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Unified Diff: core/src/fpdfdoc/doc_tagged.cpp

Issue 1417893003: Add type cast definitions for CPDF_Array. (Closed) Base URL: https://pdfium.googlesource.com/pdfium.git@master
Patch Set: Created 5 years, 2 months ago
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Index: core/src/fpdfdoc/doc_tagged.cpp
diff --git a/core/src/fpdfdoc/doc_tagged.cpp b/core/src/fpdfdoc/doc_tagged.cpp
index ac29d901186b4eb3468407479be81fe7addfd1ec..2b20e07bb8241d3a96be98652e9ddd2eb033bfdf 100644
--- a/core/src/fpdfdoc/doc_tagged.cpp
+++ b/core/src/fpdfdoc/doc_tagged.cpp
@@ -46,48 +46,47 @@ CPDF_StructTreeImpl::~CPDF_StructTreeImpl() {
}
}
void CPDF_StructTreeImpl::LoadDocTree() {
- m_pPage = NULL;
- if (m_pTreeRoot == NULL) {
+ m_pPage = nullptr;
+ if (!m_pTreeRoot)
return;
- }
+
CPDF_Object* pKids = m_pTreeRoot->GetElementValue(FX_BSTRC("K"));
- if (pKids == NULL) {
+ if (!pKids)
return;
- }
if (CPDF_Dictionary* pDict = pKids->AsDictionary()) {
CPDF_StructElementImpl* pStructElementImpl =
- new CPDF_StructElementImpl(this, NULL, pDict);
+ new CPDF_StructElementImpl(this, nullptr, pDict);
m_Kids.Add(pStructElementImpl);
return;
}
- if (pKids->GetType() != PDFOBJ_ARRAY) {
+ CPDF_Array* pArray = pKids->AsArray();
+ if (!pArray)
return;
- }
- CPDF_Array* pArray = (CPDF_Array*)pKids;
+
for (FX_DWORD i = 0; i < pArray->GetCount(); i++) {
CPDF_Dictionary* pKid = pArray->GetDict(i);
CPDF_StructElementImpl* pStructElementImpl =
- new CPDF_StructElementImpl(this, NULL, pKid);
+ new CPDF_StructElementImpl(this, nullptr, pKid);
m_Kids.Add(pStructElementImpl);
}
}
void CPDF_StructTreeImpl::LoadPageTree(const CPDF_Dictionary* pPageDict) {
m_pPage = pPageDict;
- if (m_pTreeRoot == NULL) {
+ if (!m_pTreeRoot)
return;
- }
+
CPDF_Object* pKids = m_pTreeRoot->GetElementValue(FX_BSTRC("K"));
- if (pKids == NULL) {
+ if (!pKids)
return;
- }
+
FX_DWORD dwKids = 0;
- if (pKids->IsDictionary()) {
+ if (pKids->IsDictionary())
dwKids = 1;
- } else if (pKids->GetType() == PDFOBJ_ARRAY) {
- dwKids = ((CPDF_Array*)pKids)->GetCount();
- } else {
+ else if (CPDF_Array* pArray = pKids->AsArray())
+ dwKids = pArray->GetCount();
+ else
return;
- }
+
FX_DWORD i;
m_Kids.SetSize(dwKids);
for (i = 0; i < dwKids; i++) {
@@ -101,11 +100,10 @@ void CPDF_StructTreeImpl::LoadPageTree(const CPDF_Dictionary* pPageDict) {
CPDF_NumberTree parent_tree(pParentTree);
int parents_id = pPageDict->GetInteger(FX_BSTRC("StructParents"), -1);
if (parents_id >= 0) {
- CPDF_Object* pParents = parent_tree.LookupValue(parents_id);
- if (pParents == NULL || pParents->GetType() != PDFOBJ_ARRAY) {
+ CPDF_Array* pParentArray = ToArray(parent_tree.LookupValue(parents_id));
+ if (!pParentArray)
return;
- }
- CPDF_Array* pParentArray = (CPDF_Array*)pParents;
+
for (i = 0; i < pParentArray->GetCount(); i++) {
CPDF_Dictionary* pParent = pParentArray->GetDict(i);
if (pParent == NULL) {
@@ -171,27 +169,23 @@ FX_BOOL CPDF_StructTreeImpl::AddTopLevelNode(CPDF_Dictionary* pDict,
return FALSE;
}
}
- if (pObj->GetType() == PDFOBJ_ARRAY) {
- CPDF_Array* pTopKids = (CPDF_Array*)pObj;
+ if (CPDF_Array* pTopKids = pObj->AsArray()) {
FX_DWORD i;
FX_BOOL bSave = FALSE;
for (i = 0; i < pTopKids->GetCount(); i++) {
CPDF_Object* pKidRef = pTopKids->GetElement(i);
- if (pKidRef == NULL || pKidRef->GetType() != PDFOBJ_REFERENCE) {
+ if (!pKidRef || pKidRef->GetType() != PDFOBJ_REFERENCE)
continue;
- }
- if (((CPDF_Reference*)pKidRef)->GetRefObjNum() != pDict->GetObjNum()) {
+ if (((CPDF_Reference*)pKidRef)->GetRefObjNum() != pDict->GetObjNum())
continue;
- }
- if (m_Kids[i]) {
+
+ if (m_Kids[i])
m_Kids[i]->Release();
- }
m_Kids[i] = pElement->Retain();
bSave = TRUE;
}
- if (!bSave) {
+ if (!bSave)
return FALSE;
- }
}
return TRUE;
}
@@ -231,15 +225,14 @@ void CPDF_StructElementImpl::Release() {
void CPDF_StructElementImpl::LoadKids(CPDF_Dictionary* pDict) {
CPDF_Object* pObj = pDict->GetElement(FX_BSTRC("Pg"));
FX_DWORD PageObjNum = 0;
- if (pObj && pObj->GetType() == PDFOBJ_REFERENCE) {
+ if (pObj && pObj->GetType() == PDFOBJ_REFERENCE)
PageObjNum = ((CPDF_Reference*)pObj)->GetRefObjNum();
- }
+
CPDF_Object* pKids = pDict->GetElementValue(FX_BSTRC("K"));
- if (pKids == NULL) {
+ if (!pKids)
return;
- }
- if (pKids->GetType() == PDFOBJ_ARRAY) {
- CPDF_Array* pArray = (CPDF_Array*)pKids;
+
+ if (CPDF_Array* pArray = pKids->AsArray()) {
m_Kids.SetSize(pArray->GetCount());
for (FX_DWORD i = 0; i < pArray->GetCount(); i++) {
CPDF_Object* pKid = pArray->GetElementValue(i);
@@ -316,25 +309,22 @@ void CPDF_StructElementImpl::LoadKid(FX_DWORD PageObjNum,
static CPDF_Dictionary* FindAttrDict(CPDF_Object* pAttrs,
const CFX_ByteStringC& owner,
FX_FLOAT nLevel = 0.0F) {
- if (nLevel > nMaxRecursion) {
- return NULL;
- }
- if (pAttrs == NULL) {
- return NULL;
- }
- CPDF_Dictionary* pDict = NULL;
+ if (nLevel > nMaxRecursion)
+ return nullptr;
+ if (!pAttrs)
+ return nullptr;
+
+ CPDF_Dictionary* pDict = nullptr;
if (pAttrs->IsDictionary()) {
pDict = pAttrs->AsDictionary();
} else if (pAttrs->GetType() == PDFOBJ_STREAM) {
pDict = ((CPDF_Stream*)pAttrs)->GetDict();
- } else if (pAttrs->GetType() == PDFOBJ_ARRAY) {
- CPDF_Array* pArray = (CPDF_Array*)pAttrs;
+ } else if (CPDF_Array* pArray = pAttrs->AsArray()) {
for (FX_DWORD i = 0; i < pArray->GetCount(); i++) {
CPDF_Object* pElement = pArray->GetElementValue(i);
pDict = FindAttrDict(pElement, owner, nLevel + 1);
- if (pDict) {
+ if (pDict)
return pDict;
- }
}
}
if (pDict && pDict->GetString(FX_BSTRC("O")) == owner) {
@@ -370,44 +360,40 @@ CPDF_Object* CPDF_StructElementImpl::GetAttr(const CFX_ByteStringC& owner,
}
}
CPDF_Object* pC = m_pDict->GetElementValue(FX_BSTRC("C"));
- if (pC == NULL) {
- return NULL;
- }
+ if (!pC)
+ return nullptr;
+
CPDF_Dictionary* pClassMap =
m_pTree->m_pTreeRoot->GetDict(FX_BSTRC("ClassMap"));
- if (pClassMap == NULL) {
- return NULL;
- }
- if (pC->GetType() == PDFOBJ_ARRAY) {
- CPDF_Array* pArray = (CPDF_Array*)pC;
+ if (!pClassMap)
+ return nullptr;
+
+ if (CPDF_Array* pArray = pC->AsArray()) {
for (FX_DWORD i = 0; i < pArray->GetCount(); i++) {
CFX_ByteString class_name = pArray->GetString(i);
CPDF_Dictionary* pClassDict = pClassMap->GetDict(class_name);
- if (pClassDict && pClassDict->GetString(FX_BSTRC("O")) == owner) {
+ if (pClassDict && pClassDict->GetString(FX_BSTRC("O")) == owner)
return pClassDict->GetElementValue(name);
- }
}
- return NULL;
+ return nullptr;
}
CFX_ByteString class_name = pC->GetString();
CPDF_Dictionary* pClassDict = pClassMap->GetDict(class_name);
- if (pClassDict && pClassDict->GetString(FX_BSTRC("O")) == owner) {
+ if (pClassDict && pClassDict->GetString(FX_BSTRC("O")) == owner)
return pClassDict->GetElementValue(name);
- }
- return NULL;
+ return nullptr;
}
CPDF_Object* CPDF_StructElementImpl::GetAttr(const CFX_ByteStringC& owner,
const CFX_ByteStringC& name,
FX_BOOL bInheritable,
int subindex) {
CPDF_Object* pAttr = GetAttr(owner, name, bInheritable);
- if (pAttr == NULL || subindex == -1 || pAttr->GetType() != PDFOBJ_ARRAY) {
+ CPDF_Array* pArray = ToArray(pAttr);
+ if (!pArray || subindex == -1)
return pAttr;
- }
- CPDF_Array* pArray = (CPDF_Array*)pAttr;
- if (subindex >= (int)pArray->GetCount()) {
+
+ if (subindex >= static_cast<int>(pArray->GetCount()))
return pAttr;
- }
return pArray->GetElementValue(subindex);
}
CFX_ByteString CPDF_StructElementImpl::GetName(
@@ -427,11 +413,9 @@ FX_ARGB CPDF_StructElementImpl::GetColor(const CFX_ByteStringC& owner,
FX_ARGB default_value,
FX_BOOL bInheritable,
int subindex) {
- CPDF_Object* pAttr = GetAttr(owner, name, bInheritable, subindex);
- if (pAttr == NULL || pAttr->GetType() != PDFOBJ_ARRAY) {
+ CPDF_Array* pArray = ToArray(GetAttr(owner, name, bInheritable, subindex));
+ if (!pArray)
return default_value;
- }
- CPDF_Array* pArray = (CPDF_Array*)pAttr;
return 0xff000000 | ((int)(pArray->GetNumber(0) * 255) << 16) |
((int)(pArray->GetNumber(1) * 255) << 8) |
(int)(pArray->GetNumber(2) * 255);
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