Mercurial > hg > svgui
view layer/TextLayer.cpp @ 269:7b58c5e91f20
* save/reload measurements in session
author | Chris Cannam |
---|---|
date | Tue, 26 Jun 2007 12:27:47 +0000 |
parents | e175ade2d6b0 |
children | cd2492c5fe45 |
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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. 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 "TextLayer.h" #include "data/model/Model.h" #include "base/RealTime.h" #include "base/Profiler.h" #include "view/View.h" #include "data/model/TextModel.h" #include <QPainter> #include <QMouseEvent> #include <QInputDialog> #include <iostream> #include <cmath> TextLayer::TextLayer() : Layer(), m_model(0), m_editing(false), m_originalPoint(0, 0.0, tr("Empty Label")), m_editingPoint(0, 0.0, tr("Empty Label")), m_editingCommand(0), m_colour(255, 150, 50) // orange { } void TextLayer::setModel(TextModel *model) { if (m_model == model) return; m_model = model; connect(m_model, SIGNAL(modelChanged()), this, SIGNAL(modelChanged())); connect(m_model, SIGNAL(modelChanged(size_t, size_t)), this, SIGNAL(modelChanged(size_t, size_t))); connect(m_model, SIGNAL(completionChanged()), this, SIGNAL(modelCompletionChanged())); // std::cerr << "TextLayer::setModel(" << model << ")" << std::endl; emit modelReplaced(); } Layer::PropertyList TextLayer::getProperties() const { PropertyList list; list.push_back("Colour"); return list; } QString TextLayer::getPropertyLabel(const PropertyName &name) const { if (name == "Colour") return tr("Colour"); return ""; } Layer::PropertyType TextLayer::getPropertyType(const PropertyName &) const { return ValueProperty; } int TextLayer::getPropertyRangeAndValue(const PropertyName &name, int *min, int *max, int *deflt) const { //!!! factor this colour handling stuff out into a colour manager class int val = 0; if (name == "Colour") { if (min) *min = 0; if (max) *max = 5; if (deflt) *deflt = 0; if (m_colour == Qt::black) val = 0; else if (m_colour == Qt::darkRed) val = 1; else if (m_colour == Qt::darkBlue) val = 2; else if (m_colour == Qt::darkGreen) val = 3; else if (m_colour == QColor(200, 50, 255)) val = 4; else if (m_colour == QColor(255, 150, 50)) val = 5; } else { val = Layer::getPropertyRangeAndValue(name, min, max, deflt); } return val; } QString TextLayer::getPropertyValueLabel(const PropertyName &name, int value) const { if (name == "Colour") { switch (value) { default: case 0: return tr("Black"); case 1: return tr("Red"); case 2: return tr("Blue"); case 3: return tr("Green"); case 4: return tr("Purple"); case 5: return tr("Orange"); } } return tr("<unknown>"); } void TextLayer::setProperty(const PropertyName &name, int value) { if (name == "Colour") { switch (value) { default: case 0: setBaseColour(Qt::black); break; case 1: setBaseColour(Qt::darkRed); break; case 2: setBaseColour(Qt::darkBlue); break; case 3: setBaseColour(Qt::darkGreen); break; case 4: setBaseColour(QColor(200, 50, 255)); break; case 5: setBaseColour(QColor(255, 150, 50)); break; } } } bool TextLayer::getValueExtents(float &, float &, bool &, QString &) const { return false; } void TextLayer::setBaseColour(QColor colour) { if (m_colour == colour) return; m_colour = colour; emit layerParametersChanged(); } bool TextLayer::isLayerScrollable(const View *v) const { QPoint discard; return !v->shouldIlluminateLocalFeatures(this, discard); } TextModel::PointList TextLayer::getLocalPoints(View *v, int x, int y) const { if (!m_model) return TextModel::PointList(); long frame0 = v->getFrameForX(-150); long frame1 = v->getFrameForX(v->width() + 150); TextModel::PointList points(m_model->getPoints(frame0, frame1)); TextModel::PointList rv; QFontMetrics metrics = QPainter().fontMetrics(); for (TextModel::PointList::iterator i = points.begin(); i != points.end(); ++i) { const TextModel::Point &p(*i); int px = v->getXForFrame(p.frame); int py = getYForHeight(v, p.height); QString label = p.label; if (label == "") { label = tr("<no text>"); } QRect rect = metrics.boundingRect (QRect(0, 0, 150, 200), Qt::AlignLeft | Qt::AlignTop | Qt::TextWordWrap, label); if (py + rect.height() > v->height()) { if (rect.height() > v->height()) py = 0; else py = v->height() - rect.height() - 1; } if (x >= px && x < px + rect.width() && y >= py && y < py + rect.height()) { rv.insert(p); } } return rv; } QString TextLayer::getFeatureDescription(View *v, QPoint &pos) const { int x = pos.x(); if (!m_model || !m_model->getSampleRate()) return ""; TextModel::PointList points = getLocalPoints(v, x, pos.y()); if (points.empty()) { if (!m_model->isReady()) { return tr("In progress"); } else { return ""; } } long useFrame = points.begin()->frame; RealTime rt = RealTime::frame2RealTime(useFrame, m_model->getSampleRate()); QString text; if (points.begin()->label == "") { text = QString(tr("Time:\t%1\nHeight:\t%2\nLabel:\t%3")) .arg(rt.toText(true).c_str()) .arg(points.begin()->height) .arg(points.begin()->label); } pos = QPoint(v->getXForFrame(useFrame), getYForHeight(v, points.begin()->height)); return text; } //!!! too much overlap with TimeValueLayer/TimeInstantLayer bool TextLayer::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(); TextModel::PointList points; if (snap == SnapNeighbouring) { points = getLocalPoints(v, v->getXForFrame(frame), -1); if (points.empty()) return false; frame = points.begin()->frame; return true; } points = m_model->getPoints(frame, frame); int snapped = frame; bool found = false; for (TextModel::PointList::const_iterator i = points.begin(); i != points.end(); ++i) { if (snap == SnapRight) { if (i->frame > frame) { snapped = i->frame; 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 TextModel::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; } } } frame = snapped; return found; } int TextLayer::getYForHeight(View *v, float height) const { int h = v->height(); return h - int(height * h); } float TextLayer::getHeightForY(View *v, int y) const { int h = v->height(); return float(h - y) / h; } void TextLayer::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("TextLayer::paint", true); int x0 = rect.left(), x1 = rect.right(); long frame0 = v->getFrameForX(x0); long frame1 = v->getFrameForX(x1); TextModel::PointList points(m_model->getPoints(frame0, frame1)); if (points.empty()) return; QColor brushColour(m_colour); int h, s, val; brushColour.getHsv(&h, &s, &val); brushColour.setHsv(h, s, 255, 100); QColor penColour; if (v->hasLightBackground()) { penColour = Qt::black; } else { penColour = Qt::white; } // std::cerr << "TextLayer::paint: resolution is " // << m_model->getResolution() << " frames" << std::endl; QPoint localPos; long illuminateFrame = -1; if (v->shouldIlluminateLocalFeatures(this, localPos)) { TextModel::PointList localPoints = getLocalPoints(v, localPos.x(), localPos.y()); if (!localPoints.empty()) illuminateFrame = localPoints.begin()->frame; } int boxMaxWidth = 150; int boxMaxHeight = 200; paint.save(); paint.setClipRect(rect.x(), 0, rect.width() + boxMaxWidth, v->height()); for (TextModel::PointList::const_iterator i = points.begin(); i != points.end(); ++i) { const TextModel::Point &p(*i); int x = v->getXForFrame(p.frame); int y = getYForHeight(v, p.height); if (illuminateFrame == p.frame) { paint.setBrush(penColour); if (v->hasLightBackground()) { paint.setPen(Qt::white); } else { paint.setPen(Qt::black); } } else { paint.setPen(penColour); paint.setBrush(brushColour); } QString label = p.label; if (label == "") { label = tr("<no text>"); } QRect boxRect = paint.fontMetrics().boundingRect (QRect(0, 0, boxMaxWidth, boxMaxHeight), Qt::AlignLeft | Qt::AlignTop | Qt::TextWordWrap, label); QRect textRect = QRect(3, 2, boxRect.width(), boxRect.height()); boxRect = QRect(0, 0, boxRect.width() + 6, boxRect.height() + 2); if (y + boxRect.height() > v->height()) { if (boxRect.height() > v->height()) y = 0; else y = v->height() - boxRect.height() - 1; } boxRect = QRect(x, y, boxRect.width(), boxRect.height()); textRect = QRect(x + 3, y + 2, textRect.width(), textRect.height()); // boxRect = QRect(x, y, boxRect.width(), boxRect.height()); // textRect = QRect(x + 3, y + 2, textRect.width(), textRect.height()); paint.setRenderHint(QPainter::Antialiasing, false); paint.drawRect(boxRect); paint.setRenderHint(QPainter::Antialiasing, true); paint.drawText(textRect, Qt::AlignLeft | Qt::AlignTop | Qt::TextWordWrap, label); /// if (p.label != "") { /// paint.drawText(x + 5, y - paint.fontMetrics().height() + paint.fontMetrics().ascent(), p.label); /// } } paint.restore(); // looks like save/restore doesn't deal with this: paint.setRenderHint(QPainter::Antialiasing, false); } void TextLayer::drawStart(View *v, QMouseEvent *e) { // std::cerr << "TextLayer::drawStart(" << e->x() << "," << e->y() << ")" << std::endl; if (!m_model) { std::cerr << "TextLayer::drawStart: no model" << std::endl; return; } long frame = v->getFrameForX(e->x()); if (frame < 0) frame = 0; frame = frame / m_model->getResolution() * m_model->getResolution(); float height = getHeightForY(v, e->y()); m_editingPoint = TextModel::Point(frame, height, ""); m_originalPoint = m_editingPoint; if (m_editingCommand) m_editingCommand->finish(); m_editingCommand = new TextModel::EditCommand(m_model, "Add Label"); m_editingCommand->addPoint(m_editingPoint); m_editing = true; } void TextLayer::drawDrag(View *v, QMouseEvent *e) { // std::cerr << "TextLayer::drawDrag(" << e->x() << "," << e->y() << ")" << std::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 height = getHeightForY(v, e->y()); m_editingCommand->deletePoint(m_editingPoint); m_editingPoint.frame = frame; m_editingPoint.height = height; m_editingCommand->addPoint(m_editingPoint); } void TextLayer::drawEnd(View *v, QMouseEvent *) { // std::cerr << "TextLayer::drawEnd(" << e->x() << "," << e->y() << ")" << std::endl; if (!m_model || !m_editing) return; bool ok = false; QString label = QInputDialog::getText(v, tr("Enter label"), tr("Please enter a new label:"), QLineEdit::Normal, "", &ok); if (ok) { TextModel::RelabelCommand *command = new TextModel::RelabelCommand(m_model, m_editingPoint, label); m_editingCommand->addCommand(command); } m_editingCommand->finish(); m_editingCommand = 0; m_editing = false; } void TextLayer::editStart(View *v, QMouseEvent *e) { // std::cerr << "TextLayer::editStart(" << e->x() << "," << e->y() << ")" << std::endl; if (!m_model) return; TextModel::PointList points = getLocalPoints(v, e->x(), e->y()); if (points.empty()) return; m_editOrigin = e->pos(); m_editingPoint = *points.begin(); m_originalPoint = m_editingPoint; if (m_editingCommand) { m_editingCommand->finish(); m_editingCommand = 0; } m_editing = true; } void TextLayer::editDrag(View *v, QMouseEvent *e) { if (!m_model || !m_editing) return; long frameDiff = v->getFrameForX(e->x()) - v->getFrameForX(m_editOrigin.x()); float heightDiff = getHeightForY(v, e->y()) - getHeightForY(v, m_editOrigin.y()); long frame = m_originalPoint.frame + frameDiff; float height = m_originalPoint.height + heightDiff; // long frame = v->getFrameForX(e->x()); if (frame < 0) frame = 0; frame = (frame / m_model->getResolution()) * m_model->getResolution(); // float height = getHeightForY(v, e->y()); if (!m_editingCommand) { m_editingCommand = new TextModel::EditCommand(m_model, tr("Drag Label")); } m_editingCommand->deletePoint(m_editingPoint); m_editingPoint.frame = frame; m_editingPoint.height = height; m_editingCommand->addPoint(m_editingPoint); } void TextLayer::editEnd(View *, QMouseEvent *) { // std::cerr << "TextLayer::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.height != m_originalPoint.height) { newName = tr("Move Label"); } else { newName = tr("Move Label Horizontally"); } } else { newName = tr("Move Label Vertically"); } m_editingCommand->setName(newName); m_editingCommand->finish(); } m_editingCommand = 0; m_editing = false; } bool TextLayer::editOpen(View *v, QMouseEvent *e) { if (!m_model) return false; TextModel::PointList points = getLocalPoints(v, e->x(), e->y()); if (points.empty()) return false; QString label = points.begin()->label; bool ok = false; label = QInputDialog::getText(v, tr("Enter label"), tr("Please enter a new label:"), QLineEdit::Normal, label, &ok); if (ok && label != points.begin()->label) { TextModel::RelabelCommand *command = new TextModel::RelabelCommand(m_model, *points.begin(), label); CommandHistory::getInstance()->addCommand(command); } return true; } void TextLayer::moveSelection(Selection s, size_t newStartFrame) { if (!m_model) return; TextModel::EditCommand *command = new TextModel::EditCommand(m_model, tr("Drag Selection")); TextModel::PointList points = m_model->getPoints(s.getStartFrame(), s.getEndFrame()); for (TextModel::PointList::iterator i = points.begin(); i != points.end(); ++i) { if (s.contains(i->frame)) { TextModel::Point newPoint(*i); newPoint.frame = i->frame + newStartFrame - s.getStartFrame(); command->deletePoint(*i); command->addPoint(newPoint); } } command->finish(); } void TextLayer::resizeSelection(Selection s, Selection newSize) { if (!m_model) return; TextModel::EditCommand *command = new TextModel::EditCommand(m_model, tr("Resize Selection")); TextModel::PointList points = m_model->getPoints(s.getStartFrame(), s.getEndFrame()); double ratio = double(newSize.getEndFrame() - newSize.getStartFrame()) / double(s.getEndFrame() - s.getStartFrame()); for (TextModel::PointList::iterator i = points.begin(); i != points.end(); ++i) { if (s.contains(i->frame)) { double target = i->frame; target = newSize.getStartFrame() + double(target - s.getStartFrame()) * ratio; TextModel::Point newPoint(*i); newPoint.frame = lrint(target); command->deletePoint(*i); command->addPoint(newPoint); } } command->finish(); } void TextLayer::deleteSelection(Selection s) { if (!m_model) return; TextModel::EditCommand *command = new TextModel::EditCommand(m_model, tr("Delete Selection")); TextModel::PointList points = m_model->getPoints(s.getStartFrame(), s.getEndFrame()); for (TextModel::PointList::iterator i = points.begin(); i != points.end(); ++i) { if (s.contains(i->frame)) command->deletePoint(*i); } command->finish(); } void TextLayer::copy(Selection s, Clipboard &to) { if (!m_model) return; TextModel::PointList points = m_model->getPoints(s.getStartFrame(), s.getEndFrame()); for (TextModel::PointList::iterator i = points.begin(); i != points.end(); ++i) { if (s.contains(i->frame)) { Clipboard::Point point(i->frame, i->height, i->label); to.addPoint(point); } } } bool TextLayer::paste(const Clipboard &from, int frameOffset, bool /* interactive */) { if (!m_model) return false; const Clipboard::PointList &points = from.getPoints(); TextModel::EditCommand *command = new TextModel::EditCommand(m_model, tr("Paste")); float valueMin = 0.0, valueMax = 1.0; for (Clipboard::PointList::const_iterator i = points.begin(); i != points.end(); ++i) { if (i->haveValue()) { if (i->getValue() < valueMin) valueMin = i->getValue(); if (i->getValue() > valueMax) valueMax = i->getValue(); } } if (valueMax < valueMin + 1.0) valueMax = valueMin + 1.0; for (Clipboard::PointList::const_iterator i = points.begin(); i != points.end(); ++i) { if (!i->haveFrame()) continue; size_t frame = 0; if (frameOffset > 0 || -frameOffset < i->getFrame()) { frame = i->getFrame() + frameOffset; } TextModel::Point newPoint(frame); if (i->haveValue()) { newPoint.height = (i->getValue() - valueMin) / (valueMax - valueMin); } else { newPoint.height = 0.5; } if (i->haveLabel()) { newPoint.label = i->getLabel(); } else if (i->haveValue()) { newPoint.label = QString("%1").arg(i->getValue()); } else { newPoint.label = tr("New Point"); } command->addPoint(newPoint); } command->finish(); return true; } QString TextLayer::toXmlString(QString indent, QString extraAttributes) const { return Layer::toXmlString(indent, extraAttributes + QString(" colour=\"%1\"") .arg(encodeColour(m_colour))); } void TextLayer::setProperties(const QXmlAttributes &attributes) { QString colourSpec = attributes.value("colour"); if (colourSpec != "") { QColor colour(colourSpec); if (colour.isValid()) { setBaseColour(QColor(colourSpec)); } } }