meegim/ima/minversemousearea.h

/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the Qt Components project.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
**   * Redistributions of source code must retain the above copyright
**     notice, this list of conditions and the following disclaimer.
**   * Redistributions in binary form must reproduce the above copyright
**     notice, this list of conditions and the following disclaimer in
**     the documentation and/or other materials provided with the
**     distribution.
**   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
**     the names of its contributors may be used to endorse or promote
**     products derived from this software without specific prior written
**     permission.
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef MINVERSEMOUSEAREA_H
#define MINVERSEMOUSEAREA_H

#include <QDeclarativeItem>

class MInverseMouseArea : public QDeclarativeItem
{
    Q_OBJECT
    Q_PROPERTY(bool enabled READ isEnabled WRITE setEnabled NOTIFY enabledChanged)

public:
    MInverseMouseArea(QDeclarativeItem *parent = 0);
    ~MInverseMouseArea();

    bool isEnabled() const;
    void setEnabled(bool enabled);

protected:
    bool eventFilter(QObject *obj, QEvent *ev);
    QVariant itemChange(GraphicsItemChange change, const QVariant &value);

private:
    bool isClickedOnSoftwareInputPanel(QGraphicsSceneMouseEvent *event) const;
    QPointF mapToRootItem(QPointF pos);

signals:
    void pressedOutside(int mouseX, int mouseY);
    void clickedOutside(int mouseX, int mouseY);
    void enabledChanged();

private:
    bool m_pressed;
    bool m_enabled;

    Q_DISABLE_COPY(MInverseMouseArea)
};

QML_DECLARE_TYPE(MInverseMouseArea)

#endif // MINVERSEMOUSEAREA_H