reportelement.cpp

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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/>.
*/
#include "reportelement.h"
#include "diagramposition.h"
#include "qetproject.h"
#include "diagram.h"
#include "terminal.h"
#include "conductor.h"
#include "dynamicelementtextitem.h"

ReportElement::ReportElement(const ElementsLocation &location, const QString& link_type,QGraphicsItem *qgi, int *state) :
    Element(location, qgi, state,
            link_type == "next_report"? Element::NextReport : Element::PreviousReport),
    m_inverse_report(link_type == "next_report"? Element::PreviousReport : Element::NextReport)
{}

ReportElement::~ReportElement()
{
    unlinkAllElements();
    if (terminals().size())
        disconnect(terminals().first(), nullptr, nullptr, nullptr);
}

void ReportElement::linkToElement(Element * elmt)
{
    if (!diagram() && !elmt -> diagram())
    {
        qDebug() << "ReportElement : linkToElement : Unable to link this or element to link isn't in a diagram";
        return;
    }

        //ensure elmt isn't already linked
    bool i = true;
    if (!this -> isFree() && (connected_elements.first() == elmt))
        i = false;

        //ensure elmt is an inverse report of this element
    if ((elmt->linkType() == m_inverse_report) && i)
    {
        unlinkAllElements();
        connected_elements << elmt;
        elmt->linkToElement(this);
        emit linkedElementChanged();
    }
}

void ReportElement::unlinkAllElements()
{
    if (isFree())
        return;

    const QList <Element *> tmp_elmt = connected_elements;

    for (Element *elmt : tmp_elmt)
        connected_elements.removeAll(elmt);

    for(Element *elmt : tmp_elmt)
    {
        elmt -> setHighlighted(false);
        elmt -> unlinkAllElements();
    }
    
    emit linkedElementChanged();
}
void ReportElement::unlinkElement(Element *elmt) {
    Q_UNUSED (elmt);
    unlinkAllElements();
}