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160ccec733
git-svn-id: svn+ssh://svn.tuxfamily.org/svnroot/qet/qet/trunk@1960 bfdf4180-ca20-0410-9c96-a3a8aa849046
97 lines
3.1 KiB
C++
97 lines
3.1 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 ELEMENT_TEXT_ITEM_H
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#define ELEMENT_TEXT_ITEM_H
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#include "diagramtextitem.h"
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#include <QtXml>
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class Diagram;
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class Element;
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/**
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This class represents a text item attached to an element. Users can change its
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value, adjust its position (defined relatively to its parent element), and
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direct it to any angle.
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*/
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class ElementTextItem : public DiagramTextItem {
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Q_OBJECT
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// constructors, destructor
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public:
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ElementTextItem(Element * = 0, Diagram * = 0);
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ElementTextItem(const QString &, Element * = 0, Diagram * = 0);
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virtual ~ElementTextItem();
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// attributes
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public:
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enum { Type = UserType + 1003 };
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private:
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Element *parent_element_;
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bool follow_parent_rotations;
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QPointF original_position;
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qreal original_rotation_angle_;
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bool first_move_;
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// methods
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public:
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virtual int type() const { return Type; }
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Element *parentElement() const;
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/// @return the rectangle defining the bounds of this text item
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virtual QRectF boundingRect() const { return(QGraphicsTextItem::boundingRect().adjusted(0.0, -1.1, 0.0, 0.0)); }
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bool followParentRotations() const;
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void setFollowParentRotations(bool);
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void fromXml(const QDomElement &);
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QDomElement toXml(QDomDocument &) const;
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void setPos(const QPointF &);
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void setPos(qreal, qreal);
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virtual QPointF pos() const;
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void setOriginalPos(const QPointF &);
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QPointF originalPos() const;
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void setOriginalRotationAngle(const qreal &);
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qreal originalRotationAngle() const;
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virtual void setFont(const QFont &);
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public slots:
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void adjustItemPosition(int = 0);
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protected:
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virtual void applyRotation(const qreal &);
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virtual void mousePressEvent(QGraphicsSceneMouseEvent *);
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virtual void mouseMoveEvent(QGraphicsSceneMouseEvent *);
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virtual void mouseReleaseEvent(QGraphicsSceneMouseEvent *);
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};
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/**
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Element text items can optionally be applied a counter-rotation when their
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parent element is rotated, thus preserving their readability.
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@return whether this text item follows the rotations of its parent element.
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*/
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inline bool ElementTextItem::followParentRotations() const {
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return(follow_parent_rotations);
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}
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/**
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Element text items can optionally be applied a counter-rotation when their
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parent element is rotated, thus preserving their readability.
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@param frp whether this text item should follow the rotations of its parent
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element.
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*/
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inline void ElementTextItem::setFollowParentRotations(bool frp) {
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follow_parent_rotations = frp;
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}
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#endif
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