C:/Projets/hexamonkey/gui/tree/treeitem.h
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00001 //This file is part of the HexaMonkey project, a multimedia analyser
00002 //Copyright (C) 2013  Sevan Drapeau-Martin, Nicolas Fleury
00003 
00004 //This program is free software; you can redistribute it and/or
00005 //modify it under the terms of the GNU General Public License
00006 //as published by the Free Software Foundation; either version 2
00007 //of the License, or (at your option) any later version.
00008 
00009 //This program is distributed in the hope that it will be useful,
00010 //but WITHOUT ANY WARRANTY; without even the implied warranty of
00011 //MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00012 //GNU General Public License for more details.
00013 
00014 //You should have received a copy of the GNU General Public License
00015 //along with this program; if not, write to the Free Software
00016 //Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
00017 
00018 #ifndef TREEITEM_H
00019 #define TREEITEM_H
00020 
00021 #include <QList>
00022 #include <QVariant>
00023 
00033 class TreeItem : public QObject
00034 {
00035     Q_OBJECT
00036 public:
00037 
00038     static TreeItem* RootItem(const QList<QVariant> &data, QObject *owner);
00039     virtual ~TreeItem() {}
00040 
00041     bool removeChildren();
00042     bool removeChildren(int position, int count);
00043 
00044 
00045     TreeItem *child(int row);
00046     int childCount() const;
00047     int columnCount() const;
00048     QVariant data(int column) const;
00049 
00050     int row() const;
00051     TreeItem *parent();
00052     bool hasChildren() const;
00053 
00054     void load() const;
00055     virtual bool synchronised();
00056 
00057     virtual QVariant clipboardValue() const;
00058     virtual bool hasStream() const;
00059     virtual bool hasLinkTo() const;
00060     virtual qint64 linkTo() const;
00061 
00062 protected:
00063     TreeItem(const QList<QVariant> &data, TreeItem *parent);
00064     QList<QVariant>& itemData() const;
00065     virtual void doLoad() const;
00066 
00067     virtual void onChildrenRemoved();
00068 
00069 signals:
00070     bool childrenRemoved();
00071 
00072 private:
00073     TreeItem(const QList<QVariant> &data, TreeItem *parent, QObject *owner);
00074     void appendChild(TreeItem *child);
00075 
00076     QList<TreeItem*> _childItems;
00077     TreeItem* _parentItem;
00078     mutable QList<QVariant> _itemData;
00079     mutable bool _loaded;
00080 };
00081 
00082 #endif // TREEITEM_H