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Support standards fonts

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This commit is contained in:
Vivien Nicolas 2011-07-25 16:42:46 +02:00
parent 9d6eb079f3
commit aa41a75f6e
2 changed files with 91 additions and 30 deletions
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85
fonts.js
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@ -15,11 +15,51 @@ var kMaxFontFileSize = 200000;
var kMaxWaitForFontFace = 1000;
/**
* Hold a map of decoded fonts and of the standard fourteen Type1 fonts and
* their acronyms.
* TODO Add the standard fourteen Type1 fonts list by default
* http://cgit.freedesktop.org/poppler/poppler/tree/poppler/GfxFont.cc#n65
* Hold a map of decoded fonts and of the standard fourteen Type1
* fonts and their acronyms.
*/
var stdFontMap = {
"Arial": "Helvetica",
"Arial_Bold": "Helvetica-Bold",
"Arial_BoldItalic": "Helvetica-BoldOblique",
"Arial_Italic": "Helvetica-Oblique",
"Arial_BoldItalicMT": "Helvetica-BoldOblique",
"Arial_BoldMT": "Helvetica-Bold",
"Arial_ItalicMT": "Helvetica-Oblique",
"ArialMT": "Helvetica",
"Courier_Bold": "Courier-Bold",
"Courier_BoldItalic": "Courier-BoldOblique",
"Courier_Italic": "Courier-Oblique",
"CourierNew": "Courier",
"CourierNew_Bold": "Courier-Bold",
"CourierNew_BoldItalic": "Courier-BoldOblique",
"CourierNew_Italic": "Courier-Oblique",
"CourierNewPS_BoldItalicMT": "Courier-BoldOblique",
"CourierNewPS_BoldMT": "Courier-Bold",
"CourierNewPS_ItalicMT": "Courier-Oblique",
"CourierNewPSMT": "Courier",
"Helvetica_Bold": "Helvetica-Bold",
"Helvetica_BoldItalic": "Helvetica-BoldOblique",
"Helvetica_Italic": "Helvetica-Oblique",
"Symbol_Bold": "Symbol",
"Symbol_BoldItalic": "Symbol",
"Symbol_Italic": "Symbol",
"TimesNewRoman": "Times-Roman",
"TimesNewRoman_Bold": "Times-Bold",
"TimesNewRoman_BoldItalic": "Times-BoldItalic",
"TimesNewRoman_Italic": "Times-Italic",
"TimesNewRomanPS": "Times-Roman",
"TimesNewRomanPS_Bold": "Times-Bold",
"TimesNewRomanPS_BoldItalic": "Times-BoldItalic",
"TimesNewRomanPS_BoldItalicMT": "Times-BoldItalic",
"TimesNewRomanPS_BoldMT": "Times-Bold",
"TimesNewRomanPS_Italic": "Times-Italic",
"TimesNewRomanPS_ItalicMT": "Times-Italic",
"TimesNewRomanPSMT": "Times-Roman",
"TimesNewRomanPSMT_Bold": "Times-Bold",
"TimesNewRomanPSMT_BoldItalic": "Times-BoldItalic",
"TimesNewRomanPSMT_Italic": "Times-Italic"
};
var FontMeasure = (function FontMeasure() {
var kScalePrecision = 50;
@ -39,7 +79,12 @@ var FontMeasure = (function FontMeasure() {
measureCache = null
}
ctx.font = (size * kScalePrecision) + 'px "' + font.loadedName + '"';
var name = font.loadedName;
var bold = font.bold ? "bold" : "normal";
var italic = font.italic ? "italic" : "normal";
size *= kScalePrecision;
var rule = bold + " " + italic + " " + size + 'px "' + name + '"';
ctx.font = rule;
},
measureText: function fonts_measureText(text) {
var width;
@ -78,19 +123,20 @@ var FontLoader = {
var font = fonts[i];
var obj = new Font(font.name, font.file, font.properties);
obj.loading = true;
objs.push(obj);
var str = '';
var data = obj.data;
var length = data.length;
for (var j = 0; j < length; j++)
str += String.fromCharCode(data[j]);
if (data) {
var length = data.length;
for (var j = 0; j < length; j++)
str += String.fromCharCode(data[j]);
var rule = isWorker ? obj.bindWorker(str) : obj.bindDOM(str);
if (rule) {
rules.push(rule);
names.push(obj.loadedName);
var rule = isWorker ? obj.bindWorker(str) : obj.bindDOM(str);
if (rule) {
rules.push(rule);
names.push(obj.loadedName);
}
}
}
@ -350,6 +396,16 @@ var Font = (function Font() {
// to avoid the cost of waiting for it be be loaded by the platform.
if (properties.ignore) {
this.loadedName = 'Arial';
this.loading = false;
return;
}
if (!file) {
var fontName = stdFontMap[name];
this.bold = (fontName.indexOf("Bold") != -1);
this.italic = (fontName.indexOf("Oblique") != -1);
this.loadedName = fontName.split("-")[0];
this.loading = false;
return;
}
@ -385,10 +441,11 @@ var Font = (function Font() {
}
this.data = data;
this.textMatrix = properties.textMatrix || IDENTITY_MATRIX;
this.type = properties.type;
this.textMatrix = properties.textMatrix;
this.loadedName = getUniqueName();
this.compositeFont = properties.compositeFont;
this.loading = true;
};
var numFonts = 0;