customelementgraphicpart.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 CUSTOM_ELEMENT_GRAPHIC_PART_H
#define CUSTOM_ELEMENT_GRAPHIC_PART_H

#include <QGraphicsObject>
#include "customelementpart.h"

class QETElementEditor;
class QPainter;


class CustomElementGraphicPart : public QGraphicsObject, public CustomElementPart
{
        #define SHADOWS_HEIGHT 4.0

        Q_OBJECT

        Q_PROPERTY(LineStyle line_style   READ lineStyle   WRITE setLineStyle)
        Q_PROPERTY(LineWeight line_weight READ lineWeight  WRITE setLineWeight)
        Q_PROPERTY(Filling filling        READ filling     WRITE setFilling)
        Q_PROPERTY(Color color            READ color       WRITE setColor)
        Q_PROPERTY(bool antialias         READ antialiased WRITE setAntialiased)

    public:
            //Line style
        enum LineStyle {NormalStyle, DashedStyle, DottedStyle, DashdottedStyle};
        Q_ENUM (LineStyle)

            //Line weight : invisible, 0px, 1px, 2px, 5px
        enum LineWeight {NoneWeight, ThinWeight, NormalWeight, UltraWeight, BigWeight};
        Q_ENUM (LineWeight)

            //Filling color of the part : NoneFilling -> No filling (i.e. transparent)
        enum Filling { NoneFilling, BlackFilling, WhiteFilling, GreenFilling, RedFilling, BlueFilling, GrayFilling, BrunFilling, YellowFilling, CyanFilling, MagentaFilling, LightgrayFilling, OrangeFilling, PurpleFilling, HorFilling, VerFilling, BdiagFilling, FdiagFilling};
        Q_ENUM (Filling)

            //Line color
        enum Color {BlackColor, WhiteColor, GreenColor, RedColor, BlueColor, GrayColor, BrunColor, YellowColor, CyanColor, MagentaColor, LightgrayColor, OrangeColor, PurpleColor, NoneColor};
        Q_ENUM (Color)

        // constructors, destructor
    public:

        CustomElementGraphicPart(QETElementEditor *editor, QGraphicsItem *parent = nullptr);
        ~CustomElementGraphicPart() override;

        static void drawCross (const QPointF &center, QPainter *painter);

            //Getter and setter
        LineStyle lineStyle    () const {return _linestyle;}
        void      setLineStyle (const LineStyle ls);

        LineWeight lineWeight    () const {return _lineweight;}
        void       setLineWeight (const LineWeight lw);
        qreal      penWeight     () const;

        Filling filling   () const {return _filling;}
        void    setFilling(const Filling f);

        Color color   () const {return _color;}
        void  setColor(const Color c);

        bool antialiased   () const {return _antialiased;}
        void setAntialiased(const bool b);
            //End of getter and setter


            //Rediriged to QObject Q_PROPERTY system
        void     setProperty (const char *name, const QVariant &value) override {QObject::setProperty(name, value);}
        QVariant property    (const char *name) const override                  {return QObject::property(name);}

        virtual QPainterPath shadowShape ()const = 0;

    protected:
        void stylesToXml  (QDomElement &) const;
        void stylesFromXml(const QDomElement &);
        void resetStyles  ();
        void applyStylesToQPainter(QPainter &) const;
        void drawShadowShape (QPainter *painter);

        QVariant itemChange(GraphicsItemChange change, const QVariant &value) override;
        void hoverEnterEvent(QGraphicsSceneHoverEvent *event) override;
        void hoverLeaveEvent(QGraphicsSceneHoverEvent *event) override;

        void mousePressEvent(QGraphicsSceneMouseEvent *event) override;
        void mouseMoveEvent(QGraphicsSceneMouseEvent *event) override;
        void mouseReleaseEvent(QGraphicsSceneMouseEvent *event) override;

        // attributes
        bool m_hovered;
    private:
        LineStyle _linestyle;
        LineWeight _lineweight;
        Filling _filling ;
        Color _color;
        bool _antialiased;
        QPointF m_origin_pos;
};

typedef CustomElementGraphicPart CEGP;
#endif