Blokkal

an Extendable KDE Blogging Client

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semieditablecombobox.cpp

/***************************************************************************
 *   Copyright (C) 2006 by Martin Mueller                                  *
 *   orvio@orvio.de                                                        *
 *                                                                         *
 *   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.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/
#include "semieditablecombobox.h"
#include "semieditablecombobox.moc"

#include <QShowEvent>

class Blokkal::Ui::SemiEditableComboBox::Private
{
public:
        Private( void ) {}
};

Blokkal::Ui::SemiEditableComboBox::SemiEditableComboBox( QWidget * parent ):
KComboBox( parent ),
d( new Private() )
{
        setInsertPolicy( KComboBox::NoInsert );
        connect( this, SIGNAL( activated( int ) ),
                 this, SLOT( updateEditableState( int ) ) );

        connect( this, SIGNAL( editTextChanged ( const QString & ) ),
                 this, SLOT( setCustomInfo( const QString & ) ) );
}

Blokkal::Ui::SemiEditableComboBox::~SemiEditableComboBox( void )
{
        delete d;
}

void Blokkal::Ui::SemiEditableComboBox::setItems( QStringList items )
{
        QString oldText = currentText();
        clear();
        addItem( "" );
        addItems( items );
        setCurrentText( oldText );
}

void Blokkal::Ui::SemiEditableComboBox::setCurrentIndex( int index )
{
        KComboBox::setCurrentIndex( index );
        updateEditableState( );
}

void Blokkal::Ui::SemiEditableComboBox::setCurrentText( const QString & _itemText )
{
        if( !_itemText.isNull() ) {
                int i;
                for( i = 0; i < count(); i++ ) {
                        if( itemText( i ) == _itemText ) {
                                setCurrentIndex( i );
                                break;
                        }
                }
                if( i == count() ) {
                        if( !count() ) {
                                addItem( _itemText );
                        }
                        setCurrentIndex( 0 );
                        setItemText( 0, _itemText );
                }
                updateEditableState( );
        }
}

void Blokkal::Ui::SemiEditableComboBox::showEvent( QShowEvent * event )
{
        if( event && !event->spontaneous() ) {
                updateEditableState( );
        }
}

void Blokkal::Ui::SemiEditableComboBox::updateEditableState( int index )
{
        //box is empty
        if( currentIndex() < 0 ) {
                setEditable( TRUE );
                return;
        }
        
        if( index < 0 ) {
                updateEditableState( currentIndex() );
        }
        else {
                setEditable( index == 0);
        }
}

void Blokkal::Ui::SemiEditableComboBox::setCustomInfo( const QString & text )
{
        if( currentIndex() != 0 ) {
                return;
        }
        
        setItemText( 0, text );
}