Method paint_label

DSView/pv/view/trace.cpp:186–283

}

void Trace::paint_label(QPainter &p, int right, const QPoint pt, QColor fore)
{
    if (_type == SR_CHANNEL_FFT && !enabled())
        return;

    compute_text_size(p);
    const int y = get_y();

    const QRectF color_rect = get_rect("color", y, right);
    const QRectF name_rect  = get_rect("name",  y, right);
    const QRectF label_rect = get_rect("label", get_zero_vpos(), right);

    // Paint the ColorButton
    QColor foreBack = fore;
    foreBack.setAlpha(View::BackAlpha);
    p.setPen(Qt::transparent);
    p.setBrush(enabled() ? (_colour.isValid() ? _colour : fore) : foreBack);
    p.drawRect(color_rect);
    
    if (_type == SR_CHANNEL_DSO ||
        _type == SR_CHANNEL_MATH) {
        p.setPen(enabled() ?  Qt::white: foreBack);
        p.drawText(color_rect, Qt::AlignCenter | Qt::AlignVCenter, _name);
    }

    if (_type != SR_CHANNEL_DSO) {
        // Paint the signal name
        p.setPen(enabled() ?  fore: foreBack);
        p.drawText(name_rect, Qt::AlignLeft | Qt::AlignVCenter, _name);
    }

    // Paint the trigButton
    paint_type_options(p, right, pt, fore);

    // Paint the label
    if (enabled()) {
        const QPointF points[] = {
            label_rect.topLeft(),
            label_rect.topRight(),
            QPointF(right, get_zero_vpos()),
            label_rect.bottomRight(),
            label_rect.bottomLeft()
        };

        p.setPen(Qt::transparent);
        if (_type == SR_CHANNEL_DSO ||
            _type == SR_CHANNEL_FFT ||
            _type == SR_CHANNEL_ANALOG ||
            _type == SR_CHANNEL_MATH) {
            p.setBrush(_colour);
            p.drawPolygon(points, countof(points));
        } else {
            QColor color = PROBE_COLORS[*_index_list.begin() % countof(PROBE_COLORS)];
            p.setBrush(color);
            p.drawPolygon(points, countof(points));
        }

        p.setPen(Qt::white);