public int getStartxref() throws IOException {
int size = Math.min(1024, file.length());
int pos = file.length() - size;
file.seek(pos);
String str = readString(1024);
int idx = str.lastIndexOf("startxref");
if (idx < 0) throw new IOException("PDF startxref not found.");
return pos + idx;
}
private void openpfm() throws IOException {
in.seek(0);
vers = in.readShortLE();
h_len = in.readIntLE();
copyright = readString(60);
type = in.readShortLE();
points = in.readShortLE();
verres = in.readShortLE();
horres = in.readShortLE();
ascent = in.readShortLE();
intleading = in.readShortLE();
extleading = in.readShortLE();
italic = (byte) in.read();
uline = (byte) in.read();
overs = (byte) in.read();
weight = in.readShortLE();
charset = (byte) in.read();
pixwidth = in.readShortLE();
pixheight = in.readShortLE();
kind = (byte) in.read();
avgwidth = in.readShortLE();
maxwidth = in.readShortLE();
firstchar = in.read();
lastchar = in.read();
defchar = (byte) in.read();
brkchar = (byte) in.read();
widthby = in.readShortLE();
device = in.readIntLE();
face = in.readIntLE();
bits = in.readIntLE();
bitoff = in.readIntLE();
extlen = in.readShortLE();
psext = in.readIntLE();
chartab = in.readIntLE();
res1 = in.readIntLE();
kernpairs = in.readIntLE();
res2 = in.readIntLE();
fontname = in.readIntLE();
if (h_len != in.length() || extlen != 30 || fontname < 75 || fontname > 512)
throw new IOException(MessageLocalization.getComposedMessage("not.a.valid.pfm.file"));
in.seek(psext + 14);
capheight = in.readShortLE();
xheight = in.readShortLE();
ascender = in.readShortLE();
descender = in.readShortLE();
}
/**
* If the embedded flag is <CODE>false</CODE> or if the font is one of the 14 built in types, it
* returns <CODE>null</CODE>, otherwise the font is read and output in a PdfStream object.
*
* @return the PdfStream containing the font or <CODE>null</CODE>
* @throws DocumentException if there is an error reading the font
*/
private PdfStream getFontStream() throws DocumentException {
if (builtinFont || !embedded) return null;
RandomAccessFileOrArray rf = null;
try {
String filePfb = fileName.substring(0, fileName.length() - 3) + "pfb";
if (pfb == null) rf = new RandomAccessFileOrArray(filePfb);
else rf = new RandomAccessFileOrArray(pfb);
int fileLength = rf.length();
byte st[] = new byte[fileLength - 18];
int lengths[] = new int[3];
int bytePtr = 0;
for (int k = 0; k < 3; ++k) {
if (rf.read() != 0x80) throw new DocumentException("Start marker missing in " + filePfb);
if (rf.read() != PFB_TYPES[k])
throw new DocumentException("Incorrect segment type in " + filePfb);
int size = rf.read();
size += rf.read() << 8;
size += rf.read() << 16;
size += rf.read() << 24;
lengths[k] = size;
while (size != 0) {
int got = rf.read(st, bytePtr, size);
if (got < 0) throw new DocumentException("Premature end in " + filePfb);
bytePtr += got;
size -= got;
}
}
return new StreamFont(st, lengths);
} catch (Exception e) {
throw new DocumentException(e);
} finally {
if (rf != null) {
try {
rf.close();
} catch (Exception e) {
// empty on purpose
}
}
}
}
public int length() throws IOException {
return file.length();
}
