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OpenBoard/thirdparty/mera/pdf-merger/PageElementHandler.cpp

74 lines
3.1 KiB

#include "PageElementHandler.h"
using namespace merge_lib;
std::set<std::string> PageElementHandler::_allPageFields;
void PageElementHandler::_createAllPageFieldsSet()
{
if(!_allPageFields.empty())
return;
_allPageFields.insert(std::string("Type"));
_allPageFields.insert(std::string("Parent"));
_allPageFields.insert(std::string("LastModified"));
_allPageFields.insert(std::string("Resources"));
_allPageFields.insert(std::string("MediaBox"));
_allPageFields.insert(std::string("CropBox"));
_allPageFields.insert(std::string("BleedBox"));
_allPageFields.insert(std::string("TrimBox"));
_allPageFields.insert(std::string("ArtBox"));
_allPageFields.insert(std::string("BoxColorInfo"));
_allPageFields.insert(std::string("Contents"));
_allPageFields.insert(std::string("Rotate"));
_allPageFields.insert(std::string("Group"));
_allPageFields.insert(std::string("Thumb"));
_allPageFields.insert(std::string("B"));
_allPageFields.insert(std::string("Dur"));
_allPageFields.insert(std::string("Trans"));
_allPageFields.insert(std::string("Annots"));
_allPageFields.insert(std::string("AA"));
_allPageFields.insert(std::string("Metadata"));
_allPageFields.insert(std::string("PieceInfo"));
_allPageFields.insert(std::string("StructParents"));
_allPageFields.insert(std::string("ID"));
_allPageFields.insert(std::string("PZ"));
_allPageFields.insert(std::string("SeparationInfo"));
_allPageFields.insert(std::string("Tabs"));
_allPageFields.insert(std::string("TemplateInstantiated"));
_allPageFields.insert(std::string("PresSteps"));
_allPageFields.insert(std::string("UserUnit"));
_allPageFields.insert(std::string("VP"));
//for correct search all fields of XObject should be present to
_allPageFields.insert(std::string("Subtype"));
_allPageFields.insert(std::string("FormType"));
_allPageFields.insert(std::string("BBox"));
_allPageFields.insert(std::string("Matrix"));
_allPageFields.insert(std::string("Ref"));
_allPageFields.insert(std::string("StructParent"));
_allPageFields.insert(std::string("OPI"));
_allPageFields.insert(std::string("OC"));
_allPageFields.insert(std::string("Name"));
}
unsigned int PageElementHandler::_findEndOfElementContent(unsigned int startOfPageElement)
{
static std::string whitespacesAndDelimeters(" \t\f\v\n\r<<[/");
unsigned int foundSlash = _pageContent.find("/", startOfPageElement + 1);
std::string fieldType;
while(foundSlash != std::string::npos)
{
unsigned int foundWhitespace = _pageContent.find_first_of(whitespacesAndDelimeters, foundSlash + 1);
if(foundWhitespace != std::string::npos)
fieldType = _pageContent.substr(foundSlash + 1, foundWhitespace - foundSlash - 1);
else
break;
//is this any page element between "/" and " "
if(_allPageFields.count(fieldType))
{
return foundSlash;
}
foundSlash = foundWhitespace;
}
return _pageContent.rfind(">>");
}