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#include <iostream>
#include <string.h>
#include <stdlib.h>
#include <qpdf/QPDF.hh>
#include <qpdf/QUtil.hh>
#include <qpdf/QTC.hh>
static char const* whoami = 0;
static enum { st_none, st_numbers, st_lines } style = st_none;
static bool show_open = false;
static bool show_targets = false;
static std::map<int, int> page_map;
void usage()
{
std::cerr << "Usage: " << whoami << " [options] file.pdf [password]"
<< std::endl
<< "Options:" << std::endl
<< " -numbers give bookmarks outline-style numbers"
<< std::endl
<< " -lines draw lines to show bookmark hierarchy"
<< std::endl
<< " -show-open indicate whether a bookmark is initially open"
<< std::endl
<< " -show-targets show target if possible"
<< std::endl;
exit(2);
}
void print_lines(std::vector<int>& numbers)
{
for (unsigned int i = 0; i < numbers.size() - 1; ++i)
{
if (numbers[i])
{
std::cout << "| ";
}
else
{
std::cout << " ";
}
}
}
void generate_page_map(QPDF& qpdf)
{
std::vector<QPDFObjectHandle> pages = qpdf.getAllPages();
int n = 0;
for (std::vector<QPDFObjectHandle>::iterator iter = pages.begin();
iter != pages.end(); ++iter)
{
QPDFObjectHandle& oh = *iter;
page_map[oh.getObjectID()] = ++n;
}
}
void extract_bookmarks(QPDFObjectHandle outlines, std::vector<int>& numbers)
{
if (outlines.hasKey("/Title"))
{
// No default so gcc will warn on missing tag
switch (style)
{
case st_none:
QTC::TC("examples", "pdf-bookmarks none");
break;
case st_numbers:
QTC::TC("examples", "pdf-bookmarks numbers");
for (std::vector<int>::iterator iter = numbers.begin();
iter != numbers.end(); ++iter)
{
std::cout << *iter << ".";
}
std::cout << " ";
break;
case st_lines:
QTC::TC("examples", "pdf-bookmarks lines");
print_lines(numbers);
std::cout << "|" << std::endl;
print_lines(numbers);
std::cout << "+-+ ";
break;
}
if (show_open)
{
if (outlines.hasKey("/Count"))
{
QTC::TC("examples", "pdf-bookmarks has count");
int count = outlines.getKey("/Count").getIntValue();
if (count > 0)
{
// hierarchy is open at this point
QTC::TC("examples", "pdf-bookmarks open");
std::cout << "(v) ";
}
else
{
QTC::TC("examples", "pdf-bookmarks closed");
std::cout << "(>) ";
}
}
else
{
QTC::TC("examples", "pdf-bookmarks no count");
std::cout << "( ) ";
}
}
if (show_targets)
{
QTC::TC("examples", "pdf-bookmarks targets");
std::string target = "unknown";
// Only explicit destinations supported for now
if (outlines.hasKey("/Dest"))
{
QTC::TC("examples", "pdf-bookmarks dest");
QPDFObjectHandle dest = outlines.getKey("/Dest");
if ((dest.isArray()) && (dest.getArrayNItems() > 0))
{
QPDFObjectHandle first = dest.getArrayItem(0);
int object_id = first.getObjectID();
if (page_map.count(object_id))
{
target = QUtil::int_to_string(page_map[object_id]);
}
}
std::cout << "[ -> " << target << " ] ";
}
}
std::cout << outlines.getKey("/Title").getUTF8Value() << std::endl;
}
if (outlines.hasKey("/First"))
{
numbers.push_back(0);
QPDFObjectHandle child = outlines.getKey("/First");
while (1)
{
++(numbers.back());
bool has_next = child.hasKey("/Next");
if ((style == st_lines) && (! has_next))
{
numbers.back() = 0;
}
extract_bookmarks(child, numbers);
if (has_next)
{
child = child.getKey("/Next");
}
else
{
break;
}
}
numbers.pop_back();
}
}
int main(int argc, char* argv[])
{
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) && (strcmp(argv[1], "--version") == 0))
{
std::cout << whoami << " version 1.5" << std::endl;
exit(0);
}
int arg;
for (arg = 1; arg < argc; ++arg)
{
if (argv[arg][0] == '-')
{
if (strcmp(argv[arg], "-numbers") == 0)
{
style = st_numbers;
}
else if (strcmp(argv[arg], "-lines") == 0)
{
style = st_lines;
}
else if (strcmp(argv[arg], "-show-open") == 0)
{
show_open = true;
}
else if (strcmp(argv[arg], "-show-targets") == 0)
{
show_targets = true;
}
else
{
usage();
}
}
else
{
break;
}
}
if (arg >= argc)
{
usage();
}
char const* filename = argv[arg++];
char const* password = "";
if (arg < argc)
{
password = argv[arg++];
}
if (arg != argc)
{
usage();
}
try
{
QPDF qpdf;
qpdf.processFile(filename, password);
QPDFObjectHandle root = qpdf.getRoot();
if (root.hasKey("/Outlines"))
{
std::vector<int> numbers;
if (show_targets)
{
generate_page_map(qpdf);
}
extract_bookmarks(root.getKey("/Outlines"), numbers);
}
else
{
std::cout << filename << " has no bookmarks" << std::endl;
}
}
catch (std::exception &e)
{
std::cerr << whoami << " processing file " << filename << ": "
<< e.what() << std::endl;
exit(2);
}
return 0;
}
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