PrismLauncher/launcher/ui/themes/ITheme.cpp

#include "ITheme.h"
#include "rainbow.h"
#include <QStyleFactory>
#include <QDir>
#include "Application.h"

void ITheme::apply(bool)
{
    APPLICATION->setStyleSheet(QString());
    QApplication::setStyle(QStyleFactory::create(qtTheme()));
    if (hasColorScheme()) {
        QApplication::setPalette(colorScheme());
    }
    if (hasStyleSheet())
        APPLICATION->setStyleSheet(appStyleSheet());

    QDir::setSearchPaths("theme", searchPaths());
}

QPalette ITheme::fadeInactive(QPalette in, qreal bias, QColor color)
{
    auto blend = [&in, bias, color](QPalette::ColorRole role)
    {
        QColor from = in.color(QPalette::Active, role);
        QColor blended = Rainbow::mix(from, color, bias);
        in.setColor(QPalette::Disabled, role, blended);
    };
    blend(QPalette::Window);
    blend(QPalette::WindowText);
    blend(QPalette::Base);
    blend(QPalette::AlternateBase);
    blend(QPalette::ToolTipBase);
    blend(QPalette::ToolTipText);
    blend(QPalette::Text);
    blend(QPalette::Button);
    blend(QPalette::ButtonText);
    blend(QPalette::BrightText);
    blend(QPalette::Link);
    blend(QPalette::Highlight);
    blend(QPalette::HighlightedText);
    return in;
}