| 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
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184 | 1×
1×
1×
1×
1×
1×
1×
1×
1×
1×
1×
1×
1×
| define(["require", "exports", "./colorspace", "../../pdf-primitives", "../../utils"], function (require, exports, colorspace_1, pdf_primitives_1, utils_1) {
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var _PdfColorSpaceUtils = (function () {
function _PdfColorSpaceUtils() {
}
_PdfColorSpaceUtils.prototype._parse = function (colorSpace, xref, resources, pdfFunctionFactory, globalColorSpaceCache, localColorSpaceCache, asyncIfNotCached) {
var options = { xref: xref, resources: resources, pdfFunctionFactory: pdfFunctionFactory, globalColorSpaceCache: globalColorSpaceCache, localColorSpaceCache: localColorSpaceCache };
var csRef;
if (colorSpace instanceof pdf_primitives_1._PdfReference) {
csRef = colorSpace;
var cachedCS = globalColorSpaceCache && globalColorSpaceCache.get(csRef) ||
localColorSpaceCache && localColorSpaceCache.get(csRef);
if (cachedCS) {
return cachedCS;
}
colorSpace = xref._fetch(colorSpace);
}
var parsedCS = this._parseColorspace(colorSpace, options);
return asyncIfNotCached ? Promise.resolve(parsedCS) : parsedCS;
};
_PdfColorSpaceUtils.prototype._subParse = function (cs, options) {
var globalColorSpaceCache = options.globalColorSpaceCache;
var csRef;
if (cs instanceof pdf_primitives_1._PdfReference) {
csRef = cs;
var cachedCS = globalColorSpaceCache.get(csRef);
if (cachedCS) {
return cachedCS;
}
}
var parsedCS = this._parseColorspace(cs, options);
if (csRef) {
globalColorSpaceCache.set(null, csRef, parsedCS);
}
return parsedCS;
};
_PdfColorSpaceUtils.prototype._parseColorspace = function (cs, options) {
var xref = options.xref, resources = options.resources, pdfFunctionFactory = options.pdfFunctionFactory;
if (cs instanceof pdf_primitives_1._PdfReference) {
cs = xref._fetch(cs);
}
if (cs instanceof pdf_primitives_1._PdfName) {
switch (cs.name) {
case 'G':
case 'DeviceGray':
return this.gray;
case 'RGB':
case 'DeviceRGB':
return this.rgb;
case 'DeviceRGBA':
return this.rgba;
case 'CMYK':
case 'DeviceCMYK':
return this.cmyk;
case 'Pattern':
return new colorspace_1._PdfPatternCS(null);
default:
if (resources instanceof pdf_primitives_1._PdfDictionary) {
var colorSpaces = resources.get('ColorSpace');
if (colorSpaces instanceof pdf_primitives_1._PdfDictionary) {
var resourcesCS = colorSpaces.get(cs.name);
if (resourcesCS) {
if (resourcesCS instanceof pdf_primitives_1._PdfName) {
return this._parseColorspace(resourcesCS, options);
}
cs = resourcesCS;
break;
}
}
}
return this.gray;
}
}
if (Array.isArray(cs)) {
var mode = void 0;
if (cs[0].name instanceof pdf_primitives_1._PdfReference) {
mode = xref._fetch(cs[0]).name;
}
mode = cs[0].name;
var params = void 0;
var numComps = void 0;
var baseCS = void 0;
var whitePoint = void 0;
var blackPoint = void 0;
var gamma = void 0;
var matrix = void 0;
var hiVal = void 0;
var lookup = void 0;
var name_1;
var range = void 0;
var tintFn = void 0;
switch (mode) {
case 'G':
case 'DeviceGray':
return this.gray;
case 'RGB':
case 'DeviceRGB':
return this.rgb;
case 'CMYK':
case 'DeviceCMYK':
return this.cmyk;
case 'CalGray':
params = xref.fetchIfRef(cs[1]);
whitePoint = params.getArray('WhitePoint');
blackPoint = params.getArray('BlackPoint');
gamma = params.get('Gamma');
return new colorspace_1._PdfCalGrayCS(whitePoint, blackPoint, gamma);
case 'CalRGB':
params = xref.fetchIfRef(cs[1]);
whitePoint = params.getArray('WhitePoint');
blackPoint = params.getArray('BlackPoint');
gamma = params.getArray('Gamma');
matrix = params.getArray('Matrix');
return new colorspace_1._PdfColorRgbConverter(whitePoint, blackPoint, gamma, matrix);
case 'Pattern':
baseCS = cs[1] || null;
if (baseCS) {
baseCS = this._subParse(baseCS, options);
}
return new colorspace_1._PdfPatternCS(baseCS);
case 'I':
case 'Indexed':
baseCS = this._subParse(cs[1], options);
hiVal = utils_1._mathClamp(cs[2] instanceof pdf_primitives_1._PdfReference ? xref._fetch(cs[2]) : cs[2], 0, 255);
if (cs[3] instanceof pdf_primitives_1._PdfReference) {
lookup = xref._fetch(cs[3]);
}
else {
lookup = cs[3];
}
return new colorspace_1._PdfIndexedCS(baseCS, hiVal, lookup);
case 'Separation':
case 'DeviceN':
name_1 = xref.fetchIfRef(cs[1]);
numComps = Array.isArray(name_1) ? name_1.length : 1;
baseCS = this._subParse(cs[2], options);
tintFn = pdfFunctionFactory.create(cs[3]);
return new colorspace_1._PdfAlternateCS(numComps, baseCS, tintFn);
case 'Lab':
params = xref.fetchIfRef(cs[1]);
whitePoint = params.getArray('WhitePoint');
blackPoint = params.getArray('BlackPoint');
range = params.getArray('Range');
return new colorspace_1._PdfLabCS(whitePoint, blackPoint, range);
default:
return this.gray;
}
}
return this.gray;
};
Object.defineProperty(_PdfColorSpaceUtils.prototype, "gray", {
get: function () {
return utils_1._defineLazyProperty(this, 'gray', new colorspace_1._PdfDeviceGrayCS());
},
enumerable: true,
configurable: true
});
Object.defineProperty(_PdfColorSpaceUtils.prototype, "rgb", {
get: function () {
return utils_1._defineLazyProperty(this, 'rgb', new colorspace_1._PdfDeviceRgbCS());
},
enumerable: true,
configurable: true
});
Object.defineProperty(_PdfColorSpaceUtils.prototype, "rgba", {
get: function () {
return utils_1._defineLazyProperty(this, 'rgba', new colorspace_1._PdfDeviceRgbaCS());
},
enumerable: true,
configurable: true
});
Object.defineProperty(_PdfColorSpaceUtils.prototype, "cmyk", {
get: function () {
return utils_1._defineLazyProperty(this, 'cmyk', new colorspace_1._PdfDeviceCmykCS());
},
enumerable: true,
configurable: true
});
return _PdfColorSpaceUtils;
}());
exports._PdfColorSpaceUtils = _PdfColorSpaceUtils;
});
|