FreeCAD

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/***************************************************************************
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 *   Copyright (c) 2017 WandererFan <wandererfan@gmail.com>                *
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 *                                                                         *
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 *   This file is part of the FreeCAD CAx development system.              *
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 *                                                                         *
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 *   This library is free software; you can redistribute it and/or         *
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 *   modify it under the terms of the GNU Library General Public           *
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 *   License as published by the Free Software Foundation; either          *
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 *   version 2 of the License, or (at your option) any later version.      *
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 *                                                                         *
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 *   This library  is distributed in the hope that it will be useful,      *
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 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
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 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
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 *   GNU Library General Public License for more details.                  *
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 *                                                                         *
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 *   You should have received a copy of the GNU Library General Public     *
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 *   License along with this library; see the file COPYING.LIB. If not,    *
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 *   write to the Free Software Foundation, Inc., 59 Temple Place,         *
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 *   Suite 330, Boston, MA  02111-1307, USA                                *
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 *                                                                         *
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 ***************************************************************************/
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#include "PreCompiled.h"
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#ifndef _PreComp_
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# include <cassert>
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# include <QPainter>
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# include <QStyleOptionGraphicsItem>
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#endif
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#include "QGDisplayArea.h"
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using namespace TechDrawGui;
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QGDisplayArea::QGDisplayArea()
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{
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    setHandlesChildEvents(false);
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    setCacheMode(QGraphicsItem::NoCache);
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    setAcceptHoverEvents(false);
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    setFlag(QGraphicsItem::ItemIsSelectable, false);
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    setFlag(QGraphicsItem::ItemIsMovable, false);
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    setFlag(QGraphicsItem::ItemClipsChildrenToShape, false);
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    setFlag(QGraphicsItem::ItemSendsGeometryChanges, true);
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}
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void QGDisplayArea::centerAt(QPointF centerPos)
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{
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    centerAt(centerPos.x(), centerPos.y());
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}
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void QGDisplayArea::centerAt(double cX, double cY)
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{
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    QRectF box = boundingRect();
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    double width = box.width();
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    double height = box.height();
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    double newX = cX - width/2.;
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    double newY = cY - height/2.;
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    setPos(newX, newY);
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}
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void QGDisplayArea::paint ( QPainter * painter, const QStyleOptionGraphicsItem * option, QWidget * widget) {
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    QStyleOptionGraphicsItem myOption(*option);
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    myOption.state &= ~QStyle::State_Selected;
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    //painter->drawRect(boundingRect());          //good for debugging
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    QGraphicsItemGroup::paint (painter, &myOption, widget);
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}
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QRectF QGDisplayArea::boundingRect() const
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{
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    return childrenBoundingRect();
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}
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