KGpgExpandableNode.h

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/* Copyright 2008,2009,2012 Rolf Eike Beer <kde@opensource.sf-tec.de>
 *
 * 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) version 3 or any later version
 * accepted by the membership of KDE e.V. (or its successor approved
 * by the membership of KDE e.V.), which shall act as a proxy
 * defined in Section 14 of version 3 of the license.
 *
 * 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, see <http://www.gnu.org/licenses/>.
 */
#ifndef KGPGEXPANDABLENODE_H
#define KGPGEXPANDABLENODE_H

#include "KGpgNode.h"

class KGpgSubkeyNode;
class KGpgRefNode;

class KGpgExpandableNode : public KGpgNode
{
    Q_OBJECT

    friend class KGpgRefNode;
    friend class KGpgSubkeyNode;
protected:
    KGpgNode::List children;

    virtual void readChildren() = 0;

    explicit KGpgExpandableNode(KGpgExpandableNode *parent = NULL);
public:
    virtual ~KGpgExpandableNode();

    virtual bool hasChildren() const;
    virtual bool wasExpanded() const;
    virtual int getChildCount();
    virtual const KGpgNode::List &getChildren() const;
    virtual KGpgNode *getChild(const int index) const;
    virtual int getChildIndex(KGpgNode *node) const;
    virtual void deleteChild(KGpgNode *child);
};

#endif /* KGPGEXPANDABLENODE_H */