Script này sẽ không được không được cài đặt trực tiếp. Nó là một thư viện cho các script khác để bao gồm các chỉ thị meta
// @require https://update.greasyfork.org/scripts/466179/1189955/Typr%E5%BA%93.js
var Typr = {};
Typr["parse"] = function(buff)
{
var readFont = function(data, idx, offset,tmap) {
var bin = Typr["B"];
var T = Typr["T"];
var prsr = {
"cmap":T.cmap,
"head":T.head,
"hhea":T.hhea,
"maxp":T.maxp,
"hmtx":T.hmtx,
"name":T.name,
"OS/2":T.OS2,
"post":T.post,
"loca":T.loca,
"kern":T.kern,
"glyf":T.glyf,
"CFF ":T.CFF,
/*
"GPOS",
"GSUB",
"GDEF",*/
"SVG ":T.SVG
//"VORG",
};
var obj = {"_data":data, "_index":idx, "_offset":offset};
for(var t in prsr) {
var tab = Typr["findTable"](data, t, offset);
if(tab) {
var off=tab[0], tobj = tmap[off];
if(tobj==null) tobj = prsr[t].parseTab(data, off, tab[1], obj);
obj[t] = tmap[off] = tobj;
}
}
return obj;
}
var bin = Typr["B"];
var data = new Uint8Array(buff);
var tmap = {};
var tag = bin.readASCII(data, 0, 4);
if(tag=="ttcf") {
var offset = 4;
var majV = bin.readUshort(data, offset); offset+=2;
var minV = bin.readUshort(data, offset); offset+=2;
var numF = bin.readUint (data, offset); offset+=4;
var fnts = [];
for(var i=0; i<numF; i++) {
var foff = bin.readUint (data, offset); offset+=4;
fnts.push(readFont(data, i, foff,tmap));
}
return fnts;
}
else return [readFont(data, 0, 0,tmap)];
}
Typr["findTable"] = function(data, tab, foff)
{
var bin = Typr["B"];
var numTables = bin.readUshort(data, foff+4);
var offset = foff+12;
for(var i=0; i<numTables; i++)
{
var tag = bin.readASCII(data, offset, 4);
var checkSum = bin.readUint (data, offset+ 4);
var toffset = bin.readUint (data, offset+ 8);
var length = bin.readUint (data, offset+12);
if(tag==tab) return [toffset,length];
offset+=16;
}
return null;
}
/*
Typr["splitBy"] = function(data,tag) {
data = new Uint8Array(data); console.log(data.slice(0,64));
var bin = Typr["B"];
var ttcf = bin.readASCII(data, 0, 4); if(ttcf!="ttcf") return {};
var offset = 8;
var numF = bin.readUint (data, offset); offset+=4;
var colls = [], used={};
for(var i=0; i<numF; i++) {
var foff = bin.readUint (data, offset); offset+=4;
var toff = Typr["findTable"](data,tag,foff)[0];
if(used[toff]==null) used[toff] = [];
used[toff].push([foff,bin.readUshort(data,foff+4)]); // font offset, numTables
}
for(var toff in used) {
var offs = used[toff];
var hlen = 12+4*offs.length;
var out = new Uint8Array(hlen);
for(var i=0; i<8; i++) out[i]=data[i];
bin.writeUint(out,8,offs.length);
for(var i=0; i<offs.length; i++) hlen += 12+offs[i][1]*16;
var hdrs = [out], tabs = [], hoff=out.length, toff=hlen, noffs={};
for(var i=0; i<offs.length; i++) {
bin.writeUint(out, 12+i*4, hoff); hoff+=12+offs[i][1]*16;
toff = Typr["_cutFont"](data, offs[i][0], hdrs, tabs, toff, noffs);
}
colls.push(Typr["_joinArrs"](hdrs.concat(tabs)));
}
return colls;
}
Typr["splitFonts"] = function(data) {
data = new Uint8Array(data);
var bin = Typr["B"];
var ttcf = bin.readASCII(data, 0, 4); if(ttcf!="ttcf") return {};
var offset = 8;
var numF = bin.readUint (data, offset); offset+=4;
var fnts = [];
for(var i=0; i<numF; i++) {
var foff = bin.readUint (data, offset); offset+=4;
fnts.push(Typr._cutFont(data, foff));
break;
}
return fnts;
}
Typr["_cutFont"] = function(data,foff,hdrs,tabs,toff, noffs) {
var bin = Typr["B"];
var numTables = bin.readUshort(data, foff+4);
var out = new Uint8Array(12+numTables*16); hdrs.push(out);
for(var i=0; i<12; i++) out[i]=data[foff+i]; //console.log(out);
var off = 12;
for(var i=0; i<numTables; i++)
{
var tag = bin.readASCII(data, foff+off, 4);
var checkSum = bin.readUint (data, foff+off+ 4);
var toffset = bin.readUint (data, foff+off+ 8);
var length = bin.readUint (data, foff+off+12);
while((length&3)!=0) length++;
for(var j=0; j<16; j++) out[off+j]=data[foff+off+j];
if(noffs[toffset]!=null) bin.writeUint(out,off+8,noffs[toffset]);
else {
noffs[toffset] = toff;
bin.writeUint(out, off+8, toff);
tabs.push(new Uint8Array(data.buffer, toffset, length)); toff+=length;
}
off+=16;
}
return toff;
}
Typr["_joinArrs"] = function(tabs) {
var len = 0;
for(var i=0; i<tabs.length; i++) len+=tabs[i].length;
var out = new Uint8Array(len), ooff=0;
for(var i=0; i<tabs.length; i++) {
var tab = tabs[i];
for(var j=0; j<tab.length; j++) out[ooff+j]=tab[j];
ooff+=tab.length;
}
return out;
}
*/
Typr["T"]={};
Typr["B"] = {
readFixed : function(data, o)
{
return ((data[o]<<8) | data[o+1]) + (((data[o+2]<<8)|data[o+3])/(256*256+4));
},
readF2dot14 : function(data, o)
{
var num = Typr["B"].readShort(data, o);
return num / 16384;
},
readInt : function(buff, p)
{
//if(p>=buff.length) throw "error";
var a = Typr["B"].t.uint8;
a[0] = buff[p+3];
a[1] = buff[p+2];
a[2] = buff[p+1];
a[3] = buff[p];
return Typr["B"].t.int32[0];
},
readInt8 : function(buff, p)
{
//if(p>=buff.length) throw "error";
var a = Typr["B"].t.uint8;
a[0] = buff[p];
return Typr["B"].t.int8[0];
},
readShort : function(buff, p)
{
//if(p>=buff.length) throw "error";
var a = Typr["B"].t.uint8;
a[1] = buff[p]; a[0] = buff[p+1];
return Typr["B"].t.int16[0];
},
readUshort : function(buff, p)
{
//if(p>=buff.length) throw "error";
return (buff[p]<<8) | buff[p+1];
},
writeUshort : function(buff, p, n)
{
buff[p] = (n>>8)&255; buff[p+1] = n&255;
},
readUshorts : function(buff, p, len)
{
var arr = [];
for(var i=0; i<len; i++) {
var v = Typr["B"].readUshort(buff, p+i*2); //if(v==932) console.log(p+i*2);
arr.push(v);
}
return arr;
},
readUint : function(buff, p)
{
//if(p>=buff.length) throw "error";
var a = Typr["B"].t.uint8;
a[3] = buff[p]; a[2] = buff[p+1]; a[1] = buff[p+2]; a[0] = buff[p+3];
return Typr["B"].t.uint32[0];
},
writeUint: function(buff, p, n)
{
buff[p] = (n>>24)&255; buff[p+1] = (n>>16)&255; buff[p+2] = (n>>8)&255; buff[p+3] = (n>>0)&255;
},
readUint64 : function(buff, p)
{
//if(p>=buff.length) throw "error";
return (Typr["B"].readUint(buff, p)*(0xffffffff+1)) + Typr["B"].readUint(buff, p+4);
},
readASCII : function(buff, p, l) // l : length in Characters (not Bytes)
{
//if(p>=buff.length) throw "error";
var s = "";
for(var i = 0; i < l; i++) s += String.fromCharCode(buff[p+i]);
return s;
},
writeASCII : function(buff, p, s) // l : length in Characters (not Bytes)
{
for(var i = 0; i < s.length; i++)
buff[p+i] = s.charCodeAt(i);
},
readUnicode : function(buff, p, l)
{
//if(p>=buff.length) throw "error";
var s = "";
for(var i = 0; i < l; i++)
{
var c = (buff[p++]<<8) | buff[p++];
s += String.fromCharCode(c);
}
return s;
},
_tdec : window["TextDecoder"] ? new window["TextDecoder"]() : null,
readUTF8 : function(buff, p, l) {
var tdec = Typr["B"]._tdec;
if(tdec && p==0 && l==buff.length) return tdec["decode"](buff);
return Typr["B"].readASCII(buff,p,l);
},
readBytes : function(buff, p, l)
{
//if(p>=buff.length) throw "error";
var arr = [];
for(var i=0; i<l; i++) arr.push(buff[p+i]);
return arr;
},
readASCIIArray : function(buff, p, l) // l : length in Characters (not Bytes)
{
//if(p>=buff.length) throw "error";
var s = [];
for(var i = 0; i < l; i++)
s.push(String.fromCharCode(buff[p+i]));
return s;
},
t : function() {
var ab = new ArrayBuffer(8);
return {
buff : ab,
int8 : new Int8Array (ab),
uint8 : new Uint8Array (ab),
int16 : new Int16Array (ab),
uint16 : new Uint16Array(ab),
int32 : new Int32Array (ab),
uint32 : new Uint32Array(ab)
}
}()
};
Typr["T"].CFF = {
parseTab : function(data, offset, length)
{
var bin = Typr["B"];
var CFF = Typr["T"].CFF;
data = new Uint8Array(data.buffer, offset, length);
offset = 0;
// Header
var major = data[offset]; offset++;
var minor = data[offset]; offset++;
var hdrSize = data[offset]; offset++;
var offsize = data[offset]; offset++;
//console.log(major, minor, hdrSize, offsize);
// Name INDEX
var ninds = [];
offset = CFF.readIndex(data, offset, ninds);
var names = [];
for(var i=0; i<ninds.length-1; i++) names.push(bin.readASCII(data, offset+ninds[i], ninds[i+1]-ninds[i]));
offset += ninds[ninds.length-1];
// Top DICT INDEX
var tdinds = [];
offset = CFF.readIndex(data, offset, tdinds); //console.log(tdinds);
// Top DICT Data
var topDicts = [];
for(var i=0; i<tdinds.length-1; i++) topDicts.push( CFF.readDict(data, offset+tdinds[i], offset+tdinds[i+1]) );
offset += tdinds[tdinds.length-1];
var topdict = topDicts[0];
//console.log(topdict);
// String INDEX
var sinds = [];
offset = CFF.readIndex(data, offset, sinds);
// String Data
var strings = [];
for(var i=0; i<sinds.length-1; i++) strings.push(bin.readASCII(data, offset+sinds[i], sinds[i+1]-sinds[i]));
offset += sinds[sinds.length-1];
// Global Subr INDEX (subroutines)
CFF.readSubrs(data, offset, topdict);
// charstrings
if(topdict["CharStrings"]) topdict["CharStrings"] = CFF.readBytes(data, topdict["CharStrings"]);
// CID font
if(topdict["ROS"]) {
offset = topdict["FDArray"];
var fdind = [];
offset = CFF.readIndex(data, offset, fdind);
topdict["FDArray"] = [];
for(var i=0; i<fdind.length-1; i++) {
var dict = CFF.readDict(data, offset+fdind[i], offset+fdind[i+1]);
CFF._readFDict(data, dict, strings);
topdict["FDArray"].push( dict );
}
offset += fdind[fdind.length-1];
offset = topdict["FDSelect"];
topdict["FDSelect"] = [];
var fmt = data[offset]; offset++;
if(fmt==3) {
var rns = bin.readUshort(data, offset); offset+=2;
for(var i=0; i<rns+1; i++) {
topdict["FDSelect"].push(bin.readUshort(data, offset), data[offset+2]); offset+=3;
}
}
else throw fmt;
}
// Encoding
//if(topdict["Encoding"]) topdict["Encoding"] = CFF.readEncoding(data, topdict["Encoding"], topdict["CharStrings"].length);
// charset
if(topdict["charset"] ) topdict["charset"] = CFF.readCharset (data, topdict["charset"] , topdict["CharStrings"].length);
CFF._readFDict(data, topdict, strings);
return topdict;
},
_readFDict : function(data, dict, ss) {
var CFF = Typr["T"].CFF;
var offset;
if(dict["Private"]) {
offset = dict["Private"][1];
dict["Private"] = CFF.readDict(data, offset, offset+dict["Private"][0]);
if(dict["Private"]["Subrs"]) CFF.readSubrs(data, offset+dict["Private"]["Subrs"], dict["Private"]);
}
for(var p in dict) if(["FamilyName","FontName","FullName","Notice","version","Copyright"].indexOf(p)!=-1) dict[p]=ss[dict[p] -426 + 35];
},
readSubrs : function(data, offset, obj)
{
obj["Subrs"] = Typr["T"].CFF.readBytes(data, offset);
var bias, nSubrs = obj["Subrs"].length+1;
if (false) bias = 0;
else if (nSubrs < 1240) bias = 107;
else if (nSubrs < 33900) bias = 1131;
else bias = 32768;
obj["Bias"] = bias;
},
readBytes : function(data, offset) {
var bin = Typr["B"];
var arr = [];
offset = Typr["T"].CFF.readIndex(data, offset, arr);
var subrs = [], arl = arr.length-1, no = data.byteOffset+offset;
for(var i=0; i<arl; i++) {
var ari = arr[i];
subrs.push(new Uint8Array(data.buffer, no+ari, arr[i+1]-ari));
}
return subrs;
},
tableSE : [
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
1, 2, 3, 4, 5, 6, 7, 8,
9, 10, 11, 12, 13, 14, 15, 16,
17, 18, 19, 20, 21, 22, 23, 24,
25, 26, 27, 28, 29, 30, 31, 32,
33, 34, 35, 36, 37, 38, 39, 40,
41, 42, 43, 44, 45, 46, 47, 48,
49, 50, 51, 52, 53, 54, 55, 56,
57, 58, 59, 60, 61, 62, 63, 64,
65, 66, 67, 68, 69, 70, 71, 72,
73, 74, 75, 76, 77, 78, 79, 80,
81, 82, 83, 84, 85, 86, 87, 88,
89, 90, 91, 92, 93, 94, 95, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 96, 97, 98, 99, 100, 101, 102,
103, 104, 105, 106, 107, 108, 109, 110,
0, 111, 112, 113, 114, 0, 115, 116,
117, 118, 119, 120, 121, 122, 0, 123,
0, 124, 125, 126, 127, 128, 129, 130,
131, 0, 132, 133, 0, 134, 135, 136,
137, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 138, 0, 139, 0, 0, 0, 0,
140, 141, 142, 143, 0, 0, 0, 0,
0, 144, 0, 0, 0, 145, 0, 0,
146, 147, 148, 149, 0, 0, 0, 0
],
glyphByUnicode : function(cff, code)
{
for(var i=0; i<cff["charset"].length; i++) if(cff["charset"][i]==code) return i;
return -1;
},
glyphBySE : function(cff, charcode) // glyph by standard encoding
{
if ( charcode < 0 || charcode > 255 ) return -1;
return Typr["T"].CFF.glyphByUnicode(cff, Typr["T"].CFF.tableSE[charcode]);
},
/*readEncoding : function(data, offset, num)
{
var bin = Typr["B"];
var array = ['.notdef'];
var format = data[offset]; offset++;
//console.log("Encoding");
//console.log(format);
if(format==0)
{
var nCodes = data[offset]; offset++;
for(var i=0; i<nCodes; i++) array.push(data[offset+i]);
}
/*
else if(format==1 || format==2)
{
while(charset.length<num)
{
var first = bin.readUshort(data, offset); offset+=2;
var nLeft=0;
if(format==1) { nLeft = data[offset]; offset++; }
else { nLeft = bin.readUshort(data, offset); offset+=2; }
for(var i=0; i<=nLeft; i++) { charset.push(first); first++; }
}
}
else throw "error: unknown encoding format: " + format;
return array;
},*/
readCharset : function(data, offset, num)
{
var bin = Typr["B"];
var charset = ['.notdef'];
var format = data[offset]; offset++;
if(format==0)
{
for(var i=0; i<num; i++)
{
var first = bin.readUshort(data, offset); offset+=2;
charset.push(first);
}
}
else if(format==1 || format==2)
{
while(charset.length<num)
{
var first = bin.readUshort(data, offset); offset+=2;
var nLeft=0;
if(format==1) { nLeft = data[offset]; offset++; }
else { nLeft = bin.readUshort(data, offset); offset+=2; }
for(var i=0; i<=nLeft; i++) { charset.push(first); first++; }
}
}
else throw "error: format: " + format;
return charset;
},
readIndex : function(data, offset, inds)
{
var bin = Typr["B"];
var count = bin.readUshort(data, offset)+1; offset+=2;
var offsize = data[offset]; offset++;
if (offsize==1) for(var i=0; i<count; i++) inds.push( data[offset+i] );
else if(offsize==2) for(var i=0; i<count; i++) inds.push( bin.readUshort(data, offset+i*2) );
else if(offsize==3) for(var i=0; i<count; i++) inds.push( bin.readUint (data, offset+i*3 - 1) & 0x00ffffff );
else if(offsize==4) for(var i=0; i<count; i++) inds.push( bin.readUint (data, offset+i*4) );
else if(count!=1) throw "unsupported offset size: " + offsize + ", count: " + count;
offset += count*offsize;
return offset-1;
},
getCharString : function(data, offset, o)
{
var bin = Typr["B"];
var b0 = data[offset], b1 = data[offset+1], b2 = data[offset+2], b3 = data[offset+3], b4=data[offset+4];
var vs = 1;
var op=null, val=null;
// operand
if(b0<=20) { op = b0; vs=1; }
if(b0==12) { op = b0*100+b1; vs=2; }
//if(b0==19 || b0==20) { op = b0/*+" "+b1*/; vs=2; }
if(21 <=b0 && b0<= 27) { op = b0; vs=1; }
if(b0==28) { val = bin.readShort(data,offset+1); vs=3; }
if(29 <=b0 && b0<= 31) { op = b0; vs=1; }
if(32 <=b0 && b0<=246) { val = b0-139; vs=1; }
if(247<=b0 && b0<=250) { val = (b0-247)*256+b1+108; vs=2; }
if(251<=b0 && b0<=254) { val =-(b0-251)*256-b1-108; vs=2; }
if(b0==255) { val = bin.readInt(data, offset+1)/0xffff; vs=5; }
o.val = val!=null ? val : "o"+op;
o.size = vs;
},
readCharString : function(data, offset, length)
{
var end = offset + length;
var bin = Typr["B"];
var arr = [];
while(offset<end)
{
var b0 = data[offset], b1 = data[offset+1], b2 = data[offset+2], b3 = data[offset+3], b4=data[offset+4];
var vs = 1;
var op=null, val=null;
// operand
if(b0<=20) { op = b0; vs=1; }
if(b0==12) { op = b0*100+b1; vs=2; }
if(b0==19 || b0==20) { op = b0/*+" "+b1*/; vs=2; }
if(21 <=b0 && b0<= 27) { op = b0; vs=1; }
if(b0==28) { val = bin.readShort(data,offset+1); vs=3; }
if(29 <=b0 && b0<= 31) { op = b0; vs=1; }
if(32 <=b0 && b0<=246) { val = b0-139; vs=1; }
if(247<=b0 && b0<=250) { val = (b0-247)*256+b1+108; vs=2; }
if(251<=b0 && b0<=254) { val =-(b0-251)*256-b1-108; vs=2; }
if(b0==255) { val = bin.readInt(data, offset+1)/0xffff; vs=5; }
arr.push(val!=null ? val : "o"+op);
offset += vs;
//var cv = arr[arr.length-1];
//if(cv==undefined) throw "error";
//console.log()
}
return arr;
},
readDict : function(data, offset, end)
{
var bin = Typr["B"];
//var dict = [];
var dict = {};
var carr = [];
while(offset<end)
{
var b0 = data[offset], b1 = data[offset+1], b2 = data[offset+2], b3 = data[offset+3], b4=data[offset+4];
var vs = 1;
var key=null, val=null;
// operand
if(b0==28) { val = bin.readShort(data,offset+1); vs=3; }
if(b0==29) { val = bin.readInt (data,offset+1); vs=5; }
if(32 <=b0 && b0<=246) { val = b0-139; vs=1; }
if(247<=b0 && b0<=250) { val = (b0-247)*256+b1+108; vs=2; }
if(251<=b0 && b0<=254) { val =-(b0-251)*256-b1-108; vs=2; }
if(b0==255) { val = bin.readInt(data, offset+1)/0xffff; vs=5; throw "unknown number"; }
if(b0==30)
{
var nibs = [];
vs = 1;
while(true)
{
var b = data[offset+vs]; vs++;
var nib0 = b>>4, nib1 = b&0xf;
if(nib0 != 0xf) nibs.push(nib0); if(nib1!=0xf) nibs.push(nib1);
if(nib1==0xf) break;
}
var s = "";
var chars = [0,1,2,3,4,5,6,7,8,9,".","e","e-","reserved","-","endOfNumber"];
for(var i=0; i<nibs.length; i++) s += chars[nibs[i]];
//console.log(nibs);
val = parseFloat(s);
}
if(b0<=21) // operator
{
var keys = ["version", "Notice", "FullName", "FamilyName", "Weight", "FontBBox", "BlueValues", "OtherBlues", "FamilyBlues","FamilyOtherBlues",
"StdHW", "StdVW", "escape", "UniqueID", "XUID", "charset", "Encoding", "CharStrings", "Private", "Subrs",
"defaultWidthX", "nominalWidthX"];
key = keys[b0]; vs=1;
if(b0==12) {
var keys = [ "Copyright", "isFixedPitch", "ItalicAngle", "UnderlinePosition", "UnderlineThickness", "PaintType", "CharstringType", "FontMatrix", "StrokeWidth", "BlueScale",
"BlueShift", "BlueFuzz", "StemSnapH", "StemSnapV", "ForceBold", "","", "LanguageGroup", "ExpansionFactor", "initialRandomSeed",
"SyntheticBase", "PostScript", "BaseFontName", "BaseFontBlend", "","","", "","","",
"ROS", "CIDFontVersion", "CIDFontRevision", "CIDFontType", "CIDCount", "UIDBase", "FDArray", "FDSelect", "FontName"];
key = keys[b1]; vs=2;
}
}
if(key!=null) { dict[key] = carr.length==1 ? carr[0] : carr; carr=[]; }
else carr.push(val);
offset += vs;
}
return dict;
}
};
Typr["T"].cmap = {
parseTab : function(data, offset, length)
{
var obj = {tables:[],ids:{},off:offset};
data = new Uint8Array(data.buffer, offset, length);
offset = 0;
var offset0 = offset;
var bin = Typr["B"], rU = bin.readUshort, cmap = Typr["T"].cmap;
var version = rU(data, offset); offset += 2;
var numTables = rU(data, offset); offset += 2;
//console.log(version, numTables);
var offs = [];
for(var i=0; i<numTables; i++)
{
var platformID = rU(data, offset); offset += 2;
var encodingID = rU(data, offset); offset += 2;
var noffset = bin.readUint(data, offset); offset += 4;
var id = "p"+platformID+"e"+encodingID;
//console.log("cmap subtable", platformID, encodingID, noffset);
var tind = offs.indexOf(noffset);
if(tind==-1)
{
tind = obj.tables.length;
var subt = {};
offs.push(noffset);
//var time = Date.now();
var format = subt.format = rU(data, noffset);
if (format== 0) subt = cmap.parse0(data, noffset, subt);
//else if(format== 2) subt.off = noffset;
else if(format== 4) subt = cmap.parse4(data, noffset, subt);
else if(format== 6) subt = cmap.parse6(data, noffset, subt);
else if(format==12) subt = cmap.parse12(data,noffset, subt);
//console.log(format, Date.now()-time);
//else console.log("unknown format: "+format, platformID, encodingID, noffset);
obj.tables.push(subt);
}
if(obj.ids[id]!=null) throw "multiple tables for one platform+encoding";
obj.ids[id] = tind;
}
return obj;
},
parse0 : function(data, offset, obj)
{
var bin = Typr["B"];
offset += 2;
var len = bin.readUshort(data, offset); offset += 2;
var lang = bin.readUshort(data, offset); offset += 2;
obj.map = [];
for(var i=0; i<len-6; i++) obj.map.push(data[offset+i]);
return obj;
},
parse4 : function(data, offset, obj)
{
var bin = Typr["B"], rU = bin.readUshort, rUs = bin.readUshorts;
var offset0 = offset;
offset+=2;
var length = rU(data, offset); offset+=2;
var language = rU(data, offset); offset+=2;
var segCountX2 = rU(data, offset); offset+=2;
var segCount = segCountX2>>>1;
obj.searchRange = rU(data, offset); offset+=2;
obj.entrySelector = rU(data, offset); offset+=2;
obj.rangeShift = rU(data, offset); offset+=2;
obj.endCount = rUs(data, offset, segCount); offset += segCount*2;
offset+=2;
obj.startCount = rUs(data, offset, segCount); offset += segCount*2;
obj.idDelta = [];
for(var i=0; i<segCount; i++) {obj.idDelta.push(bin.readShort(data, offset)); offset+=2;}
obj.idRangeOffset = rUs(data, offset, segCount); offset += segCount*2;
obj.glyphIdArray = rUs(data, offset, ((offset0+length)-offset)>>>1); //offset += segCount*2;
return obj;
},
parse6 : function(data, offset, obj)
{
var bin = Typr["B"];
var offset0 = offset;
offset+=2;
var length = bin.readUshort(data, offset); offset+=2;
var language = bin.readUshort(data, offset); offset+=2;
obj.firstCode = bin.readUshort(data, offset); offset+=2;
var entryCount = bin.readUshort(data, offset); offset+=2;
obj.glyphIdArray = [];
for(var i=0; i<entryCount; i++) {obj.glyphIdArray.push(bin.readUshort(data, offset)); offset+=2;}
return obj;
},
parse12 : function(data, offset, obj)
{
var bin = Typr["B"], rU = bin.readUint;
var offset0 = offset;
offset+=4;
var length = rU(data, offset); offset+=4;
var lang = rU(data, offset); offset+=4;
var nGroups= rU(data, offset)*3; offset+=4;
var gps = obj.groups = new Uint32Array(nGroups);//new Uint32Array(data.slice(offset, offset+nGroups*12).buffer);
for(var i=0; i<nGroups; i+=3) {
gps[i ] = rU(data, offset+(i<<2) );
gps[i+1] = rU(data, offset+(i<<2)+4);
gps[i+2] = rU(data, offset+(i<<2)+8);
}
return obj;
}
};
Typr["T"].glyf = {
parseTab : function(data, offset, length, font)
{
var obj = [], ng=font["maxp"]["numGlyphs"];
for(var g=0; g<ng; g++) obj.push(null);
return obj;
},
_parseGlyf : function(font, g)
{
var bin = Typr["B"];
var data = font["_data"], loca=font["loca"];
if(loca[g]==loca[g+1]) return null;
var offset = Typr["findTable"](data, "glyf", font["_offset"])[0] + loca[g];
var gl = {};
gl.noc = bin.readShort(data, offset); offset+=2; // number of contours
gl.xMin = bin.readShort(data, offset); offset+=2;
gl.yMin = bin.readShort(data, offset); offset+=2;
gl.xMax = bin.readShort(data, offset); offset+=2;
gl.yMax = bin.readShort(data, offset); offset+=2;
if(gl.xMin>=gl.xMax || gl.yMin>=gl.yMax) return null;
if(gl.noc>0)
{
gl.endPts = [];
for(var i=0; i<gl.noc; i++) { gl.endPts.push(bin.readUshort(data,offset)); offset+=2; }
var instructionLength = bin.readUshort(data,offset); offset+=2;
if((data.length-offset)<instructionLength) return null;
gl.instructions = bin.readBytes(data, offset, instructionLength); offset+=instructionLength;
var crdnum = gl.endPts[gl.noc-1]+1;
gl.flags = [];
for(var i=0; i<crdnum; i++ )
{
var flag = data[offset]; offset++;
gl.flags.push(flag);
if((flag&8)!=0)
{
var rep = data[offset]; offset++;
for(var j=0; j<rep; j++) { gl.flags.push(flag); i++; }
}
}
gl.xs = [];
for(var i=0; i<crdnum; i++) {
var i8=((gl.flags[i]&2)!=0), same=((gl.flags[i]&16)!=0);
if(i8) { gl.xs.push(same ? data[offset] : -data[offset]); offset++; }
else
{
if(same) gl.xs.push(0);
else { gl.xs.push(bin.readShort(data, offset)); offset+=2; }
}
}
gl.ys = [];
for(var i=0; i<crdnum; i++) {
var i8=((gl.flags[i]&4)!=0), same=((gl.flags[i]&32)!=0);
if(i8) { gl.ys.push(same ? data[offset] : -data[offset]); offset++; }
else
{
if(same) gl.ys.push(0);
else { gl.ys.push(bin.readShort(data, offset)); offset+=2; }
}
}
var x = 0, y = 0;
for(var i=0; i<crdnum; i++) { x += gl.xs[i]; y += gl.ys[i]; gl.xs[i]=x; gl.ys[i]=y; }
//console.log(endPtsOfContours, instructionLength, instructions, flags, xCoordinates, yCoordinates);
}
else
{
var ARG_1_AND_2_ARE_WORDS = 1<<0;
var ARGS_ARE_XY_VALUES = 1<<1;
var ROUND_XY_TO_GRID = 1<<2;
var WE_HAVE_A_SCALE = 1<<3;
var RESERVED = 1<<4;
var MORE_COMPONENTS = 1<<5;
var WE_HAVE_AN_X_AND_Y_SCALE= 1<<6;
var WE_HAVE_A_TWO_BY_TWO = 1<<7;
var WE_HAVE_INSTRUCTIONS = 1<<8;
var USE_MY_METRICS = 1<<9;
var OVERLAP_COMPOUND = 1<<10;
var SCALED_COMPONENT_OFFSET = 1<<11;
var UNSCALED_COMPONENT_OFFSET = 1<<12;
gl.parts = [];
var flags;
do {
flags = bin.readUshort(data, offset); offset += 2;
var part = { m:{a:1,b:0,c:0,d:1,tx:0,ty:0}, p1:-1, p2:-1 }; gl.parts.push(part);
part.glyphIndex = bin.readUshort(data, offset); offset += 2;
if ( flags & ARG_1_AND_2_ARE_WORDS) {
var arg1 = bin.readShort(data, offset); offset += 2;
var arg2 = bin.readShort(data, offset); offset += 2;
} else {
var arg1 = bin.readInt8(data, offset); offset ++;
var arg2 = bin.readInt8(data, offset); offset ++;
}
if(flags & ARGS_ARE_XY_VALUES) { part.m.tx = arg1; part.m.ty = arg2; }
else { part.p1=arg1; part.p2=arg2; }
//part.m.tx = arg1; part.m.ty = arg2;
//else { throw "params are not XY values"; }
if ( flags & WE_HAVE_A_SCALE ) {
part.m.a = part.m.d = bin.readF2dot14(data, offset); offset += 2;
} else if ( flags & WE_HAVE_AN_X_AND_Y_SCALE ) {
part.m.a = bin.readF2dot14(data, offset); offset += 2;
part.m.d = bin.readF2dot14(data, offset); offset += 2;
} else if ( flags & WE_HAVE_A_TWO_BY_TWO ) {
part.m.a = bin.readF2dot14(data, offset); offset += 2;
part.m.b = bin.readF2dot14(data, offset); offset += 2;
part.m.c = bin.readF2dot14(data, offset); offset += 2;
part.m.d = bin.readF2dot14(data, offset); offset += 2;
}
} while ( flags & MORE_COMPONENTS )
if (flags & WE_HAVE_INSTRUCTIONS){
var numInstr = bin.readUshort(data, offset); offset += 2;
gl.instr = [];
for(var i=0; i<numInstr; i++) { gl.instr.push(data[offset]); offset++; }
}
}
return gl;
}
};
Typr["T"].head = {
parseTab : function(data, offset, length)
{
var bin = Typr["B"];
var obj = {};
var tableVersion = bin.readFixed(data, offset); offset += 4;
obj["fontRevision"] = bin.readFixed(data, offset); offset += 4;
var checkSumAdjustment = bin.readUint(data, offset); offset += 4;
var magicNumber = bin.readUint(data, offset); offset += 4;
obj["flags"] = bin.readUshort(data, offset); offset += 2;
obj["unitsPerEm"] = bin.readUshort(data, offset); offset += 2;
obj["created"] = bin.readUint64(data, offset); offset += 8;
obj["modified"] = bin.readUint64(data, offset); offset += 8;
obj["xMin"] = bin.readShort(data, offset); offset += 2;
obj["yMin"] = bin.readShort(data, offset); offset += 2;
obj["xMax"] = bin.readShort(data, offset); offset += 2;
obj["yMax"] = bin.readShort(data, offset); offset += 2;
obj["macStyle"] = bin.readUshort(data, offset); offset += 2;
obj["lowestRecPPEM"] = bin.readUshort(data, offset); offset += 2;
obj["fontDirectionHint"] = bin.readShort(data, offset); offset += 2;
obj["indexToLocFormat"] = bin.readShort(data, offset); offset += 2;
obj["glyphDataFormat"] = bin.readShort(data, offset); offset += 2;
return obj;
}
};
Typr["T"].hhea = {
parseTab : function(data, offset, length)
{
var bin = Typr["B"];
var obj = {};
var tableVersion = bin.readFixed(data, offset); offset += 4;
var keys = ["ascender","descender","lineGap",
"advanceWidthMax","minLeftSideBearing","minRightSideBearing","xMaxExtent",
"caretSlopeRise","caretSlopeRun","caretOffset",
"res0","res1","res2","res3",
"metricDataFormat","numberOfHMetrics" ];
for(var i=0; i< keys.length; i++) {
var key = keys[i];
var func = (key=="advanceWidthMax" || key=="numberOfHMetrics")?bin.readUshort:bin.readShort;
obj[key]=func(data,offset+i*2);
}
return obj;
}
};
Typr["T"].hmtx = {
parseTab : function(data, offset, length, font)
{
var bin = Typr["B"];
var aWidth = [];
var lsBearing = [];
var nG = font["maxp"]["numGlyphs"], nH = font["hhea"]["numberOfHMetrics"];
var aw = 0, lsb = 0, i=0;
while(i<nH) { aw=bin.readUshort(data, offset+(i<<2)); lsb=bin.readShort(data, offset+(i<<2)+2); aWidth.push(aw); lsBearing.push(lsb); i++; }
while(i<nG) { aWidth.push(aw); lsBearing.push(lsb); i++; }
return {aWidth:aWidth, lsBearing:lsBearing};
}
};
Typr["T"].kern = {
parseTab : function(data, offset, length, font)
{
var bin = Typr["B"], kern=Typr["T"].kern;
var version = bin.readUshort(data, offset);
if(version==1) return kern.parseV1(data, offset, length, font);
var nTables = bin.readUshort(data, offset+2); offset+=4;
var map = {glyph1: [], rval:[]};
for(var i=0; i<nTables; i++)
{
offset+=2; // skip version
var length = bin.readUshort(data, offset); offset+=2;
var coverage = bin.readUshort(data, offset); offset+=2;
var format = coverage>>>8;
/* I have seen format 128 once, that's why I do */ format &= 0xf;
if(format==0) offset = kern.readFormat0(data, offset, map);
//else throw "unknown kern table format: "+format;
}
return map;
},
parseV1 : function(data, offset, length, font)
{
var bin = Typr["B"], kern=Typr["T"].kern;
var version = bin.readFixed(data, offset); // 0x00010000
var nTables = bin.readUint (data, offset+4); offset+=8;
var map = {glyph1: [], rval:[]};
for(var i=0; i<nTables; i++)
{
var length = bin.readUint(data, offset); offset+=4;
var coverage = bin.readUshort(data, offset); offset+=2;
var tupleIndex = bin.readUshort(data, offset); offset+=2;
var format = coverage&0xff;
if(format==0) offset = kern.readFormat0(data, offset, map);
//else throw "unknown kern table format: "+format;
}
return map;
},
readFormat0 : function(data, offset, map)
{
var bin = Typr["B"], rUs = bin.readUshort;
var pleft = -1;
var nPairs = rUs(data, offset);
var searchRange = rUs(data, offset+2);
var entrySelector = rUs(data, offset+4);
var rangeShift = rUs(data, offset+6); offset+=8;
for(var j=0; j<nPairs; j++)
{
var left = rUs(data, offset); offset+=2;
var right = rUs(data, offset); offset+=2;
var value = bin.readShort (data, offset); offset+=2;
if(left!=pleft) { map.glyph1.push(left); map.rval.push({ glyph2:[], vals:[] }) }
var rval = map.rval[map.rval.length-1];
rval.glyph2.push(right); rval.vals.push(value);
pleft = left;
}
return offset;
}
};
Typr["T"].loca = {
parseTab : function(data, offset, length, font)
{
var bin = Typr["B"];
var obj = [];
var ver = font["head"]["indexToLocFormat"];
var len = font["maxp"]["numGlyphs"]+1;
if(ver==0) for(var i=0; i<len; i++) obj.push(bin.readUshort(data, offset+(i<<1))<<1);
if(ver==1) for(var i=0; i<len; i++) obj.push(bin.readUint (data, offset+(i<<2)) );
return obj;
}
};
Typr["T"].maxp = {
parseTab : function(data, offset, length)
{
//console.log(data.length, offset, length);
var bin = Typr["B"], rU=bin.readUshort;
var obj = {};
// both versions 0.5 and 1.0
var ver = bin.readUint(data, offset); offset += 4;
obj["numGlyphs"] = rU(data, offset); offset += 2;
// only 1.0
/*
if(ver == 0x00010000) {
obj.maxPoints = rU(data, offset); offset += 2;
obj.maxContours = rU(data, offset); offset += 2;
obj.maxCompositePoints = rU(data, offset); offset += 2;
obj.maxCompositeContours = rU(data, offset); offset += 2;
obj.maxZones = rU(data, offset); offset += 2;
obj.maxTwilightPoints = rU(data, offset); offset += 2;
obj.maxStorage = rU(data, offset); offset += 2;
obj.maxFunctionDefs = rU(data, offset); offset += 2;
obj.maxInstructionDefs = rU(data, offset); offset += 2;
obj.maxStackElements = rU(data, offset); offset += 2;
obj.maxSizeOfInstructions = rU(data, offset); offset += 2;
obj.maxComponentElements = rU(data, offset); offset += 2;
obj.maxComponentDepth = rU(data, offset); offset += 2;
}
*/
return obj;
}
};
Typr["T"].name = {
parseTab : function(data, offset, length)
{
var bin = Typr["B"];
var obj = {};
var format = bin.readUshort(data, offset); offset += 2;
var count = bin.readUshort(data, offset); offset += 2;
var stringOffset = bin.readUshort(data, offset); offset += 2;
//console.log(format,count);
var names = [
"copyright",
"fontFamily",
"fontSubfamily",
"ID",
"fullName",
"version",
"postScriptName",
"trademark",
"manufacturer",
"designer",
"description",
"urlVendor",
"urlDesigner",
"licence",
"licenceURL",
"---",
"typoFamilyName",
"typoSubfamilyName",
"compatibleFull",
"sampleText",
"postScriptCID",
"wwsFamilyName",
"wwsSubfamilyName",
"lightPalette",
"darkPalette"
];
var offset0 = offset;
var rU = bin.readUshort;
for(var i=0; i<count; i++)
{
var platformID = rU(data, offset); offset += 2;
var encodingID = rU(data, offset); offset += 2;
var languageID = rU(data, offset); offset += 2;
var nameID = rU(data, offset); offset += 2;
var slen = rU(data, offset); offset += 2;
var noffset = rU(data, offset); offset += 2;
//console.log(platformID, encodingID, languageID.toString(16), nameID, length, noffset);
var soff = offset0 + count*12 + noffset;
var str;
if(false){}
else if(platformID == 0) str = bin.readUnicode(data, soff, slen/2);
else if(platformID == 3 && encodingID == 0) str = bin.readUnicode(data, soff, slen/2);
else if(encodingID == 0) str = bin.readASCII (data, soff, slen);
else if(encodingID == 1) str = bin.readUnicode(data, soff, slen/2);
else if(encodingID == 3) str = bin.readUnicode(data, soff, slen/2);
else if(encodingID == 4) str = bin.readUnicode(data, soff, slen/2);
else if(encodingID ==10) str = bin.readUnicode(data, soff, slen/2);
else if(platformID == 1) { str = bin.readASCII(data, soff, slen); console.log("reading unknown MAC encoding "+encodingID+" as ASCII") }
else {
console.log("unknown encoding "+encodingID + ", platformID: "+platformID);
str = bin.readASCII(data, soff, slen);
}
var tid = "p"+platformID+","+(languageID).toString(16);//Typr._platforms[platformID];
if(obj[tid]==null) obj[tid] = {};
obj[tid][names[nameID]] = str;
obj[tid]["_lang"] = languageID;
//console.log(tid, obj[tid]);
}
/*
if(format == 1)
{
var langTagCount = bin.readUshort(data, offset); offset += 2;
for(var i=0; i<langTagCount; i++)
{
var length = bin.readUshort(data, offset); offset += 2;
var noffset = bin.readUshort(data, offset); offset += 2;
}
}
*/
//console.log(obj);
var psn = "postScriptName";
for(var p in obj) if(obj[p][psn]!=null && obj[p]["_lang"]==0x0409) return obj[p]; // United States
for(var p in obj) if(obj[p][psn]!=null && obj[p]["_lang"]==0x0000) return obj[p]; // Universal
for(var p in obj) if(obj[p][psn]!=null && obj[p]["_lang"]==0x0c0c) return obj[p]; // Canada
for(var p in obj) if(obj[p][psn]!=null) return obj[p];
var out;
for(var p in obj) { out=obj[p]; break; }
console.log("returning name table with languageID "+ out._lang);
if(out[psn]==null && out["ID"]!=null) out[psn]=out["ID"];
return out;
}
}
Typr["T"].OS2 = {
parseTab : function(data, offset, length)
{
var bin = Typr["B"];
var ver = bin.readUshort(data, offset); offset += 2;
var OS2 = Typr["T"].OS2;
var obj = {};
if (ver==0) OS2.version0(data, offset, obj);
else if(ver==1) OS2.version1(data, offset, obj);
else if(ver==2 || ver==3 || ver==4) OS2.version2(data, offset, obj);
else if(ver==5) OS2.version5(data, offset, obj);
else throw "unknown OS/2 table version: "+ver;
return obj;
},
version0 : function(data, offset, obj)
{
var bin = Typr["B"];
obj["xAvgCharWidth"] = bin.readShort(data, offset); offset += 2;
obj["usWeightClass"] = bin.readUshort(data, offset); offset += 2;
obj["usWidthClass"] = bin.readUshort(data, offset); offset += 2;
obj["fsType"] = bin.readUshort(data, offset); offset += 2;
obj["ySubscriptXSize"] = bin.readShort(data, offset); offset += 2;
obj["ySubscriptYSize"] = bin.readShort(data, offset); offset += 2;
obj["ySubscriptXOffset"] = bin.readShort(data, offset); offset += 2;
obj["ySubscriptYOffset"] = bin.readShort(data, offset); offset += 2;
obj["ySuperscriptXSize"] = bin.readShort(data, offset); offset += 2;
obj["ySuperscriptYSize"] = bin.readShort(data, offset); offset += 2;
obj["ySuperscriptXOffset"] = bin.readShort(data, offset); offset += 2;
obj["ySuperscriptYOffset"] = bin.readShort(data, offset); offset += 2;
obj["yStrikeoutSize"] = bin.readShort(data, offset); offset += 2;
obj["yStrikeoutPosition"] = bin.readShort(data, offset); offset += 2;
obj["sFamilyClass"] = bin.readShort(data, offset); offset += 2;
obj["panose"] = bin.readBytes(data, offset, 10); offset += 10;
obj["ulUnicodeRange1"] = bin.readUint(data, offset); offset += 4;
obj["ulUnicodeRange2"] = bin.readUint(data, offset); offset += 4;
obj["ulUnicodeRange3"] = bin.readUint(data, offset); offset += 4;
obj["ulUnicodeRange4"] = bin.readUint(data, offset); offset += 4;
obj["achVendID"] = bin.readASCII(data, offset, 4); offset += 4;
obj["fsSelection"] = bin.readUshort(data, offset); offset += 2;
obj["usFirstCharIndex"] = bin.readUshort(data, offset); offset += 2;
obj["usLastCharIndex"] = bin.readUshort(data, offset); offset += 2;
obj["sTypoAscender"] = bin.readShort(data, offset); offset += 2;
obj["sTypoDescender"] = bin.readShort(data, offset); offset += 2;
obj["sTypoLineGap"] = bin.readShort(data, offset); offset += 2;
obj["usWinAscent"] = bin.readUshort(data, offset); offset += 2;
obj["usWinDescent"] = bin.readUshort(data, offset); offset += 2;
return offset;
},
version1 : function(data, offset, obj)
{
var bin = Typr["B"];
offset = Typr["T"].OS2.version0(data, offset, obj);
obj["ulCodePageRange1"] = bin.readUint(data, offset); offset += 4;
obj["ulCodePageRange2"] = bin.readUint(data, offset); offset += 4;
return offset;
},
version2 : function(data, offset, obj)
{
var bin = Typr["B"], rU=bin.readUshort;
offset = Typr["T"].OS2.version1(data, offset, obj);
obj["sxHeight"] = bin.readShort(data, offset); offset += 2;
obj["sCapHeight"] = bin.readShort(data, offset); offset += 2;
obj["usDefault"] = rU(data, offset); offset += 2;
obj["usBreak"] = rU(data, offset); offset += 2;
obj["usMaxContext"] = rU(data, offset); offset += 2;
return offset;
},
version5 : function(data, offset, obj)
{
var rU = Typr["B"].readUshort;
offset = Typr["T"].OS2.version2(data, offset, obj);
obj["usLowerOpticalPointSize"] = rU(data, offset); offset += 2;
obj["usUpperOpticalPointSize"] = rU(data, offset); offset += 2;
return offset;
}
}
Typr["T"].post = {
parseTab : function(data, offset, length)
{
var bin = Typr["B"];
var obj = {};
obj["version"] = bin.readFixed(data, offset); offset+=4;
obj["italicAngle"] = bin.readFixed(data, offset); offset+=4;
obj["underlinePosition"] = bin.readShort(data, offset); offset+=2;
obj["underlineThickness"] = bin.readShort(data, offset); offset+=2;
return obj;
}
};
Typr["T"].SVG = {
parseTab : function(data, offset, length)
{
var bin = Typr["B"];
var obj = { entries: []};
var offset0 = offset;
var tableVersion = bin.readUshort(data, offset); offset += 2;
var svgDocIndexOffset = bin.readUint(data, offset); offset += 4;
var reserved = bin.readUint(data, offset); offset += 4;
offset = svgDocIndexOffset + offset0;
var numEntries = bin.readUshort(data, offset); offset += 2;
for(var i=0; i<numEntries; i++)
{
var startGlyphID = bin.readUshort(data, offset); offset += 2;
var endGlyphID = bin.readUshort(data, offset); offset += 2;
var svgDocOffset = bin.readUint (data, offset); offset += 4;
var svgDocLength = bin.readUint (data, offset); offset += 4;
var sbuf = new Uint8Array(data.buffer, offset0 + svgDocOffset + svgDocIndexOffset, svgDocLength);
var svg = bin.readUTF8(sbuf, 0, sbuf.length);
for(var f=startGlyphID; f<=endGlyphID; f++) {
obj.entries[f] = svg;
}
}
return obj;
}
};
Typr["U"] = {
"shape" : function(font,str,ltr) {
var getGlyphPosition = function(font, gls,i1,ltr)
{
var g1=gls[i1],g2=gls[i1+1], kern=font["kern"];
if(kern) {
var ind1 = kern.glyph1.indexOf(g1);
if(ind1!=-1)
{
var ind2 = kern.rval[ind1].glyph2.indexOf(g2);
if(ind2!=-1) return [0,0,kern.rval[ind1].vals[ind2],0];
}
}
//console.log("no kern");
return [0,0,0,0];
}
var gls = [];
for(var i=0; i<str.length; i++) {
var cc = str.codePointAt(i); if(cc>0xffff) i++;
gls.push(Typr["U"]["codeToGlyph"](font, cc));
}
var shape = [];
var x = 0, y = 0;
for(var i=0; i<gls.length; i++) {
var padj = getGlyphPosition(font, gls,i,ltr);
var gid = gls[i];
var ax=font["hmtx"].aWidth[gid]+padj[2];
shape.push({"g":gid, "cl":i, "dx":0, "dy":0, "ax":ax, "ay":0});
x+=ax;
}
return shape;
},
"shapeToPath" : function(font,shape,clr) {
var tpath = {cmds:[], crds:[]};
var x = 0, y = 0;
for(var i=0; i<shape.length; i++) {
var it = shape[i]
var path = Typr["U"]["glyphToPath"](font, it["g"]), crds=path["crds"];
for(var j=0; j<crds.length; j+=2) {
tpath.crds.push(crds[j ] + x + it["dx"]);
tpath.crds.push(crds[j+1] + y + it["dy"]);
}
if(clr) tpath.cmds.push(clr);
for(var j=0; j<path["cmds"].length; j++) tpath.cmds.push(path["cmds"][j]);
var clen = tpath.cmds.length;
if(clr) if(clen!=0 && tpath.cmds[clen-1]!="X") tpath.cmds.push("X"); // SVG fonts might contain "X". Then, nothing would stroke non-SVG glyphs.
x += it["ax"]; y+= it["ay"];
}
return {"cmds":tpath.cmds, "crds":tpath.crds};
},
"codeToGlyph" : function(font, code)
{
var cmap = font["cmap"];
//console.log(cmap);
// "p3e10" for NotoEmoji-Regular.ttf
var tind = -1, pps=["p3e10","p0e4","p3e1","p1e0","p0e3","p0e1"/*,"p3e3"*/];
for(var i=0; i<pps.length; i++) if(cmap.ids[pps[i]]!=null) { tind=cmap.ids[pps[i]]; break; }
if(tind==-1) throw "no familiar platform and encoding!";
// find the greatest index with a value <=v
var arrSearch = function(arr, k, v) {
var l=0, r=Math.floor(arr.length/k);
while(l+1!=r) { var mid = l + ((r-l)>>>1); if(arr[mid*k]<=v) l=mid; else r=mid; }
return l*k;
}
var tab = cmap.tables[tind], fmt=tab.format, gid = -1; //console.log(fmt); throw "e";
if(fmt==0) {
if(code>=tab.map.length) gid = 0;
else gid = tab.map[code];
}
/*else if(fmt==2) {
var data=font["_data"], off = cmap.off+tab.off+6, bin=Typr["B"];
var shKey = bin.readUshort(data,off + 2*(code>>>8));
var shInd = off + 256*2 + shKey*8;
var firstCode = bin.readUshort(data,shInd);
var entryCount= bin.readUshort(data,shInd+2);
var idDelta = bin.readShort (data,shInd+4);
var idRangeOffset = bin.readUshort(data,shInd+6);
if(firstCode<=code && code<=firstCode+entryCount) {
// not completely correct
gid = bin.readUshort(data, shInd+6+idRangeOffset + (code&255)*2);
}
else gid=0;
//if(code>256) console.log(code,(code>>>8),shKey,firstCode,entryCount,idDelta,idRangeOffset);
//throw "e";
//console.log(tab, bin.readUshort(data,off));
//throw "e";
}*/
else if(fmt==4) {
var sind = -1, ec = tab.endCount;
if(code>ec[ec.length-1]) sind=-1;
else {
// smallest index with code <= value
sind = arrSearch(ec,1,code);
if(ec[sind]<code) sind++;
}
if(sind==-1) gid = 0;
else if(code<tab.startCount[sind]) gid = 0;
else {
var gli = 0;
if(tab.idRangeOffset[sind]!=0) gli = tab.glyphIdArray[(code-tab.startCount[sind]) + (tab.idRangeOffset[sind]>>1) - (tab.idRangeOffset.length-sind)];
else gli = code + tab.idDelta[sind];
gid = (gli & 0xFFFF);
}
}
else if(fmt==6) {
var off = code-tab.firstCode, arr=tab.glyphIdArray;
if(off<0 || off>=arr.length) gid=0;
else gid = arr[off];
}
else if(fmt==12) {
var grp = tab.groups; //console.log(grp); throw "e";
if(code>grp[grp.length-2]) gid = 0;
else {
var i = arrSearch(grp,3,code);
if(grp[i]<=code && code<=grp[i+1]) { gid = grp[i+2] + (code-grp[i]); }
if(gid==-1) gid=0;
}
}
else throw "unknown cmap table format "+tab.format;
//*
var SVG = font["SVG "], loca = font["loca"];
// if the font claims to have a Glyph for a character, but the glyph is empty, and the character is not "white", it is a lie!
if(gid!=0 && font["CFF "]==null && (SVG==null || SVG.entries[gid]==null) && loca[gid]==loca[gid+1] // loca not present in CFF or SVG fonts
&& [0x9,0xa,0xb,0xc,0xd,0x20,0x85,0xa0,0x1680,0x2028,0x2029,0x202f,0x3000,
0x180e,0x200b,0x200c,0x200d,0x2060,0xfeff].indexOf(code)==-1 && !(0x2000<=code && code<=0x200a)) gid=0;
//*/
return gid;
},
"glyphToPath" : function(font, gid)
{
var path = { cmds:[], crds:[] };
var SVG = font["SVG "], CFF = font["CFF "];
var U = Typr["U"];
if(SVG && SVG.entries[gid]) {
var p = SVG.entries[gid];
if(p!=null) {
if(typeof p == "string") { p = U["SVG"].toPath(p); SVG.entries[gid]=p; }
path=p;
}
}
else if(CFF) {
var pdct = CFF["Private"];
var state = {x:0,y:0,stack:[],nStems:0,haveWidth:false,width: pdct ? pdct["defaultWidthX"] : 0,open:false};
if(CFF["ROS"]) {
var gi = 0;
while(CFF["FDSelect"][gi+2]<=gid) gi+=2;
pdct = CFF["FDArray"][CFF["FDSelect"][gi+1]]["Private"];
}
U["_drawCFF"](CFF["CharStrings"][gid], state, CFF, pdct, path);
}
else if(font["glyf"]) { U["_drawGlyf"](gid, font, path); }
return {"cmds":path.cmds, "crds":path.crds};
},
"_drawGlyf" : function(gid, font, path)
{
var gl = font["glyf"][gid];
if(gl==null) gl = font["glyf"][gid] = Typr["T"].glyf._parseGlyf(font, gid);
if(gl!=null){
if(gl.noc>-1) Typr["U"]["_simpleGlyph"](gl, path);
else Typr["U"]["_compoGlyph"] (gl, font, path);
}
},
"_simpleGlyph" : function(gl, p)
{
var P = Typr["U"]["P"];
for(var c=0; c<gl.noc; c++) {
var i0 = (c==0) ? 0 : (gl.endPts[c-1] + 1);
var il = gl.endPts[c];
for(var i=i0; i<=il; i++) {
var pr = (i==i0)?il:(i-1);
var nx = (i==il)?i0:(i+1);
var onCurve = gl.flags[i]&1;
var prOnCurve = gl.flags[pr]&1;
var nxOnCurve = gl.flags[nx]&1;
var x = gl.xs[i], y = gl.ys[i];
if(i==i0) {
if(onCurve) {
if(prOnCurve) P.MoveTo(p, gl.xs[pr], gl.ys[pr]);
else { P.MoveTo(p,x,y); continue; /* will do CurveTo at il */ }
}
else {
if(prOnCurve) P.MoveTo(p, gl.xs[pr], gl.ys[pr] );
else P.MoveTo(p, Math.floor((gl.xs[pr]+x)*0.5), Math.floor((gl.ys[pr]+y)*0.5) );
}
}
if(onCurve) {
if(prOnCurve) P.LineTo(p,x,y);
}
else {
if(nxOnCurve) P.qCurveTo(p, x, y, gl.xs[nx], gl.ys[nx]);
else P.qCurveTo(p, x, y, Math.floor((x+gl.xs[nx])*0.5), Math.floor((y+gl.ys[nx])*0.5) );
}
}
P.ClosePath(p);
}
},
"_compoGlyph" : function(gl, font, p) {
for(var j=0; j<gl.parts.length; j++) {
var path = { cmds:[], crds:[] };
var prt = gl.parts[j];
Typr["U"]["_drawGlyf"](prt.glyphIndex, font, path);
var m = prt.m;
for(var i=0; i<path.crds.length; i+=2) {
var x = path.crds[i ], y = path.crds[i+1];
p.crds.push(x*m.a + y*m.b + m.tx);
p.crds.push(x*m.c + y*m.d + m.ty);
}
for(var i=0; i<path.cmds.length; i++) p.cmds.push(path.cmds[i]);
}
},
"pathToSVG" : function(path, prec)
{
var cmds = path["cmds"], crds = path["crds"];
if(prec==null) prec = 5;
var out = [], co = 0, lmap = {"M":2,"L":2,"Q":4,"C":6};
for(var i=0; i<cmds.length; i++)
{
var cmd = cmds[i], cn = co+(lmap[cmd]?lmap[cmd]:0);
out.push(cmd);
while(co<cn) { var c = crds[co++]; out.push(parseFloat(c.toFixed(prec))+(co==cn?"":" ")); }
}
return out.join("");
},
"SVGToPath" : function(d) {
var pth = {cmds:[], crds:[]};
Typr["U"]["SVG"].svgToPath(d, pth);
return {"cmds":pth.cmds, "crds":pth.crds};
},
"pathToContext" : function(path, ctx) {
var c = 0, cmds = path["cmds"], crds = path["crds"];
for(var j=0; j<cmds.length; j++) {
var cmd = cmds[j];
if (cmd=="M") {
ctx.moveTo(crds[c], crds[c+1]);
c+=2;
}
else if(cmd=="L") {
ctx.lineTo(crds[c], crds[c+1]);
c+=2;
}
else if(cmd=="C") {
ctx.bezierCurveTo(crds[c], crds[c+1], crds[c+2], crds[c+3], crds[c+4], crds[c+5]);
c+=6;
}
else if(cmd=="Q") {
ctx.quadraticCurveTo(crds[c], crds[c+1], crds[c+2], crds[c+3]);
c+=4;
}
else if(cmd.charAt(0)=="#") {
ctx.beginPath();
ctx.fillStyle = cmd;
}
else if(cmd=="Z") {
ctx.closePath();
}
else if(cmd=="X") {
ctx.fill();
}
}
},
"P" : {
MoveTo : function(p, x, y) { p.cmds.push("M"); p.crds.push(x,y); },
LineTo : function(p, x, y) { p.cmds.push("L"); p.crds.push(x,y); },
CurveTo : function(p, a,b,c,d,e,f) { p.cmds.push("C"); p.crds.push(a,b,c,d,e,f); },
qCurveTo : function(p, a,b,c,d) { p.cmds.push("Q"); p.crds.push(a,b,c,d); },
ClosePath : function(p) { p.cmds.push("Z"); }
},
"_drawCFF" : function(cmds, state, font, pdct, p)
{
var stack = state.stack;
var nStems = state.nStems, haveWidth=state.haveWidth, width=state.width, open=state.open;
var i=0;
var x=state.x, y=state.y, c1x=0, c1y=0, c2x=0, c2y=0, c3x=0, c3y=0, c4x=0, c4y=0, jpx=0, jpy=0;
var CFF = Typr["T"].CFF, P = Typr["U"]["P"];
var nominalWidthX = pdct["nominalWidthX"];
var o = {val:0,size:0};
//console.log(cmds);
while(i<cmds.length)
{
CFF.getCharString(cmds, i, o);
var v = o.val;
i += o.size;
if(false) {}
else if(v=="o1" || v=="o18") // hstem || hstemhm
{
var hasWidthArg;
// The number of stem operators on the stack is always even.
// If the value is uneven, that means a width is specified.
hasWidthArg = stack.length % 2 !== 0;
if (hasWidthArg && !haveWidth) {
width = stack.shift() + nominalWidthX;
}
nStems += stack.length >> 1;
stack.length = 0;
haveWidth = true;
}
else if(v=="o3" || v=="o23") // vstem || vstemhm
{
var hasWidthArg;
// The number of stem operators on the stack is always even.
// If the value is uneven, that means a width is specified.
hasWidthArg = stack.length % 2 !== 0;
if (hasWidthArg && !haveWidth) {
width = stack.shift() + nominalWidthX;
}
nStems += stack.length >> 1;
stack.length = 0;
haveWidth = true;
}
else if(v=="o4")
{
if (stack.length > 1 && !haveWidth) {
width = stack.shift() + nominalWidthX;
haveWidth = true;
}
if(open) P.ClosePath(p);
y += stack.pop();
P.MoveTo(p,x,y); open=true;
}
else if(v=="o5")
{
while (stack.length > 0) {
x += stack.shift();
y += stack.shift();
P.LineTo(p, x, y);
}
}
else if(v=="o6" || v=="o7") // hlineto || vlineto
{
var count = stack.length;
var isX = (v == "o6");
for(var j=0; j<count; j++) {
var sval = stack.shift();
if(isX) x += sval; else y += sval;
isX = !isX;
P.LineTo(p, x, y);
}
}
else if(v=="o8" || v=="o24") // rrcurveto || rcurveline
{
var count = stack.length;
var index = 0;
while(index+6 <= count) {
c1x = x + stack.shift();
c1y = y + stack.shift();
c2x = c1x + stack.shift();
c2y = c1y + stack.shift();
x = c2x + stack.shift();
y = c2y + stack.shift();
P.CurveTo(p, c1x, c1y, c2x, c2y, x, y);
index+=6;
}
if(v=="o24")
{
x += stack.shift();
y += stack.shift();
P.LineTo(p, x, y);
}
}
else if(v=="o11") break;
else if(v=="o1234" || v=="o1235" || v=="o1236" || v=="o1237")//if((v+"").slice(0,3)=="o12")
{
if(v=="o1234")
{
c1x = x + stack.shift(); // dx1
c1y = y; // dy1
c2x = c1x + stack.shift(); // dx2
c2y = c1y + stack.shift(); // dy2
jpx = c2x + stack.shift(); // dx3
jpy = c2y; // dy3
c3x = jpx + stack.shift(); // dx4
c3y = c2y; // dy4
c4x = c3x + stack.shift(); // dx5
c4y = y; // dy5
x = c4x + stack.shift(); // dx6
P.CurveTo(p, c1x, c1y, c2x, c2y, jpx, jpy);
P.CurveTo(p, c3x, c3y, c4x, c4y, x, y);
}
if(v=="o1235")
{
c1x = x + stack.shift(); // dx1
c1y = y + stack.shift(); // dy1
c2x = c1x + stack.shift(); // dx2
c2y = c1y + stack.shift(); // dy2
jpx = c2x + stack.shift(); // dx3
jpy = c2y + stack.shift(); // dy3
c3x = jpx + stack.shift(); // dx4
c3y = jpy + stack.shift(); // dy4
c4x = c3x + stack.shift(); // dx5
c4y = c3y + stack.shift(); // dy5
x = c4x + stack.shift(); // dx6
y = c4y + stack.shift(); // dy6
stack.shift(); // flex depth
P.CurveTo(p, c1x, c1y, c2x, c2y, jpx, jpy);
P.CurveTo(p, c3x, c3y, c4x, c4y, x, y);
}
if(v=="o1236")
{
c1x = x + stack.shift(); // dx1
c1y = y + stack.shift(); // dy1
c2x = c1x + stack.shift(); // dx2
c2y = c1y + stack.shift(); // dy2
jpx = c2x + stack.shift(); // dx3
jpy = c2y; // dy3
c3x = jpx + stack.shift(); // dx4
c3y = c2y; // dy4
c4x = c3x + stack.shift(); // dx5
c4y = c3y + stack.shift(); // dy5
x = c4x + stack.shift(); // dx6
P.CurveTo(p, c1x, c1y, c2x, c2y, jpx, jpy);
P.CurveTo(p, c3x, c3y, c4x, c4y, x, y);
}
if(v=="o1237")
{
c1x = x + stack.shift(); // dx1
c1y = y + stack.shift(); // dy1
c2x = c1x + stack.shift(); // dx2
c2y = c1y + stack.shift(); // dy2
jpx = c2x + stack.shift(); // dx3
jpy = c2y + stack.shift(); // dy3
c3x = jpx + stack.shift(); // dx4
c3y = jpy + stack.shift(); // dy4
c4x = c3x + stack.shift(); // dx5
c4y = c3y + stack.shift(); // dy5
if (Math.abs(c4x - x) > Math.abs(c4y - y)) {
x = c4x + stack.shift();
} else {
y = c4y + stack.shift();
}
P.CurveTo(p, c1x, c1y, c2x, c2y, jpx, jpy);
P.CurveTo(p, c3x, c3y, c4x, c4y, x, y);
}
}
else if(v=="o14")
{
if (stack.length > 0 && !haveWidth) {
width = stack.shift() + font["nominalWidthX"];
haveWidth = true;
}
if(stack.length==4) // seac = standard encoding accented character
{
var asb = 0;
var adx = stack.shift();
var ady = stack.shift();
var bchar = stack.shift();
var achar = stack.shift();
var bind = CFF.glyphBySE(font, bchar);
var aind = CFF.glyphBySE(font, achar);
//console.log(bchar, bind);
//console.log(achar, aind);
//state.x=x; state.y=y; state.nStems=nStems; state.haveWidth=haveWidth; state.width=width; state.open=open;
Typr["U"]["_drawCFF"](font["CharStrings"][bind], state,font,pdct,p);
state.x = adx; state.y = ady;
Typr["U"]["_drawCFF"](font["CharStrings"][aind], state,font,pdct,p);
//x=state.x; y=state.y; nStems=state.nStems; haveWidth=state.haveWidth; width=state.width; open=state.open;
}
if(open) { P.ClosePath(p); open=false; }
}
else if(v=="o19" || v=="o20")
{
var hasWidthArg;
// The number of stem operators on the stack is always even.
// If the value is uneven, that means a width is specified.
hasWidthArg = stack.length % 2 !== 0;
if (hasWidthArg && !haveWidth) {
width = stack.shift() + nominalWidthX;
}
nStems += stack.length >> 1;
stack.length = 0;
haveWidth = true;
i += (nStems + 7) >> 3;
}
else if(v=="o21") {
if (stack.length > 2 && !haveWidth) {
width = stack.shift() + nominalWidthX;
haveWidth = true;
}
y += stack.pop();
x += stack.pop();
if(open) P.ClosePath(p);
P.MoveTo(p,x,y); open=true;
}
else if(v=="o22")
{
if (stack.length > 1 && !haveWidth) {
width = stack.shift() + nominalWidthX;
haveWidth = true;
}
x += stack.pop();
if(open) P.ClosePath(p);
P.MoveTo(p,x,y); open=true;
}
else if(v=="o25")
{
while (stack.length > 6) {
x += stack.shift();
y += stack.shift();
P.LineTo(p, x, y);
}
c1x = x + stack.shift();
c1y = y + stack.shift();
c2x = c1x + stack.shift();
c2y = c1y + stack.shift();
x = c2x + stack.shift();
y = c2y + stack.shift();
P.CurveTo(p, c1x, c1y, c2x, c2y, x, y);
}
else if(v=="o26")
{
if (stack.length % 2) {
x += stack.shift();
}
while (stack.length > 0) {
c1x = x;
c1y = y + stack.shift();
c2x = c1x + stack.shift();
c2y = c1y + stack.shift();
x = c2x;
y = c2y + stack.shift();
P.CurveTo(p, c1x, c1y, c2x, c2y, x, y);
}
}
else if(v=="o27")
{
if (stack.length % 2) {
y += stack.shift();
}
while (stack.length > 0) {
c1x = x + stack.shift();
c1y = y;
c2x = c1x + stack.shift();
c2y = c1y + stack.shift();
x = c2x + stack.shift();
y = c2y;
P.CurveTo(p, c1x, c1y, c2x, c2y, x, y);
}
}
else if(v=="o10" || v=="o29") // callsubr || callgsubr
{
var obj = (v=="o10" ? pdct : font);
if(stack.length==0) { console.log("error: empty stack"); }
else {
var ind = stack.pop();
var subr = obj["Subrs"][ ind + obj["Bias"] ];
state.x=x; state.y=y; state.nStems=nStems; state.haveWidth=haveWidth; state.width=width; state.open=open;
Typr["U"]["_drawCFF"](subr, state,font,pdct,p);
x=state.x; y=state.y; nStems=state.nStems; haveWidth=state.haveWidth; width=state.width; open=state.open;
}
}
else if(v=="o30" || v=="o31") // vhcurveto || hvcurveto
{
var count, count1 = stack.length;
var index = 0;
var alternate = v == "o31";
count = count1 & ~2;
index += count1 - count;
while ( index < count )
{
if(alternate)
{
c1x = x + stack.shift();
c1y = y;
c2x = c1x + stack.shift();
c2y = c1y + stack.shift();
y = c2y + stack.shift();
if(count-index == 5) { x = c2x + stack.shift(); index++; }
else x = c2x;
alternate = false;
}
else
{
c1x = x;
c1y = y + stack.shift();
c2x = c1x + stack.shift();
c2y = c1y + stack.shift();
x = c2x + stack.shift();
if(count-index == 5) { y = c2y + stack.shift(); index++; }
else y = c2y;
alternate = true;
}
P.CurveTo(p, c1x, c1y, c2x, c2y, x, y);
index += 4;
}
}
else if((v+"").charAt(0)=="o") { console.log("Unknown operation: "+v, cmds); throw v; }
else stack.push(v);
}
//console.log(cmds);
state.x=x; state.y=y; state.nStems=nStems; state.haveWidth=haveWidth; state.width=width; state.open=open;
},
"SVG" : function() {
var M = {
getScale : function(m) { return Math.sqrt(Math.abs(m[0]*m[3]-m[1]*m[2])); },
translate: function(m,x,y) { M.concat(m, [1,0,0,1,x,y]); },
rotate : function(m,a ) { M.concat(m, [Math.cos(a), -Math.sin(a), Math.sin(a), Math.cos(a),0,0]); },
scale : function(m,x,y) { M.concat(m, [x,0,0,y,0,0]); },
concat : function(m,w ) {
var a=m[0],b=m[1],c=m[2],d=m[3],tx=m[4],ty=m[5];
m[0] = (a *w[0])+(b *w[2]); m[1] = (a *w[1])+(b *w[3]);
m[2] = (c *w[0])+(d *w[2]); m[3] = (c *w[1])+(d *w[3]);
m[4] = (tx*w[0])+(ty*w[2])+w[4]; m[5] = (tx*w[1])+(ty*w[3])+w[5];
},
invert : function(m ) {
var a=m[0],b=m[1],c=m[2],d=m[3],tx=m[4],ty=m[5], adbc=a*d-b*c;
m[0] = d/adbc; m[1] = -b/adbc; m[2] =-c/adbc; m[3] = a/adbc;
m[4] = (c*ty - d*tx)/adbc; m[5] = (b*tx - a*ty)/adbc;
},
multPoint: function(m, p ) { var x=p[0],y=p[1]; return [x*m[0]+y*m[2]+m[4], x*m[1]+y*m[3]+m[5]]; },
multArray: function(m, a ) { for(var i=0; i<a.length; i+=2) { var x=a[i],y=a[i+1]; a[i]=x*m[0]+y*m[2]+m[4]; a[i+1]=x*m[1]+y*m[3]+m[5]; } }
}
function _bracketSplit(str, lbr, rbr) {
var out = [], pos=0, ci = 0, lvl = 0;
while(true) { //throw "e";
var li = str.indexOf(lbr, ci);
var ri = str.indexOf(rbr, ci);
if(li==-1 && ri==-1) break;
if(ri==-1 || (li!=-1 && li<ri)) {
if(lvl==0) { out.push(str.slice(pos,li).trim()); pos=li+1; }
lvl++; ci=li+1;
}
else if(li==-1 || (ri!=-1 && ri<li)) {
lvl--;
if(lvl==0) { out.push(str.slice(pos,ri).trim()); pos=ri+1; }
ci=ri+1;
}
}
return out;
}
//"cssMap":
function cssMap(str) {
var pts = _bracketSplit(str, "{", "}");
var css = {};
for(var i=0; i<pts.length; i+=2) {
var cn = pts[i].split(",");
for(var j=0; j<cn.length; j++) {
var cnj = cn[j].trim(); if(css[cnj]==null) css[cnj]="";
css[cnj] += pts[i+1];
}
}
return css;
}
//"readTrnf"
function readTrnf(trna) {
var pts = _bracketSplit(trna, "(",")");
var m = [1,0,0,1,0,0];
for(var i=0; i<pts.length; i+=2) { var om=m; m=_readTrnsAttr(pts[i], pts[i+1]); M.concat(m,om); }
return m;
}
function _readTrnsAttr(fnc, vls) {
//console.log(vls);
//vls = vls.replace(/\-/g, " -").trim();
var m = [1,0,0,1,0,0], gotSep = true;
for(var i=0; i<vls.length; i++) { // matrix(.99915 0 0 .99915.418.552) matrix(1 0 0-.9474-22.535 271.03)
var ch = vls.charAt(i);
if(ch=="," || ch==" ") gotSep = true;
else if(ch==".") {
if(!gotSep) { vls = vls.slice(0,i) + ","+vls.slice(i); i++; } gotSep = false;
}
else if(ch=="-" && i>0 && vls[i-1]!="e") { vls = vls.slice(0,i) + " "+vls.slice(i); i++; gotSep=true; }
}
vls = vls.split(/\s*[\s,]\s*/).map(parseFloat);
if(false) {}
else if(fnc=="translate") { if(vls.length==1) M.translate(m,vls[0], 0); else M.translate(m,vls[0],vls[1]); }
else if(fnc=="scale" ) { if(vls.length==1) M.scale (m,vls[0],vls[0]); else M.scale (m,vls[0],vls[1]); }
else if(fnc=="rotate" ) { var tx=0,ty=0; if(vls.length!=1) { tx=vls[1]; ty=vls[2]; } M.translate(m,-tx,-ty); M.rotate(m,-Math.PI*vls[0]/180); M.translate(m,tx,ty); }
else if(fnc=="matrix" ) m = vls;
else console.log("unknown transform: ", fnc);
return m;
}
function toPath(str)
{
var pth = {cmds:[], crds:[]};
if(str==null) return pth;
var prsr = new DOMParser();
var doc = prsr["parseFromString"](str,"image/svg+xml");
//var svg = doc.firstChild; while(svg.tagName!="svg") svg = svg.nextSibling;
var svg = doc.getElementsByTagName("svg")[0];
var vb = svg.getAttribute("viewBox");
if(vb) vb = vb.trim().split(" ").map(parseFloat); else vb = [0,0,1000,1000];
_toPath(svg.children, pth);
for(var i=0; i<pth.crds.length; i+=2) {
var x = pth.crds[i], y = pth.crds[i+1];
x -= vb[0];
y -= vb[1];
y = -y;
pth.crds[i] = x;
pth.crds[i+1] = y;
}
return pth;
}
function _toPath(nds, pth, fill) {
for(var ni=0; ni<nds.length; ni++) {
var nd = nds[ni], tn = nd.tagName;
var cfl = nd.getAttribute("fill"); if(cfl==null) cfl = fill;
if(tn=="g") {
var tp = {crds:[], cmds:[]};
_toPath(nd.children, tp, cfl);
var trf = nd.getAttribute("transform");
if(trf) {
var m = readTrnf(trf);
M.multArray(m, tp.crds);
}
pth.crds=pth.crds.concat(tp.crds);
pth.cmds=pth.cmds.concat(tp.cmds);
}
else if(tn=="path" || tn=="circle" || tn=="ellipse") {
pth.cmds.push(cfl?cfl:"#000000");
var d;
if(tn=="path") d = nd.getAttribute("d"); //console.log(d);
if(tn=="circle" || tn=="ellipse") {
var vls=[0,0,0,0], nms=["cx","cy","rx","ry","r"];
for(var i=0; i<5; i++) { var V=nd.getAttribute(nms[i]); if(V) { V=parseFloat(V); if(i<4) vls[i]=V; else vls[2]=vls[3]=V; } }
var cx=vls[0],cy=vls[1],rx=vls[2],ry=vls[3];
d = ["M",cx-rx,cy,"a",rx,ry,0,1,0,rx*2,0,"a",rx,ry,0,1,0,-rx*2,0].join(" ");
}
svgToPath(d, pth); pth.cmds.push("X");
}
else if(tn=="defs") {}
else console.log(tn, nd);
}
}
function _tokens(d) {
var ts = [], off = 0, rn=false, cn="", pc=""; // reading number, current number, prev char
while(off<d.length){
var cc=d.charCodeAt(off), ch = d.charAt(off); off++;
var isNum = (48<=cc && cc<=57) || ch=="." || ch=="-" || ch=="e" || ch=="E";
if(rn) {
if( (ch=="-" && pc!="e") || (ch=="." && cn.indexOf(".")!=-1)) { ts.push(parseFloat(cn)); cn=ch; }
else if(isNum) cn+=ch;
else { ts.push(parseFloat(cn)); if(ch!="," && ch!=" ") ts.push(ch); rn=false; }
}
else {
if(isNum) { cn=ch; rn=true; }
else if(ch!="," && ch!=" ") ts.push(ch);
}
pc = ch;
}
if(rn) ts.push(parseFloat(cn));
return ts;
}
function _reps(ts, off, ps) {
var i = off;
while(i<ts.length) { if((typeof ts[i]) == "string") break; i+=ps; }
return (i-off)/ps;
}
function svgToPath(d, pth) {
var ts = _tokens(d);
var i = 0, x = 0, y = 0, ox = 0, oy = 0, oldo=pth.crds.length;
var pc = {"M":2,"L":2,"H":1,"V":1, "T":2,"S":4, "A":7, "Q":4, "C":6};
var cmds = pth.cmds, crds = pth.crds;
while(i<ts.length) {
var cmd = ts[i]; i++;
var cmu = cmd.toUpperCase();
if(cmu=="Z") { cmds.push("Z"); x=ox; y=oy; }
else {
var ps = pc[cmu], reps = _reps(ts, i, ps);
for(var j=0; j<reps; j++) {
// If a moveto is followed by multiple pairs of coordinates, the subsequent pairs are treated as implicit lineto commands.
if(j==1 && cmu=="M") { cmd=(cmd==cmu)?"L":"l"; cmu="L"; }
var xi = 0, yi = 0; if(cmd!=cmu) { xi=x; yi=y; }
if(false) {}
else if(cmu=="M") { x = xi+ts[i++]; y = yi+ts[i++]; cmds.push("M"); crds.push(x,y); ox=x; oy=y; }
else if(cmu=="L") { x = xi+ts[i++]; y = yi+ts[i++]; cmds.push("L"); crds.push(x,y); }
else if(cmu=="H") { x = xi+ts[i++]; cmds.push("L"); crds.push(x,y); }
else if(cmu=="V") { y = yi+ts[i++]; cmds.push("L"); crds.push(x,y); }
else if(cmu=="Q") {
var x1=xi+ts[i++], y1=yi+ts[i++], x2=xi+ts[i++], y2=yi+ts[i++];
cmds.push("Q"); crds.push(x1,y1,x2,y2); x=x2; y=y2;
}
else if(cmu=="T") {
var co = Math.max(crds.length-2, oldo);
var x1 = x+x-crds[co], y1 = y+y-crds[co+1];
var x2=xi+ts[i++], y2=yi+ts[i++];
cmds.push("Q"); crds.push(x1,y1,x2,y2); x=x2; y=y2;
}
else if(cmu=="C") {
var x1=xi+ts[i++], y1=yi+ts[i++], x2=xi+ts[i++], y2=yi+ts[i++], x3=xi+ts[i++], y3=yi+ts[i++];
cmds.push("C"); crds.push(x1,y1,x2,y2,x3,y3); x=x3; y=y3;
}
else if(cmu=="S") {
var co = Math.max(crds.length-(cmds[cmds.length-1]=="C"?4:2), oldo);
var x1 = x+x-crds[co], y1 = y+y-crds[co+1];
var x2=xi+ts[i++], y2=yi+ts[i++], x3=xi+ts[i++], y3=yi+ts[i++];
cmds.push("C"); crds.push(x1,y1,x2,y2,x3,y3); x=x3; y=y3;
}
else if(cmu=="A") { // convert SVG Arc to four cubic bézier segments "C"
var x1 = x, y1 = y;
var rx = ts[i++], ry = ts[i++];
var phi = ts[i++]*(Math.PI/180), fA = ts[i++], fS = ts[i++];
var x2 = xi+ts[i++], y2 = yi+ts[i++];
if(x2==x && y2==y && rx==0 && ry==0) continue;
var hdx = (x1-x2)/2, hdy = (y1-y2)/2;
var cosP = Math.cos(phi), sinP = Math.sin(phi);
var x1A = cosP * hdx + sinP * hdy;
var y1A = -sinP * hdx + cosP * hdy;
var rxS = rx*rx, ryS = ry*ry;
var x1AS = x1A*x1A, y1AS = y1A*y1A;
var frc = (rxS*ryS - rxS*y1AS - ryS*x1AS) / (rxS*y1AS + ryS*x1AS);
var coef = (fA!=fS ? 1 : -1) * Math.sqrt( Math.max(frc,0) );
var cxA = coef * (rx * y1A) / ry;
var cyA = -coef * (ry * x1A) / rx;
var cx = cosP*cxA - sinP*cyA + (x1+x2)/2;
var cy = sinP*cxA + cosP*cyA + (y1+y2)/2;
var angl = function(ux,uy,vx,vy) { var lU = Math.sqrt(ux*ux+uy*uy), lV = Math.sqrt(vx*vx+vy*vy);
var num = (ux*vx+uy*vy) / (lU*lV); //console.log(num, Math.acos(num));
return (ux*vy-uy*vx>=0?1:-1) * Math.acos( Math.max(-1, Math.min(1, num)) ); }
var vX = (x1A-cxA)/rx, vY = (y1A-cyA)/ry;
var theta1 = angl( 1, 0, vX,vY);
var dtheta = angl(vX,vY, (-x1A-cxA)/rx, (-y1A-cyA)/ry);
dtheta = dtheta % (2*Math.PI);
var arc = function(gst,x,y,r,a0,a1, neg) {
var rotate = function(m, a) { var si=Math.sin(a), co=Math.cos(a);
var a=m[0],b=m[1],c=m[2],d=m[3];
m[0] = (a *co)+(b *si); m[1] = (-a *si)+(b *co);
m[2] = (c *co)+(d *si); m[3] = (-c *si)+(d *co);
}
var multArr= function(m,a) {
for(var j=0; j<a.length; j+=2) {
var x=a[j], y=a[j+1];
a[j ] = m[0]*x + m[2]*y + m[4];
a[j+1] = m[1]*x + m[3]*y + m[5];
}
}
var concatA= function(a,b) { for(var j=0; j<b.length; j++) a.push(b[j]); }
var concatP= function(p,r) { concatA(p.cmds,r.cmds); concatA(p.crds,r.crds); }
// circle from a0 counter-clock-wise to a1
if(neg) while(a1>a0) a1-=2*Math.PI;
else while(a1<a0) a1+=2*Math.PI;
var th = (a1-a0)/4;
var x0 = Math.cos(th/2), y0 = -Math.sin(th/2);
var x1 = (4-x0)/3, y1 = y0==0 ? y0 : (1-x0)*(3-x0)/(3*y0);
var x2 = x1, y2 = -y1;
var x3 = x0, y3 = -y0;
var ps = [x1,y1,x2,y2,x3,y3];
var pth = {cmds:["C","C","C","C"], crds:ps.slice(0)};
var rot = [1,0,0,1,0,0]; rotate(rot,-th);
for(var j=0; j<3; j++) { multArr(rot,ps); concatA(pth.crds,ps); }
rotate(rot, -a0+th/2); rot[0]*=r; rot[1]*=r; rot[2]*=r; rot[3]*=r; rot[4]=x; rot[5]=y;
multArr(rot, pth.crds);
multArr(gst.ctm, pth.crds);
concatP(gst.pth, pth);
}
var gst = {pth:pth, ctm:[rx*cosP,rx*sinP,-ry*sinP,ry*cosP,cx,cy]};
arc(gst, 0,0, 1, theta1, theta1+dtheta, fS==0);
x=x2; y=y2;
}
else console.log("Unknown SVG command "+cmd);
}
}
}
};
return { "cssMap":cssMap, "readTrnf":readTrnf, svgToPath:svgToPath, toPath:toPath };
}(),
"initHB": function(hurl,resp) {
var codeLength = function(code) {
var len=0;
if ((code&(0xffffffff-(1<< 7)+1))==0) { len=1; }
else if((code&(0xffffffff-(1<<11)+1))==0) { len=2; }
else if((code&(0xffffffff-(1<<16)+1))==0) { len=3; }
else if((code&(0xffffffff-(1<<21)+1))==0) { len=4; }
return len;
}
var te = new window["TextEncoder"]("utf8");
fetch(hurl)
.then(function (x ) { return x["arrayBuffer"](); })
.then(function (ab ) { return WebAssembly["instantiate"](ab); })
.then(function (res) {
console.log("HB ready");
var exp = res["instance"]["exports"], mem=exp["memory"];
mem["grow"](700); // each page is 64kb in size
var heapu8 = new Uint8Array (mem.buffer);
var u32 = new Uint32Array(mem.buffer);
var i32 = new Int32Array (mem.buffer);
var __lastFnt, blob,blobPtr,face,font;
Typr["U"]["shapeHB"] = (function () {
var toJson = function (ptr) {
var length = exp["hb_buffer_get_length"](ptr);
var result = [];
var iPtr32 = exp["hb_buffer_get_glyph_infos"](ptr, 0) >>>2;
var pPtr32 = exp["hb_buffer_get_glyph_positions"](ptr, 0) >>>2;
for(var i=0; i<length; ++i) {
var a=iPtr32+i*5, b=pPtr32+i*5;
result.push({
"g" : u32[a + 0],
"cl": u32[a + 2],
"ax": i32[b + 0],
"ay": i32[b + 1],
"dx": i32[b + 2],
"dy": i32[b + 3]
});
}
return result;
}
return function (fnt, str, ltr) {
var fdata = fnt["_data"], fn = fnt["name"]["postScriptName"];
if(__lastFnt!=fn) {
if(blob!=null) {
exp["hb_blob_destroy"](blob);
exp["free"](blobPtr);
exp["hb_face_destroy"](face);
exp["hb_font_destroy"](font);
}
blobPtr = exp["malloc"](fdata.byteLength); heapu8.set(fdata, blobPtr);
blob = exp["hb_blob_create"](blobPtr, fdata.byteLength, 2, 0, 0);
face = exp["hb_face_create"](blob, 0);
font = exp["hb_font_create"](face)
__lastFnt = fn;
}
var buffer = exp["hb_buffer_create"]();
var bytes = te["encode"](str);
var len=bytes.length, strp = exp["malloc"](len); heapu8.set(bytes, strp);
exp["hb_buffer_add_utf8"](buffer, strp, len, 0, len);
exp["free"](strp);
exp["hb_buffer_set_direction"](buffer,ltr?4:5);
exp["hb_buffer_guess_segment_properties"](buffer);
exp["hb_shape"](font, buffer, 0, 0);
var json = toJson(buffer)//buffer["json"]();
exp["hb_buffer_destroy"](buffer);
var arr = json.slice(0); if(!ltr) arr.reverse();
var ci=0, bi=0; // character index, binary index
for(var i=1; i<arr.length; i++) {
var gl = arr[i], cl=gl["cl"];
while(true) {
var cpt = str.codePointAt(ci), cln = codeLength(cpt);
if(bi+cln <=cl) { bi+=cln; ci += cpt<=0xffff ? 1 : 2; }
else break;
}
//while(bi+codeLength(str.charCodeAt(ci)) <=cl) { bi+=codeLength(str.charCodeAt(ci)); ci++; }
gl["cl"]=ci;
}
return json;
}
}());
resp();
});
}
}
