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/****************************************************************************
**
** 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 QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** 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."
** $QT_END_LICENSE$
**
****************************************************************************/

#include "node.h"
#include "stickman.h"

#include <QRectF>
#include <QPainter>
#include <QGraphicsSceneMouseEvent>

Node::Node(const QPointF &pos, QGraphicsItem *parent)
  : QGraphicsObject(parent), m_dragging(false)
{
    setPos(pos);
    setFlag(QGraphicsItem::ItemSendsGeometryChanges);
}

Node::~Node()
{
}

QRectF Node::boundingRect() const
{
    return QRectF(-6.0, -6.0, 12.0, 12.0);
}

void Node::paint(QPainter *painter, const QStyleOptionGraphicsItem *, QWidget *)
{    
    painter->setPen(Qt::white);
    painter->drawEllipse(QPointF(0.0, 0.0), 5.0, 5.0);
}

QVariant Node::itemChange(GraphicsItemChange change, const QVariant &value)
{
    if (change == QGraphicsItem::ItemPositionChange)
        emit positionChanged();

    return QGraphicsObject::itemChange(change, value);
}

void Node::mousePressEvent(QGraphicsSceneMouseEvent *)
{
    m_dragging = true;
}

void Node::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
{
    if (m_dragging)
        setPos(mapToParent(event->pos()));    
}

void Node::mouseReleaseEvent(QGraphicsSceneMouseEvent *)
{
    m_dragging = false;
}