double GfxState::getTransformedFontSize() const
{
    double x1, y1, x2, y2;

    x1 = textMat[2] * fontSize;
    y1 = textMat[3] * fontSize;
    x2 = ctm[0] * x1 + ctm[2] * y1;
    y2 = ctm[1] * x1 + ctm[3] * y1;
    return sqrt(x2 * x2 + y2 * y2);
}
Unknown