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
|
/*
* Copyright 2013 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkPDFResourceDict.h"
#include "SkPostConfig.h"
// Sanity check that the values of enum SkPDFResourceType correspond to the
// expected values as defined in the arrays below.
// If these are failing, you may need to update the resource_type_prefixes
// and resource_type_names arrays below.
static_assert(SkPDFResourceDict::kExtGState_ResourceType == 0, "resource_type_mismatch");
static_assert(SkPDFResourceDict::kPattern_ResourceType == 1, "resource_type_mismatch");
static_assert(SkPDFResourceDict::kXObject_ResourceType == 2, "resource_type_mismatch");
static_assert(SkPDFResourceDict::kFont_ResourceType == 3, "resource_type_mismatch");
static const char resource_type_prefixes[] = {
'G',
'P',
'X',
'F'
};
static const char* resource_type_names[] = {
"ExtGState",
"Pattern",
"XObject",
"Font"
};
static char get_resource_type_prefix(
SkPDFResourceDict::SkPDFResourceType type) {
SkASSERT(type >= 0);
SkASSERT(type < SkPDFResourceDict::kResourceTypeCount);
return resource_type_prefixes[type];
}
static const char* get_resource_type_name(
SkPDFResourceDict::SkPDFResourceType type) {
SkASSERT(type >= 0);
SkASSERT(type < SK_ARRAY_COUNT(resource_type_names));
return resource_type_names[type];
}
SkString SkPDFResourceDict::getResourceName(
SkPDFResourceDict::SkPDFResourceType type, int key) {
SkString keyString;
keyString.printf("%c%d", get_resource_type_prefix(type), key);
return keyString;
}
static void add_subdict(
const SkTDArray<SkPDFObject*>& resourceList,
SkPDFResourceDict::SkPDFResourceType type,
SkPDFDict* dst) {
if (0 == resourceList.count()) {
return;
}
SkAutoTUnref<SkPDFDict> resources(new SkPDFDict);
for (int i = 0; i < resourceList.count(); i++) {
resources->insertObjRef(SkPDFResourceDict::getResourceName(type, i),
SkRef(resourceList[i]));
}
dst->insertObject(get_resource_type_name(type), resources.detach());
}
SkPDFDict* SkPDFResourceDict::Create(
const SkTDArray<SkPDFObject*>* gStateResources,
const SkTDArray<SkPDFObject*>* patternResources,
const SkTDArray<SkPDFObject*>* xObjectResources,
const SkTDArray<SkPDFObject*>* fontResources) {
SkAutoTUnref<SkPDFDict> dict(new SkPDFDict);
static const char kProcs[][7] = {
"PDF", "Text", "ImageB", "ImageC", "ImageI"};
SkAutoTUnref<SkPDFArray> procSets(new SkPDFArray);
procSets->reserve(SK_ARRAY_COUNT(kProcs));
for (size_t i = 0; i < SK_ARRAY_COUNT(kProcs); i++) {
procSets->appendName(kProcs[i]);
}
dict->insertObject("ProcSets", procSets.detach());
if (gStateResources) {
add_subdict(*gStateResources, kExtGState_ResourceType, dict);
}
if (patternResources) {
add_subdict(*patternResources, kPattern_ResourceType, dict);
}
if (xObjectResources) {
add_subdict(*xObjectResources, kXObject_ResourceType, dict);
}
if (fontResources) {
add_subdict(*fontResources, kFont_ResourceType, dict);
}
return dict.detach();
}
|
