customelementpart.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 CUSTOM_ELEMENT_PART_H
#define CUSTOM_ELEMENT_PART_H
 
#include "qet.h"
 
class CustomElement;
class ElementPrimitiveDecorator;
class ElementScene;
class QETElementEditor;
class QUndoStack;
class QGraphicsItem;
class QGraphicsSceneMouseEvent;
 
class CustomElementPart {
        // constructors, destructor
        public:
        CustomElementPart(QETElementEditor *editor) : element_editor(editor) {}
        virtual ~CustomElementPart() {}
        
        private:
        CustomElementPart(const CustomElementPart &);
        
        // attributes
        private:
        QETElementEditor *element_editor;
        
        // methods
        public:
        virtual void fromXml(const QDomElement &) = 0;
        virtual const QDomElement toXml(QDomDocument &) const = 0;
        virtual void setProperty(const char *name, const QVariant &value) = 0;
        virtual QVariant property(const char *name) const = 0;
        virtual bool isUseless() const = 0;
        virtual QRectF sceneGeometricRect() const = 0;
        virtual void startUserTransformation(const QRectF &) = 0;
        virtual void handleUserTransformation(const QRectF &,
                                              const QRectF &) = 0;
        virtual QETElementEditor *elementEditor() const;
        virtual void updateCurrentPartEditor() const;
        virtual ElementScene *elementScene() const;
        virtual QUndoStack &undoStack() const;
        virtual QString name() const = 0;
        virtual QString xmlName() const = 0;
        
        virtual QGraphicsItem *toItem();
        
        virtual QET::ScalingMethod preferredScalingMethod() const;
        
        protected:
        QList<QPointF> mapPoints(
                        const QRectF &,
                        const QRectF &,
                        const QList<QPointF> &);
};
#endif