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 "Colour3DPlotLayer.h"
Chris@0: 
Chris@128: #include "view/View.h"
Chris@0: #include "base/Profiler.h"
Chris@197: #include "base/LogRange.h"
Chris@444: #include "base/RangeMapper.h"
Chris@376: #include "ColourMapper.h"
Chris@0: 
Chris@0: #include <QPainter>
Chris@0: #include <QImage>
Chris@0: #include <QRect>
Chris@316: #include <QTextStream>
Chris@0: 
Chris@0: #include <iostream>
Chris@0: 
Chris@0: #include <cassert>
Chris@0: 
Chris@353: //#define DEBUG_COLOUR_3D_PLOT_LAYER_PAINT 1
Chris@125: 
Chris@0: 
Chris@44: Colour3DPlotLayer::Colour3DPlotLayer() :
Chris@0:     m_model(0),
Chris@159:     m_cache(0),
Chris@461:     m_cacheValidStart(0),
Chris@461:     m_cacheValidEnd(0),
Chris@197:     m_colourScale(LinearScale),
Chris@461:     m_colourScaleSet(false),
Chris@197:     m_colourMap(0),
Chris@197:     m_normalizeColumns(false),
Chris@357:     m_normalizeVisibleArea(false),
Chris@444:     m_invertVertical(false),
Chris@444:     m_miny(0),
Chris@444:     m_maxy(0)
Chris@0: {
Chris@44:     
Chris@0: }
Chris@0: 
Chris@0: Colour3DPlotLayer::~Colour3DPlotLayer()
Chris@0: {
Chris@461:     delete m_cache;
Chris@0: }
Chris@0: 
Chris@0: void
Chris@0: Colour3DPlotLayer::setModel(const DenseThreeDimensionalModel *model)
Chris@0: {
Chris@193:     if (m_model == model) return;
Chris@193:     const DenseThreeDimensionalModel *oldModel = m_model;
Chris@0:     m_model = model;
Chris@0:     if (!m_model || !m_model->isOK()) return;
Chris@0: 
Chris@320:     connectSignals(m_model);
Chris@0: 
Chris@461:     connect(m_model, SIGNAL(modelChanged()), this, SLOT(modelChanged()));
Chris@0:     connect(m_model, SIGNAL(modelChanged(size_t, size_t)),
Chris@461: 	    this, SLOT(modelChanged(size_t, size_t)));
Chris@0: 
Chris@0:     emit modelReplaced();
Chris@193:     emit sliceableModelReplaced(oldModel, model);
Chris@0: }
Chris@0: 
Chris@0: void
Chris@0: Colour3DPlotLayer::cacheInvalid()
Chris@0: {
Chris@0:     delete m_cache; 
Chris@0:     m_cache = 0;
Chris@461:     m_cacheValidStart = 0;
Chris@461:     m_cacheValidEnd = 0;
Chris@0: }
Chris@0: 
Chris@0: void
Chris@461: Colour3DPlotLayer::cacheInvalid(size_t startFrame, size_t endFrame)
Chris@0: {
Chris@461:     if (!m_cache) return;
Chris@461: 
Chris@461:     size_t modelResolution = m_model->getResolution();
Chris@461:     size_t start = startFrame / modelResolution;
Chris@461:     size_t end = endFrame / modelResolution + 1;
Chris@461:     if (m_cacheValidStart < end) m_cacheValidStart = end;
Chris@461:     if (m_cacheValidEnd > start) m_cacheValidEnd = start;
Chris@461:     if (m_cacheValidStart > m_cacheValidEnd) m_cacheValidEnd = m_cacheValidStart;
Chris@461: }
Chris@461: 
Chris@461: void
Chris@461: Colour3DPlotLayer::modelChanged()
Chris@461: {
Chris@461:     if (!m_colourScaleSet && m_colourScale == LinearScale) {
Chris@461:         if (m_model) {
Chris@461:             if (m_model->shouldUseLogValueScale()) {
Chris@461:                 setColourScale(LogScale);
Chris@461:             } else {
Chris@461:                 m_colourScaleSet = true;
Chris@461:             }
Chris@461:         }
Chris@461:     }
Chris@0:     cacheInvalid();
Chris@0: }
Chris@0: 
Chris@461: void
Chris@461: Colour3DPlotLayer::modelChanged(size_t startFrame, size_t endFrame)
Chris@461: {
Chris@461:     if (!m_colourScaleSet && m_colourScale == LinearScale) {
Chris@461:         if (m_model && m_model->getWidth() > 50) {
Chris@461:             if (m_model->shouldUseLogValueScale()) {
Chris@461:                 setColourScale(LogScale);
Chris@461:             } else {
Chris@461:                 m_colourScaleSet = true;
Chris@461:             }
Chris@461:         }
Chris@461:     }
Chris@461:     cacheInvalid(startFrame, endFrame);
Chris@461: }
Chris@461: 
Chris@159: Layer::PropertyList
Chris@159: Colour3DPlotLayer::getProperties() const
Chris@159: {
Chris@159:     PropertyList list;
Chris@197:     list.push_back("Colour");
Chris@159:     list.push_back("Colour Scale");
Chris@197:     list.push_back("Normalize Columns");
Chris@197:     list.push_back("Normalize Visible Area");
Chris@357:     list.push_back("Invert Vertical Scale");
Chris@159:     return list;
Chris@159: }
Chris@159: 
Chris@159: QString
Chris@159: Colour3DPlotLayer::getPropertyLabel(const PropertyName &name) const
Chris@159: {
Chris@197:     if (name == "Colour") return tr("Colour");
Chris@197:     if (name == "Colour Scale") return tr("Scale");
Chris@197:     if (name == "Normalize Columns") return tr("Normalize Columns");
Chris@197:     if (name == "Normalize Visible Area") return tr("Normalize Visible Area");
Chris@357:     if (name == "Invert Vertical Scale") return tr("Invert Vertical Scale");
Chris@159:     return "";
Chris@159: }
Chris@159: 
Chris@346: QString
Chris@346: Colour3DPlotLayer::getPropertyIconName(const PropertyName &name) const
Chris@346: {
Chris@346:     if (name == "Normalize Columns") return "normalise-columns";
Chris@346:     if (name == "Normalize Visible Area") return "normalise";
Chris@357:     if (name == "Invert Vertical Scale") return "invert-vertical";
Chris@346:     return "";
Chris@346: }
Chris@346: 
Chris@159: Layer::PropertyType
Chris@159: Colour3DPlotLayer::getPropertyType(const PropertyName &name) const
Chris@159: {
Chris@197:     if (name == "Normalize Columns") return ToggleProperty;
Chris@197:     if (name == "Normalize Visible Area") return ToggleProperty;
Chris@357:     if (name == "Invert Vertical Scale") return ToggleProperty;
Chris@159:     return ValueProperty;
Chris@159: }
Chris@159: 
Chris@159: QString
Chris@159: Colour3DPlotLayer::getPropertyGroupName(const PropertyName &name) const
Chris@159: {
Chris@197:     if (name == "Normalize Columns" ||
Chris@197:         name == "Normalize Visible Area" ||
Chris@357:         name == "Invert Vertical Scale" ||
Chris@197: 	name == "Colour Scale") return tr("Scale");
Chris@159:     return QString();
Chris@159: }
Chris@159: 
Chris@159: int
Chris@159: Colour3DPlotLayer::getPropertyRangeAndValue(const PropertyName &name,
Chris@216:                                             int *min, int *max, int *deflt) const
Chris@159: {
Chris@216:     int val = 0;
Chris@159: 
Chris@216:     int garbage0, garbage1, garbage2;
Chris@159:     if (!min) min = &garbage0;
Chris@159:     if (!max) max = &garbage1;
Chris@216:     if (!deflt) deflt = &garbage2;
Chris@159: 
Chris@159:     if (name == "Colour Scale") {
Chris@159: 
Chris@159: 	*min = 0;
Chris@197: 	*max = 2;
Chris@216:         *deflt = (int)LinearScale;
Chris@159: 
Chris@216: 	val = (int)m_colourScale;
Chris@159: 
Chris@197:     } else if (name == "Colour") {
Chris@197: 
Chris@197: 	*min = 0;
Chris@197: 	*max = ColourMapper::getColourMapCount() - 1;
Chris@216:         *deflt = 0;
Chris@197: 
Chris@216: 	val = m_colourMap;
Chris@197: 
Chris@197:     } else if (name == "Normalize Columns") {
Chris@197: 	
Chris@216:         *deflt = 0;
Chris@216: 	val = (m_normalizeColumns ? 1 : 0);
Chris@197: 
Chris@197:     } else if (name == "Normalize Visible Area") {
Chris@197: 	
Chris@216:         *deflt = 0;
Chris@216: 	val = (m_normalizeVisibleArea ? 1 : 0);
Chris@197: 
Chris@357:     } else if (name == "Invert Vertical Scale") {
Chris@357: 	
Chris@357:         *deflt = 0;
Chris@357: 	val = (m_invertVertical ? 1 : 0);
Chris@357: 
Chris@159:     } else {
Chris@216: 	val = Layer::getPropertyRangeAndValue(name, min, max, deflt);
Chris@159:     }
Chris@159: 
Chris@216:     return val;
Chris@159: }
Chris@159: 
Chris@159: QString
Chris@159: Colour3DPlotLayer::getPropertyValueLabel(const PropertyName &name,
Chris@159: 				    int value) const
Chris@159: {
Chris@197:     if (name == "Colour") {
Chris@197:         return ColourMapper::getColourMapName(value);
Chris@197:     }
Chris@159:     if (name == "Colour Scale") {
Chris@159: 	switch (value) {
Chris@159: 	default:
Chris@198: 	case 0: return tr("Linear");
Chris@198: 	case 1: return tr("Log");
Chris@198: 	case 2: return tr("+/-1");
Chris@159: 	}
Chris@159:     }
Chris@159:     return tr("<unknown>");
Chris@159: }
Chris@159: 
Chris@159: void
Chris@159: Colour3DPlotLayer::setProperty(const PropertyName &name, int value)
Chris@159: {
Chris@159:     if (name == "Colour Scale") {
Chris@159: 	switch (value) {
Chris@159: 	default:
Chris@159: 	case 0: setColourScale(LinearScale); break;
Chris@197: 	case 1: setColourScale(LogScale); break;
Chris@197: 	case 2: setColourScale(PlusMinusOneScale); break;
Chris@159: 	}
Chris@197:     } else if (name == "Colour") {
Chris@197:         setColourMap(value);
Chris@197:     } else if (name == "Normalize Columns") {
Chris@197: 	setNormalizeColumns(value ? true : false);
Chris@197:     } else if (name == "Normalize Visible Area") {
Chris@197: 	setNormalizeVisibleArea(value ? true : false);
Chris@357:     } else if (name == "Invert Vertical Scale") {
Chris@357: 	setInvertVertical(value ? true : false);
Chris@159:     }
Chris@159: }
Chris@159: 
Chris@159: void
Chris@159: Colour3DPlotLayer::setColourScale(ColourScale scale)
Chris@159: {
Chris@159:     if (m_colourScale == scale) return;
Chris@159:     m_colourScale = scale;
Chris@461:     m_colourScaleSet = true;
Chris@159:     cacheInvalid();
Chris@159:     emit layerParametersChanged();
Chris@159: }
Chris@159: 
Chris@197: void
Chris@197: Colour3DPlotLayer::setColourMap(int map)
Chris@197: {
Chris@197:     if (m_colourMap == map) return;
Chris@197:     m_colourMap = map;
Chris@197:     cacheInvalid();
Chris@197:     emit layerParametersChanged();
Chris@197: }
Chris@197: 
Chris@197: void
Chris@197: Colour3DPlotLayer::setNormalizeColumns(bool n)
Chris@197: {
Chris@197:     if (m_normalizeColumns == n) return;
Chris@197:     m_normalizeColumns = n;
Chris@197:     cacheInvalid();
Chris@197:     emit layerParametersChanged();
Chris@197: }
Chris@197: 
Chris@197: bool
Chris@197: Colour3DPlotLayer::getNormalizeColumns() const
Chris@197: {
Chris@197:     return m_normalizeColumns;
Chris@197: }
Chris@197: 
Chris@197: void
Chris@197: Colour3DPlotLayer::setNormalizeVisibleArea(bool n)
Chris@197: {
Chris@197:     if (m_normalizeVisibleArea == n) return;
Chris@197:     m_normalizeVisibleArea = n;
Chris@197:     cacheInvalid();
Chris@197:     emit layerParametersChanged();
Chris@197: }
Chris@197: 
Chris@197: bool
Chris@197: Colour3DPlotLayer::getNormalizeVisibleArea() const
Chris@197: {
Chris@197:     return m_normalizeVisibleArea;
Chris@197: }
Chris@197: 
Chris@357: void
Chris@357: Colour3DPlotLayer::setInvertVertical(bool n)
Chris@357: {
Chris@357:     if (m_invertVertical == n) return;
Chris@357:     m_invertVertical = n;
Chris@357:     cacheInvalid();
Chris@357:     emit layerParametersChanged();
Chris@357: }
Chris@357: 
Chris@357: bool
Chris@357: Colour3DPlotLayer::getInvertVertical() const
Chris@357: {
Chris@357:     return m_invertVertical;
Chris@357: }
Chris@357: 
Chris@25: bool
Chris@44: Colour3DPlotLayer::isLayerScrollable(const View *v) const
Chris@25: {
Chris@197:     if (m_normalizeVisibleArea) return false;
Chris@25:     QPoint discard;
Chris@44:     return !v->shouldIlluminateLocalFeatures(this, discard);
Chris@25: }
Chris@25: 
Chris@444: bool
Chris@444: Colour3DPlotLayer::getValueExtents(float &min, float &max,
Chris@444:                                    bool &logarithmic, QString &unit) const
Chris@444: {
Chris@444:     if (!m_model) return false;
Chris@444: 
Chris@444:     min = 0;
Chris@444:     max = m_model->getHeight();
Chris@444: 
Chris@444:     logarithmic = false;
Chris@444:     unit = "";
Chris@444: 
Chris@444:     return true;
Chris@444: }
Chris@444: 
Chris@444: bool
Chris@444: Colour3DPlotLayer::getDisplayExtents(float &min, float &max) const
Chris@444: {
Chris@444:     if (!m_model) return false;
Chris@444: 
Chris@444:     min = m_miny;
Chris@444:     max = m_maxy;
Chris@444:     if (max <= min) {
Chris@444:         min = 0;
Chris@444:         max = m_model->getHeight();
Chris@444:     }
Chris@444:     if (min < 0) min = 0;
Chris@444:     if (max > m_model->getHeight()) max = m_model->getHeight();
Chris@444: 
Chris@444:     return true;
Chris@444: }
Chris@444: 
Chris@444: bool
Chris@444: Colour3DPlotLayer::setDisplayExtents(float min, float max)
Chris@444: {
Chris@444:     if (!m_model) return false;
Chris@444: 
Chris@444:     m_miny = lrintf(min);
Chris@444:     m_maxy = lrintf(max);
Chris@444:     
Chris@444:     emit layerParametersChanged();
Chris@444:     return true;
Chris@444: }
Chris@444: 
Chris@444: int
Chris@444: Colour3DPlotLayer::getVerticalZoomSteps(int &defaultStep) const
Chris@444: {
Chris@444:     if (!m_model) return 0;
Chris@444: 
Chris@444:     defaultStep = 0;
Chris@444:     int h = m_model->getHeight();
Chris@444:     return h;
Chris@444: }
Chris@444: 
Chris@444: int
Chris@444: Colour3DPlotLayer::getCurrentVerticalZoomStep() const
Chris@444: {
Chris@444:     if (!m_model) return 0;
Chris@444: 
Chris@444:     float min, max;
Chris@444:     getDisplayExtents(min, max);
Chris@444:     return m_model->getHeight() - lrintf(max - min);
Chris@444: }
Chris@444: 
Chris@444: void
Chris@444: Colour3DPlotLayer::setVerticalZoomStep(int step)
Chris@444: {
Chris@444:     if (!m_model) return;
Chris@444: 
Chris@445: //    std::cerr << "Colour3DPlotLayer::setVerticalZoomStep(" <<step <<"): before: miny = " << m_miny << ", maxy = " << m_maxy << std::endl;
Chris@444: 
Chris@444:     int dist = m_model->getHeight() - step;
Chris@444:     if (dist < 1) dist = 1;
Chris@444:     float centre = m_miny + (float(m_maxy) - float(m_miny)) / 2.f;
Chris@444:     m_miny = lrintf(centre - float(dist)/2);
Chris@444:     if (m_miny < 0) m_miny = 0;
Chris@444:     m_maxy = m_miny + dist;
Chris@444:     if (m_maxy > m_model->getHeight()) m_maxy = m_model->getHeight();
Chris@444: 
Chris@445: //    std::cerr << "Colour3DPlotLayer::setVerticalZoomStep(" <<step <<"):  after: miny = " << m_miny << ", maxy = " << m_maxy << std::endl;
Chris@444:     
Chris@444:     emit layerParametersChanged();
Chris@444: }
Chris@444: 
Chris@444: RangeMapper *
Chris@444: Colour3DPlotLayer::getNewVerticalZoomRangeMapper() const
Chris@444: {
Chris@444:     if (!m_model) return 0;
Chris@444: 
Chris@444:     return new LinearRangeMapper(0, m_model->getHeight(),
Chris@444:                                  0, m_model->getHeight(), "");
Chris@444: }
Chris@444: 
Chris@25: QString
Chris@44: Colour3DPlotLayer::getFeatureDescription(View *v, QPoint &pos) const
Chris@25: {
Chris@25:     if (!m_model) return "";
Chris@25: 
Chris@25:     int x = pos.x();
Chris@25:     int y = pos.y();
Chris@25: 
Chris@25:     size_t modelStart = m_model->getStartFrame();
Chris@130:     size_t modelResolution = m_model->getResolution();
Chris@25: 
Chris@159:     float srRatio =
Chris@159:         float(v->getViewManager()->getMainModelSampleRate()) /
Chris@159:         float(m_model->getSampleRate());
Chris@159: 
Chris@160:     int sx0 = int((v->getFrameForX(x) / srRatio - long(modelStart)) /
Chris@160:                   long(modelResolution));
Chris@25: 
Chris@160:     int f0 = sx0 * modelResolution;
Chris@160:     int f1 =  f0 + modelResolution;
Chris@160: 
Chris@447:     int sh = m_model->getHeight();
Chris@447: 
Chris@447:     int symin = m_miny;
Chris@447:     int symax = m_maxy;
Chris@447:     if (symax <= symin) {
Chris@447:         symin = 0;
Chris@447:         symax = sh;
Chris@447:     }
Chris@447:     if (symin < 0) symin = 0;
Chris@447:     if (symax > sh) symax = sh;
Chris@447: 
Chris@447:     float binHeight = float(v->height()) / (symax - symin);
Chris@447:     int sy = int((v->height() - y) / binHeight) + symin;
Chris@25: 
Chris@357:     if (m_invertVertical) sy = m_model->getHeight() - sy - 1;
Chris@357: 
Chris@160:     float value = m_model->getValueAt(sx0, sy);
Chris@159: 
Chris@159: //    std::cerr << "bin value (" << sx0 << "," << sy << ") is " << value << std::endl;
Chris@25:     
Chris@25:     QString binName = m_model->getBinName(sy);
Chris@25:     if (binName == "") binName = QString("[%1]").arg(sy + 1);
Chris@25:     else binName = QString("%1 [%2]").arg(binName).arg(sy + 1);
Chris@25: 
Chris@25:     QString text = tr("Time:\t%1 - %2\nBin:\t%3\nValue:\t%4")
Chris@160: 	.arg(RealTime::frame2RealTime(f0, m_model->getSampleRate())
Chris@25: 	     .toText(true).c_str())
Chris@160: 	.arg(RealTime::frame2RealTime(f1, m_model->getSampleRate())
Chris@25: 	     .toText(true).c_str())
Chris@25: 	.arg(binName)
Chris@25: 	.arg(value);
Chris@25: 
Chris@25:     return text;
Chris@25: }
Chris@25: 
Chris@25: int
Chris@248: Colour3DPlotLayer::getColourScaleWidth(QPainter &) const
Chris@159: {
Chris@159:     int cw = 20;
Chris@159:     return cw;
Chris@159: }
Chris@159: 
Chris@159: int
Chris@248: Colour3DPlotLayer::getVerticalScaleWidth(View *, QPainter &paint) const
Chris@25: {
Chris@25:     if (!m_model) return 0;
Chris@25: 
Chris@160:     QString sampleText = QString("[%1]").arg(m_model->getHeight());
Chris@25:     int tw = paint.fontMetrics().width(sampleText);
Chris@98:     bool another = false;
Chris@25: 
Chris@160:     for (size_t i = 0; i < m_model->getHeight(); ++i) {
Chris@25: 	if (m_model->getBinName(i).length() > sampleText.length()) {
Chris@25: 	    sampleText = m_model->getBinName(i);
Chris@98:             another = true;
Chris@25: 	}
Chris@25:     }
Chris@98:     if (another) {
Chris@25: 	tw = std::max(tw, paint.fontMetrics().width(sampleText));
Chris@25:     }
Chris@25: 
Chris@159:     return tw + 13 + getColourScaleWidth(paint);
Chris@25: }
Chris@25: 
Chris@25: void
Chris@44: Colour3DPlotLayer::paintVerticalScale(View *v, QPainter &paint, QRect rect) const
Chris@25: {
Chris@25:     if (!m_model) return;
Chris@25: 
Chris@25:     int h = rect.height(), w = rect.width();
Chris@25: 
Chris@159:     int cw = getColourScaleWidth(paint);
Chris@159:     
Chris@159:     int ch = h - 20;
Chris@159:     if (ch > 20 && m_cache) {
Chris@159: 
Chris@447:         float min = m_model->getMinimumLevel();
Chris@447:         float max = m_model->getMaximumLevel();
Chris@447: 
Chris@447:         float mmin = min;
Chris@447:         float mmax = max;
Chris@447: 
Chris@447:         if (m_colourScale == LogScale) {
Chris@447:             LogRange::mapRange(mmin, mmax);
Chris@447:         } else if (m_colourScale == PlusMinusOneScale) {
Chris@447:             mmin = -1.f;
Chris@447:             mmax = 1.f;
Chris@447:         }
Chris@447:     
Chris@447:         if (max == min) max = min + 1.0;
Chris@447:     
Chris@287:         paint.setPen(v->getForeground());
Chris@447:         paint.drawRect(4, 10, cw - 8, ch+1);
Chris@159: 
Chris@446:         for (int y = 0; y < ch; ++y) {
Chris@447:             float value = ((max - min) * (ch - y - 1)) / ch + min;
Chris@447:             if (m_colourScale == LogScale) {
Chris@447:                 value = LogRange::map(value);
Chris@447:             }
Chris@447:             int pixel = int(((value - mmin) * 256) / (mmax - mmin));
Chris@447:             QRgb c = m_cache->color(pixel);
Chris@447: //            QRgb c = m_cache->color(((ch - y) * 255) / ch);
Chris@159:             paint.setPen(QColor(qRed(c), qGreen(c), qBlue(c)));
Chris@159:             paint.drawLine(5, 11 + y, cw - 5, 11 + y);
Chris@159:         }
Chris@446: 
Chris@446:         QString minstr = QString("%1").arg(min);
Chris@446:         QString maxstr = QString("%1").arg(max);
Chris@446:         
Chris@446:         paint.save();
Chris@446: 
Chris@446:         QFont font = paint.font();
Chris@446:         font.setPixelSize(10);
Chris@446:         paint.setFont(font);
Chris@446: 
Chris@446:         int msw = paint.fontMetrics().width(maxstr);
Chris@446: 
Chris@446:         QMatrix m;
Chris@446:         m.translate(cw - 6, ch + 10);
Chris@446:         m.rotate(-90);
Chris@446: 
Chris@446:         paint.setWorldMatrix(m);
Chris@446: 
Chris@446:         v->drawVisibleText(paint, 2, 0, minstr, View::OutlinedText);
Chris@446: 
Chris@446:         m.translate(ch - msw - 2, 0);
Chris@446:         paint.setWorldMatrix(m);
Chris@446: 
Chris@446:         v->drawVisibleText(paint, 0, 0, maxstr, View::OutlinedText);
Chris@446: 
Chris@446:         paint.restore();
Chris@159:     }
Chris@159: 
Chris@287:     paint.setPen(v->getForeground());
Chris@159: 
Chris@445:     int sh = m_model->getHeight();
Chris@445: 
Chris@445:     int symin = m_miny;
Chris@445:     int symax = m_maxy;
Chris@445:     if (symax <= symin) {
Chris@445:         symin = 0;
Chris@445:         symax = sh;
Chris@445:     }
Chris@445:     if (symin < 0) symin = 0;
Chris@445:     if (symax > sh) symax = sh;
Chris@445: 
Chris@456:     float binHeight = float(v->height()) / (symax - symin);
Chris@456: 
Chris@456:     paint.save();
Chris@456: 
Chris@456:     QFont tf = paint.font();
Chris@456:     if (paint.fontMetrics().height() >= binHeight) {
Chris@457:         tf.setPixelSize(binHeight > 7 ? binHeight - 2 : 5);
Chris@456:         paint.setFont(tf);
Chris@456:     }
Chris@456: 
Chris@98:     int count = v->height() / paint.fontMetrics().height();
Chris@445:     int step = (symax - symin) / count;
Chris@98:     if (step == 0) step = 1;
Chris@25: 
Chris@445:     for (size_t i = symin; i < symax; ++i) {
Chris@25: 
Chris@357:         size_t idx = i;
Chris@357:         if (m_invertVertical) idx = m_model->getHeight() - idx - 1;
Chris@357: 
Chris@357:         if ((idx % step) != 0) continue;
Chris@98: 
Chris@445: 	int y0 = int(v->height() - ((i - symin) * binHeight) - 1);
Chris@25: 	
Chris@357: 	QString text = m_model->getBinName(idx);
Chris@357: 	if (text == "") text = QString("[%1]").arg(idx + 1);
Chris@25: 
Chris@159: 	paint.drawLine(cw, y0, w, y0);
Chris@25: 
Chris@457:         if (step > 1) {
Chris@457:             paint.drawLine(w - 1, y0 - (step * binHeight) + 1,
Chris@457:                            w - 1, y0 - binHeight - 1);
Chris@457:             paint.drawLine(w - 2, y0 - (step * binHeight) + 1,
Chris@457:                            w - 2, y0 - binHeight - 2);
Chris@457:         }
Chris@457: 
Chris@248: 	int cy = int(y0 - (step * binHeight)/2);
Chris@25: 	int ty = cy + paint.fontMetrics().ascent()/2;
Chris@25: 
Chris@159: 	paint.drawText(cw + 5, ty, text);
Chris@25:     }
Chris@456: 
Chris@456:     paint.restore();
Chris@25: }
Chris@25: 
Chris@0: void
Chris@197: Colour3DPlotLayer::getColumn(size_t col,
Chris@197:                              DenseThreeDimensionalModel::Column &values) const
Chris@197: {
Chris@197:     m_model->getColumn(col, values);
Chris@197: 
Chris@461:     if (!m_normalizeColumns) return;
Chris@461: 
Chris@224:     float colMax = 0.f, colMin = 0.f;
Chris@461:     float min = 0.f, max = 0.f;
Chris@197: 
Chris@461:     min = m_model->getMinimumLevel();
Chris@461:     max = m_model->getMaximumLevel();
Chris@461: 
Chris@461:     for (size_t y = 0; y < values.size(); ++y) {
Chris@461:         if (y == 0 || values[y] > colMax) colMax = values[y];
Chris@461:         if (y == 0 || values[y] < colMin) colMin = values[y];
Chris@197:     }
Chris@461:     if (colMin == colMax) colMax = colMin + 1;
Chris@197:     
Chris@197:     for (size_t y = 0; y < values.size(); ++y) {
Chris@461:     
Chris@461:         float value = values[y];
Chris@461:         float norm = (value - colMin) / (colMax - colMin);
Chris@461:         value = min + (max - min) * norm;
Chris@197: 
Chris@197:         values[y] = value;
Chris@197:     }    
Chris@197: }
Chris@197:     
Chris@197: void
Chris@197: Colour3DPlotLayer::fillCache(size_t firstBin, size_t lastBin) const
Chris@197: {
Chris@197:     size_t modelStart = m_model->getStartFrame();
Chris@197:     size_t modelEnd = m_model->getEndFrame();
Chris@197:     size_t modelResolution = m_model->getResolution();
Chris@197: 
Chris@224: //    std::cerr << "Colour3DPlotLayer::fillCache: " << firstBin << " -> " << lastBin << std::endl;
Chris@197: 
Chris@461:     size_t modelStartBin = modelStart / modelResolution;
Chris@461:     size_t modelEndBin = modelEnd / modelResolution;
Chris@461: 
Chris@461:     size_t cacheWidth = modelEndBin - modelStartBin + 1;
Chris@461:     size_t cacheHeight = m_model->getHeight();
Chris@461: 
Chris@461:     if (m_cache && (m_cache->height() != int(cacheHeight))) {
Chris@461:         delete m_cache;
Chris@461:         m_cache = 0;
Chris@461:     } 
Chris@461: 
Chris@461:     if (m_cache && (m_cache->width() != int(cacheWidth))) {
Chris@461:         QImage *newCache = new QImage(m_cache->copy(0, 0, cacheWidth, cacheHeight));
Chris@461:         delete m_cache;
Chris@461:         m_cache = newCache;
Chris@197:     }
Chris@197: 
Chris@461:     if (!m_cache) {
Chris@461:         m_cache = new QImage(cacheWidth, cacheHeight, QImage::Format_Indexed8);
Chris@461:         m_cache->setNumColors(256);
Chris@461:         m_cacheValidStart = 0;
Chris@461:         m_cacheValidEnd = 0;
Chris@197:     }
Chris@197: 
Chris@461:     if (m_cacheValidStart <= firstBin && m_cacheValidEnd >= lastBin) {
Chris@461:         return;
Chris@461:     }
Chris@461:     
Chris@461:     size_t fillStart = firstBin;
Chris@461:     size_t fillEnd = lastBin;
Chris@197: 
Chris@461:     if (fillStart < modelStartBin) fillStart = modelStartBin;
Chris@461:     if (fillStart > modelEndBin) fillStart = modelEndBin;
Chris@461:     if (fillEnd < modelStartBin) fillEnd = modelStartBin;
Chris@461:     if (fillEnd > modelEndBin) fillEnd = modelEndBin;
Chris@197: 
Chris@461:     bool normalizeVisible = (m_normalizeVisibleArea && !m_normalizeColumns);
Chris@197: 
Chris@461:     if (!normalizeVisible && (m_cacheValidStart < m_cacheValidEnd)) {
Chris@461:         
Chris@461:         if (m_cacheValidEnd < fillStart) {
Chris@461:             fillStart = m_cacheValidEnd + 1;
Chris@461:         }
Chris@461:         if (m_cacheValidStart > fillEnd) {
Chris@461:             fillEnd = m_cacheValidStart - 1;
Chris@461:         }
Chris@461:         
Chris@461:         m_cacheValidStart = std::min(fillStart, m_cacheValidStart);
Chris@461:         m_cacheValidEnd = std::max(fillEnd, m_cacheValidEnd);
Chris@461: 
Chris@461:     } else {
Chris@461: 
Chris@461:         // the only valid area, ever, is the currently visible one
Chris@461: 
Chris@461:         m_cacheValidStart = fillStart;
Chris@461:         m_cacheValidEnd = fillEnd;
Chris@461:     }
Chris@461: 
Chris@461: //    std::cerr << "Cache size " << cacheWidth << "x" << cacheHeight << " will be valid from " << m_cacheValidStart << " to " << m_cacheValidEnd << std::endl;
Chris@461: 
Chris@197:     DenseThreeDimensionalModel::Column values;
Chris@461:     values.reserve(cacheHeight);
Chris@197: 
Chris@197:     float min = m_model->getMinimumLevel();
Chris@197:     float max = m_model->getMaximumLevel();
Chris@197: 
Chris@197:     if (m_colourScale == LogScale) {
Chris@197:         LogRange::mapRange(min, max);
Chris@197:     } else if (m_colourScale == PlusMinusOneScale) {
Chris@197:         min = -1.f;
Chris@197:         max = 1.f;
Chris@197:     }
Chris@197:     
Chris@197:     if (max == min) max = min + 1.0;
Chris@197:     
Chris@197:     ColourMapper mapper(m_colourMap, 0.f, 255.f);
Chris@197:     
Chris@197:     for (int index = 0; index < 256; ++index) {
Chris@197:         QColor colour = mapper.map(index);
Chris@197:         m_cache->setColor(index, qRgb(colour.red(), colour.green(), colour.blue()));
Chris@197:     }
Chris@197:     
Chris@461: //    m_cache->fill(0);
Chris@197: 
Chris@224:     float visibleMax = 0.f, visibleMin = 0.f;
Chris@197: 
Chris@461:     if (normalizeVisible) {
Chris@197:         
Chris@461:         for (size_t c = fillStart; c <= fillEnd; ++c) {
Chris@197: 	
Chris@197:             values.clear();
Chris@197:             getColumn(c, values);
Chris@197: 
Chris@224:             float colMax = 0.f, colMin = 0.f;
Chris@197: 
Chris@461:             for (size_t y = 0; y < cacheHeight; ++y) {
Chris@197:                 if (y >= values.size()) break;
Chris@197:                 if (y == 0 || values[y] > colMax) colMax = values[y];
Chris@224:                 if (y == 0 || values[y] < colMin) colMin = values[y];
Chris@197:             }
Chris@197: 
Chris@461:             if (c == fillStart || colMax > visibleMax) visibleMax = colMax;
Chris@461:             if (c == fillStart || colMin < visibleMin) visibleMin = colMin;
Chris@461:         }
Chris@461: 
Chris@461:         if (m_colourScale == LogScale) {
Chris@461:             visibleMin = LogRange::map(visibleMin);
Chris@461:             visibleMax = LogRange::map(visibleMax);
Chris@461:             if (visibleMin > visibleMax) std::swap(visibleMin, visibleMax);
Chris@197:         }
Chris@197:     }
Chris@197:     
Chris@224:     if (visibleMin == visibleMax) visibleMax = visibleMin + 1;
Chris@224: 
Chris@461:     for (size_t c = fillStart; c <= fillEnd; ++c) {
Chris@197: 	
Chris@197:         values.clear();
Chris@197:         getColumn(c, values);
Chris@197: 
Chris@461:         for (size_t y = 0; y < cacheHeight; ++y) {
Chris@197: 
Chris@197:             float value = min;
Chris@197:             if (y < values.size()) {
Chris@197:                 value = values[y];
Chris@197:             }
Chris@224: 
Chris@224:             if (m_colourScale == LogScale) {
Chris@224:                 value = LogRange::map(value);
Chris@197:             }
Chris@461:             
Chris@461:             if (normalizeVisible) {
Chris@461:                 float norm = (value - visibleMin) / (visibleMax - visibleMin);
Chris@461:                 value = min + (max - min) * norm;
Chris@461:             }
Chris@197: 
Chris@197:             int pixel = int(((value - min) * 256) / (max - min));
Chris@197:             if (pixel < 0) pixel = 0;
Chris@197:             if (pixel > 255) pixel = 255;
Chris@197: 
Chris@357:             if (m_invertVertical) {
Chris@461:                 m_cache->setPixel(c, cacheHeight - y - 1, pixel);
Chris@357:             } else {
Chris@461:                 m_cache->setPixel(c, y, pixel);
Chris@357:             }
Chris@197:         }
Chris@197:     }
Chris@197: }
Chris@197: 
Chris@197: void
Chris@44: Colour3DPlotLayer::paint(View *v, QPainter &paint, QRect rect) const
Chris@0: {
Chris@443: /*!!!
Chris@443:     if (m_model) {
Chris@443:         std::cerr << "Colour3DPlotLayer::paint: model says shouldUseLogValueScale = " << m_model->shouldUseLogValueScale() << std::endl;
Chris@443:     }
Chris@443: */
Chris@0: //    Profiler profiler("Colour3DPlotLayer::paint");
Chris@125: #ifdef DEBUG_COLOUR_3D_PLOT_LAYER_PAINT
Chris@125:     std::cerr << "Colour3DPlotLayer::paint(): m_model is " << m_model << ", zoom level is " << v->getZoomLevel() << std::endl;
Chris@125: #endif
Chris@0: 
Chris@0:     int completion = 0;
Chris@0:     if (!m_model || !m_model->isOK() || !m_model->isReady(&completion)) {
Chris@0: 	if (completion > 0) {
Chris@44: 	    paint.fillRect(0, 10, v->width() * completion / 100,
Chris@0: 			   10, QColor(120, 120, 120));
Chris@0: 	}
Chris@0: 	return;
Chris@0:     }
Chris@0: 
Chris@197:     if (m_normalizeVisibleArea && !m_normalizeColumns) rect = v->rect();
Chris@197: 
Chris@0:     size_t modelStart = m_model->getStartFrame();
Chris@0:     size_t modelEnd = m_model->getEndFrame();
Chris@130:     size_t modelResolution = m_model->getResolution();
Chris@0: 
Chris@197:     // The cache is from the model's start frame to the model's end
Chris@197:     // frame at the model's window increment frames per pixel.  We
Chris@197:     // want to draw from our start frame + x0 * zoomLevel to our start
Chris@197:     // frame + x1 * zoomLevel at zoomLevel frames per pixel.
Chris@12: 
Chris@197:     //  We have quite different paint mechanisms for rendering "large"
Chris@197:     //  bins (more than one bin per pixel in both directions) and
Chris@197:     //  "small".  This is "large"; see paintDense below for "small".
Chris@12: 
Chris@197:     int x0 = rect.left();
Chris@197:     int x1 = rect.right() + 1;
Chris@12: 
Chris@197:     int h = v->height();
Chris@0: 
Chris@197:     float srRatio =
Chris@197:         float(v->getViewManager()->getMainModelSampleRate()) /
Chris@197:         float(m_model->getSampleRate());
Chris@0: 
Chris@197:     int sx0 = int((v->getFrameForX(x0) / srRatio - long(modelStart))
Chris@197:                   / long(modelResolution));
Chris@197:     int sx1 = int((v->getFrameForX(x1) / srRatio - long(modelStart))
Chris@197:                   / long(modelResolution));
Chris@197:     int sh = m_model->getHeight();
Chris@159: 
Chris@444:     int symin = m_miny;
Chris@444:     int symax = m_maxy;
Chris@444:     if (symax <= symin) {
Chris@444:         symin = 0;
Chris@444:         symax = sh;
Chris@444:     }
Chris@444:     if (symin < 0) symin = 0;
Chris@444:     if (symax > sh) symax = sh;
Chris@444: 
Chris@197:     if (sx0 > 0) --sx0;
Chris@197:     fillCache(sx0 < 0 ? 0 : sx0,
Chris@197:               sx1 < 0 ? 0 : sx1);
Chris@0: 
Chris@351: #ifdef DEBUG_COLOUR_3D_PLOT_LAYER_PAINT
Chris@351:     std::cerr << "Colour3DPlotLayer::paint: height = "<< m_model->getHeight() << ", modelStart = " << modelStart << ", resolution = " << modelResolution << ", model rate = " << m_model->getSampleRate() << std::endl;
Chris@351: #endif
Chris@351: 
Chris@248:     if (int(m_model->getHeight()) >= v->height() ||
Chris@348:         int(modelResolution * m_model->getSampleRate()) < v->getZoomLevel() / 2) {
Chris@347: #ifdef DEBUG_COLOUR_3D_PLOT_LAYER_PAINT
Chris@351:         std::cerr << "calling paintDense" << std::endl;
Chris@347: #endif
Chris@98:         paintDense(v, paint, rect);
Chris@98:         return;
Chris@98:     }
Chris@98: 
Chris@125: #ifdef DEBUG_COLOUR_3D_PLOT_LAYER_PAINT
Chris@347:     std::cerr << "Colour3DPlotLayer::paint: w " << x1-x0 << ", h " << h << ", sx0 " << sx0 << ", sx1 " << sx1 << ", sw " << sx1-sx0 << ", sh " << sh << std::endl;
Chris@130:     std::cerr << "Colour3DPlotLayer: sample rate is " << m_model->getSampleRate() << ", resolution " << m_model->getResolution() << std::endl;
Chris@125: #endif
Chris@0: 
Chris@25:     QPoint illuminatePos;
Chris@44:     bool illuminate = v->shouldIlluminateLocalFeatures(this, illuminatePos);
Chris@54:     char labelbuf[10];
Chris@25: 
Chris@197:     for (int sx = sx0; sx <= sx1; ++sx) {
Chris@0: 
Chris@130: 	int fx = sx * int(modelResolution);
Chris@0: 
Chris@351: 	if (fx + int(modelResolution) <= int(modelStart) ||
Chris@0: 	    fx > int(modelEnd)) continue;
Chris@0: 
Chris@248:         int rx0 = v->getXForFrame(int((fx + int(modelStart)) * srRatio));
Chris@248: 	int rx1 = v->getXForFrame(int((fx + int(modelStart) + int(modelResolution) + 1) * srRatio));
Chris@54: 
Chris@159: 	int rw = rx1 - rx0;
Chris@159: 	if (rw < 1) rw = 1;
Chris@54: 
Chris@159: 	bool showLabel = (rw > 10 &&
Chris@159: 			  paint.fontMetrics().width("0.000000") < rw - 3 &&
Chris@54: 			  paint.fontMetrics().height() < (h / sh));
Chris@98:         
Chris@444: 	for (int sy = symin; sy < symax; ++sy) {
Chris@0: 
Chris@444: 	    int ry0 = h - ((sy - symin) * h) / (symax - symin) - 1;
Chris@0: 	    QRgb pixel = qRgb(255, 255, 255);
Chris@461: 	    if (sx >= 0 && sx < m_cache->width() &&
Chris@0: 		sy >= 0 && sy < m_cache->height()) {
Chris@461: 		pixel = m_cache->pixel(sx, sy);
Chris@0: 	    }
Chris@0: 
Chris@444: 	    QRect r(rx0, ry0 - h / (symax - symin) - 1,
Chris@444:                     rw, h / (symax - symin) + 1);
Chris@159: 
Chris@159:             if (rw == 1) {
Chris@159:                 paint.setPen(pixel);
Chris@159:                 paint.setBrush(Qt::NoBrush);
Chris@159:                 paint.drawLine(r.x(), r.y(), r.x(), r.y() + r.height() - 1);
Chris@159:                 continue;
Chris@159:             }
Chris@159: 
Chris@0: 	    QColor pen(255, 255, 255, 80);
Chris@0: 	    QColor brush(pixel);
Chris@159: 
Chris@159:             if (rw > 3 && r.height() > 3) {
Chris@159:                 brush.setAlpha(160);
Chris@159:             }
Chris@159: 
Chris@0: 	    paint.setPen(Qt::NoPen);
Chris@0: 	    paint.setBrush(brush);
Chris@0: 
Chris@25: 	    if (illuminate) {
Chris@25: 		if (r.contains(illuminatePos)) {
Chris@287: 		    paint.setPen(v->getForeground());
Chris@25: 		}
Chris@25: 	    }
Chris@76:             
Chris@125: #ifdef DEBUG_COLOUR_3D_PLOT_LAYER_PAINT
Chris@159:             std::cerr << "rect " << r.x() << "," << r.y() << " "
Chris@159:                       << r.width() << "x" << r.height() << std::endl;
Chris@125: #endif
Chris@25: 
Chris@25: 	    paint.drawRect(r);
Chris@0: 
Chris@54: 	    if (showLabel) {
Chris@461: 		if (sx >= 0 && sx < m_cache->width() &&
Chris@54: 		    sy >= 0 && sy < m_cache->height()) {
Chris@461: 		    float value = m_model->getValueAt(sx, sy);
Chris@54: 		    sprintf(labelbuf, "%06f", value);
Chris@54: 		    QString text(labelbuf);
Chris@287: 		    paint.setPen(v->getBackground());
Chris@54: 		    paint.drawText(rx0 + 2,
Chris@54: 				   ry0 - h / sh - 1 + 2 + paint.fontMetrics().ascent(),
Chris@54: 				   text);
Chris@0: 		}
Chris@0: 	    }
Chris@0: 	}
Chris@0:     }
Chris@98: }
Chris@0: 
Chris@98: void
Chris@98: Colour3DPlotLayer::paintDense(View *v, QPainter &paint, QRect rect) const
Chris@98: {
Chris@98:     size_t modelStart = m_model->getStartFrame();
Chris@130:     size_t modelResolution = m_model->getResolution();
Chris@0: 
Chris@159:     float srRatio =
Chris@159:         float(v->getViewManager()->getMainModelSampleRate()) /
Chris@159:         float(m_model->getSampleRate());
Chris@159: 
Chris@98:     int x0 = rect.left();
Chris@98:     int x1 = rect.right() + 1;
Chris@0: 
Chris@98:     int w = x1 - x0;
Chris@98:     int h = v->height();
Chris@160:     int sh = m_model->getHeight();
Chris@98: 
Chris@444:     int symin = m_miny;
Chris@444:     int symax = m_maxy;
Chris@444:     if (symax <= symin) {
Chris@444:         symin = 0;
Chris@444:         symax = sh;
Chris@444:     }
Chris@444:     if (symin < 0) symin = 0;
Chris@444:     if (symax > sh) symax = sh;
Chris@444: 
Chris@98:     QImage img(w, h, QImage::Format_RGB32);
Chris@98: 
Chris@98:     for (int x = x0; x < x1; ++x) {
Chris@98: 
Chris@347:         long xf = long(v->getFrameForX(x));
Chris@105:         if (xf < 0) {
Chris@105:             for (int y = 0; y < h; ++y) {
Chris@105:                 img.setPixel(x - x0, y, m_cache->color(0));
Chris@105:             }
Chris@105:             continue;
Chris@105:         }
Chris@105: 
Chris@347:         xf /= srRatio;
Chris@347: 
Chris@130:         float sx0 = (float(xf) - modelStart) / modelResolution;
Chris@159:         float sx1 = (float(v->getFrameForX(x+1) / srRatio) - modelStart) / modelResolution;
Chris@98:             
Chris@98:         int sx0i = int(sx0 + 0.001);
Chris@98:         int sx1i = int(sx1);
Chris@98: 
Chris@98:         for (int y = 0; y < h; ++y) {
Chris@98: 
Chris@444:             float sy0 = symin + (float(h - y - 1) * (symax - symin)) / h;
Chris@444:             float sy1 = symin + (float(h - y) * (symax - symin)) / h;
Chris@98:             
Chris@98:             int sy0i = int(sy0 + 0.001);
Chris@98:             int sy1i = int(sy1);
Chris@98: 
Chris@98:             float mag = 0.0, div = 0.0;
Chris@159:             int max = 0;
Chris@98: 
Chris@98:             for (int sx = sx0i; sx <= sx1i; ++sx) {
Chris@98: 
Chris@461:                 if (sx < 0 || sx >= m_cache->width()) continue;
Chris@98: 
Chris@98:                 for (int sy = sy0i; sy <= sy1i; ++sy) {
Chris@98: 
Chris@98:                     if (sy < 0 || sy >= m_cache->height()) continue;
Chris@98: 
Chris@98:                     float prop = 1.0;
Chris@98:                     if (sx == sx0i) prop *= (sx + 1) - sx0;
Chris@98:                     if (sx == sx1i) prop *= sx1 - sx;
Chris@98:                     if (sy == sy0i) prop *= (sy + 1) - sy0;
Chris@98:                     if (sy == sy1i) prop *= sy1 - sy;
Chris@98: 
Chris@461:                     mag += prop * m_cache->pixelIndex(sx, sy);
Chris@461:                     max = std::max(max, m_cache->pixelIndex(sx, sy));
Chris@98:                     div += prop;
Chris@98:                 }
Chris@98:             }
Chris@98: 
Chris@98:             if (div != 0) mag /= div;
Chris@98:             if (mag < 0) mag = 0;
Chris@98:             if (mag > 255) mag = 255;
Chris@159:             if (max < 0) max = 0;
Chris@159:             if (max > 255) max = 255;
Chris@98: 
Chris@98:             img.setPixel(x - x0, y, m_cache->color(int(mag + 0.001)));
Chris@98:         }
Chris@0:     }
Chris@0: 
Chris@98:     paint.drawImage(x0, 0, img);
Chris@0: }
Chris@0: 
Chris@28: bool
Chris@44: Colour3DPlotLayer::snapToFeatureFrame(View *v, int &frame,
Chris@28: 				      size_t &resolution,
Chris@28: 				      SnapType snap) const
Chris@24: {
Chris@24:     if (!m_model) {
Chris@44: 	return Layer::snapToFeatureFrame(v, frame, resolution, snap);
Chris@24:     }
Chris@24: 
Chris@130:     resolution = m_model->getResolution();
Chris@28:     int left = (frame / resolution) * resolution;
Chris@28:     int right = left + resolution;
Chris@28: 
Chris@28:     switch (snap) {
Chris@28:     case SnapLeft:  frame = left;  break;
Chris@28:     case SnapRight: frame = right; break;
Chris@28:     case SnapNearest:
Chris@28:     case SnapNeighbouring:
Chris@28: 	if (frame - left > right - frame) frame = right;
Chris@28: 	else frame = left;
Chris@28: 	break;
Chris@28:     }
Chris@24:     
Chris@28:     return true;
Chris@24: }
Chris@24: 
Chris@316: void
Chris@316: Colour3DPlotLayer::toXml(QTextStream &stream,
Chris@316:                          QString indent, QString extraAttributes) const
Chris@197: {
Chris@316:     QString s = QString("scale=\"%1\" "
Chris@316:                         "colourScheme=\"%2\" "
Chris@316:                         "normalizeColumns=\"%3\" "
Chris@445:                         "normalizeVisibleArea=\"%4\" "
Chris@445:                         "minY=\"%5\" "
Chris@445:                         "maxY=\"%6\" ")
Chris@197: 	.arg((int)m_colourScale)
Chris@197:         .arg(m_colourMap)
Chris@197:         .arg(m_normalizeColumns ? "true" : "false")
Chris@445:         .arg(m_normalizeVisibleArea ? "true" : "false")
Chris@445:         .arg(m_miny)
Chris@445:         .arg(m_maxy);
Chris@197: 
Chris@316:     Layer::toXml(stream, indent, extraAttributes + " " + s);
Chris@197: }
Chris@197: 
Chris@197: void
Chris@197: Colour3DPlotLayer::setProperties(const QXmlAttributes &attributes)
Chris@197: {
Chris@445:     bool ok = false, alsoOk = false;
Chris@197: 
Chris@197:     ColourScale scale = (ColourScale)attributes.value("scale").toInt(&ok);
Chris@197:     if (ok) setColourScale(scale);
Chris@197: 
Chris@197:     int colourMap = attributes.value("colourScheme").toInt(&ok);
Chris@197:     if (ok) setColourMap(colourMap);
Chris@197: 
Chris@197:     bool normalizeColumns =
Chris@197:         (attributes.value("normalizeColumns").trimmed() == "true");
Chris@197:     setNormalizeColumns(normalizeColumns);
Chris@197: 
Chris@197:     bool normalizeVisibleArea =
Chris@197:         (attributes.value("normalizeVisibleArea").trimmed() == "true");
Chris@197:     setNormalizeVisibleArea(normalizeVisibleArea);
Chris@445: 
Chris@445:     float min = attributes.value("minY").toFloat(&ok);
Chris@445:     float max = attributes.value("maxY").toFloat(&alsoOk);
Chris@445:     if (ok && alsoOk) setDisplayExtents(min, max);
Chris@197: }
Chris@197: