Mercurial > hg > svgui
view layer/Layer.cpp @ 887:139aad8bb445
Wire up note/octave stuff
author | Chris Cannam |
---|---|
date | Tue, 02 Dec 2014 17:53:17 +0000 |
parents | 4c8ca536b54f |
children | e0f08e108064 |
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/* -*- 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 and QMUL. 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 "Layer.h" #include "view/View.h" #include "data/model/Model.h" #include "widgets/CommandHistory.h" #include <iostream> #include <QMutexLocker> #include <QMouseEvent> #include <QTextStream> #include <QDomDocument> #include <QDomElement> #include <QDomNamedNodeMap> #include <QDomAttr> #include "LayerFactory.h" #include "base/PlayParameterRepository.h" #include <cmath> Layer::Layer() : m_haveDraggingRect(false), m_haveCurrentMeasureRect(false) { } Layer::~Layer() { // SVDEBUG << "Layer::~Layer(" << this << ")" << endl; } void Layer::connectSignals(const Model *model) { connect(model, SIGNAL(modelChanged()), this, SIGNAL(modelChanged())); connect(model, SIGNAL(modelChangedWithin(int, int)), this, SIGNAL(modelChangedWithin(int, int))); connect(model, SIGNAL(completionChanged()), this, SIGNAL(modelCompletionChanged())); connect(model, SIGNAL(alignmentCompletionChanged()), this, SIGNAL(modelAlignmentCompletionChanged())); } QString Layer::getPropertyContainerIconName() const { return LayerFactory::getInstance()->getLayerIconName (LayerFactory::getInstance()->getLayerType(this)); } void Layer::setPresentationName(QString name) { m_presentationName = name; } QString Layer::getLayerPresentationName() const { if (m_presentationName != "") return m_presentationName; LayerFactory *factory = LayerFactory::getInstance(); QString layerName = factory->getLayerPresentationName (factory->getLayerType(this)); QString modelName; if (getModel()) modelName = getModel()->objectName(); QString text; if (modelName != "") { text = QString("%1: %2").arg(modelName).arg(layerName); } else { text = layerName; } return text; } void Layer::setObjectName(const QString &name) { QObject::setObjectName(name); emit layerNameChanged(); } PlayParameters * Layer::getPlayParameters() { // cerr << "Layer (" << this << ", " << objectName() << ")::getPlayParameters: model is "<< getModel() << endl; const Model *model = getModel(); if (model) { return PlayParameterRepository::getInstance()->getPlayParameters(model); } return 0; } void Layer::setLayerDormant(const View *v, bool dormant) { const void *vv = (const void *)v; QMutexLocker locker(&m_dormancyMutex); m_dormancy[vv] = dormant; } bool Layer::isLayerDormant(const View *v) const { const void *vv = (const void *)v; QMutexLocker locker(&m_dormancyMutex); if (m_dormancy.find(vv) == m_dormancy.end()) return false; return m_dormancy.find(vv)->second; } void Layer::showLayer(View *view, bool show) { setLayerDormant(view, !show); emit layerParametersChanged(); } bool Layer::getXScaleValue(const View *v, int x, float &value, QString &unit) const { if (!hasTimeXAxis()) return false; const Model *m = getModel(); if (!m) return false; value = float(v->getFrameForX(x)) / m->getSampleRate(); unit = "s"; return true; } bool Layer::getYScaleDifference(const View *v, int y0, int y1, float &diff, QString &unit) const { float v0, v1; if (!getYScaleValue(v, y0, v0, unit) || !getYScaleValue(v, y1, v1, unit)) { diff = 0.f; return false; } diff = fabsf(v1 - v0); return true; } int Layer::alignToReference(View *v, int frame) const { const Model *m = getModel(); SVDEBUG << "Layer::alignToReference(" << frame << "): model = " << m << ", alignment reference = " << (m ? m->getAlignmentReference() : 0) << endl; if (m && m->getAlignmentReference()) { return m->alignToReference(frame); } else { return v->alignToReference(frame); } } int Layer::alignFromReference(View *v, int frame) const { const Model *m = getModel(); SVDEBUG << "Layer::alignFromReference(" << frame << "): model = " << m << ", alignment reference = " << (m ? m->getAlignmentReference() : 0) << endl; if (m && m->getAlignmentReference()) { return m->alignFromReference(frame); } else { return v->alignFromReference(frame); } } bool Layer::clipboardHasDifferentAlignment(View *v, const Clipboard &clip) const { // Notes on pasting to an aligned layer: // // Each point may have a reference frame that may differ from the // point's given frame (in its source model). If it has no // reference frame, we have to assume the source model was not // aligned or was the reference model: when cutting or copying // points from a layer, we must always set their reference frame // correctly if we are aligned. // // When pasting: // - if point's reference and aligned frames differ: // - if this layer is aligned: // - if point's aligned frame matches this layer's aligned version // of point's reference frame: // - we can paste at reference frame or our frame // - else // - we can paste at reference frame, result of aligning reference // frame in our model, or literal source frame // - else // - we can paste at reference (our) frame, or literal source frame // - else // - if this layer is aligned: // - we can paste at reference (point's only available) frame, // or result of aligning reference frame in our model // - else // - we can only paste at reference frame // // Which of these alternatives are useful? // // Example: we paste between two tracks that are aligned to the // same reference, and the points are at 10s and 20s in the source // track, corresponding to 5s and 10s in the reference but 20s and // 30s in the target track. // // The obvious default is to paste at 20s and 30s; if we aren't // doing that, would it be better to paste at 5s and 10s or at 10s // and 20s? We probably don't ever want to do the former, do we? // We either want to be literal all the way through, or aligned // all the way through. for (Clipboard::PointList::const_iterator i = clip.getPoints().begin(); i != clip.getPoints().end(); ++i) { // In principle, we want to know whether the aligned version // of the reference frame in our layer is the same as the // source frame contained in the clipboard point. However, // because of rounding during alignment, that won't // necessarily be the case even if the clipboard point came // from our layer! What we need to check is whether, if we // aligned the clipboard point's frame back to the reference // using this layer's alignment, we would obtain the same // reference frame as that for the clipboard point. // What if the clipboard point has no reference frame? Then // we have to treat it as having its own frame as the // reference (i.e. having been copied from the reference // model). int sourceFrame = i->getFrame(); int referenceFrame = sourceFrame; if (i->haveReferenceFrame()) { referenceFrame = i->getReferenceFrame(); } int myMappedFrame = alignToReference(v, sourceFrame); // cerr << "sourceFrame = " << sourceFrame << ", referenceFrame = " << referenceFrame << " (have = " << i->haveReferenceFrame() << "), myMappedFrame = " << myMappedFrame << endl; if (myMappedFrame != referenceFrame) return true; } return false; } bool Layer::MeasureRect::operator<(const MeasureRect &mr) const { if (haveFrames) { if (startFrame == mr.startFrame) { if (endFrame != mr.endFrame) { return endFrame < mr.endFrame; } } else { return startFrame < mr.startFrame; } } else { if (pixrect.x() == mr.pixrect.x()) { if (pixrect.width() != mr.pixrect.width()) { return pixrect.width() < mr.pixrect.width(); } } else { return pixrect.x() < mr.pixrect.x(); } } // the two rects are equal in x and width if (pixrect.y() == mr.pixrect.y()) { return pixrect.height() < mr.pixrect.height(); } else { return pixrect.y() < mr.pixrect.y(); } } void Layer::MeasureRect::toXml(QTextStream &stream, QString indent) const { stream << indent; stream << QString("<measurement "); if (haveFrames) { stream << QString("startFrame=\"%1\" endFrame=\"%2\" ") .arg(startFrame).arg(endFrame); } else { stream << QString("startX=\"%1\" endX=\"%2\" ") .arg(pixrect.x()).arg(pixrect.x() << pixrect.width()); } stream << QString("startY=\"%1\" endY=\"%2\"/>\n") .arg(startY).arg(endY); } void Layer::addMeasurementRect(const QXmlAttributes &attributes) { MeasureRect rect; QString fs = attributes.value("startFrame"); int x0 = 0, x1 = 0; if (fs != "") { rect.startFrame = fs.toInt(); rect.endFrame = attributes.value("endFrame").toInt(); rect.haveFrames = true; } else { x0 = attributes.value("startX").toInt(); x1 = attributes.value("endX").toInt(); rect.haveFrames = false; } rect.startY = attributes.value("startY").toDouble(); rect.endY = attributes.value("endY").toDouble(); rect.pixrect = QRect(x0, 0, x1 - x0, 0); addMeasureRectToSet(rect); } QString Layer::AddMeasurementRectCommand::getName() const { return tr("Make Measurement"); } void Layer::AddMeasurementRectCommand::execute() { m_layer->addMeasureRectToSet(m_rect); } void Layer::AddMeasurementRectCommand::unexecute() { m_layer->deleteMeasureRectFromSet(m_rect); } QString Layer::DeleteMeasurementRectCommand::getName() const { return tr("Delete Measurement"); } void Layer::DeleteMeasurementRectCommand::execute() { m_layer->deleteMeasureRectFromSet(m_rect); } void Layer::DeleteMeasurementRectCommand::unexecute() { m_layer->addMeasureRectToSet(m_rect); } void Layer::measureStart(View *v, QMouseEvent *e) { setMeasureRectFromPixrect(v, m_draggingRect, QRect(e->x(), e->y(), 0, 0)); m_haveDraggingRect = true; } void Layer::measureDrag(View *v, QMouseEvent *e) { if (!m_haveDraggingRect) return; setMeasureRectFromPixrect(v, m_draggingRect, QRect(m_draggingRect.pixrect.x(), m_draggingRect.pixrect.y(), e->x() - m_draggingRect.pixrect.x(), e->y() - m_draggingRect.pixrect.y())); } void Layer::measureEnd(View *v, QMouseEvent *e) { if (!m_haveDraggingRect) return; measureDrag(v, e); if (!m_draggingRect.pixrect.isNull()) { CommandHistory::getInstance()->addCommand (new AddMeasurementRectCommand(this, m_draggingRect)); } m_haveDraggingRect = false; } void Layer::measureDoubleClick(View *, QMouseEvent *) { // nothing, in the base class } void Layer::deleteCurrentMeasureRect() { if (!m_haveCurrentMeasureRect) return; MeasureRectSet::const_iterator focusRectItr = findFocusedMeasureRect(m_currentMeasureRectPoint); if (focusRectItr == m_measureRects.end()) return; CommandHistory::getInstance()->addCommand (new DeleteMeasurementRectCommand(this, *focusRectItr)); } void Layer::paintMeasurementRects(View *v, QPainter &paint, bool showFocus, QPoint focusPoint) const { updateMeasurePixrects(v); MeasureRectSet::const_iterator focusRectItr = m_measureRects.end(); if (m_haveDraggingRect) { paintMeasurementRect(v, paint, m_draggingRect, true); } else if (showFocus) { focusRectItr = findFocusedMeasureRect(focusPoint); } m_haveCurrentMeasureRect = false; for (MeasureRectSet::const_iterator i = m_measureRects.begin(); i != m_measureRects.end(); ++i) { bool focused = (i == focusRectItr); paintMeasurementRect(v, paint, *i, focused); if (focused) { m_haveCurrentMeasureRect = true; m_currentMeasureRectPoint = focusPoint; } } } bool Layer::nearestMeasurementRectChanged(View *v, QPoint prev, QPoint now) const { updateMeasurePixrects(v); MeasureRectSet::const_iterator i0 = findFocusedMeasureRect(prev); MeasureRectSet::const_iterator i1 = findFocusedMeasureRect(now); return (i0 != i1); } void Layer::updateMeasurePixrects(View *v) const { int sf = v->getStartFrame(); int ef = v->getEndFrame(); for (MeasureRectSet::const_iterator i = m_measureRects.begin(); i != m_measureRects.end(); ++i) { // This logic depends on the fact that if one measure rect in // a layer has frame values, they all will. That is in fact // the case, because haveFrames is based on whether the layer // hasTimeXAxis() or not. Measure rect ordering in the rect // set wouldn't work correctly either, if haveFrames could // vary. if (i->haveFrames) { if (i->startFrame >= ef) break; if (i->endFrame <= sf) continue; } int x0 = i->pixrect.x(); int x1 = x0 + i->pixrect.width(); if (i->haveFrames) { if (i->startFrame >= v->getStartFrame()) { x0 = v->getXForFrame(i->startFrame); } if (i->endFrame <= int(v->getEndFrame())) { x1 = v->getXForFrame(i->endFrame); } } i->pixrect = QRect(x0, i->pixrect.y(), x1 - x0, i->pixrect.height()); updateMeasureRectYCoords(v, *i); } } void Layer::updateMeasureRectYCoords(View *v, const MeasureRect &r) const { int y0 = lrint(r.startY * v->height()); int y1 = lrint(r.endY * v->height()); r.pixrect = QRect(r.pixrect.x(), y0, r.pixrect.width(), y1 - y0); } void Layer::setMeasureRectYCoord(View *v, MeasureRect &r, bool start, int y) const { if (start) { r.startY = double(y) / double(v->height()); r.endY = r.startY; } else { r.endY = double(y) / double(v->height()); } } void Layer::setMeasureRectFromPixrect(View *v, MeasureRect &r, QRect pixrect) const { r.pixrect = pixrect; r.haveFrames = hasTimeXAxis(); if (r.haveFrames) { r.startFrame = v->getFrameForX(pixrect.x()); r.endFrame = v->getFrameForX(pixrect.x() + pixrect.width()); } setMeasureRectYCoord(v, r, true, pixrect.y()); setMeasureRectYCoord(v, r, false, pixrect.y() + pixrect.height()); } Layer::MeasureRectSet::const_iterator Layer::findFocusedMeasureRect(QPoint focusPoint) const { float frDist = 0; MeasureRectSet::const_iterator focusRectItr = m_measureRects.end(); for (MeasureRectSet::const_iterator i = m_measureRects.begin(); i != m_measureRects.end(); ++i) { if (!i->pixrect.adjusted(-2, -2, 2, 2).contains(focusPoint)) continue; int cx = i->pixrect.x() + i->pixrect.width()/2; int cy = i->pixrect.y() + i->pixrect.height()/2; int xd = focusPoint.x() - cx; int yd = focusPoint.y() - cy; float d = sqrt(float(xd * xd + yd * yd)); if (focusRectItr == m_measureRects.end() || d < frDist) { focusRectItr = i; frDist = d; } } return focusRectItr; } void Layer::paintMeasurementRect(View *v, QPainter &paint, const MeasureRect &r, bool focus) const { if (r.haveFrames) { int x0 = -1; int x1 = v->width() + 1; if (r.startFrame >= v->getStartFrame()) { x0 = v->getXForFrame(r.startFrame); } if (r.endFrame <= v->getEndFrame()) { x1 = v->getXForFrame(r.endFrame); } QRect pr = QRect(x0, r.pixrect.y(), x1 - x0, r.pixrect.height()); r.pixrect = pr; } v->drawMeasurementRect(paint, this, r.pixrect.normalized(), focus); } void Layer::toXml(QTextStream &stream, QString indent, QString extraAttributes) const { stream << indent; if (m_presentationName != "") { extraAttributes = QString("%1 presentationName=\"%2\"") .arg(extraAttributes).arg(encodeEntities(m_presentationName)); } stream << QString("<layer id=\"%2\" type=\"%1\" name=\"%3\" model=\"%4\" %5") .arg(encodeEntities(LayerFactory::getInstance()->getLayerTypeName (LayerFactory::getInstance()->getLayerType(this)))) .arg(getObjectExportId(this)) .arg(encodeEntities(objectName())) .arg(getObjectExportId(getModel())) .arg(extraAttributes); if (m_measureRects.empty()) { stream << QString("/>\n"); return; } stream << QString(">\n"); for (MeasureRectSet::const_iterator i = m_measureRects.begin(); i != m_measureRects.end(); ++i) { i->toXml(stream, indent + " "); } stream << QString("</layer>\n"); } void Layer::toBriefXml(QTextStream &stream, QString indent, QString extraAttributes) const { stream << indent; if (m_presentationName != "") { extraAttributes = QString("%1 presentationName=\"%2\"") .arg(extraAttributes).arg(encodeEntities(m_presentationName)); } stream << QString("<layer id=\"%2\" type=\"%1\" name=\"%3\" model=\"%4\" %5/>\n") .arg(encodeEntities(LayerFactory::getInstance()->getLayerTypeName (LayerFactory::getInstance()->getLayerType(this)))) .arg(getObjectExportId(this)) .arg(encodeEntities(objectName())) .arg(getObjectExportId(getModel())) .arg(extraAttributes); }