1 files changed, 111 insertions, 0 deletions
diff --git a/akregator/src/tagset.h b/akregator/src/tagset.h
new file mode 100644
index 00000000..0c0a2009
--- /dev/null
+++ b/akregator/src/tagset.h
@@ -0,0 +1,111 @@
+/*
+    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_TAGSET_H
+#define AKREGATOR_TAGSET_H
+
+#include <qobject.h>
+
+class QDomDocument;
+template <class K,class T> class QMap;
+class QString;
+class QStringList;
+
+namespace Akregator {
+
+class Tag;
+
+/** \brief represents a set of tags (see Tag)
+    In an application, there is usually one central tag set that is used.
+    The tag set is not necessarily managed by the application itself, it might also be part of 
+    a desktop-wide framework (like Tenor) managing a common tag set for all applications 
+    
+    @author Frank Osterfeld
+*/
+
+class TagSet : public QObject
+{
+    friend class Tag;
+    Q_OBJECT
+    public:
+
+        TagSet(QObject* parent=0);
+        virtual ~TagSet();
+
+        /** adds a tag to the tag set. The tag set will emit signalTagAdded */
+        void insert(const Tag& tag);
+
+        /** removes a tag from the tag set. The tag set will emit signalTagRemoved */
+        void remove(const Tag& tag);
+
+        /** returns the tag set as map ((id, Tag) pairs) */
+        QMap<QString,Tag> toMap() const;
+
+        /** returns @c true if this set contains @c tag */
+        bool contains(const Tag& tag) const;
+
+        /** returns @c true if this set contains a tag with a given ID */
+        bool containsID(const QString& id) const;
+
+        /** returns the tag with the given ID if the tag is element of the set, or a null tag if not */
+        Tag findByID(const QString& id) const;
+
+        /** reads tag set from XML
+            see toXML() for an explanation of the format */
+        void readFromXML(const QDomDocument& doc);
+
+        /** returns an XML representation of the tag set. 
+            The root element is @c <tagSet>, a tag  ("someID", "someName") is represented as
+            \code <tag id="someID">someName</tag> \endcode
+            Full example: 
+            \code
+            <?xml version="1.0" encoding="UTF-8"?>
+            <tagSet version="0.1" >
+            <tag id="http://akregator.sf.net/tags/Interesting" >Interesting</tag>
+            <tag id="AFs3SdaD" >Pretty boring</tag>
+            </tagSet>
+            \endcode
+         */
+        QDomDocument toXML() const;
+
+    signals:
+        /** emitted when a tag was added to this tag set */
+        void signalTagAdded(const Tag&);
+        /** emitted when a tag was removed from this set */
+        void signalTagRemoved(const Tag&);
+        /** emitted when a tag in this set was changed (e.g. renamed) */
+        void signalTagUpdated(const Tag&);
+
+    protected:
+        /** called by the tag (Tag is friend class) after a change */
+        void tagUpdated(const Tag& tag);
+        
+    private:
+        class TagSetPrivate;
+        TagSetPrivate* d;
+};
+
+} // namespace Akregator
+
+#endif // AKREGATOR_TAGSET_H