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#include <iostream>
#include <string.h>
#include <stdlib.h>
#include <qpdf/QPDF.hh>
#include <qpdf/QUtil.hh>
static char const* whoami = 0;
void usage()
{
std::cerr << "Usage: " << whoami << " filename page-number" << std::endl
<< "Prints a dump of the objects in the content streams"
<< " of the given page." << std::endl
<< "Pages are numbered from 1." << std::endl;
exit(2);
}
class ParserCallbacks: public QPDFObjectHandle::ParserCallbacks
{
public:
virtual ~ParserCallbacks()
{
}
virtual void handleObject(QPDFObjectHandle);
virtual void handleEOF();
};
void
ParserCallbacks::handleObject(QPDFObjectHandle obj)
{
std::cout << obj.getTypeName() << ": ";
if (obj.isInlineImage())
{
std::string val = obj.getInlineImageValue();
char buf[3];
buf[2] = '\0';
for (size_t i = 0; i < val.length(); ++i)
{
sprintf(buf, "%02x", (unsigned char)(val[i]));
std::cout << buf;
}
std::cout << std::endl;
}
else
{
std::cout << obj.unparse() << std::endl;
}
}
void
ParserCallbacks::handleEOF()
{
std::cout << "-EOF-" << std::endl;
}
int main(int argc, char* argv[])
{
whoami = QUtil::getWhoami(argv[0]);
// For libtool's sake....
if (strncmp(whoami, "lt-", 3) == 0)
{
whoami += 3;
}
if (argc != 3)
{
usage();
}
char const* filename = argv[1];
int pageno = atoi(argv[2]);
try
{
QPDF pdf;
pdf.processFile(filename);
std::vector<QPDFObjectHandle> pages = pdf.getAllPages();
if ((pageno < 1) || (pageno > (int)pages.size()))
{
usage();
}
QPDFObjectHandle page = pages[pageno-1];
QPDFObjectHandle contents = page.getKey("/Contents");
ParserCallbacks cb;
QPDFObjectHandle::parseContentStream(contents, &cb);
}
catch (std::exception& e)
{
std::cerr << whoami << ": " << e.what() << std::endl;
exit(2);
}
return 0;
}
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