qetgraphicsitem.h

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/*
        Copyright 2006-2026 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 QETGRAPHICSITEM_H
#define QETGRAPHICSITEM_H
 
#include "../qet.h"
 
#include <QGraphicsObject>
 
class Diagram;
 
class QetGraphicsItem : public QGraphicsObject
{
        Q_OBJECT
 
        public :
                static void showItem (QetGraphicsItem *item);
 
        public:
                //constructor destructor
                QetGraphicsItem(QGraphicsItem *parent = nullptr);
                ~QetGraphicsItem() override = 0;
 
                //public method
                Diagram *diagram () const;
                virtual void setPos (const QPointF &p);
                virtual void setPos (qreal x, qreal y);
 
                virtual bool isMovable () const
{return is_movable_;}
                virtual void setMovable (bool movable) { is_movable_ = movable;}
 
                bool isHovered() const;
                QPointF hoverMousePos() const;
 
                virtual void editProperty () {}
                virtual QString name ()const
{return QString("");}
                
                QET::GraphicsItemState state() const;
 
        //protected method
        protected:
                void mousePressEvent(QGraphicsSceneMouseEvent *event) override;
                void mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event) override;
                void mouseMoveEvent(QGraphicsSceneMouseEvent *event) override;
                void mouseReleaseEvent(QGraphicsSceneMouseEvent *event) override;
                void hoverEnterEvent(QGraphicsSceneHoverEvent *event) override;
                void hoverMoveEvent(QGraphicsSceneHoverEvent *event) override;
                void hoverLeaveEvent(QGraphicsSceneHoverEvent *event) override;
 
        protected:
                bool is_movable_;
                bool m_first_move;
                bool snap_to_grid_;
                QPointF m_mouse_to_origin_movement;
                QET::GraphicsItemState m_state = QET:: GIOK;
 
        private:
                bool m_hovered{false};
                QPointF m_mouse_hover_pos;
 
};
 
#endif // QETGRAPHICSITEM_H