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Fix loading of fonts that are not referenced by an object identifier

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This commit is contained in:
Jonas Jenwald 2013-12-17 00:19:31 +01:00
parent 356ebf25cc
commit b1c5ef9ccc
4 changed files with 22 additions and 3 deletions
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14
src/core/evaluator.js
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@ -475,16 +475,24 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
return this.fontCache.get(fontRef);
}
font = xref.fetchIfRef(fontRef);
if (!isDict(font)) {
return errorFont();
}
this.fontCache.put(fontRef, font);
// Workaround for bad PDF generators that doesn't reference fonts
// properly, i.e. by not using an object identifier.
// Check if the fontRef is a Dict (as opposed to a standard object),
// in which case we don't cache the font and instead reference it by
// fontName in font.loadedName below.
var fontRefIsDict = isDict(fontRef);
if (!fontRefIsDict) {
this.fontCache.put(fontRef, font);
}
// keep track of each font we translated so the caller can
// load them asynchronously before calling display on a page
font.loadedName = 'g_font_' + fontRef.num + '_' + fontRef.gen;
font.loadedName = 'g_font_' + (fontRefIsDict ?
fontName.replace(/\W/g, '') : (fontRef.num + '_' + fontRef.gen));
if (!font.translated) {
var translated;