/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
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** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the Qt Designer of the Qt Toolkit.
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** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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.
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** 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.
**
** 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
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** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef BUDDYEDITOR_H
#define BUDDYEDITOR_H

#include "buddyeditor_global.h"

#include <connectionedit_p.h>
#include <QtCore/QPointer>
#include <QtCore/QSet>

QT_BEGIN_NAMESPACE

class QDesignerFormWindowInterface;

class QLabel;

namespace qdesigner_internal {

class QT_BUDDYEDITOR_EXPORT BuddyEditor : public ConnectionEdit
{
    Q_OBJECT

public:
    BuddyEditor(QDesignerFormWindowInterface *form, QWidget *parent);

    QDesignerFormWindowInterface *formWindow() const;
    virtual void setBackground(QWidget *background);
    virtual void deleteSelected();

public slots:
    virtual void updateBackground();
    virtual void widgetRemoved(QWidget *w);
    void autoBuddy();

protected:
    virtual QWidget *widgetAt(const QPoint &pos) const;
    virtual Connection *createConnection(QWidget *source, QWidget *destination);
    virtual void endConnection(QWidget *target, const QPoint &pos);
    virtual void createContextMenu(QMenu &menu);

private:
    QWidget *findBuddy(QLabel *l, const QWidgetList &existingBuddies) const;

    QPointer<QDesignerFormWindowInterface> m_formWindow;
    bool m_updating;
};

}  // namespace qdesigner_internal

QT_END_NAMESPACE

#endif