	    } else {
Chris@30: 		newName = tr("Relocate Point");
Chris@30: 	    }
Chris@30: 	} else {
Chris@30: 	    newName = tr("Change Point Value");
Chris@30: 	}
Chris@30: 
Chris@30: 	m_editingCommand->setName(newName);
Chris@30: 	m_editingCommand->finish();
Chris@30:     }
Chris@30: 
Chris@30:     m_editingCommand = 0;
Chris@30:     m_editing = false;
Chris@30: }
Chris@30: 
Chris@43: void
Chris@43: NoteLayer::moveSelection(Selection s, size_t newStartFrame)
Chris@43: {
Chris@43:     NoteModel::EditCommand *command =
Chris@43: 	new NoteModel::EditCommand(m_model, tr("Drag Selection"));
Chris@43: 
Chris@43:     NoteModel::PointList points =
Chris@43: 	m_model->getPoints(s.getStartFrame(), s.getEndFrame());
Chris@43: 
Chris@43:     for (NoteModel::PointList::iterator i = points.begin();
Chris@43: 	 i != points.end(); ++i) {
Chris@43: 
Chris@43: 	if (s.contains(i->frame)) {
Chris@43: 	    NoteModel::Point newPoint(*i);
Chris@43: 	    newPoint.frame = i->frame + newStartFrame - s.getStartFrame();
Chris@43: 	    command->deletePoint(*i);
Chris@43: 	    command->addPoint(newPoint);
Chris@43: 	}
Chris@43:     }
Chris@43: 
Chris@43:     command->finish();
Chris@43: }
Chris@43: 
Chris@43: void
Chris@43: NoteLayer::resizeSelection(Selection s, Selection newSize)
Chris@43: {
Chris@43:     NoteModel::EditCommand *command =
Chris@43: 	new NoteModel::EditCommand(m_model, tr("Resize Selection"));
Chris@43: 
Chris@43:     NoteModel::PointList points =
Chris@43: 	m_model->getPoints(s.getStartFrame(), s.getEndFrame());
Chris@43: 
Chris@43:     double ratio =
Chris@43: 	double(newSize.getEndFrame() - newSize.getStartFrame()) /
Chris@43: 	double(s.getEndFrame() - s.getStartFrame());
Chris@43: 
Chris@43:     for (NoteModel::PointList::iterator i = points.begin();
Chris@43: 	 i != points.end(); ++i) {
Chris@43: 
Chris@43: 	if (s.contains(i->frame)) {
Chris@43: 
Chris@43: 	    double targetStart = i->frame;
Chris@43: 	    targetStart = newSize.getStartFrame() + 
Chris@43: 		double(targetStart - s.getStartFrame()) * ratio;
Chris@43: 
Chris@43: 	    double targetEnd = i->frame + i->duration;
Chris@43: 	    targetEnd = newSize.getStartFrame() +
Chris@43: 		double(targetEnd - s.getStartFrame()) * ratio;
Chris@43: 
Chris@43: 	    NoteModel::Point newPoint(*i);
Chris@43: 	    newPoint.frame = lrint(targetStart);
Chris@43: 	    newPoint.duration = lrint(targetEnd - targetStart);
Chris@43: 	    command->deletePoint(*i);
Chris@43: 	    command->addPoint(newPoint);
Chris@43: 	}
Chris@43:     }
Chris@43: 
Chris@43:     command->finish();
Chris@43: }
Chris@43: 
Chris@30: QString
Chris@30: NoteLayer::toXmlString(QString indent, QString extraAttributes) const
Chris@30: {
Chris@30:     return Layer::toXmlString(indent, extraAttributes +
Chris@30: 			      QString(" colour=\"%1\" verticalScale=\"%2\"")
Chris@30: 			      .arg(encodeColour(m_colour)).arg(m_verticalScale));
Chris@30: }
Chris@30: 
Chris@30: void
Chris@30: NoteLayer::setProperties(const QXmlAttributes &attributes)
Chris@30: {
Chris@30:     QString colourSpec = attributes.value("colour");
Chris@30:     if (colourSpec != "") {
Chris@30: 	QColor colour(colourSpec);
Chris@30: 	if (colour.isValid()) {
Chris@30: 	    setBaseColour(QColor(colourSpec));
Chris@30: 	}
Chris@30:     }
Chris@30: 
Chris@30:     bool ok;
Chris@30:     VerticalScale scale = (VerticalScale)
Chris@30: 	attributes.value("verticalScale").toInt(&ok);
Chris@30:     if (ok) setVerticalScale(scale);
Chris@30: }
Chris@30: 
Chris@30: