125 lines
4.0 KiB
C++
Executable File
125 lines
4.0 KiB
C++
Executable File
/****************************************************************************
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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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#ifndef ARROW_H
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#define ARROW_H
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#include <QGraphicsLineItem>
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#include <QtXml>
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#include "diagramtextitem.h"
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#include "diagramscene.h"
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QT_BEGIN_NAMESPACE
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class QGraphicsPolygonItem;
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class QGraphicsLineItem;
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class QGraphicsPathItem;
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class QGraphicsScene;
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class QRectF;
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class QGraphicsSceneMouseEvent;
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class QPainterPath;
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QT_END_NAMESPACE
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class lineItem;
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class DiagramScene;
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class Arrow : public QGraphicsPathItem
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{
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public:
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enum { Type = UserType + 32 };
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Arrow(QPointF startPoint,QPointF endPoint,
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QGraphicsItem *parent = 0, QGraphicsScene *scene = 0);
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int type() const
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{ return Type; }
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QRectF boundingRect() const;
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QPainterPath shape() const;
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void setColor(const QColor &color)
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{ myColor=color; }
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void removeLine(lineItem *line);
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void removeLines();
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bool addLine(lineItem *line);
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void setStartPoint(QPointF point){startPoint=point;}
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void setEndPoint(QPointF point){endPoint=point;}
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QPointF getStartPoint(){return startPoint;}
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QPointF getEndPoint(){return endPoint;}
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void createCorner(QPointF cornerPos, lineItem *inLine);
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void createCorner(QPointF cornerPos, int index);
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void moveCorner(QPointF cornerPos, lineItem *inLine, bool relative = 1);
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void setVisibleCorners(bool visible);
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void snapToGrid(QGraphicsSceneMouseEvent *event);
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QDomDocument toXmlFormat();
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QDomElement toXml(QDomDocument &) const;
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void createFirstCorner();
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void setSelectedArrows();
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public slots:
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void updatePosition();
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protected:
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void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
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QWidget *widget = 0);
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void mousePressEvent(QGraphicsSceneMouseEvent *event);
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void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);
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void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
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private:
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QColor myColor;
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QList<lineItem *> myLines;
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QList<lineItem *> myCLines;
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lineItem *SECLine;
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QPointF startPoint;
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QPointF endPoint;
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QList<QPointF> myCorners;
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QGraphicsScene *myOwnerScene;
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qreal arrowSize;
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bool moving;
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QPointF previousPos;
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};
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#endif
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