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Add the beginning of a CFF encoder

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This commit is contained in:
Vivien Nicolas 2011-06-10 06:12:59 +02:00
parent 3834c9be08
commit 18b2e3c6f8
4 changed files with 279 additions and 10 deletions
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19
PDFFontUtils.js
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@ -22,6 +22,7 @@ function readCharset(aStream, aCharstrings) {
var count = aCharstrings.length - 1;
for (var i = 1; i < count + 1; i++) {
var sid = aStream.getByte() << 8 | aStream.getByte();
log(sid);
charset[CFFStrings[sid]] = readCharstringEncoding(aCharstrings[i]);
log(CFFStrings[sid] + "::" + charset[CFFStrings[sid]]);
}
@ -282,10 +283,12 @@ var Type2Parser = function(aFilePath) {
// Read the Top Dict Index
dump("Reading Index: TopDict");
var topDict = readFontIndexData(aStream, true);
log(topDict);
// Read the String Index
dump("Reading Index: Strings");
var strings = readFontIndexData(aStream);
log(strings);
// Fill up the Strings dictionary with the new unique strings
for (var i = 0; i < strings.length; i++)
@ -310,6 +313,7 @@ var Type2Parser = function(aFilePath) {
var privateDict = [];
for (var i = 0; i < private.size; i++)
privateDict.push(aStream.getByte());
dump("private:" + privateDict);
parseAsToken(privateDict, CFFDictPrivateDataMap);
for (var p in font.map)
@ -321,25 +325,23 @@ var Type2Parser = function(aFilePath) {
aStream.pos = charStringsOffset;
var charStrings = readFontIndexData(aStream, true);
// Read Charset
dump("Read Charset for " + charStrings.length + " glyphs");
var charsetEntry = font.get("charset");
if (charsetEntry == 0) {
throw new Error("Need to support CFFISOAdobeCharset");
error("Need to support CFFISOAdobeCharset");
} else if (charsetEntry == 1) {
throw new Error("Need to support CFFExpert");
error("Need to support CFFExpert");
} else if (charsetEntry == 2) {
throw new Error("Need to support CFFExpertSubsetCharset");
error("Need to support CFFExpertSubsetCharset");
} else {
aStream.pos = charsetEntry;
var charset = readCharset(aStream, charStrings);
}
}
};
// XXX
/*
var xhr = new XMLHttpRequest();
xhr.open("GET", "titi.cff", false);
xhr.mozResponseType = xhr.responseType = "arraybuffer";
@ -348,5 +350,4 @@ xhr.send(null);
var cffData = xhr.mozResponseArrayBuffer || xhr.mozResponse ||
xhr.responseArrayBuffer || xhr.response;
var cff = new Type2Parser("titi.cff");
cff.parse(new Stream(cffData));
*/
//cff.parse(new Stream(cffData));