/***************************************************************************
 *   Copyright (C) 2006-2008 by Ian Reinhart Geiser                        *
 *   geiseri@yahoo.com                                                     *
 *                                                                         *
 *   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 "textoutlineimporter.h"
#include "mindmap.h"
#include "block.h"

#include <QString>
#include <QGraphicsScene>
#include <QTextStream>

TextOutlineImporter::TextOutlineImporter( MindMap *map ) : m_mindmap(map)
{
}


TextOutlineImporter::~TextOutlineImporter()
{
}

bool TextOutlineImporter::importAsciiText(QTextStream * input)
{
	Block *parent = 0;
	int lastIndentLevel = 0;
	while( !input->atEnd() )
	{
		QString line = input->readLine();
		int idx = 0;
		for( ; line[idx] == '\t' && idx < line.size(); ++idx );
		QString text = line.right(line.size() - idx);
		
		if( text.isEmpty() ) continue;

		Block *block = new Block;
		m_mindmap->scene()->addItem( block );
		block->setMindmap(m_mindmap);
		
		if( idx == 0 )
		{
			block->setShapeType( Block::Ellipse );
			block->setParentNode(0);
			m_mindmap->setRoot( block );
			parent = block;
		}
		else if( idx > lastIndentLevel )
		{
			block->setParentNode( parent );
			parent = block;
		}
		else if( idx < lastIndentLevel )
		{
			block->setParentNode( parent->parent()->parent() );
			parent = parent->parent();
		}
		else
		{
			block->setParentNode( parent->parent() );
		}
		
		block->setTitle( text );
		block->updateContents();
		
		lastIndentLevel = idx;
	}
	
	return true;
}