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/*
* Smart Common Input Method
*
* Copyright (c) 2005 James Su <suzhe@tsinghua.org.cn>
*
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307 USA
*
* $Id: scim_filter_module.cpp,v 1.5 2005/05/24 12:22:51 suzhe Exp $
*
*/
#define Uses_SCIM_FILTER_MODULE
#include "scim_private.h"
#include "scim.h"
namespace scim {
FilterModule::FilterModule ()
: m_filter_init (0),
m_filter_create_filter (0),
m_filter_get_filter_info (0),
m_number_of_filters (0)
{
}
FilterModule::FilterModule (const String &name, const ConfigPointer &config)
: m_filter_init (0),
m_filter_create_filter (0),
m_filter_get_filter_info (0),
m_number_of_filters (0)
{
load (name, config);
}
bool
FilterModule::load (const String &name, const ConfigPointer &config)
{
try {
if (!m_module.load (name, "Filter"))
return false;
m_filter_init =
(FilterModuleInitFunc) m_module.symbol ("scim_filter_module_init");
m_filter_create_filter =
(FilterModuleCreateFilterFunc) m_module.symbol ("scim_filter_module_create_filter");
m_filter_get_filter_info =
(FilterModuleGetFilterInfoFunc) m_module.symbol ("scim_filter_module_get_filter_info");
if (!m_filter_init || !m_filter_create_filter || !m_filter_get_filter_info ||
(m_number_of_filters = m_filter_init (config)) == 0) {
m_module.unload ();
m_filter_init = 0;
m_filter_create_filter = 0;
m_filter_get_filter_info = 0;
return false;
}
} catch (...) {
m_module.unload ();
m_filter_init = 0;
m_filter_create_filter = 0;
m_filter_get_filter_info = 0;
return false;
}
return true;
}
bool
FilterModule::unload ()
{
return m_module.unload ();
}
bool
FilterModule::valid () const
{
return (m_module.valid () && m_filter_init && m_number_of_filters > 0 &&
m_filter_create_filter && m_filter_get_filter_info);
}
FilterFactoryPointer
FilterModule::create_filter (unsigned int index) const
{
if (valid () && index < m_number_of_filters)
return m_filter_create_filter (index);
return FilterFactoryPointer (0);
}
bool
FilterModule::get_filter_info (unsigned int index, FilterInfo &info) const
{
if (valid () && index < m_number_of_filters)
return m_filter_get_filter_info (index, info);
return false;
}
unsigned int
FilterModule::number_of_filters () const
{
return m_number_of_filters;
}
int scim_get_filter_module_list (std::vector <String>& engine_list)
{
return scim_get_module_list (engine_list, "Filter");
}
} // namespace scim
/*
vi:ts=4:nowrap:ai:expandtab
*/
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