Sakurai/pdf.js
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Add a createPostTable function and remove the useless join('') calls

Browse Source
This commit is contained in:
Vivien Nicolas 2011-06-23 22:11:16 +02:00
parent 7b454d403b
commit 59e178946a
1 changed files with 60 additions and 82 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

64
fonts.js
View File

@ -298,8 +298,7 @@ var Font = (function () {
};
function createOS2Table() {
var OS2 = stringToArray(
"\x00\x03" + // version
return "\x00\x03" + // version
"\x02\x24" + // xAvgCharWidth
"\x01\xF4" + // usWeightClass
"\x00\x05" + // usWidthClass
@ -335,19 +334,23 @@ var Font = (function () {
"\x00\x00" + // sCapHeight
"\x00\x01" + // usDefaultChar
"\x00\xCD" + // usBreakChar
"\x00\x02" // usMaxContext
);
return OS2;
"\x00\x02"; // usMaxContext
};
function createPostTable() {
TODO("Fill with real values from the font dict");
return "\x00\x03\x00\x00" + // Version number
"\x00\x00\x01\x00" + // italicAngle
"\x00\x00" + // underlinePosition
"\x00\x00" + // underlineThickness
"\x00\x00\x00\x00" + // isFixedPitch
"\x00\x00\x00\x00" + // minMemType42
"\x00\x00\x00\x00" + // maxMemType42
"\x00\x00\x00\x00" + // minMemType1
"\x00\x00\x00\x00"; // maxMemType1
};
/**
* A bunch of the OpenType code is duplicate between this class and the
* TrueType code, this is intentional and will merge in a future version
* where all the code relative to OpenType will probably have its own
* class and will take decision without the Fonts consent.
* But at the moment it allows to develop around the TrueType rewriting
* on the fly without messing up with the 'regular' Type1 to OTF conversion.
*/
constructor.prototype = {
name: null,
font: null,
@ -512,10 +515,9 @@ var Font = (function () {
createOpenTypeHeader("\x00\x01\x00\x00", ttf, offsets, numTables);
// Insert the missing table
var OS2 = createOS2Table();
tables.push({
tag: "OS/2",
data: OS2
data: stringToArray(createOS2Table)
});
// Replace the old CMAP table with a shiny new one
@ -523,20 +525,9 @@ var Font = (function () {
// Rewrite the 'post' table if needed
if (!post) {
post =
"\x00\x03\x00\x00" + // Version number
"\x00\x00\x01\x00" + // italicAngle
"\x00\x00" + // underlinePosition
"\x00\x00" + // underlineThickness
"\x00\x00\x00\x00" + // isFixedPitch
"\x00\x00\x00\x00" + // minMemType42
"\x00\x00\x00\x00" + // maxMemType42
"\x00\x00\x00\x00" + // minMemType1
"\x00\x00\x00\x00"; // maxMemType1
tables.unshift({
tables.push({
tag: "post",
data: stringToArray(post)
data: stringToArray(createPostTable())
});
}
@ -628,7 +619,7 @@ var Font = (function () {
font.data, // PostScript Font Program
OS2, // OS/2 and Windows Specific metrics
cmap, // Character to glyphs mapping
head, // Font eader
head, // Font header
hhea, // Horizontal header
hmtx, // Horizontal metrics
maxp, // Maximum profile
@ -728,17 +719,7 @@ var Font = (function () {
createTableEntry(otf, offsets, "name", name);
/** POST */
// TODO: get those informations from the FontInfo structure
post = "\x00\x03\x00\x00" + // Version number
"\x00\x00\x01\x00" + // italicAngle
"\x00\x00" + // underlinePosition
"\x00\x00" + // underlineThickness
"\x00\x00\x00\x00" + // isFixedPitch
"\x00\x00\x00\x00" + // minMemType42
"\x00\x00\x00\x00" + // maxMemType42
"\x00\x00\x00\x00" + // minMemType1
"\x00\x00\x00\x00"; // maxMemType1
post = stringToArray(post);
post = stringToArray(createPostTable());
createTableEntry(otf, offsets, "post", post);
// Once all the table entries header are written, dump the data!
@ -1480,7 +1461,6 @@ CFF.prototype = {
}
var charstringsIndex = this.createCFFIndexHeader([[0x40, 0x0E]].concat(glyphs), true);
charstringsIndex = charstringsIndex.join(" ").split(" "); // XXX why?
//Top Dict Index
var topDictIndex = [
@ -1514,7 +1494,6 @@ CFF.prototype = {
var privateOffset = charstringsOffset + charstringsIndex.length;
topDictIndex = topDictIndex.concat(this.encodeNumber(privateOffset));
topDictIndex.push(18); // Private
topDictIndex = topDictIndex.join(" ").split(" ");
var indexes = [
topDictIndex, stringsIndex,
@ -1544,7 +1523,6 @@ CFF.prototype = {
139, 12, 14,
28, 0, 55, 19
]);
privateData = privateData.join(" ").split(" ");
cff.set(privateData, currentOffset);
currentOffset += privateData.length;