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Merge pull request #53 from vingtetun/master

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Merge TTF font rewriting to pass the font sanitization pass.
This commit is contained in:
Andreas Gal 2011-06-22 11:42:06 -07:00
commit 5585c6a5fe
2 changed files with 95 additions and 29 deletions
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pdf.js
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@ -2362,7 +2362,7 @@ var CanvasGraphics = (function() {
// Fonts with an embedded cmap but without any assignment in
// it are not yet supported, so ask the fonts loader to ignore
// them to not pay a stupid one sec latence.
var ignoreFont = true;
var ignoreFont = false;
var encodingMap = {};
var charset = [];
@ -2406,20 +2406,24 @@ var CanvasGraphics = (function() {
}
}
} else if (fontDict.has("ToUnicode")) {
encodingMap = {empty: true};
var cmapObj = xref.fetchIfRef(fontDict.get("ToUnicode"));
if (IsName(cmapObj)) {
error("ToUnicode file cmap translation not implemented");
} else if (IsStream(cmapObj)) {
var encoding = Encodings["WinAnsiEncoding"];
var firstChar = xref.fetchIfRef(fontDict.get("FirstChar"));
for (var i = firstChar; i < encoding.length; i++)
encodingMap[i] = new Name(encoding[i]);
var tokens = [];
var token = "";
var buffer = cmapObj.ensureBuffer ? cmapObj.ensureBuffer() : cmapObj;
var cmap = cmapObj.getBytes(buffer.byteLength);
var length = cmapObj.length;
if (cmapObj instanceof FlateStream) {
cmapObj.readBlock();
length = cmapObj.bufferLength;
}
var cmap = cmapObj.getBytes(length);
for (var i =0; i < cmap.length; i++) {
var byte = cmap[i];
if (byte == 0x20 || byte == 0x0A || byte == 0x3C || byte == 0x3E) {
@ -2446,8 +2450,10 @@ var CanvasGraphics = (function() {
var code = parseInt("0x" + tokens[j+2]);
for (var k = startRange; k <= endRange; k++) {
encodingMap[k] = GlyphsUnicode[encoding[code]];
charset.push(encoding[code++]);
// The encoding mapping table will be filled
// later during the building phase
//encodingMap[k] = GlyphsUnicode[encoding[code]];
charset.push(encoding[code++] || ".notdef");
}
}
break;
@ -2752,7 +2758,7 @@ var CanvasGraphics = (function() {
}
this.current.fontSize = size;
this.ctx.font = this.current.fontSize +'px "' + fontName + '"';
this.ctx.font = this.current.fontSize +'px "' + fontName + '", Symbol';
},
setTextRenderingMode: function(mode) {
TODO("text rendering mode");