elementtextsmover.h

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/*
        Copyright 2006-2020 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 ELEMENT_TEXTS_MOVER_H
#define ELEMENT_TEXTS_MOVER_H
 
#include <QSet>
#include <QPointF>
 
class QGraphicsItem;
class DiagramTextItem;
class Diagram;
class QGraphicsItemGroup;
class QGraphicsSceneMouseEvent;
 
class ElementTextsMover
{
        public:
                ElementTextsMover();
        private:
                ElementTextsMover(const ElementTextsMover &);
        
        public:
                bool isReady() const;
                int  beginMovement(Diagram *diagram, QGraphicsItem *driver_item = nullptr);
                void continueMovement(QGraphicsSceneMouseEvent *event);
                void endMovement();
                
        private:
                QString undoText() const;
        
        private:
                bool m_movement_running = false;
                Diagram *m_diagram = nullptr;
                QGraphicsItem *m_movement_driver = nullptr;
                QHash <DiagramTextItem *, QPointF> m_texts_hash;
                QHash <QGraphicsItemGroup *, QPointF> m_grps_hash;
                QHash <QGraphicsItem *, QPointF> m_items_hash;
                int m_text_count = 0,
                        m_group_count = 0;
};
#endif