File indexing completed on 2024-04-28 04:52:22

 /*
     SPDX-FileCopyrightText: 2010 Simon Andreas Eugster <simon.eu@gmail.com>
     This file is part of kdenlive. See www.kdenlive.org.
 
 SPDX-License-Identifier: GPL-3.0-only OR LicenseRef-KDE-Accepted-GPL
 */
 
 #include "rgbparade.h"
 #include "rgbparadegenerator.h"
 #include <QDebug>
 #include <QElapsedTimer>
 #include <QPainter>
 #include <QRect>
 
 #include "klocalizedstring.h"
 #include <KConfigGroup>
 #include <KSharedConfig>
 
 RGBParade::RGBParade(QWidget *parent)
     : AbstractGfxScopeWidget(true, parent)
 {
     m_ui = new Ui::RGBParade_UI();
     m_ui->setupUi(this);
 
     m_ui->paintMode->addItem(i18n("RGB"), QVariant(RGBParadeGenerator::PaintMode_RGB));
     m_ui->paintMode->addItem(i18n("White"), QVariant(RGBParadeGenerator::PaintMode_White));
 
     m_menu->addSeparator();
     m_aAxis = new QAction(i18n("Draw axis"), this);
     m_aAxis->setCheckable(true);
     m_menu->addAction(m_aAxis);
     connect(m_aAxis, &QAction::changed, this, &RGBParade::forceUpdateScope);
 
     m_aGradRef = new QAction(i18n("Gradient reference line"), this);
     m_aGradRef->setCheckable(true);
     m_menu->addAction(m_aGradRef);
     connect(m_aGradRef, &QAction::changed, this, &RGBParade::forceUpdateScope);
 
     connect(m_ui->paintMode, static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), this, &RGBParade::forceUpdateScope);
     connect(this, &RGBParade::signalMousePositionChanged, this, &RGBParade::forceUpdateHUD);
 
     m_rgbParadeGenerator = new RGBParadeGenerator();
     init();
 }
 
 RGBParade::~RGBParade()
 {
     writeConfig();
 
     delete m_ui;
     delete m_rgbParadeGenerator;
     delete m_aAxis;
     delete m_aGradRef;
 }
 
 void RGBParade::readConfig()
 {
     AbstractGfxScopeWidget::readConfig();
 
     KSharedConfigPtr config = KSharedConfig::openConfig();
     KConfigGroup scopeConfig(config, configName());
     m_ui->paintMode->setCurrentIndex(scopeConfig.readEntry("paintmode", 0));
     m_aAxis->setChecked(scopeConfig.readEntry("axis", false));
     m_aGradRef->setChecked(scopeConfig.readEntry("gradref", false));
 }
 
 void RGBParade::writeConfig()
 {
     KSharedConfigPtr config = KSharedConfig::openConfig();
     KConfigGroup scopeConfig(config, configName());
     scopeConfig.writeEntry("paintmode", m_ui->paintMode->currentIndex());
     scopeConfig.writeEntry("axis", m_aAxis->isChecked());
     scopeConfig.writeEntry("gradref", m_aGradRef->isChecked());
     scopeConfig.sync();
 }
 
 QString RGBParade::widgetName() const
 {
     return QStringLiteral("RGB Parade");
 }
 
 QRect RGBParade::scopeRect()
 {
     QPoint topleft(offset, m_ui->verticalSpacer->geometry().y() + 2 * offset);
     return QRect(topleft, QPoint(this->size().width() - offset, this->size().height() - offset));
 }
 
 QImage RGBParade::renderHUD(uint)
 {
     QImage hud(m_scopeRect.size(), QImage::Format_ARGB32);
     hud.fill(qRgba(0, 0, 0, 0));
 
     QPainter davinci;
     bool ok = davinci.begin(&hud);
     if (!ok) {
         qDebug() << "Could not initialise QPainter for RGB Parade HUD.";
         return hud;
     }
     davinci.setPen(penLight);
 
     int x = scopeRect().width() - 30;
 
     davinci.drawText(x, scopeRect().height() - RGBParadeGenerator::distBottom, QStringLiteral("0"));
     davinci.drawText(x, 10, QStringLiteral("255"));
 
     if (scopeRect().height() > 0 && m_mouseWithinWidget) {
 
         int y = m_mousePos.y() - scopeRect().y();
 
         // Draw a horizontal line through the current mouse position
         // and show the value of the waveform there
         davinci.drawLine(0, y, scopeRect().size().width() - RGBParadeGenerator::distRight, y);
 
         // Make the value stick to the line unless it is at the top/bottom of the scope
         const int top = 30;
         const int bottom = 20 + RGBParadeGenerator::distBottom;
 
         int valY = y + 5;
         if (valY < top) {
             valY = top;
         } else if (valY > scopeRect().height() - bottom) {
             valY = scopeRect().height() - bottom;
         }
 
         int val = 255 + int(255. * (1 - y) / (scopeRect().height() - RGBParadeGenerator::distBottom));
         if ((val >= 0) && (val <= 255)) {
             davinci.drawText(x, valY, QVariant(val).toString());
         }
     }
 
     Q_EMIT signalHUDRenderingFinished(1, 1);
     return hud;
 }
 
 QImage RGBParade::renderGfxScope(uint accelerationFactor, const QImage &qimage)
 {
     QElapsedTimer timer;
     timer.start();
 
     int paintmode = m_ui->paintMode->itemData(m_ui->paintMode->currentIndex()).toInt();
     QImage parade = m_rgbParadeGenerator->calculateRGBParade(m_scopeRect.size(), qimage, RGBParadeGenerator::PaintMode(paintmode), m_aAxis->isChecked(),
                                                              m_aGradRef->isChecked(), accelerationFactor);
     Q_EMIT signalScopeRenderingFinished(uint(timer.elapsed()), accelerationFactor);
     return parade;
 }
 
 QImage RGBParade::renderBackground(uint)
 {
     return QImage();
 }
 
 bool RGBParade::isHUDDependingOnInput() const
 {
     return false;
 }
 
 bool RGBParade::isScopeDependingOnInput() const
 {
     return true;
 }
 
 bool RGBParade::isBackgroundDependingOnInput() const
 {
     return false;
 }