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/*
This file is part of Akregator.
Copyright (C) 2005 Frank Osterfeld <frank.osterfeld at kdemail.net>
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.
As a special exception, permission is given to link this program
with any edition of Qt, and distribute the resulting executable,
without including the source code for Qt in the source distribution.
*/
#ifndef AKREGATOR_NODELIST_H
#define AKREGATOR_NODELIST_H
#include <qobject.h>
class QDomDocument;
class QDomNode;
class QString;
template <class K,class T> class QMap;
template <class T> class QValueList;
// hack for KDE 3.x series
#ifdef signals
# undef signals
# define signals public
#endif
namespace Akregator {
class Folder;
class TreeNode;
class NodeList : public QObject
{
Q_OBJECT
public:
NodeList(QObject *parent=0, const char *name=0);
virtual ~NodeList();
virtual Folder* rootNode() const;
virtual bool readFromXML(const QDomDocument& doc) = 0;
virtual QDomDocument toXML() const = 0;
virtual bool isEmpty() const;
TreeNode* findByID(int id) const;
/** returns the title of the feed list (as used in the OPML document) */
const QString& title() const;
/** sets the title of the feed list */
void setTitle(const QString& name);
/** returns a flat list containing all nodes in the tree */
const QValueList<TreeNode*>& asFlatList() const;
signals:
void signalDestroyed(NodeList*);
/** emitted when a node was added to the list */
void signalNodeAdded(TreeNode*);
/** emitted when a node was removed from the list */
void signalNodeRemoved(TreeNode*);
public slots:
/**
* Clears the list without touching the root node.
*/
void clear();
public: // compat with KDE-3.x assertions, remove for KDE 4
// protected:
QValueList<TreeNode*>* flatList() const;
QMap<int, TreeNode*>* idMap() const;
int generateID();
void setRootNode(Folder* folder);
virtual void addNode(TreeNode* node, bool preserveID);
virtual void removeNode(TreeNode* node);
public slots: // compat with KDE-3.x assertions, remove for KDE 4
// protected slots:
virtual void slotNodeDestroyed(TreeNode* node);
virtual void slotNodeAdded(TreeNode* node);
virtual void slotNodeRemoved(Folder* parent, TreeNode* node);
public: // compat with KDE-3.x assertions, remove for KDE 4
// private:
NodeList(const NodeList&) : QObject() {}
NodeList& operator=(const NodeList&) { return *this; }
friend class AddNodeVisitor;
class AddNodeVisitor;
friend class RemoveNodeVisitor;
class RemoveNodeVisitor;
class NodeListPrivate;
NodeListPrivate* d;
};
} // namespace Akregator
#endif // AKREGATOR_NODELIST_H
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