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Add support for beginfbchar

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This commit is contained in:
Vivien Nicolas 2011-07-15 19:14:07 +02:00
parent aea63a7051
commit 42653edf9a
2 changed files with 29 additions and 23 deletions
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38
fonts.js
View File

@ -816,6 +816,8 @@ var Font = (function Font() {
});
};
var encoding = properties.encoding;
var charset = properties.charset;
for (var i = 0; i < numRecords; i++) {
var table = records[i];
font.pos = start + table.offset;
@ -824,38 +826,41 @@ var Font = (function Font() {
var length = int16(font.getBytes(2));
var language = int16(font.getBytes(2));
if (format == 0 && numRecords > 1) {
if (format == 0) {
// Characters below 0x20 are controls characters that are hardcoded
// into the platform so if some characters in the font are assigned
// under this limit they will not be displayed so let's rewrite the
// CMap.
var map = [];
var rewrite = false;
for (var j = 0; j < 256; j++) {
var index = font.getByte();
if (index != 0) {
map.push(index);
if (j < 0x20)
rewrite = true;
var glyphs = [];
if (encoding.empty) {
var orderedGlyphs= [];
for ( var j = 0; j < charset.length; j++) {
var unicode = GlyphsUnicode[charset[font.getByte()]] || 0;
glyphs.push({ unicode: unicode });
orderedGlyphs.push(unicode);
}
}
if (rewrite) {
var glyphs = [];
orderedGlyphs.sort(function(a, b) {
return a - b;
});
for (var p in encoding) {
if (p != "empty")
properties.encoding[p] = orderedGlyphs[p - 1];
}
} else {
for (var j = 0x20; j < 256; j++) {
// TODO do not hardcode WinAnsiEncoding
var unicode = GlyphsUnicode[Encodings["WinAnsiEncoding"][j]];
glyphs.push({ unicode: unicode });
}
cmap.data = createCMapTable(glyphs);
}
} else if ((format == 0 && numRecords == 1) ||
(format == 6 && numRecords == 1 && !properties.encoding.empty)) {
cmap.data = createCMapTable(glyphs);
} else if (format == 6 && numRecords == 1 && !encoding.empty) {
// Format 0 alone is not allowed by the sanitizer so let's rewrite
// that to a 3-1-4 Unicode BMP table
TODO('Use an other source of informations than ' +
'charset here, it is not reliable');
var charset = properties.charset;
var glyphs = [];
for (var j = 0; j < charset.length; j++) {
glyphs.push({
@ -898,7 +903,6 @@ var Font = (function Font() {
assert(ranges.length == 1, 'Got ' + ranges.length +
' ranges in a dense array');
var encoding = properties.encoding;
var denseRange = ranges[0];
var start = denseRange[0];
var end = denseRange[1];

14
pdf.js
View File

@ -3763,6 +3763,7 @@ var PartialEvaluator = (function() {
error('useCMap is not implemented');
break;
case 'beginbfchar':
case 'beginbfrange':
case 'begincodespacerange':
token = '';
@ -3780,17 +3781,18 @@ var PartialEvaluator = (function() {
var code = parseInt('0x' + tokens[j + 2]);
for (var k = startRange; k <= endRange; k++) {
// The encoding mapping table will be filled
// later during the building phase
//encodingMap[k] = GlyphsUnicode[encoding[code]];
charset.push(encoding[code++] || '.notdef');
}
}
break;
case 'beginfbchar':
case 'endfbchar':
error('fbchar parsing is not implemented');
case 'endbfchar':
for (var j = 0; j < tokens.length; j += 2) {
var index = parseInt('0x' + tokens[j]);
var code = parseInt('0x' + tokens[j + 1]);
encodingMap[index] = GlyphsUnicode[encoding[code]];
charset.push(encoding[code] || '.notdef');
}
break;
default: