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/*
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();
}
#include "moc_kcolorutilsdemo.cpp"
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