/*
    Copyright 2007 Robert Knight <robertknight@gmail.com>

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.

    This library 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
    Library General Public License for more details.

    You should have received a copy of the GNU Library General Public License
    along with this library; see the file COPYING.LIB.  If not, write to
    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
    Boston, MA 02110-1301, USA.
*/

#ifndef ITEMDELEGATE_H
#define ITEMDELEGATE_H

// Qt
#include <QtGui/QAbstractItemDelegate>

//Plasma
#include <Plasma/Delegate>

// Local
#include "core/models.h"

namespace Kickoff
{

/**
 * Item delegate for rendering items in the Kickoff launcher's views.
 *
 * The delegate makes use of the various additional Kickoff item data roles
 * to draw the item.  For example, if the DiskFreeSpaceRole and DiskUsedSpaceRole item
 * data is valid then a bar chart showing the amount of free space available on the disk
 * will be drawn.
 */
class ItemDelegate : public Plasma::Delegate , public ItemStateProvider
{
public:
    ItemDelegate(QObject *parent = 0);
    virtual void paint(QPainter *painter, const QStyleOptionViewItem& option, const QModelIndex& index) const;

    // reimplemented from ItemStateProvider
    virtual bool isVisible(const QModelIndex& index) const;

    // margin is equivalent to ItemDelegate::BACK_ARROW_WIDTH + ItemDelegate::BACK_ARROW_SPACING
    static const int HEADER_LEFT_MARGIN = 5;
    static const int HEADER_TOP_MARGIN = 15;
    static const int HEADER_BOTTOM_MARGIN = 4;
    static const int HEADER_HEIGHT = 35;
    static const int FIRST_HEADER_HEIGHT = 20;

    static const int ITEM_LEFT_MARGIN = 25;
    static const int ITEM_RIGHT_MARGIN = 7;
    static const int TOP_OFFSET = 5;

    static const int BACK_ARROW_WIDTH = 20;
    static const int BACK_ARROW_SPACING = 5;
};

}

#endif // ITEMDELEGATE_H 
