qelectrotech-source-mirror/sources/qetgraphicsitem/conductortextitem.h

/*
	Copyright 2006-2014 The QElectroTech Team
	This file is part of QElectroTech.
	
	QElectroTech is free software: you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation, either version 2 of the License, or
	(at your option) any later version.
	
	QElectroTech is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	GNU General Public License for more details.
	
	You should have received a copy of the GNU General Public License
	along with QElectroTech.  If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef CONDUCTOR_TEXT_ITEM_H
#define CONDUCTOR_TEXT_ITEM_H
#include "diagramtextitem.h"
class Conductor;
/**
	This class represents a text item attached to a parent conductor.
	It may be moved and edited by users.
	It may also be rotated to any angle.
	Its movements are however limited to a particular distance around its
	parent conductor.
*/
class ConductorTextItem : public DiagramTextItem {
	Q_OBJECT
	
	// constructors, destructor
	public:
	ConductorTextItem(Conductor * = 0, Diagram * = 0);
	ConductorTextItem(const QString &, Conductor * = 0, Diagram * = 0);
	virtual ~ConductorTextItem();
	private:
	ConductorTextItem(const ConductorTextItem &);
	
	// attributes
	public:
	enum { Type = UserType + 1006 };
	Conductor *parentConductor() const;
	virtual void fromXml(const QDomElement &);
	virtual void toXml  (QDomElement &xml) const;
	
	// methods
	public:
	virtual int type() const { return Type; }
	virtual bool wasMovedByUser() const;
	virtual bool wasRotateByUser() const;
	virtual void forceMovedByUser(bool);
	virtual void forceRotateByUser(bool);
	
	protected:
	virtual void mousePressEvent   (QGraphicsSceneMouseEvent *event);
	virtual void mouseMoveEvent    (QGraphicsSceneMouseEvent *event);
	virtual void mouseReleaseEvent (QGraphicsSceneMouseEvent *event);
	
	// attributes
	private:
	Conductor *parent_conductor_;
	bool moved_by_user_;
	bool rotate_by_user_;
	QPointF before_mov_pos_;
};
#endif