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Merge pull request #2557 from mduan/issue2391-invalid-font

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Default to a built-in font if an invalid non-embedded font is encountered
This commit is contained in:
Brendan Dahl 2013-01-18 12:35:59 -08:00
commit 45daf4e936
4 changed files with 161 additions and 3 deletions
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27
src/evaluator.js
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@ -1089,9 +1089,30 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
properties.widths = glyphsWidths;
},
isSerifFont: function PartialEvaluator_isSerifFont(baseFontName) {
// Simulating descriptor flags attribute
var fontNameWoStyle = baseFontName.split('-')[0];
return (fontNameWoStyle in serifFonts) ||
(fontNameWoStyle.search(/serif/gi) !== -1);
},
getBaseFontMetrics: function PartialEvaluator_getBaseFontMetrics(name) {
var defaultWidth = 0, widths = [], monospace = false;
var glyphWidths = Metrics[stdFontMap[name] || name];
var lookupName = stdFontMap[name] || name;
if (!(lookupName in Metrics)) {
// Use default fonts for looking up font metrics if the passed
// font is not a base font
if (this.isSerifFont(name)) {
lookupName = 'Times-Roman';
} else {
lookupName = 'Helvetica';
}
}
var glyphWidths = Metrics[lookupName];
if (isNum(glyphWidths)) {
defaultWidth = glyphWidths;
monospace = true;
@ -1153,8 +1174,8 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
// Simulating descriptor flags attribute
var fontNameWoStyle = baseFontName.split('-')[0];
var flags = (serifFonts[fontNameWoStyle] ||
(fontNameWoStyle.search(/serif/gi) != -1) ? FontFlags.Serif : 0) |
var flags = (
this.isSerifFont(fontNameWoStyle) ? FontFlags.Serif : 0) |
(metrics.monospace ? FontFlags.FixedPitch : 0) |
(symbolsFonts[fontNameWoStyle] ? FontFlags.Symbolic :
FontFlags.Nonsymbolic);