/* 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_GraphDocument.h"
#include "graphDocument.h"
#include "graph.h"
#include <QString>
#include <KDebug>
#include <QModelIndex>

GraphDocumentModel::GraphDocumentModel(QList< GraphDocument*>* documents, QObject *parent)
        : QAbstractListModel( parent ), _documents( (*documents) ) {

}

int GraphDocumentModel::rowCount(const QModelIndex&) const {
    return _documents.size();
}

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

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

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

}

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

bool GraphDocumentModel::setData(const QModelIndex& index, const QVariant& value, int role) {
    if ( index.isValid() && (role == Qt::ItemIsEditable)) {
        _documents.at(index.row())-> setName(value.toString());
        emit dataChanged(index, index);
        return true;
    }
    return false;
}

bool GraphDocumentModel::insertRows(int position, int rows, const QModelIndex&) {
    beginInsertRows(QModelIndex(), position, position+rows-1);

    GraphDocument *doc = new  GraphDocument("untitled");
    _documents.append(doc);
    endInsertRows();
    return true;
}

bool GraphDocumentModel::removeRows(int position, int rows, const QModelIndex&) {
    beginRemoveRows(QModelIndex(), position, position+rows-1);
    _documents.removeAt(position);
    endRemoveRows();
    return true;
}

GraphDocument *GraphDocumentModel::at(const QModelIndex& index) {
    return _documents.at(index.row());
}