111 lines
3.6 KiB
C++
111 lines
3.6 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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#ifndef NODE_H
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#define NODE_H
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#include <QtGui>
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#define DEFAULT_BALL_SIZE 10
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#define BALL_HEIGHT 2
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class Edge;
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QT_BEGIN_NAMESPACE
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class QGraphicsSceneMouseEvent;
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QT_END_NAMESPACE
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class Node : public QGraphicsObject
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{
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Q_OBJECT
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public:
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Node();
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void addEdge(Edge *edge);
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QList<Edge *> edges() const;
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enum { Type = UserType + 1 };
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int type() const { return Type; }
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QRectF boundingRect() const;
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QPainterPath shape() const;
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void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);
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void setBallSize(int size);
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void stepToCenter(qreal step=10);
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int getBallSize() {return ballSize;}
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qreal getX();
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qreal getY();
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void setCenteringX(bool val) {centerX = val;}
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void setCenteringY(bool val) {centerY = val;}
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void setFixedX(bool val) {fixedX = val;}
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void setFixedY(bool val) {fixedY = val;}
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bool getFixedX() {return fixedX;}
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bool getFixedY() {return fixedY;}
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void setMinX(int val) {minX = val;};
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void setMaxX(int val) {maxX = val;};
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void setColor(const QColor & color);
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signals:
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void moved(int x, int y);
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void focus();
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void unfocus();
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protected:
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QVariant itemChange(GraphicsItemChange change, const QVariant &value);
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void mousePressEvent(QGraphicsSceneMouseEvent *event);
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void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);
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private:
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bool bPressed;
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bool centerX;
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bool centerY;
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bool fixedX;
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bool fixedY;
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int ballSize;
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int minX;
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int maxX;
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QList<Edge *> edgeList;
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QPointF newPos;
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QColor nodecolor;
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};
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#endif
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