/****************************************************************************
**
** 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
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** In addition, as a special exception, Digia gives you certain additional
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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****************************************************************************/
#ifndef SIZEHANDLERECT_H
#define SIZEHANDLERECT_H

#include "widgethostconstants.h"

#include <QWidget>
#include <QPoint>

namespace SharedTools {
namespace Internal {

class SizeHandleRect : public QWidget
{
    Q_OBJECT
public:
    enum Direction { LeftTop, Top, RightTop, Right, RightBottom, Bottom, LeftBottom, Left };

    SizeHandleRect(QWidget *parent, Direction d, QWidget *resizable);

    Direction dir() const  { return m_dir; }
    void updateCursor();
    void setState(SelectionHandleState st);

signals:

    void mouseButtonReleased(const QRect &, const QRect &);

protected:
    void paintEvent(QPaintEvent *e);
    void mousePressEvent(QMouseEvent *e);
    void mouseMoveEvent(QMouseEvent *e);
    void mouseReleaseEvent(QMouseEvent *e);

private:
    void tryResize(const QSize &delta);

private:
    const Direction m_dir;
    QPoint m_startPos;
    QPoint m_curPos;
    QSize m_startSize;
    QSize m_curSize;
    QWidget *m_resizable;
    SelectionHandleState m_state;
};

}
} // namespace SharedTools


#endif // SIZEHANDLERECT_H