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Make ColorSpace.parse use ColorSpace.toIR and .fromIR to make use of only one codepath

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Julian Viereck 2011-09-07 16:29:03 -07:00
parent 1c30fda577
commit a7d1c84c92
1 changed files with 3 additions and 82 deletions
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85
pdf.js
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@ -5629,88 +5629,8 @@ var ColorSpace = (function() {
};
constructor.parse = function colorspace_parse(cs, xref, res) {
if (IsName(cs)) {
var colorSpaces = res.get('ColorSpace');
if (IsDict(colorSpaces)) {
var refcs = colorSpaces.get(cs.name);
if (refcs)
cs = refcs;
}
}
cs = xref.fetchIfRef(cs);
if (IsName(cs)) {
var mode = cs.name;
this.mode = mode;
switch (mode) {
case 'DeviceGray':
case 'G':
return new DeviceGrayCS();
case 'DeviceRGB':
case 'RGB':
return new DeviceRgbCS();
case 'DeviceCMYK':
case 'CMYK':
return new DeviceCmykCS();
case 'Pattern':
return new PatternCS(null);
default:
error('unrecognized colorspace ' + mode);
}
} else if (IsArray(cs)) {
var mode = cs[0].name;
this.mode = mode;
switch (mode) {
case 'DeviceGray':
case 'G':
return new DeviceGrayCS();
case 'DeviceRGB':
case 'RGB':
return new DeviceRgbCS();
case 'DeviceCMYK':
case 'CMYK':
return new DeviceCmykCS();
case 'CalGray':
return new DeviceGrayCS();
case 'CalRGB':
return new DeviceRgbCS();
case 'ICCBased':
var stream = xref.fetchIfRef(cs[1]);
var dict = stream.dict;
var numComps = dict.get('N');
if (numComps == 1)
return new DeviceGrayCS();
if (numComps == 3)
return new DeviceRgbCS();
if (numComps == 4)
return new DeviceCmykCS();
break;
case 'Pattern':
var baseCS = cs[1];
if (baseCS)
baseCS = ColorSpace.parse(baseCS, xref, res);
return new PatternCS(baseCS);
case 'Indexed':
var base = ColorSpace.parse(cs[1], xref, res);
var hiVal = cs[2] + 1;
var lookup = xref.fetchIfRef(cs[3]);
return new IndexedCS(base, hiVal, lookup);
case 'Separation':
var alt = ColorSpace.parse(cs[2], xref, res);
var tintFn = new PDFFunction(xref, xref.fetchIfRef(cs[3]));
return new SeparationCS(alt, tintFn);
case 'Lab':
case 'DeviceN':
default:
error('unimplemented color space object "' + mode + '"');
}
} else {
error('unrecognized color space object: "' + cs + '"');
}
return null;
var IR = constructor.parseToIR(cs, xref, res);
return constructor.fromIR(IR);
};
constructor.fromIR = function(raw) {
@ -5743,6 +5663,7 @@ var ColorSpace = (function() {
default:
error("Unkown name " + name);
}
return null;
}
constructor.parseToIR = function colorspace_parse(cs, xref, res) {