/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** 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
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** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
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****************************************************************************/

#pragma once

#include <QScrollArea>

QT_FORWARD_DECLARE_CLASS(QDesignerFormWindowInterface)

namespace SharedTools {

namespace Internal { class FormResizer; }

/* A scroll area that embeds a Designer form window */

class WidgetHost : public QScrollArea
{
    Q_OBJECT
public:
    explicit WidgetHost(QWidget *parent = 0, QDesignerFormWindowInterface *formWindow = 0);
    virtual ~WidgetHost();
    // Show handles if active and main container is selected.
    void updateFormWindowSelectionHandles(bool active);

    inline QDesignerFormWindowInterface *formWindow() const { return m_formWindow; }

    QWidget *integrationContainer() const;

protected:
    void setFormWindow(QDesignerFormWindowInterface *fw);

signals:
    void formWindowSizeChanged(int, int);

private slots:
    void fwSizeWasChanged(const QRect &, const QRect &);

private:
    QSize formWindowSize() const;

    QDesignerFormWindowInterface *m_formWindow;
    Internal::FormResizer *m_formResizer;
    QSize m_oldFakeWidgetSize;
};

} // namespace SharedTools
