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Create ValidMetaData

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This commit is contained in:
Svetlana Kulikova
2024-02-16 10:47:08 +03:00
parent b9a11bc30d
commit b7bc83f37d
5 changed files with 44 additions and 0 deletions
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6
PdfFile/PdfFile.cpp
View File

@ -1525,6 +1525,12 @@ int CPdfFile::GetMaxRefID()
return m_pInternal->pReader->GetMaxRefID();
}
bool CPdfFile::ValidMetaData()
{
if (!m_pInternal->pReader)
return false;
return m_pInternal->pReader->ValidMetaData();
}
void CPdfFile::DrawPageOnRenderer(IRenderer* pRenderer, int nPageIndex, bool* pBreak)
{
if (!m_pInternal->pReader)

1
PdfFile/PdfFile.h
View File

@ -128,6 +128,7 @@ public:
virtual std::wstring GetInfo();
virtual BYTE* GetStructure();
virtual BYTE* GetLinks(int nPageIndex);
bool ValidMetaData();
int GetRotate(int nPageIndex);
int GetMaxRefID();
BYTE* GetWidgets();

27
PdfFile/PdfReader.cpp
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@ -461,6 +461,33 @@ int CPdfReader::GetMaxRefID()
return 0;
return m_pPDFDocument->getXRef()->getNumObjects();
}
bool CPdfReader::ValidMetaData()
{
if (!m_pPDFDocument)
return false;
XRef* xref = m_pPDFDocument->getXRef();
Object oMeta, oType, oID;
if (!xref->fetch(1, 0, &oMeta)->isStream() || !oMeta.streamGetDict()->lookup("Type", &oType)->isName("MetaOForm") || !oMeta.streamGetDict()->lookup("ID", &oID)->isString())
{
oMeta.free(); oType.free(); oID.free();
return false;
}
oMeta.free(); oType.free();
Object oTID, oID2;
Object* pTrailerDict = xref->getTrailerDict();
if (!pTrailerDict || !pTrailerDict->dictLookup("ID", &oTID)->isArray() || !oTID.arrayGet(1, &oID2)->isString())
{
oID.free(); oTID.free(); oID2.free();
return false;
}
oTID.free();
bool bRes = oID2.getString()->cmp(oID.getString()) == 0;
oID.free(); oID2.free();
return bRes;
}
void CPdfReader::DrawPageOnRenderer(IRenderer* pRenderer, int _nPageIndex, bool* pbBreak)
{
if (m_pPDFDocument && pRenderer)

1
PdfFile/PdfReader.h
View File

@ -61,6 +61,7 @@ public:
int GetError();
int GetRotate(int nPageIndex);
int GetMaxRefID();
bool ValidMetaData();
void GetPageInfo(int nPageIndex, double* pdWidth, double* pdHeight, double* pdDpiX, double* pdDpiY);
void DrawPageOnRenderer(IRenderer* pRenderer, int nPageIndex, bool* pBreak);
std::wstring GetInfo();

9
PdfFile/test/test.cpp
View File

@ -161,6 +161,15 @@ TEST_F(CPdfFileTest, GetMetaData)
RELEASEARRAYOBJECTS(pMetaData);
}
TEST_F(CPdfFileTest, ValidMetaData)
{
GTEST_SKIP();
LoadFromFile();
std::cout << "ValidMetaData " << (pdfFile->ValidMetaData() ? "true" : "false") << std::endl;
}
TEST_F(CPdfFileTest, PdfBinToPng)
{
GTEST_SKIP();