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git-svn-id: svn+ssh://svn.tuxfamily.org/svnroot/qet/qet/trunk@2035 bfdf4180-ca20-0410-9c96-a3a8aa849046
94 lines
3.4 KiB
C++
94 lines
3.4 KiB
C++
/*
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Copyright 2006-2012 Xavier Guerrin
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This file is part of QElectroTech.
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QElectroTech is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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QElectroTech 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 General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with QElectroTech. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef PART_LINE_H
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#define PART_LINE_H
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#include <QtGui>
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#include "customelementgraphicpart.h"
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#include "qet.h"
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/**
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This class represents a line primitive which may be used to compose the
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drawing of an electrical element within the element editor. Lines may have
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specific visual ends (e.g. arrows) through the setFirstEndType and
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setSecondEndType methods. Their size can be defined using the
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setFirstEndLength and setSecondEndLength methods. Please note ends are not
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drawn if the required length for their drawing is longer than the line itself.
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In case there is room for a single end only, the first one get priority.
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*/
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class PartLine : public QGraphicsLineItem, public CustomElementGraphicPart {
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// constructors, destructor
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public:
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PartLine(QETElementEditor *, QGraphicsItem * = 0, QGraphicsScene * = 0);
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virtual ~PartLine();
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private:
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PartLine(const PartLine &);
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// attributes
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private:
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QET::EndType first_end;
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qreal first_length;
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QET::EndType second_end;
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qreal second_length;
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QList<QPointF> saved_points_;
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// methods
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public:
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enum { Type = UserType + 1104 };
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/**
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Enable the use of qgraphicsitem_cast to safely cast a QGraphicsItem into a
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PartLine.
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@return the QGraphicsItem type
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*/
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virtual int type() const { return Type; }
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virtual void paint(QPainter *, const QStyleOptionGraphicsItem *, QWidget * = 0);
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virtual QString name() const { return(QObject::tr("ligne", "element part name")); }
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virtual QString xmlName() const { return(QString("line")); }
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virtual const QDomElement toXml(QDomDocument &) const;
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virtual void fromXml(const QDomElement &);
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virtual QPointF sceneP1() const;
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virtual QPointF sceneP2() const;
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virtual QPainterPath shape() const;
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virtual QRectF boundingRect() const;
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virtual void setProperty(const QString &, const QVariant &);
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virtual QVariant property(const QString &);
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virtual bool isUseless() const;
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virtual QRectF sceneGeometricRect() const;
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virtual void startUserTransformation(const QRectF &);
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virtual void handleUserTransformation(const QRectF &, const QRectF &);
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virtual void setFirstEndType(const QET::EndType &);
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virtual QET::EndType firstEndType() const;
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virtual void setSecondEndType(const QET::EndType &);
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virtual QET::EndType secondEndType() const;
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virtual void setFirstEndLength(const qreal &);
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virtual qreal firstEndLength() const;
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virtual void setSecondEndLength(const qreal &);
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virtual qreal secondEndLength() const;
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static uint requiredLengthForEndType(const QET::EndType &);
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static QList<QPointF> fourEndPoints(const QPointF &, const QPointF &, const qreal &);
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protected:
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QVariant itemChange(GraphicsItemChange, const QVariant &);
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private:
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QList<QPointF> fourShapePoints() const;
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QRectF firstEndCircleRect() const;
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QRectF secondEndCircleRect() const;
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void debugPaint(QPainter *);
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};
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#endif
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