masterelement.h

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/*
    Copyright 2006-2019 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 MASTERELEMENT_H
#define MASTERELEMENT_H

#include "element.h"

class CrossRefItem;

class MasterElement : public Element
{
    Q_OBJECT
    
    public:
        explicit MasterElement(const ElementsLocation &, QGraphicsItem * = nullptr, int * = nullptr);
        ~MasterElement() override;

        void linkToElement     (Element *elmt) override;
        void unlinkAllElements () override;
        void unlinkElement     (Element *elmt) override;
        void initLink          (QETProject *project) override;
        QRectF XrefBoundingRect() const;
        
    protected:
        QVariant itemChange(GraphicsItemChange change, const QVariant &value) override;

    private:
        void xrefPropertiesChanged();
        void aboutDeleteXref ();

    private:
        CrossRefItem *m_Xref_item = nullptr;
        bool m_first_scene_change = true;
};

#endif // MASTERELEMENT_H