/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
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** use the contact form at http://qt.digia.com/contact-us.
**
** 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.
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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****************************************************************************/

#ifndef RIGHTPANE_H
#define RIGHTPANE_H

#include "core_global.h"

#include <QWidget>
#include <QPointer>

QT_BEGIN_NAMESPACE
class QSettings;
QT_END_NAMESPACE

namespace Core {

class IMode;
class RightPaneWidget;

class CORE_EXPORT RightPanePlaceHolder : public QWidget
{
    friend class Core::RightPaneWidget;
    Q_OBJECT

public:
    explicit RightPanePlaceHolder(Core::IMode *mode, QWidget *parent = 0);
    ~RightPanePlaceHolder();
    static RightPanePlaceHolder *current();

private slots:
    void currentModeChanged(Core::IMode *);

private:
    void applyStoredSize(int width);
    Core::IMode *m_mode;
    static RightPanePlaceHolder* m_current;
};

class CORE_EXPORT RightPaneWidget : public QWidget
{
    Q_OBJECT

public:
    RightPaneWidget();
    ~RightPaneWidget();

    void saveSettings(QSettings *settings);
    void readSettings(QSettings *settings);

    bool isShown();
    void setShown(bool b);

    static RightPaneWidget *instance();

    void setWidget(QWidget *widget);

    int storedWidth();

protected:
    void resizeEvent(QResizeEvent *);

private:
    void clearWidget();
    bool m_shown;
    int m_width;
    QPointer<QWidget> m_widget;
    static RightPaneWidget *m_instance;
};

} // namespace Core

#endif // RIGHTPANE_H