lyx_mirror/src/format.C

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/**
* \file format.C
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author Dekel Tsur
*
* Full author contact details are available in file CREDITS.
*/
#include <config.h>
#include "format.h"
#include "buffer.h"
#include "bufferparams.h"
#include "lyxrc.h"
#include "debug.h"
#include "gettext.h"
#include "frontends/Alert.h" //to be removed?
#include "support/filetools.h"
#include "support/path.h"
#include "support/systemcall.h"
#include "support/lyxfunctional.h"
using namespace lyx::support;
namespace {
string const token_from("$$i");
string const token_path("$$p");
} //namespace anon
bool operator<(Format const & a, Format const & b)
{
// use the compare_ascii_no_case instead of compare_no_case,
// because in turkish, 'i' is not the lowercase version of 'I',
// and thus turkish locale breaks parsing of tags.
return compare_ascii_no_case(a.prettyname(), b.prettyname()) < 0;
}
Format::Format(string const & n, string const & e, string const & p,
string const & s, string const & v): name_(n),
extension_(e),
prettyname_(p),
shortcut_(s),
viewer_(v)
{}
bool Format::dummy() const
{
return extension().empty();
}
bool Format::isChildFormat() const
{
if (name_.empty())
return false;
return isdigit(name_[name_.length() - 1]);
}
string const Format::parentFormat() const
{
return name_.substr(0, name_.length() - 1);
}
// This method should return a reference, and throw an exception
// if the format named name cannot be found (Lgb)
Format const * Formats::getFormat(string const & name) const
{
FormatList::const_iterator cit =
find_if(formatlist.begin(), formatlist.end(),
lyx::compare_memfun(&Format::name, name));
if (cit != formatlist.end())
return &(*cit);
else
return 0;
}
int Formats::getNumber(string const & name) const
{
FormatList::const_iterator cit =
find_if(formatlist.begin(), formatlist.end(),
lyx::compare_memfun(&Format::name, name));
if (cit != formatlist.end())
return cit - formatlist.begin();
else
return -1;
}
void Formats::add(string const & name)
{
if (!getFormat(name))
add(name, name, name, string());
}
void Formats::add(string const & name, string const & extension,
string const & prettyname, string const & shortcut)
{
FormatList::iterator it =
find_if(formatlist.begin(), formatlist.end(),
lyx::compare_memfun(&Format::name, name));
if (it == formatlist.end())
formatlist.push_back(Format(name, extension, prettyname,
shortcut, ""));
else {
string viewer = it->viewer();
*it = Format(name, extension, prettyname, shortcut, viewer);
}
}
void Formats::erase(string const & name)
{
FormatList::iterator it =
find_if(formatlist.begin(), formatlist.end(),
lyx::compare_memfun(&Format::name, name));
if (it != formatlist.end())
formatlist.erase(it);
}
void Formats::sort()
{
std::sort(formatlist.begin(), formatlist.end());
}
void Formats::setViewer(string const & name, string const & command)
{
add(name);
FormatList::iterator it =
find_if(formatlist.begin(), formatlist.end(),
lyx::compare_memfun(&Format::name, name));
if (it != formatlist.end())
it->setViewer(command);
}
bool Formats::view(Buffer const & buffer, string const & filename,
string const & format_name) const
{
if (filename.empty())
return false;
Format const * format = getFormat(format_name);
if (format && format->viewer().empty() &&
format->isChildFormat())
format = getFormat(format->parentFormat());
if (!format || format->viewer().empty()) {
// I believe this is the wrong place to show alerts, it should be done by
// the caller (this should be "utility" code
Alert::error(_("Cannot view file"),
bformat(_("No information for viewing %1$s"),
prettyName(format_name)));
return false;
}
string command = format->viewer();
if (format_name == "dvi" &&
!lyxrc.view_dvi_paper_option.empty()) {
command += ' ' + lyxrc.view_dvi_paper_option;
string paper_size = buffer.params().paperSizeName();
if (paper_size == "letter")
paper_size = "us";
command += ' ' + paper_size;
if (buffer.params().orientation == ORIENTATION_LANDSCAPE)
command += 'r';
}
if (!contains(command, token_from))
command += ' ' + token_from;
command = subst(command, token_from,
QuoteName(OnlyFilename(filename)));
command = subst(command, token_path, QuoteName(OnlyPath(filename)));
lyxerr[Debug::FILES] << "Executing command: " << command << std::endl;
buffer.message(_("Executing command: ") + command);
Path p(OnlyPath(filename));
Systemcall one;
int const res = one.startscript(Systemcall::DontWait, command);
if (res) {
Alert::error(_("Cannot view file"),
bformat(_("An error occurred whilst running %1$s"),
command.substr(0, 50)));
return false;
}
return true;
}
string const Formats::prettyName(string const & name) const
{
Format const * format = getFormat(name);
if (format)
return format->prettyname();
else
return name;
}
string const Formats::extension(string const & name) const
{
Format const * format = getFormat(name);
if (format)
return format->extension();
else
return name;
}
Formats formats;
Formats system_formats;