comboboxutils.cpp

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/******************************************************************************
 *
 *  Copyright 2008 Szymon Tomasz Stefanek <pragma@kvirc.net>
 *
 *  This program 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 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 General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 *******************************************************************************/

#include "utils/comboboxutils.h"

#include <QVariant>

#include <KComboBox>

using namespace MessageList::Utils;

void ComboBoxUtils::fillIntegerOptionCombo( KComboBox *combo, const QList< QPair< QString, int > > &optionDescriptors )
{
    int val = getIntegerOptionComboValue( combo, -1 );
    combo->clear();
    int valIdx = -1;
    int idx = 0;

    QList< QPair< QString, int > >::ConstIterator end( optionDescriptors.end() );

    for( QList< QPair< QString, int > >::ConstIterator it = optionDescriptors.constBegin(); it != end; ++it )
    {
        if ( val == (*it).second )
            valIdx = idx;
        combo->addItem( (*it).first, QVariant( (*it).second ) );
        ++idx;
    }
    if ( idx == 0)
    {
        combo->addItem( QLatin1String("-"), QVariant( (int)0 ) ); // always default to 0
        combo->setEnabled( false );
    } else {
        if ( !combo->isEnabled() )
            combo->setEnabled( true );
        if ( valIdx >= 0 )
            combo->setCurrentIndex( valIdx );
        if ( combo->count() == 1 )
            combo->setEnabled( false ); // disable when there is no choice
    }
}

void ComboBoxUtils::setIntegerOptionComboValue( KComboBox *combo, int value )
{
    if(combo->itemData(combo->currentIndex()).toInt() == value) {
        return;
    }
    int index = combo->findData(value);
    if(index!=-1)
        combo->setCurrentIndex( index );
    else
        combo->setCurrentIndex( 0 ); // default
}

int ComboBoxUtils::getIntegerOptionComboValue( KComboBox *combo, int defaultValue )
{
    const int idx = combo->currentIndex();
    if ( idx < 0 )
        return defaultValue;

    QVariant data = combo->itemData( idx );
    bool ok;
    const int val = data.toInt( &ok );
    if ( !ok )
        return defaultValue;
    return val;
}