/***************************************************************************
*   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 "alignblockscommand.h"
#include "movecommand.h"
#include "block.h"
#include "mindmap.h"

AlignBlocksCommand::AlignBlocksCommand(const QList<QByteArray> &ids, Mode mode, MindMap *listener)
		: QUndoCommand()
{
	QList<Block*> blocks;
	QRectF area;
	QRectF blockRect;
	foreach( QByteArray id, ids)
	{
		Block *block = listener->resolveNodeByID(id);
		blockRect.setTopLeft( block->mapToScene( block->boundingRect().topLeft() ));
		blockRect.setBottomRight( block->mapToScene( block->boundingRect().bottomRight() ));
		area = area.united( blockRect );
		blocks << block;
	}

	foreach( Block *block, blocks)
	{
		blockRect.setTopLeft( block->mapToScene( block->boundingRect().topLeft() ));
		blockRect.setBottomRight( block->mapToScene( block->boundingRect().bottomRight() ));

		QPointF delta;
		switch( mode )
		{
		case Left:
			{
				setText( "align left edges" );
				delta.setX( area.left() - blockRect.left());
				break;
			}
		case Right:
			{
				setText( "align right edges" );
				delta.setX( area.right() - blockRect.right() );
				break;
			}
		case Top:
			{
				setText( "align top edges" );
				delta.setY( area.top() - blockRect.top() );
				break;
			}
		case Bottom:
			{
				setText( "align bottom edges" );
				delta.setY( area.bottom() - blockRect.bottom() );
				break;
			}
		case CenterH:
			{
				setText( "align centers horizontally" );
				QPointF centerPoint = area.center() - blockRect.center();
				delta.setX( centerPoint.x());
				break;
			}
		case CenterV:
			{
				setText( "align centers vertically" );
				QPointF centerPoint = area.center() - blockRect.center();
				delta.setY( centerPoint.y());
				break;
			}
		default:
			break;
		};
		new MoveCommand(block->id(), delta, listener, this);
	}
}


AlignBlocksCommand::~AlignBlocksCommand()
{

}