Chris@58: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
Chris@0:
Chris@0: /*
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@182: This file copyright 2006 Chris Cannam and QMUL.
Chris@0:
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@0: */
Chris@0:
Chris@0: #include "WaveformLayer.h"
Chris@0:
Chris@0: #include "base/AudioLevel.h"
Chris@128: #include "view/View.h"
Chris@0: #include "base/Profiler.h"
Chris@167: #include "base/RangeMapper.h"
Chris@1147: #include "base/Strings.h"
Chris@1078:
Chris@376: #include "ColourDatabase.h"
Chris@1078: #include "PaintAssistant.h"
Chris@0:
Chris@0: #include <QPainter>
Chris@0: #include <QPixmap>
Chris@316: #include <QTextStream>
Chris@0:
Chris@0: #include <iostream>
Chris@0: #include <cmath>
Chris@0:
Chris@4: //#define DEBUG_WAVEFORM_PAINT 1
Chris@4:
Chris@682:
Chris@682:
Chris@0:
Chris@44: WaveformLayer::WaveformLayer() :
Chris@287: SingleColourLayer(),
Chris@0: m_model(0),
Chris@0: m_gain(1.0f),
Chris@67: m_autoNormalize(false),
Chris@0: m_showMeans(true),
Chris@0: m_greyscale(true),
Chris@0: m_channelMode(SeparateChannels),
Chris@0: m_channel(-1),
Chris@0: m_scale(LinearScale),
Chris@709: m_middleLineHeight(0.5),
Chris@0: m_aggressive(false),
Chris@0: m_cache(0),
Chris@853: m_cacheValid(false),
Chris@853: m_cacheZoomLevel(0)
Chris@0: {
Chris@44:
Chris@0: }
Chris@0:
Chris@0: WaveformLayer::~WaveformLayer()
Chris@0: {
Chris@0: delete m_cache;
Chris@0: }
Chris@0:
Chris@0: void
Chris@0: WaveformLayer::setModel(const RangeSummarisableTimeValueModel *model)
Chris@0: {
Chris@69: bool channelsChanged = false;
Chris@69: if (m_channel == -1) {
Chris@69: if (!m_model) {
Chris@69: if (model) {
Chris@69: channelsChanged = true;
Chris@69: }
Chris@69: } else {
Chris@69: if (model &&
Chris@69: m_model->getChannelCount() != model->getChannelCount()) {
Chris@69: channelsChanged = true;
Chris@69: }
Chris@69: }
Chris@69: }
Chris@69:
Chris@0: m_model = model;
Chris@0: m_cacheValid = false;
Chris@0: if (!m_model || !m_model->isOK()) return;
Chris@0:
Chris@320: connectSignals(m_model);
Chris@301:
Chris@0: emit modelReplaced();
Chris@69:
Chris@69: if (channelsChanged) emit layerParametersChanged();
Chris@0: }
Chris@0:
Chris@0: Layer::PropertyList
Chris@0: WaveformLayer::getProperties() const
Chris@0: {
Chris@287: PropertyList list = SingleColourLayer::getProperties();
Chris@87: list.push_back("Scale");
Chris@87: list.push_back("Gain");
Chris@87: list.push_back("Normalize Visible Area");
Chris@68:
Chris@68: if (m_model && m_model->getChannelCount() > 1 && m_channel == -1) {
Chris@87: list.push_back("Channels");
Chris@68: }
Chris@68:
Chris@0: return list;
Chris@0: }
Chris@0:
Chris@87: QString
Chris@87: WaveformLayer::getPropertyLabel(const PropertyName &name) const
Chris@87: {
Chris@87: if (name == "Scale") return tr("Scale");
Chris@87: if (name == "Gain") return tr("Gain");
Chris@87: if (name == "Normalize Visible Area") return tr("Normalize Visible Area");
Chris@87: if (name == "Channels") return tr("Channels");
Chris@287: return SingleColourLayer::getPropertyLabel(name);
Chris@87: }
Chris@87:
Chris@335: QString
Chris@335: WaveformLayer::getPropertyIconName(const PropertyName &name) const
Chris@335: {
Chris@335: if (name == "Normalize Visible Area") return "normalise";
Chris@335: return "";
Chris@335: }
Chris@335:
Chris@0: Layer::PropertyType
Chris@0: WaveformLayer::getPropertyType(const PropertyName &name) const
Chris@0: {
Chris@87: if (name == "Gain") return RangeProperty;
Chris@87: if (name == "Normalize Visible Area") return ToggleProperty;
Chris@87: if (name == "Channels") return ValueProperty;
Chris@87: if (name == "Scale") return ValueProperty;
Chris@287: return SingleColourLayer::getPropertyType(name);
Chris@0: }
Chris@0:
Chris@0: QString
Chris@0: WaveformLayer::getPropertyGroupName(const PropertyName &name) const
Chris@0: {
Chris@87: if (name == "Gain" ||
Chris@87: name == "Normalize Visible Area" ||
Chris@87: name == "Scale") return tr("Scale");
Chris@0: return QString();
Chris@0: }
Chris@0:
Chris@0: int
Chris@0: WaveformLayer::getPropertyRangeAndValue(const PropertyName &name,
Chris@216: int *min, int *max, int *deflt) const
Chris@0: {
Chris@216: int val = 0;
Chris@0:
Chris@216: int garbage0, garbage1, garbage2;
Chris@56: if (!min) min = &garbage0;
Chris@56: if (!max) max = &garbage1;
Chris@216: if (!deflt) deflt = &garbage2;
Chris@10:
Chris@87: if (name == "Gain") {
Chris@0:
Chris@0: *min = -50;
Chris@0: *max = 50;
Chris@216: *deflt = 0;
Chris@0:
Chris@908: val = int(lrint(log10(m_gain) * 20.0));
Chris@216: if (val < *min) val = *min;
Chris@216: if (val > *max) val = *max;
Chris@0:
Chris@87: } else if (name == "Normalize Visible Area") {
Chris@67:
Chris@216: val = (m_autoNormalize ? 1 : 0);
Chris@216: *deflt = 0;
Chris@67:
Chris@87: } else if (name == "Channels") {
Chris@0:
Chris@67: *min = 0;
Chris@67: *max = 2;
Chris@216: *deflt = 0;
Chris@216: if (m_channelMode == MixChannels) val = 1;
Chris@216: else if (m_channelMode == MergeChannels) val = 2;
Chris@216: else val = 0;
Chris@0:
Chris@87: } else if (name == "Scale") {
Chris@0:
Chris@0: *min = 0;
Chris@0: *max = 2;
Chris@216: *deflt = 0;
Chris@0:
Chris@216: val = (int)m_scale;
Chris@0:
Chris@0: } else {
Chris@287: val = SingleColourLayer::getPropertyRangeAndValue(name, min, max, deflt);
Chris@0: }
Chris@0:
Chris@216: return val;
Chris@0: }
Chris@0:
Chris@0: QString
Chris@0: WaveformLayer::getPropertyValueLabel(const PropertyName &name,
Chris@0: int value) const
Chris@0: {
Chris@87: if (name == "Scale") {
Chris@0: switch (value) {
Chris@0: default:
Chris@0: case 0: return tr("Linear");
Chris@0: case 1: return tr("Meter");
Chris@0: case 2: return tr("dB");
Chris@0: }
Chris@0: }
Chris@87: if (name == "Channels") {
Chris@67: switch (value) {
Chris@67: default:
Chris@67: case 0: return tr("Separate");
Chris@67: case 1: return tr("Mean");
Chris@67: case 2: return tr("Butterfly");
Chris@67: }
Chris@67: }
Chris@287: return SingleColourLayer::getPropertyValueLabel(name, value);
Chris@0: }
Chris@0:
Chris@167: RangeMapper *
Chris@167: WaveformLayer::getNewPropertyRangeMapper(const PropertyName &name) const
Chris@167: {
Chris@167: if (name == "Gain") {
Chris@167: return new LinearRangeMapper(-50, 50, -25, 25, tr("dB"));
Chris@167: }
Chris@167: return 0;
Chris@167: }
Chris@167:
Chris@0: void
Chris@0: WaveformLayer::setProperty(const PropertyName &name, int value)
Chris@0: {
Chris@87: if (name == "Gain") {
Chris@908: setGain(float(pow(10, float(value)/20.0)));
Chris@87: } else if (name == "Normalize Visible Area") {
Chris@67: setAutoNormalize(value ? true : false);
Chris@87: } else if (name == "Channels") {
Chris@67: if (value == 1) setChannelMode(MixChannels);
Chris@67: else if (value == 2) setChannelMode(MergeChannels);
Chris@67: else setChannelMode(SeparateChannels);
Chris@87: } else if (name == "Scale") {
Chris@0: switch (value) {
Chris@0: default:
Chris@0: case 0: setScale(LinearScale); break;
Chris@0: case 1: setScale(MeterScale); break;
Chris@0: case 2: setScale(dBScale); break;
Chris@0: }
Chris@287: } else {
Chris@287: SingleColourLayer::setProperty(name, value);
Chris@0: }
Chris@0: }
Chris@0:
Chris@0: void
Chris@67: WaveformLayer::setGain(float gain)
Chris@0: {
Chris@0: if (m_gain == gain) return;
Chris@0: m_gain = gain;
Chris@0: m_cacheValid = false;
Chris@0: emit layerParametersChanged();
Chris@133: emit verticalZoomChanged();
Chris@0: }
Chris@0:
Chris@0: void
Chris@67: WaveformLayer::setAutoNormalize(bool autoNormalize)
Chris@67: {
Chris@67: if (m_autoNormalize == autoNormalize) return;
Chris@67: m_autoNormalize = autoNormalize;
Chris@67: m_cacheValid = false;
Chris@67: emit layerParametersChanged();
Chris@67: }
Chris@67:
Chris@67: void
Chris@0: WaveformLayer::setShowMeans(bool showMeans)
Chris@0: {
Chris@0: if (m_showMeans == showMeans) return;
Chris@0: m_showMeans = showMeans;
Chris@0: m_cacheValid = false;
Chris@0: emit layerParametersChanged();
Chris@0: }
Chris@0:
Chris@0: void
Chris@0: WaveformLayer::setUseGreyscale(bool useGreyscale)
Chris@0: {
Chris@0: if (m_greyscale == useGreyscale) return;
Chris@0: m_greyscale = useGreyscale;
Chris@0: m_cacheValid = false;
Chris@0: emit layerParametersChanged();
Chris@0: }
Chris@0:
Chris@0: void
Chris@0: WaveformLayer::setChannelMode(ChannelMode channelMode)
Chris@0: {
Chris@0: if (m_channelMode == channelMode) return;
Chris@0: m_channelMode = channelMode;
Chris@0: m_cacheValid = false;
Chris@0: emit layerParametersChanged();
Chris@0: }
Chris@0:
Chris@0: void
Chris@0: WaveformLayer::setChannel(int channel)
Chris@0: {
Chris@587: // SVDEBUG << "WaveformLayer::setChannel(" << channel << ")" << endl;
Chris@0:
Chris@0: if (m_channel == channel) return;
Chris@0: m_channel = channel;
Chris@0: m_cacheValid = false;
Chris@0: emit layerParametersChanged();
Chris@0: }
Chris@0:
Chris@0: void
Chris@0: WaveformLayer::setScale(Scale scale)
Chris@0: {
Chris@0: if (m_scale == scale) return;
Chris@0: m_scale = scale;
Chris@0: m_cacheValid = false;
Chris@0: emit layerParametersChanged();
Chris@0: }
Chris@0:
Chris@0: void
Chris@908: WaveformLayer::setMiddleLineHeight(double height)
Chris@709: {
Chris@709: if (m_middleLineHeight == height) return;
Chris@709: m_middleLineHeight = height;
Chris@709: m_cacheValid = false;
Chris@709: emit layerParametersChanged();
Chris@709: }
Chris@709:
Chris@709: void
Chris@0: WaveformLayer::setAggressiveCacheing(bool aggressive)
Chris@0: {
Chris@0: if (m_aggressive == aggressive) return;
Chris@0: m_aggressive = aggressive;
Chris@0: m_cacheValid = false;
Chris@0: emit layerParametersChanged();
Chris@0: }
Chris@0:
Chris@0: int
Chris@918: WaveformLayer::getCompletion(LayerGeometryProvider *) const
Chris@0: {
Chris@0: int completion = 100;
Chris@0: if (!m_model || !m_model->isOK()) return completion;
Chris@0: if (m_model->isReady(&completion)) return 100;
Chris@0: return completion;
Chris@0: }
Chris@0:
Chris@79: bool
Chris@908: WaveformLayer::getValueExtents(double &min, double &max,
Chris@248: bool &, QString &unit) const
Chris@79: {
Chris@79: if (m_scale == LinearScale) {
Chris@79: min = 0.0;
Chris@79: max = 1.0;
Chris@79: unit = "V";
Chris@79: } else if (m_scale == MeterScale) {
Chris@79: return false; //!!!
Chris@79: } else {
Chris@79: min = AudioLevel::multiplier_to_dB(0.0);
Chris@79: max = AudioLevel::multiplier_to_dB(1.0);
Chris@79: unit = "dB";
Chris@79: }
Chris@79: return true;
Chris@79: }
Chris@79:
Chris@0: int
Chris@908: WaveformLayer::dBscale(double sample, int m) const
Chris@0: {
Chris@67: if (sample < 0.0) return dBscale(-sample, m);
Chris@908: double dB = AudioLevel::multiplier_to_dB(sample);
Chris@0: if (dB < -50.0) return 0;
Chris@0: if (dB > 0.0) return m;
Chris@0: return int(((dB + 50.0) * m) / 50.0 + 0.1);
Chris@0: }
Chris@0:
Chris@805: int
Chris@805: WaveformLayer::getChannelArrangement(int &min, int &max,
Chris@67: bool &merging, bool &mixing)
Chris@0: const
Chris@0: {
Chris@0: if (!m_model || !m_model->isOK()) return 0;
Chris@0:
Chris@805: int channels = m_model->getChannelCount();
Chris@0: if (channels == 0) return 0;
Chris@0:
Chris@805: int rawChannels = channels;
Chris@0:
Chris@0: if (m_channel == -1) {
Chris@0: min = 0;
Chris@67: if (m_channelMode == MergeChannels ||
Chris@67: m_channelMode == MixChannels) {
Chris@0: max = 0;
Chris@0: channels = 1;
Chris@0: } else {
Chris@0: max = channels - 1;
Chris@0: }
Chris@0: } else {
Chris@0: min = m_channel;
Chris@0: max = m_channel;
Chris@0: rawChannels = 1;
Chris@0: channels = 1;
Chris@0: }
Chris@0:
Chris@0: merging = (m_channelMode == MergeChannels && rawChannels > 1);
Chris@67: mixing = (m_channelMode == MixChannels && rawChannels > 1);
Chris@0:
Chris@587: // SVDEBUG << "WaveformLayer::getChannelArrangement: min " << min << ", max " << max << ", merging " << merging << ", channels " << channels << endl;
Chris@0:
Chris@0: return channels;
Chris@0: }
Chris@0:
Chris@67: bool
Chris@918: WaveformLayer::isLayerScrollable(const LayerGeometryProvider *) const
Chris@67: {
Chris@67: return !m_autoNormalize;
Chris@67: }
Chris@67:
Chris@68: static float meterdbs[] = { -40, -30, -20, -15, -10,
Chris@68: -5, -3, -2, -1, -0.5, 0 };
Chris@68:
Chris@365: bool
Chris@918: WaveformLayer::getSourceFramesForX(LayerGeometryProvider *v, int x, int modelZoomLevel,
Chris@908: sv_frame_t &f0, sv_frame_t &f1) const
Chris@365: {
Chris@908: sv_frame_t viewFrame = v->getFrameForX(x);
Chris@365: if (viewFrame < 0) {
Chris@365: f0 = 0;
Chris@365: f1 = 0;
Chris@365: return false;
Chris@365: }
Chris@365:
Chris@365: f0 = viewFrame;
Chris@365:
Chris@365: f0 = f0 / modelZoomLevel;
Chris@365: f0 = f0 * modelZoomLevel;
Chris@365:
Chris@365: viewFrame = v->getFrameForX(x + 1);
Chris@365:
Chris@365: f1 = viewFrame;
Chris@365: f1 = f1 / modelZoomLevel;
Chris@365: f1 = f1 * modelZoomLevel;
Chris@365:
Chris@365: return (f0 < m_model->getEndFrame());
Chris@365: }
Chris@365:
Chris@365: float
Chris@918: WaveformLayer::getNormalizeGain(LayerGeometryProvider *v, int channel) const
Chris@365: {
Chris@908: sv_frame_t startFrame = v->getStartFrame();
Chris@908: sv_frame_t endFrame = v->getEndFrame();
Chris@365:
Chris@908: sv_frame_t modelStart = m_model->getStartFrame();
Chris@908: sv_frame_t modelEnd = m_model->getEndFrame();
Chris@365:
Chris@908: sv_frame_t rangeStart, rangeEnd;
Chris@365:
Chris@365: if (startFrame < modelStart) rangeStart = modelStart;
Chris@365: else rangeStart = startFrame;
Chris@365:
Chris@365: if (endFrame < 0) rangeEnd = 0;
Chris@365: else if (endFrame > modelEnd) rangeEnd = modelEnd;
Chris@365: else rangeEnd = endFrame;
Chris@365:
Chris@365: if (rangeEnd < rangeStart) rangeEnd = rangeStart;
Chris@365:
Chris@365: RangeSummarisableTimeValueModel::Range range =
Chris@365: m_model->getSummary(channel, rangeStart, rangeEnd - rangeStart);
Chris@365:
Chris@805: int minChannel = 0, maxChannel = 0;
Chris@365: bool mergingChannels = false, mixingChannels = false;
Chris@365:
Chris@859: (void)getChannelArrangement(minChannel, maxChannel,
Chris@859: mergingChannels, mixingChannels);
Chris@365:
Chris@365: if (mergingChannels || mixingChannels) {
Chris@365: RangeSummarisableTimeValueModel::Range otherRange =
Chris@365: m_model->getSummary(1, rangeStart, rangeEnd - rangeStart);
Chris@386: range.setMax(std::max(range.max(), otherRange.max()));
Chris@386: range.setMin(std::min(range.min(), otherRange.min()));
Chris@386: range.setAbsmean(std::min(range.absmean(), otherRange.absmean()));
Chris@365: }
Chris@365:
Chris@908: return float(1.0 / std::max(fabs(range.max()), fabs(range.min())));
Chris@365: }
Chris@365:
Chris@0: void
Chris@916: WaveformLayer::paint(LayerGeometryProvider *v, QPainter &viewPainter, QRect rect) const
Chris@0: {
Chris@0: if (!m_model || !m_model->isOK()) {
Chris@0: return;
Chris@0: }
Chris@0:
Chris@44: int zoomLevel = v->getZoomLevel();
Chris@0:
Chris@2: #ifdef DEBUG_WAVEFORM_PAINT
Chris@0: Profiler profiler("WaveformLayer::paint", true);
Chris@682: cerr << "WaveformLayer::paint (" << rect.x() << "," << rect.y()
Chris@612: << ") [" << rect.width() << "x" << rect.height() << "]: zoom " << zoomLevel << endl;
Chris@2: #endif
Chris@0:
Chris@805: int channels = 0, minChannel = 0, maxChannel = 0;
Chris@67: bool mergingChannels = false, mixingChannels = false;
Chris@0:
Chris@67: channels = getChannelArrangement(minChannel, maxChannel,
Chris@67: mergingChannels, mixingChannels);
Chris@0: if (channels == 0) return;
Chris@0:
Chris@915: int w = v->getPaintWidth();
Chris@915: int h = v->getPaintHeight();
Chris@0:
Chris@0: bool ready = m_model->isReady();
Chris@0: QPainter *paint;
Chris@0:
Chris@0: if (m_aggressive) {
Chris@0:
Chris@214: #ifdef DEBUG_WAVEFORM_PAINT
Chris@682: cerr << "WaveformLayer::paint: aggressive is true" << endl;
Chris@214: #endif
Chris@214:
Chris@0: if (m_cacheValid && (zoomLevel != m_cacheZoomLevel)) {
Chris@0: m_cacheValid = false;
Chris@0: }
Chris@0:
Chris@214: if (!m_cache || m_cache->width() != w || m_cache->height() != h) {
Chris@214: #ifdef DEBUG_WAVEFORM_PAINT
Chris@214: if (m_cache) {
Chris@682: cerr << "WaveformLayer::paint: cache size " << m_cache->width() << "x" << m_cache->height() << " differs from view size " << w << "x" << h << ": regenerating aggressive cache" << endl;
Chris@214: }
Chris@214: #endif
Chris@214: delete m_cache;
Chris@214: m_cache = new QPixmap(w, h);
Chris@214: m_cacheValid = false;
Chris@214: }
Chris@214:
Chris@0: if (m_cacheValid) {
Chris@0: viewPainter.drawPixmap(rect, *m_cache, rect);
Chris@0: return;
Chris@0: }
Chris@0:
Chris@0: paint = new QPainter(m_cache);
Chris@0:
Chris@0: paint->setPen(Qt::NoPen);
Chris@287: paint->setBrush(getBackgroundQColor(v));
Chris@0: paint->drawRect(rect);
Chris@0:
Chris@287: paint->setPen(getForegroundQColor(v));
Chris@0: paint->setBrush(Qt::NoBrush);
Chris@0:
Chris@0: } else {
Chris@0: paint = &viewPainter;
Chris@0: }
Chris@0:
Chris@28: paint->setRenderHint(QPainter::Antialiasing, false);
Chris@28:
Chris@709: if (m_middleLineHeight != 0.5) {
Chris@709: paint->save();
Chris@908: double space = m_middleLineHeight * 2;
Chris@709: if (space > 1.0) space = 2.0 - space;
Chris@908: double yt = h * (m_middleLineHeight - space/2);
Chris@709: paint->translate(QPointF(0, yt));
Chris@709: paint->scale(1.0, space);
Chris@709: }
Chris@709:
Chris@0: int x0 = 0, x1 = w - 1;
Chris@0: int y0 = 0, y1 = h - 1;
Chris@0:
Chris@0: x0 = rect.left();
Chris@0: x1 = rect.right();
Chris@0: y0 = rect.top();
Chris@0: y1 = rect.bottom();
Chris@0:
Chris@28: if (x0 > 0) --x0;
Chris@915: if (x1 < w) ++x1;
Chris@28:
Chris@365: // Our zoom level may differ from that at which the underlying
Chris@365: // model has its blocks.
Chris@302:
Chris@365: // Each pixel within our visible range must always draw from
Chris@365: // exactly the same set of underlying audio frames, no matter what
Chris@365: // the range being drawn is. And that set of underlying frames
Chris@365: // must remain the same when we scroll one or more pixels left or
Chris@365: // right.
Chris@365:
Chris@805: int modelZoomLevel = m_model->getSummaryBlockSize(zoomLevel);
Chris@365:
Chris@908: sv_frame_t frame0;
Chris@908: sv_frame_t frame1;
Chris@908: sv_frame_t spare;
Chris@365:
Chris@365: getSourceFramesForX(v, x0, modelZoomLevel, frame0, spare);
Chris@365: getSourceFramesForX(v, x1, modelZoomLevel, spare, frame1);
Chris@365:
Chris@4: #ifdef DEBUG_WAVEFORM_PAINT
Chris@682: cerr << "Painting waveform from " << frame0 << " to " << frame1 << " (" << (x1-x0+1) << " pixels at zoom " << zoomLevel << " and model zoom " << modelZoomLevel << ")" << endl;
Chris@4: #endif
Chris@0:
Chris@200: RangeSummarisableTimeValueModel::RangeBlock *ranges =
Chris@200: new RangeSummarisableTimeValueModel::RangeBlock;
Chris@200:
Chris@200: RangeSummarisableTimeValueModel::RangeBlock *otherChannelRanges = 0;
Chris@0: RangeSummarisableTimeValueModel::Range range;
Chris@287:
Chris@287: QColor baseColour = getBaseQColor();
Chris@287: std::vector<QColor> greys = getPartialShades(v);
Chris@0:
Chris@285: QColor midColour = baseColour;
Chris@0: if (midColour == Qt::black) {
Chris@0: midColour = Qt::gray;
Chris@44: } else if (v->hasLightBackground()) {
Chris@0: midColour = midColour.light(150);
Chris@0: } else {
Chris@0: midColour = midColour.light(50);
Chris@0: }
Chris@0:
Chris@805: while ((int)m_effectiveGains.size() <= maxChannel) {
Chris@67: m_effectiveGains.push_back(m_gain);
Chris@67: }
Chris@67:
Chris@805: for (int ch = minChannel; ch <= maxChannel; ++ch) {
Chris@0:
Chris@0: int prevRangeBottom = -1, prevRangeTop = -1;
Chris@285: QColor prevRangeBottomColour = baseColour, prevRangeTopColour = baseColour;
Chris@0:
Chris@67: m_effectiveGains[ch] = m_gain;
Chris@67:
Chris@67: if (m_autoNormalize) {
Chris@365: m_effectiveGains[ch] = getNormalizeGain(v, ch);
Chris@67: }
Chris@67:
Chris@908: double gain = m_effectiveGains[ch];
Chris@67:
Chris@68: int m = (h / channels) / 2;
Chris@68: int my = m + (((ch - minChannel) * h) / channels);
Chris@612:
Chris@612: #ifdef DEBUG_WAVEFORM_PAINT
Chris@682: cerr << "ch = " << ch << ", channels = " << channels << ", m = " << m << ", my = " << my << ", h = " << h << endl;
Chris@612: #endif
Chris@68:
Chris@68: if (my - m > y1 || my + m < y0) continue;
Chris@68:
Chris@68: if ((m_scale == dBScale || m_scale == MeterScale) &&
Chris@68: m_channelMode != MergeChannels) {
Chris@68: m = (h / channels);
Chris@68: my = m + (((ch - minChannel) * h) / channels);
Chris@68: }
Chris@68:
Chris@295: paint->setPen(greys[1]);
Chris@68: paint->drawLine(x0, my, x1, my);
Chris@68:
Chris@68: int n = 10;
Chris@68: int py = -1;
Chris@68:
Chris@195: if (v->hasLightBackground() &&
Chris@195: v->getViewManager() &&
Chris@195: v->getViewManager()->shouldShowScaleGuides()) {
Chris@68:
Chris@68: paint->setPen(QColor(240, 240, 240));
Chris@68:
Chris@68: for (int i = 1; i < n; ++i) {
Chris@68:
Chris@908: double val = 0.0, nval = 0.0;
Chris@68:
Chris@68: switch (m_scale) {
Chris@68:
Chris@68: case LinearScale:
Chris@68: val = (i * gain) / n;
Chris@68: if (i > 0) nval = -val;
Chris@68: break;
Chris@68:
Chris@68: case MeterScale:
Chris@68: val = AudioLevel::dB_to_multiplier(meterdbs[i]) * gain;
Chris@68: break;
Chris@68:
Chris@68: case dBScale:
Chris@68: val = AudioLevel::dB_to_multiplier(-(10*n) + i * 10) * gain;
Chris@68: break;
Chris@68: }
Chris@68:
Chris@68: if (val < -1.0 || val > 1.0) continue;
Chris@68:
Chris@274: int y = getYForValue(v, val, ch);
Chris@68:
Chris@68: if (py >= 0 && abs(y - py) < 10) continue;
Chris@68: else py = y;
Chris@68:
Chris@68: int ny = y;
Chris@68: if (nval != 0.0) {
Chris@274: ny = getYForValue(v, nval, ch);
Chris@68: }
Chris@68:
Chris@68: paint->drawLine(x0, y, x1, y);
Chris@68: if (ny != y) {
Chris@68: paint->drawLine(x0, ny, x1, ny);
Chris@68: }
Chris@68: }
Chris@68: }
Chris@365:
Chris@365: m_model->getSummaries(ch, frame0, frame1 - frame0,
Chris@365: *ranges, modelZoomLevel);
Chris@68:
Chris@365: #ifdef DEBUG_WAVEFORM_PAINT
Chris@682: cerr << "channel " << ch << ": " << ranges->size() << " ranges from " << frame0 << " to " << frame1 << " at zoom level " << modelZoomLevel << endl;
Chris@365: #endif
Chris@68:
Chris@68: if (mergingChannels || mixingChannels) {
Chris@71: if (m_model->getChannelCount() > 1) {
Chris@200: if (!otherChannelRanges) {
Chris@200: otherChannelRanges =
Chris@200: new RangeSummarisableTimeValueModel::RangeBlock;
Chris@200: }
Chris@302: m_model->getSummaries
Chris@365: (1, frame0, frame1 - frame0, *otherChannelRanges,
Chris@200: modelZoomLevel);
Chris@71: } else {
Chris@200: if (otherChannelRanges != ranges) delete otherChannelRanges;
Chris@71: otherChannelRanges = ranges;
Chris@71: }
Chris@68: }
Chris@68:
Chris@0: for (int x = x0; x <= x1; ++x) {
Chris@0:
Chris@0: range = RangeSummarisableTimeValueModel::Range();
Chris@0:
Chris@908: sv_frame_t f0, f1;
Chris@365: if (!getSourceFramesForX(v, x, modelZoomLevel, f0, f1)) continue;
Chris@365: f1 = f1 - 1;
Chris@365:
Chris@365: if (f0 < frame0) {
Chris@682: cerr << "ERROR: WaveformLayer::paint: pixel " << x << " has f0 = " << f0 << " which is less than range frame0 " << frame0 << " for x0 = " << x0 << endl;
Chris@365: continue;
Chris@302: }
Chris@0:
Chris@908: sv_frame_t i0 = (f0 - frame0) / modelZoomLevel;
Chris@908: sv_frame_t i1 = (f1 - frame0) / modelZoomLevel;
Chris@362:
Chris@365: #ifdef DEBUG_WAVEFORM_PAINT
Chris@682: cerr << "WaveformLayer::paint: pixel " << x << ": i0 " << i0 << " (f " << f0 << "), i1 " << i1 << " (f " << f1 << ")" << endl;
Chris@365: #endif
Chris@0:
Chris@365: if (i1 > i0 + 1) {
Chris@682: cerr << "WaveformLayer::paint: ERROR: i1 " << i1 << " > i0 " << i0 << " plus one (zoom = " << zoomLevel << ", model zoom = " << modelZoomLevel << ")" << endl;
Chris@365: }
Chris@362:
Chris@989: if (ranges && i0 < (sv_frame_t)ranges->size()) {
Chris@362:
Chris@989: range = (*ranges)[size_t(i0)];
Chris@0:
Chris@805: if (i1 > i0 && i1 < (int)ranges->size()) {
Chris@989: range.setMax(std::max(range.max(),
Chris@989: (*ranges)[size_t(i1)].max()));
Chris@989: range.setMin(std::min(range.min(),
Chris@989: (*ranges)[size_t(i1)].min()));
Chris@989: range.setAbsmean((range.absmean()
Chris@989: + (*ranges)[size_t(i1)].absmean()) / 2);
Chris@0: }
Chris@0:
Chris@0: } else {
Chris@612: #ifdef DEBUG_WAVEFORM_PAINT
Chris@682: cerr << "No (or not enough) ranges for i0 = " << i0 << endl;
Chris@612: #endif
Chris@0: continue;
Chris@0: }
Chris@0:
Chris@0: int rangeBottom = 0, rangeTop = 0, meanBottom = 0, meanTop = 0;
Chris@0:
Chris@0: if (mergingChannels) {
Chris@0:
Chris@989: if (otherChannelRanges && i0 < (sv_frame_t)otherChannelRanges->size()) {
Chris@0:
Chris@386: range.setMax(fabsf(range.max()));
Chris@989: range.setMin(-fabsf((*otherChannelRanges)[size_t(i0)].max()));
Chris@386: range.setAbsmean
Chris@386: ((range.absmean() +
Chris@989: (*otherChannelRanges)[size_t(i0)].absmean()) / 2);
Chris@0:
Chris@989: if (i1 > i0 && i1 < (sv_frame_t)otherChannelRanges->size()) {
Chris@0: // let's not concern ourselves about the mean
Chris@386: range.setMin
Chris@386: (std::min
Chris@386: (range.min(),
Chris@989: -fabsf((*otherChannelRanges)[size_t(i1)].max())));
Chris@0: }
Chris@0: }
Chris@67:
Chris@67: } else if (mixingChannels) {
Chris@67:
Chris@989: if (otherChannelRanges && i0 < (sv_frame_t)otherChannelRanges->size()) {
Chris@67:
Chris@989: range.setMax((range.max()
Chris@989: + (*otherChannelRanges)[size_t(i0)].max()) / 2);
Chris@989: range.setMin((range.min()
Chris@989: + (*otherChannelRanges)[size_t(i0)].min()) / 2);
Chris@989: range.setAbsmean((range.absmean()
Chris@989: + (*otherChannelRanges)[size_t(i0)].absmean()) / 2);
Chris@67: }
Chris@67: }
Chris@0:
Chris@0: int greyLevels = 1;
Chris@0: if (m_greyscale && (m_scale == LinearScale)) greyLevels = 4;
Chris@0:
Chris@0: switch (m_scale) {
Chris@0:
Chris@0: case LinearScale:
Chris@908: rangeBottom = int(double(m * greyLevels) * range.min() * gain);
Chris@908: rangeTop = int(double(m * greyLevels) * range.max() * gain);
Chris@908: meanBottom = int(double(-m) * range.absmean() * gain);
Chris@908: meanTop = int(double(m) * range.absmean() * gain);
Chris@0: break;
Chris@0:
Chris@0: case dBScale:
Chris@67: if (!mergingChannels) {
Chris@386: int db0 = dBscale(range.min() * gain, m);
Chris@386: int db1 = dBscale(range.max() * gain, m);
Chris@67: rangeTop = std::max(db0, db1);
Chris@67: meanTop = std::min(db0, db1);
Chris@67: if (mixingChannels) rangeBottom = meanTop;
Chris@386: else rangeBottom = dBscale(range.absmean() * gain, m);
Chris@67: meanBottom = rangeBottom;
Chris@67: } else {
Chris@386: rangeBottom = -dBscale(range.min() * gain, m * greyLevels);
Chris@386: rangeTop = dBscale(range.max() * gain, m * greyLevels);
Chris@386: meanBottom = -dBscale(range.absmean() * gain, m);
Chris@386: meanTop = dBscale(range.absmean() * gain, m);
Chris@67: }
Chris@0: break;
Chris@0:
Chris@0: case MeterScale:
Chris@67: if (!mergingChannels) {
Chris@386: int r0 = abs(AudioLevel::multiplier_to_preview(range.min() * gain, m));
Chris@386: int r1 = abs(AudioLevel::multiplier_to_preview(range.max() * gain, m));
Chris@67: rangeTop = std::max(r0, r1);
Chris@67: meanTop = std::min(r0, r1);
Chris@67: if (mixingChannels) rangeBottom = meanTop;
Chris@386: else rangeBottom = AudioLevel::multiplier_to_preview(range.absmean() * gain, m);
Chris@67: meanBottom = rangeBottom;
Chris@67: } else {
Chris@386: rangeBottom = -AudioLevel::multiplier_to_preview(range.min() * gain, m * greyLevels);
Chris@386: rangeTop = AudioLevel::multiplier_to_preview(range.max() * gain, m * greyLevels);
Chris@386: meanBottom = -AudioLevel::multiplier_to_preview(range.absmean() * gain, m);
Chris@386: meanTop = AudioLevel::multiplier_to_preview(range.absmean() * gain, m);
Chris@67: }
Chris@67: break;
Chris@0: }
Chris@0:
Chris@27: rangeBottom = my * greyLevels - rangeBottom;
Chris@27: rangeTop = my * greyLevels - rangeTop;
Chris@27: meanBottom = my - meanBottom;
Chris@27: meanTop = my - meanTop;
Chris@27:
Chris@27: int topFill = (rangeTop % greyLevels);
Chris@27: if (topFill > 0) topFill = greyLevels - topFill;
Chris@27:
Chris@27: int bottomFill = (rangeBottom % greyLevels);
Chris@27:
Chris@0: rangeTop = rangeTop / greyLevels;
Chris@0: rangeBottom = rangeBottom / greyLevels;
Chris@0:
Chris@0: bool clipped = false;
Chris@27:
Chris@27: if (rangeTop < my - m) { rangeTop = my - m; }
Chris@27: if (rangeTop > my + m) { rangeTop = my + m; }
Chris@27: if (rangeBottom < my - m) { rangeBottom = my - m; }
Chris@27: if (rangeBottom > my + m) { rangeBottom = my + m; }
Chris@27:
Chris@386: if (range.max() <= -1.0 ||
Chris@386: range.max() >= 1.0) clipped = true;
Chris@0:
Chris@0: if (meanBottom > rangeBottom) meanBottom = rangeBottom;
Chris@0: if (meanTop < rangeTop) meanTop = rangeTop;
Chris@0:
Chris@0: bool drawMean = m_showMeans;
Chris@0: if (meanTop == rangeTop) {
Chris@0: if (meanTop < meanBottom) ++meanTop;
Chris@0: else drawMean = false;
Chris@0: }
Chris@67: if (meanBottom == rangeBottom && m_scale == LinearScale) {
Chris@0: if (meanBottom > meanTop) --meanBottom;
Chris@0: else drawMean = false;
Chris@0: }
Chris@0:
Chris@0: if (x != x0 && prevRangeBottom != -1) {
Chris@673: if (prevRangeBottom > rangeBottom + 1 &&
Chris@673: prevRangeTop > rangeBottom + 1) {
Chris@28: // paint->setPen(midColour);
Chris@285: paint->setPen(baseColour);
Chris@673: paint->drawLine(x-1, prevRangeTop, x, rangeBottom + 1);
Chris@28: paint->setPen(prevRangeTopColour);
Chris@0: paint->drawPoint(x-1, prevRangeTop);
Chris@673: } else if (prevRangeBottom < rangeTop - 1 &&
Chris@673: prevRangeTop < rangeTop - 1) {
Chris@28: // paint->setPen(midColour);
Chris@285: paint->setPen(baseColour);
Chris@673: paint->drawLine(x-1, prevRangeBottom, x, rangeTop - 1);
Chris@28: paint->setPen(prevRangeBottomColour);
Chris@0: paint->drawPoint(x-1, prevRangeBottom);
Chris@0: }
Chris@0: }
Chris@0:
Chris@0: if (ready) {
Chris@67: if (clipped /*!!! ||
Chris@386: range.min() * gain <= -1.0 ||
Chris@386: range.max() * gain >= 1.0 */) {
Chris@285: paint->setPen(Qt::red); //!!! getContrastingColour
Chris@0: } else {
Chris@285: paint->setPen(baseColour);
Chris@0: }
Chris@0: } else {
Chris@0: paint->setPen(midColour);
Chris@0: }
Chris@0:
Chris@612: #ifdef DEBUG_WAVEFORM_PAINT
Chris@682: cerr << "range " << rangeBottom << " -> " << rangeTop << ", means " << meanBottom << " -> " << meanTop << ", raw range " << range.min() << " -> " << range.max() << endl;
Chris@612: #endif
Chris@612:
Chris@612: if (rangeTop == rangeBottom) {
Chris@612: paint->drawPoint(x, rangeTop);
Chris@612: } else {
Chris@612: paint->drawLine(x, rangeBottom, x, rangeTop);
Chris@612: }
Chris@0:
Chris@285: prevRangeTopColour = baseColour;
Chris@285: prevRangeBottomColour = baseColour;
Chris@28:
Chris@0: if (m_greyscale && (m_scale == LinearScale) && ready) {
Chris@0: if (!clipped) {
Chris@0: if (rangeTop < rangeBottom) {
Chris@0: if (topFill > 0 &&
Chris@0: (!drawMean || (rangeTop < meanTop - 1))) {
Chris@0: paint->setPen(greys[topFill - 1]);
Chris@27: paint->drawPoint(x, rangeTop);
Chris@28: prevRangeTopColour = greys[topFill - 1];
Chris@0: }
Chris@0: if (bottomFill > 0 &&
Chris@0: (!drawMean || (rangeBottom > meanBottom + 1))) {
Chris@0: paint->setPen(greys[bottomFill - 1]);
Chris@27: paint->drawPoint(x, rangeBottom);
Chris@28: prevRangeBottomColour = greys[bottomFill - 1];
Chris@0: }
Chris@0: }
Chris@0: }
Chris@0: }
Chris@0:
Chris@0: if (drawMean) {
Chris@0: paint->setPen(midColour);
Chris@0: paint->drawLine(x, meanBottom, x, meanTop);
Chris@0: }
Chris@0:
Chris@0: prevRangeBottom = rangeBottom;
Chris@0: prevRangeTop = rangeTop;
Chris@0: }
Chris@0: }
Chris@0:
Chris@709: if (m_middleLineHeight != 0.5) {
Chris@709: paint->restore();
Chris@709: }
Chris@709:
Chris@0: if (m_aggressive) {
Chris@41:
Chris@915: if (ready && rect == v->getPaintRect()) {
Chris@0: m_cacheValid = true;
Chris@0: m_cacheZoomLevel = zoomLevel;
Chris@0: }
Chris@0: paint->end();
Chris@0: delete paint;
Chris@0: viewPainter.drawPixmap(rect, *m_cache, rect);
Chris@0: }
Chris@200:
Chris@200: if (otherChannelRanges != ranges) delete otherChannelRanges;
Chris@200: delete ranges;
Chris@0: }
Chris@0:
Chris@25: QString
Chris@918: WaveformLayer::getFeatureDescription(LayerGeometryProvider *v, QPoint &pos) const
Chris@25: {
Chris@25: int x = pos.x();
Chris@25:
Chris@25: if (!m_model || !m_model->isOK()) return "";
Chris@25:
Chris@365: int zoomLevel = v->getZoomLevel();
Chris@25:
Chris@805: int modelZoomLevel = m_model->getSummaryBlockSize(zoomLevel);
Chris@365:
Chris@908: sv_frame_t f0, f1;
Chris@365: if (!getSourceFramesForX(v, x, modelZoomLevel, f0, f1)) return "";
Chris@25:
Chris@25: QString text;
Chris@25:
Chris@25: RealTime rt0 = RealTime::frame2RealTime(f0, m_model->getSampleRate());
Chris@25: RealTime rt1 = RealTime::frame2RealTime(f1, m_model->getSampleRate());
Chris@25:
Chris@25: if (f1 != f0 + 1 && (rt0.sec != rt1.sec || rt0.msec() != rt1.msec())) {
Chris@25: text += tr("Time:\t%1 - %2")
Chris@25: .arg(rt0.toText(true).c_str())
Chris@25: .arg(rt1.toText(true).c_str());
Chris@25: } else {
Chris@25: text += tr("Time:\t%1")
Chris@25: .arg(rt0.toText(true).c_str());
Chris@25: }
Chris@25:
Chris@805: int channels = 0, minChannel = 0, maxChannel = 0;
Chris@67: bool mergingChannels = false, mixingChannels = false;
Chris@25:
Chris@67: channels = getChannelArrangement(minChannel, maxChannel,
Chris@67: mergingChannels, mixingChannels);
Chris@25: if (channels == 0) return "";
Chris@25:
Chris@805: for (int ch = minChannel; ch <= maxChannel; ++ch) {
Chris@25:
Chris@805: int blockSize = v->getZoomLevel();
Chris@200: RangeSummarisableTimeValueModel::RangeBlock ranges;
Chris@302: m_model->getSummaries(ch, f0, f1 - f0, ranges, blockSize);
Chris@25:
Chris@25: if (ranges.empty()) continue;
Chris@25:
Chris@25: RangeSummarisableTimeValueModel::Range range = ranges[0];
Chris@25:
Chris@25: QString label = tr("Level:");
Chris@25: if (minChannel != maxChannel) {
Chris@25: if (ch == 0) label = tr("Left:");
Chris@25: else if (ch == 1) label = tr("Right:");
Chris@25: else label = tr("Channel %1").arg(ch + 1);
Chris@25: }
Chris@25:
Chris@76: bool singleValue = false;
Chris@908: double min, max;
Chris@76:
Chris@386: if (fabs(range.min()) < 0.01) {
Chris@386: min = range.min();
Chris@386: max = range.max();
Chris@76: singleValue = (min == max);
Chris@76: } else {
Chris@908: int imin = int(lrint(range.min() * 10000));
Chris@908: int imax = int(lrint(range.max() * 10000));
Chris@76: singleValue = (imin == imax);
Chris@908: min = double(imin)/10000;
Chris@908: max = double(imax)/10000;
Chris@76: }
Chris@76:
Chris@386: int db = int(AudioLevel::multiplier_to_dB(std::max(fabsf(range.min()),
Chris@386: fabsf(range.max())))
Chris@25: * 100);
Chris@25:
Chris@76: if (!singleValue) {
Chris@25: text += tr("\n%1\t%2 - %3 (%4 dB peak)")
Chris@908: .arg(label).arg(min).arg(max).arg(double(db)/100);
Chris@25: } else {
Chris@25: text += tr("\n%1\t%2 (%3 dB peak)")
Chris@908: .arg(label).arg(min).arg(double(db)/100);
Chris@25: }
Chris@25: }
Chris@25:
Chris@25: return text;
Chris@25: }
Chris@25:
Chris@0: int
Chris@918: WaveformLayer::getYForValue(const LayerGeometryProvider *v, double value, int channel) const
Chris@68: {
Chris@805: int channels = 0, minChannel = 0, maxChannel = 0;
Chris@274: bool mergingChannels = false, mixingChannels = false;
Chris@274:
Chris@274: channels = getChannelArrangement(minChannel, maxChannel,
Chris@274: mergingChannels, mixingChannels);
Chris@853: if (channels == 0) return 0;
Chris@68: if (maxChannel < minChannel || channel < minChannel) return 0;
Chris@68:
Chris@918: int h = v->getPaintHeight();
Chris@68: int m = (h / channels) / 2;
Chris@68:
Chris@68: if ((m_scale == dBScale || m_scale == MeterScale) &&
Chris@68: m_channelMode != MergeChannels) {
Chris@68: m = (h / channels);
Chris@68: }
Chris@68:
Chris@274: int my = m + (((channel - minChannel) * h) / channels);
Chris@274:
Chris@68: int vy = 0;
Chris@68:
Chris@274: switch (m_scale) {
Chris@68:
Chris@68: case LinearScale:
Chris@68: vy = int(m * value);
Chris@68: break;
Chris@68:
Chris@68: case MeterScale:
Chris@68: vy = AudioLevel::multiplier_to_preview(value, m);
Chris@68: break;
Chris@68:
Chris@68: case dBScale:
Chris@68: vy = dBscale(value, m);
Chris@68: break;
Chris@68: }
Chris@68:
Chris@682: // cerr << "mergingChannels= " << mergingChannels << ", channel = " << channel << ", value = " << value << ", vy = " << vy << endl;
Chris@324:
Chris@68: return my - vy;
Chris@68: }
Chris@68:
Chris@908: double
Chris@918: WaveformLayer::getValueForY(const LayerGeometryProvider *v, int y, int &channel) const
Chris@261: {
Chris@805: int channels = 0, minChannel = 0, maxChannel = 0;
Chris@274: bool mergingChannels = false, mixingChannels = false;
Chris@274:
Chris@274: channels = getChannelArrangement(minChannel, maxChannel,
Chris@274: mergingChannels, mixingChannels);
Chris@853: if (channels == 0) return 0;
Chris@261: if (maxChannel < minChannel) return 0;
Chris@261:
Chris@918: int h = v->getPaintHeight();
Chris@261: int m = (h / channels) / 2;
Chris@261:
Chris@261: if ((m_scale == dBScale || m_scale == MeterScale) &&
Chris@261: m_channelMode != MergeChannels) {
Chris@261: m = (h / channels);
Chris@261: }
Chris@274:
Chris@274: channel = (y * channels) / h + minChannel;
Chris@261:
Chris@261: int my = m + (((channel - minChannel) * h) / channels);
Chris@261:
Chris@262: int vy = my - y;
Chris@908: double value = 0;
Chris@908: double thresh = -50.f;
Chris@261:
Chris@274: switch (m_scale) {
Chris@261:
Chris@261: case LinearScale:
Chris@908: value = double(vy) / m;
Chris@261: break;
Chris@261:
Chris@261: case MeterScale:
Chris@261: value = AudioLevel::preview_to_multiplier(vy, m);
Chris@261: break;
Chris@261:
Chris@261: case dBScale:
Chris@908: value = (-thresh * double(vy)) / m + thresh;
Chris@274: value = AudioLevel::dB_to_multiplier(value);
Chris@261: break;
Chris@261: }
Chris@261:
Chris@274: return value / m_gain;
Chris@261: }
Chris@261:
Chris@261: bool
Chris@918: WaveformLayer::getYScaleValue(const LayerGeometryProvider *v, int y,
Chris@908: double &value, QString &unit) const
Chris@261: {
Chris@805: int channel;
Chris@261:
Chris@274: value = getValueForY(v, y, channel);
Chris@261:
Chris@274: if (m_scale == dBScale || m_scale == MeterScale) {
Chris@261:
Chris@908: double thresh = -50.f;
Chris@274:
Chris@908: if (value > 0.0) {
Chris@908: value = 10.0 * log10(value);
Chris@274: if (value < thresh) value = thresh;
Chris@274: } else value = thresh;
Chris@274:
Chris@274: unit = "dBV";
Chris@274:
Chris@274: } else {
Chris@274: unit = "V";
Chris@274: }
Chris@274:
Chris@274: return true;
Chris@274: }
Chris@274:
Chris@274: bool
Chris@918: WaveformLayer::getYScaleDifference(const LayerGeometryProvider *v, int y0, int y1,
Chris@908: double &diff, QString &unit) const
Chris@274: {
Chris@805: int c0, c1;
Chris@908: double v0 = getValueForY(v, y0, c0);
Chris@908: double v1 = getValueForY(v, y1, c1);
Chris@274:
Chris@274: if (c0 != c1) {
Chris@274: // different channels, not comparable
Chris@908: diff = 0.0;
Chris@274: unit = "";
Chris@274: return false;
Chris@274: }
Chris@274:
Chris@274: if (m_scale == dBScale || m_scale == MeterScale) {
Chris@274:
Chris@908: double thresh = -50.0;
Chris@274:
Chris@274: if (v1 == v0) diff = thresh;
Chris@274: else {
Chris@274: if (v1 > v0) diff = v0 / v1;
Chris@274: else diff = v1 / v0;
Chris@274:
Chris@908: diff = 10.0 * log10(diff);
Chris@274: if (diff < thresh) diff = thresh;
Chris@274: }
Chris@274:
Chris@274: unit = "dBV";
Chris@274:
Chris@274: } else {
Chris@908: diff = fabs(v1 - v0);
Chris@274: unit = "V";
Chris@274: }
Chris@274:
Chris@261: return true;
Chris@261: }
Chris@261:
Chris@68: int
Chris@918: WaveformLayer::getVerticalScaleWidth(LayerGeometryProvider *, bool, QPainter &paint) const
Chris@0: {
Chris@0: if (m_scale == LinearScale) {
Chris@0: return paint.fontMetrics().width("0.0") + 13;
Chris@0: } else {
Chris@0: return std::max(paint.fontMetrics().width(tr("0dB")),
Chris@1147: paint.fontMetrics().width(Strings::minus_infinity)) + 13;
Chris@0: }
Chris@0: }
Chris@0:
Chris@0: void
Chris@918: WaveformLayer::paintVerticalScale(LayerGeometryProvider *v, bool, QPainter &paint, QRect rect) const
Chris@0: {
Chris@0: if (!m_model || !m_model->isOK()) {
Chris@0: return;
Chris@0: }
Chris@0:
Chris@805: int channels = 0, minChannel = 0, maxChannel = 0;
Chris@67: bool mergingChannels = false, mixingChannels = false;
Chris@0:
Chris@67: channels = getChannelArrangement(minChannel, maxChannel,
Chris@67: mergingChannels, mixingChannels);
Chris@0: if (channels == 0) return;
Chris@0:
Chris@0: int h = rect.height(), w = rect.width();
Chris@0: int textHeight = paint.fontMetrics().height();
Chris@0: int toff = -textHeight/2 + paint.fontMetrics().ascent() + 1;
Chris@0:
Chris@908: double gain = m_gain;
Chris@67:
Chris@805: for (int ch = minChannel; ch <= maxChannel; ++ch) {
Chris@0:
Chris@68: int lastLabelledY = -1;
Chris@0:
Chris@805: if (ch < (int)m_effectiveGains.size()) gain = m_effectiveGains[ch];
Chris@67:
Chris@68: int n = 10;
Chris@0:
Chris@68: for (int i = 0; i <= n; ++i) {
Chris@68:
Chris@908: double val = 0.0, nval = 0.0;
Chris@0: QString text = "";
Chris@0:
Chris@68: switch (m_scale) {
Chris@68:
Chris@68: case LinearScale:
Chris@68: val = (i * gain) / n;
Chris@908: text = QString("%1").arg(double(i) / n);
Chris@68: if (i == 0) text = "0.0";
Chris@68: else {
Chris@68: nval = -val;
Chris@68: if (i == n) text = "1.0";
Chris@68: }
Chris@68: break;
Chris@0:
Chris@68: case MeterScale:
Chris@68: val = AudioLevel::dB_to_multiplier(meterdbs[i]) * gain;
Chris@68: text = QString("%1").arg(meterdbs[i]);
Chris@68: if (i == n) text = tr("0dB");
Chris@68: if (i == 0) {
Chris@1147: text = Strings::minus_infinity;
Chris@68: val = 0.0;
Chris@68: }
Chris@68: break;
Chris@0:
Chris@68: case dBScale:
Chris@68: val = AudioLevel::dB_to_multiplier(-(10*n) + i * 10) * gain;
Chris@68: text = QString("%1").arg(-(10*n) + i * 10);
Chris@68: if (i == n) text = tr("0dB");
Chris@68: if (i == 0) {
Chris@1147: text = Strings::minus_infinity;
Chris@68: val = 0.0;
Chris@68: }
Chris@68: break;
Chris@68: }
Chris@0:
Chris@68: if (val < -1.0 || val > 1.0) continue;
Chris@0:
Chris@274: int y = getYForValue(v, val, ch);
Chris@0:
Chris@68: int ny = y;
Chris@68: if (nval != 0.0) {
Chris@274: ny = getYForValue(v, nval, ch);
Chris@68: }
Chris@0:
Chris@68: bool spaceForLabel = (i == 0 ||
Chris@68: abs(y - lastLabelledY) >= textHeight - 1);
Chris@0:
Chris@68: if (spaceForLabel) {
Chris@0:
Chris@68: int tx = 3;
Chris@68: if (m_scale != LinearScale) {
Chris@68: tx = w - 10 - paint.fontMetrics().width(text);
Chris@68: }
Chris@68:
Chris@68: int ty = y;
Chris@68: if (ty < paint.fontMetrics().ascent()) {
Chris@68: ty = paint.fontMetrics().ascent();
Chris@68: } else if (ty > h - paint.fontMetrics().descent()) {
Chris@68: ty = h - paint.fontMetrics().descent();
Chris@68: } else {
Chris@68: ty += toff;
Chris@68: }
Chris@68: paint.drawText(tx, ty, text);
Chris@0:
Chris@68: lastLabelledY = ty - toff;
Chris@67:
Chris@68: if (ny != y) {
Chris@68: ty = ny;
Chris@68: if (ty < paint.fontMetrics().ascent()) {
Chris@68: ty = paint.fontMetrics().ascent();
Chris@68: } else if (ty > h - paint.fontMetrics().descent()) {
Chris@68: ty = h - paint.fontMetrics().descent();
Chris@68: } else {
Chris@68: ty += toff;
Chris@68: }
Chris@68: paint.drawText(tx, ty, text);
Chris@68: }
Chris@68:
Chris@68: paint.drawLine(w - 7, y, w, y);
Chris@68: if (ny != y) paint.drawLine(w - 7, ny, w, ny);
Chris@68:
Chris@68: } else {
Chris@68:
Chris@68: paint.drawLine(w - 4, y, w, y);
Chris@68: if (ny != y) paint.drawLine(w - 4, ny, w, ny);
Chris@68: }
Chris@0: }
Chris@0: }
Chris@0: }
Chris@0:
Chris@316: void
Chris@316: WaveformLayer::toXml(QTextStream &stream,
Chris@316: QString indent, QString extraAttributes) const
Chris@6: {
Chris@6: QString s;
Chris@6:
Chris@285: QString colourName, colourSpec, darkbg;
Chris@285: ColourDatabase::getInstance()->getStringValues
Chris@285: (m_colour, colourName, colourSpec, darkbg);
Chris@285:
Chris@6: s += QString("gain=\"%1\" "
Chris@287: "showMeans=\"%2\" "
Chris@287: "greyscale=\"%3\" "
Chris@287: "channelMode=\"%4\" "
Chris@287: "channel=\"%5\" "
Chris@287: "scale=\"%6\" "
Chris@709: "middleLineHeight=\"%7\" "
Chris@709: "aggressive=\"%8\" "
Chris@709: "autoNormalize=\"%9\"")
Chris@6: .arg(m_gain)
Chris@6: .arg(m_showMeans)
Chris@6: .arg(m_greyscale)
Chris@6: .arg(m_channelMode)
Chris@287: .arg(m_channel)
Chris@6: .arg(m_scale)
Chris@709: .arg(m_middleLineHeight)
Chris@67: .arg(m_aggressive)
Chris@67: .arg(m_autoNormalize);
Chris@6:
Chris@316: SingleColourLayer::toXml(stream, indent, extraAttributes + " " + s);
Chris@6: }
Chris@6:
Chris@11: void
Chris@11: WaveformLayer::setProperties(const QXmlAttributes &attributes)
Chris@11: {
Chris@11: bool ok = false;
Chris@11:
Chris@287: SingleColourLayer::setProperties(attributes);
Chris@287:
Chris@11: float gain = attributes.value("gain").toFloat(&ok);
Chris@11: if (ok) setGain(gain);
Chris@11:
Chris@11: bool showMeans = (attributes.value("showMeans") == "1" ||
Chris@11: attributes.value("showMeans") == "true");
Chris@11: setShowMeans(showMeans);
Chris@11:
Chris@11: bool greyscale = (attributes.value("greyscale") == "1" ||
Chris@11: attributes.value("greyscale") == "true");
Chris@11: setUseGreyscale(greyscale);
Chris@11:
Chris@11: ChannelMode channelMode = (ChannelMode)
Chris@11: attributes.value("channelMode").toInt(&ok);
Chris@11: if (ok) setChannelMode(channelMode);
Chris@11:
Chris@11: int channel = attributes.value("channel").toInt(&ok);
Chris@11: if (ok) setChannel(channel);
Chris@11:
Chris@709: Scale scale = (Scale)attributes.value("scale").toInt(&ok);
Chris@11: if (ok) setScale(scale);
Chris@11:
Chris@709: float middleLineHeight = attributes.value("middleLineHeight").toFloat(&ok);
Chris@709: if (ok) setMiddleLineHeight(middleLineHeight);
Chris@709:
Chris@11: bool aggressive = (attributes.value("aggressive") == "1" ||
Chris@11: attributes.value("aggressive") == "true");
Chris@11: setUseGreyscale(aggressive);
Chris@67:
Chris@67: bool autoNormalize = (attributes.value("autoNormalize") == "1" ||
Chris@67: attributes.value("autoNormalize") == "true");
Chris@67: setAutoNormalize(autoNormalize);
Chris@11: }
Chris@11:
Chris@133: int
Chris@133: WaveformLayer::getVerticalZoomSteps(int &defaultStep) const
Chris@133: {
Chris@133: defaultStep = 50;
Chris@133: return 100;
Chris@133: }
Chris@0:
Chris@133: int
Chris@133: WaveformLayer::getCurrentVerticalZoomStep() const
Chris@133: {
Chris@908: int val = int(lrint(log10(m_gain) * 20.0) + 50);
Chris@133: if (val < 0) val = 0;
Chris@133: if (val > 100) val = 100;
Chris@133: return val;
Chris@133: }
Chris@133:
Chris@133: void
Chris@133: WaveformLayer::setVerticalZoomStep(int step)
Chris@133: {
Chris@908: setGain(powf(10, float(step - 50) / 20.f));
Chris@133: }
Chris@133: