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/*
* 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.
SK_COMPILE_ASSERT(SkPDFResourceDict::kExtGState_ResourceType == 0,
resource_type_mismatch);
SK_COMPILE_ASSERT(SkPDFResourceDict::kPattern_ResourceType == 1,
resource_type_mismatch);
SK_COMPILE_ASSERT(SkPDFResourceDict::kXObject_ResourceType == 2,
resource_type_mismatch);
SK_COMPILE_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 < SkPDFResourceDict::kResourceTypeCount);
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(SkNEW(SkPDFDict));
for (int i = 0; i < resourceList.count(); i++) {
SkString keyString = SkPDFResourceDict::getResourceName(type, i);
SkAutoTUnref<SkPDFName> keyName(SkNEW_ARGS(SkPDFName, (keyString)));
SkAutoTUnref<SkPDFObjRef> ref(
SkNEW_ARGS(SkPDFObjRef, (resourceList[i])));
resources->insert(keyName, ref);
}
dst->insert(get_resource_type_name(type), resources);
}
SkPDFDict* SkPDFResourceDict::Create(
const SkTDArray<SkPDFObject*>* gStateResources,
const SkTDArray<SkPDFObject*>* patternResources,
const SkTDArray<SkPDFObject*>* xObjectResources,
const SkTDArray<SkPDFObject*>* fontResources) {
SkAutoTUnref<SkPDFDict> dict(SkNEW(SkPDFDict));
static const char kProcs[][7] = {
"PDF", "Text", "ImageB", "ImageC", "ImageI"};
SkAutoTUnref<SkPDFArray> procSets(SkNEW(SkPDFArray));
procSets->reserve(SK_ARRAY_COUNT(kProcs));
for (size_t i = 0; i < SK_ARRAY_COUNT(kProcs); i++) {
procSets->appendName(kProcs[i]);
}
dict->insert("ProcSets", procSets);
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();
}
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