plasma-framework/widgets/layoutitem.h

/*
 *   Copyright (C) 2007 by Matias Valdenegro T. <mvaldenegro@informatica.utem.cl>
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU Library General Public License version 2 as
 *   published by the Free Software Foundation
 *
 *   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 Library General Public
 *   License along with this program; if not, write to the
 *   Free Software Foundation, Inc.,
 *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */

#ifndef __LAYOUT_ITEM__
#define __LAYOUT_ITEM__

#include <QtCore/QRectF>
#include <QtCore/QSizeF>

#include <kdemacros.h>

namespace Plasma
{

class KDE_EXPORT LayoutItem
{
	public:
		LayoutItem();
		virtual ~LayoutItem();

		virtual Qt::Orientations expandingDirections() const = 0;

		virtual QSizeF minimumSize() const = 0;
		virtual QSizeF maximumSize() const = 0;

		virtual bool hasHeightForWidth() const;
		virtual qreal heightForWidth(qreal w) const;

		virtual bool hasWidthForHeight() const;
		virtual qreal widthForHeight(qreal h) const;

		virtual QRectF geometry() const = 0;
		virtual void setGeometry(const QRectF& geometry) = 0;

		virtual QSizeF sizeHint() const = 0;

	private:
		class Private;
		Private *const d;
};

}

#endif /* __LAYOUT_ITEM__ */