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-rw-r--r--core/fpdfdoc/doc_tagged.cpp71
-rw-r--r--core/fpdfdoc/include/fpdf_tagged.h39
-rw-r--r--core/fpdfdoc/tagged_int.h30
3 files changed, 72 insertions, 68 deletions
diff --git a/core/fpdfdoc/doc_tagged.cpp b/core/fpdfdoc/doc_tagged.cpp
index 2eca698614..cfa9e4663c 100644
--- a/core/fpdfdoc/doc_tagged.cpp
+++ b/core/fpdfdoc/doc_tagged.cpp
@@ -15,43 +15,59 @@
#include "core/fpdfdoc/include/fpdf_tagged.h"
#include "core/fpdfdoc/tagged_int.h"
+namespace {
+
const int nMaxRecursion = 32;
-static FX_BOOL IsTagged(const CPDF_Document* pDoc) {
+
+bool IsTagged(const CPDF_Document* pDoc) {
CPDF_Dictionary* pCatalog = pDoc->GetRoot();
CPDF_Dictionary* pMarkInfo = pCatalog->GetDictBy("MarkInfo");
return pMarkInfo && pMarkInfo->GetIntegerBy("Marked");
}
-CPDF_StructTree* CPDF_StructTree::LoadPage(const CPDF_Document* pDoc,
+
+} // namespace
+
+// static
+IPDF_StructTree* IPDF_StructTree::LoadPage(const CPDF_Document* pDoc,
const CPDF_Dictionary* pPageDict) {
- if (!IsTagged(pDoc)) {
- return NULL;
- }
+ if (!IsTagged(pDoc))
+ return nullptr;
+
CPDF_StructTreeImpl* pTree = new CPDF_StructTreeImpl(pDoc);
pTree->LoadPageTree(pPageDict);
return pTree;
}
-CPDF_StructTree* CPDF_StructTree::LoadDoc(const CPDF_Document* pDoc) {
- if (!IsTagged(pDoc)) {
- return NULL;
- }
+
+// static.
+IPDF_StructTree* IPDF_StructTree::LoadDoc(const CPDF_Document* pDoc) {
+ if (!IsTagged(pDoc))
+ return nullptr;
+
CPDF_StructTreeImpl* pTree = new CPDF_StructTreeImpl(pDoc);
pTree->LoadDocTree();
return pTree;
}
-CPDF_StructTreeImpl::CPDF_StructTreeImpl(const CPDF_Document* pDoc) {
- CPDF_Dictionary* pCatalog = pDoc->GetRoot();
- m_pTreeRoot = pCatalog->GetDictBy("StructTreeRoot");
- if (!m_pTreeRoot) {
- return;
- }
- m_pRoleMap = m_pTreeRoot->GetDictBy("RoleMap");
-}
+
+CPDF_StructTreeImpl::CPDF_StructTreeImpl(const CPDF_Document* pDoc)
+ : m_pTreeRoot(pDoc->GetRoot()->GetDictBy("StructTreeRoot")),
+ m_pRoleMap(m_pTreeRoot ? m_pTreeRoot->GetDictBy("RoleMap") : nullptr),
+ m_pPage(nullptr) {}
+
CPDF_StructTreeImpl::~CPDF_StructTreeImpl() {
- for (int i = 0; i < m_Kids.GetSize(); i++)
- if (m_Kids[i]) {
+ for (int i = 0; i < m_Kids.GetSize(); i++) {
+ if (m_Kids[i])
m_Kids[i]->Release();
- }
+ }
}
+
+int CPDF_StructTreeImpl::CountTopElements() const {
+ return m_Kids.GetSize();
+}
+
+IPDF_StructElement* CPDF_StructTreeImpl::GetTopElement(int i) const {
+ return m_Kids.GetAt(i);
+}
+
void CPDF_StructTreeImpl::LoadDocTree() {
m_pPage = nullptr;
if (!m_pTreeRoot)
@@ -197,22 +213,23 @@ FX_BOOL CPDF_StructTreeImpl::AddTopLevelNode(CPDF_Dictionary* pDict,
}
return TRUE;
}
+
CPDF_StructElementImpl::CPDF_StructElementImpl(CPDF_StructTreeImpl* pTree,
CPDF_StructElementImpl* pParent,
CPDF_Dictionary* pDict)
- : m_RefCount(0) {
- m_pTree = pTree;
- m_pDict = pDict;
- m_Type = pDict->GetStringBy("S");
+ : m_RefCount(0),
+ m_pTree(pTree),
+ m_pParent(pParent),
+ m_pDict(pDict),
+ m_Type(pDict->GetStringBy("S")) {
if (pTree->m_pRoleMap) {
CFX_ByteString mapped = pTree->m_pRoleMap->GetStringBy(m_Type);
- if (!mapped.IsEmpty()) {
+ if (!mapped.IsEmpty())
m_Type = mapped;
- }
}
- m_pParent = pParent;
LoadKids(pDict);
}
+
CPDF_StructElementImpl::~CPDF_StructElementImpl() {
for (int i = 0; i < m_Kids.GetSize(); i++) {
if (m_Kids[i].m_Type == CPDF_StructKid::Element &&
diff --git a/core/fpdfdoc/include/fpdf_tagged.h b/core/fpdfdoc/include/fpdf_tagged.h
index 807f178229..43d69e8db9 100644
--- a/core/fpdfdoc/include/fpdf_tagged.h
+++ b/core/fpdfdoc/include/fpdf_tagged.h
@@ -9,66 +9,55 @@
#include "core/fxge/include/fx_dib.h"
+class CPDF_Dictionary;
class CPDF_Document;
-class CPDF_StructElement;
-class CPDF_StructTree;
-struct CPDF_StructKid;
+class IPDF_StructElement;
-class CPDF_StructTree {
+class IPDF_StructTree {
public:
- static CPDF_StructTree* LoadDoc(const CPDF_Document* pDoc);
-
- static CPDF_StructTree* LoadPage(const CPDF_Document* pDoc,
+ static IPDF_StructTree* LoadDoc(const CPDF_Document* pDoc);
+ static IPDF_StructTree* LoadPage(const CPDF_Document* pDoc,
const CPDF_Dictionary* pPageDict);
- virtual ~CPDF_StructTree() {}
+ virtual ~IPDF_StructTree() {}
virtual int CountTopElements() const = 0;
-
- virtual CPDF_StructElement* GetTopElement(int i) const = 0;
+ virtual IPDF_StructElement* GetTopElement(int i) const = 0;
};
+
struct CPDF_StructKid {
enum { Invalid, Element, PageContent, StreamContent, Object } m_Type;
union {
struct {
- CPDF_StructElement* m_pElement;
-
+ IPDF_StructElement* m_pElement;
CPDF_Dictionary* m_pDict;
} m_Element;
struct {
uint32_t m_PageObjNum;
-
uint32_t m_ContentId;
} m_PageContent;
struct {
uint32_t m_PageObjNum;
-
uint32_t m_ContentId;
-
uint32_t m_RefObjNum;
} m_StreamContent;
struct {
uint32_t m_PageObjNum;
-
uint32_t m_RefObjNum;
} m_Object;
};
};
-class CPDF_StructElement {
- public:
- virtual ~CPDF_StructElement() {}
- virtual CPDF_StructTree* GetTree() const = 0;
+class IPDF_StructElement {
+ public:
+ virtual ~IPDF_StructElement() {}
+ virtual IPDF_StructTree* GetTree() const = 0;
virtual const CFX_ByteString& GetType() const = 0;
-
- virtual CPDF_StructElement* GetParent() const = 0;
-
+ virtual IPDF_StructElement* GetParent() const = 0;
virtual CPDF_Dictionary* GetDict() const = 0;
-
virtual int CountKids() const = 0;
-
virtual const CPDF_StructKid& GetKid(int index) const = 0;
virtual CPDF_Object* GetAttr(const CFX_ByteStringC& owner,
diff --git a/core/fpdfdoc/tagged_int.h b/core/fpdfdoc/tagged_int.h
index f6e845a7af..7b9a32fa84 100644
--- a/core/fpdfdoc/tagged_int.h
+++ b/core/fpdfdoc/tagged_int.h
@@ -13,16 +13,14 @@
class CPDF_StructElementImpl;
-class CPDF_StructTreeImpl : public CPDF_StructTree {
+class CPDF_StructTreeImpl final : public IPDF_StructTree {
public:
explicit CPDF_StructTreeImpl(const CPDF_Document* pDoc);
~CPDF_StructTreeImpl() override;
- // CPDF_StructTree
- int CountTopElements() const override { return m_Kids.GetSize(); }
- CPDF_StructElement* GetTopElement(int i) const override {
- return (CPDF_StructElement*)m_Kids.GetAt(i);
- }
+ // IPDF_StructTree:
+ int CountTopElements() const override;
+ IPDF_StructElement* GetTopElement(int i) const override;
void LoadDocTree();
void LoadPageTree(const CPDF_Dictionary* pPageDict);
@@ -34,23 +32,23 @@ class CPDF_StructTreeImpl : public CPDF_StructTree {
CPDF_StructElementImpl* pElement);
protected:
- const CPDF_Dictionary* m_pTreeRoot;
- const CPDF_Dictionary* m_pRoleMap;
+ const CPDF_Dictionary* const m_pTreeRoot;
+ const CPDF_Dictionary* const m_pRoleMap;
const CPDF_Dictionary* m_pPage;
CFX_ArrayTemplate<CPDF_StructElementImpl*> m_Kids;
friend class CPDF_StructElementImpl;
};
-class CPDF_StructElementImpl final : public CPDF_StructElement {
+class CPDF_StructElementImpl final : public IPDF_StructElement {
public:
CPDF_StructElementImpl(CPDF_StructTreeImpl* pTree,
CPDF_StructElementImpl* pParent,
CPDF_Dictionary* pDict);
- // CPDF_StructTreeImpl
- CPDF_StructTree* GetTree() const override { return m_pTree; }
+ // IPDF_StructElement:
+ IPDF_StructTree* GetTree() const override { return m_pTree; }
const CFX_ByteString& GetType() const override { return m_Type; }
- CPDF_StructElement* GetParent() const override { return m_pParent; }
+ IPDF_StructElement* GetParent() const override { return m_pParent; }
CPDF_Dictionary* GetDict() const override { return m_pDict; }
int CountKids() const override { return m_Kids.GetSize(); }
const CPDF_StructKid& GetKid(int index) const override {
@@ -93,12 +91,12 @@ class CPDF_StructElementImpl final : public CPDF_StructElement {
protected:
~CPDF_StructElementImpl() override;
- CPDF_StructTreeImpl* m_pTree;
+ int m_RefCount;
+ CPDF_StructTreeImpl* const m_pTree;
+ CPDF_StructElementImpl* const m_pParent;
+ CPDF_Dictionary* const m_pDict;
CFX_ByteString m_Type;
- CPDF_StructElementImpl* m_pParent;
- CPDF_Dictionary* m_pDict;
CFX_ArrayTemplate<CPDF_StructKid> m_Kids;
- int m_RefCount;
friend class CPDF_StructTreeImpl;
};
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-05 09:21:15 +0000