colourdelegate.cpp

/*!
 * \file colourdelegate.cpp
 *  \author Simon Coakley
 *  \date 2012
 *  \copyright Copyright (c) 2012 University of Sheffield
 *  \brief Implementation of colour delegate
 */
#include <QColor>
#include <QPainter>
#include "./colourdelegate.h"

ColourDelegate::ColourDelegate(QObject *parent)
    : QItemDelegate(parent) {
}

void ColourDelegate::paint(QPainter *painter,
        const QStyleOptionViewItem &option, const QModelIndex &index) const {
    if (qVariantCanConvert<QColor>(index.data())) {
        QColor colour = qVariantValue<QColor>(index.data());
        // painter->drawText(option.rect, mpre.toString());

        if (option.state & QStyle::State_Selected)
        painter->fillRect(option.rect, option.palette.highlight());

        painter->fillRect(option.rect, colour);
        int percent = colour.alphaF()*100.0;
        if (percent < 100)
            painter->drawText(option.rect, Qt::AlignCenter,
                    QString("%1%").arg(percent));
    } else {
        QItemDelegate::paint(painter, option, index);
    }
}