partarc.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_ARC_H
#define PART_ARC_H
 
#include "abstractpartellipse.h"
 
class QPropertyUndoCommand;
class QetGraphicsHandlerItem;
 
class PartArc : public AbstractPartEllipse
{
                Q_OBJECT
 
        public:
                PartArc(QETElementEditor *editor, QGraphicsItem *parent = nullptr);
                ~PartArc() override;
        
        private:
                PartArc(const PartArc &);
                // methods
        public:
                enum { Type = UserType + 1101 };
                int type() const override { return Type; }
                void paint(QPainter *, const QStyleOptionGraphicsItem *, QWidget * = nullptr) override;
 
                        //Name and XML
                QString name()    const override { return(QObject::tr("arc", "element part name")); }
                QString xmlName() const override { return(QString("arc")); }
                const QDomElement toXml   (QDomDocument &) const override;
                void              fromXml (const QDomElement &) override;
 
                QPainterPath shape() const override;
                QPainterPath shadowShape() const override;
                void setRect(const QRectF &rect) override {AbstractPartEllipse::setRect(rect); adjusteHandlerPos();}
                void setStartAngle(const int &start_angle) override {AbstractPartEllipse::setStartAngle(start_angle); adjusteHandlerPos();}
                void setSpanAngle(const int &span_angle) override {AbstractPartEllipse::setSpanAngle(span_angle); adjusteHandlerPos();}
                QRectF sceneGeometricRect() const 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:
                QPropertyUndoCommand *m_undo_command = nullptr;
                QPropertyUndoCommand *m_undo_command2 = nullptr;
                int m_resize_mode = 1,
                        m_vector_index = -1;
                QPointF m_span_point;
                QVector<QetGraphicsHandlerItem *> m_handler_vector;
};
#endif