kexicharencodingcombobox.cpp

/* This file is part of the KDE project
   Copyright (C) 2005 Jaroslaw Staniek <js@iidea.pl>
 
   This program is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public
   License as published by the Free Software Foundation; either
   version 2 of the License, or (at your option) any later version.
 
   This program 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
   Library General Public License for more details.
 
   You should have received a copy of the GNU Library General Public License
   along with this program; see the file COPYING.  If not, write to
   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
 */
 
#include "kexicharencodingcombobox.h"
 
#include <tqtextcodec.h>
 
#include <kdebug.h>
#include <tdelocale.h>
#include <tdeglobal.h>
#include <kcharsets.h>
 
KexiCharacterEncodingComboBox::KexiCharacterEncodingComboBox( 
    TQWidget* parent, const TQString& selectedEncoding )
 : KComboBox( parent, "KexiCharacterEncodingComboBox" )
 , m_defaultEncodingAdded(false)
{
    TQString defaultEncoding(TQString::fromLatin1(TDEGlobal::locale()->encoding()));
    TQString defaultEncodingDescriptiveName;
 
    TQString _selectedEncoding = selectedEncoding;
    if (_selectedEncoding.isEmpty())
        _selectedEncoding = TQString::fromLatin1(TDEGlobal::locale()->encoding());
 
    TQStringList descEncodings(TDEGlobal::charsets()->descriptiveEncodingNames());
    TQStringList::ConstIterator it = descEncodings.constBegin();
 
    for (uint id = 0; it!=descEncodings.constEnd(); ++it)
    {
        bool found = false;
        TQString name( TDEGlobal::charsets()->encodingForName( *it ) );
        TQTextCodec *codecForEnc = TDEGlobal::charsets()->codecForName(name, found);
        if (found) {
            insertItem(*it);
            if (codecForEnc->name() == defaultEncoding || name == defaultEncoding) {
                defaultEncodingDescriptiveName = *it;
                //remember, do not add, will be prepended later
            }
            else {
                m_encodingDescriptionForName.insert(name, *it);
            }
            if (codecForEnc->name() == _selectedEncoding || name == _selectedEncoding) {
                setCurrentItem(id);
            }
            id++;
        }
    }
 
    //prepend default encoding, if present
    if (!defaultEncodingDescriptiveName.isEmpty()) {
        m_defaultEncodingAdded = true;
        TQString desc = i18n("Text encoding: Default", "Default: %1")
            .arg(defaultEncodingDescriptiveName);
        insertItem( desc, 0 );
        if (_selectedEncoding==defaultEncoding) {
            setCurrentItem(0);
        }
        else
            setCurrentItem(currentItem()+1);
        m_encodingDescriptionForName.insert(defaultEncoding, desc);
    }
}
 
KexiCharacterEncodingComboBox::~KexiCharacterEncodingComboBox()
{
}
 
TQString KexiCharacterEncodingComboBox::selectedEncoding() const
{
    if (defaultEncodingSelected()) {
        return TQString::fromLatin1(TDEGlobal::locale()->encoding());
    }
    else {
        return TDEGlobal::charsets()->encodingForName( currentText() );
    }
}
 
void KexiCharacterEncodingComboBox::setSelectedEncoding(const TQString& encodingName)
{
    TQString desc = m_encodingDescriptionForName[encodingName];
    if (desc.isEmpty()) {
        kdWarning() << "KexiCharacterEncodingComboBox::setSelectedEncoding(): "
            "no such encoding \"" << encodingName << "\"" << endl;
        return;
    }
    setCurrentText(desc);
}
 
bool KexiCharacterEncodingComboBox::defaultEncodingSelected() const
{
    return m_defaultEncodingAdded && 0==currentItem();
}
 
void KexiCharacterEncodingComboBox::selectDefaultEncoding()
{
    if (m_defaultEncodingAdded)
        setCurrentItem(0);
}