mirror of
https://bitbucket.org/smil3y/kde-extraapps.git
synced 2025-02-24 10:52:53 +00:00
85 lines
2.9 KiB
C++
85 lines
2.9 KiB
C++
/* 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;
|
|
|
|
/**
|
|
* @brief The abstract base class for all classes that may have child objects
|
|
*
|
|
* Every class that represents something in the keyring that may have
|
|
* child objects inherits from this class. That does not mean that every
|
|
* child object always has children, but every child \em may have children.
|
|
*/
|
|
class KGpgExpandableNode : public KGpgNode
|
|
{
|
|
Q_OBJECT
|
|
|
|
friend class KGpgRefNode;
|
|
friend class KGpgSubkeyNode;
|
|
protected:
|
|
KGpgNode::List children;
|
|
|
|
/**
|
|
* reimplemented in every base class to read in the child data
|
|
*
|
|
* This allows the child objects to delay the loading of the
|
|
* child objects until they are really needed to avoid time
|
|
* consuming operations for data never used.
|
|
*/
|
|
virtual void readChildren() = 0;
|
|
|
|
explicit KGpgExpandableNode(KGpgExpandableNode *parent = NULL);
|
|
public:
|
|
virtual ~KGpgExpandableNode();
|
|
|
|
/**
|
|
* check if there are any child nodes
|
|
*
|
|
* The default implementation returns true if any child nodes were loaded.
|
|
* This may be reimplemented by child classes so they can indicate that
|
|
* there are child nodes before actually loading them.
|
|
*
|
|
* This method indicates if there are children if this node is expanded.
|
|
* In contrast wasExpanded() will only return true if the child nodes
|
|
* are actually present in memory.
|
|
*/
|
|
virtual bool hasChildren() const;
|
|
/**
|
|
* check if there are any child nodes present in memory
|
|
*
|
|
* Returns true if any child nodes were loaded.
|
|
*
|
|
* This method indicates if the children of this node are already loaded
|
|
* into memory. In contrast hasChildren() may return true even if the child
|
|
* objects are not present in memory.
|
|
*/
|
|
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 */
|