/**
- * \file GraphicsConverter.C
- * Copyright 2002 the LyX Team
- * Read the file COPYING
+ * \file GraphicsConverter.C
+ * This file is part of LyX, the document processor.
+ * Licence details can be found in the file COPYING.
*
- * \author Angus Leeming <leeming@lyx.org>
+ * \author Angus Leeming
+ *
+ * Full author contact details are available in file CREDITS.
*/
#include <config.h>
-#ifdef __GNUG__
-#pragma implementation
-#endif
-
#include "GraphicsConverter.h"
#include "converter.h"
#include "debug.h"
+#include "format.h"
#include "support/filetools.h"
-#include "support/forkedcall.h"
+#include "support/forkedcallqueue.h"
+#include "support/tostr.h"
+#include "support/lstrings.h"
#include "support/lyxlib.h"
#include <boost/bind.hpp>
-#include <boost/signals/trackable.hpp>
-#include "Lsstream.h"
+#include "support/std_sstream.h"
#include <fstream>
-#include <sys/types.h> // needed for pid_t
-extern string system_lyxdir;
+namespace support = lyx::support;
+
+using support::ChangeExtension;
+using support::Forkedcall;
+using support::ForkedCallQueue;
+using support::LibFileSearch;
+using support::LibScriptSearch;
+using support::OnlyPath;
+using support::OnlyFilename;
+using support::QuoteName;
+using support::subst;
+using support::tempName;
+using support::unlink;
using std::endl;
+using std::ostream;
+using std::ostringstream;
-namespace grfx {
+
+namespace lyx {
+namespace graphics {
struct Converter::Impl : public boost::signals::trackable {
///
- Impl(Converter &,
- string const &, string const &, string const &, string const &);
+ Impl(string const &, string const &, string const &, string const &);
///
void startConversion();
* Cleans-up the temporary files, emits the finishedConversion
* signal and removes the Converter from the list of all processes.
*/
- void converted(string const & cmd, pid_t pid, int retval);
+ void converted(pid_t pid, int retval);
+
+ /** At the end of the conversion process inform the outside world
+ * by emitting a signal.
+ */
+ typedef boost::signal1<void, bool> SignalType;
+ ///
+ SignalType finishedConversion;
///
string script_command_;
///
string to_file_;
///
- Converter & parent_;
- ///
bool valid_process_;
///
bool finished_;
};
+bool Converter::isReachable(string const & from_format_name,
+ string const & to_format_name)
+{
+ return converters.isReachable(from_format_name, to_format_name);
+}
+
+
Converter::Converter(string const & from_file, string const & to_file_base,
string const & from_format, string const & to_format)
- : pimpl_(new Impl(*this,
- from_file, to_file_base, from_format, to_format))
+ : pimpl_(new Impl(from_file, to_file_base, from_format, to_format))
{}
+// Empty d-tor out-of-line to keep boost::scoped_ptr happy.
Converter::~Converter()
{}
-
-void Converter::startConversion()
+
+void Converter::startConversion() const
{
pimpl_->startConversion();
}
-bool Converter::isReachable(string const & from_format_name,
- string const & to_format_name)
+boost::signals::connection Converter::connect(slot_type const & slot) const
{
- return converters.isReachable(from_format_name, to_format_name);
+ return pimpl_->finishedConversion.connect(slot);
}
static string const empty;
return pimpl_->finished_ ? pimpl_->to_file_ : empty;
}
-
-} // namespace grfx
+
+} // namespace graphics
+} // namespace lyx
+
//------------------------------
// Implementation details follow
*/
bool build_script(string const & from_file, string const & to_file_base,
string const & from_format, string const & to_format,
- ostringstream & script);
+ ostream & script);
} // namespace anon
-namespace grfx {
+namespace lyx {
+namespace graphics {
-Converter::Impl::Impl(Converter & p,
- string const & from_file, string const & to_file_base,
+Converter::Impl::Impl(string const & from_file, string const & to_file_base,
string const & from_format, string const & to_format)
- : parent_(p), valid_process_(false), finished_(false)
+ : valid_process_(false), finished_(false)
{
lyxerr[Debug::GRAPHICS] << "Converter c-tor:\n"
<< "\tfrom_file: " << from_file
<< "\n\tfrom_format: " << from_format
<< "\n\tto_format: " << to_format << endl;
+ // The converted image is to be stored in this file (we do not
+ // use ChangeExtension because this is a basename which may
+ // nevertheless contain a '.')
+ to_file_ = to_file_base + '.' + formats.extension(to_format);
+
// The conversion commands are stored in a stringstream
ostringstream script;
script << "#!/bin/sh\n";
bool const success = build_script(from_file, to_file_base,
from_format, to_format, script);
- if (!success)
- return;
-
- lyxerr[Debug::GRAPHICS] << "\tConversion script:"
- << "\n--------------------------------------\n"
- << script.str().c_str()
- << "\n--------------------------------------\n";
-
- // Output the script to file.
- static int counter = 0;
- script_file_ = OnlyPath(to_file_base) + "lyxconvert" +
- tostr(counter++) + ".sh";
-
- std::ofstream fs(script_file_.c_str());
- if (!fs.good())
- return;
+ if (!success) {
+ script_command_ =
+ "sh " + LibFileSearch("scripts", "convertDefault.sh") +
+ ' ' + from_format + ':' + from_file + ' ' +
+ to_format + ':' + to_file_;
- fs << script.str().c_str();
- fs.close();
+ lyxerr[Debug::GRAPHICS]
+ << "\tNo converter defined! I use convertDefault.sh\n\t"
+ << script_command_ << endl;
- // The converted image is to be stored in this file
- // We do not use ChangeExtension here because this is a
- // basename, which may nevertheless contain a dot
- to_file_ = to_file_base + '.' + formats.extension(to_format);
-
- // The command needed to run the conversion process
- // We create a dummy command for ease of understanding of the
- // list of forked processes.
- // Note that 'sh ' is absolutely essential, or execvp will fail.
- script_command_ = "sh " + script_file_ + " " +
- OnlyFilename(from_file) + " " + to_format;
+ } else {
+ lyxerr[Debug::GRAPHICS] << "\tConversion script:"
+ << "\n--------------------------------------\n"
+ << script.str()
+ << "\n--------------------------------------\n";
+
+ // Output the script to file.
+ static int counter = 0;
+ script_file_ = OnlyPath(to_file_base) + "lyxconvert" +
+ tostr(counter++) + ".sh";
+
+ std::ofstream fs(script_file_.c_str());
+ if (!fs.good())
+ return;
+
+ fs << script.str();
+ fs.close();
+
+ // The command needed to run the conversion process
+ // We create a dummy command for ease of understanding of the
+ // list of forked processes.
+ // Note: 'sh ' is absolutely essential, or execvp will fail.
+ script_command_ = "sh " + script_file_ + ' ' +
+ OnlyFilename(from_file) + ' ' + to_format;
+ }
// All is ready to go
valid_process_ = true;
}
void Converter::Impl::startConversion()
{
if (!valid_process_) {
- converted(string(), 0, 1);
+ converted(0, 1);
return;
}
-
- // Initiate the conversion
- Forkedcall::SignalTypePtr convert_ptr;
- convert_ptr.reset(new Forkedcall::SignalType);
- convert_ptr->connect(
- boost::bind(&Impl::converted, this, _1, _2, _3));
+ Forkedcall::SignalTypePtr
+ ptr = ForkedCallQueue::get().add(script_command_);
- Forkedcall call;
- int retval = call.startscript(script_command_, convert_ptr);
- if (retval > 0) {
- // Unable to even start the script, so clean-up the mess!
- converted(string(), 0, 1);
- }
-}
+ ptr->connect(boost::bind(&Impl::converted, this, _1, _2));
+}
-void Converter::Impl::converted(string const & /* cmd */,
- pid_t /* pid */, int retval)
+void Converter::Impl::converted(pid_t /* pid */, int retval)
{
if (finished_)
// We're done already!
finished_ = true;
// Clean-up behind ourselves
- lyx::unlink(script_file_);
+ unlink(script_file_);
if (retval > 0) {
- lyx::unlink(to_file_);
+ unlink(to_file_);
to_file_.erase();
- parent_.finishedConversion(false);
+ finishedConversion(false);
} else {
- parent_.finishedConversion(true);
+ finishedConversion(true);
}
}
-} // namespace grfx
+} // namespace graphics
+} // namespace lyx
namespace {
ostringstream command;
command << "fromfile=" << from_file << "\n"
<< "tofile=" << to_file << "\n\n"
- << "'mv' -f ${fromfile} ${tofile}\n"
- << "if [ $? -ne 0 ]; then\n"
- << "\t'cp' -f ${fromfile} ${tofile}\n"
- << "\tif [ $? -ne 0 ]; then\n"
+ << "'mv' -f ${fromfile} ${tofile} ||\n"
+ << "{\n"
+ << "\t'cp' -f ${fromfile} ${tofile} ||\n"
+ << "\t{\n"
<< "\t\texit 1\n"
- << "\tfi\n"
+ << "\t}\n"
<< "\t'rm' -f ${fromfile}\n"
- << "fi\n";
+ << "}\n";
- return command.str().c_str();
+ return command.str();
}
+
bool build_script(string const & from_file,
string const & to_file_base,
string const & from_format,
string const & to_format,
- ostringstream & script)
+ ostream & script)
{
lyxerr[Debug::GRAPHICS] << "build_script ... ";
typedef Converters::EdgePath EdgePath;
- string const to_file = ChangeExtension(to_file_base,
- formats.extension(to_format));
+ // we do not use ChangeExtension because this is a basename
+ // which may nevertheless contain a '.'
+ string const to_file = to_file_base + '.'
+ + formats.extension(to_format);
if (from_format == to_format) {
script << move_file(QuoteName(from_file), QuoteName(to_file));
// Remember to remove the temp file because we only want the name...
static int counter = 0;
string const tmp = "gconvert" + tostr(counter++);
- string const to_base = lyx::tempName(string(), tmp);
- lyx::unlink(to_base);
+ string const to_base = tempName(string(), tmp);
+ unlink(to_base);
string outfile = from_file;
string const token_from("$$i");
string const token_base("$$b");
string const token_to("$$o");
- string const token_lib("$$s");
EdgePath::const_iterator it = edgepath.begin();
EdgePath::const_iterator end = edgepath.end();
+
for (; it != end; ++it) {
::Converter const & conv = converters.get(*it);
command = subst(command, token_from, "${infile}");
command = subst(command, token_base, "${infile_base}");
command = subst(command, token_to, "${outfile}");
- command = subst(command, token_lib, system_lyxdir + "scripts");
+ command = LibScriptSearch(command);
// Store in the shell script
- script << "\n" << command << "\n\n";
+ script << "\n" << command << " ||\n";
// Test that this was successful. If not, remove
// ${outfile} and exit the shell script
- script << "if [ $? -ne 0 ]; then\n"
+ script << "{\n"
<< "\t'rm' -f ${outfile}\n"
<< "\texit 1\n"
- << "fi\n\n";
+ << "}\n\n";
// Test that the outfile exists.
// ImageMagick's convert will often create ${outfile}.0,
return true;
}
-
+
} // namespace anon
projects / lyx.git / blobdiff