示例#1
0
QIcon RColor::getIcon(const RColor& color, const QSize& size) {
    init();

    if (iconMap.contains(QPair<RColor, QPair<int, int> >(color, QPair<int, int>(size.width(), size.height())))) {
        return iconMap[QPair<RColor, QPair<int, int> >(color, QPair<int, int>(size.width(), size.height()))];
    }

    RColor col = color;
    if (color.isByLayer() || color.isByBlock() || /*color == RColor(Qt::black,
            RColor::BlackWhite) ||*/ !color.isValid()) {
        col = Qt::white;
    }
    QImage img(size, QImage::Format_ARGB32_Premultiplied);
    img.fill(0);
    QPainter painter(&img);
    int w = img.width();
    int h = img.height();
    //    painter.setCompositionMode(QPainter::CompositionMode_Source);
    painter.fillRect(0, 0, w, h, col);
    if (!color.isValid()) {
        // icon for "Other colors..."
        QLinearGradient grad(0, 0, w, 0);
        grad.setColorAt(0, Qt::red);
        grad.setColorAt(0.33, Qt::yellow);
        grad.setColorAt(0.66, Qt::blue);
        grad.setColorAt(1, Qt::green);
        painter.fillRect(QRect(0, 0, w, h), grad);
    } /*else if (color == RColor(Qt::black, RColor::BlackWhite) || color
            == RColor(Qt::white, RColor::BlackWhite)) {
        // icon for black / white
        painter.setRenderHint(QPainter::Antialiasing);
        QPainterPath path;
        path.moveTo(0, 0);
        path.lineTo(w, 0);
        path.lineTo(w, h);
        painter.fillPath(path, Qt::black);
        painter.setRenderHint(QPainter::Antialiasing, false);
    }*/ else if (col.alpha() != 255) {
        // indicate alpha by an inset
        QBrush opaqueBrush = col;
        col.setAlpha(255);
        opaqueBrush.setColor(col);
        painter.fillRect(w / 4, h / 4, w / 2, h / 2, opaqueBrush);
    }
    painter.setPen(Qt::black);
    painter.drawRect(0, 0, w - 1, h - 1);
    painter.end();
    QIcon ret(QPixmap::fromImage(img));
    iconMap.insert(QPair<RColor, QPair<int, int> >(color, QPair<int, int>(size.width(), size.height())), ret);
    return ret;
}
示例#2
0
/**
 * Stream operator for QDebug
 */
QDebug operator<<(QDebug dbg, const RColor& c) {
    if (c.isValid()) {
        if (c.isByLayer()) {
            dbg.nospace() << "RColor(ByLayer)";
        } else if (c.isByBlock()) {
            dbg.nospace() << "RColor(ByBlock)";
        } else {
            dbg.nospace() << "RColor(RGBA: " << c.red() << ", " << c.green() << ", "
                    << c.blue() << ", " << c.alpha() << ")";
        }
    } else {
        dbg.nospace() << "RColor(invalid)";
    }
    return dbg.space();
}