creator/plugins/kparts/codeeditorpart/Models/model_GraphLayers.cpp

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/* This file is part of Rocs,
   Copyright (C) 2008 by:
   Tomaz Canabrava <tomaz.canabrava@gmail.com>
   Ugo Sangiori <ugorox@gmail.com>

   Rocs 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.

   Rocs 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 Step; if not, write to the Free Software
   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
*/
#include "model_GraphLayers.h"
#include "graphDocument.h"
#include "graph.h"
#include <QString>
#include <QModelIndex>
#include <KDebug>

GraphLayersModel::GraphLayersModel( GraphDocument* document, QObject* parent )
    : QAbstractListModel( parent )
{
    _document = document;
}

int GraphLayersModel::rowCount( const QModelIndex& ) const
{
    if( _document == 0 ) return 0;
    return _document -> size();
}

QVariant GraphLayersModel::data( const QModelIndex& index, int role ) const
{
    if( _document == 0 )
    {
        return 0;
    }
    if(( !index.isValid() ) || ( index.row() > _document -> size() ) || ( role != Qt::DisplayRole ) )
    {
        return QVariant();
    }

    return _document->at( index.row() )->property( "name" );
}

QVariant GraphLayersModel::headerData( int section, Qt::Orientation orientation, int role ) const
{
    if( _document == 0 )
    {
        return QVariant();
    }
    if( role != Qt::DisplayRole )
    {
        return QVariant();
    }
    if( orientation == Qt::Horizontal )
    {
        return QString( "Column %1" ).arg( section );
    }

    return QString( "Row %1" ).arg( section );

}

Qt::ItemFlags GraphLayersModel::flags( const QModelIndex& index ) const
{
    if( !index.isValid() )
    {
        return Qt::ItemIsEnabled;
    }
    return QAbstractItemModel::flags( index ) | Qt::ItemIsEditable;
}

bool GraphLayersModel::setData( const QModelIndex& index, const QVariant& value, int role )
{
    if( index.isValid() && ( role == Qt::ItemIsEditable ) )
    {
        Graph* g = _document->at( index.row() );
        g-> setProperty( "name", value.toString() );
        return true;
    }
    return false;
}

bool GraphLayersModel::insertRows( int position, int , const QModelIndex& )
{
    if( _document == 0 ) return false;

    beginInsertRows( QModelIndex(), position, position );
    _document->addGraph( i18n( "Untitled%1", rowCount() ) );
    kDebug() << "Called!";
    endInsertRows();
    return true;
}

bool GraphLayersModel::removeRows( int position, int rows, const QModelIndex& )
{
    if( _document == 0 ) return false;
    beginRemoveRows( QModelIndex(), position, position + rows - 1 );
    _document->removeAt( position );
    endRemoveRows();
    return true;
}

Graph* GraphLayersModel::at( const QModelIndex& index )
{
    if( _document->size() == 0 ) return 0;
    return _document->at( index.row() );
}

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