Mercurial > hg > svgui
view layer/TimeRulerLayer.cpp @ 42:1bdf285c4eac
* Add "Export Audio File" option
* Make note layer align in frequency with any spectrogram layer on the same
view (if it's set to frequency mode)
* Start to implement mouse editing for ranges of points by dragging the
selection
* First scrappy attempt at a vertical scale for time value layer
author | Chris Cannam |
---|---|
date | Mon, 27 Feb 2006 17:34:41 +0000 |
parents | ea6fe8cfcdd5 |
children | ad214997dddb |
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/* -*- c-basic-offset: 4 -*- vi:set ts=8 sts=4 sw=4: */ /* A waveform viewer and audio annotation editor. Chris Cannam, Queen Mary University of London, 2005-2006 This is experimental software. Not for distribution. */ #include "TimeRulerLayer.h" #include "base/Model.h" #include "base/RealTime.h" #include "base/View.h" #include <QPainter> #include <iostream> using std::cerr; using std::endl; TimeRulerLayer::TimeRulerLayer(View *w) : Layer(w), m_model(0), m_colour(Qt::black), m_labelHeight(LabelTop) { m_view->addLayer(this); } void TimeRulerLayer::setModel(Model *model) { if (m_model == model) return; m_model = model; emit modelReplaced(); } void TimeRulerLayer::setBaseColour(QColor colour) { if (m_colour == colour) return; m_colour = colour; emit layerParametersChanged(); } Layer::PropertyList TimeRulerLayer::getProperties() const { PropertyList list; list.push_back(tr("Colour")); return list; } Layer::PropertyType TimeRulerLayer::getPropertyType(const PropertyName &name) const { return ValueProperty; } int TimeRulerLayer::getPropertyRangeAndValue(const PropertyName &name, int *min, int *max) const { int deft = 0; if (name == tr("Colour")) { if (min) *min = 0; if (max) *max = 5; if (m_colour == Qt::black) deft = 0; else if (m_colour == Qt::darkRed) deft = 1; else if (m_colour == Qt::darkBlue) deft = 2; else if (m_colour == Qt::darkGreen) deft = 3; else if (m_colour == QColor(200, 50, 255)) deft = 4; else if (m_colour == QColor(255, 150, 50)) deft = 5; } else { deft = Layer::getPropertyRangeAndValue(name, min, max); } return deft; } QString TimeRulerLayer::getPropertyValueLabel(const PropertyName &name, int value) const { if (name == tr("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 TimeRulerLayer::setProperty(const PropertyName &name, int value) { if (name == tr("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; } } } void TimeRulerLayer::paint(QPainter &paint, QRect rect) const { // std::cerr << "TimeRulerLayer::paint (" << rect.x() << "," << rect.y() // << ") [" << rect.width() << "x" << rect.height() << "]" << std::endl; if (!m_model || !m_model->isOK()) return; int sampleRate = m_model->getSampleRate(); if (!sampleRate) return; long startFrame = m_view->getStartFrame(); long endFrame = m_view->getEndFrame(); int zoomLevel = m_view->getZoomLevel(); long rectStart = startFrame + (rect.x() - 100) * zoomLevel; long rectEnd = startFrame + (rect.x() + rect.width() + 100) * zoomLevel; if (rectStart < startFrame) rectStart = startFrame; if (rectEnd > endFrame) rectEnd = endFrame; // std::cerr << "TimeRulerLayer::paint: calling paint.save()" << std::endl; paint.save(); //!!! paint.setClipRect(m_view->rect()); int minPixelSpacing = 50; RealTime rtStart = RealTime::frame2RealTime(startFrame, sampleRate); RealTime rtEnd = RealTime::frame2RealTime(endFrame, sampleRate); // cerr << "startFrame " << startFrame << ", endFrame " << m_view->getEndFrame() << ", rtStart " << rtStart << ", rtEnd " << rtEnd << endl; int count = m_view->width() / minPixelSpacing; if (count < 1) count = 1; RealTime rtGap = (rtEnd - rtStart) / count; // cerr << "rtGap is " << rtGap << endl; int incms; bool quarter = false; if (rtGap.sec > 0) { incms = 1000; int s = rtGap.sec; if (s > 0) { incms *= 5; s /= 5; } if (s > 0) { incms *= 2; s /= 2; } if (s > 0) { incms *= 6; s /= 6; quarter = true; } if (s > 0) { incms *= 5; s /= 5; quarter = false; } if (s > 0) { incms *= 2; s /= 2; } if (s > 0) { incms *= 6; s /= 6; quarter = true; } while (s > 0) { incms *= 10; s /= 10; quarter = false; } } else { incms = 1; int ms = rtGap.msec(); if (ms > 0) { incms *= 10; ms /= 10; } if (ms > 0) { incms *= 10; ms /= 10; } if (ms > 0) { incms *= 5; ms /= 5; } if (ms > 0) { incms *= 2; ms /= 2; } } // cerr << "incms is " << incms << endl; RealTime rt = RealTime::frame2RealTime(rectStart, sampleRate); long ms = rt.sec * 1000 + rt.msec(); ms = (ms / incms) * incms - incms; RealTime incRt = RealTime::fromMilliseconds(incms); long incFrame = RealTime::realTime2Frame(incRt, sampleRate); int incX = incFrame / zoomLevel; int ticks = 10; if (incX < minPixelSpacing * 2) { ticks = quarter ? 4 : 5; } QRect oldClipRect = rect; QRect newClipRect(oldClipRect.x() - 25, oldClipRect.y(), oldClipRect.width() + 50, oldClipRect.height()); paint.setClipRect(newClipRect); QColor greyColour(m_colour); if (m_colour == Qt::black) { greyColour = QColor(200,200,200); } else { greyColour = m_colour.light(150); } while (1) { rt = RealTime::fromMilliseconds(ms); ms += incms; long frame = RealTime::realTime2Frame(rt, sampleRate); if (frame >= rectEnd) break; int x = (frame - startFrame) / zoomLevel; if (x < rect.x() || x >= rect.x() + rect.width()) continue; paint.setPen(greyColour); paint.drawLine(x, 0, x, m_view->height()); paint.setPen(m_colour); paint.drawLine(x, 0, x, 5); paint.drawLine(x, m_view->height() - 6, x, m_view->height() - 1); QString text(QString::fromStdString(rt.toText())); int y; QFontMetrics metrics = paint.fontMetrics(); switch (m_labelHeight) { default: case LabelTop: y = 6 + metrics.ascent(); break; case LabelMiddle: y = m_view->height() / 2 - metrics.height() / 2 + metrics.ascent(); break; case LabelBottom: y = m_view->height() - metrics.height() + metrics.ascent() - 6; } int tw = metrics.width(text); paint.setPen(m_view->palette().background().color()); //!!! simple drawing function for this please //!!! and need getContrastingColour() in widget, or use the //palette properly -- get the base class able to draw text //using the proper colour (or this technique) automatically for (int dx = -1; dx <= 1; ++dx) { for (int dy = -1; dy <= 1; ++dy) { if ((dx && dy) || !(dx || dy)) continue; paint.drawText(x + 2 - tw / 2 + dx, y + dy, text); } } paint.setPen(m_colour); paint.drawText(x + 2 - tw / 2, y, text); paint.setPen(greyColour); for (int i = 1; i < ticks; ++i) { rt = rt + (incRt / ticks); frame = RealTime::realTime2Frame(rt, sampleRate); x = (frame - startFrame) / zoomLevel; int sz = 5; if (ticks == 10) { if ((i % 2) == 1) { if (i == 5) { paint.drawLine(x, 0, x, m_view->height()); } else sz = 3; } else { sz = 7; } } paint.drawLine(x, 0, x, sz); paint.drawLine(x, m_view->height() - sz - 1, x, m_view->height() - 1); } } paint.restore(); } QString TimeRulerLayer::toXmlString(QString indent, QString extraAttributes) const { return Layer::toXmlString(indent, extraAttributes + QString(" colour=\"%1\"").arg(encodeColour(m_colour))); } void TimeRulerLayer::setProperties(const QXmlAttributes &attributes) { QString colourSpec = attributes.value("colour"); if (colourSpec != "") { QColor colour(colourSpec); if (colour.isValid()) { setBaseColour(QColor(colourSpec)); } } } #ifdef INCLUDE_MOCFILES #include "TimeRulerLayer.moc.cpp" #endif