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Fix more headers tables

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This commit is contained in:
Vivien Nicolas 2011-06-30 11:48:43 +02:00
parent 7ff6f5166c
commit 1c78d8fdb4
1 changed files with 40 additions and 32 deletions
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72
fonts.js
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@ -299,6 +299,7 @@ var Font = (function () {
// Wrap the CFF data inside an OTF font file
data = this.convert(name, cff, properties);
writeToFile(data, "/tmp/file." + fontName + "-" + fontCount + ".otf");
break;
case "TrueType":
@ -485,9 +486,9 @@ var Font = (function () {
for (var i = 1; i < charset.length; i++) {
var code = GlyphsUnicode[charset[i]];
if (code < firstCharIndex || !firstCharIndex)
if (firstCharIndex > code || !firstCharIndex)
firstCharIndex = code;
if (code > lastCharIndex)
if (lastCharIndex < code)
lastCharIndex = code;
var position = getUnicodeRangeFor(code);
@ -509,7 +510,7 @@ var Font = (function () {
"\x02\x24" + // xAvgCharWidth
"\x01\xF4" + // usWeightClass
"\x00\x05" + // usWidthClass
"\x00\x00" + // fstype
"\x00\x02" + // fstype
"\x02\x8A" + // ySubscriptXSize
"\x02\xBB" + // ySubscriptYSize
"\x00\x00" + // ySubscriptXOffset
@ -521,41 +522,41 @@ var Font = (function () {
"\x00\x31" + // yStrikeOutSize
"\x01\x02" + // yStrikeOutPosition
"\x00\x00" + // sFamilyClass
"\x02\x00\x06\x03\x00\x00\x00\x00\x00\x00" + // Panose
"\x00\x00\x06" + String.fromCharCode(properties.fixedPitch ? 0x09 : 0x00) +
"\x00\x00\x00\x00\x00\x00" + // Panose
string32(ulUnicodeRange1) + // ulUnicodeRange1 (Bits 0-31)
string32(ulUnicodeRange2) + // ulUnicodeRange2 (Bits 32-63)
string32(ulUnicodeRange3) + // ulUnicodeRange3 (Bits 64-95)
string32(ulUnicodeRange4) + // ulUnicodeRange4 (Bits 96-127)
"\x2A\x32\x31\x2A" + // achVendID
"\x00\x00" + // fsSelection
string16(properties.italicAngle ? 1 : 0) + // fsSelection
string16(firstCharIndex || properties.firstChar) + // usFirstCharIndex
string16(lastCharIndex || properties.lastChar) + // usLastCharIndex
"\x00\x20" + // sTypoAscender
"\x00\x00" + // sTypeDescender
"\x00\x00" + // sTypoLineGap
string16(properties.ascent) + // sTypoAscender
string16(properties.descent) + // sTypoDescender
"\x00\x64" + // sTypoLineGap (7%-10% of the unitsPerEM value)
string16(properties.ascent) + // usWinAscent
string16(properties.descent) + // usWinDescent
string16(-properties.descent) + // usWinDescent
"\x00\x00\x00\x00" + // ulCodePageRange1 (Bits 0-31)
"\x00\x00\x00\x00" + // ulCodePageRange2 (Bits 32-63)
string16(properties.xHeight) + // sxHeight
string16(properties.capHeight) + // sCapHeight
string16(0) + // usDefaultChar
string16(firstCharIndex || properties.firstChar) + // usBreakChar
"\x00\x00"; // usMaxContext
"\x00\x03"; // usMaxContext
};
function createPostTable(properties) {
TODO("Fill with real values from the font dict");
return "\x00\x03\x00\x00" + // Version number
string32(properties.italicAngle) + // 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
var angle = Math.floor(properties.italicAngle * (Math.pow(2, 16)));
return "\x00\x03\x00\x00" + // Version number
string32(angle) + // italicAngle
"\x00\x00" + // underlinePosition
"\x00\x00" + // underlineThickness
string32(properties.fixedPitch) + // isFixedPitch
"\x00\x00\x00\x00" + // minMemType42
"\x00\x00\x00\x00" + // maxMemType42
"\x00\x00\x00\x00" + // minMemType1
"\x00\x00\x00\x00"; // maxMemType1
};
constructor.prototype = {
@ -844,6 +845,14 @@ var Font = (function () {
nameTable += strings.join("") + stringsUnicode.join("");
return nameTable;
}
function isFixedPitch(glyphs) {
for (var i = 0; i < glyphs.length - 1; i++) {
if (glyphs[i] != glyphs[i+1])
return false;
}
return true;
};
// Required Tables
var CFF =
@ -874,11 +883,12 @@ var Font = (function () {
createTableEntry(otf, offsets, "CFF ", CFF);
/** OS/2 */
var charstrings = font.charstrings;
properties.fixedPitch = isFixedPitch(charstrings);
OS2 = stringToArray(createOS2Table(properties));
createTableEntry(otf, offsets, "OS/2", OS2);
/** CMAP */
var charstrings = font.charstrings;
cmap = createCMapTable(charstrings.slice());
createTableEntry(otf, offsets, "cmap", cmap);
@ -893,10 +903,10 @@ var Font = (function () {
"\x00\x00\x00\x00\x9e\x0b\x7e\x27" + // creation date
"\x00\x00\x00\x00\x9e\x0b\x7e\x27" + // modifification date
"\x00\x00" + // xMin
"\x00\x00" + // yMin
"\x00\x00" + // xMax
"\x00\x00" + // yMax
string16(properties.italicAngle ? 1 : 0) + // macStyle
string16(properties.descent) + // yMin
"\x0F\xFF" + // xMax
string16(properties.ascent) + // yMax
string16(properties.italicAngle ? 2 : 0) + // macStyle
"\x00\x11" + // lowestRecPPEM
"\x00\x00" + // fontDirectionHint
"\x00\x00" + // indexToLocFormat
@ -910,12 +920,12 @@ var Font = (function () {
string16(properties.ascent) + // Typographic Ascent
string16(properties.descent) + // Typographic Descent
"\x00\x00" + // Line Gap
"\xFF\xFF" + // advanceWidthMax
"\x00\xFF" + // advanceWidthMax
"\x00\x00" + // minLeftSidebearing
"\x00\x00" + // minRightSidebearing
"\x00\x00" + // xMaxExtent
"\x00\x00" + // caretSlopeRise
string16(properties.italicAngle) + // caretSlopeRun
string16(properties.capHeight) + // caretSlopeRise
string16(Math.tan(properties.italicAngle) * properties.xHeight) + // caretSlopeRun
"\x00\x00" + // caretOffset
"\x00\x00" + // -reserved-
"\x00\x00" + // -reserved-
@ -933,10 +943,8 @@ var Font = (function () {
* have to touch the 'hmtx' table
*/
hmtx = "\x00\x00\x00\x00"; // Fake .notdef
var width = 0, lsb = 0;
for (var i = 0; i < charstrings.length; i++) {
var charstring = charstrings[i];
hmtx += string16(charstring.width) + string16(0);
hmtx += string16(charstrings[i].width) + string16(0);
}
hmtx = stringToArray(hmtx);
createTableEntry(otf, offsets, "hmtx", hmtx);