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#ifndef APT_PRIVATE_OUTPUT_H
#define APT_PRIVATE_OUTPUT_H
#include <apt-pkg/configuration.h>
#include <apt-pkg/macros.h>
#include <apt-pkg/pkgcache.h>
#include <fstream>
#include <functional>
#include <iostream>
#include <string>
// forward declaration
class pkgCacheFile;
class CacheFile;
class pkgDepCache;
class pkgRecords;
APT_PUBLIC extern std::ostream c0out;
APT_PUBLIC extern std::ostream c1out;
APT_PUBLIC extern std::ostream c2out;
APT_PUBLIC extern std::ofstream devnull;
APT_PUBLIC extern unsigned int ScreenWidth;
APT_PUBLIC bool InitOutput(std::basic_streambuf<char> * const out = std::cout.rdbuf());
void ListSingleVersion(pkgCacheFile &CacheFile, pkgRecords &records,
pkgCache::VerIterator const &V, std::ostream &out,
std::string const &format);
// helper to describe global state
APT_PUBLIC void ShowBroken(std::ostream &out, CacheFile &Cache, bool const Now);
APT_PUBLIC void ShowBroken(std::ostream &out, pkgCacheFile &Cache, bool const Now);
template<class Container, class PredicateC, class DisplayP, class DisplayV> bool ShowList(std::ostream &out, std::string const &Title,
Container const &cont,
PredicateC Predicate,
DisplayP PkgDisplay,
DisplayV VerboseDisplay)
{
size_t const ScreenWidth = (::ScreenWidth > 3) ? ::ScreenWidth - 3 : 0;
int ScreenUsed = 0;
bool const ShowVersions = _config->FindB("APT::Get::Show-Versions", false);
bool printedTitle = false;
for (auto const &Pkg: cont)
{
if (Predicate(Pkg) == false)
continue;
if (printedTitle == false)
{
out << Title;
printedTitle = true;
}
if (ShowVersions == true)
{
out << std::endl << " " << PkgDisplay(Pkg);
std::string const verbose = VerboseDisplay(Pkg);
if (verbose.empty() == false)
out << " (" << verbose << ")";
}
else
{
std::string const PkgName = PkgDisplay(Pkg);
if (ScreenUsed == 0 || (ScreenUsed + PkgName.length()) >= ScreenWidth)
{
out << std::endl << " ";
ScreenUsed = 0;
}
else if (ScreenUsed != 0)
{
out << " ";
++ScreenUsed;
}
out << PkgName;
ScreenUsed += PkgName.length();
}
}
if (printedTitle == true)
{
out << std::endl;
return false;
}
return true;
}
void ShowNew(std::ostream &out,CacheFile &Cache);
void ShowDel(std::ostream &out,CacheFile &Cache);
void ShowKept(std::ostream &out,CacheFile &Cache);
void ShowUpgraded(std::ostream &out,CacheFile &Cache);
bool ShowDowngraded(std::ostream &out,CacheFile &Cache);
bool ShowHold(std::ostream &out,CacheFile &Cache);
bool ShowEssential(std::ostream &out,CacheFile &Cache);
void Stats(std::ostream &out, pkgDepCache &Dep);
// prompting
APT_PUBLIC bool YnPrompt(char const *const Question, bool Default = true);
bool YnPrompt(char const * const Question, bool const Default, bool const ShowGlobalErrors, std::ostream &c1o, std::ostream &c2o);
bool AnalPrompt(std::string const &Question, const char *Text);
APT_PUBLIC std::string PrettyFullName(pkgCache::PkgIterator const &Pkg);
std::string CandidateVersion(pkgCacheFile * const Cache, pkgCache::PkgIterator const &Pkg);
std::function<std::string(pkgCache::PkgIterator const &)> CandidateVersion(pkgCacheFile * const Cache);
std::string CurrentToCandidateVersion(pkgCacheFile * const Cache, pkgCache::PkgIterator const &Pkg);
std::function<std::string(pkgCache::PkgIterator const &)> CurrentToCandidateVersion(pkgCacheFile * const Cache);
std::string EmptyString(pkgCache::PkgIterator const &);
bool AlwaysTrue(pkgCache::PkgIterator const &);
#endif
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