CPDF_Image* CPDF_DocPageData::GetImage(CPDF_Object* pImageStream)
{
if (!pImageStream) {
return NULL;
}
FX_DWORD dwImageObjNum = pImageStream->GetObjNum();
CPDF_CountedObject<CPDF_Image*>* imageData;
if (m_ImageMap.Lookup(dwImageObjNum, imageData)) {
imageData->m_nCount ++;
return imageData->m_Obj;
}
imageData = FX_NEW CPDF_CountedObject<CPDF_Image*>;
if (!imageData) {
return NULL;
}
CPDF_Image* pImage = FX_NEW CPDF_Image(m_pPDFDoc);
if (!pImage) {
delete imageData;
return NULL;
}
pImage->LoadImageF((CPDF_Stream*)pImageStream, FALSE);
imageData->m_nCount = 2;
imageData->m_Obj = pImage;
m_ImageMap.SetAt(dwImageObjNum, imageData);
return pImage;
}
CPDF_Image* CPDF_Image::Clone() {
if (m_pStream->GetObjNum())
return m_pDocument->GetPageData()->GetImage(m_pStream);
CPDF_Image* pImage = new CPDF_Image(m_pDocument);
pImage->LoadImageF(ToStream(m_pStream->CPDF_Object::Clone()), m_bInline);
if (m_bInline)
pImage->SetInlineDict(ToDictionary(m_pInlineDict->Clone(TRUE)));
return pImage;
}
CPDF_Image* CPDF_Image::Clone()
{
if (m_pStream->GetObjNum()) {
return m_pDocument->GetPageData()->GetImage(m_pStream);
}
CPDF_Image* pImage = FX_NEW CPDF_Image(m_pDocument);
pImage->LoadImageF((CPDF_Stream*)((CPDF_Object*)m_pStream)->Clone(), m_bInline);
if (m_bInline) {
CPDF_Dictionary *pInlineDict = (CPDF_Dictionary*)m_pInlineDict->Clone(TRUE);
pImage->SetInlineDict(pInlineDict);
}
return pImage;
}
CPDF_Image* CPDF_DocPageData::GetImage(CPDF_Object* pImageStream) {
if (!pImageStream)
return nullptr;
const FX_DWORD dwImageObjNum = pImageStream->GetObjNum();
auto it = m_ImageMap.find(dwImageObjNum);
if (it != m_ImageMap.end()) {
return it->second->AddRef();
}
CPDF_Image* pImage = new CPDF_Image(m_pPDFDoc);
pImage->LoadImageF(pImageStream->AsStream(), FALSE);
CPDF_CountedImage* imageData = new CPDF_CountedImage(pImage);
m_ImageMap[dwImageObjNum] = imageData;
return imageData->AddRef();
}
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";
}
}