| // Copyright 2014 PDFium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
| |
| #include "../../../include/fpdfapi/fpdf_parser.h" |
| #include "../../../include/fxcrt/fx_string.h" |
| |
| //static |
| int CPDF_Object::s_nCurRefDepth = 0; |
| |
| void CPDF_Object::Release() |
| { |
| if (m_ObjNum) { |
| return; |
| } |
| Destroy(); |
| } |
| void CPDF_Object::Destroy() |
| { |
| switch (m_Type) { |
| case PDFOBJ_STRING: |
| delete (CPDF_String*)this; |
| break; |
| case PDFOBJ_NAME: |
| delete (CPDF_Name*)this; |
| break; |
| case PDFOBJ_ARRAY: |
| delete (CPDF_Array*)this; |
| break; |
| case PDFOBJ_DICTIONARY: |
| delete (CPDF_Dictionary*)this; |
| break; |
| case PDFOBJ_STREAM: |
| delete (CPDF_Stream*)this; |
| break; |
| default: |
| delete this; |
| } |
| } |
| CFX_ByteString CPDF_Object::GetString() const |
| { |
| switch (m_Type) { |
| case PDFOBJ_BOOLEAN: |
| return ((CPDF_Boolean*)this)->m_bValue ? "true" : "false"; |
| case PDFOBJ_NUMBER: |
| return ((CPDF_Number*)this)->GetString(); |
| case PDFOBJ_STRING: |
| return ((CPDF_String*)this)->m_String; |
| case PDFOBJ_NAME: |
| return ((CPDF_Name*)this)->m_Name; |
| case PDFOBJ_REFERENCE: { |
| CPDF_Reference* pRef = (CPDF_Reference*)(void*)this; |
| if (pRef->m_pObjList == NULL) { |
| break; |
| } |
| CPDF_Object* pObj = pRef->m_pObjList->GetIndirectObject(pRef->m_RefObjNum); |
| if (pObj == NULL) { |
| return CFX_ByteString(); |
| } |
| return pObj->GetString(); |
| } |
| } |
| return CFX_ByteString(); |
| } |
| CFX_ByteStringC CPDF_Object::GetConstString() const |
| { |
| switch (m_Type) { |
| case PDFOBJ_STRING: |
| return CFX_ByteStringC((const uint8_t*)((CPDF_String*)this)->m_String, ((CPDF_String*)this)->m_String.GetLength()); |
| case PDFOBJ_NAME: |
| return CFX_ByteStringC((const uint8_t*)((CPDF_Name*)this)->m_Name, ((CPDF_Name*)this)->m_Name.GetLength()); |
| case PDFOBJ_REFERENCE: { |
| CPDF_Reference* pRef = (CPDF_Reference*)(void*)this; |
| if (pRef->m_pObjList == NULL) { |
| break; |
| } |
| CPDF_Object* pObj = pRef->m_pObjList->GetIndirectObject(pRef->m_RefObjNum); |
| if (pObj == NULL) { |
| return CFX_ByteStringC(); |
| } |
| return pObj->GetConstString(); |
| } |
| } |
| return CFX_ByteStringC(); |
| } |
| FX_FLOAT CPDF_Object::GetNumber() const |
| { |
| switch (m_Type) { |
| case PDFOBJ_NUMBER: |
| return ((CPDF_Number*)this)->GetNumber(); |
| case PDFOBJ_REFERENCE: { |
| CPDF_Reference* pRef = (CPDF_Reference*)(void*)this; |
| if (pRef->m_pObjList == NULL) { |
| break; |
| } |
| CPDF_Object* pObj = pRef->m_pObjList->GetIndirectObject(pRef->m_RefObjNum); |
| if (pObj == NULL) { |
| return 0; |
| } |
| return pObj->GetNumber(); |
| } |
| } |
| return 0; |
| } |
| FX_FLOAT CPDF_Object::GetNumber16() const |
| { |
| return GetNumber(); |
| } |
| int CPDF_Object::GetInteger() const |
| { |
| CFX_AutoRestorer<int> restorer(&s_nCurRefDepth); |
| if (++s_nCurRefDepth > OBJECT_REF_MAX_DEPTH) { |
| return 0; |
| } |
| switch (m_Type) { |
| case PDFOBJ_BOOLEAN: |
| return ((CPDF_Boolean*)this)->m_bValue; |
| case PDFOBJ_NUMBER: |
| return ((CPDF_Number*)this)->GetInteger(); |
| case PDFOBJ_REFERENCE: { |
| CPDF_Reference* pRef = (CPDF_Reference*)(void*)this; |
| PARSE_CONTEXT context; |
| FXSYS_memset32(&context, 0, sizeof(PARSE_CONTEXT)); |
| if (pRef->m_pObjList == NULL) { |
| return 0; |
| } |
| CPDF_Object* pObj = pRef->m_pObjList->GetIndirectObject(pRef->m_RefObjNum, &context); |
| if (pObj == NULL) { |
| return 0; |
| } |
| return pObj->GetInteger(); |
| } |
| } |
| return 0; |
| } |
| CPDF_Dictionary* CPDF_Object::GetDict() const |
| { |
| switch (m_Type) { |
| case PDFOBJ_DICTIONARY: |
| return (CPDF_Dictionary*)this; |
| case PDFOBJ_STREAM: |
| return ((CPDF_Stream*)this)->GetDict(); |
| case PDFOBJ_REFERENCE: { |
| CPDF_Reference* pRef = (CPDF_Reference*)this; |
| if (pRef->m_pObjList == NULL) { |
| break; |
| } |
| CPDF_Object* pObj = pRef->m_pObjList->GetIndirectObject(pRef->m_RefObjNum); |
| if (pObj == NULL) { |
| return NULL; |
| } |
| return pObj->GetDict(); |
| } |
| } |
| return NULL; |
| } |
| CPDF_Array* CPDF_Object::GetArray() const |
| { |
| if (m_Type == PDFOBJ_ARRAY) |
| return (CPDF_Array*)this; |
| else |
| return NULL; |
| } |
| void CPDF_Object::SetString(const CFX_ByteString& str) |
| { |
| ASSERT(this != NULL); |
| switch (m_Type) { |
| case PDFOBJ_BOOLEAN: |
| ((CPDF_Boolean*)this)->m_bValue = str == FX_BSTRC("true") ? 1 : 0; |
| return; |
| case PDFOBJ_NUMBER: |
| ((CPDF_Number*)this)->SetString(str); |
| return; |
| case PDFOBJ_STRING: |
| ((CPDF_String*)this)->m_String = str; |
| return; |
| case PDFOBJ_NAME: |
| ((CPDF_Name*)this)->m_Name = str; |
| return; |
| } |
| ASSERT(FALSE); |
| } |
| int CPDF_Object::GetDirectType() const |
| { |
| if (m_Type != PDFOBJ_REFERENCE) { |
| return m_Type; |
| } |
| CPDF_Reference* pRef = (CPDF_Reference*)this; |
| return pRef->m_pObjList->GetIndirectType(pRef->m_RefObjNum); |
| } |
| FX_BOOL CPDF_Object::IsIdentical(CPDF_Object* pOther) const |
| { |
| if (this == pOther) { |
| return TRUE; |
| } |
| if (pOther == NULL) { |
| return FALSE; |
| } |
| if (pOther->m_Type != m_Type) { |
| if (m_Type == PDFOBJ_REFERENCE && GetDirect()) { |
| return GetDirect()->IsIdentical(pOther); |
| } else if (pOther->m_Type == PDFOBJ_REFERENCE) { |
| return IsIdentical(pOther->GetDirect()); |
| } |
| return FALSE; |
| } |
| switch (m_Type) { |
| case PDFOBJ_BOOLEAN: |
| return (((CPDF_Boolean*)this)->Identical((CPDF_Boolean*)pOther)); |
| case PDFOBJ_NUMBER: |
| return (((CPDF_Number*)this)->Identical((CPDF_Number*)pOther)); |
| case PDFOBJ_STRING: |
| return (((CPDF_String*)this)->Identical((CPDF_String*)pOther)); |
| case PDFOBJ_NAME: |
| return (((CPDF_Name*)this)->Identical((CPDF_Name*)pOther)); |
| case PDFOBJ_ARRAY: |
| return (((CPDF_Array*)this)->Identical((CPDF_Array*)pOther)); |
| case PDFOBJ_DICTIONARY: |
| return (((CPDF_Dictionary*)this)->Identical((CPDF_Dictionary*)pOther)); |
| case PDFOBJ_NULL: |
| return TRUE; |
| case PDFOBJ_STREAM: |
| return (((CPDF_Stream*)this)->Identical((CPDF_Stream*)pOther)); |
| case PDFOBJ_REFERENCE: |
| return (((CPDF_Reference*)this)->Identical((CPDF_Reference*)pOther)); |
| } |
| return FALSE; |
| } |
| CPDF_Object* CPDF_Object::GetDirect() const |
| { |
| if (m_Type != PDFOBJ_REFERENCE) { |
| return (CPDF_Object*)this; |
| } |
| CPDF_Reference* pRef = (CPDF_Reference*)(void*)this; |
| if (pRef->m_pObjList == NULL) { |
| return NULL; |
| } |
| return pRef->m_pObjList->GetIndirectObject(pRef->m_RefObjNum); |
| } |
| CPDF_Object* CPDF_Object::Clone(FX_BOOL bDirect) const |
| { |
| CFX_MapPtrToPtr visited; |
| return CloneInternal(bDirect, &visited); |
| } |
| CPDF_Object* CPDF_Object::CloneInternal(FX_BOOL bDirect, CFX_MapPtrToPtr* visited) const |
| { |
| switch (m_Type) { |
| case PDFOBJ_BOOLEAN: |
| return new CPDF_Boolean(((CPDF_Boolean*)this)->m_bValue); |
| case PDFOBJ_NUMBER: |
| return new CPDF_Number(((CPDF_Number*)this)->m_bInteger, &((CPDF_Number*)this)->m_Integer); |
| case PDFOBJ_STRING: |
| return new CPDF_String(((CPDF_String*)this)->m_String, ((CPDF_String*)this)->IsHex()); |
| case PDFOBJ_NAME: |
| return new CPDF_Name(((CPDF_Name*)this)->m_Name); |
| case PDFOBJ_ARRAY: { |
| CPDF_Array* pCopy = new CPDF_Array(); |
| CPDF_Array* pThis = (CPDF_Array*)this; |
| int n = pThis->GetCount(); |
| for (int i = 0; i < n; i ++) { |
| CPDF_Object* value = (CPDF_Object*)pThis->m_Objects.GetAt(i); |
| pCopy->m_Objects.Add(value->CloneInternal(bDirect, visited)); |
| } |
| return pCopy; |
| } |
| case PDFOBJ_DICTIONARY: { |
| CPDF_Dictionary* pCopy = new CPDF_Dictionary(); |
| CPDF_Dictionary* pThis = (CPDF_Dictionary*)this; |
| FX_POSITION pos = pThis->m_Map.GetStartPosition(); |
| while (pos) { |
| CFX_ByteString key; |
| CPDF_Object* value; |
| pThis->m_Map.GetNextAssoc(pos, key, (void*&)value); |
| pCopy->m_Map.SetAt(key, value->CloneInternal(bDirect, visited)); |
| } |
| return pCopy; |
| } |
| case PDFOBJ_NULL: { |
| return new CPDF_Null; |
| } |
| case PDFOBJ_STREAM: { |
| CPDF_Stream* pThis = (CPDF_Stream*)this; |
| CPDF_StreamAcc acc; |
| acc.LoadAllData(pThis, TRUE); |
| FX_DWORD streamSize = acc.GetSize(); |
| CPDF_Stream* pObj; |
| if (pThis->GetDict()) |
| pObj = new CPDF_Stream(acc.DetachData(), streamSize, (CPDF_Dictionary*)((CPDF_Object*)pThis->GetDict())->CloneInternal(bDirect, visited)); |
| else |
| pObj = new CPDF_Stream(acc.DetachData(), streamSize, NULL); |
| return pObj; |
| } |
| case PDFOBJ_REFERENCE: { |
| CPDF_Reference* pRef = (CPDF_Reference*)this; |
| FX_DWORD obj_num = pRef->m_RefObjNum; |
| if (bDirect && !visited->GetValueAt((void*)(uintptr_t)obj_num)) { |
| visited->SetAt((void*)(uintptr_t)obj_num, (void*)1); |
| CPDF_Object* ret; |
| if (pRef->GetDirect()) |
| ret = pRef->GetDirect()->CloneInternal(TRUE, visited); |
| else |
| ret = NULL; |
| return ret; |
| } else { |
| return new CPDF_Reference(pRef->m_pObjList, obj_num); |
| } |
| } |
| } |
| return NULL; |
| } |
| CPDF_Object* CPDF_Object::CloneRef(CPDF_IndirectObjects* pDoc) const |
| { |
| if (m_ObjNum) { |
| return new CPDF_Reference(pDoc, m_ObjNum); |
| } |
| return Clone(); |
| } |
| CFX_WideString CPDF_Object::GetUnicodeText(CFX_CharMap* pCharMap) const |
| { |
| if (m_Type == PDFOBJ_STRING) { |
| return PDF_DecodeText(((CPDF_String*)this)->m_String, pCharMap); |
| } else if (m_Type == PDFOBJ_STREAM) { |
| CPDF_StreamAcc stream; |
| stream.LoadAllData((CPDF_Stream*)this, FALSE); |
| CFX_WideString result = PDF_DecodeText(stream.GetData(), stream.GetSize(), pCharMap); |
| return result; |
| } else if (m_Type == PDFOBJ_NAME) { |
| return PDF_DecodeText(((CPDF_Name*)this)->m_Name, pCharMap); |
| } |
| return CFX_WideString(); |
| } |
| void CPDF_Object::SetUnicodeText(const FX_WCHAR* pUnicodes, int len) |
| { |
| if (m_Type == PDFOBJ_STRING) { |
| ((CPDF_String*)this)->m_String = PDF_EncodeText(pUnicodes, len); |
| } else if (m_Type == PDFOBJ_STREAM) { |
| CFX_ByteString result = PDF_EncodeText(pUnicodes, len); |
| ((CPDF_Stream*)this)->SetData((uint8_t*)result.c_str(), result.GetLength(), FALSE, FALSE); |
| } |
| } |
| |
| CPDF_Number::CPDF_Number(int value) |
| : CPDF_Object(PDFOBJ_NUMBER), m_bInteger(TRUE), m_Integer(value) { |
| } |
| |
| CPDF_Number::CPDF_Number(FX_FLOAT value) |
| : CPDF_Object(PDFOBJ_NUMBER), m_bInteger(FALSE), m_Float(value) { |
| } |
| |
| CPDF_Number::CPDF_Number(FX_BOOL bInteger, void* pData) |
| : CPDF_Object(PDFOBJ_NUMBER), m_bInteger(bInteger), m_Integer(*(int*)pData) { |
| } |
| |
| CPDF_Number::CPDF_Number(const CFX_ByteStringC& str) : CPDF_Object(PDFOBJ_NUMBER) { |
| FX_atonum(str, m_bInteger, &m_Integer); |
| } |
| |
| void CPDF_Number::SetString(const CFX_ByteStringC& str) |
| { |
| FX_atonum(str, m_bInteger, &m_Integer); |
| } |
| FX_BOOL CPDF_Number::Identical(CPDF_Number* pOther) const |
| { |
| return m_bInteger == pOther->m_bInteger && m_Integer == pOther->m_Integer; |
| } |
| CFX_ByteString CPDF_Number::GetString() const |
| { |
| return m_bInteger ? CFX_ByteString::FormatInteger(m_Integer, FXFORMAT_SIGNED) : CFX_ByteString::FormatFloat(m_Float); |
| } |
| void CPDF_Number::SetNumber(FX_FLOAT value) |
| { |
| m_bInteger = FALSE; |
| m_Float = value; |
| } |
| CPDF_String::CPDF_String(const CFX_WideString& str) : CPDF_Object(PDFOBJ_STRING), m_bHex(FALSE) { |
| m_String = PDF_EncodeText(str); |
| } |
| CPDF_Array::~CPDF_Array() |
| { |
| int size = m_Objects.GetSize(); |
| CPDF_Object** pList = (CPDF_Object**)m_Objects.GetData(); |
| for (int i = 0; i < size; i ++) { |
| if (pList[i]) |
| pList[i]->Release(); |
| } |
| } |
| CFX_FloatRect CPDF_Array::GetRect() |
| { |
| CFX_FloatRect rect; |
| if (m_Type != PDFOBJ_ARRAY || m_Objects.GetSize() != 4) { |
| return rect; |
| } |
| rect.left = GetNumber(0); |
| rect.bottom = GetNumber(1); |
| rect.right = GetNumber(2); |
| rect.top = GetNumber(3); |
| return rect; |
| } |
| CFX_AffineMatrix CPDF_Array::GetMatrix() |
| { |
| CFX_AffineMatrix matrix; |
| if (m_Type != PDFOBJ_ARRAY || m_Objects.GetSize() != 6) { |
| return matrix; |
| } |
| matrix.Set(GetNumber(0), GetNumber(1), GetNumber(2), GetNumber(3), GetNumber(4), GetNumber(5)); |
| return matrix; |
| } |
| CPDF_Object* CPDF_Array::GetElement(FX_DWORD i) const |
| { |
| if (i >= (FX_DWORD)m_Objects.GetSize()) { |
| return NULL; |
| } |
| return (CPDF_Object*)m_Objects.GetAt(i); |
| } |
| CPDF_Object* CPDF_Array::GetElementValue(FX_DWORD i) const |
| { |
| if (i >= (FX_DWORD)m_Objects.GetSize()) { |
| return NULL; |
| } |
| return ((CPDF_Object*)m_Objects.GetAt(i))->GetDirect(); |
| } |
| CFX_ByteString CPDF_Array::GetString(FX_DWORD i) const |
| { |
| if (i < (FX_DWORD)m_Objects.GetSize()) { |
| CPDF_Object* p = (CPDF_Object*)m_Objects.GetAt(i); |
| return p->GetString(); |
| } |
| else |
| return CFX_ByteString(); |
| } |
| CFX_ByteStringC CPDF_Array::GetConstString(FX_DWORD i) const |
| { |
| if (i < (FX_DWORD)m_Objects.GetSize()) { |
| CPDF_Object* p = (CPDF_Object*)m_Objects.GetAt(i); |
| return p->GetConstString(); |
| } |
| else |
| return CFX_ByteStringC(); |
| } |
| int CPDF_Array::GetInteger(FX_DWORD i) const |
| { |
| if (i >= (FX_DWORD)m_Objects.GetSize()) { |
| return 0; |
| } |
| CPDF_Object* p = (CPDF_Object*)m_Objects.GetAt(i); |
| return p->GetInteger(); |
| } |
| FX_FLOAT CPDF_Array::GetNumber(FX_DWORD i) const |
| { |
| if (i >= (FX_DWORD)m_Objects.GetSize()) { |
| return 0; |
| } |
| CPDF_Object* p = (CPDF_Object*)m_Objects.GetAt(i); |
| return p->GetNumber(); |
| } |
| CPDF_Dictionary* CPDF_Array::GetDict(FX_DWORD i) const |
| { |
| CPDF_Object* p = GetElementValue(i); |
| if (p == NULL) { |
| return NULL; |
| } else if (p->GetType() == PDFOBJ_DICTIONARY) { |
| return (CPDF_Dictionary*)p; |
| } else if (p->GetType() == PDFOBJ_STREAM) { |
| return ((CPDF_Stream*)p)->GetDict(); |
| } |
| return NULL; |
| } |
| CPDF_Stream* CPDF_Array::GetStream(FX_DWORD i) const |
| { |
| CPDF_Object* p = GetElementValue(i); |
| if (p == NULL || p->GetType() != PDFOBJ_STREAM) { |
| return NULL; |
| } |
| return (CPDF_Stream*)p; |
| } |
| CPDF_Array* CPDF_Array::GetArray(FX_DWORD i) const |
| { |
| CPDF_Object* p = GetElementValue(i); |
| if (p == NULL || p->GetType() != PDFOBJ_ARRAY) { |
| return NULL; |
| } |
| return (CPDF_Array*)p; |
| } |
| void CPDF_Array::RemoveAt(FX_DWORD i) |
| { |
| ASSERT(m_Type == PDFOBJ_ARRAY); |
| if (i >= (FX_DWORD)m_Objects.GetSize()) { |
| return; |
| } |
| CPDF_Object* p = (CPDF_Object*)m_Objects.GetAt(i); |
| if (p) |
| p->Release(); |
| m_Objects.RemoveAt(i); |
| } |
| void CPDF_Array::SetAt(FX_DWORD i, CPDF_Object* pObj, CPDF_IndirectObjects* pObjs) |
| { |
| ASSERT(m_Type == PDFOBJ_ARRAY); |
| ASSERT(i < (FX_DWORD)m_Objects.GetSize()); |
| if (i >= (FX_DWORD)m_Objects.GetSize()) { |
| return; |
| } |
| CPDF_Object* pOld = (CPDF_Object*)m_Objects.GetAt(i); |
| if (pOld) |
| pOld->Release(); |
| if (pObj->GetObjNum()) { |
| ASSERT(pObjs != NULL); |
| pObj = CPDF_Reference::Create(pObjs, pObj->GetObjNum()); |
| } |
| m_Objects.SetAt(i, pObj); |
| } |
| void CPDF_Array::InsertAt(FX_DWORD index, CPDF_Object* pObj, CPDF_IndirectObjects* pObjs) |
| { |
| ASSERT(pObj != NULL); |
| if (pObj->GetObjNum()) { |
| ASSERT(pObjs != NULL); |
| pObj = CPDF_Reference::Create(pObjs, pObj->GetObjNum()); |
| } |
| m_Objects.InsertAt(index, pObj); |
| } |
| void CPDF_Array::Add(CPDF_Object* pObj, CPDF_IndirectObjects* pObjs) |
| { |
| ASSERT(pObj != NULL); |
| if (pObj->GetObjNum()) { |
| ASSERT(pObjs != NULL); |
| pObj = CPDF_Reference::Create(pObjs, pObj->GetObjNum()); |
| } |
| m_Objects.Add(pObj); |
| } |
| void CPDF_Array::AddName(const CFX_ByteString& str) |
| { |
| ASSERT(m_Type == PDFOBJ_ARRAY); |
| Add(new CPDF_Name(str)); |
| } |
| void CPDF_Array::AddString(const CFX_ByteString& str) |
| { |
| ASSERT(m_Type == PDFOBJ_ARRAY); |
| Add(new CPDF_String(str)); |
| } |
| void CPDF_Array::AddInteger(int i) |
| { |
| ASSERT(m_Type == PDFOBJ_ARRAY); |
| Add(new CPDF_Number(i)); |
| } |
| void CPDF_Array::AddNumber(FX_FLOAT f) |
| { |
| ASSERT(m_Type == PDFOBJ_ARRAY); |
| CPDF_Number* pNumber = new CPDF_Number; |
| pNumber->SetNumber(f); |
| Add(pNumber); |
| } |
| void CPDF_Array::AddReference(CPDF_IndirectObjects* pDoc, FX_DWORD objnum) |
| { |
| ASSERT(m_Type == PDFOBJ_ARRAY); |
| Add(new CPDF_Reference(pDoc, objnum)); |
| } |
| FX_BOOL CPDF_Array::Identical(CPDF_Array* pOther) const |
| { |
| if (m_Objects.GetSize() != pOther->m_Objects.GetSize()) { |
| return FALSE; |
| } |
| for (int i = 0; i < m_Objects.GetSize(); i ++) |
| if (!((CPDF_Object*)m_Objects[i])->IsIdentical((CPDF_Object*)pOther->m_Objects[i])) { |
| return FALSE; |
| } |
| return TRUE; |
| } |
| CPDF_Dictionary::~CPDF_Dictionary() |
| { |
| FX_POSITION pos = m_Map.GetStartPosition(); |
| while (pos) { |
| void* value = m_Map.GetNextValue(pos); |
| if (value) |
| ((CPDF_Object*)value)->Release(); |
| } |
| } |
| FX_POSITION CPDF_Dictionary::GetStartPos() const |
| { |
| return m_Map.GetStartPosition(); |
| } |
| CPDF_Object* CPDF_Dictionary::GetNextElement(FX_POSITION& pos, CFX_ByteString& key) const |
| { |
| if (pos == NULL) { |
| return NULL; |
| } |
| CPDF_Object* p; |
| m_Map.GetNextAssoc(pos, key, (void*&)p); |
| return p; |
| } |
| CPDF_Object* CPDF_Dictionary::GetElement(const CFX_ByteStringC& key) const |
| { |
| CPDF_Object* p = NULL; |
| m_Map.Lookup(key, (void*&)p); |
| return p; |
| } |
| CPDF_Object* CPDF_Dictionary::GetElementValue(const CFX_ByteStringC& key) const |
| { |
| CPDF_Object* p = NULL; |
| m_Map.Lookup(key, (void*&)p); |
| return p ? p->GetDirect() : NULL; |
| } |
| CFX_ByteString CPDF_Dictionary::GetString(const CFX_ByteStringC& key) const |
| { |
| CPDF_Object* p = NULL; |
| m_Map.Lookup(key, (void*&)p); |
| if (p) |
| return p->GetString(); |
| else |
| return CFX_ByteString(); |
| } |
| CFX_ByteStringC CPDF_Dictionary::GetConstString(const CFX_ByteStringC& key) const |
| { |
| CPDF_Object* p = NULL; |
| m_Map.Lookup(key, (void*&)p); |
| if (p) |
| return p->GetConstString(); |
| else |
| return CFX_ByteStringC(); |
| } |
| CFX_WideString CPDF_Dictionary::GetUnicodeText(const CFX_ByteStringC& key, CFX_CharMap* pCharMap) const |
| { |
| CPDF_Object* p = NULL; |
| m_Map.Lookup(key, (void*&)p); |
| if (p) { |
| if(p->GetType() == PDFOBJ_REFERENCE) { |
| p = ((CPDF_Reference*)p)->GetDirect(); |
| if (p) { |
| return p->GetUnicodeText(pCharMap); |
| } |
| } else { |
| return p->GetUnicodeText(pCharMap); |
| } |
| } |
| return CFX_WideString(); |
| } |
| CFX_ByteString CPDF_Dictionary::GetString(const CFX_ByteStringC& key, const CFX_ByteStringC& def) const |
| { |
| CPDF_Object* p = NULL; |
| m_Map.Lookup(key, (void*&)p); |
| if (p) { |
| return p->GetString(); |
| } |
| return CFX_ByteString(def); |
| } |
| CFX_ByteStringC CPDF_Dictionary::GetConstString(const CFX_ByteStringC& key, const CFX_ByteStringC& def) const |
| { |
| CPDF_Object* p = NULL; |
| m_Map.Lookup(key, (void*&)p); |
| if (p) |
| return p->GetConstString(); |
| else |
| return CFX_ByteStringC(def); |
| } |
| int CPDF_Dictionary::GetInteger(const CFX_ByteStringC& key) const |
| { |
| CPDF_Object* p = NULL; |
| m_Map.Lookup(key, (void*&)p); |
| if (p) { |
| return p->GetInteger(); |
| } |
| return 0; |
| } |
| int CPDF_Dictionary::GetInteger(const CFX_ByteStringC& key, int def) const |
| { |
| CPDF_Object* p = NULL; |
| m_Map.Lookup(key, (void*&)p); |
| if (p) { |
| return p->GetInteger(); |
| } |
| return def; |
| } |
| FX_FLOAT CPDF_Dictionary::GetNumber(const CFX_ByteStringC& key) const |
| { |
| CPDF_Object* p = NULL; |
| m_Map.Lookup(key, (void*&)p); |
| if (p) { |
| return p->GetNumber(); |
| } |
| return 0; |
| } |
| FX_BOOL CPDF_Dictionary::GetBoolean(const CFX_ByteStringC& key, FX_BOOL bDefault) const |
| { |
| CPDF_Object* p = NULL; |
| m_Map.Lookup(key, (void*&)p); |
| if (p && p->GetType() == PDFOBJ_BOOLEAN) { |
| return p->GetInteger(); |
| } |
| return bDefault; |
| } |
| CPDF_Dictionary* CPDF_Dictionary::GetDict(const CFX_ByteStringC& key) const |
| { |
| CPDF_Object* p = GetElementValue(key); |
| if (p == NULL) { |
| return NULL; |
| } else if (p->GetType() == PDFOBJ_DICTIONARY) { |
| return (CPDF_Dictionary*)p; |
| } else if (p->GetType() == PDFOBJ_STREAM) { |
| return ((CPDF_Stream*)p)->GetDict(); |
| } |
| return NULL; |
| } |
| CPDF_Array* CPDF_Dictionary::GetArray(const CFX_ByteStringC& key) const |
| { |
| CPDF_Object* p = GetElementValue(key); |
| if (p == NULL || p->GetType() != PDFOBJ_ARRAY) { |
| return NULL; |
| } |
| return (CPDF_Array*)p; |
| } |
| CPDF_Stream* CPDF_Dictionary::GetStream(const CFX_ByteStringC& key) const |
| { |
| CPDF_Object* p = GetElementValue(key); |
| if (p == NULL || p->GetType() != PDFOBJ_STREAM) { |
| return NULL; |
| } |
| return (CPDF_Stream*)p; |
| } |
| CFX_FloatRect CPDF_Dictionary::GetRect(const CFX_ByteStringC& key) const |
| { |
| CFX_FloatRect rect; |
| CPDF_Array* pArray = GetArray(key); |
| if (pArray) { |
| rect = pArray->GetRect(); |
| } |
| return rect; |
| } |
| CFX_AffineMatrix CPDF_Dictionary::GetMatrix(const CFX_ByteStringC& key) const |
| { |
| CFX_AffineMatrix matrix; |
| CPDF_Array* pArray = GetArray(key); |
| if (pArray) { |
| matrix = pArray->GetMatrix(); |
| } |
| return matrix; |
| } |
| FX_BOOL CPDF_Dictionary::KeyExist(const CFX_ByteStringC& key) const |
| { |
| void* value; |
| return m_Map.Lookup(key, value); |
| } |
| void CPDF_Dictionary::SetAt(const CFX_ByteStringC& key, CPDF_Object* pObj, CPDF_IndirectObjects* pObjs) |
| { |
| ASSERT(m_Type == PDFOBJ_DICTIONARY); |
| CPDF_Object* p = NULL; |
| m_Map.Lookup(key, (void*&)p); |
| if (p == pObj) { |
| return; |
| } |
| if (p) |
| p->Release(); |
| if (pObj) { |
| if (pObj->GetObjNum()) { |
| ASSERT(pObjs != NULL); |
| pObj = CPDF_Reference::Create(pObjs, pObj->GetObjNum()); |
| } |
| m_Map.SetAt(key, pObj); |
| } else { |
| m_Map.RemoveKey(key); |
| } |
| } |
| void CPDF_Dictionary::AddValue(const CFX_ByteStringC& key, CPDF_Object* pObj) |
| { |
| ASSERT(m_Type == PDFOBJ_DICTIONARY); |
| m_Map.AddValue(key, pObj); |
| } |
| void CPDF_Dictionary::RemoveAt(const CFX_ByteStringC& key) |
| { |
| ASSERT(m_Type == PDFOBJ_DICTIONARY); |
| CPDF_Object* p = NULL; |
| m_Map.Lookup(key, (void*&)p); |
| if (p == NULL) { |
| return; |
| } |
| p->Release(); |
| m_Map.RemoveKey(key); |
| } |
| void CPDF_Dictionary::ReplaceKey(const CFX_ByteStringC& oldkey, const CFX_ByteStringC& newkey) |
| { |
| ASSERT(m_Type == PDFOBJ_DICTIONARY); |
| CPDF_Object* p = NULL; |
| m_Map.Lookup(oldkey, (void*&)p); |
| if (p == NULL) { |
| return; |
| } |
| m_Map.RemoveKey(oldkey); |
| m_Map.SetAt(newkey, p); |
| } |
| FX_BOOL CPDF_Dictionary::Identical(CPDF_Dictionary* pOther) const |
| { |
| if (pOther == NULL) { |
| return FALSE; |
| } |
| if (m_Map.GetCount() != pOther->m_Map.GetCount()) { |
| return FALSE; |
| } |
| FX_POSITION pos = m_Map.GetStartPosition(); |
| while (pos) { |
| CFX_ByteString key; |
| void* value; |
| m_Map.GetNextAssoc(pos, key, value); |
| if (!value) |
| return FALSE; |
| if (!((CPDF_Object*)value)->IsIdentical(pOther->GetElement(key))) { |
| return FALSE; |
| } |
| } |
| return TRUE; |
| } |
| void CPDF_Dictionary::SetAtInteger(const CFX_ByteStringC& key, int i) |
| { |
| SetAt(key, new CPDF_Number(i)); |
| } |
| void CPDF_Dictionary::SetAtName(const CFX_ByteStringC& key, const CFX_ByteString& name) |
| { |
| SetAt(key, new CPDF_Name(name)); |
| } |
| void CPDF_Dictionary::SetAtString(const CFX_ByteStringC& key, const CFX_ByteString& str) |
| { |
| SetAt(key, new CPDF_String(str)); |
| } |
| void CPDF_Dictionary::SetAtReference(const CFX_ByteStringC& key, CPDF_IndirectObjects* pDoc, FX_DWORD objnum) |
| { |
| SetAt(key, new CPDF_Reference(pDoc, objnum)); |
| } |
| void CPDF_Dictionary::AddReference(const CFX_ByteStringC& key, CPDF_IndirectObjects* pDoc, FX_DWORD objnum) |
| { |
| AddValue(key, new CPDF_Reference(pDoc, objnum)); |
| } |
| void CPDF_Dictionary::SetAtNumber(const CFX_ByteStringC& key, FX_FLOAT f) |
| { |
| CPDF_Number* pNumber = new CPDF_Number; |
| pNumber->SetNumber(f); |
| SetAt(key, pNumber); |
| } |
| void CPDF_Dictionary::SetAtBoolean(const CFX_ByteStringC& key, FX_BOOL bValue) |
| { |
| SetAt(key, new CPDF_Boolean(bValue)); |
| } |
| void CPDF_Dictionary::SetAtRect(const CFX_ByteStringC& key, const CFX_FloatRect& rect) |
| { |
| CPDF_Array* pArray = new CPDF_Array; |
| pArray->AddNumber(rect.left); |
| pArray->AddNumber(rect.bottom); |
| pArray->AddNumber(rect.right); |
| pArray->AddNumber(rect.top); |
| SetAt(key, pArray); |
| } |
| void CPDF_Dictionary::SetAtMatrix(const CFX_ByteStringC& key, const CFX_AffineMatrix& matrix) |
| { |
| CPDF_Array* pArray = new CPDF_Array; |
| pArray->AddNumber16(matrix.a); |
| pArray->AddNumber16(matrix.b); |
| pArray->AddNumber16(matrix.c); |
| pArray->AddNumber16(matrix.d); |
| pArray->AddNumber(matrix.e); |
| pArray->AddNumber(matrix.f); |
| SetAt(key, pArray); |
| } |
| CPDF_Stream::CPDF_Stream(uint8_t* pData, FX_DWORD size, CPDF_Dictionary* pDict) |
| : CPDF_Object(PDFOBJ_STREAM) { |
| m_pDict = pDict; |
| m_dwSize = size; |
| m_GenNum = (FX_DWORD) - 1; |
| m_pDataBuf = pData; |
| m_pCryptoHandler = NULL; |
| } |
| CPDF_Stream::~CPDF_Stream() |
| { |
| if (m_GenNum == (FX_DWORD) - 1 && m_pDataBuf != NULL) { |
| FX_Free(m_pDataBuf); |
| } |
| if (m_pDict) { |
| m_pDict->Release(); |
| } |
| } |
| void CPDF_Stream::InitStream(CPDF_Dictionary* pDict) |
| { |
| if (pDict) { |
| if (m_pDict) { |
| m_pDict->Release(); |
| } |
| m_pDict = pDict; |
| } |
| if (m_GenNum == (FX_DWORD) - 1) { |
| if (m_pDataBuf) { |
| FX_Free(m_pDataBuf); |
| } |
| } |
| m_GenNum = 0; |
| m_pFile = NULL; |
| m_pCryptoHandler = NULL; |
| m_FileOffset = 0; |
| } |
| void CPDF_Stream::InitStream(uint8_t* pData, FX_DWORD size, CPDF_Dictionary* pDict) |
| { |
| InitStream(pDict); |
| m_GenNum = (FX_DWORD) - 1; |
| m_pDataBuf = FX_Alloc(uint8_t, size); |
| if (pData) { |
| FXSYS_memcpy32(m_pDataBuf, pData, size); |
| } |
| m_dwSize = size; |
| if (m_pDict) { |
| m_pDict->SetAtInteger(FX_BSTRC("Length"), size); |
| } |
| } |
| void CPDF_Stream::SetData(const uint8_t* pData, FX_DWORD size, FX_BOOL bCompressed, FX_BOOL bKeepBuf) |
| { |
| if (m_GenNum == (FX_DWORD) - 1) { |
| if (m_pDataBuf) { |
| FX_Free(m_pDataBuf); |
| } |
| } else { |
| m_GenNum = (FX_DWORD) - 1; |
| m_pCryptoHandler = NULL; |
| } |
| if (bKeepBuf) { |
| m_pDataBuf = (uint8_t*)pData; |
| } else { |
| m_pDataBuf = FX_Alloc(uint8_t, size); |
| if (pData) { |
| FXSYS_memcpy32(m_pDataBuf, pData, size); |
| } |
| } |
| m_dwSize = size; |
| if (m_pDict == NULL) { |
| m_pDict = new CPDF_Dictionary; |
| } |
| m_pDict->SetAtInteger(FX_BSTRC("Length"), size); |
| if (!bCompressed) { |
| m_pDict->RemoveAt(FX_BSTRC("Filter")); |
| m_pDict->RemoveAt(FX_BSTRC("DecodeParms")); |
| } |
| } |
| FX_BOOL CPDF_Stream::ReadRawData(FX_FILESIZE offset, uint8_t* buf, FX_DWORD size) const |
| { |
| if ((m_GenNum != (FX_DWORD) - 1) && m_pFile) { |
| return m_pFile->ReadBlock(buf, m_FileOffset + offset, size); |
| } |
| if (m_pDataBuf) { |
| FXSYS_memcpy32(buf, m_pDataBuf + offset, size); |
| } |
| return TRUE; |
| } |
| void CPDF_Stream::InitStream(IFX_FileRead *pFile, CPDF_Dictionary* pDict) |
| { |
| InitStream(pDict); |
| m_pFile = pFile; |
| m_dwSize = (FX_DWORD)pFile->GetSize(); |
| if (m_pDict) { |
| m_pDict->SetAtInteger(FX_BSTRC("Length"), m_dwSize); |
| } |
| } |
| FX_BOOL CPDF_Stream::Identical(CPDF_Stream* pOther) const |
| { |
| if (!m_pDict) |
| return pOther->m_pDict ? FALSE : TRUE; |
| |
| if (!m_pDict->Identical(pOther->m_pDict)) { |
| return FALSE; |
| } |
| if (m_dwSize != pOther->m_dwSize) { |
| return FALSE; |
| } |
| if (m_GenNum != (FX_DWORD) - 1 && pOther->m_GenNum != (FX_DWORD) - 1) { |
| if (m_pFile == pOther->m_pFile && m_pFile == NULL) { |
| return TRUE; |
| } |
| if (!m_pFile || !pOther->m_pFile) { |
| return FALSE; |
| } |
| uint8_t srcBuf[1024]; |
| uint8_t destBuf[1024]; |
| FX_DWORD size = m_dwSize; |
| FX_DWORD srcOffset = m_FileOffset; |
| FX_DWORD destOffset = pOther->m_FileOffset; |
| if (m_pFile == pOther->m_pFile && srcOffset == destOffset) { |
| return TRUE; |
| } |
| while (size > 0) { |
| FX_DWORD actualSize = size > 1024 ? 1024 : size; |
| m_pFile->ReadBlock(srcBuf, srcOffset, actualSize); |
| pOther->m_pFile->ReadBlock(destBuf, destOffset, actualSize); |
| if (FXSYS_memcmp32(srcBuf, destBuf, actualSize) != 0) { |
| return FALSE; |
| } |
| size -= actualSize; |
| srcOffset += actualSize; |
| destOffset += actualSize; |
| } |
| return TRUE; |
| } |
| if (m_GenNum != (FX_DWORD) - 1 || pOther->m_GenNum != (FX_DWORD) - 1) { |
| IFX_FileRead* pFile = NULL; |
| uint8_t* pBuf = NULL; |
| FX_DWORD offset = 0; |
| if (pOther->m_GenNum != (FX_DWORD) - 1) { |
| pFile = pOther->m_pFile; |
| pBuf = m_pDataBuf; |
| offset = pOther->m_FileOffset; |
| } else if (m_GenNum != (FX_DWORD) - 1) { |
| pFile = m_pFile; |
| pBuf = pOther->m_pDataBuf; |
| offset = m_FileOffset; |
| } |
| if (NULL == pBuf) { |
| return FALSE; |
| } |
| uint8_t srcBuf[1024]; |
| FX_DWORD size = m_dwSize; |
| while (size > 0) { |
| FX_DWORD actualSize = std::min(size, 1024U); |
| pFile->ReadBlock(srcBuf, offset, actualSize); |
| if (FXSYS_memcmp32(srcBuf, pBuf, actualSize) != 0) { |
| return FALSE; |
| } |
| pBuf += actualSize; |
| size -= actualSize; |
| offset += actualSize; |
| } |
| return TRUE; |
| } |
| return FXSYS_memcmp32(m_pDataBuf, pOther->m_pDataBuf, m_dwSize) == 0; |
| } |
| CPDF_Stream* CPDF_Stream::Clone(FX_BOOL bDirect, FPDF_LPFCloneStreamCallback lpfCallback, void* pUserData) const |
| { |
| CPDF_Dictionary *pCloneDict = (CPDF_Dictionary*)m_pDict->Clone(bDirect); |
| IFX_FileStream *pFS = NULL; |
| if (lpfCallback) { |
| pFS = lpfCallback((CPDF_Stream*)this, pUserData); |
| } |
| if (!pFS) { |
| CPDF_StreamAcc acc; |
| acc.LoadAllData(this, TRUE); |
| FX_DWORD streamSize = acc.GetSize(); |
| return new CPDF_Stream(acc.DetachData(), streamSize, pCloneDict); |
| } |
| CPDF_Stream* pObj = new CPDF_Stream(NULL, 0, NULL); |
| CPDF_StreamFilter *pSF = GetStreamFilter(TRUE); |
| if (pSF) { |
| uint8_t* pBuf = FX_Alloc(uint8_t, 4096); |
| FX_DWORD dwRead; |
| do { |
| dwRead = pSF->ReadBlock(pBuf, 4096); |
| if (dwRead) { |
| pFS->WriteBlock(pBuf, dwRead); |
| } |
| } while (dwRead == 4096); |
| pFS->Flush(); |
| FX_Free(pBuf); |
| delete pSF; |
| } |
| pObj->InitStream((IFX_FileRead*)pFS, pCloneDict); |
| return pObj; |
| } |
| extern FX_BOOL PDF_DataDecode(const uint8_t* src_buf, FX_DWORD src_size, const CPDF_Dictionary* pDict, |
| uint8_t*& dest_buf, FX_DWORD& dest_size, CFX_ByteString& ImageEncoding, |
| CPDF_Dictionary*& pImageParms, FX_DWORD estimated_size, FX_BOOL bImageAcc); |
| CPDF_StreamAcc::CPDF_StreamAcc() |
| { |
| m_bNewBuf = FALSE; |
| m_pData = NULL; |
| m_dwSize = 0; |
| m_pImageParam = NULL; |
| m_pStream = NULL; |
| m_pSrcData = NULL; |
| } |
| void CPDF_StreamAcc::LoadAllData(const CPDF_Stream* pStream, FX_BOOL bRawAccess, FX_DWORD estimated_size, |
| FX_BOOL bImageAcc) |
| { |
| if (pStream == NULL || pStream->GetType() != PDFOBJ_STREAM) { |
| return; |
| } |
| m_pStream = pStream; |
| if (pStream->IsMemoryBased() && |
| (!pStream->GetDict()->KeyExist(FX_BSTRC("Filter")) || bRawAccess)) { |
| m_dwSize = pStream->m_dwSize; |
| m_pData = (uint8_t*)pStream->m_pDataBuf; |
| return; |
| } |
| uint8_t* pSrcData; |
| FX_DWORD dwSrcSize = pStream->m_dwSize; |
| if (dwSrcSize == 0) { |
| return; |
| } |
| if (!pStream->IsMemoryBased()) { |
| pSrcData = m_pSrcData = FX_Alloc(uint8_t, dwSrcSize); |
| if (!pStream->ReadRawData(0, pSrcData, dwSrcSize)) { |
| return; |
| } |
| } else { |
| pSrcData = pStream->m_pDataBuf; |
| } |
| uint8_t* pDecryptedData; |
| FX_DWORD dwDecryptedSize; |
| if (pStream->m_pCryptoHandler) { |
| CFX_BinaryBuf dest_buf; |
| dest_buf.EstimateSize(pStream->m_pCryptoHandler->DecryptGetSize(dwSrcSize)); |
| void* context = pStream->m_pCryptoHandler->DecryptStart(pStream->GetObjNum(), pStream->m_GenNum); |
| pStream->m_pCryptoHandler->DecryptStream(context, pSrcData, dwSrcSize, dest_buf); |
| pStream->m_pCryptoHandler->DecryptFinish(context, dest_buf); |
| pDecryptedData = dest_buf.GetBuffer(); |
| dwDecryptedSize = dest_buf.GetSize(); |
| dest_buf.DetachBuffer(); |
| } else { |
| pDecryptedData = pSrcData; |
| dwDecryptedSize = dwSrcSize; |
| } |
| if (!pStream->GetDict()->KeyExist(FX_BSTRC("Filter")) || bRawAccess) { |
| m_pData = pDecryptedData; |
| m_dwSize = dwDecryptedSize; |
| } else { |
| FX_BOOL bRet = PDF_DataDecode(pDecryptedData, dwDecryptedSize, m_pStream->GetDict(), |
| m_pData, m_dwSize, m_ImageDecoder, m_pImageParam, estimated_size, bImageAcc); |
| if (!bRet) { |
| m_pData = pDecryptedData; |
| m_dwSize = dwDecryptedSize; |
| } |
| } |
| if (pSrcData != pStream->m_pDataBuf && pSrcData != m_pData) { |
| FX_Free(pSrcData); |
| } |
| if (pDecryptedData != pSrcData && pDecryptedData != m_pData) { |
| FX_Free(pDecryptedData); |
| } |
| m_pSrcData = NULL; |
| m_bNewBuf = m_pData != pStream->m_pDataBuf; |
| } |
| CPDF_StreamAcc::~CPDF_StreamAcc() |
| { |
| if (m_bNewBuf && m_pData) { |
| FX_Free(m_pData); |
| } |
| if (m_pSrcData) { |
| FX_Free(m_pSrcData); |
| } |
| } |
| const uint8_t* CPDF_StreamAcc::GetData() const |
| { |
| if (m_bNewBuf) { |
| return m_pData; |
| } |
| if (!m_pStream) { |
| return NULL; |
| } |
| return m_pStream->m_pDataBuf; |
| } |
| FX_DWORD CPDF_StreamAcc::GetSize() const |
| { |
| if (m_bNewBuf) { |
| return m_dwSize; |
| } |
| if (!m_pStream) { |
| return 0; |
| } |
| return m_pStream->m_dwSize; |
| } |
| uint8_t* CPDF_StreamAcc::DetachData() |
| { |
| if (m_bNewBuf) { |
| uint8_t* p = m_pData; |
| m_pData = NULL; |
| m_dwSize = 0; |
| return p; |
| } |
| uint8_t* p = FX_Alloc(uint8_t, m_dwSize); |
| FXSYS_memcpy32(p, m_pData, m_dwSize); |
| return p; |
| } |
| void CPDF_Reference::SetRef(CPDF_IndirectObjects* pDoc, FX_DWORD objnum) |
| { |
| m_pObjList = pDoc; |
| m_RefObjNum = objnum; |
| } |
| CPDF_IndirectObjects::CPDF_IndirectObjects(CPDF_Parser* pParser) |
| { |
| m_pParser = pParser; |
| m_IndirectObjs.InitHashTable(1013); |
| if (pParser) { |
| m_LastObjNum = m_pParser->GetLastObjNum(); |
| } else { |
| m_LastObjNum = 0; |
| } |
| } |
| CPDF_IndirectObjects::~CPDF_IndirectObjects() |
| { |
| FX_POSITION pos = m_IndirectObjs.GetStartPosition(); |
| while (pos) { |
| void* key; |
| void* value; |
| m_IndirectObjs.GetNextAssoc(pos, key, value); |
| ((CPDF_Object*)value)->Destroy(); |
| } |
| } |
| CPDF_Object* CPDF_IndirectObjects::GetIndirectObject(FX_DWORD objnum, struct PARSE_CONTEXT* pContext) |
| { |
| if (objnum == 0) { |
| return NULL; |
| } |
| void* value; |
| { |
| if (m_IndirectObjs.Lookup((void*)(uintptr_t)objnum, value)) { |
| if (((CPDF_Object*)value)->GetObjNum() == -1) { |
| return NULL; |
| } |
| return (CPDF_Object*)value; |
| } |
| } |
| CPDF_Object* pObj = NULL; |
| if (m_pParser) { |
| pObj = m_pParser->ParseIndirectObject(this, objnum, pContext); |
| } |
| if (pObj == NULL) { |
| return NULL; |
| } |
| pObj->m_ObjNum = objnum; |
| if (m_LastObjNum < objnum) { |
| m_LastObjNum = objnum; |
| } |
| if (m_IndirectObjs.Lookup((void*)(uintptr_t)objnum, value)) { |
| if (value) { |
| ((CPDF_Object *)value)->Destroy(); |
| } |
| } |
| m_IndirectObjs.SetAt((void*)(uintptr_t)objnum, pObj); |
| return pObj; |
| } |
| int CPDF_IndirectObjects::GetIndirectType(FX_DWORD objnum) |
| { |
| void* value; |
| if (m_IndirectObjs.Lookup((void*)(uintptr_t)objnum, value)) { |
| return ((CPDF_Object*)value)->GetType(); |
| } |
| if (m_pParser) { |
| PARSE_CONTEXT context; |
| FXSYS_memset32(&context, 0, sizeof(PARSE_CONTEXT)); |
| context.m_Flags = PDFPARSE_TYPEONLY; |
| return (int)(uintptr_t)m_pParser->ParseIndirectObject(this, objnum, &context); |
| } |
| return 0; |
| } |
| FX_DWORD CPDF_IndirectObjects::AddIndirectObject(CPDF_Object* pObj) |
| { |
| if (pObj->m_ObjNum) { |
| return pObj->m_ObjNum; |
| } |
| m_LastObjNum ++; |
| m_IndirectObjs.SetAt((void*)(uintptr_t)m_LastObjNum, pObj); |
| pObj->m_ObjNum = m_LastObjNum; |
| return m_LastObjNum; |
| } |
| void CPDF_IndirectObjects::ReleaseIndirectObject(FX_DWORD objnum) |
| { |
| void* value; |
| if (!m_IndirectObjs.Lookup((void*)(uintptr_t)objnum, value)) { |
| return; |
| } |
| if (((CPDF_Object*)value)->GetObjNum() == -1) { |
| return; |
| } |
| ((CPDF_Object*)value)->Destroy(); |
| m_IndirectObjs.RemoveKey((void*)(uintptr_t)objnum); |
| } |
| void CPDF_IndirectObjects::InsertIndirectObject(FX_DWORD objnum, CPDF_Object* pObj) |
| { |
| if (objnum == 0 || pObj == NULL) { |
| return; |
| } |
| void* value = NULL; |
| if (m_IndirectObjs.Lookup((void*)(uintptr_t)objnum, value)) { |
| if (value) |
| { |
| if (pObj->GetGenNum() <= ((CPDF_Object*)value)->GetGenNum()) |
| return; |
| else |
| ((CPDF_Object*)value)->Destroy(); |
| } |
| } |
| pObj->m_ObjNum = objnum; |
| m_IndirectObjs.SetAt((void*)(uintptr_t)objnum, pObj); |
| if (m_LastObjNum < objnum) { |
| m_LastObjNum = objnum; |
| } |
| } |
| FX_DWORD CPDF_IndirectObjects::GetLastObjNum() const |
| { |
| return m_LastObjNum; |
| } |
