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Edit merged annots

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This commit is contained in:
Svetlana Kulikova
2025-03-26 14:06:29 +03:00
parent eebe3f321a
commit c5e6fb69c8
4 changed files with 147 additions and 23 deletions
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163
PdfFile/PdfEditor.cpp
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@ -187,6 +187,104 @@ bool SplitSkipDict(Object* obj, CObjectsManager* pManager, int nStartRefID)
return false;
}
PdfWriter::CAnnotation* CreateAnnot(Object* oAnnot, Object* oType, PdfWriter::CXref* pXref)
{
PdfWriter::CAnnotation* pAnnot = NULL;
if (oType->isName("Text"))
pAnnot = new PdfWriter::CTextAnnotation(pXref);
else if (oType->isName("Ink"))
pAnnot = new PdfWriter::CInkAnnotation(pXref);
else if (oType->isName("Line"))
pAnnot = new PdfWriter::CLineAnnotation(pXref);
else if (oType->isName("Highlight") || oType->isName("Underline") || oType->isName("Squiggly") || oType->isName("StrikeOut"))
pAnnot = new PdfWriter::CTextMarkupAnnotation(pXref);
else if (oType->isName("Square") || oType->isName("Circle"))
pAnnot = new PdfWriter::CSquareCircleAnnotation(pXref);
else if (oType->isName("Polygon") || oType->isName("PolyLine"))
pAnnot = new PdfWriter::CPolygonLineAnnotation(pXref);
else if (oType->isName("FreeText"))
pAnnot = new PdfWriter::CFreeTextAnnotation(pXref);
else if (oType->isName("Caret"))
pAnnot = new PdfWriter::CCaretAnnotation(pXref);
else if (oType->isName("Stamp"))
pAnnot = new PdfWriter::CStampAnnotation(pXref);
else if (oType->isName("Popup"))
pAnnot = new PdfWriter::CPopupAnnotation(pXref);
else if (oType->isName("Widget"))
{
char* sName = NULL;
Object oFT;
if (oAnnot->dictLookup("FT", &oFT)->isName())
sName = oFT.getName();
if (!sName)
{
Object oParent, oParent2;
oAnnot->dictLookup("Parent", &oParent);
while (oParent.isDict())
{
if (oParent.dictLookup("FT", &oFT)->isName())
{
sName = oFT.getName();
break;
}
oFT.free();
oParent.dictLookup("Parent", &oParent2);
oParent.free();
oParent = oParent2;
}
oParent.free();
}
if (!sName)
{
oFT.free();
return new PdfWriter::CWidgetAnnotation(pXref, PdfWriter::EAnnotType::AnnotWidget);
}
if (strcmp("Btn", sName) == 0)
{
bool bPushButton = false;
oFT.free();
int nFf = 0;
if (oAnnot->dictLookup("Ff", &oFT)->isInt())
nFf = oFT.getInt();
if (!nFf)
{
Object oParent, oParent2;
oAnnot->dictLookup("Parent", &oParent);
while (oParent.isDict())
{
if (oParent.dictLookup("Ff", &oFT)->isInt())
{
nFf = oFT.getInt();
break;
}
oFT.free();
oParent.dictLookup("Parent", &oParent2);
oParent.free();
oParent = oParent2;
}
oParent.free();
}
bPushButton = (bool)((nFf >> 16) & 1);
if (bPushButton)
pAnnot = new PdfWriter::CPushButtonWidget(pXref);
else
pAnnot = new PdfWriter::CCheckBoxWidget(pXref);
}
else if (strcmp("Tx", sName) == 0)
pAnnot = new PdfWriter::CTextWidget(pXref);
else if (strcmp("Ch", sName) == 0)
pAnnot = new PdfWriter::CChoiceWidget(pXref);
else if (strcmp("Sig", sName) == 0)
pAnnot = new PdfWriter::CSignatureWidget(pXref);
else
pAnnot = new PdfWriter::CWidgetAnnotation(pXref, PdfWriter::EAnnotType::AnnotWidget);
oFT.free();
}
return pAnnot;
}
PdfWriter::CObjectBase* DictToCDictObject2(Object* obj, PdfWriter::CDocument* pDoc, XRef* xref, CObjectsManager* pManager, int nStartRefID, int nAddObjToXRef = 0)
{
PdfWriter::CObjectBase* pBase = NULL;
@ -261,7 +359,19 @@ PdfWriter::CObjectBase* DictToCDictObject2(Object* obj, PdfWriter::CDocument* pD
{
if (SplitSkipDict(obj, pManager, nStartRefID))
return NULL;
PdfWriter::CDictObject* pDict = new PdfWriter::CDictObject();
Object oType, oSubtype;
PdfWriter::CDictObject* pDict = NULL;
if (obj->dictLookup("Type", &oType)->isName("Annot") && obj->dictLookup("Subtype", &oSubtype)->isName())
{
PdfWriter::CAnnotation* pAnnot = CreateAnnot(obj, &oSubtype, NULL);
pDoc->AddAnnotation(nAddObjToXRef + nStartRefID, pAnnot);
pDict = pAnnot;
}
oType.free(); oSubtype.free();
if (!pDict)
pDict = new PdfWriter::CDictObject();
if (nAddObjToXRef > 0)
{
pDoc->AddObject(pDict);
@ -352,6 +462,27 @@ PdfWriter::CObjectBase* DictToCDictObject2(Object* obj, PdfWriter::CDocument* pD
return pBase;
}
void AddWidgetParent(PdfWriter::CDocument* pDoc, CObjectsManager* pManager, PdfWriter::CObjectBase* pObj)
{
if (pObj->GetType() != PdfWriter::object_type_DICT)
return;
PdfWriter::CDictObject* pDict = (PdfWriter::CDictObject*)pObj;
if (pDict->GetDictType() != PdfWriter::dict_type_UNKNOWN)
return;
int nID = pManager->FindObj(pObj);
if (pDoc->GetParent(nID))
return;
pDoc->AddParent(nID, pDict);
PdfWriter::CObjectBase* pObjKids = pDict->Get("Kids");
if (!pObjKids || pObjKids->GetType() != PdfWriter::object_type_ARRAY)
return;
PdfWriter::CArrayObject* pKids = (PdfWriter::CArrayObject*)pObjKids;
for (int i = 0; i < pKids->GetCount(); ++i)
AddWidgetParent(pDoc, pManager, pKids->Get(i));
}
PdfWriter::CDictObject* GetWidgetParent(PDFDoc* pdfDoc, PdfWriter::CDocument* pDoc, Object* pParentRef, int nStartRefID)
{
if (!pParentRef || !pParentRef->isRef() || !pdfDoc)
@ -1379,6 +1510,7 @@ bool CPdfEditor::SplitPages(const int* arrPageIndex, unsigned int unLength, PDFD
PDFDoc* pPDFDocument = _pDoc;
XRef* xref = pPDFDocument->getXRef();
PdfWriter::CDocument* pDoc = m_pWriter->GetDocument();
int nPagesBefore = m_pReader->GetNumPages() - pPDFDocument->getNumPages();
if (unLength == 0)
unLength = pPDFDocument->getNumPages();
@ -1394,6 +1526,7 @@ bool CPdfEditor::SplitPages(const int* arrPageIndex, unsigned int unLength, PDFD
PdfWriter::CPage* pPage = new PdfWriter::CPage(pDoc);
pDoc->AddObject(pPage);
pDoc->AddPage(pDoc->GetPagesCount(), pPage);
pDoc->AddEditPage(pPage, nPagesBefore + i);
// Получение объекта страницы
Object pageRefObj, pageObj;
@ -1573,6 +1706,7 @@ bool CPdfEditor::SplitPages(const int* arrPageIndex, unsigned int unLength, PDFD
{
pFields->Add(pObj);
m_mObjManager.IncRefCount(oRes.getRefNum() + nStartRefID);
AddWidgetParent(pDoc, &m_mObjManager, pObj);
continue;
}
}
@ -1754,23 +1888,11 @@ bool CPdfEditor::MergePages(const int* arrPageIndex, unsigned int unLength)
if (m_nMode != Mode::WriteAppend && !IncrementalUpdates())
return false;
PDFDoc* pDocument = m_pReader->GetLastPDFDocument();
int nPagesBefore = m_pReader->GetNumPages() - pDocument->getNumPages();
int nStartRefID = m_pReader->GetStartRefID(pDocument);
bool bRes = SplitPages(arrPageIndex, unLength, pDocument, nStartRefID);
if (!bRes)
return false;
// Добавление merge страниц в редактируемые
PdfWriter::CDocument* pDoc = m_pWriter->GetDocument();
Catalog* pCatalog = pDocument->getCatalog();
for (int i = 0, nPages = unLength == 0 ? pDocument->getNumPages() : unLength; i < nPages; ++i)
{
Ref* pPageRef = pCatalog->getPageRef((arrPageIndex ? arrPageIndex[i] : i) + 1);
PdfWriter::CObjectBase* pObj = m_mObjManager.GetObj(pPageRef->num + nStartRefID);
if (pObj && pObj->GetType() == PdfWriter::object_type_DICT && ((PdfWriter::CDictObject*)pObj)->GetDictType() == PdfWriter::dict_type_PAGE)
pDoc->AddEditPage((PdfWriter::CPage*)pObj, nPagesBefore + i);
}
return bRes;
}
bool CPdfEditor::DeletePage(int nPageIndex)
@ -1788,9 +1910,9 @@ bool CPdfEditor::DeletePage(int nPageIndex)
int nRefID = m_pReader->FindRefNum(nObjID, &pPDFDocument, &nStartRefID);
if (nRefID > 0)
{
XRefEntry* pEntry = pPDFDocument->getXRef()->getEntry(nRefID);
Object oRef;
// TODO узнать gen
oRef.initRef(nRefID, 0);
oRef.initRef(nRefID, pEntry->gen);
m_mObjManager.DeleteObjTree(&oRef, pPDFDocument->getXRef(), nStartRefID);
}
pPage->SetHidden();
@ -1831,10 +1953,7 @@ bool CPdfEditor::EditAnnot(int _nPageIndex, int nID)
{
PdfWriter::CObjectBase* pObj = m_mObjManager.GetObj(nID);
if (pObj)
{
pObj->SetHidden();
return true;
}
PDFDoc* pPDFDocument = NULL;
PdfReader::CPdfFontList* pFontList = NULL;
@ -2100,9 +2219,9 @@ bool CPdfEditor::DeleteAnnot(int nID, Object* oAnnots)
int nRefID = m_pReader->FindRefNum(nID, &pPDFDocument, &nStartRefID);
if (nRefID > 0)
{
XRefEntry* pEntry = pPDFDocument->getXRef()->getEntry(nRefID);
Object oRef;
// TODO узнать gen
oRef.initRef(nRefID, 0);
oRef.initRef(nRefID, pEntry->gen);
m_mObjManager.DeleteObjTree(&oRef, pPDFDocument->getXRef(), nStartRefID);
}
pObj->SetHidden();
@ -2193,9 +2312,9 @@ bool CPdfEditor::EditWidgets(IAdvancedCommand* pCommand)
if (nRefID < 0)
continue;
XRefEntry* pEntry = pPDFDocument->getXRef()->getEntry(nRefID);
Object oParentRef;
// TODO узнать gen родителя
oParentRef.initRef(nRefID, 0);
oParentRef.initRef(nRefID, pEntry->gen);
GetWidgetParent(pPDFDocument, pDoc, &oParentRef, nStartRefID);
// TODO перевыставить детей
oParentRef.free();