hyperion.ng/libsrc/commandline/ColorsOption.cpp

#include <QRegularExpression>
#include "commandline/ColorsOption.h"
#include "commandline/Parser.h"

using namespace commandline;

bool ColorsOption::validate(Parser & parser, QString & value)
{
    // Clear any old results
    _colors.clear();

    // Check if we can create the color by name
    QColor color(value);
    if (color.isValid()) {
        _colors.push_back(color);
        return true;
    }

    // check if we can create the color by hex RRGGBB getColors
    QRegularExpression hexRe("^([0-9A-F]{6})+$", QRegularExpression::CaseInsensitiveOption);
    QRegularExpressionMatch match = hexRe.match(value);
    if(match.hasMatch()) {
        Q_FOREACH(const QString m, match.capturedTexts()){
            _colors.push_back(QColor(QString("#%1").arg(m)));
        }
        return true;
    }

	if(!parser.isSet(*this)){
		// Return true if no value is available
		return true;
	}

    _error = QString("Invalid color. A color is specified by a six lettered RRGGBB hex getColors or one of the following names:\n\t- %1").arg(QColor::colorNames().join("\n\t- "));

    return false;
}