ColumnLayout.h

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/*
 *   Copyright (C) 2007, 2008, 2009, 2010 Ivan Cukic <ivan.cukic(at)kde.org>
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU Lesser/Library General Public License version 2,
 *   or (at your option) any later version, 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 Lesser/Library General Public License for more details
 *
 *   You should have received a copy of the GNU Lesser/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 LANCELOT_COLUMN_LAYOUT_H
#define LANCELOT_COLUMN_LAYOUT_H

#include <lancelot/lancelot_export.h>

#include <QtGui/QGraphicsLayout>
#include <QtGui/QGraphicsLayoutItem>

namespace Lancelot
{

class LANCELOT_EXPORT ColumnLayout: public QGraphicsLayout
{
public:
    class ColumnSizer {
    public:
        virtual void init(int count) = 0;

        virtual qreal size() = 0;

        virtual ~ColumnSizer();

        enum SizerType {
            EqualSizer,  
            GoldenSizer  
        };

        static ColumnSizer * create(SizerType type);
    };

    ColumnLayout(QGraphicsLayoutItem * parent = 0);

    ~ColumnLayout();

    void setColumnCount(int count);

    int columnCount() const;

    void push(QGraphicsWidget * widget);

    QGraphicsWidget * pop();

    void setSizer(ColumnSizer * sizer);

    ColumnSizer * sizer() const;

    L_Override void setGeometry(const QRectF & rect);
    L_Override int count() const;
    L_Override QGraphicsLayoutItem * itemAt(int i) const;
    L_Override QSizeF sizeHint(Qt::SizeHint which,
            const QSizeF & constraint = QSizeF()) const;

    L_Override void removeAt(int index);  
private:
    class Private;
    Private * const d;
};

} // namespace Lancelot

#endif /* LANCELOT_COLUMN_LAYOUT_H */