Warning, file /frameworks/kconfigwidgets/tests/kcolorutilsdemo.cpp was not indexed or was modified since last indexation (in which case cross-reference links may be missing, inaccurate or erroneous).

 /*
     SPDX-FileCopyrightText: 2009 Matthew Woehlke <mw_triad@users.sourceforge.net>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #include "kcolorutilsdemo.h"
 #include <KColorUtils>
 #include <kcolorscheme.h>
 
 #include <QApplication>
 
 KColorUtilsDemo::KColorUtilsDemo(QWidget *parent)
     : QWidget(parent)
     , _leOutImg(128, 128, QImage::Format_RGB32)
     , _mtMixOutImg(128, 16, QImage::Format_RGB32)
     , _mtTintOutImg(128, 16, QImage::Format_RGB32)
 {
     _noUpdate = true;
     setupUi(this);
     _noUpdate = false;
 
     inputSpinChanged();
     targetSpinChanged();
 }
 
 void KColorUtilsDemo::inputChanged()
 {
     qreal hue;
     qreal chroma;
     qreal luma;
     KColorUtils::getHcy(inColor->color(), &hue, &chroma, &luma);
     ifHue->setValue(hue);
     ifChroma->setValue(chroma);
     ifLuma->setValue(luma);
     ifGray->setValue(qGray(inColor->color().rgb()));
 
     lumaChanged();
     mixChanged();
     shadeChanged();
 }
 
 void KColorUtilsDemo::lumaChanged()
 {
     QColor base = inColor->color();
 
     for (int y = 0; y < 128; ++y) {
         qreal k = qreal(y - 64) / 64.0;
 
         for (int x = 0; x < 128; ++x) {
             qreal c;
 
             QColor r;
             if (leOpLighten->isChecked()) {
                 c = qreal(128 - x) / 64.0;
                 r = KColorUtils::lighten(base, k, c);
             } else if (leOpDarken->isChecked()) {
                 c = qreal(x) / 64.0;
                 r = KColorUtils::darken(base, -k, c);
             } else {
                 c = qreal(x - 64) / 64.0;
                 r = KColorUtils::shade(base, k, c);
             }
             _leOutImg.setPixel(x, y, r.rgb());
         }
     }
 
     leOut->setImage(_leOutImg);
 }
 
 void KColorUtilsDemo::mixChanged()
 {
     QColor base = inColor->color();
     QColor target = mtTarget->color();
 
     for (int x = 0; x < 128; ++x) {
         qreal k = qreal(x) / 128.0;
 
         QRgb m = KColorUtils::mix(base, target, k).rgb();
         QRgb t = KColorUtils::tint(base, target, k).rgb();
 
         for (int y = 0; y < 16; ++y) {
             _mtMixOutImg.setPixel(x, y, m);
             _mtTintOutImg.setPixel(x, y, t);
         }
     }
 
     mtMixOut->setImage(_mtMixOutImg);
     mtTintOut->setImage(_mtTintOutImg);
 }
 
 void setBackground(QWidget *widget, const QColor &color)
 {
     QPalette palette = widget->palette();
     palette.setColor(widget->backgroundRole(), color);
     widget->setPalette(palette);
 
     QString name = color.name();
     name += " (" + QString::number(color.red()) + ", " + QString::number(color.green()) + ", " + QString::number(color.blue()) + QLatin1Char(')');
     widget->setToolTip(name);
 }
 
 #define SET_SHADE(_n, _c, _cn, _ch) setBackground(ss##_n, KColorScheme::shade(_c, KColorScheme::_n##Shade, _cn, _ch));
 
 void KColorUtilsDemo::shadeChanged()
 {
     qreal cn = ssContrast->value();
     qreal ch = ssChroma->value();
 
     QColor base = inColor->color();
     setBackground(ssOut, base);
     setBackground(ssBase, base);
     SET_SHADE(Light, base, cn, ch);
     SET_SHADE(Midlight, base, cn, ch);
     SET_SHADE(Mid, base, cn, ch);
     SET_SHADE(Dark, base, cn, ch);
     SET_SHADE(Shadow, base, cn, ch);
 }
 
 void updateSwatch(KColorButton *s, const QSpinBox *r, const QSpinBox *g, const QSpinBox *b)
 {
     s->setColor(QColor(r->value(), g->value(), b->value()));
 }
 
 void updateSpins(const QColor &c, QSpinBox *r, QSpinBox *g, QSpinBox *b)
 {
     r->setValue(c.red());
     g->setValue(c.green());
     b->setValue(c.blue());
 }
 
 void KColorUtilsDemo::inputSpinChanged()
 {
     if (_noUpdate) {
         return;
     }
     _noUpdate = true;
 
     updateSwatch(inColor, inRed, inGreen, inBlue);
     inputChanged();
 
     _noUpdate = false;
 }
 
 void KColorUtilsDemo::targetSpinChanged()
 {
     if (_noUpdate) {
         return;
     }
     _noUpdate = true;
 
     updateSwatch(mtTarget, mtRed, mtGreen, mtBlue);
     mixChanged();
 
     _noUpdate = false;
 }
 
 void KColorUtilsDemo::inputSwatchChanged(const QColor &color)
 {
     if (_noUpdate) {
         return;
     }
     _noUpdate = true;
 
     updateSpins(color, inRed, inGreen, inBlue);
     inputChanged();
 
     _noUpdate = false;
 }
 
 void KColorUtilsDemo::targetSwatchChanged(const QColor &color)
 {
     if (_noUpdate) {
         return;
     }
     _noUpdate = true;
 
     updateSpins(color, mtRed, mtGreen, mtBlue);
     mixChanged();
 
     _noUpdate = false;
 }
 
 int main(int argc, char *argv[])
 {
     QApplication app(argc, argv);
 
     KColorUtilsDemo *d = new KColorUtilsDemo;
     d->show();
     return app.exec();
 }