2
1
mirror of https://github.com/qpdf/qpdf.git synced 2024-12-23 19:39:04 +00:00
qpdf/qpdf/pdf_from_scratch.cc

121 lines
2.8 KiB
C++
Raw Normal View History

#include <qpdf/QPDF.hh>
#include <qpdf/QUtil.hh>
#include <qpdf/QTC.hh>
#include <qpdf/QPDFWriter.hh>
#include <qpdf/QPDFObjectHandle.hh>
#include <iostream>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <assert.h>
static char const* whoami = 0;
void usage()
{
std::cerr << "Usage: " << whoami << " n" << std::endl;
exit(2);
}
static QPDFObjectHandle createPageContents(QPDF& pdf, std::string const& text)
{
std::string contents = "BT /F1 15 Tf 72 720 Td (" + text + ") Tj ET\n";
return QPDFObjectHandle::newStream(&pdf, contents);
}
QPDFObjectHandle newName(std::string const& name)
{
return QPDFObjectHandle::newName(name);
}
void runtest(int n)
{
QPDF pdf;
pdf.emptyPDF();
if (n == 0)
{
// Create a minimal PDF from scratch.
QPDFObjectHandle font = pdf.makeIndirectObject(
QPDFObjectHandle::parse("<<"
" /Type /Font"
" /Subtype /Type1"
" /Name /F1"
" /BaseFont /Helvetica"
" /Encoding /WinAnsiEncoding"
">>"));
QPDFObjectHandle procset = pdf.makeIndirectObject(
QPDFObjectHandle::parse("[/PDF /Text]"));
QPDFObjectHandle contents = createPageContents(pdf, "First Page");
QPDFObjectHandle mediabox = QPDFObjectHandle::parse("[0 0 612 792]");
QPDFObjectHandle rfont = QPDFObjectHandle::newDictionary();
rfont.replaceKey("/F1", font);
QPDFObjectHandle resources = QPDFObjectHandle::newDictionary();
resources.replaceKey("/ProcSet", procset);
resources.replaceKey("/Font", rfont);
QPDFObjectHandle page = pdf.makeIndirectObject(
QPDFObjectHandle::newDictionary());
page.replaceKey("/Type", newName("/Page"));
page.replaceKey("/MediaBox", mediabox);
page.replaceKey("/Contents", contents);
page.replaceKey("/Resources", resources);
pdf.addPage(page, true);
QPDFWriter w(pdf, "a.pdf");
w.setStaticID(true);
w.setStreamDataMode(qpdf_s_preserve);
w.write();
}
else
{
throw std::runtime_error(std::string("invalid test ") +
QUtil::int_to_string(n));
}
std::cout << "test " << n << " done" << std::endl;
}
int main(int argc, char* argv[])
{
QUtil::setLineBuf(stdout);
if ((whoami = strrchr(argv[0], '/')) == NULL)
{
whoami = argv[0];
}
else
{
++whoami;
}
// For libtool's sake....
if (strncmp(whoami, "lt-", 3) == 0)
{
whoami += 3;
}
if (argc != 2)
{
usage();
}
try
{
int n = QUtil::string_to_int(argv[1]);
runtest(n);
}
catch (std::exception& e)
{
std::cerr << e.what() << std::endl;
exit(2);
}
return 0;
}