Chris@58: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
Chris@35: 
Chris@35: /*
Chris@59:     Sonic Visualiser
Chris@59:     An audio file viewer and annotation editor.
Chris@59:     Centre for Digital Music, Queen Mary, University of London.
Chris@59:     This file copyright 2006 Chris Cannam.
Chris@35:     
Chris@59:     This program is free software; you can redistribute it and/or
Chris@59:     modify it under the terms of the GNU General Public License as
Chris@59:     published by the Free Software Foundation; either version 2 of the
Chris@59:     License, or (at your option) any later version.  See the file
Chris@59:     COPYING included with this distribution for more information.
Chris@35: */
Chris@35: 
Chris@35: #include "TextLayer.h"
Chris@35: 
Chris@128: #include "data/model/Model.h"
Chris@35: #include "base/RealTime.h"
Chris@35: #include "base/Profiler.h"
Chris@376: #include "ColourDatabase.h"
Chris@128: #include "view/View.h"
Chris@35: 
Chris@128: #include "data/model/TextModel.h"
Chris@35: 
Chris@35: #include <QPainter>
Chris@35: #include <QMouseEvent>
Chris@36: #include <QInputDialog>
Chris@316: #include <QTextStream>
Chris@360: #include <QMessageBox>
Chris@35: 
Chris@35: #include <iostream>
Chris@35: #include <cmath>
Chris@35: 
Chris@44: TextLayer::TextLayer() :
Chris@287:     SingleColourLayer(),
Chris@1408:     m_model(nullptr),
Chris@35:     m_editing(false),
Chris@35:     m_originalPoint(0, 0.0, tr("Empty Label")),
Chris@35:     m_editingPoint(0, 0.0, tr("Empty Label")),
Chris@1408:     m_editingCommand(nullptr)
Chris@35: {
Chris@44:     
Chris@35: }
Chris@35: 
Chris@35: void
Chris@35: TextLayer::setModel(TextModel *model)
Chris@35: {
Chris@35:     if (m_model == model) return;
Chris@35:     m_model = model;
Chris@35: 
Chris@320:     connectSignals(m_model);
Chris@35: 
Chris@587: //    SVDEBUG << "TextLayer::setModel(" << model << ")" << endl;
Chris@35: 
Chris@35:     emit modelReplaced();
Chris@35: }
Chris@35: 
Chris@35: Layer::PropertyList
Chris@35: TextLayer::getProperties() const
Chris@35: {
Chris@287:     PropertyList list = SingleColourLayer::getProperties();
Chris@35:     return list;
Chris@35: }
Chris@35: 
Chris@87: QString
Chris@87: TextLayer::getPropertyLabel(const PropertyName &name) const
Chris@87: {
Chris@287:     return SingleColourLayer::getPropertyLabel(name);
Chris@87: }
Chris@87: 
Chris@35: Layer::PropertyType
Chris@287: TextLayer::getPropertyType(const PropertyName &name) const
Chris@35: {
Chris@287:     return SingleColourLayer::getPropertyType(name);
Chris@35: }
Chris@35: 
Chris@35: int
Chris@35: TextLayer::getPropertyRangeAndValue(const PropertyName &name,
Chris@1266:                                     int *min, int *max, int *deflt) const
Chris@35: {
Chris@287:     return SingleColourLayer::getPropertyRangeAndValue(name, min, max, deflt);
Chris@35: }
Chris@35: 
Chris@35: QString
Chris@35: TextLayer::getPropertyValueLabel(const PropertyName &name,
Chris@1266:                                  int value) const
Chris@35: {
Chris@287:     return SingleColourLayer::getPropertyValueLabel(name, value);
Chris@35: }
Chris@35: 
Chris@35: void
Chris@35: TextLayer::setProperty(const PropertyName &name, int value)
Chris@35: {
Chris@287:     SingleColourLayer::setProperty(name, value);
Chris@35: }
Chris@35: 
Chris@79: bool
Chris@908: TextLayer::getValueExtents(double &, double &, bool &, QString &) const
Chris@79: {
Chris@79:     return false;
Chris@79: }
Chris@79: 
Chris@35: bool
Chris@918: TextLayer::isLayerScrollable(const LayerGeometryProvider *v) const
Chris@35: {
Chris@35:     QPoint discard;
Chris@44:     return !v->shouldIlluminateLocalFeatures(this, discard);
Chris@35: }
Chris@35: 
Chris@1437: EventVector
Chris@918: TextLayer::getLocalPoints(LayerGeometryProvider *v, int x, int y) const
Chris@35: {
Chris@1437:     if (!m_model) return {};
Chris@35: 
Chris@1437:     int overlap = ViewManager::scalePixelSize(150);
Chris@35:     
Chris@1437:     sv_frame_t frame0 = v->getFrameForX(-overlap);
Chris@1437:     sv_frame_t frame1 = v->getFrameForX(v->getPaintWidth() + overlap);
Chris@1437:     
Chris@1437:     EventVector points(m_model->getEventsSpanning(frame0, frame1 - frame0));
Chris@35: 
Chris@1437:     EventVector rv;
Chris@552:     QFontMetrics metrics = QFontMetrics(QFont());
Chris@35: 
Chris@1437:     for (EventVector::iterator i = points.begin(); i != points.end(); ++i) {
Chris@35: 
Chris@1437:         Event p(*i);
Chris@35: 
Chris@1437:         int px = v->getXForFrame(p.getFrame());
Chris@1437:         int py = getYForHeight(v, p.getValue());
Chris@35: 
Chris@1437:         QString label = p.getLabel();
Chris@1266:         if (label == "") {
Chris@1266:             label = tr("<no text>");
Chris@1266:         }
Chris@35: 
Chris@1266:         QRect rect = metrics.boundingRect
Chris@1266:             (QRect(0, 0, 150, 200),
Chris@1266:              Qt::AlignLeft | Qt::AlignTop | Qt::TextWordWrap, label);
Chris@35: 
Chris@1266:         if (py + rect.height() > v->getPaintHeight()) {
Chris@1266:             if (rect.height() > v->getPaintHeight()) py = 0;
Chris@1266:             else py = v->getPaintHeight() - rect.height() - 1;
Chris@1266:         }
Chris@35: 
Chris@1266:         if (x >= px && x < px + rect.width() &&
Chris@1266:             y >= py && y < py + rect.height()) {
Chris@1437:             rv.push_back(p);
Chris@1266:         }
Chris@35:     }
Chris@35: 
Chris@35:     return rv;
Chris@35: }
Chris@35: 
Chris@552: bool
Chris@1437: TextLayer::getPointToDrag(LayerGeometryProvider *v, int x, int y, Event &p) const
Chris@552: {
Chris@552:     if (!m_model) return false;
Chris@552: 
Chris@1437:     sv_frame_t a = v->getFrameForX(x - ViewManager::scalePixelSize(120));
Chris@1437:     sv_frame_t b = v->getFrameForX(x + ViewManager::scalePixelSize(10));
Chris@1437:     EventVector onPoints = m_model->getEventsWithin(a, b);
Chris@552:     if (onPoints.empty()) return false;
Chris@552: 
Chris@908:     double nearestDistance = -1;
Chris@552: 
Chris@1437:     for (EventVector::const_iterator i = onPoints.begin();
Chris@552:          i != onPoints.end(); ++i) {
Chris@552: 
Chris@1437:         double yd = getYForHeight(v, i->getValue()) - y;
Chris@1437:         double xd = v->getXForFrame(i->getFrame()) - x;
Chris@908:         double distance = sqrt(yd*yd + xd*xd);
Chris@552: 
Chris@552:         if (nearestDistance == -1 || distance < nearestDistance) {
Chris@552:             nearestDistance = distance;
Chris@552:             p = *i;
Chris@552:         }
Chris@552:     }
Chris@552: 
Chris@552:     return true;
Chris@552: }
Chris@552: 
Chris@35: QString
Chris@918: TextLayer::getFeatureDescription(LayerGeometryProvider *v, QPoint &pos) const
Chris@35: {
Chris@35:     int x = pos.x();
Chris@35: 
Chris@35:     if (!m_model || !m_model->getSampleRate()) return "";
Chris@35: 
Chris@1437:     EventVector points = getLocalPoints(v, x, pos.y());
Chris@35: 
Chris@35:     if (points.empty()) {
Chris@1266:         if (!m_model->isReady()) {
Chris@1266:             return tr("In progress");
Chris@1266:         } else {
Chris@1266:             return "";
Chris@1266:         }
Chris@35:     }
Chris@35: 
Chris@1437:     sv_frame_t useFrame = points.begin()->getFrame();
Chris@35: 
Chris@35:     RealTime rt = RealTime::frame2RealTime(useFrame, m_model->getSampleRate());
Chris@35:     
Chris@35:     QString text;
Chris@35: 
Chris@1437:     if (points.begin()->getLabel() == "") {
Chris@1266:         text = QString(tr("Time:\t%1\nHeight:\t%2\nLabel:\t%3"))
Chris@1266:             .arg(rt.toText(true).c_str())
Chris@1437:             .arg(points.begin()->getValue())
Chris@1437:             .arg(points.begin()->getLabel());
Chris@35:     }
Chris@35: 
Chris@44:     pos = QPoint(v->getXForFrame(useFrame),
Chris@1437:                  getYForHeight(v, points.begin()->getValue()));
Chris@35:     return text;
Chris@35: }
Chris@35: 
Chris@35: 
Chris@35: //!!! too much overlap with TimeValueLayer/TimeInstantLayer
Chris@35: 
Chris@35: bool
Chris@918: TextLayer::snapToFeatureFrame(LayerGeometryProvider *v, sv_frame_t &frame,
Chris@1266:                               int &resolution,
Chris@1266:                               SnapType snap) const
Chris@35: {
Chris@35:     if (!m_model) {
Chris@1266:         return Layer::snapToFeatureFrame(v, frame, resolution, snap);
Chris@35:     }
Chris@35: 
Chris@1437:     // SnapLeft / SnapRight: return frame of nearest feature in that
Chris@1437:     // direction no matter how far away
Chris@1437:     //
Chris@1437:     // SnapNeighbouring: return frame of feature that would be used in
Chris@1437:     // an editing operation, i.e. closest feature in either direction
Chris@1437:     // but only if it is "close enough"
Chris@1437: 
Chris@35:     resolution = m_model->getResolution();
Chris@35: 
Chris@35:     if (snap == SnapNeighbouring) {
Chris@1437:         EventVector points = getLocalPoints(v, v->getXForFrame(frame), -1);
Chris@1266:         if (points.empty()) return false;
Chris@1437:         frame = points.begin()->getFrame();
Chris@1266:         return true;
Chris@35:     }    
Chris@35: 
Chris@1437:     Event e;
Chris@1437:     if (m_model->getNearestEventMatching
Chris@1437:         (frame,
Chris@1437:          [](Event) { return true; },
Chris@1437:          snap == SnapLeft ? EventSeries::Backward : EventSeries::Forward,
Chris@1437:          e)) {
Chris@1437:         frame = e.getFrame();
Chris@1437:         return true;
Chris@35:     }
Chris@35: 
Chris@1437:     return false;
Chris@35: }
Chris@35: 
Chris@35: int
Chris@918: TextLayer::getYForHeight(LayerGeometryProvider *v, double height) const
Chris@35: {
Chris@918:     int h = v->getPaintHeight();
Chris@35:     return h - int(height * h);
Chris@35: }
Chris@35: 
Chris@908: double
Chris@918: TextLayer::getHeightForY(LayerGeometryProvider *v, int y) const
Chris@35: {
Chris@918:     int h = v->getPaintHeight();
Chris@908:     return double(h - y) / h;
Chris@35: }
Chris@35: 
Chris@35: void
Chris@916: TextLayer::paint(LayerGeometryProvider *v, QPainter &paint, QRect rect) const
Chris@35: {
Chris@35:     if (!m_model || !m_model->isOK()) return;
Chris@35: 
Chris@908:     sv_samplerate_t sampleRate = m_model->getSampleRate();
Chris@35:     if (!sampleRate) return;
Chris@35: 
Chris@35: //    Profiler profiler("TextLayer::paint", true);
Chris@35: 
Chris@35:     int x0 = rect.left(), x1 = rect.right();
Chris@1437:     int overlap = ViewManager::scalePixelSize(150);
Chris@1437:     sv_frame_t frame0 = v->getFrameForX(x0 - overlap);
Chris@1437:     sv_frame_t frame1 = v->getFrameForX(x1 + overlap);
Chris@35: 
Chris@1437:     EventVector points(m_model->getEventsWithin(frame0, frame1 - frame0, 2));
Chris@35:     if (points.empty()) return;
Chris@35: 
Chris@287:     QColor brushColour(getBaseQColor());
Chris@35: 
Chris@44:     int h, s, val;
Chris@44:     brushColour.getHsv(&h, &s, &val);
Chris@36:     brushColour.setHsv(h, s, 255, 100);
Chris@36: 
Chris@36:     QColor penColour;
Chris@287:     penColour = v->getForeground();
Chris@35: 
Chris@587: //    SVDEBUG << "TextLayer::paint: resolution is "
Chris@1266: //              << m_model->getResolution() << " frames" << endl;
Chris@35: 
Chris@35:     QPoint localPos;
Chris@1437:     Event illuminatePoint(0);
Chris@850:     bool shouldIlluminate = false;
Chris@35: 
Chris@44:     if (v->shouldIlluminateLocalFeatures(this, localPos)) {
Chris@552:         shouldIlluminate = getPointToDrag(v, localPos.x(), localPos.y(),
Chris@552:                                           illuminatePoint);
Chris@35:     }
Chris@35: 
Chris@35:     int boxMaxWidth = 150;
Chris@35:     int boxMaxHeight = 200;
Chris@35: 
Chris@35:     paint.save();
Chris@918:     paint.setClipRect(rect.x(), 0, rect.width() + boxMaxWidth, v->getPaintHeight());
Chris@35:     
Chris@1437:     for (EventVector::const_iterator i = points.begin();
Chris@1266:          i != points.end(); ++i) {
Chris@35: 
Chris@1437:         Event p(*i);
Chris@35: 
Chris@1437:         int x = v->getXForFrame(p.getFrame());
Chris@1437:         int y = getYForHeight(v, p.getValue());
Chris@35: 
Chris@1437:         if (!shouldIlluminate || illuminatePoint != p) {
Chris@1266:             paint.setPen(penColour);
Chris@1266:             paint.setBrush(brushColour);
Chris@552:         } else {
Chris@1266:             paint.setBrush(penColour);
Chris@287:             paint.setPen(v->getBackground());
Chris@1266:         }
Chris@35: 
Chris@1437:         QString label = p.getLabel();
Chris@1266:         if (label == "") {
Chris@1266:             label = tr("<no text>");
Chris@1266:         }
Chris@35: 
Chris@1266:         QRect boxRect = paint.fontMetrics().boundingRect
Chris@1266:             (QRect(0, 0, boxMaxWidth, boxMaxHeight),
Chris@1266:              Qt::AlignLeft | Qt::AlignTop | Qt::TextWordWrap, label);
Chris@35: 
Chris@1266:         QRect textRect = QRect(3, 2, boxRect.width(), boxRect.height());
Chris@1266:         boxRect = QRect(0, 0, boxRect.width() + 6, boxRect.height() + 2);
Chris@35: 
Chris@1266:         if (y + boxRect.height() > v->getPaintHeight()) {
Chris@1266:             if (boxRect.height() > v->getPaintHeight()) y = 0;
Chris@1266:             else y = v->getPaintHeight() - boxRect.height() - 1;
Chris@1266:         }
Chris@35: 
Chris@1266:         boxRect = QRect(x, y, boxRect.width(), boxRect.height());
Chris@1266:         textRect = QRect(x + 3, y + 2, textRect.width(), textRect.height());
Chris@35: 
Chris@1266: //        boxRect = QRect(x, y, boxRect.width(), boxRect.height());
Chris@1266: //        textRect = QRect(x + 3, y + 2, textRect.width(), textRect.height());
Chris@35: 
Chris@1266:         paint.setRenderHint(QPainter::Antialiasing, false);
Chris@1266:         paint.drawRect(boxRect);
Chris@35: 
Chris@1266:         paint.setRenderHint(QPainter::Antialiasing, true);
Chris@1266:         paint.drawText(textRect,
Chris@1266:                        Qt::AlignLeft | Qt::AlignTop | Qt::TextWordWrap,
Chris@1266:                        label);
Chris@35: 
Chris@1437: ///        if (p.getLabel() != "") {
Chris@1437: ///            paint.drawText(x + 5, y - paint.fontMetrics().height() + paint.fontMetrics().ascent(), p.getLabel());
Chris@1266: ///        }
Chris@35:     }
Chris@35: 
Chris@35:     paint.restore();
Chris@35: 
Chris@35:     // looks like save/restore doesn't deal with this:
Chris@35:     paint.setRenderHint(QPainter::Antialiasing, false);
Chris@35: }
Chris@35: 
Chris@35: void
Chris@918: TextLayer::drawStart(LayerGeometryProvider *v, QMouseEvent *e)
Chris@35: {
Chris@587: //    SVDEBUG << "TextLayer::drawStart(" << e->x() << "," << e->y() << ")" << endl;
Chris@35: 
Chris@35:     if (!m_model) {
Chris@1266:         SVDEBUG << "TextLayer::drawStart: no model" << endl;
Chris@1266:         return;
Chris@35:     }
Chris@35: 
Chris@908:     sv_frame_t frame = v->getFrameForX(e->x());
Chris@35:     if (frame < 0) frame = 0;
Chris@35:     frame = frame / m_model->getResolution() * m_model->getResolution();
Chris@35: 
Chris@908:     double height = getHeightForY(v, e->y());
Chris@35: 
Chris@1437:     m_editingPoint = Event(frame, float(height), "");
Chris@35:     m_originalPoint = m_editingPoint;
Chris@35: 
Chris@376:     if (m_editingCommand) finish(m_editingCommand);
Chris@1437:     m_editingCommand = new ChangeEventsCommand(m_model, "Add Label");
Chris@1437:     m_editingCommand->add(m_editingPoint);
Chris@35: 
Chris@35:     m_editing = true;
Chris@35: }
Chris@35: 
Chris@35: void
Chris@918: TextLayer::drawDrag(LayerGeometryProvider *v, QMouseEvent *e)
Chris@35: {
Chris@587: //    SVDEBUG << "TextLayer::drawDrag(" << e->x() << "," << e->y() << ")" << endl;
Chris@35: 
Chris@35:     if (!m_model || !m_editing) return;
Chris@35: 
Chris@908:     sv_frame_t frame = v->getFrameForX(e->x());
Chris@35:     if (frame < 0) frame = 0;
Chris@35:     frame = frame / m_model->getResolution() * m_model->getResolution();
Chris@35: 
Chris@908:     double height = getHeightForY(v, e->y());
Chris@35: 
Chris@1437:     m_editingCommand->remove(m_editingPoint);
Chris@1437:     m_editingPoint = m_editingPoint
Chris@1437:         .withFrame(frame)
Chris@1437:         .withValue(float(height));
Chris@1437:     m_editingCommand->add(m_editingPoint);
Chris@35: }
Chris@35: 
Chris@35: void
Chris@918: TextLayer::drawEnd(LayerGeometryProvider *v, QMouseEvent *)
Chris@35: {
Chris@587: //    SVDEBUG << "TextLayer::drawEnd(" << e->x() << "," << e->y() << ")" << endl;
Chris@35:     if (!m_model || !m_editing) return;
Chris@36: 
Chris@36:     bool ok = false;
Chris@918:     QString label = QInputDialog::getText(v->getView(), tr("Enter label"),
Chris@1266:                                           tr("Please enter a new label:"),
Chris@1266:                                           QLineEdit::Normal, "", &ok);
Chris@36: 
Chris@1437:     m_editingCommand->remove(m_editingPoint);
Chris@1437:     
Chris@36:     if (ok) {
Chris@1437:         m_editingPoint = m_editingPoint
Chris@1437:             .withLabel(label);
Chris@1437:         m_editingCommand->add(m_editingPoint);
Chris@36:     }
Chris@36: 
Chris@376:     finish(m_editingCommand);
Chris@1408:     m_editingCommand = nullptr;
Chris@35:     m_editing = false;
Chris@35: }
Chris@35: 
Chris@35: void
Chris@918: TextLayer::eraseStart(LayerGeometryProvider *v, QMouseEvent *e)
Chris@335: {
Chris@335:     if (!m_model) return;
Chris@335: 
Chris@552:     if (!getPointToDrag(v, e->x(), e->y(), m_editingPoint)) return;
Chris@335: 
Chris@335:     if (m_editingCommand) {
Chris@1266:         finish(m_editingCommand);
Chris@1408:         m_editingCommand = nullptr;
Chris@335:     }
Chris@335: 
Chris@335:     m_editing = true;
Chris@335: }
Chris@335: 
Chris@335: void
Chris@918: TextLayer::eraseDrag(LayerGeometryProvider *, QMouseEvent *)
Chris@335: {
Chris@335: }
Chris@335: 
Chris@335: void
Chris@918: TextLayer::eraseEnd(LayerGeometryProvider *v, QMouseEvent *e)
Chris@335: {
Chris@335:     if (!m_model || !m_editing) return;
Chris@335: 
Chris@335:     m_editing = false;
Chris@335: 
Chris@1437:     Event p;
Chris@552:     if (!getPointToDrag(v, e->x(), e->y(), p)) return;
Chris@1437:     if (p.getFrame() != m_editingPoint.getFrame() ||
Chris@1437:         p.getValue() != m_editingPoint.getValue()) return;
Chris@335: 
Chris@1437:     m_editingCommand = new ChangeEventsCommand(m_model, tr("Erase Point"));
Chris@1437:     m_editingCommand->remove(m_editingPoint);
Chris@376:     finish(m_editingCommand);
Chris@1408:     m_editingCommand = nullptr;
Chris@335:     m_editing = false;
Chris@335: }
Chris@335: 
Chris@335: void
Chris@918: TextLayer::editStart(LayerGeometryProvider *v, QMouseEvent *e)
Chris@35: {
Chris@587: //    SVDEBUG << "TextLayer::editStart(" << e->x() << "," << e->y() << ")" << endl;
Chris@35: 
Chris@35:     if (!m_model) return;
Chris@35: 
Chris@552:     if (!getPointToDrag(v, e->x(), e->y(), m_editingPoint)) {
Chris@552:         return;
Chris@552:     }
Chris@35: 
Chris@36:     m_editOrigin = e->pos();
Chris@35:     m_originalPoint = m_editingPoint;
Chris@35: 
Chris@35:     if (m_editingCommand) {
Chris@1266:         finish(m_editingCommand);
Chris@1408:         m_editingCommand = nullptr;
Chris@35:     }
Chris@35: 
Chris@35:     m_editing = true;
Chris@35: }
Chris@35: 
Chris@35: void
Chris@918: TextLayer::editDrag(LayerGeometryProvider *v, QMouseEvent *e)
Chris@35: {
Chris@35:     if (!m_model || !m_editing) return;
Chris@35: 
Chris@1437:     sv_frame_t frameDiff =
Chris@1437:         v->getFrameForX(e->x()) - v->getFrameForX(m_editOrigin.x());
Chris@1437:     double heightDiff =
Chris@1437:         getHeightForY(v, e->y()) - getHeightForY(v, m_editOrigin.y());
Chris@36: 
Chris@1437:     sv_frame_t frame = m_originalPoint.getFrame() + frameDiff;
Chris@1437:     double height = m_originalPoint.getValue() + heightDiff;
Chris@36: 
Chris@35:     if (frame < 0) frame = 0;
Chris@36:     frame = (frame / m_model->getResolution()) * m_model->getResolution();
Chris@35: 
Chris@35:     if (!m_editingCommand) {
Chris@1437:         m_editingCommand = new ChangeEventsCommand(m_model, tr("Drag Label"));
Chris@35:     }
Chris@35: 
Chris@1437:     m_editingCommand->remove(m_editingPoint);
Chris@1437:     m_editingPoint = m_editingPoint
Chris@1437:         .withFrame(frame)
Chris@1437:         .withValue(float(height));
Chris@1437:     m_editingCommand->add(m_editingPoint);
Chris@35: }
Chris@35: 
Chris@35: void
Chris@918: TextLayer::editEnd(LayerGeometryProvider *, QMouseEvent *)
Chris@35: {
Chris@587: //    SVDEBUG << "TextLayer::editEnd(" << e->x() << "," << e->y() << ")" << endl;
Chris@35:     if (!m_model || !m_editing) return;
Chris@35: 
Chris@35:     if (m_editingCommand) {
Chris@35: 
Chris@1266:         QString newName = m_editingCommand->getName();
Chris@35: 
Chris@1437:         if (m_editingPoint.getFrame() != m_originalPoint.getFrame()) {
Chris@1437:             if (m_editingPoint.getValue() != m_originalPoint.getValue()) {
Chris@1266:                 newName = tr("Move Label");
Chris@1266:             } else {
Chris@1266:                 newName = tr("Move Label Horizontally");
Chris@1266:             }
Chris@1266:         } else {
Chris@1266:             newName = tr("Move Label Vertically");
Chris@1266:         }
Chris@35: 
Chris@1266:         m_editingCommand->setName(newName);
Chris@1266:         finish(m_editingCommand);
Chris@35:     }
Chris@35:     
Chris@1408:     m_editingCommand = nullptr;
Chris@35:     m_editing = false;
Chris@35: }
Chris@35: 
Chris@255: bool
Chris@918: TextLayer::editOpen(LayerGeometryProvider *v, QMouseEvent *e)
Chris@36: {
Chris@255:     if (!m_model) return false;
Chris@36: 
Chris@1437:     Event text;
Chris@552:     if (!getPointToDrag(v, e->x(), e->y(), text)) return false;
Chris@36: 
Chris@1437:     QString label = text.getLabel();
Chris@36: 
Chris@36:     bool ok = false;
Chris@918:     label = QInputDialog::getText(v->getView(), tr("Enter label"),
Chris@1266:                                   tr("Please enter a new label:"),
Chris@1266:                                   QLineEdit::Normal, label, &ok);
Chris@1437:     if (ok && label != text.getLabel()) {
Chris@1437:         ChangeEventsCommand *command =
Chris@1437:             new ChangeEventsCommand(m_model, tr("Re-Label Point"));
Chris@1437:         command->remove(text);
Chris@1437:         command->add(text.withLabel(label));
Chris@1437:         finish(command);
Chris@36:     }
Chris@255: 
Chris@255:     return true;
Chris@36: }    
Chris@36: 
Chris@43: void
Chris@908: TextLayer::moveSelection(Selection s, sv_frame_t newStartFrame)
Chris@43: {
Chris@99:     if (!m_model) return;
Chris@99: 
Chris@1437:     ChangeEventsCommand *command =
Chris@1437:         new ChangeEventsCommand(m_model, tr("Drag Selection"));
Chris@43: 
Chris@1437:     EventVector points =
Chris@1437:         m_model->getEventsStartingWithin(s.getStartFrame(), s.getDuration());
Chris@43: 
Chris@1437:     for (Event p: points) {
Chris@1437:         command->remove(p);
Chris@1437:         Event moved = p.withFrame(p.getFrame() +
Chris@1437:                                   newStartFrame - s.getStartFrame());
Chris@1437:         command->add(moved);
Chris@43:     }
Chris@43: 
Chris@376:     finish(command);
Chris@43: }
Chris@43: 
Chris@43: void
Chris@43: TextLayer::resizeSelection(Selection s, Selection newSize)
Chris@43: {
Chris@99:     if (!m_model) return;
Chris@99: 
Chris@1437:     ChangeEventsCommand *command =
Chris@1437:         new ChangeEventsCommand(m_model, tr("Resize Selection"));
Chris@43: 
Chris@1437:     EventVector points =
Chris@1437:         m_model->getEventsStartingWithin(s.getStartFrame(), s.getDuration());
Chris@43: 
Chris@1437:     double ratio = double(newSize.getDuration()) / double(s.getDuration());
Chris@1437:     double oldStart = double(s.getStartFrame());
Chris@1437:     double newStart = double(newSize.getStartFrame());
Chris@1437:     
Chris@1437:     for (Event p: points) {
Chris@43: 
Chris@1437:         double newFrame = (double(p.getFrame()) - oldStart) * ratio + newStart;
Chris@43: 
Chris@1437:         Event newPoint = p
Chris@1437:             .withFrame(lrint(newFrame));
Chris@1437:         command->remove(p);
Chris@1437:         command->add(newPoint);
Chris@43:     }
Chris@43: 
Chris@376:     finish(command);
Chris@43: }
Chris@43: 
Chris@76: void
Chris@76: TextLayer::deleteSelection(Selection s)
Chris@76: {
Chris@99:     if (!m_model) return;
Chris@99: 
Chris@1437:     ChangeEventsCommand *command =
Chris@1437:         new ChangeEventsCommand(m_model, tr("Delete Selection"));
Chris@76: 
Chris@1437:     EventVector points =
Chris@1437:         m_model->getEventsStartingWithin(s.getStartFrame(), s.getDuration());
Chris@76: 
Chris@1437:     for (Event p: points) {
Chris@1437:         command->remove(p);
Chris@76:     }
Chris@76: 
Chris@376:     finish(command);
Chris@76: }
Chris@76: 
Chris@76: void
Chris@918: TextLayer::copy(LayerGeometryProvider *v, Selection s, Clipboard &to)
Chris@76: {
Chris@99:     if (!m_model) return;
Chris@99: 
Chris@1437:     EventVector points =
Chris@1437:         m_model->getEventsStartingWithin(s.getStartFrame(), s.getDuration());
Chris@76: 
Chris@1437:     for (Event p: points) {
Chris@1437:         to.addPoint(p.withReferenceFrame(alignToReference(v, p.getFrame())));
Chris@76:     }
Chris@76: }
Chris@76: 
Chris@125: bool
Chris@918: TextLayer::paste(LayerGeometryProvider *v, const Clipboard &from, sv_frame_t /* frameOffset */, bool /* interactive */)
Chris@76: {
Chris@125:     if (!m_model) return false;
Chris@99: 
Chris@1423:     const EventVector &points = from.getPoints();
Chris@76: 
Chris@360:     bool realign = false;
Chris@360: 
Chris@360:     if (clipboardHasDifferentAlignment(v, from)) {
Chris@360: 
Chris@360:         QMessageBox::StandardButton button =
Chris@918:             QMessageBox::question(v->getView(), tr("Re-align pasted items?"),
Chris@360:                                   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?"),
Chris@360:                                   QMessageBox::Yes | QMessageBox::No | QMessageBox::Cancel,
Chris@360:                                   QMessageBox::Yes);
Chris@360: 
Chris@360:         if (button == QMessageBox::Cancel) {
Chris@360:             return false;
Chris@360:         }
Chris@360: 
Chris@360:         if (button == QMessageBox::Yes) {
Chris@360:             realign = true;
Chris@360:         }
Chris@360:     }
Chris@360: 
Chris@1437:     ChangeEventsCommand *command =
Chris@1437:         new ChangeEventsCommand(m_model, tr("Paste"));
Chris@76: 
Chris@908:     double valueMin = 0.0, valueMax = 1.0;
Chris@1423:     for (EventVector::const_iterator i = points.begin();
Chris@125:          i != points.end(); ++i) {
Chris@1423:         if (i->hasValue()) {
Chris@125:             if (i->getValue() < valueMin) valueMin = i->getValue();
Chris@125:             if (i->getValue() > valueMax) valueMax = i->getValue();
Chris@125:         }
Chris@125:     }
Chris@125:     if (valueMax < valueMin + 1.0) valueMax = valueMin + 1.0;
Chris@125: 
Chris@1423:     for (EventVector::const_iterator i = points.begin();
Chris@76:          i != points.end(); ++i) {
Chris@76:         
Chris@908:         sv_frame_t frame = 0;
Chris@360:         
Chris@360:         if (!realign) {
Chris@360:             
Chris@360:             frame = i->getFrame();
Chris@360: 
Chris@360:         } else {
Chris@360: 
Chris@1423:             if (i->hasReferenceFrame()) {
Chris@360:                 frame = i->getReferenceFrame();
Chris@360:                 frame = alignFromReference(v, frame);
Chris@360:             } else {
Chris@360:                 frame = i->getFrame();
Chris@360:             }
Chris@76:         }
Chris@360: 
Chris@1437:         Event p = *i;
Chris@1437:         Event newPoint = p;
Chris@1437:         if (p.hasValue()) {
Chris@1437:             newPoint = newPoint.withValue(float((i->getValue() - valueMin) /
Chris@1437:                                                 (valueMax - valueMin)));
Chris@125:         } else {
Chris@1437:             newPoint = newPoint.withValue(0.5f);
Chris@125:         }
Chris@125: 
Chris@1437:         if (!p.hasLabel()) {
Chris@1437:             if (p.hasValue()) {
Chris@1437:                 newPoint = newPoint.withLabel(QString("%1").arg(p.getValue()));
Chris@1437:             } else {
Chris@1437:                 newPoint = newPoint.withLabel(tr("New Point"));
Chris@1437:             }
Chris@125:         }
Chris@76:         
Chris@1437:         command->add(newPoint);
Chris@76:     }
Chris@76: 
Chris@376:     finish(command);
Chris@125:     return true;
Chris@76: }
Chris@76: 
Chris@287: int
Chris@287: TextLayer::getDefaultColourHint(bool darkbg, bool &impose)
Chris@287: {
Chris@287:     impose = false;
Chris@287:     return ColourDatabase::getInstance()->getColourIndex
Chris@287:         (QString(darkbg ? "Bright Orange" : "Orange"));
Chris@287: }
Chris@287: 
Chris@316: void
Chris@316: TextLayer::toXml(QTextStream &stream,
Chris@316:                  QString indent, QString extraAttributes) const
Chris@35: {
Chris@316:     SingleColourLayer::toXml(stream, indent, extraAttributes);
Chris@35: }
Chris@35: 
Chris@35: void
Chris@35: TextLayer::setProperties(const QXmlAttributes &attributes)
Chris@35: {
Chris@287:     SingleColourLayer::setProperties(attributes);
Chris@35: }
Chris@35: