/****************************************************************************

**

** Copyright (C) 2008-2010 Nokia Corporation and/or its subsidiary(-ies).

** All rights reserved.

** Contact: Nokia Corporation (developer.feedback@nokia.com)

**

** This file is part of the HbCore module of the UI Extensions for Mobile.

**

** 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.

**

** 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.

**

** If you have questions regarding the use of this file, please contact

** Nokia at developer.feedback@nokia.com.

**

****************************************************************************/

/*!

//

//  W A R N I N G

//  -------------

//

// This implementation of longpress visualizer is most probably removed in later releases.

// It exists purely as an implementation detail.

// This implementation may change from version to

// version without notice, or even be removed.

//

// We mean it.

//

*/

#include "hblongpressvisualizer_p.h"

#include <QPen>

#include <QPainter>

/* 

	HbLongPressVisualizer

	HbLongPressVisualizer is part of the internal implementation. It is not supposed to be in public API.

	HbLongPressVisualizer is a visualizer for the long-press gesture.

	HbGestureFilter

*/

/*

	Constructs sample long-press visualization widget with a parent.

*/

HbLongPressVisualizer::HbLongPressVisualizer( QGraphicsItem *parent ) : HbWidget(parent), active(false), spanAngle(0)

{

}

/*

	Reimplemented from QGraphicsItem::paint().

*/

void HbLongPressVisualizer::paint( QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)

{

    Q_UNUSED(option);

    Q_UNUSED(widget);

    if (active) {

        QPen pen( Qt::lightGray );

        pen.setWidth(5);

        painter->setPen(pen);

        painter->drawArc(rect, 90*16, -spanAngle*16);

    }

}

/*

	Start HbLongPressVisualizer.

	Currently position is hardcoded.

*/

void HbLongPressVisualizer::start(QPointF scenePos)

{

    prepareGeometryChange();

    rect = QRect( 0, 0, 30, 30);

    if (scenePos.y() < 60 ) {

        //Draw the animation below of the touch point

        rect.moveCenter( QPointF(scenePos.x(), scenePos.y()+50));

    }

    else {

        //Draw the animation above of the touch point

        rect.moveCenter( QPointF(scenePos.x(), scenePos.y()-50));

    }

    setFrame(0);

    active = true;

}

/*

	Stop HbLongPressVisualizer.

*/

void HbLongPressVisualizer::stop()

{

    active = false;

    update();

}

/*

	Set frame for HbLongPressVisualizer

*/

void HbLongPressVisualizer::setFrame(int frame)

{

    spanAngle = frame*360/100;

    update();

}

/*

	Reimplemented from QGraphicsItem::boundingRect().

	Currently returns the default bounding rect.

*/

QRectF HbLongPressVisualizer::boundingRect() const 

{

    return rect;

}