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authorQt by Nokia <qt-info@nokia.com>2011-04-27 12:05:43 +0200
committeraxis <qt-info@nokia.com>2011-04-27 12:05:43 +0200
commite1b2c9deb5943faae2b29be6a5c006f75bb73f06 (patch)
treefc79e45367c0a8fc71185e9afc33f7503a58653c /tests/auto/xmlpatternssdk/TreeItem.h
downloadqtxmlpatterns-e1b2c9deb5943faae2b29be6a5c006f75bb73f06.tar.gz
Initial import from the monolithic Qt.
This is the beginning of revision history for this module. If you want to look at revision history older than this, please refer to the Qt Git wiki for how to use Git history grafting. At the time of writing, this wiki is located here: http://qt.gitorious.org/qt/pages/GitIntroductionWithQt If you have already performed the grafting and you don't see any history beyond this commit, try running "git log" with the "--follow" argument. Branched from the monolithic repo, Qt master branch, at commit 896db169ea224deb96c59ce8af800d019de63f12
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+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef PatternistSDK_TreeItem_H
+#define PatternistSDK_TreeItem_H
+
+#include <QObject>
+
+#include "Global.h"
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+class QVariant;
+template<typename T> class QList;
+template<typename T> class QPointer;
+
+namespace QPatternistSDK
+{
+ /**
+ * @short TreeItem is a node in a hierachial structure and is used together
+ * with TreeModel.
+ *
+ * TreeItem is abstract base class. Instances of sub-classes of TreeItem
+ * can be used with TreeModel in order to use hierarchial data in Qt's
+ * model/view framework.
+ *
+ * TreeItem is a QObject in order to be able to be used with QPointer.
+ *
+ * @author Frans Englich <frans.englich@nokia.com>
+ * @see TreeModel
+ * @ingroup PatternistSDK
+ */
+ class Q_PATTERNISTSDK_EXPORT TreeItem : public QObject
+ {
+ Q_OBJECT
+ public:
+ typedef QList<QPointer<TreeItem> > List;
+
+ virtual ~TreeItem() {}
+ virtual void appendChild(TreeItem *item) = 0;
+ virtual TreeItem *child(const unsigned int row) const = 0;
+ virtual unsigned int childCount() const = 0;
+ virtual TreeItem *parent() const = 0;
+
+ virtual TreeItem::List children() const = 0;
+ virtual int columnCount() const = 0;
+
+ /**
+ * Determines the position among the children of
+ * this TreeItem's parent. This is done by introspecting the result
+ * of children().
+ */
+ int row() const;
+
+ virtual QVariant data(const Qt::ItemDataRole role, int column) const = 0;
+
+ Q_SIGNALS:
+ /**
+ * Emitted whenever this item changed. This is used for keeping
+ * views in synchronization with the item model which houses
+ * this item.
+ *
+ * @param item the item which changed. That is, this TreeItem.
+ */
+ void changed(TreeItem *item);
+ };
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif
+// vim: et:ts=4:sw=4:sts=4