mirror of
git://projects.qi-hardware.com/nn-usb-fpga.git
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138 lines
4.2 KiB
C++
138 lines
4.2 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the examples of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial Usage
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** Licensees holding valid Qt Commercial licenses may use this file in
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** accordance with the Qt Commercial License Agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Nokia.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <QtGui>
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#include "lineitem.h"
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#include <math.h>
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lineItem::lineItem(QPointF startPoint, QPointF endItem, Arrow *ownerArrow,
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int wt, bool movable, QGraphicsItem *parent, QGraphicsScene *scene)
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: QGraphicsLineItem(parent, scene)
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{
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isMovable=movable;
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if(isMovable) setFlag(QGraphicsItem::ItemIsMovable, true);
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setFlag(QGraphicsItem::ItemIsSelectable, true);
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myColor = Qt::black;
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setPen(QPen(myColor, 2, Qt::SolidLine, Qt::RoundCap, Qt::RoundJoin));
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setLine(QLineF(startPoint,endItem));
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myOwnerArrow = ownerArrow;
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pWidth=wt;
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moveItem=0;
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}
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QRectF lineItem::boundingRect() const
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{
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qreal extra = (pen().width() + 20) / 2.0;
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return QRectF(line().p1(), QSizeF(line().p2().x() - line().p1().x(),
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line().p2().y() - line().p1().y()))
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.normalized()
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.adjusted(-extra, -extra, extra, extra);
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}
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QPainterPath lineItem::shape() const
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{
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QPainterPath path = QGraphicsLineItem::shape();
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return path;
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}
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void lineItem::updatePos()
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{
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QPointF itemPos = this->line().p1();
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myOwnerArrow->moveCorner(itemPos,this);
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}
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void lineItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *,
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QWidget *)
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{
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QPen myPen = pen();
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myPen.setColor(myColor);
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myPen.setWidth(pWidth);
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painter->setPen(myPen);
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painter->setBrush(myColor);
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setLine(line());
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painter->drawLine(line());
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//Drawing arrow selected
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if (isSelected()) {
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painter->setPen(QPen(Qt::gray, pWidth, Qt::SolidLine));
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QLineF myLine = line();
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painter->drawLine(myLine);
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}
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}
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void lineItem::mouseDoubleClickEvent(QGraphicsSceneMouseEvent *mouseEvent)
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{
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if(!isMovable)
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{
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myOwnerArrow->createCorner(mouseEvent->pos(),this);
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}
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QGraphicsLineItem::mouseDoubleClickEvent(mouseEvent);
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}
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void lineItem::mousePressEvent(QGraphicsSceneMouseEvent *mouseEvent)
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{
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QGraphicsLineItem::mousePressEvent(mouseEvent);
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}
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void lineItem::mouseMoveEvent(QGraphicsSceneMouseEvent *mouseEvent)
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{
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if(isMovable)
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{
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updatePos();
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}
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QGraphicsLineItem::mouseMoveEvent(mouseEvent);
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}
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void lineItem::mouseReleaseEvent(QGraphicsSceneMouseEvent *mouseEvent)
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{
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if(isMovable)
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{
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updatePos();
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}
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QGraphicsLineItem::mouseReleaseEvent(mouseEvent);
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}
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