void showPagesInfo(PDFParser& parser, InputFile& pdfFile, EStatusCode status)
{
for(unsigned long i=0; i < parser.GetPagesCount() && eSuccess == status; ++i)
{
cout << "Showing info for page " << i << ":\n";
// Parse page object
RefCountPtr<PDFDictionary> page(parser.ParsePage(i));
// check XObject referenences
checkXObjectRef(parser,page);
// show page content
RefCountPtr<PDFObject> contents(parser.QueryDictionaryObject(page.GetPtr(),"Contents"));
if(!contents)
{
cout << "No contents for this page\n";
continue;
}
// content may be array or single
cout << "Showing content of page:\n";
showPageContent(parser,contents,pdfFile);
cout << "End page content\n";
}
}
EStatusCode parsePDF()
{
PDFParser parser;
InputFile pdfFile;
EStatusCode status = pdfFile.OpenFile(scBasePath + "XObjectContent.PDF");
if(status != eSuccess)
return status;
status = parser.StartPDFParsing(pdfFile.GetInputStream());
if(status != eSuccess)
return status;
showPDFinfo(parser); // Just wcout some info (no iteration)
showPagesInfo(parser,pdfFile,status);
return status;
}
void checkXObjectRef(PDFParser& parser,RefCountPtr<PDFDictionary> page)
{
PDFObjectCastPtr<PDFDictionary> resources(parser.QueryDictionaryObject(page.GetPtr(),"Resources"));
if(!resources)
{
wcout << "No XObject in this page\n";
return;
}
PDFObjectCastPtr<PDFDictionary> xobjects(parser.QueryDictionaryObject(resources.GetPtr(),"XObject"));
if(!xobjects)
{
wcout << "No XObject in this page\n";
return;
}
cout << "Displaying XObjects information for this page:\n";
showXObjectsPerPageInfo(parser,xobjects);
}
void showContentStream(PDFStreamInput* inStream,IByteReaderWithPosition* inPDFStream,PDFParser& inParser)
{
IByteReader* streamReader = inParser.CreateInputStreamReader(inStream);
Byte buffer[1000];
if(streamReader)
{
inPDFStream->SetPosition(inStream->GetStreamContentStart());
while(streamReader->NotEnded())
{
LongBufferSizeType readAmount = streamReader->Read(buffer,1000);
cout.write((const char*)buffer,readAmount);
}
cout << "\n";
}
else
cout << "Unable to read content stream\n";
delete streamReader;
}
void showXObjectsPerPageInfo(PDFParser& parser,PDFObjectCastPtr<PDFDictionary> xobjects)
{
RefCountPtr<PDFName> key;
PDFObjectCastPtr<PDFIndirectObjectReference> value;
MapIterator<PDFNameToPDFObjectMap> it = xobjects->GetIterator();
while(it.MoveNext())
{
key = it.GetKey();
value = it.GetValue();
cout << "XObject named " << key->GetValue().c_str() << " is object " << value->mObjectID << " of type ";
PDFObjectCastPtr<PDFStreamInput> xobject(parser.ParseNewObject(value->mObjectID));
PDFObjectCastPtr<PDFDictionary> xobjectDictionary(xobject->QueryStreamDictionary());
PDFObjectCastPtr<PDFName> typeOfXObject = xobjectDictionary->QueryDirectObject("Subtype");
cout << typeOfXObject->GetValue().c_str() << "\n";
}
}
void showPageContent(PDFParser& parser, RefCountPtr<PDFObject> contents, InputFile& pdfFile)
{
if(contents->GetType() == ePDFObjectArray)
{
PDFObjectCastPtr<PDFIndirectObjectReference> streamReferences;
SingleValueContainerIterator<PDFObjectVector> itContents = ((PDFArray*)contents.GetPtr())->GetIterator();
// array of streams
while(itContents.MoveNext())
{
streamReferences = itContents.GetItem();
PDFObjectCastPtr<PDFStreamInput> stream = parser.ParseNewObject(streamReferences->mObjectID);
showContentStream(stream.GetPtr(),pdfFile.GetInputStream(),parser);
}
}
else
{
// stream
showContentStream((PDFStreamInput*)contents.GetPtr(),pdfFile.GetInputStream(),parser);
}
}
void showPDFinfo(PDFParser& parser)
{
cout << "PDF Header level = " << parser.GetPDFLevel() << "\n";
cout << "Number of objects in PDF = " << parser.GetObjectsCount() << "\n";
cout << "Number of pages in PDF = " << parser.GetPagesCount() << "\n";
}
EStatusCode RotatedPagesPDF::Run(const TestConfiguration& inTestConfiguration)
{
LogConfiguration logConfiguration(true,true,RelativeURLToLocalPath(inTestConfiguration.mSampleFileBase,"RotatedPagesLog.txt"));
EStatusCode status;
do
{
// PDF Page rotation writing
PDFWriter pdfWriter;
status = pdfWriter.StartPDF(
RelativeURLToLocalPath(inTestConfiguration.mSampleFileBase,"RotatedPages.pdf"),
ePDFVersion13,logConfiguration);
if(status != PDFHummus::eSuccess)
{
cout<<"failed to start RotatedPages.pdf\n";
break;
}
AbstractContentContext::TextOptions textOptions(pdfWriter.GetFontForFile(
RelativeURLToLocalPath(
inTestConfiguration.mSampleFileBase,
"TestMaterials/fonts/arial.ttf")),
14,
AbstractContentContext::eGray,
0);
for(int i=0;i<6 && PDFHummus::eSuccess == status;++i)
{
PDFPage page;
page.SetMediaBox(PDFRectangle(0,0,595,842));
page.SetRotate(33);
if ( page.GetRotate().second != 0 )
{
status = PDFHummus::eFailure;
cout<<"Failed to reject invalid rotation\n";
break;
}
page.SetRotate(i*90);
std::ostringstream s;
s << "Page rotated by " << i*90 << " degrees.";
PageContentContext* cxt = pdfWriter.StartPageContentContext(&page);
cxt->WriteText(75,805,s.str(),textOptions);
status = pdfWriter.EndPageContentContext(cxt);
if(status != eSuccess)
{
status = PDFHummus::eFailure;
cout<<"Failed to end content context\n";
break;
}
status = pdfWriter.WritePage(&page);
if(status != PDFHummus::eSuccess)
cout<<"failed to write page "<<i<<"\n";
}
status = pdfWriter.EndPDF();
if(status != PDFHummus::eSuccess)
{
cout<<"failed in end RotatedPages.pdf\n";
break;
}
// PDF page rotation copy
status = pdfWriter.StartPDF(
RelativeURLToLocalPath(inTestConfiguration.mSampleFileBase,"RotatedPagesCopy.pdf"),
ePDFVersion13);
if(status != PDFHummus::eSuccess)
{
cout<<"failed to start RotatedPagesCopy.pdf\n";
break;
}
EStatusCodeAndObjectIDTypeList result;
// append pages
result = pdfWriter.AppendPDFPagesFromPDF(
RelativeURLToLocalPath(inTestConfiguration.mSampleFileBase,"RotatedPages.pdf"),
PDFPageRange());
if(result.first != PDFHummus::eSuccess)
{
cout<<"failed to append pages from RotatedPages.pdf\n";
status = result.first;
break;
}
status = pdfWriter.EndPDF();
if(status != PDFHummus::eSuccess)
{
cout<<"failed in end RotatedPagesCopy.pdf\n";
break;
}
// PDF Page rotation parsing
InputFile pdfFile;
PDFParser pdfParser;
status = pdfFile.OpenFile(
RelativeURLToLocalPath(inTestConfiguration.mSampleFileBase,"RotatedPagesCopy.pdf"));
if(status != PDFHummus::eSuccess)
{
cout<<"unable to open file RotatedPagesCopy.pdf for reading.\n";
break;
}
status = pdfParser.StartPDFParsing(pdfFile.GetInputStream());
if(status != PDFHummus::eSuccess)
{
cout<<"unable to parse input file";
break;
}
if(pdfParser.GetPagesCount() != 6)
{
cout<<"expecting 6 pages, got "<<pdfParser.GetPagesCount()<<"\n";
status = PDFHummus::eFailure;
break;
}
for(unsigned long i=0;i<pdfParser.GetPagesCount() && PDFHummus::eSuccess == status;++i)
{
RefCountPtr<PDFDictionary> page = pdfParser.ParsePage(i);
if (!page)
{
cout << i << ". page parsing failed\n";
status = PDFHummus::eFailure;
break;
}
PDFPageInput input( &pdfParser, page );
if ( input.GetRotate() != i*90 )
{
cout<< i << ". page has invalid rotation\n";
status = PDFHummus::eFailure;
break;
}
}
}while(false);
return status;
}
