void CPDF_StructElementImpl::LoadKid(uint32_t PageObjNum,
CPDF_Object* pKidObj,
CPDF_StructKid* pKid) {
pKid->m_Type = CPDF_StructKid::Invalid;
if (!pKidObj)
return;
if (pKidObj->IsNumber()) {
if (m_pTree->m_pPage && m_pTree->m_pPage->GetObjNum() != PageObjNum) {
return;
}
pKid->m_Type = CPDF_StructKid::PageContent;
pKid->m_PageContent.m_ContentId = pKidObj->GetInteger();
pKid->m_PageContent.m_PageObjNum = PageObjNum;
return;
}
CPDF_Dictionary* pKidDict = pKidObj->AsDictionary();
if (!pKidDict)
return;
if (CPDF_Reference* pRef = ToReference(pKidDict->GetObjectBy("Pg")))
PageObjNum = pRef->GetRefObjNum();
CFX_ByteString type = pKidDict->GetStringBy("Type");
if (type == "MCR") {
if (m_pTree->m_pPage && m_pTree->m_pPage->GetObjNum() != PageObjNum) {
return;
}
pKid->m_Type = CPDF_StructKid::StreamContent;
if (CPDF_Reference* pRef = ToReference(pKidDict->GetObjectBy("Stm"))) {
pKid->m_StreamContent.m_RefObjNum = pRef->GetRefObjNum();
} else {
pKid->m_StreamContent.m_RefObjNum = 0;
}
pKid->m_StreamContent.m_PageObjNum = PageObjNum;
pKid->m_StreamContent.m_ContentId = pKidDict->GetIntegerBy("MCID");
} else if (type == "OBJR") {
if (m_pTree->m_pPage && m_pTree->m_pPage->GetObjNum() != PageObjNum) {
return;
}
pKid->m_Type = CPDF_StructKid::Object;
if (CPDF_Reference* pObj = ToReference(pKidDict->GetObjectBy("Obj"))) {
pKid->m_Object.m_RefObjNum = pObj->GetRefObjNum();
} else {
pKid->m_Object.m_RefObjNum = 0;
}
pKid->m_Object.m_PageObjNum = PageObjNum;
} else {
pKid->m_Type = CPDF_StructKid::Element;
pKid->m_Element.m_pDict = pKidDict;
if (!m_pTree->m_pPage) {
pKid->m_Element.m_pElement =
new CPDF_StructElementImpl(m_pTree, this, pKidDict);
} else {
pKid->m_Element.m_pElement = nullptr;
}
}
}
void CPDF_StructElement::LoadKid(uint32_t PageObjNum,
const CPDF_Object* pKidObj,
CPDF_StructKid* pKid) {
pKid->m_Type = CPDF_StructKid::Invalid;
if (!pKidObj)
return;
if (pKidObj->IsNumber()) {
if (m_pTree->GetPage() && m_pTree->GetPage()->GetObjNum() != PageObjNum)
return;
pKid->m_Type = CPDF_StructKid::PageContent;
pKid->m_ContentId = pKidObj->GetInteger();
pKid->m_PageObjNum = PageObjNum;
return;
}
const CPDF_Dictionary* pKidDict = pKidObj->AsDictionary();
if (!pKidDict)
return;
if (const CPDF_Reference* pRef = ToReference(pKidDict->GetObjectFor("Pg")))
PageObjNum = pRef->GetRefObjNum();
ByteString type = pKidDict->GetStringFor("Type");
if ((type == "MCR" || type == "OBJR") && m_pTree->GetPage() &&
m_pTree->GetPage()->GetObjNum() != PageObjNum) {
return;
}
if (type == "MCR") {
pKid->m_Type = CPDF_StructKid::StreamContent;
const CPDF_Reference* pRef = ToReference(pKidDict->GetObjectFor("Stm"));
pKid->m_RefObjNum = pRef ? pRef->GetRefObjNum() : 0;
pKid->m_PageObjNum = PageObjNum;
pKid->m_ContentId = pKidDict->GetIntegerFor("MCID");
return;
}
if (type == "OBJR") {
pKid->m_Type = CPDF_StructKid::Object;
const CPDF_Reference* pObj = ToReference(pKidDict->GetObjectFor("Obj"));
pKid->m_RefObjNum = pObj ? pObj->GetRefObjNum() : 0;
pKid->m_PageObjNum = PageObjNum;
return;
}
pKid->m_Type = CPDF_StructKid::Element;
pKid->m_pDict = pKidDict;
if (m_pTree->GetPage()) {
pKid->m_pElement = nullptr;
return;
}
pKid->m_pElement =
pdfium::MakeRetain<CPDF_StructElement>(m_pTree.Get(), this, pKidDict);
}
CFX_WideString CPDF_Dictionary::GetUnicodeText(const CFX_ByteStringC& key,
CFX_CharMap* pCharMap) const {
CPDF_Object* p = GetElement(key);
if (CPDF_Reference* pRef = ToReference(p))
p = pRef->GetDirect();
return p ? p->GetUnicodeText(pCharMap) : CFX_WideString();
}
bool CPDF_DataAvail::GetPageKids(CPDF_Parser* pParser, CPDF_Object* pPages) {
if (!pParser) {
m_docStatus = PDF_DATAAVAIL_ERROR;
return false;
}
CPDF_Dictionary* pDict = pPages->GetDict();
CPDF_Object* pKids = pDict ? pDict->GetObjectFor("Kids") : nullptr;
if (!pKids)
return true;
switch (pKids->GetType()) {
case CPDF_Object::REFERENCE:
m_PageObjList.Add(pKids->AsReference()->GetRefObjNum());
break;
case CPDF_Object::ARRAY: {
CPDF_Array* pKidsArray = pKids->AsArray();
for (size_t i = 0; i < pKidsArray->GetCount(); ++i) {
if (CPDF_Reference* pRef = ToReference(pKidsArray->GetObjectAt(i)))
m_PageObjList.Add(pRef->GetRefObjNum());
}
} break;
default:
m_docStatus = PDF_DATAAVAIL_ERROR;
return false;
}
return true;
}
FX_BOOL CPDF_Document::IsContentUsedElsewhere(FX_DWORD objnum,
CPDF_Dictionary* pThisPageDict) {
for (int i = 0; i < m_PageList.GetSize(); i++) {
CPDF_Dictionary* pPageDict = GetPage(i);
if (pPageDict == pThisPageDict) {
continue;
}
CPDF_Object* pContents =
pPageDict ? pPageDict->GetElement("Contents") : NULL;
if (!pContents) {
continue;
}
if (pContents->GetDirectType() == PDFOBJ_ARRAY) {
CPDF_Array* pArray = pContents->GetDirect()->AsArray();
for (FX_DWORD j = 0; j < pArray->GetCount(); j++) {
CPDF_Reference* pRef = ToReference(pArray->GetElement(j));
if (pRef && pRef->GetRefObjNum() == objnum)
return TRUE;
}
} else if (pContents->GetObjNum() == objnum) {
return TRUE;
}
}
return FALSE;
}
FX_BOOL CPDF_StructTreeImpl::AddTopLevelNode(CPDF_Dictionary* pDict,
CPDF_StructElementImpl* pElement) {
CPDF_Object* pObj = m_pTreeRoot->GetDirectObjectBy("K");
if (!pObj)
return FALSE;
if (pObj->IsDictionary()) {
if (pObj->GetObjNum() != pDict->GetObjNum())
return FALSE;
m_Kids[0].Reset(pElement);
}
if (CPDF_Array* pTopKids = pObj->AsArray()) {
bool bSave = false;
for (size_t i = 0; i < pTopKids->GetCount(); i++) {
CPDF_Reference* pKidRef = ToReference(pTopKids->GetObjectAt(i));
if (pKidRef && pKidRef->GetRefObjNum() == pDict->GetObjNum()) {
m_Kids[i].Reset(pElement);
bSave = true;
}
}
if (!bSave)
return FALSE;
}
return TRUE;
}
bool CPDF_DataAvail::CheckTrailer(DownloadHints* pHints) {
int32_t iTrailerSize =
(int32_t)(m_Pos + 512 > m_dwFileLen ? m_dwFileLen - m_Pos : 512);
if (m_pFileAvail->IsDataAvail(m_Pos, iTrailerSize)) {
int32_t iSize = (int32_t)(m_Pos + iTrailerSize - m_dwTrailerOffset);
CFX_BinaryBuf buf(iSize);
uint8_t* pBuf = buf.GetBuffer();
if (!pBuf) {
m_docStatus = PDF_DATAAVAIL_ERROR;
return false;
}
if (!m_pFileRead->ReadBlock(pBuf, m_dwTrailerOffset, iSize))
return false;
ScopedFileStream file(FX_CreateMemoryStream(pBuf, (size_t)iSize, false));
m_syntaxParser.InitParser(file.get(), 0);
std::unique_ptr<CPDF_Object> pTrailer(
m_syntaxParser.GetObject(nullptr, 0, 0, true));
if (!pTrailer) {
m_Pos += m_syntaxParser.SavePos();
pHints->AddSegment(m_Pos, iTrailerSize);
return false;
}
if (!pTrailer->IsDictionary())
return false;
CPDF_Dictionary* pTrailerDict = pTrailer->GetDict();
CPDF_Object* pEncrypt = pTrailerDict->GetObjectFor("Encrypt");
if (ToReference(pEncrypt)) {
m_docStatus = PDF_DATAAVAIL_LOADALLFILE;
return true;
}
uint32_t xrefpos = GetDirectInteger(pTrailerDict, "Prev");
if (xrefpos) {
m_dwPrevXRefOffset = GetDirectInteger(pTrailerDict, "XRefStm");
if (m_dwPrevXRefOffset) {
m_docStatus = PDF_DATAAVAIL_LOADALLFILE;
} else {
m_dwPrevXRefOffset = xrefpos;
if (m_dwPrevXRefOffset >= m_dwFileLen) {
m_docStatus = PDF_DATAAVAIL_LOADALLFILE;
} else {
SetStartOffset(m_dwPrevXRefOffset);
m_docStatus = PDF_DATAAVAIL_TRAILER_APPEND;
}
}
return true;
}
m_dwPrevXRefOffset = 0;
m_docStatus = PDF_DATAAVAIL_TRAILER_APPEND;
return true;
}
pHints->AddSegment(m_Pos, iTrailerSize);
return false;
}
bool CPDF_DataAvail::CheckRoot(DownloadHints* pHints) {
bool bExist = false;
m_pRoot = GetObject(m_dwRootObjNum, pHints, &bExist);
if (!bExist) {
m_docStatus = PDF_DATAAVAIL_LOADALLFILE;
return true;
}
if (!m_pRoot) {
if (m_docStatus == PDF_DATAAVAIL_ERROR) {
m_docStatus = PDF_DATAAVAIL_LOADALLFILE;
return true;
}
return false;
}
CPDF_Dictionary* pDict = m_pRoot->GetDict();
if (!pDict) {
m_docStatus = PDF_DATAAVAIL_ERROR;
return false;
}
CPDF_Reference* pRef = ToReference(pDict->GetObjectFor("Pages"));
if (!pRef) {
m_docStatus = PDF_DATAAVAIL_ERROR;
return false;
}
m_PagesObjNum = pRef->GetRefObjNum();
CPDF_Reference* pAcroFormRef =
ToReference(m_pRoot->GetDict()->GetObjectFor("AcroForm"));
if (pAcroFormRef) {
m_bHaveAcroForm = true;
m_dwAcroFormObjNum = pAcroFormRef->GetRefObjNum();
}
if (m_dwInfoObjNum) {
m_docStatus = PDF_DATAAVAIL_INFO;
} else {
m_docStatus =
m_bHaveAcroForm ? PDF_DATAAVAIL_ACROFORM : PDF_DATAAVAIL_PAGETREE;
}
return true;
}
int CPDF_Document::_FindPageIndex(CPDF_Dictionary* pNode,
FX_DWORD& skip_count,
FX_DWORD objnum,
int& index,
int level) {
if (pNode->KeyExist("Kids")) {
CPDF_Array* pKidList = pNode->GetArray("Kids");
if (!pKidList) {
return -1;
}
if (level >= FX_MAX_PAGE_LEVEL) {
return -1;
}
FX_DWORD count = pNode->GetInteger("Count");
if (count <= skip_count) {
skip_count -= count;
index += count;
return -1;
}
if (count && count == pKidList->GetCount()) {
for (FX_DWORD i = 0; i < count; i++) {
if (CPDF_Reference* pKid = ToReference(pKidList->GetElement(i))) {
if (pKid->GetRefObjNum() == objnum) {
m_PageList.SetAt(index + i, objnum);
return index + i;
}
}
}
}
for (FX_DWORD i = 0; i < pKidList->GetCount(); i++) {
CPDF_Dictionary* pKid = pKidList->GetDict(i);
if (!pKid) {
continue;
}
if (pKid == pNode) {
continue;
}
int found_index =
_FindPageIndex(pKid, skip_count, objnum, index, level + 1);
if (found_index >= 0) {
return found_index;
}
}
} else {
if (objnum == pNode->GetObjNum()) {
return index;
}
if (skip_count) {
skip_count--;
}
index++;
}
return -1;
}
bool CPDF_DataAvail::CheckPage(DownloadHints* pHints) {
uint32_t iPageObjs = m_PageObjList.GetSize();
CFX_ArrayTemplate<uint32_t> UnavailObjList;
for (uint32_t i = 0; i < iPageObjs; ++i) {
uint32_t dwPageObjNum = m_PageObjList.GetAt(i);
bool bExist = false;
std::unique_ptr<CPDF_Object> pObj =
GetObject(dwPageObjNum, pHints, &bExist);
if (!pObj) {
if (bExist)
UnavailObjList.Add(dwPageObjNum);
continue;
}
CPDF_Array* pArray = ToArray(pObj.get());
if (pArray) {
for (const auto& pArrayObj : *pArray) {
if (CPDF_Reference* pRef = ToReference(pArrayObj.get()))
UnavailObjList.Add(pRef->GetRefObjNum());
}
}
if (!pObj->IsDictionary())
continue;
CFX_ByteString type = pObj->GetDict()->GetStringFor("Type");
if (type == "Pages") {
m_PagesArray.push_back(std::move(pObj));
continue;
}
}
m_PageObjList.RemoveAll();
if (UnavailObjList.GetSize()) {
m_PageObjList.Append(UnavailObjList);
return false;
}
uint32_t iPages = m_PagesArray.size();
for (uint32_t i = 0; i < iPages; i++) {
std::unique_ptr<CPDF_Object> pPages = std::move(m_PagesArray[i]);
if (pPages && !GetPageKids(m_pCurrentParser, pPages.get())) {
m_PagesArray.clear();
m_docStatus = PDF_DATAAVAIL_ERROR;
return false;
}
}
m_PagesArray.clear();
if (!m_PageObjList.GetSize())
m_docStatus = PDF_DATAAVAIL_DONE;
return true;
}
int CPDF_Document::FindPageIndex(CPDF_Dictionary* pNode,
uint32_t& skip_count,
uint32_t objnum,
int& index,
int level) {
if (!pNode->KeyExist("Kids")) {
if (objnum == pNode->GetObjNum())
return index;
if (skip_count)
skip_count--;
index++;
return -1;
}
CPDF_Array* pKidList = pNode->GetArrayFor("Kids");
if (!pKidList)
return -1;
if (level >= FX_MAX_PAGE_LEVEL)
return -1;
size_t count = pNode->GetIntegerFor("Count");
if (count <= skip_count) {
skip_count -= count;
index += count;
return -1;
}
if (count && count == pKidList->GetCount()) {
for (size_t i = 0; i < count; i++) {
if (CPDF_Reference* pKid = ToReference(pKidList->GetObjectAt(i))) {
if (pKid->GetRefObjNum() == objnum) {
m_PageList.SetAt(index + i, objnum);
return static_cast<int>(index + i);
}
}
}
}
for (size_t i = 0; i < pKidList->GetCount(); i++) {
CPDF_Dictionary* pKid = pKidList->GetDictAt(i);
if (!pKid || pKid == pNode)
continue;
int found_index = FindPageIndex(pKid, skip_count, objnum, index, level + 1);
if (found_index >= 0)
return found_index;
}
return -1;
}
bool CPDF_DataAvail::PreparePageItem() {
CPDF_Dictionary* pRoot = m_pDocument->GetRoot();
CPDF_Reference* pRef =
ToReference(pRoot ? pRoot->GetObjectFor("Pages") : nullptr);
if (!pRef) {
m_docStatus = PDF_DATAAVAIL_ERROR;
return false;
}
m_PagesObjNum = pRef->GetRefObjNum();
m_pCurrentParser = m_pDocument->GetParser();
m_docStatus = PDF_DATAAVAIL_PAGETREE;
return true;
}
void CPDF_StreamContentParser::Handle_ExecuteXObject() {
CFX_ByteString name = GetString(0);
if (name == m_LastImageName && m_pLastImage && m_pLastImage->GetStream() &&
m_pLastImage->GetStream()->GetObjNum()) {
AddImage(nullptr, m_pLastImage, FALSE);
return;
}
if (m_Options.m_bTextOnly) {
if (!m_pResources)
return;
CPDF_Dictionary* pList = m_pResources->GetDict("XObject");
if (!pList && m_pPageResources && m_pResources != m_pPageResources)
pList = m_pPageResources->GetDict("XObject");
if (!pList)
return;
CPDF_Reference* pRes = ToReference(pList->GetElement(name));
if (!pRes)
return;
FX_BOOL bForm;
if (m_pDocument->IsFormStream(pRes->GetRefObjNum(), bForm) && !bForm)
return;
}
CPDF_Stream* pXObject = ToStream(FindResourceObj("XObject", name));
if (!pXObject) {
m_bResourceMissing = TRUE;
return;
}
CFX_ByteStringC type = pXObject->GetDict()
? pXObject->GetDict()->GetConstString("Subtype")
: CFX_ByteStringC();
if (type == "Image") {
if (m_Options.m_bTextOnly) {
return;
}
CPDF_ImageObject* pObj = AddImage(pXObject, NULL, FALSE);
m_LastImageName = name;
m_pLastImage = pObj->m_pImage;
if (!m_pObjectList->m_bHasImageMask)
m_pObjectList->m_bHasImageMask = m_pLastImage->IsMask();
} else if (type == "Form") {
AddForm(pXObject);
} else {
return;
}
}
void CPDF_StructElementImpl::LoadKids(CPDF_Dictionary* pDict) {
CPDF_Object* pObj = pDict->GetObjectBy("Pg");
uint32_t PageObjNum = 0;
if (CPDF_Reference* pRef = ToReference(pObj))
PageObjNum = pRef->GetRefObjNum();
CPDF_Object* pKids = pDict->GetDirectObjectBy("K");
if (!pKids)
return;
m_Kids.clear();
if (CPDF_Array* pArray = pKids->AsArray()) {
m_Kids.resize(pArray->GetCount());
for (uint32_t i = 0; i < pArray->GetCount(); i++) {
CPDF_Object* pKid = pArray->GetDirectObjectAt(i);
LoadKid(PageObjNum, pKid, &m_Kids[i]);
}
} else {
m_Kids.resize(1);
LoadKid(PageObjNum, pKids, &m_Kids[0]);
}
}
bool CPDF_DataAvail::CheckArrayPageNode(uint32_t dwPageNo,
PageNode* pPageNode,
DownloadHints* pHints) {
bool bExist = false;
std::unique_ptr<CPDF_Object> pPages = GetObject(dwPageNo, pHints, &bExist);
if (!bExist) {
m_docStatus = PDF_DATAAVAIL_ERROR;
return false;
}
if (!pPages) {
if (m_docStatus == PDF_DATAAVAIL_ERROR) {
m_docStatus = PDF_DATAAVAIL_ERROR;
return false;
}
return false;
}
CPDF_Array* pArray = pPages->AsArray();
if (!pArray) {
m_docStatus = PDF_DATAAVAIL_ERROR;
return false;
}
pPageNode->m_type = PDF_PAGENODE_PAGES;
for (size_t i = 0; i < pArray->GetCount(); ++i) {
CPDF_Reference* pKid = ToReference(pArray->GetObjectAt(i));
if (!pKid)
continue;
PageNode* pNode = new PageNode();
pPageNode->m_childNode.Add(pNode);
pNode->m_dwPageNo = pKid->GetRefObjNum();
}
return true;
}
bool CPDF_DataAvail::CheckUnkownPageNode(uint32_t dwPageNo,
PageNode* pPageNode,
DownloadHints* pHints) {
bool bExist = false;
std::unique_ptr<CPDF_Object> pPage = GetObject(dwPageNo, pHints, &bExist);
if (!bExist) {
m_docStatus = PDF_DATAAVAIL_ERROR;
return false;
}
if (!pPage) {
if (m_docStatus == PDF_DATAAVAIL_ERROR)
m_docStatus = PDF_DATAAVAIL_ERROR;
return false;
}
if (pPage->IsArray()) {
pPageNode->m_dwPageNo = dwPageNo;
pPageNode->m_type = PDF_PAGENODE_ARRAY;
return true;
}
if (!pPage->IsDictionary()) {
m_docStatus = PDF_DATAAVAIL_ERROR;
return false;
}
pPageNode->m_dwPageNo = dwPageNo;
CPDF_Dictionary* pDict = pPage->GetDict();
CFX_ByteString type = pDict->GetStringFor("Type");
if (type == "Pages") {
pPageNode->m_type = PDF_PAGENODE_PAGES;
CPDF_Object* pKids = pDict->GetObjectFor("Kids");
if (!pKids) {
m_docStatus = PDF_DATAAVAIL_PAGE;
return true;
}
switch (pKids->GetType()) {
case CPDF_Object::REFERENCE: {
CPDF_Reference* pKid = pKids->AsReference();
PageNode* pNode = new PageNode();
pPageNode->m_childNode.Add(pNode);
pNode->m_dwPageNo = pKid->GetRefObjNum();
} break;
case CPDF_Object::ARRAY: {
CPDF_Array* pKidsArray = pKids->AsArray();
for (size_t i = 0; i < pKidsArray->GetCount(); ++i) {
CPDF_Reference* pKid = ToReference(pKidsArray->GetObjectAt(i));
if (!pKid)
continue;
PageNode* pNode = new PageNode();
pPageNode->m_childNode.Add(pNode);
pNode->m_dwPageNo = pKid->GetRefObjNum();
}
} break;
default:
break;
}
} else if (type == "Page") {
pPageNode->m_type = PDF_PAGENODE_PAGE;
} else {
m_docStatus = PDF_DATAAVAIL_ERROR;
return false;
}
return true;
}
CPDF_FormField* CPDF_InterForm::AddTerminalField(CPDF_Dictionary* pFieldDict) {
if (!pFieldDict->KeyExist("FT")) {
// Key "FT" is required for terminal fields, it is also inheritable.
CPDF_Dictionary* pParentDict = pFieldDict->GetDictFor("Parent");
if (!pParentDict || !pParentDict->KeyExist("FT"))
return nullptr;
}
CPDF_Dictionary* pDict = pFieldDict;
CFX_WideString csWName = FPDF_GetFullName(pFieldDict);
if (csWName.IsEmpty())
return nullptr;
CPDF_FormField* pField = nullptr;
pField = m_pFieldTree->GetField(csWName);
if (!pField) {
CPDF_Dictionary* pParent = pFieldDict;
if (!pFieldDict->KeyExist("T") &&
pFieldDict->GetStringFor("Subtype") == "Widget") {
pParent = pFieldDict->GetDictFor("Parent");
if (!pParent)
pParent = pFieldDict;
}
if (pParent && pParent != pFieldDict && !pParent->KeyExist("FT")) {
if (pFieldDict->KeyExist("FT")) {
CPDF_Object* pFTValue = pFieldDict->GetDirectObjectFor("FT");
if (pFTValue)
pParent->SetFor("FT", pFTValue->Clone());
}
if (pFieldDict->KeyExist("Ff")) {
CPDF_Object* pFfValue = pFieldDict->GetDirectObjectFor("Ff");
if (pFfValue)
pParent->SetFor("Ff", pFfValue->Clone());
}
}
pField = new CPDF_FormField(this, pParent);
CPDF_Object* pTObj = pDict->GetObjectFor("T");
if (ToReference(pTObj)) {
std::unique_ptr<CPDF_Object> pClone = pTObj->CloneDirectObject();
if (pClone)
pDict->SetFor("T", std::move(pClone));
else
pDict->SetNewFor<CPDF_Name>("T", "");
}
m_pFieldTree->SetField(csWName, pField);
}
CPDF_Array* pKids = pFieldDict->GetArrayFor("Kids");
if (pKids) {
for (size_t i = 0; i < pKids->GetCount(); i++) {
CPDF_Dictionary* pKid = pKids->GetDictAt(i);
if (!pKid)
continue;
if (pKid->GetStringFor("Subtype") != "Widget")
continue;
AddControl(pField, pKid);
}
} else {
if (pFieldDict->GetStringFor("Subtype") == "Widget")
AddControl(pField, pFieldDict);
}
return pField;
}
DLLEXPORT void STDCALL FPDFPage_InsertClipPath(FPDF_PAGE page,
FPDF_CLIPPATH clipPath) {
CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
if (!pPage)
return;
CPDF_Dictionary* pPageDic = pPage->m_pFormDict;
CPDF_Object* pContentObj =
pPageDic ? pPageDic->GetElement("Contents") : nullptr;
if (!pContentObj)
pContentObj = pPageDic ? pPageDic->GetArrayBy("Contents") : nullptr;
if (!pContentObj)
return;
CFX_ByteTextBuf strClip;
CPDF_ClipPath* pClipPath = (CPDF_ClipPath*)clipPath;
FX_DWORD i;
for (i = 0; i < pClipPath->GetPathCount(); i++) {
CPDF_Path path = pClipPath->GetPath(i);
int iClipType = pClipPath->GetClipType(i);
if (path.GetPointCount() == 0) {
// Empty clipping (totally clipped out)
strClip << "0 0 m W n ";
} else {
OutputPath(strClip, path);
if (iClipType == FXFILL_WINDING)
strClip << "W n\n";
else
strClip << "W* n\n";
}
}
CPDF_Dictionary* pDic = new CPDF_Dictionary;
CPDF_Stream* pStream = new CPDF_Stream(nullptr, 0, pDic);
pStream->SetData(strClip.GetBuffer(), strClip.GetSize(), FALSE, FALSE);
CPDF_Document* pDoc = pPage->m_pDocument;
if (!pDoc)
return;
pDoc->AddIndirectObject(pStream);
CPDF_Array* pContentArray = nullptr;
if (CPDF_Array* pArray = ToArray(pContentObj)) {
pContentArray = pArray;
CPDF_Reference* pRef = new CPDF_Reference(pDoc, pStream->GetObjNum());
pContentArray->InsertAt(0, pRef);
} else if (CPDF_Reference* pReference = ToReference(pContentObj)) {
CPDF_Object* pDirectObj = pReference->GetDirect();
if (pDirectObj) {
if (CPDF_Array* pArray = pDirectObj->AsArray()) {
pContentArray = pArray;
CPDF_Reference* pRef = new CPDF_Reference(pDoc, pStream->GetObjNum());
pContentArray->InsertAt(0, pRef);
} else if (pDirectObj->IsStream()) {
pContentArray = new CPDF_Array();
pContentArray->AddReference(pDoc, pStream->GetObjNum());
pContentArray->AddReference(pDoc, pDirectObj->GetObjNum());
pPageDic->SetAtReference("Contents", pDoc,
pDoc->AddIndirectObject(pContentArray));
}
}
}
}
DLLEXPORT void STDCALL FPDFPage_InsertClipPath(FPDF_PAGE page,
FPDF_CLIPPATH clipPath) {
CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
if (!pPage)
return;
CPDF_Dictionary* pPageDic = pPage->m_pFormDict;
CPDF_Object* pContentObj =
pPageDic ? pPageDic->GetObjectFor("Contents") : nullptr;
if (!pContentObj)
pContentObj = pPageDic ? pPageDic->GetArrayFor("Contents") : nullptr;
if (!pContentObj)
return;
CFX_ByteTextBuf strClip;
CPDF_ClipPath* pClipPath = (CPDF_ClipPath*)clipPath;
uint32_t i;
for (i = 0; i < pClipPath->GetPathCount(); i++) {
CPDF_Path path = pClipPath->GetPath(i);
int iClipType = pClipPath->GetClipType(i);
if (path.GetPoints().empty()) {
// Empty clipping (totally clipped out)
strClip << "0 0 m W n ";
} else {
OutputPath(strClip, path);
if (iClipType == FXFILL_WINDING)
strClip << "W n\n";
else
strClip << "W* n\n";
}
}
CPDF_Document* pDoc = pPage->m_pDocument;
if (!pDoc)
return;
CPDF_Stream* pStream = pDoc->NewIndirect<CPDF_Stream>(
nullptr, 0,
pdfium::MakeUnique<CPDF_Dictionary>(pDoc->GetByteStringPool()));
pStream->SetData(strClip.GetBuffer(), strClip.GetSize());
CPDF_Array* pArray = ToArray(pContentObj);
if (pArray) {
pArray->InsertNewAt<CPDF_Reference>(0, pDoc, pStream->GetObjNum());
return;
}
CPDF_Reference* pReference = ToReference(pContentObj);
if (!pReference)
return;
CPDF_Object* pDirectObj = pReference->GetDirect();
if (!pDirectObj)
return;
CPDF_Array* pObjArray = pDirectObj->AsArray();
if (pObjArray) {
pObjArray->InsertNewAt<CPDF_Reference>(0, pDoc, pStream->GetObjNum());
return;
}
if (pDirectObj->IsStream()) {
CPDF_Array* pContentArray = pDoc->NewIndirect<CPDF_Array>();
pContentArray->AddNew<CPDF_Reference>(pDoc, pStream->GetObjNum());
pContentArray->AddNew<CPDF_Reference>(pDoc, pDirectObj->GetObjNum());
pPageDic->SetNewFor<CPDF_Reference>("Contents", pDoc,
pContentArray->GetObjNum());
}
}
CPDF_FormField* CPDF_InterForm::AddTerminalField(CPDF_Dictionary* pFieldDict) {
if (!pFieldDict->KeyExist(FX_BSTRC("T"))) {
return NULL;
}
CPDF_Dictionary* pDict = pFieldDict;
CFX_WideString csWName = GetFullName(pFieldDict);
if (csWName.IsEmpty()) {
return NULL;
}
CPDF_FormField* pField = NULL;
pField = m_pFieldTree->GetField(csWName);
if (pField == NULL) {
CPDF_Dictionary* pParent = pFieldDict;
if (!pFieldDict->KeyExist(FX_BSTRC("T")) &&
pFieldDict->GetString(FX_BSTRC("Subtype")) == FX_BSTRC("Widget")) {
pParent = pFieldDict->GetDict(FX_BSTRC("Parent"));
if (!pParent) {
pParent = pFieldDict;
}
}
if (pParent && pParent != pFieldDict &&
!pParent->KeyExist(FX_BSTRC("FT"))) {
if (pFieldDict->KeyExist(FX_BSTRC("FT"))) {
CPDF_Object* pFTValue = pFieldDict->GetElementValue(FX_BSTRC("FT"));
if (pFTValue) {
pParent->SetAt(FX_BSTRC("FT"), pFTValue->Clone());
}
}
if (pFieldDict->KeyExist(FX_BSTRC("Ff"))) {
CPDF_Object* pFfValue = pFieldDict->GetElementValue(FX_BSTRC("Ff"));
if (pFfValue) {
pParent->SetAt(FX_BSTRC("Ff"), pFfValue->Clone());
}
}
}
pField = new CPDF_FormField(this, pParent);
CPDF_Object* pTObj = pDict->GetElement("T");
if (ToReference(pTObj)) {
CPDF_Object* pClone = pTObj->Clone(TRUE);
if (pClone)
pDict->SetAt("T", pClone);
else
pDict->SetAtName("T", "");
}
m_pFieldTree->SetField(csWName, pField);
}
CPDF_Array* pKids = pFieldDict->GetArray("Kids");
if (pKids == NULL) {
if (pFieldDict->GetString("Subtype") == "Widget") {
AddControl(pField, pFieldDict);
}
} else {
for (FX_DWORD i = 0; i < pKids->GetCount(); i++) {
CPDF_Dictionary* pKid = pKids->GetDict(i);
if (pKid == NULL) {
continue;
}
if (pKid->GetString("Subtype") != "Widget") {
continue;
}
AddControl(pField, pKid);
}
}
return pField;
}
DLLEXPORT FPDF_BOOL STDCALL FPDFPage_TransFormWithClip(FPDF_PAGE page,
FS_MATRIX* matrix,
FS_RECTF* clipRect) {
CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
if (!pPage)
return FALSE;
CFX_ByteTextBuf textBuf;
textBuf << "q ";
CFX_FloatRect rect(clipRect->left, clipRect->bottom, clipRect->right,
clipRect->top);
rect.Normalize();
CFX_ByteString bsClipping;
bsClipping.Format("%f %f %f %f re W* n ", rect.left, rect.bottom,
rect.Width(), rect.Height());
textBuf << bsClipping;
CFX_ByteString bsMatix;
bsMatix.Format("%f %f %f %f %f %f cm ", matrix->a, matrix->b, matrix->c,
matrix->d, matrix->e, matrix->f);
textBuf << bsMatix;
CPDF_Dictionary* pPageDic = pPage->m_pFormDict;
CPDF_Object* pContentObj =
pPageDic ? pPageDic->GetElement("Contents") : nullptr;
if (!pContentObj)
pContentObj = pPageDic ? pPageDic->GetArrayBy("Contents") : nullptr;
if (!pContentObj)
return FALSE;
CPDF_Dictionary* pDic = new CPDF_Dictionary;
CPDF_Stream* pStream = new CPDF_Stream(nullptr, 0, pDic);
pStream->SetData(textBuf.GetBuffer(), textBuf.GetSize(), FALSE, FALSE);
CPDF_Document* pDoc = pPage->m_pDocument;
if (!pDoc)
return FALSE;
pDoc->AddIndirectObject(pStream);
pDic = new CPDF_Dictionary;
CPDF_Stream* pEndStream = new CPDF_Stream(nullptr, 0, pDic);
pEndStream->SetData((const uint8_t*)" Q", 2, FALSE, FALSE);
pDoc->AddIndirectObject(pEndStream);
CPDF_Array* pContentArray = nullptr;
if (CPDF_Array* pArray = ToArray(pContentObj)) {
pContentArray = pArray;
CPDF_Reference* pRef = new CPDF_Reference(pDoc, pStream->GetObjNum());
pContentArray->InsertAt(0, pRef);
pContentArray->AddReference(pDoc, pEndStream);
} else if (CPDF_Reference* pReference = ToReference(pContentObj)) {
CPDF_Object* pDirectObj = pReference->GetDirect();
if (pDirectObj) {
if (CPDF_Array* pArray = pDirectObj->AsArray()) {
pContentArray = pArray;
CPDF_Reference* pRef = new CPDF_Reference(pDoc, pStream->GetObjNum());
pContentArray->InsertAt(0, pRef);
pContentArray->AddReference(pDoc, pEndStream);
} else if (pDirectObj->IsStream()) {
pContentArray = new CPDF_Array();
pContentArray->AddReference(pDoc, pStream->GetObjNum());
pContentArray->AddReference(pDoc, pDirectObj->GetObjNum());
pContentArray->AddReference(pDoc, pEndStream);
pPageDic->SetAtReference("Contents", pDoc,
pDoc->AddIndirectObject(pContentArray));
}
}
}
// Need to transform the patterns as well.
CPDF_Dictionary* pRes = pPageDic->GetDictBy("Resources");
if (pRes) {
CPDF_Dictionary* pPattenDict = pRes->GetDictBy("Pattern");
if (pPattenDict) {
for (const auto& it : *pPattenDict) {
CPDF_Object* pObj = it.second;
if (pObj->IsReference())
pObj = pObj->GetDirect();
CPDF_Dictionary* pDict = nullptr;
if (pObj->IsDictionary())
pDict = pObj->AsDictionary();
else if (CPDF_Stream* pStream = pObj->AsStream())
pDict = pStream->GetDict();
else
continue;
CFX_Matrix m = pDict->GetMatrixBy("Matrix");
CFX_Matrix t = *(CFX_Matrix*)matrix;
m.Concat(t);
pDict->SetAtMatrix("Matrix", m);
}
}
}
return TRUE;
}
CPDF_FormField* CPDF_InterForm::AddTerminalField(CPDF_Dictionary* pFieldDict) {
if (!pFieldDict->KeyExist("T"))
return nullptr;
CPDF_Dictionary* pDict = pFieldDict;
CFX_WideString csWName = FPDF_GetFullName(pFieldDict);
if (csWName.IsEmpty())
return nullptr;
CPDF_FormField* pField = nullptr;
pField = m_pFieldTree->GetField(csWName);
if (!pField) {
CPDF_Dictionary* pParent = pFieldDict;
if (!pFieldDict->KeyExist("T") &&
pFieldDict->GetStringBy("Subtype") == "Widget") {
pParent = pFieldDict->GetDictBy("Parent");
if (!pParent)
pParent = pFieldDict;
}
if (pParent && pParent != pFieldDict && !pParent->KeyExist("FT")) {
if (pFieldDict->KeyExist("FT")) {
CPDF_Object* pFTValue = pFieldDict->GetDirectObjectBy("FT");
if (pFTValue)
pParent->SetAt("FT", pFTValue->Clone());
}
if (pFieldDict->KeyExist("Ff")) {
CPDF_Object* pFfValue = pFieldDict->GetDirectObjectBy("Ff");
if (pFfValue)
pParent->SetAt("Ff", pFfValue->Clone());
}
}
pField = new CPDF_FormField(this, pParent);
CPDF_Object* pTObj = pDict->GetObjectBy("T");
if (ToReference(pTObj)) {
CPDF_Object* pClone = pTObj->CloneDirectObject();
if (pClone)
pDict->SetAt("T", pClone);
else
pDict->SetAtName("T", "");
}
m_pFieldTree->SetField(csWName, pField);
}
CPDF_Array* pKids = pFieldDict->GetArrayBy("Kids");
if (!pKids) {
if (pFieldDict->GetStringBy("Subtype") == "Widget")
AddControl(pField, pFieldDict);
} else {
for (size_t i = 0; i < pKids->GetCount(); i++) {
CPDF_Dictionary* pKid = pKids->GetDictAt(i);
if (!pKid)
continue;
if (pKid->GetStringBy("Subtype") != "Widget")
continue;
AddControl(pField, pKid);
}
}
return pField;
}
