Method drawImage

src/Gui/SoTextLabel.cpp:633–720

}

void SoFrameLabel::drawImage()
{
    const SbString* s = string.getValues(0);
    int num = string.getNum();
    if (num == 0) {
        this->image = SoSFImage();
        return;
    }

    QFont font(QString::fromLatin1(QByteArray(name.getValue())), size.getValue());
    QFontMetrics fm(font);
    int w = 0;
    int h = fm.height() * num;
    const SbColor& b = backgroundColor.getValue();
    QColor backgroundBrush;
    backgroundBrush.setRgbF(b[0], b[1], b[2]);
    const SbColor& t = textColor.getValue();
    QColor front;
    front.setRgbF(t[0], t[1], t[2]);
    const QPen borderPen(QColor(0, 0, 127), 2, Qt::SolidLine, Qt::RoundCap, Qt::RoundJoin);

    QStringList lines;
    for (int i = 0; i < num; i++) {
        QString line = QString::fromUtf8(s[i].getString());
        w = std::max<int>(w, QtTools::horizontalAdvance(fm, line));
        lines << line;
    }

    int padding = 5;

    bool drawIcon = false;
    QImage iconImg;
    int widthIcon = 0;
    int heightIcon = 0;
    if (!iconPixmap.isNull()) {
        drawIcon = true;
        iconImg = iconPixmap.toImage();
        widthIcon = iconImg.width() + 2 * padding;
        heightIcon = iconImg.height() + 2 * padding;
    }

    int widthText = w + 2 * padding;
    int heightText = h + 2 * padding;
    int widthTotal = widthText + widthIcon;
    int heightTotal = heightText > heightIcon ? heightText : heightIcon;
    int paddingTextV = (heightTotal - h) / 2;
    int paddingIconV = (heightTotal - iconImg.height()) / 2;

    QImage image(widthTotal, heightTotal, QImage::Format_ARGB32_Premultiplied);
    image.fill(0x00000000);
    QPainter painter(&image);
    painter.setRenderHint(QPainter::Antialiasing);

    SbBool drawFrame = frame.getValue();
    SbBool drawBorder = border.getValue();
    if (drawFrame || drawBorder) {
        painter.setPen(drawBorder ? borderPen : QPen(Qt::transparent));
        painter.setBrush(QBrush(drawFrame ? backgroundBrush : Qt::transparent));