partrectangle.h

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/*
        Copyright 2006-2024 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 PART_RECTANGLE_H
#define PART_RECTANGLE_H
 
#include "customelementgraphicpart.h"
 
class QetGraphicsHandlerItem;
 
class PartRectangle :  public CustomElementGraphicPart
{
                Q_OBJECT
 
                Q_PROPERTY(QRectF rect READ rect WRITE setRect)
                Q_PROPERTY(qreal xRadius READ XRadius WRITE setXRadius NOTIFY XRadiusChanged)
                Q_PROPERTY(qreal yRadius READ YRadius WRITE setYRadius NOTIFY YRadiusChanged)
                Q_PROPERTY(qreal rotation READ rotation WRITE setRotation NOTIFY rotationChanged)
 
                // constructors, destructor
        public:
                PartRectangle(QETElementEditor *, QGraphicsItem *parent = nullptr);
                ~PartRectangle() override;
        
        private:
                PartRectangle(const PartRectangle &);
 
        signals:
                void rectChanged();
                void XRadiusChanged();
                void YRadiusChanged();
                void rotationChanged();
        
                // methods
        public:
                enum { Type = UserType + 1109 };
                int     type  () const override { return Type; }
                void    paint (QPainter *, const QStyleOptionGraphicsItem *, QWidget * = nullptr) override;
                QString name  () const override { return(QObject::tr("rectangle", "element part name")); }
 
                QString           xmlName () const override { return(QString("rect")); }
                const QDomElement toXml   (QDomDocument &) const override;
                void              fromXml (const QDomElement &) override;
 
                QRectF rect() const;
                void   setRect(const QRectF &rect);
                qreal XRadius() const {return m_xRadius;}
                void setXRadius(qreal X);
                qreal YRadius() const {return m_yRadius;}
                void setYRadius(qreal Y);
                void setRotation(qreal angle);
                qreal rotation() const;
 
                QRectF  sceneGeometricRect() const override;
                virtual QPointF sceneTopLeft() const;
 
                QPainterPath shape () const override;
                QPainterPath shadowShape() const override;
                QRectF boundingRect() const override;
                bool   isUseless() const override;
 
                void startUserTransformation(const QRectF &) override;
                void handleUserTransformation(const QRectF &, const QRectF &) override;
 
                void addHandler() override;
                void removeHandler() override;
 
        protected:
                void mouseReleaseEvent(QGraphicsSceneMouseEvent *event) override;
                QVariant itemChange(GraphicsItemChange change, const QVariant &value) override;
                bool sceneEventFilter(QGraphicsItem *watched, QEvent *event) override;
 
        private:
                void switchResizeMode();
                void adjusteHandlerPos();
                void handlerMousePressEvent   (QetGraphicsHandlerItem *qghi, QGraphicsSceneMouseEvent *event);
                void handlerMouseMoveEvent    (QetGraphicsHandlerItem *qghi, QGraphicsSceneMouseEvent *event);
                void handlerMouseReleaseEvent (QetGraphicsHandlerItem *qghi, QGraphicsSceneMouseEvent *event);
        
        private:
                QRectF m_rect,
                           m_old_rect;
                QList<QPointF> saved_points_;
                int m_resize_mode = 1,
                        m_vector_index = -1;
                QVector<QetGraphicsHandlerItem *> m_handler_vector;
                qreal m_xRadius = 0,
                          m_yRadius = 0,
                          m_old_xRadius,
                          m_old_yRadius;
                bool m_modifie_radius_equaly = false;
                qreal m_rot;
};
#endif