File indexing completed on 2024-04-21 05:50:36

 /*
     SPDX-FileCopyrightText: 2008, 2009, 2012 Rolf Eike Beer <kde@opensource.sf-tec.de>
 
     SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only OR LicenseRef-KDE-Accepted-GPL
 */
 
 #ifndef KGPGEXPANDABLENODE_H
 #define KGPGEXPANDABLENODE_H
 
 #include "KGpgNode.h"
 
 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;
 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 = nullptr);
 public:
     ~KGpgExpandableNode() override;
 
     /**
      * 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.
      */
     bool hasChildren() const override;
     /**
      * 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;
     int getChildCount() override;
     virtual const KGpgNode::List &getChildren() const;
     KGpgNode *getChild(const int index) const override;
     int getChildIndex(KGpgNode *node) const override;
     virtual void deleteChild(KGpgNode *child);
 };
 
 #endif /* KGPGEXPANDABLENODE_H */