break;
}
this.data = data;
- this.type = properties.type; //use the type to test if the string is single or multi-byte
+ this.type = properties.type; // Use the type to test if the string is single or multi-byte
this.id = Fonts.registerFont(name, data, properties);
this.loadedName = 'pdfFont' + this.id;
this.compositeFont = properties.compositeFont;
'\x00\x00\x00\x00'; // maxMemType1
};
+ function createNameTable(name) {
+ var strings = [
+ 'Original licence', // 0.Copyright
+ name, // 1.Font family
+ 'Unknown', // 2.Font subfamily (font weight)
+ 'uniqueID', // 3.Unique ID
+ name, // 4.Full font name
+ 'Version 0.11', // 5.Version
+ '', // 6.Postscript name
+ 'Unknown', // 7.Trademark
+ 'Unknown', // 8.Manufacturer
+ 'Unknown' // 9.Designer
+ ];
+
+ // Mac want 1-byte per character strings while Windows want
+ // 2-bytes per character, so duplicate the names table
+ var stringsUnicode = [];
+ for (var i = 0; i < strings.length; i++) {
+ var str = strings[i];
+
+ var strUnicode = '';
+ for (var j = 0; j < str.length; j++)
+ strUnicode += string16(str.charCodeAt(j));
+ stringsUnicode.push(strUnicode);
+ }
+
+ var names = [strings, stringsUnicode];
+ var platforms = ['\x00\x01', '\x00\x03'];
+ var encodings = ['\x00\x00', '\x00\x01'];
+ var languages = ['\x00\x00', '\x04\x09'];
+
+ var namesRecordCount = strings.length * platforms.length;
+ var nameTable =
+ '\x00\x00' + // format
+ string16(namesRecordCount) + // Number of names Record
+ string16(namesRecordCount * 12 + 6); // Storage
+
+ // Build the name records field
+ var strOffset = 0;
+ for (var i = 0; i < platforms.length; i++) {
+ var strs = names[i];
+ for (var j = 0; j < strs.length; j++) {
+ var str = strs[j];
+ var nameRecord =
+ platforms[i] + // platform ID
+ encodings[i] + // encoding ID
+ languages[i] + // language ID
+ string16(j) + // name ID
+ string16(str.length) +
+ string16(strOffset);
+ nameTable += nameRecord;
+ strOffset += str.length;
+ }
+ }
+
+ nameTable += strings.join('') + stringsUnicode.join('');
+ return nameTable;
+ }
+
constructor.prototype = {
name: null,
font: null,
// This keep a reference to the CMap and the post tables since they can
// be rewritted
- var cmap, post;
+ var cmap, post, nameTable, maxp;
var tables = [];
for (var i = 0; i < numTables; i++) {
cmap = table;
else if (table.tag == 'post')
post = table;
+ else if (table.tag == 'name')
+ nameTable = table;
+ else if (table.tag == 'maxp')
+ maxp = table;
requiredTables.splice(index, 1);
}
data: stringToArray(createOS2Table(properties))
});
- if (!cmap) {
+ // Replace the old CMAP table with a shiny new one
+ if (properties.type == 'CIDFontType2') {
+ // Type2 composite fonts map charcters directly to glyphs so the cmap
+ // table must be replaced.
+
var glyphs = [];
var charset = properties.charset;
- for (var i=1; i < charset.length; i++) {
- if (charset.indexOf(i) != -1) {
+ if (charset.length == 0)
+ {
+ // PDF did not contain a GIDMap for the font so create an identity cmap
+
+ // First get the number of glyphs from the maxp table
+ font.pos = (font.start ? font.start : 0) + maxp.length;
+ var version = int16(font.getBytes(4));
+ var numGlyphs = int16(font.getBytes(2));
+
+ // Now create an identity mapping
+ for (var i=1; i < numGlyphs; i++) {
glyphs.push({
- unicode: charset.indexOf(i)
+ unicode: i
});
- } else {
- break;
+ }
+ } else {
+ for (var i=1; i < charset.length; i++) {
+ if (charset.indexOf(i) != -1) {
+ glyphs.push({
+ unicode: charset.indexOf(i)
+ });
+ } else {
+ break;
+ }
}
}
- tables.push({
- tag: 'cmap',
- data: createCMapTable(glyphs)
- })
+
+ if (!cmap) {
+ // Font did not contain a cmap
+ tables.push({
+ tag: 'cmap',
+ data: createCMapTable(glyphs)
+ })
+ } else {
+ cmap.data = createCMapTable(glyphs);
+ }
} else {
- // Replace the old CMAP table with a shiny new one
replaceCMapTable(cmap, font, properties);
}
});
}
+ // Rewrite the 'name' table if needed
+ if (!nameTable) {
+ tables.push({
+ tag: 'name',
+ data: stringToArray(createNameTable(this.name))
+ });
+ }
+
// Tables needs to be written by ascendant alphabetic order
tables.sort(function tables_sort(a, b) {
return (a.tag > b.tag) - (a.tag < b.tag);
},
convert: function font_convert(fontName, font, properties) {
- function createNameTable(name) {
- var strings = [
- 'Original licence', // 0.Copyright
- name, // 1.Font family
- 'Unknown', // 2.Font subfamily (font weight)
- 'uniqueID', // 3.Unique ID
- name, // 4.Full font name
- 'Version 0.11', // 5.Version
- '', // 6.Postscript name
- 'Unknown', // 7.Trademark
- 'Unknown', // 8.Manufacturer
- 'Unknown' // 9.Designer
- ];
-
- // Mac want 1-byte per character strings while Windows want
- // 2-bytes per character, so duplicate the names table
- var stringsUnicode = [];
- for (var i = 0; i < strings.length; i++) {
- var str = strings[i];
-
- var strUnicode = '';
- for (var j = 0; j < str.length; j++)
- strUnicode += string16(str.charCodeAt(j));
- stringsUnicode.push(strUnicode);
- }
-
- var names = [strings, stringsUnicode];
- var platforms = ['\x00\x01', '\x00\x03'];
- var encodings = ['\x00\x00', '\x00\x01'];
- var languages = ['\x00\x00', '\x04\x09'];
-
- var namesRecordCount = strings.length * platforms.length;
- var nameTable =
- '\x00\x00' + // format
- string16(namesRecordCount) + // Number of names Record
- string16(namesRecordCount * 12 + 6); // Storage
-
- // Build the name records field
- var strOffset = 0;
- for (var i = 0; i < platforms.length; i++) {
- var strs = names[i];
- for (var j = 0; j < strs.length; j++) {
- var str = strs[j];
- var nameRecord =
- platforms[i] + // platform ID
- encodings[i] + // encoding ID
- languages[i] + // language ID
- string16(j) + // name ID
- string16(str.length) +
- string16(strOffset);
- nameTable += nameRecord;
- strOffset += str.length;
- }
- }
-
- 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])
var compositeFont = false;
assertWellFormed(IsName(subType), 'invalid font Subtype');
- //If font is a composite
+ // If font is a composite
// - get the descendant font
// - set the type according to the descendant font
// - get the FontDescriptor from the descendant font
var encodingMap = {};
var charset = [];
if (compositeFont) {
- //Special CIDFont support
- //XXX only identity CID Encodings supported for now
- var encoding = xref.fetchIfRef(fontDict.get('Encoding'));
- if (IsName(encoding)) {
- //Encoding is a predefined CMap
- if (encoding.name == 'Identity-H') {
- if (subType.name == 'CIDFontType2') {
- var cidToGidMap = descendant.get('CIDToGIDMap');
- if (cidToGidMap) {
- //Extract the charset from the CIDToGIDMap
- var glyphsStream = xref.fetchIfRef(cidToGidMap);
- var glyphsData = glyphsStream.getBytes(0);
- var i = 0;
- //glyph ids are big-endian 2-byte values
- for (var j=0; j<glyphsData.length; j++) {
- var glyphID = (glyphsData[j++] << 8) | glyphsData[j];
- charset.push(glyphID);
- }
- }
+ // Special CIDFont support
+ // XXX only CIDFontType2 supported for now
+ if (subType.name == 'CIDFontType2') {
+ var cidToGidMap = descendant.get('CIDToGIDMap');
+ if (cidToGidMap && IsRef(cidToGidMap)) {
+ // Extract the charset from the CIDToGIDMap
+ var glyphsStream = xref.fetchIfRef(cidToGidMap);
+ var glyphsData = glyphsStream.getBytes(0);
+ var i = 0;
+ // Glyph ids are big-endian 2-byte values
+ for (var j=0; j<glyphsData.length; j++) {
+ var glyphID = (glyphsData[j++] << 8) | glyphsData[j];
+ charset.push(glyphID);
+ }
+ }
+ }
+ else {
+ // XXX This is a placeholder for handling of the encoding of CIDFontType0 fonts
+ var encoding = xref.fetchIfRef(fontDict.get('Encoding'));
+ if (IsName(encoding)) {
+ // Encoding is a predefined CMap
+ if (encoding.name == 'Identity-H') {
+ TODO ('Need to create an identity cmap')
+ } else {
+ TODO ('Need to support predefined CMaps see PDF 32000-1:2008 9.7.5.2 Predefined CMaps')
}
} else {
- TODO ('Need to support predefined CMaps see PDF 32000-1:2008 9.7.5.2 Predefined CMaps')
+ TODO ('Need to support encoding streams see PDF 32000-1:2008 9.7.5.3');
}
- } else {
- TODO ('Need to support encoding streams see PDF 32000-1:2008 9.7.5.3');
}
} else if (fontDict.has('Encoding')) {
var encoding = xref.fetchIfRef(fontDict.get('Encoding'));
projects / pdf.js.git / commitdiff