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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the demonstration applications 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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef MODELMENU_H
+#define MODELMENU_H
+
+#include <QtGui/QMenu>
+#include <QtCore/QAbstractItemModel>
+
+// A QMenu that is dynamically populated from a QAbstractItemModel
+class ModelMenu : public QMenu
+{
+    Q_OBJECT
+
+signals:
+    void activated(const QModelIndex &index);
+    void hovered(const QString &text);
+
+public:
+    ModelMenu(QWidget *parent = 0);
+
+    void setModel(QAbstractItemModel *model);
+    QAbstractItemModel *model() const;
+
+    void setMaxRows(int max);
+    int maxRows() const;
+
+    void setFirstSeparator(int offset);
+    int firstSeparator() const;
+
+    void setRootIndex(const QModelIndex &index);
+    QModelIndex rootIndex() const;
+
+    void setHoverRole(int role);
+    int hoverRole() const;
+
+    void setSeparatorRole(int role);
+    int separatorRole() const;
+
+    QAction *makeAction(const QIcon &icon, const QString &text, QObject *parent);
+
+protected:
+    // add any actions before the tree, return true if any actions are added.
+    virtual bool prePopulated();
+    // add any actions after the tree
+    virtual void postPopulated();
+    // put all of the children of parent into menu up to max
+    void createMenu(const QModelIndex &parent, int max, QMenu *parentMenu = 0, QMenu *menu = 0);
+
+private slots:
+    void aboutToShow();
+    void triggered(QAction *action);
+    void hovered(QAction *action);
+
+private:
+    QAction *makeAction(const QModelIndex &index);
+    int m_maxRows;
+    int m_firstSeparator;
+    int m_maxWidth;
+    int m_hoverRole;
+    int m_separatorRole;
+    QAbstractItemModel *m_model;
+    QPersistentModelIndex m_root;
+};
+
+#endif // MODELMENU_H
+