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/* === S Y N F I G ========================================================= */
/*! \file cairoimporter.cpp
** \brief It is the base class for all the cairo importers.
**
** $Id$
**
** \legal
** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
** Copyright (c) 2012-2013 Carlos López
**
** This package is free software; you can redistribute it and/or
** modify it under the terms of the GNU General Public License as
** published by the Free Software Foundation; either version 2 of
** the License, or (at your option) any later version.
**
** This package is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
** General Public License for more details.
** \endlegal
*/
/* ========================================================================= */
/* === H E A D E R S ======================================================= */
#ifdef USING_PCH
# include "pch.h"
#else
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <cctype>
#include <algorithm>
#include <functional>
#include <map>
#include <glibmm.h>
#include "cairoimporter.h"
#include "general.h"
#include <synfig/localization.h>
#include "canvas.h"
#include "surface.h"
#include "string.h"
#endif
/* === M A C R O S ========================================================= */
/* === G L O B A L S ======================================================= */
using namespace etl;
using namespace std;
using namespace synfig;
CairoImporter::Book* synfig::CairoImporter::book_;
map<FileSystem::Identifier, CairoImporter::LooseHandle> *__open_cairoimporters;
/* === P R O C E D U R E S ================================================= */
/* === M E T H O D S ======================================================= */
bool
CairoImporter::subsys_init()
{
book_=new Book();
__open_cairoimporters=new map<FileSystem::Identifier, CairoImporter::LooseHandle>();
return true;
}
bool
CairoImporter::subsys_stop()
{
delete book_;
delete __open_cairoimporters;
return true;
}
CairoImporter::Book&
CairoImporter::book()
{
return *book_;
}
CairoImporter::Handle
CairoImporter::open(const FileSystem::Identifier &identifier)
{
if(identifier.filename.empty())
{
synfig::error(_("CairoImporter::open(): Cannot open empty filename"));
return 0;
}
// If we already have an importer open under that filename,
// then use it instead.
if(__open_cairoimporters->count(identifier))
{
//synfig::info("Found cairo importer already open, using it...");
return (*__open_cairoimporters)[identifier];
}
if(filename_extension(identifier.filename) == "")
{
synfig::error(_("CairoImporter::open(): Couldn't find extension"));
return 0;
}
String ext(filename_extension(identifier.filename));
if (ext.size()) ext = ext.substr(1); // skip initial '.'
std::transform(ext.begin(),ext.end(),ext.begin(),&::tolower);
if(!CairoImporter::book().count(ext))
{
synfig::error(_("CairoImporter::open(): Unknown file type -- ")+ext);
return 0;
}
try {
CairoImporter::Handle importer;
importer=CairoImporter::book()[ext].factory(identifier);
(*__open_cairoimporters)[identifier]=importer;
return importer;
}
catch (const String& str)
{
synfig::error(str);
}
return 0;
}
CairoImporter::CairoImporter(const FileSystem::Identifier &identifier):
identifier(identifier)
{
}
CairoImporter::~CairoImporter()
{
// Remove ourselves from the open importer list
map<FileSystem::Identifier,CairoImporter::LooseHandle>::iterator iter;
for(iter=__open_cairoimporters->begin();iter!=__open_cairoimporters->end();++iter)
if(iter->second==this)
{
__open_cairoimporters->erase(iter);
}
}
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