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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the examples 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 http://www.qtsoftware.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/
#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
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