private void fillFontDesc(PdfDictionary fontDesc) {
if (fontDesc == null) return;
PdfNumber v = fontDesc.getAsNumber(PdfName.ASCENT);
if (v != null) ascender = v.floatValue();
v = fontDesc.getAsNumber(PdfName.CAPHEIGHT);
if (v != null) capHeight = v.floatValue();
v = fontDesc.getAsNumber(PdfName.DESCENT);
if (v != null) descender = v.floatValue();
v = fontDesc.getAsNumber(PdfName.ITALICANGLE);
if (v != null) italicAngle = v.floatValue();
v = fontDesc.getAsNumber(PdfName.FONTWEIGHT);
if (v != null) {
fontWeight = v.floatValue();
}
PdfArray bbox = fontDesc.getAsArray(PdfName.FONTBBOX);
if (bbox != null) {
llx = bbox.getAsNumber(0).floatValue();
lly = bbox.getAsNumber(1).floatValue();
urx = bbox.getAsNumber(2).floatValue();
ury = bbox.getAsNumber(3).floatValue();
if (llx > urx) {
float t = llx;
llx = urx;
urx = t;
}
if (lly > ury) {
float t = lly;
lly = ury;
ury = t;
}
}
float maxAscent = Math.max(ury, ascender);
float minDescent = Math.min(lly, descender);
ascender = maxAscent * 1000 / (maxAscent - minDescent);
descender = minDescent * 1000 / (maxAscent - minDescent);
}
