void CPDF_FormControl::DrawControl(CFX_RenderDevice* pDevice,
CFX_Matrix* pMatrix,
CPDF_Page* pPage,
CPDF_Annot::AppearanceMode mode,
const CPDF_RenderOptions* pOptions) {
if (m_pWidgetDict->GetIntegerBy("F") & ANNOTFLAG_HIDDEN)
return;
CPDF_Stream* pStream = FPDFDOC_GetAnnotAP(m_pWidgetDict, mode);
if (!pStream)
return;
CFX_FloatRect form_bbox = pStream->GetDict()->GetRectBy("BBox");
CFX_Matrix form_matrix = pStream->GetDict()->GetMatrixBy("Matrix");
form_matrix.TransformRect(form_bbox);
CFX_FloatRect arect = m_pWidgetDict->GetRectBy("Rect");
CFX_Matrix matrix;
matrix.MatchRect(arect, form_bbox);
matrix.Concat(*pMatrix);
CPDF_Form form(m_pField->m_pForm->m_pDocument,
m_pField->m_pForm->m_pFormDict->GetDictBy("DR"), pStream);
form.ParseContent(nullptr, nullptr, nullptr);
CPDF_RenderContext context(pPage);
context.AppendLayer(&form, &matrix);
context.Render(pDevice, pOptions, nullptr);
}
CPDF_Stream* CPDF_Stream::Clone(FX_BOOL bDirect, FPDF_LPFCloneStreamCallback lpfCallback, FX_LPVOID 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) {
FX_LPBYTE pBuf = FX_Alloc(FX_BYTE, 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;
}
void CPDF_FormControl::DrawControl(CFX_RenderDevice* pDevice,
CFX_AffineMatrix* pMatrix,
CPDF_Page* pPage,
CPDF_Annot::AppearanceMode mode,
const CPDF_RenderOptions* pOptions) {
if (m_pWidgetDict->GetInteger("F") & ANNOTFLAG_HIDDEN) {
return;
}
CPDF_Stream* pStream = FPDFDOC_GetAnnotAP(m_pWidgetDict, mode);
if (pStream == NULL) {
return;
}
CFX_FloatRect form_bbox = pStream->GetDict()->GetRect("BBox");
CFX_AffineMatrix form_matrix = pStream->GetDict()->GetMatrix("Matrix");
form_matrix.TransformRect(form_bbox);
CFX_FloatRect arect = m_pWidgetDict->GetRect("Rect");
CFX_AffineMatrix matrix;
matrix.MatchRect(arect, form_bbox);
matrix.Concat(*pMatrix);
CPDF_Form form(m_pField->m_pForm->m_pDocument,
m_pField->m_pForm->m_pFormDict->GetDict("DR"), pStream);
form.ParseContent(NULL, NULL, NULL, NULL);
CPDF_RenderContext context;
context.Create(pPage);
context.DrawObjectList(pDevice, &form, &matrix, pOptions);
}
void CBA_FontMap::AddFontToAnnotDict(CPDF_Font* pFont, const CFX_ByteString& sAlias)
{
if (!pFont) return;
ASSERT(m_pAnnotDict != NULL);
ASSERT(m_pDocument != NULL);
CPDF_Dictionary* pAPDict = m_pAnnotDict->GetDict("AP");
if (pAPDict == NULL)
{
pAPDict = new CPDF_Dictionary;
m_pAnnotDict->SetAt("AP", pAPDict);
}
//to avoid checkbox and radiobutton
CPDF_Object* pObject = pAPDict->GetElement(m_sAPType);
if (pObject && pObject->GetType() == PDFOBJ_DICTIONARY)
return;
CPDF_Stream* pStream = pAPDict->GetStream(m_sAPType);
if (pStream == NULL)
{
pStream = new CPDF_Stream(NULL, 0, NULL);
FX_INT32 objnum = m_pDocument->AddIndirectObject(pStream);
pAPDict->SetAtReference(m_sAPType, m_pDocument, objnum);
}
CPDF_Dictionary * pStreamDict = pStream->GetDict();
if (!pStreamDict)
{
pStreamDict = new CPDF_Dictionary;
pStream->InitStream(NULL, 0, pStreamDict);
}
if (pStreamDict)
{
CPDF_Dictionary* pStreamResList = pStreamDict->GetDict("Resources");
if (!pStreamResList)
{
pStreamResList = new CPDF_Dictionary();
pStreamDict->SetAt("Resources", pStreamResList);
}
if (pStreamResList)
{
CPDF_Dictionary* pStreamResFontList = pStreamResList->GetDict("Font");
if (!pStreamResFontList)
{
pStreamResFontList = new CPDF_Dictionary;
FX_INT32 objnum = m_pDocument->AddIndirectObject(pStreamResFontList);
pStreamResList->SetAtReference("Font", m_pDocument, objnum);
}
if (!pStreamResFontList->KeyExist(sAlias))
pStreamResFontList->SetAtReference(sAlias, m_pDocument, pFont->GetFontDict());
}
}
}
FX_BOOL CPDF_SampledFunc::v_Init(CPDF_Object* pObj) {
if (pObj->GetType() != PDFOBJ_STREAM) {
return FALSE;
}
CPDF_Stream* pStream = (CPDF_Stream*)pObj;
CPDF_Dictionary* pDict = pStream->GetDict();
CPDF_Array* pSize = pDict->GetArray(FX_BSTRC("Size"));
CPDF_Array* pEncode = pDict->GetArray(FX_BSTRC("Encode"));
CPDF_Array* pDecode = pDict->GetArray(FX_BSTRC("Decode"));
m_nBitsPerSample = pDict->GetInteger(FX_BSTRC("BitsPerSample"));
if (m_nBitsPerSample > 32) {
return FALSE;
}
m_SampleMax = 0xffffffff >> (32 - m_nBitsPerSample);
m_pSampleStream = new CPDF_StreamAcc;
m_pSampleStream->LoadAllData(pStream, FALSE);
m_pEncodeInfo = FX_Alloc(SampleEncodeInfo, m_nInputs);
FX_SAFE_DWORD nTotalSampleBits = 1;
for (int i = 0; i < m_nInputs; i++) {
m_pEncodeInfo[i].sizes = pSize ? pSize->GetInteger(i) : 0;
if (!pSize && i == 0) {
m_pEncodeInfo[i].sizes = pDict->GetInteger(FX_BSTRC("Size"));
}
nTotalSampleBits *= m_pEncodeInfo[i].sizes;
if (pEncode) {
m_pEncodeInfo[i].encode_min = pEncode->GetFloat(i * 2);
m_pEncodeInfo[i].encode_max = pEncode->GetFloat(i * 2 + 1);
} else {
m_pEncodeInfo[i].encode_min = 0;
if (m_pEncodeInfo[i].sizes == 1) {
m_pEncodeInfo[i].encode_max = 1;
} else {
m_pEncodeInfo[i].encode_max = (FX_FLOAT)m_pEncodeInfo[i].sizes - 1;
}
}
}
nTotalSampleBits *= m_nBitsPerSample;
nTotalSampleBits *= m_nOutputs;
FX_SAFE_DWORD nTotalSampleBytes = nTotalSampleBits;
nTotalSampleBytes += 7;
nTotalSampleBytes /= 8;
if (!nTotalSampleBytes.IsValid() || nTotalSampleBytes.ValueOrDie() == 0 ||
nTotalSampleBytes.ValueOrDie() > m_pSampleStream->GetSize()) {
return FALSE;
}
m_pDecodeInfo = FX_Alloc(SampleDecodeInfo, m_nOutputs);
for (int i = 0; i < m_nOutputs; i++) {
if (pDecode) {
m_pDecodeInfo[i].decode_min = pDecode->GetFloat(2 * i);
m_pDecodeInfo[i].decode_max = pDecode->GetFloat(2 * i + 1);
} else {
m_pDecodeInfo[i].decode_min = m_pRanges[i * 2];
m_pDecodeInfo[i].decode_max = m_pRanges[i * 2 + 1];
}
}
return TRUE;
}
FX_BOOL CPDF_PageOrganizer::UpdateReference(CPDF_Object* pObj,
CPDF_Document* pDoc,
ObjectNumberMap* pObjNumberMap) {
switch (pObj->GetType()) {
case CPDF_Object::REFERENCE: {
CPDF_Reference* pReference = pObj->AsReference();
uint32_t newobjnum = GetNewObjId(pDoc, pObjNumberMap, pReference);
if (newobjnum == 0)
return FALSE;
pReference->SetRef(pDoc, newobjnum);
break;
}
case CPDF_Object::DICTIONARY: {
CPDF_Dictionary* pDict = pObj->AsDictionary();
auto it = pDict->begin();
while (it != pDict->end()) {
const CFX_ByteString& key = it->first;
CPDF_Object* pNextObj = it->second;
++it;
if (key == "Parent" || key == "Prev" || key == "First")
continue;
if (!pNextObj)
return FALSE;
if (!UpdateReference(pNextObj, pDoc, pObjNumberMap))
pDict->RemoveFor(key);
}
break;
}
case CPDF_Object::ARRAY: {
CPDF_Array* pArray = pObj->AsArray();
for (size_t i = 0; i < pArray->GetCount(); ++i) {
CPDF_Object* pNextObj = pArray->GetObjectAt(i);
if (!pNextObj)
return FALSE;
if (!UpdateReference(pNextObj, pDoc, pObjNumberMap))
return FALSE;
}
break;
}
case CPDF_Object::STREAM: {
CPDF_Stream* pStream = pObj->AsStream();
CPDF_Dictionary* pDict = pStream->GetDict();
if (pDict) {
if (!UpdateReference(pDict, pDoc, pObjNumberMap))
return FALSE;
} else {
return FALSE;
}
break;
}
default:
break;
}
return TRUE;
}
void CPDFSDK_BAAnnot::WriteAppearance(const CFX_ByteString& sAPType,
const CPDF_Rect& rcBBox,
const CFX_Matrix& matrix,
const CFX_ByteString& sContents,
const CFX_ByteString& sAPState) {
CPDF_Dictionary* pAPDict = m_pAnnot->GetAnnotDict()->GetDictBy("AP");
if (!pAPDict) {
pAPDict = new CPDF_Dictionary;
m_pAnnot->GetAnnotDict()->SetAt("AP", pAPDict);
}
CPDF_Stream* pStream = nullptr;
CPDF_Dictionary* pParentDict = nullptr;
if (sAPState.IsEmpty()) {
pParentDict = pAPDict;
pStream = pAPDict->GetStreamBy(sAPType);
} else {
CPDF_Dictionary* pAPTypeDict = pAPDict->GetDictBy(sAPType);
if (!pAPTypeDict) {
pAPTypeDict = new CPDF_Dictionary;
pAPDict->SetAt(sAPType, pAPTypeDict);
}
pParentDict = pAPTypeDict;
pStream = pAPTypeDict->GetStreamBy(sAPState);
}
if (!pStream) {
pStream = new CPDF_Stream(nullptr, 0, nullptr);
CPDF_Document* pDoc = m_pPageView->GetPDFDocument();
int32_t objnum = pDoc->AddIndirectObject(pStream);
pParentDict->SetAtReference(sAPType, pDoc, objnum);
}
CPDF_Dictionary* pStreamDict = pStream->GetDict();
if (!pStreamDict) {
pStreamDict = new CPDF_Dictionary;
pStreamDict->SetAtName("Type", "XObject");
pStreamDict->SetAtName("Subtype", "Form");
pStreamDict->SetAtInteger("FormType", 1);
pStream->InitStream(nullptr, 0, pStreamDict);
}
if (pStreamDict) {
pStreamDict->SetAtMatrix("Matrix", matrix);
pStreamDict->SetAtRect("BBox", rcBBox);
}
pStream->SetData((uint8_t*)sContents.c_str(), sContents.GetLength(), FALSE,
FALSE);
}
FX_BOOL CPDF_SampledFunc::v_Init(CPDF_Object* pObj) {
CPDF_Stream* pStream = pObj->AsStream();
if (!pStream)
return false;
CPDF_Dictionary* pDict = pStream->GetDict();
CPDF_Array* pSize = pDict->GetArrayBy("Size");
CPDF_Array* pEncode = pDict->GetArrayBy("Encode");
CPDF_Array* pDecode = pDict->GetArrayBy("Decode");
m_nBitsPerSample = pDict->GetIntegerBy("BitsPerSample");
if (!IsValidBitsPerSample(m_nBitsPerSample))
return FALSE;
m_SampleMax = 0xffffffff >> (32 - m_nBitsPerSample);
m_pSampleStream.reset(new CPDF_StreamAcc);
m_pSampleStream->LoadAllData(pStream, FALSE);
FX_SAFE_UINT32 nTotalSampleBits = 1;
m_EncodeInfo.resize(m_nInputs);
for (uint32_t i = 0; i < m_nInputs; i++) {
m_EncodeInfo[i].sizes = pSize ? pSize->GetIntegerAt(i) : 0;
if (!pSize && i == 0)
m_EncodeInfo[i].sizes = pDict->GetIntegerBy("Size");
nTotalSampleBits *= m_EncodeInfo[i].sizes;
if (pEncode) {
m_EncodeInfo[i].encode_min = pEncode->GetFloatAt(i * 2);
m_EncodeInfo[i].encode_max = pEncode->GetFloatAt(i * 2 + 1);
} else {
m_EncodeInfo[i].encode_min = 0;
m_EncodeInfo[i].encode_max =
m_EncodeInfo[i].sizes == 1 ? 1 : (FX_FLOAT)m_EncodeInfo[i].sizes - 1;
}
}
nTotalSampleBits *= m_nBitsPerSample;
nTotalSampleBits *= m_nOutputs;
FX_SAFE_UINT32 nTotalSampleBytes = nTotalSampleBits;
nTotalSampleBytes += 7;
nTotalSampleBytes /= 8;
if (!nTotalSampleBytes.IsValid() || nTotalSampleBytes.ValueOrDie() == 0 ||
nTotalSampleBytes.ValueOrDie() > m_pSampleStream->GetSize()) {
return FALSE;
}
m_DecodeInfo.resize(m_nOutputs);
for (uint32_t i = 0; i < m_nOutputs; i++) {
if (pDecode) {
m_DecodeInfo[i].decode_min = pDecode->GetFloatAt(2 * i);
m_DecodeInfo[i].decode_max = pDecode->GetFloatAt(2 * i + 1);
} else {
m_DecodeInfo[i].decode_min = m_pRanges[i * 2];
m_DecodeInfo[i].decode_max = m_pRanges[i * 2 + 1];
}
}
return TRUE;
}
FX_BOOL CPDF_Document::IsFormStream(FX_DWORD objnum, FX_BOOL& bForm) const {
auto it = m_IndirectObjs.find(objnum);
if (it != m_IndirectObjs.end()) {
CPDF_Stream* pStream = it->second->AsStream();
bForm = pStream && pStream->GetDict()->GetString("Subtype") == "Form";
return TRUE;
}
if (!m_pParser) {
bForm = FALSE;
return TRUE;
}
return m_pParser->IsFormStream(objnum, bForm);
}
void CBA_FontMap::AddFontToAnnotDict(CPDF_Font* pFont,
const CFX_ByteString& sAlias) {
if (!pFont)
return;
CPDF_Dictionary* pAPDict = m_pAnnotDict->GetDictBy("AP");
if (!pAPDict) {
pAPDict = new CPDF_Dictionary;
m_pAnnotDict->SetAt("AP", pAPDict);
}
// to avoid checkbox and radiobutton
CPDF_Object* pObject = pAPDict->GetObjectBy(m_sAPType);
if (ToDictionary(pObject))
return;
CPDF_Stream* pStream = pAPDict->GetStreamBy(m_sAPType);
if (!pStream) {
pStream = new CPDF_Stream(nullptr, 0, nullptr);
int32_t objnum = m_pDocument->AddIndirectObject(pStream);
pAPDict->SetAtReference(m_sAPType, m_pDocument, objnum);
}
CPDF_Dictionary* pStreamDict = pStream->GetDict();
if (!pStreamDict) {
pStreamDict = new CPDF_Dictionary;
pStream->InitStream(nullptr, 0, pStreamDict);
}
if (pStreamDict) {
CPDF_Dictionary* pStreamResList = pStreamDict->GetDictBy("Resources");
if (!pStreamResList) {
pStreamResList = new CPDF_Dictionary();
pStreamDict->SetAt("Resources", pStreamResList);
}
if (pStreamResList) {
CPDF_Dictionary* pStreamResFontList = pStreamResList->GetDictBy("Font");
if (!pStreamResFontList) {
pStreamResFontList = new CPDF_Dictionary;
int32_t objnum = m_pDocument->AddIndirectObject(pStreamResFontList);
pStreamResList->SetAtReference("Font", m_pDocument, objnum);
}
if (!pStreamResFontList->KeyExist(sAlias))
pStreamResFontList->SetAtReference(sAlias, m_pDocument,
pFont->GetFontDict());
}
}
}
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_PageContentGenerator::ProcessImage(CFX_ByteTextBuf& buf,
CPDF_ImageObject* pImageObj) {
if ((pImageObj->m_Matrix.a == 0 && pImageObj->m_Matrix.b == 0) ||
(pImageObj->m_Matrix.c == 0 && pImageObj->m_Matrix.d == 0)) {
return;
}
buf << "q " << pImageObj->m_Matrix << " cm ";
CPDF_Image* pImage = pImageObj->GetImage();
if (!pImage->IsInline()) {
CPDF_Stream* pStream = pImage->GetStream();
uint32_t dwSavedObjNum = pStream->GetObjNum();
CFX_ByteString name = RealizeResource(pStream, "XObject");
if (dwSavedObjNum == 0) {
pImageObj->SetUnownedImage(m_pDocument->GetPageData()->GetImage(pStream));
}
buf << "/" << PDF_NameEncode(name) << " Do Q\n";
}
}
FPDF_EXPORT void FPDF_CALLCONV FPDFPage_InsertClipPath(FPDF_PAGE page,
FPDF_CLIPPATH clipPath) {
CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
if (!pPage)
return;
CPDF_Dictionary* pPageDict = pPage->GetDict();
CPDF_Object* pContentObj = GetPageContent(pPageDict);
if (!pContentObj)
return;
std::ostringstream strClip;
CPDF_ClipPath* pClipPath = CPDFClipPathFromFPDFClipPath(clipPath);
for (size_t i = 0; i < pClipPath->GetPathCount(); ++i) {
CPDF_Path path = pClipPath->GetPath(i);
if (path.GetPoints().empty()) {
// Empty clipping (totally clipped out)
strClip << "0 0 m W n ";
} else {
OutputPath(strClip, path);
if (pClipPath->GetClipType(i) == FXFILL_WINDING)
strClip << "W n\n";
else
strClip << "W* n\n";
}
}
CPDF_Document* pDoc = pPage->GetDocument();
if (!pDoc)
return;
CPDF_Stream* pStream =
pDoc->NewIndirect<CPDF_Stream>(nullptr, 0, pDoc->New<CPDF_Dictionary>());
pStream->SetDataFromStringstream(&strClip);
if (CPDF_Array* pArray = ToArray(pContentObj)) {
pArray->InsertAt(0, pStream->MakeReference(pDoc));
} else if (pContentObj->IsStream() && !pContentObj->IsInline()) {
CPDF_Array* pContentArray = pDoc->NewIndirect<CPDF_Array>();
pContentArray->Add(pStream->MakeReference(pDoc));
pContentArray->Add(pContentObj->MakeReference(pDoc));
pPageDict->SetFor(pdfium::page_object::kContents,
pContentArray->MakeReference(pDoc));
}
}
void CPDF_PageContentGenerate::ProcessForm(CFX_ByteTextBuf& buf,
const uint8_t* data,
FX_DWORD size,
CFX_Matrix& matrix) {
if (!data || !size) {
return;
}
CPDF_Stream* pStream = new CPDF_Stream(NULL, 0, NULL);
CPDF_Dictionary* pFormDict = CPDF_Dictionary::Create();
pFormDict->SetAtName("Type", "XObject");
pFormDict->SetAtName("Subtype", "Form");
CFX_FloatRect bbox = m_pPage->GetPageBBox();
matrix.TransformRect(bbox);
pFormDict->SetAtRect("BBox", bbox);
pStream->InitStream((uint8_t*)data, size, pFormDict);
buf << "q " << matrix << " cm ";
CFX_ByteString name = RealizeResource(pStream, "XObject");
buf << "/" << PDF_NameEncode(name) << " Do Q\n";
}
static CPDF_Stream* GetFormStream(CPDF_Document* pDoc, CPDF_Object* pResObj)
{
if (pResObj->GetType() != PDFOBJ_REFERENCE) {
return NULL;
}
CPDF_Reference* pRef = (CPDF_Reference*)pResObj;
FX_BOOL bForm;
if (pDoc->IsFormStream(pRef->GetRefObjNum(), bForm) && !bForm) {
return NULL;
}
pResObj = pRef->GetDirect();
if (pResObj->GetType() != PDFOBJ_STREAM) {
return NULL;
}
CPDF_Stream* pXObject = (CPDF_Stream*)pResObj;
if (pXObject->GetDict()->GetString(FX_BSTRC("Subtype")) != FX_BSTRC("Form")) {
return NULL;
}
return pXObject;
}
void CPDF_PageContentGenerate::GenerateContent() {
CFX_ByteTextBuf buf;
CPDF_Dictionary* pPageDict = m_pPage->m_pFormDict;
for (int i = 0; i < m_pageObjects.GetSize(); ++i) {
CPDF_PageObject* pPageObj = (CPDF_PageObject*)m_pageObjects[i];
if (!pPageObj || pPageObj->m_Type != PDFPAGE_IMAGE) {
continue;
}
ProcessImage(buf, (CPDF_ImageObject*)pPageObj);
}
CPDF_Object* pContent =
pPageDict ? pPageDict->GetElementValue("Contents") : NULL;
if (pContent != NULL) {
pPageDict->RemoveAt("Contents");
}
CPDF_Stream* pStream = new CPDF_Stream(NULL, 0, NULL);
pStream->SetData(buf.GetBuffer(), buf.GetLength(), FALSE, FALSE);
m_pDocument->AddIndirectObject(pStream);
pPageDict->SetAtReference("Contents", m_pDocument, pStream->GetObjNum());
}
void CPDF_PageContentGenerator::GenerateContent() {
CFX_ByteTextBuf buf;
CPDF_Dictionary* pPageDict = m_pPage->m_pFormDict;
for (int i = 0; i < m_pageObjects.GetSize(); ++i) {
CPDF_PageObject* pPageObj = m_pageObjects[i];
if (!pPageObj || !pPageObj->IsImage()) {
continue;
}
ProcessImage(buf, pPageObj->AsImage());
}
CPDF_Object* pContent =
pPageDict ? pPageDict->GetDirectObjectFor("Contents") : nullptr;
if (pContent)
pPageDict->RemoveFor("Contents");
CPDF_Stream* pStream = new CPDF_Stream;
pStream->SetData(buf.GetBuffer(), buf.GetLength());
pPageDict->SetReferenceFor("Contents", m_pDocument,
m_pDocument->AddIndirectObject(pStream));
}
void CPDF_PageContentGenerator::ProcessForm(CFX_ByteTextBuf& buf,
const uint8_t* data,
uint32_t size,
CFX_Matrix& matrix) {
if (!data || !size)
return;
CPDF_Dictionary* pFormDict =
new CPDF_Dictionary(m_pDocument->GetByteStringPool());
pFormDict->SetNameFor("Type", "XObject");
pFormDict->SetNameFor("Subtype", "Form");
CFX_FloatRect bbox = m_pPage->GetPageBBox();
matrix.TransformRect(bbox);
pFormDict->SetRectFor("BBox", bbox);
CPDF_Stream* pStream = new CPDF_Stream;
pStream->InitStream(data, size, pFormDict);
buf << "q " << matrix << " cm ";
CFX_ByteString name = RealizeResource(pStream, "XObject");
buf << "/" << PDF_NameEncode(name) << " Do Q\n";
}
FX_BOOL CPDF_Function::Init(CPDF_Object* pObj) {
CPDF_Stream* pStream = pObj->AsStream();
CPDF_Dictionary* pDict = pStream ? pStream->GetDict() : pObj->AsDictionary();
CPDF_Array* pDomains = pDict->GetArrayBy("Domain");
if (!pDomains)
return FALSE;
m_nInputs = pDomains->GetCount() / 2;
if (m_nInputs == 0)
return FALSE;
m_pDomains = FX_Alloc2D(FX_FLOAT, m_nInputs, 2);
for (uint32_t i = 0; i < m_nInputs * 2; i++) {
m_pDomains[i] = pDomains->GetFloatAt(i);
}
CPDF_Array* pRanges = pDict->GetArrayBy("Range");
m_nOutputs = 0;
if (pRanges) {
m_nOutputs = pRanges->GetCount() / 2;
m_pRanges = FX_Alloc2D(FX_FLOAT, m_nOutputs, 2);
for (uint32_t i = 0; i < m_nOutputs * 2; i++)
m_pRanges[i] = pRanges->GetFloatAt(i);
}
uint32_t old_outputs = m_nOutputs;
if (!v_Init(pObj))
return FALSE;
if (m_pRanges && m_nOutputs > old_outputs) {
m_pRanges = FX_Realloc(FX_FLOAT, m_pRanges, m_nOutputs * 2);
if (m_pRanges) {
FXSYS_memset(m_pRanges + (old_outputs * 2), 0,
sizeof(FX_FLOAT) * (m_nOutputs - old_outputs) * 2);
}
}
return TRUE;
}
void CPDF_StreamContentParser::Handle_BeginImage()
{
FX_FILESIZE savePos = m_pSyntax->GetPos();
CPDF_Dictionary* pDict = CPDF_Dictionary::Create();
while (1) {
CPDF_StreamParser::SyntaxType type = m_pSyntax->ParseNextElement();
if (type == CPDF_StreamParser::Keyword) {
CFX_ByteString bsKeyword(m_pSyntax->GetWordBuf(), m_pSyntax->GetWordSize());
if (bsKeyword != FX_BSTRC("ID")) {
m_pSyntax->SetPos(savePos);
pDict->Release();
return;
}
}
if (type != CPDF_StreamParser::Name) {
break;
}
CFX_ByteString key((const FX_CHAR*)m_pSyntax->GetWordBuf() + 1, m_pSyntax->GetWordSize() - 1);
CPDF_Object* pObj = m_pSyntax->ReadNextObject();
if (!key.IsEmpty()) {
pDict->SetAt(key, pObj, m_pDocument);
} else if (pObj) {
pObj->Release();
}
}
_PDF_ReplaceAbbr(pDict);
CPDF_Object* pCSObj = NULL;
if (pDict->KeyExist(FX_BSTRC("ColorSpace"))) {
pCSObj = pDict->GetElementValue(FX_BSTRC("ColorSpace"));
if (pCSObj->GetType() == PDFOBJ_NAME) {
CFX_ByteString name = pCSObj->GetString();
if (name != FX_BSTRC("DeviceRGB") && name != FX_BSTRC("DeviceGray") && name != FX_BSTRC("DeviceCMYK")) {
pCSObj = FindResourceObj(FX_BSTRC("ColorSpace"), name);
if (pCSObj && !pCSObj->GetObjNum()) {
pCSObj = pCSObj->Clone();
pDict->SetAt(FX_BSTRC("ColorSpace"), pCSObj, m_pDocument);
}
}
}
}
CPDF_Stream* pStream = m_pSyntax->ReadInlineStream(m_pDocument, pDict, pCSObj, m_Options.m_bDecodeInlineImage);
while (1) {
CPDF_StreamParser::SyntaxType type = m_pSyntax->ParseNextElement();
if (type == CPDF_StreamParser::EndOfData) {
break;
}
if (type != CPDF_StreamParser::Keyword) {
continue;
}
if (m_pSyntax->GetWordSize() == 2 && m_pSyntax->GetWordBuf()[0] == 'E' &&
m_pSyntax->GetWordBuf()[1] == 'I') {
break;
}
}
if (m_Options.m_bTextOnly) {
if (pStream) {
pStream->Release();
} else {
pDict->Release();
}
return;
}
pDict->SetAtName(FX_BSTRC("Subtype"), FX_BSTRC("Image"));
CPDF_ImageObject *pImgObj = AddImage(pStream, NULL, TRUE);
if (!pImgObj) {
if (pStream) {
pStream->Release();
} else {
pDict->Release();
}
}
}
FX_BOOL CPDF_PageOrganizer::UpdateReference(CPDF_Object* pObj,
CPDF_Document* pDoc,
ObjectNumberMap* pObjNumberMap) {
switch (pObj->GetType()) {
case PDFOBJ_REFERENCE: {
CPDF_Reference* pReference = pObj->AsReference();
FX_DWORD newobjnum = GetNewObjId(pDoc, pObjNumberMap, pReference);
if (newobjnum == 0)
return FALSE;
pReference->SetRef(pDoc, newobjnum);
break;
}
case PDFOBJ_DICTIONARY: {
CPDF_Dictionary* pDict = pObj->AsDictionary();
FX_POSITION pos = pDict->GetStartPos();
while (pos) {
CFX_ByteString key("");
CPDF_Object* pNextObj = pDict->GetNextElement(pos, key);
if (!FXSYS_strcmp(key, "Parent") || !FXSYS_strcmp(key, "Prev") ||
!FXSYS_strcmp(key, "First")) {
continue;
}
if (pNextObj) {
if (!UpdateReference(pNextObj, pDoc, pObjNumberMap))
pDict->RemoveAt(key);
} else {
return FALSE;
}
}
break;
}
case PDFOBJ_ARRAY: {
CPDF_Array* pArray = pObj->AsArray();
FX_DWORD count = pArray->GetCount();
for (FX_DWORD i = 0; i < count; ++i) {
CPDF_Object* pNextObj = pArray->GetElement(i);
if (!pNextObj)
return FALSE;
if (!UpdateReference(pNextObj, pDoc, pObjNumberMap))
return FALSE;
}
break;
}
case PDFOBJ_STREAM: {
CPDF_Stream* pStream = pObj->AsStream();
CPDF_Dictionary* pDict = pStream->GetDict();
if (pDict) {
if (!UpdateReference(pDict, pDoc, pObjNumberMap))
return FALSE;
} else {
return FALSE;
}
break;
}
default:
break;
}
return TRUE;
}
FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV
FPDFPage_TransFormWithClip(FPDF_PAGE page,
const FS_MATRIX* matrix,
const FS_RECTF* clipRect) {
if (!matrix && !clipRect)
return false;
CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
if (!pPage)
return false;
std::ostringstream textBuf;
textBuf << "q ";
if (clipRect) {
CFX_FloatRect rect = CFXFloatRectFromFSRECTF(*clipRect);
rect.Normalize();
textBuf << ByteString::Format("%f %f %f %f re W* n ", rect.left,
rect.bottom, rect.Width(), rect.Height());
}
if (matrix) {
textBuf << ByteString::Format("%f %f %f %f %f %f cm ", matrix->a, matrix->b,
matrix->c, matrix->d, matrix->e, matrix->f);
}
CPDF_Dictionary* pPageDict = pPage->GetDict();
CPDF_Object* pContentObj = GetPageContent(pPageDict);
if (!pContentObj)
return false;
CPDF_Document* pDoc = pPage->GetDocument();
if (!pDoc)
return false;
CPDF_Stream* pStream =
pDoc->NewIndirect<CPDF_Stream>(nullptr, 0, pDoc->New<CPDF_Dictionary>());
pStream->SetDataFromStringstream(&textBuf);
CPDF_Stream* pEndStream =
pDoc->NewIndirect<CPDF_Stream>(nullptr, 0, pDoc->New<CPDF_Dictionary>());
pEndStream->SetData(ByteStringView(" Q").span());
if (CPDF_Array* pContentArray = ToArray(pContentObj)) {
pContentArray->InsertAt(0, pStream->MakeReference(pDoc));
pContentArray->Add(pEndStream->MakeReference(pDoc));
} else if (pContentObj->IsStream() && !pContentObj->IsInline()) {
pContentArray = pDoc->NewIndirect<CPDF_Array>();
pContentArray->Add(pStream->MakeReference(pDoc));
pContentArray->Add(pContentObj->MakeReference(pDoc));
pContentArray->Add(pEndStream->MakeReference(pDoc));
pPageDict->SetFor(pdfium::page_object::kContents,
pContentArray->MakeReference(pDoc));
}
// Need to transform the patterns as well.
CPDF_Dictionary* pRes =
pPageDict->GetDictFor(pdfium::page_object::kResources);
if (!pRes)
return true;
CPDF_Dictionary* pPatternDict = pRes->GetDictFor("Pattern");
if (!pPatternDict)
return true;
CPDF_DictionaryLocker locker(pPatternDict);
for (const auto& it : locker) {
CPDF_Object* pObj = it.second.get();
if (pObj->IsReference())
pObj = pObj->GetDirect();
CPDF_Dictionary* pDict = nullptr;
if (pObj->IsDictionary())
pDict = pObj->AsDictionary();
else if (CPDF_Stream* pObjStream = pObj->AsStream())
pDict = pObjStream->GetDict();
else
continue;
if (matrix) {
CFX_Matrix m = CFXMatrixFromFSMatrix(*matrix);
pDict->SetMatrixFor("Matrix", pDict->GetMatrixFor("Matrix") * m);
}
}
return true;
}
FX_BOOL CFFL_Utils::TraceObject(CPDF_Object* pObj)
{
if (!pObj) return FALSE;
FX_DWORD dwObjNum = pObj->GetObjNum();
switch (pObj->GetType())
{
case PDFOBJ_ARRAY:
{
CPDF_Array* pArray = (CPDF_Array*)pObj;
for (FX_DWORD i = 0; i < pArray->GetCount(); i ++)
{
CPDF_Object* pElement = pArray->GetElementValue(i);
TraceObject(pElement);
}
}
break;
case PDFOBJ_DICTIONARY:
{
CPDF_Dictionary* pDict = (CPDF_Dictionary*)pObj;
FX_POSITION fPos = pDict->GetStartPos();
CFX_ByteString csKey;
do
{
CPDF_Object* pElement = pDict->GetNextElement(fPos, csKey);
//TRACE(csKey + "\n");
if (!pElement) break;
TraceObject(pElement);
}while (TRUE);
}
break;
case PDFOBJ_STREAM:
{
CPDF_Stream* pStream = (CPDF_Stream*)pObj;
CPDF_Dictionary* pDict = pStream->GetDict();
TraceObject(pDict);
}
break;
case PDFOBJ_REFERENCE:
{
CPDF_Object* pDirectObj = pObj->GetDirect();
TraceObject(pDirectObj);
}
break;
case PDFOBJ_BOOLEAN:
break;
case PDFOBJ_NUMBER:
//TRACE("%d\n",(int32_t)pObj);
break;
case PDFOBJ_STRING:
//TRACE(((CPDF_String*)pObj)->GetString() + "\n");
break;
case PDFOBJ_NAME:
//TRACE(((CPDF_Name*)pObj)->GetString() + "\n");
break;
case PDFOBJ_NULL:
// case PDFOBJ_KEYWORD:
// case PDFOBJ_EOF:
default:
break;
}
if (dwObjNum == 0) return FALSE;
return TRUE;
}
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;
}
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));
}
}
}
}
CFX_DIBitmap* CPDF_RenderStatus::LoadSMask(CPDF_Dictionary* pSMaskDict,
FX_RECT* pClipRect,
const CFX_AffineMatrix* pMatrix) {
if (pSMaskDict == NULL) {
return NULL;
}
int width = pClipRect->right - pClipRect->left;
int height = pClipRect->bottom - pClipRect->top;
FX_BOOL bLuminosity = FALSE;
bLuminosity = pSMaskDict->GetConstString(FX_BSTRC("S")) != FX_BSTRC("Alpha");
CPDF_Stream* pGroup = pSMaskDict->GetStream(FX_BSTRC("G"));
if (pGroup == NULL) {
return NULL;
}
nonstd::unique_ptr<CPDF_Function> pFunc;
CPDF_Object* pFuncObj = pSMaskDict->GetElementValue(FX_BSTRC("TR"));
if (pFuncObj && (pFuncObj->IsDictionary() || pFuncObj->IsStream()))
pFunc.reset(CPDF_Function::Load(pFuncObj));
CFX_AffineMatrix matrix = *pMatrix;
matrix.TranslateI(-pClipRect->left, -pClipRect->top);
CPDF_Form form(m_pContext->m_pDocument, m_pContext->m_pPageResources, pGroup);
form.ParseContent(NULL, NULL, NULL, NULL);
CFX_FxgeDevice bitmap_device;
#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
if (!bitmap_device.Create(width, height,
bLuminosity ? FXDIB_Rgb32 : FXDIB_8bppMask)) {
return NULL;
}
#else
if (!bitmap_device.Create(width, height,
bLuminosity ? FXDIB_Rgb : FXDIB_8bppMask)) {
return NULL;
}
#endif
CFX_DIBitmap& bitmap = *bitmap_device.GetBitmap();
CPDF_Object* pCSObj = NULL;
CPDF_ColorSpace* pCS = NULL;
if (bLuminosity) {
CPDF_Array* pBC = pSMaskDict->GetArray(FX_BSTRC("BC"));
FX_ARGB back_color = 0xff000000;
if (pBC) {
CPDF_Dictionary* pDict = pGroup->GetDict();
if (pDict && pDict->GetDict(FX_BSTRC("Group")))
pCSObj =
pDict->GetDict(FX_BSTRC("Group"))->GetElementValue(FX_BSTRC("CS"));
else
pCSObj = NULL;
pCS = m_pContext->m_pDocument->LoadColorSpace(pCSObj);
if (pCS) {
FX_FLOAT R, G, B;
FX_DWORD comps = 8;
if (pCS->CountComponents() > static_cast<int32_t>(comps)) {
comps = (FX_DWORD)pCS->CountComponents();
}
CFX_FixedBufGrow<FX_FLOAT, 8> float_array(comps);
FX_FLOAT* pFloats = float_array;
FX_SAFE_DWORD num_floats = comps;
num_floats *= sizeof(FX_FLOAT);
if (!num_floats.IsValid()) {
return NULL;
}
FXSYS_memset(pFloats, 0, num_floats.ValueOrDie());
int count = pBC->GetCount() > 8 ? 8 : pBC->GetCount();
for (int i = 0; i < count; i++) {
pFloats[i] = pBC->GetNumber(i);
}
pCS->GetRGB(pFloats, R, G, B);
back_color = 0xff000000 | ((int32_t)(R * 255) << 16) |
((int32_t)(G * 255) << 8) | (int32_t)(B * 255);
m_pContext->m_pDocument->GetPageData()->ReleaseColorSpace(pCSObj);
}
}
bitmap.Clear(back_color);
} else {
bitmap.Clear(0);
}
CPDF_Dictionary* pFormResource = NULL;
if (form.m_pFormDict) {
pFormResource = form.m_pFormDict->GetDict(FX_BSTRC("Resources"));
}
CPDF_RenderOptions options;
options.m_ColorMode = bLuminosity ? RENDER_COLOR_NORMAL : RENDER_COLOR_ALPHA;
CPDF_RenderStatus status;
status.Initialize(m_pContext, &bitmap_device, NULL, NULL, NULL, NULL,
&options, 0, m_bDropObjects, pFormResource, TRUE, NULL, 0,
pCS ? pCS->GetFamily() : 0, bLuminosity);
status.RenderObjectList(&form, &matrix);
nonstd::unique_ptr<CFX_DIBitmap> pMask(new CFX_DIBitmap);
if (!pMask->Create(width, height, FXDIB_8bppMask))
return nullptr;
uint8_t* dest_buf = pMask->GetBuffer();
int dest_pitch = pMask->GetPitch();
uint8_t* src_buf = bitmap.GetBuffer();
int src_pitch = bitmap.GetPitch();
std::vector<uint8_t> transfers(256);
if (pFunc) {
CFX_FixedBufGrow<FX_FLOAT, 16> results(pFunc->CountOutputs());
for (int i = 0; i < 256; i++) {
FX_FLOAT input = (FX_FLOAT)i / 255.0f;
int nresult;
pFunc->Call(&input, 1, results, nresult);
transfers[i] = FXSYS_round(results[0] * 255);
}
} else {
for (int i = 0; i < 256; i++) {
transfers[i] = i;
}
}
if (bLuminosity) {
int Bpp = bitmap.GetBPP() / 8;
for (int row = 0; row < height; row++) {
uint8_t* dest_pos = dest_buf + row * dest_pitch;
uint8_t* src_pos = src_buf + row * src_pitch;
for (int col = 0; col < width; col++) {
*dest_pos++ = transfers[FXRGB2GRAY(src_pos[2], src_pos[1], *src_pos)];
src_pos += Bpp;
}
}
} else if (pFunc) {
int size = dest_pitch * height;
for (int i = 0; i < size; i++) {
dest_buf[i] = transfers[src_buf[i]];
}
} else {
FXSYS_memcpy(dest_buf, src_buf, dest_pitch * height);
}
return pMask.release();
}
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*)(FX_UINTPTR)obj_num)) {
visited->SetAt((void*)(FX_UINTPTR)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;
}
void CPDF_ContentParser::Continue(IFX_Pause* pPause)
{
while (m_Status == ToBeContinued) {
if (m_InternalStage == PAGEPARSE_STAGE_PARSE) {
if (m_pStreamFilter == NULL) {
if (m_CurrentOffset == m_nStreams) {
m_InternalStage = PAGEPARSE_STAGE_CHECKCLIP;
if (m_pType3Char) {
m_pType3Char->m_bColored = m_pParser->m_bColored;
m_pType3Char->m_Width = FXSYS_round(m_pParser->m_Type3Data[0] * 1000);
m_pType3Char->m_BBox.left = FXSYS_round(m_pParser->m_Type3Data[2] * 1000);
m_pType3Char->m_BBox.bottom = FXSYS_round(m_pParser->m_Type3Data[3] * 1000);
m_pType3Char->m_BBox.right = FXSYS_round(m_pParser->m_Type3Data[4] * 1000);
m_pType3Char->m_BBox.top = FXSYS_round(m_pParser->m_Type3Data[5] * 1000);
m_pType3Char->m_bPageRequired = m_pParser->m_bResourceMissing;
}
delete m_pParser;
m_pParser = NULL;
continue;
}
CPDF_Object* pContent = m_pObjects->m_pFormDict->GetElementValue(FX_BSTRC("Contents"));
if (pContent->GetType() == PDFOBJ_STREAM) {
m_pStreamFilter = ((CPDF_Stream*)pContent)->GetStreamFilter();
} else {
CPDF_Stream* pStream = ((CPDF_Array*)pContent)->GetStream(m_CurrentOffset);
if (pStream == NULL) {
m_CurrentOffset ++;
continue;
}
m_pStreamFilter = pStream->GetStreamFilter();
}
}
FX_DWORD len = m_pStreamFilter->ReadBlock(m_pParser->m_pStreamBuf, STREAM_PARSE_BUFSIZE);
m_pParser->InputData(m_pParser->m_pStreamBuf, len);
if (m_pParser->m_bAbort) {
delete m_pStreamFilter;
m_pStreamFilter = NULL;
m_Status = Done;
delete m_pParser;
m_pParser = NULL;
return;
}
if (len < STREAM_PARSE_BUFSIZE) {
m_pParser->Finish();
m_CurrentOffset ++;
delete m_pStreamFilter;
m_pStreamFilter = NULL;
}
if (pPause && pPause->NeedToPauseNow()) {
return;
}
}
if (m_InternalStage == PAGEPARSE_STAGE_CHECKCLIP) {
FX_POSITION pos = m_pObjects->m_ObjectList.GetHeadPosition();
while (pos) {
CPDF_PageObject* pObj = (CPDF_PageObject*)m_pObjects->m_ObjectList.GetNext(pos);
if (pObj == NULL) {
continue;
}
if (pObj->m_ClipPath.IsNull()) {
continue;
}
if (pObj->m_ClipPath.GetPathCount() != 1) {
continue;
}
if (pObj->m_ClipPath.GetTextCount()) {
continue;
}
CPDF_Path ClipPath = pObj->m_ClipPath.GetPath(0);
if (!ClipPath.IsRect() || pObj->m_Type == PDFPAGE_SHADING) {
continue;
}
CFX_FloatRect old_rect(ClipPath.GetPointX(0), ClipPath.GetPointY(0),
ClipPath.GetPointX(2), ClipPath.GetPointY(2));
CFX_FloatRect obj_rect(pObj->m_Left, pObj->m_Bottom, pObj->m_Right, pObj->m_Top);
if (old_rect.Contains(obj_rect)) {
pObj->m_ClipPath.SetNull();
}
}
if (m_pObjects->m_ObjectList.GetCount() == 1) {
CPDF_PageObject* pObj = (CPDF_PageObject*)m_pObjects->m_ObjectList.GetAt(m_pObjects->m_ObjectList.GetHeadPosition());
if (pObj && pObj->m_Type == PDFPAGE_TEXT) {
CPDF_TextObject* pText = (CPDF_TextObject*)pObj;
}
}
m_Status = Done;
return;
}
}
}
DLLEXPORT FPDF_BOOL STDCALL FPDFPage_TransFormWithClip(FPDF_PAGE page, FS_MATRIX* matrix, FS_RECTF* clipRect)
{
if(!page)
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_Page* pPage = (CPDF_Page*)page;
CPDF_Dictionary* pPageDic = pPage->m_pFormDict;
CPDF_Object* pContentObj = pPageDic->GetElement("Contents");
if(!pContentObj)
pContentObj = pPageDic->GetArray("Contents");
if(!pContentObj)
return FALSE;
CPDF_Dictionary* pDic = FX_NEW CPDF_Dictionary;
CPDF_Stream* pStream = FX_NEW CPDF_Stream(NULL,0, pDic);
pStream->SetData(textBuf.GetBuffer(), textBuf.GetSize(), FALSE, FALSE);
CPDF_Document* pDoc = pPage->m_pDocument;
if(!pDoc)
return FALSE;
pDoc->AddIndirectObject(pStream);
pDic = FX_NEW CPDF_Dictionary;
CPDF_Stream* pEndStream = FX_NEW CPDF_Stream(NULL,0, pDic);
pEndStream->SetData((FX_LPCBYTE)" Q", 2, FALSE, FALSE);
pDoc->AddIndirectObject(pEndStream);
CPDF_Array* pContentArray = NULL;
if (pContentObj && pContentObj->GetType() == PDFOBJ_ARRAY)
{
pContentArray = (CPDF_Array*)pContentObj;
CPDF_Reference* pRef = FX_NEW CPDF_Reference(pDoc, pStream->GetObjNum());
pContentArray->InsertAt(0, pRef);
pContentArray->AddReference(pDoc,pEndStream);
}
else if(pContentObj && pContentObj->GetType() == PDFOBJ_REFERENCE)
{
CPDF_Reference* pReference = (CPDF_Reference*)pContentObj;
CPDF_Object* pDirectObj = pReference->GetDirect();
if(pDirectObj != NULL)
{
if(pDirectObj->GetType() == PDFOBJ_ARRAY)
{
pContentArray = (CPDF_Array*)pDirectObj;
CPDF_Reference* pRef = FX_NEW CPDF_Reference(pDoc, pStream->GetObjNum());
pContentArray->InsertAt(0, pRef);
pContentArray->AddReference(pDoc,pEndStream);
}
else if(pDirectObj->GetType() == PDFOBJ_STREAM)
{
pContentArray = FX_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->GetDict(FX_BSTRC("Resources"));
if(pRes)
{
CPDF_Dictionary* pPattenDict = pRes->GetDict(FX_BSTRC("Pattern"));
if(pPattenDict)
{
FX_POSITION pos = pPattenDict->GetStartPos();
while(pos)
{
CPDF_Dictionary* pDict = NULL;
CFX_ByteString key;
CPDF_Object* pObj = pPattenDict->GetNextElement(pos, key);
if(pObj->GetType() == PDFOBJ_REFERENCE)
pObj = pObj->GetDirect();
if(pObj->GetType() == PDFOBJ_DICTIONARY)
{
pDict = (CPDF_Dictionary*)pObj;
}
else if(pObj->GetType() == PDFOBJ_STREAM)
{
pDict = ((CPDF_Stream*)pObj)->GetDict();
}
else
continue;
CFX_AffineMatrix m = pDict->GetMatrix(FX_BSTRC("Matrix"));
CFX_AffineMatrix t = *(CFX_AffineMatrix*)matrix;
m.Concat(t);
pDict->SetAtMatrix(FX_BSTRC("Matrix"), m);
}
}
}
return TRUE;
}
DLLEXPORT void STDCALL FPDFPage_InsertClipPath(FPDF_PAGE page,FPDF_CLIPPATH clipPath)
{
if(!page)
return;
CPDF_Page* pPage = (CPDF_Page*)page;
CPDF_Dictionary* pPageDic = pPage->m_pFormDict;
CPDF_Object* pContentObj = pPageDic->GetElement("Contents");
if(!pContentObj)
pContentObj = pPageDic->GetArray("Contents");
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 = FX_NEW CPDF_Dictionary;
CPDF_Stream* pStream = FX_NEW CPDF_Stream(NULL,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 = NULL;
if (pContentObj && pContentObj->GetType() == PDFOBJ_ARRAY)
{
pContentArray = (CPDF_Array*)pContentObj;
CPDF_Reference* pRef = FX_NEW CPDF_Reference(pDoc, pStream->GetObjNum());
pContentArray->InsertAt(0, pRef);
}
else if(pContentObj && pContentObj->GetType() == PDFOBJ_REFERENCE)
{
CPDF_Reference* pReference = (CPDF_Reference*)pContentObj;
CPDF_Object* pDirectObj = pReference->GetDirect();
if(pDirectObj != NULL)
{
if(pDirectObj->GetType() == PDFOBJ_ARRAY)
{
pContentArray = (CPDF_Array*)pDirectObj;
CPDF_Reference* pRef = FX_NEW CPDF_Reference(pDoc, pStream->GetObjNum());
pContentArray->InsertAt(0, pRef);
}
else if(pDirectObj->GetType() == PDFOBJ_STREAM)
{
pContentArray = FX_NEW CPDF_Array();
pContentArray->AddReference(pDoc,pStream->GetObjNum());
pContentArray->AddReference(pDoc,pDirectObj->GetObjNum());
pPageDic->SetAtReference("Contents", pDoc, pDoc->AddIndirectObject(pContentArray));
}
}
}
}
