git.sesse.net Git - kdenlive/blob - src/vectorscope.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2010 by Simon Andreas Eugster (simon.eu@gmail.com)      *
   3  *   This file is part of kdenlive. See www.kdenlive.org.                  *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  ***************************************************************************/
  10
  11
  12 #include <QAction>
  13 #include <QColor>
  14 #include <QDebug>
  15 #include <QMouseEvent>
  16 #include <QMenu>
  17 #include <QPainter>
  18
  19 #include <QTime>
  20
  21 #include "colorplaneexport.h"
  22 #include "colortools.h"
  23 #include "renderer.h"
  24 #include "vectorscope.h"
  25 #include "vectorscopegenerator.h"
  26
  27 const float P75 = .75;
  28 const unsigned char DEFAULT_Y = 255;
  29
  30 const QPointF YUV_R(-.147,  .615);
  31 const QPointF YUV_G(-.289, -.515);
  32 const QPointF YUV_B(.437, -.100);
  33 const QPointF YUV_Cy(.147, -.615);
  34 const QPointF YUV_Mg(.289,  .515);
  35 const QPointF YUV_Yl(-.437,  .100);
  36
  37 const QPointF YPbPr_R(-.169, .5);
  38 const QPointF YPbPr_G(-.331, -.419);
  39 const QPointF YPbPr_B(.5, -.081);
  40 const QPointF YPbPr_Cy(.169, -.5);
  41 const QPointF YPbPr_Mg(.331, .419);
  42 const QPointF YPbPr_Yl(-.5, .081);
  43
  44
  45 Vectorscope::Vectorscope(Monitor *projMonitor, Monitor *clipMonitor, QWidget *parent) :
  46     AbstractScopeWidget(projMonitor, clipMonitor, true, parent),
  47     m_gain(1)
  48 {
  49     ui = new Ui::Vectorscope_UI();
  50     ui->setupUi(this);
  51
  52     m_colorTools = new ColorTools();
  53     m_colorPlaneExport = new ColorPlaneExport(this);
  54     m_vectorscopeGenerator = new VectorscopeGenerator();
  55
  56     ui->paintMode->addItem(i18n("Green 2"), QVariant(VectorscopeGenerator::PaintMode_Green2));
  57     ui->paintMode->addItem(i18n("Green"), QVariant(VectorscopeGenerator::PaintMode_Green));
  58     ui->paintMode->addItem(i18n("Black"), QVariant(VectorscopeGenerator::PaintMode_Black));
  59     ui->paintMode->addItem(i18n("Modified YUV (Chroma)"), QVariant(VectorscopeGenerator::PaintMode_Chroma));
  60     ui->paintMode->addItem(i18n("YUV"), QVariant(VectorscopeGenerator::PaintMode_YUV));
  61     ui->paintMode->addItem(i18n("Original Color"), QVariant(VectorscopeGenerator::PaintMode_Original));
  62
  63     ui->backgroundMode->addItem(i18n("None"), QVariant(BG_NONE));
  64     ui->backgroundMode->addItem(i18n("YUV"), QVariant(BG_YUV));
  65     ui->backgroundMode->addItem(i18n("Modified YUV (Chroma)"), QVariant(BG_CHROMA));
  66     ui->backgroundMode->addItem(i18n("YPbPr"), QVariant(BG_YPbPr));
  67
  68     ui->sliderGain->setMinimum(0);
  69     ui->sliderGain->setMaximum(40);
  70
  71     bool b = true;
  72     b &= connect(ui->backgroundMode, SIGNAL(currentIndexChanged(int)), this, SLOT(slotBackgroundChanged()));
  73     b &= connect(ui->sliderGain, SIGNAL(valueChanged(int)), this, SLOT(slotGainChanged(int)));
  74     b &= connect(ui->paintMode, SIGNAL(currentIndexChanged(int)), this, SLOT(forceUpdateScope()));
  75     b &= connect(this, SIGNAL(signalMousePositionChanged()), this, SLOT(forceUpdateHUD()));
  76     ui->sliderGain->setValue(0);
  77
  78
  79     ///// Build context menu /////
  80
  81     m_menu->addSeparator();
  82
  83     m_aExportBackground = new QAction(i18n("Export background"), this);
  84     m_menu->addAction(m_aExportBackground);
  85     b &= connect(m_aExportBackground, SIGNAL(triggered()), this, SLOT(slotExportBackground()));
  86
  87     m_a75PBox = new QAction(i18n("75% box"), this);
  88     m_a75PBox->setCheckable(true);
  89     m_menu->addAction(m_a75PBox);
  90     b &= connect(m_a75PBox, SIGNAL(changed()), this, SLOT(forceUpdateBackground()));
  91
  92     m_aAxisEnabled = new QAction(i18n("Draw axis"), this);
  93     m_aAxisEnabled->setCheckable(true);
  94     m_menu->addAction(m_aAxisEnabled);
  95     b &= connect(m_aAxisEnabled, SIGNAL(changed()), this, SLOT(forceUpdateBackground()));
  96
  97     m_menu->addSeparator()->setText(i18n("Color Space"));
  98     m_aColorSpace_YPbPr = new QAction(i18n("YPbPr"), this);
  99     m_aColorSpace_YPbPr->setCheckable(true);
 100     m_aColorSpace_YUV = new QAction(i18n("YUV"), this);
 101     m_aColorSpace_YUV->setCheckable(true);
 102     m_agColorSpace = new QActionGroup(this);
 103     m_agColorSpace->addAction(m_aColorSpace_YPbPr);
 104     m_agColorSpace->addAction(m_aColorSpace_YUV);
 105     m_menu->addAction(m_aColorSpace_YPbPr);
 106     m_menu->addAction(m_aColorSpace_YUV);
 107     b &= connect(m_aColorSpace_YPbPr, SIGNAL(toggled(bool)), this, SLOT(slotColorSpaceChanged()));
 108     b &= connect(m_aColorSpace_YUV, SIGNAL(toggled(bool)), this, SLOT(slotColorSpaceChanged()));
 109
 110     Q_ASSERT(b);
 111
 112     // To make the 1.0x text show
 113     slotGainChanged(ui->sliderGain->value());
 114
 115     init();
 116 }
 117
 118 Vectorscope::~Vectorscope()
 119 {
 120     writeConfig();
 121
 122     delete m_colorTools;
 123     delete m_colorPlaneExport;
 124     delete m_vectorscopeGenerator;
 125
 126     delete m_aColorSpace_YPbPr;
 127     delete m_aColorSpace_YUV;
 128     delete m_aExportBackground;
 129     delete m_aAxisEnabled;
 130     delete m_a75PBox;
 131     delete m_agColorSpace;
 132 }
 133
 134 QString Vectorscope::widgetName() const { return QString("Vectorscope"); }
 135
 136 void Vectorscope::readConfig()
 137 {
 138     AbstractScopeWidget::readConfig();
 139
 140     KSharedConfigPtr config = KGlobal::config();
 141     KConfigGroup scopeConfig(config, configName());
 142     m_a75PBox->setChecked(scopeConfig.readEntry("75PBox", false));
 143     m_aAxisEnabled->setChecked(scopeConfig.readEntry("axis", false));
 144     ui->backgroundMode->setCurrentIndex(scopeConfig.readEntry("backgroundmode").toInt());
 145     ui->paintMode->setCurrentIndex(scopeConfig.readEntry("paintmode").toInt());
 146     ui->sliderGain->setValue(scopeConfig.readEntry("gain", 1));
 147     m_aColorSpace_YPbPr->setChecked(scopeConfig.readEntry("colorspace_ypbpr", false));
 148     m_aColorSpace_YUV->setChecked(!m_aColorSpace_YPbPr->isChecked());
 149 }
 150
 151 void Vectorscope::writeConfig()
 152 {
 153     KSharedConfigPtr config = KGlobal::config();
 154     KConfigGroup scopeConfig(config, configName());
 155     scopeConfig.writeEntry("75PBox", m_a75PBox->isChecked());
 156     scopeConfig.writeEntry("axis", m_aAxisEnabled->isChecked());
 157     scopeConfig.writeEntry("backgroundmode", ui->backgroundMode->currentIndex());
 158     scopeConfig.writeEntry("paintmode", ui->paintMode->currentIndex());
 159     scopeConfig.writeEntry("gain", ui->sliderGain->value());
 160     scopeConfig.writeEntry("colorspace_ypbpr", m_aColorSpace_YPbPr->isChecked());
 161     scopeConfig.sync();
 162 }
 163
 164 QRect Vectorscope::scopeRect()
 165 {
 166     // Distance from top/left/right
 167     int offset = 6;
 168
 169     // We want to paint below the controls area. The line is the lowest element.
 170     QPoint topleft(offset, ui->verticalSpacer->geometry().y()+offset);
 171     QPoint bottomright(ui->horizontalSpacer->geometry().right()-offset, this->size().height()-offset);
 172
 173     QRect scopeRect(topleft, bottomright);
 174
 175     // Circle Width: min of width and height
 176     cw = (scopeRect.height() < scopeRect.width()) ? scopeRect.height() : scopeRect.width();
 177     scopeRect.setWidth(cw);
 178     scopeRect.setHeight(cw);
 179
 180
 181     m_centerPoint = m_vectorscopeGenerator->mapToCircle(scopeRect.size(), QPointF(0,0));
 182     pR75 = m_vectorscopeGenerator->mapToCircle(scopeRect.size(), P75*VectorscopeGenerator::scaling*YUV_R);
 183     pG75 = m_vectorscopeGenerator->mapToCircle(scopeRect.size(), P75*VectorscopeGenerator::scaling*YUV_G);
 184     pB75 = m_vectorscopeGenerator->mapToCircle(scopeRect.size(), P75*VectorscopeGenerator::scaling*YUV_B);
 185     pCy75 = m_vectorscopeGenerator->mapToCircle(scopeRect.size(), P75*VectorscopeGenerator::scaling*YUV_Cy);
 186     pMg75 = m_vectorscopeGenerator->mapToCircle(scopeRect.size(), P75*VectorscopeGenerator::scaling*YUV_Mg);
 187     pYl75 = m_vectorscopeGenerator->mapToCircle(scopeRect.size(), P75*VectorscopeGenerator::scaling*YUV_Yl);
 188     qR75 = m_vectorscopeGenerator->mapToCircle(scopeRect.size(), P75*VectorscopeGenerator::scaling*YPbPr_R);
 189     qG75 = m_vectorscopeGenerator->mapToCircle(scopeRect.size(), P75*VectorscopeGenerator::scaling*YPbPr_G);
 190     qB75 = m_vectorscopeGenerator->mapToCircle(scopeRect.size(), P75*VectorscopeGenerator::scaling*YPbPr_B);
 191     qCy75 = m_vectorscopeGenerator->mapToCircle(scopeRect.size(), P75*VectorscopeGenerator::scaling*YPbPr_Cy);
 192     qMg75 = m_vectorscopeGenerator->mapToCircle(scopeRect.size(), P75*VectorscopeGenerator::scaling*YPbPr_Mg);
 193     qYl75 = m_vectorscopeGenerator->mapToCircle(scopeRect.size(), P75*VectorscopeGenerator::scaling*YPbPr_Yl);
 194
 195     return scopeRect;
 196 }
 197
 198 bool Vectorscope::isHUDDependingOnInput() const { return false; }
 199 bool Vectorscope::isScopeDependingOnInput() const { return true; }
 200 bool Vectorscope::isBackgroundDependingOnInput() const { return false; }
 201
 202 QImage Vectorscope::renderHUD(uint)
 203 {
 204
 205     QImage hud;
 206
 207     if (m_mouseWithinWidget) {
 208         // Mouse moved: Draw a circle over the scope
 209
 210         hud = QImage(m_scopeRect.size(), QImage::Format_ARGB32);
 211         hud.fill(qRgba(0, 0, 0, 0));
 212
 213         QPainter davinci(&hud);
 214         QPoint widgetCenterPoint = m_scopeRect.topLeft() + m_centerPoint;
 215
 216         int dx = -widgetCenterPoint.x()+m_mousePos.x();
 217         int dy =  widgetCenterPoint.y()-m_mousePos.y();
 218
 219         QPoint reference = m_vectorscopeGenerator->mapToCircle(m_scopeRect.size(), QPointF(1,0));
 220
 221         float r = sqrt(dx*dx + dy*dy);
 222         float percent = (float) 100*r/VectorscopeGenerator::scaling/m_gain/(reference.x() - widgetCenterPoint.x());
 223
 224         switch (ui->backgroundMode->itemData(ui->backgroundMode->currentIndex()).toInt()) {
 225         case BG_NONE:
 226             davinci.setPen(penLight);
 227             break;
 228         default:
 229             if (r > cw/2) {
 230                 davinci.setPen(penLight);
 231             } else {
 232                 davinci.setPen(penDark);
 233             }
 234             break;
 235         }
 236         davinci.drawEllipse(m_centerPoint, (int)r, (int)r);
 237         davinci.setPen(penThin);
 238         davinci.drawText(QPoint(m_scopeRect.width()-40, m_scopeRect.height()), i18n("%1 \%", QString::number(percent, 'f', 0)));
 239
 240         float angle = copysign(acos(dx/r)*180/M_PI, dy);
 241         davinci.drawText(QPoint(10, m_scopeRect.height()), i18n("%1°", QString::number(angle, 'f', 1)));
 242
 243 //        m_circleEnabled = false;
 244     } else {
 245         hud = QImage(0, 0, QImage::Format_ARGB32);
 246     }
 247     emit signalHUDRenderingFinished(0, 1);
 248     return hud;
 249 }
 250
 251 QImage Vectorscope::renderScope(uint accelerationFactor, const QImage qimage)
 252 {
 253     QTime start = QTime::currentTime();
 254     QImage scope;
 255
 256     if (cw <= 0) {
 257         qDebug() << "Scope size not known yet. Aborting.";
 258     } else {
 259
 260         VectorscopeGenerator::ColorSpace colorSpace = m_aColorSpace_YPbPr->isChecked() ?
 261                                                       VectorscopeGenerator::ColorSpace_YPbPr : VectorscopeGenerator::ColorSpace_YUV;
 262         VectorscopeGenerator::PaintMode paintMode = (VectorscopeGenerator::PaintMode) ui->paintMode->itemData(ui->paintMode->currentIndex()).toInt();
 263         scope = m_vectorscopeGenerator->calculateVectorscope(m_scopeRect.size(),
 264                                                              qimage,
 265                                                              m_gain, paintMode, colorSpace,
 266                                                              m_aAxisEnabled->isChecked(), accelerationFactor);
 267
 268     }
 269
 270     unsigned int mseconds = start.msecsTo(QTime::currentTime());
 271     emit signalScopeRenderingFinished(mseconds, accelerationFactor);
 272     return scope;
 273 }
 274
 275 QImage Vectorscope::renderBackground(uint)
 276 {
 277     QTime start = QTime::currentTime();
 278     start.start();
 279
 280     QImage bg;
 281     switch (ui->backgroundMode->itemData(ui->backgroundMode->currentIndex()).toInt()) {
 282     case BG_YUV:
 283         qDebug() << "YUV background.";
 284         bg = m_colorTools->yuvColorWheel(m_scopeRect.size(), (unsigned char) 128, 1/VectorscopeGenerator::scaling, false, true);
 285         break;
 286     case BG_CHROMA:
 287         bg = m_colorTools->yuvColorWheel(m_scopeRect.size(), (unsigned char) 255, 1/VectorscopeGenerator::scaling, true, true);
 288         break;
 289     case BG_YPbPr:
 290         bg = m_colorTools->yPbPrColorWheel(m_scopeRect.size(), (unsigned char) 128, 1/VectorscopeGenerator::scaling, true);
 291         break;
 292     default:
 293         qDebug() << "No background.";
 294         bg = QImage(cw, cw, QImage::Format_ARGB32);
 295         bg.fill(qRgba(0,0,0,0));
 296         break;
 297     }
 298
 299
 300     // Draw the vectorscope circle
 301     QPainter davinci(&bg);
 302     QPoint vinciPoint;
 303
 304
 305     davinci.setRenderHint(QPainter::Antialiasing, true);
 306
 307     davinci.setPen(penThick);
 308     davinci.drawEllipse(0, 0, cw, cw);
 309
 310     // Draw RGB/CMY points with 100% chroma
 311     if (m_aColorSpace_YUV->isChecked()) {
 312         vinciPoint = m_vectorscopeGenerator->mapToCircle(m_scopeRect.size(), VectorscopeGenerator::scaling*YUV_R);
 313         davinci.drawEllipse(vinciPoint, 4,4);
 314         davinci.drawText(vinciPoint-QPoint(20, -10), "R");
 315
 316         vinciPoint = m_vectorscopeGenerator->mapToCircle(m_scopeRect.size(), VectorscopeGenerator::scaling*YUV_G);
 317         davinci.drawEllipse(vinciPoint, 4,4);
 318         davinci.drawText(vinciPoint-QPoint(20, 0), "G");
 319
 320         vinciPoint = m_vectorscopeGenerator->mapToCircle(m_scopeRect.size(), VectorscopeGenerator::scaling*YUV_B);
 321         davinci.drawEllipse(vinciPoint, 4,4);
 322         davinci.drawText(vinciPoint+QPoint(15, 10), "B");
 323
 324         vinciPoint = m_vectorscopeGenerator->mapToCircle(m_scopeRect.size(), VectorscopeGenerator::scaling*YUV_Cy);
 325         davinci.drawEllipse(vinciPoint, 4,4);
 326         davinci.drawText(vinciPoint+QPoint(15, -5), "Cy");
 327
 328         vinciPoint = m_vectorscopeGenerator->mapToCircle(m_scopeRect.size(), VectorscopeGenerator::scaling*YUV_Mg);
 329         davinci.drawEllipse(vinciPoint, 4,4);
 330         davinci.drawText(vinciPoint+QPoint(15, 10), "Mg");
 331
 332         vinciPoint = m_vectorscopeGenerator->mapToCircle(m_scopeRect.size(), VectorscopeGenerator::scaling*YUV_Yl);
 333         davinci.drawEllipse(vinciPoint, 4,4);
 334         davinci.drawText(vinciPoint-QPoint(25, 0), "Yl");
 335     } else {
 336         vinciPoint = m_vectorscopeGenerator->mapToCircle(m_scopeRect.size(), VectorscopeGenerator::scaling*YPbPr_R);
 337         davinci.drawEllipse(vinciPoint, 4,4);
 338         davinci.drawText(vinciPoint-QPoint(20, -10), "R");
 339
 340         vinciPoint = m_vectorscopeGenerator->mapToCircle(m_scopeRect.size(), VectorscopeGenerator::scaling*YPbPr_G);
 341         davinci.drawEllipse(vinciPoint, 4,4);
 342         davinci.drawText(vinciPoint-QPoint(20, 0), "G");
 343
 344         vinciPoint = m_vectorscopeGenerator->mapToCircle(m_scopeRect.size(), VectorscopeGenerator::scaling*YPbPr_B);
 345         davinci.drawEllipse(vinciPoint, 4,4);
 346         davinci.drawText(vinciPoint+QPoint(15, 10), "B");
 347
 348         vinciPoint = m_vectorscopeGenerator->mapToCircle(m_scopeRect.size(), VectorscopeGenerator::scaling*YPbPr_Cy);
 349         davinci.drawEllipse(vinciPoint, 4,4);
 350         davinci.drawText(vinciPoint+QPoint(15, -5), "Cy");
 351
 352         vinciPoint = m_vectorscopeGenerator->mapToCircle(m_scopeRect.size(), VectorscopeGenerator::scaling*YPbPr_Mg);
 353         davinci.drawEllipse(vinciPoint, 4,4);
 354         davinci.drawText(vinciPoint+QPoint(15, 10), "Mg");
 355
 356         vinciPoint = m_vectorscopeGenerator->mapToCircle(m_scopeRect.size(), VectorscopeGenerator::scaling*YPbPr_Yl);
 357         davinci.drawEllipse(vinciPoint, 4,4);
 358         davinci.drawText(vinciPoint-QPoint(25, 0), "Yl");
 359     }
 360
 361     switch (ui->backgroundMode->itemData(ui->backgroundMode->currentIndex()).toInt()) {
 362     case BG_NONE:
 363         davinci.setPen(penLight);
 364         break;
 365     default:
 366         davinci.setPen(penDark);
 367         break;
 368     }
 369
 370     // Draw axis
 371     if (m_aAxisEnabled->isChecked()) {
 372         davinci.drawLine(m_vectorscopeGenerator->mapToCircle(m_scopeRect.size(), QPointF(0,-.9)), m_vectorscopeGenerator->mapToCircle(m_scopeRect.size(), QPointF(0,.9)));
 373         davinci.drawLine(m_vectorscopeGenerator->mapToCircle(m_scopeRect.size(), QPointF(-.9,0)), m_vectorscopeGenerator->mapToCircle(m_scopeRect.size(), QPointF(.9,0)));
 374     }
 375
 376     // Draw center point
 377     switch (ui->backgroundMode->itemData(ui->backgroundMode->currentIndex()).toInt()) {
 378     case BG_CHROMA:
 379         davinci.setPen(penDark);
 380         break;
 381     default:
 382         davinci.setPen(penThin);
 383         break;
 384     }
 385     davinci.drawEllipse(m_centerPoint, 5,5);
 386
 387
 388     // Draw 75% box
 389     if (m_a75PBox->isChecked()) {
 390         if (m_aColorSpace_YUV->isChecked()) {
 391             davinci.drawLine(pR75, pYl75);
 392             davinci.drawLine(pYl75, pG75);
 393             davinci.drawLine(pG75, pCy75);
 394             davinci.drawLine(pCy75, pB75);
 395             davinci.drawLine(pB75, pMg75);
 396             davinci.drawLine(pMg75, pR75);
 397         } else {
 398             davinci.drawLine(qR75, qYl75);
 399             davinci.drawLine(qYl75, qG75);
 400             davinci.drawLine(qG75, qCy75);
 401             davinci.drawLine(qCy75, qB75);
 402             davinci.drawLine(qB75, qMg75);
 403             davinci.drawLine(qMg75, qR75);
 404         }
 405     }
 406
 407     // Draw RGB/CMY points with 75% chroma (for NTSC)
 408     davinci.setPen(penThin);
 409     if (m_aColorSpace_YUV->isChecked()) {
 410         davinci.drawEllipse(pR75, 3,3);
 411         davinci.drawEllipse(pG75, 3,3);
 412         davinci.drawEllipse(pB75, 3,3);
 413         davinci.drawEllipse(pCy75, 3,3);
 414         davinci.drawEllipse(pMg75, 3,3);
 415         davinci.drawEllipse(pYl75, 3,3);
 416     } else {
 417         davinci.drawEllipse(qR75, 3,3);
 418         davinci.drawEllipse(qG75, 3,3);
 419         davinci.drawEllipse(qB75, 3,3);
 420         davinci.drawEllipse(qCy75, 3,3);
 421         davinci.drawEllipse(qMg75, 3,3);
 422         davinci.drawEllipse(qYl75, 3,3);
 423     }
 424
 425     // Draw realtime factor (number of skipped pixels)
 426     if (m_aRealtime->isChecked()) {
 427         davinci.setPen(penThin);
 428         davinci.drawText(QPoint(m_scopeRect.width()-40, m_scopeRect.height()-15), QVariant(m_accelFactorScope).toString().append("x"));
 429     }
 430
 431     emit signalBackgroundRenderingFinished(start.elapsed(), 1);
 432     return bg;
 433 }
 434
 435
 436
 437
 438 ///// Slots /////
 439
 440 void Vectorscope::slotGainChanged(int newval)
 441 {
 442     m_gain = 1 + (float)newval/10;
 443     ui->lblGain->setText(QString::number(m_gain, 'f', 1) + "x");
 444     forceUpdateScope();
 445 }
 446
 447 void Vectorscope::slotExportBackground()
 448 {
 449     qDebug() << "Exporting background";
 450     m_colorPlaneExport->show();
 451
 452 }
 453
 454 void Vectorscope::slotBackgroundChanged()
 455 {
 456     // Background changed, switch to a suitable color mode now
 457     int index;
 458     switch (ui->backgroundMode->itemData(ui->backgroundMode->currentIndex()).toInt()) {
 459     case BG_YUV:
 460         index = ui->paintMode->findData(QVariant(VectorscopeGenerator::PaintMode_Black));
 461         if (index >= 0) {
 462             ui->paintMode->setCurrentIndex(index);
 463         }
 464         break;
 465
 466     case BG_NONE:
 467         if (ui->paintMode->itemData(ui->paintMode->currentIndex()).toInt() == VectorscopeGenerator::PaintMode_Black) {
 468             index = ui->paintMode->findData(QVariant(VectorscopeGenerator::PaintMode_Green2));
 469             ui->paintMode->setCurrentIndex(index);
 470         }
 471         break;
 472     }
 473     forceUpdateBackground();
 474 }
 475
 476 void Vectorscope::slotColorSpaceChanged()
 477 {
 478     int index;
 479     if (m_aColorSpace_YPbPr->isChecked()) {
 480         if (ui->backgroundMode->itemData(ui->backgroundMode->currentIndex()).toInt() == BG_YUV) {
 481             index = ui->backgroundMode->findData(QVariant(BG_YPbPr));
 482             if (index >= 0) {
 483                 ui->backgroundMode->setCurrentIndex(index);
 484             }
 485         }
 486     } else {
 487         if (ui->backgroundMode->itemData(ui->backgroundMode->currentIndex()).toInt() == BG_YPbPr) {
 488             index = ui->backgroundMode->findData(QVariant(BG_YUV));
 489             if (index >= 0) {
 490                 ui->backgroundMode->setCurrentIndex(index);
 491             }
 492         }
 493     }
 494     forceUpdate();
 495 }