Mercurial > hg > svgui
view layer/Layer.cpp @ 312:6de6f78b13a1
* Make it possible to drop audio files, layer files, session files and images
onto SV panes.
Need to do a bit more work on where we expect the dropped file to go,
particularly in the case of audio files -- at the moment they're always
opened in new panes, but it may be better to by default replace whatever is
in the target pane.
author | Chris Cannam |
---|---|
date | Wed, 10 Oct 2007 15:18:02 +0000 |
parents | 86a112b5b319 |
children | c0b9eec70639 |
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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 "base/CommandHistory.h" #include <iostream> #include <QMutexLocker> #include <QMouseEvent> #include "LayerFactory.h" #include "base/PlayParameterRepository.h" #include <cmath> Layer::Layer() : m_haveDraggingRect(false), m_haveCurrentMeasureRect(false) { } Layer::~Layer() { // std::cerr << "Layer::~Layer(" << this << ")" << std::endl; } QString Layer::getPropertyContainerIconName() const { return LayerFactory::getInstance()->getLayerIconName (LayerFactory::getInstance()->getLayerType(this)); } QString Layer::getLayerPresentationName() const { // QString layerName = objectName(); 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() { // std::cerr << "Layer (" << this << ", " << objectName().toStdString() << ")::getPlayParameters: model is "<< getModel() << std::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; } 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(); } } QString Layer::MeasureRect::toXmlString(QString indent) const { QString s; s += indent; s += QString("<measurement "); if (haveFrames) { s += QString("startFrame=\"%1\" endFrame=\"%2\" ") .arg(startFrame).arg(endFrame); } else { s += QString("startX=\"%1\" endX=\"%2\" ") .arg(pixrect.x()).arg(pixrect.x() + pixrect.width()); } s += QString("startY=\"%1\" endY=\"%2\"/>\n") .arg(startY).arg(endY); return s; } void Layer::addMeasurementRect(const QXmlAttributes &attributes) { MeasureRect rect; QString fs = attributes.value("startFrame"); int x0 = 0, x1 = 0; if (fs != "") { rect.startFrame = fs.toLong(); rect.endFrame = attributes.value("endFrame").toLong(); 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 *v, QMouseEvent *e) { // 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 { long sf = v->getStartFrame(); long 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 <= long(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(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 <= long(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); } QString Layer::toXmlString(QString indent, QString extraAttributes) const { QString s; s += indent; s += 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()) { s += QString("/>\n"); return s; } s += QString(">\n"); for (MeasureRectSet::const_iterator i = m_measureRects.begin(); i != m_measureRects.end(); ++i) { s += i->toXmlString(indent + " "); } s += QString("</layer>\n"); return s; } QString Layer::toBriefXmlString(QString indent, QString extraAttributes) const { QString s; s += indent; s += 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); return s; }