kde-workspace-dev 4:4.8.5-0ubuntu0.4 / usr / include / systemsettingsview / MenuProxyModel.h

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/**************************************************************************
 * Copyright (C) 2009 Ben Cooksley <bcooksley@kde.org>                    *
 * Copyright (C) 2007 Will Stephenson <wstephenson@kde.org>               *
 *                                                                        *
 * 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., 51 Franklin Street, Fifth Floor, Boston, MA          *
 * 02110-1301, USA.                                                       *
***************************************************************************/

#ifndef MENUPROXYMODEL_H
#define MENUPROXYMODEL_H

#include <KDE/KCategorizedSortFilterProxyModel>
#include "systemsettingsview_export.h"

/**
 * @brief Provides a filter model for MenuModel
 *
 * Provides a standardised model to be used with views to filter a MenuModel.\n
 * It automatically sorts the items appropriately depending on if it is categorised
 * or not.
 * Call setFilterRegExp(QString) with the desired text to filter to perform searching.
 * Items that do not match the search parameters will be disabled, not hidden.
 *
 * @author Will Stephenson <wstephenson@kde.org> 
 * @author Ben Cooksley <bcooksley@kde.org>
 */
class SYSTEMSETTINGSVIEW_EXPORT MenuProxyModel : public KCategorizedSortFilterProxyModel
{
    Q_OBJECT

public:
    /**
     * Constructs a MenuProxyModel with the specified parent.
     *
     * @param parent The QObject to use as a parent.
     */
    MenuProxyModel( QObject *parent = 0 );

    /**
     * Please see the Qt QSortFilterProxyModel documentation for further information.\n
     * Provides information on whether or not the QModelIndex specified by left is below right.
     *
     * @param left the QModelIndex that is being used for comparing.
     * @param right the QModelIndex to compare aganist.
     * @returns true if the left is below the right.
     */
    virtual bool lessThan( const QModelIndex &left, const QModelIndex &right ) const;

    /**
     * Please see the KDE KCategorizedSortFilterProxyModel documentation for futher information.\n
     * Provides information on whether or not the QModelIndex specified by left is below right.
     *
     * @param left the QModelIndex that is being used for comparing.
     * @param right the QModelIndex to compare aganist.
     * @returns true if the left is below the right.
     */
    virtual bool subSortLessThan( const QModelIndex &left, const QModelIndex &right ) const;

    /**
     * Please see the Qt QSortFilterProxyModel documentation for futher information.\n
     * Provides additional filtering of the MenuModel to only show categories which contain modules.
     *
     * @param source_column Please see QSortFilterProxyModel documentation.
     * @param source_parent Please see QSortFilterProxyModel documentation.
     * @returns true if the row should be displayed, false if it should not.
     */
    virtual bool filterAcceptsRow( int source_column, const QModelIndex &source_parent ) const;

    /**
     * Please see Qt QAbstractItemModel documentation for more details.\n
     * Provides the status flags for the QModelIndex specified.
     * The item will be selectable and enabled for its status unless invalid or filtered by search terms.
     *
     * @returns The flags for the QModelIndex provided.
     */
    Qt::ItemFlags flags( const QModelIndex &index ) const;

    /**
     * Please see Qt QAbstractItemModel documentation for more details.\n
     * Reimplemented for internal reasons.
     */
    void setFilterRegExp ( const QRegExp & regExp );
    
    /**
     * Please see Qt QAbstractItemModel documentation for more details.\n
     * Reimplemented for internal reasons.
     */
    void setFilterRegExp ( const QString & pattern );

};

#endif

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