cometsitem.cpp

/*
    SPDX-FileCopyrightText: 2016 Artem Fedoskin <afedoskin3@gmail.com>
    SPDX-License-Identifier: GPL-2.0-or-later
*/
 
#include "cometsitem.h"
 
#include "Options.h"
#include "projections/projector.h"
#include "kscomet.h"
 
#include "rootnode.h"
#include "labelsitem.h"
#include "skylabeler.h"
 
#include "skynodes/pointsourcenode.h"
 
CometsItem::CometsItem(const QList<SkyObject *> &cometsList, RootNode *rootNode)
    : SkyItem(LabelsItem::label_t::COMET_LABEL, rootNode), m_cometsList(cometsList)
{
    recreateList();
}
 
void CometsItem::update()
{
    if (Options::zoomFactor() < 10 * MINZOOM)
    {
        hide();
        return;
    }
 
    show();
 
    bool hideLabel = !Options::showCometNames() || (SkyMapLite::Instance()->isSlewing() && Options::hideLabels());
 
    if (hideLabel)
    {
        hideLabels();
    }
    double rsunLabelLimit = Options::maxRadCometName();
 
    /*//FIXME: Should these be config'able?
    skyp->setPen( QPen( QColor( "darkcyan" ) ) );
    skyp->setBrush( QBrush( QColor( "darkcyan" ) ) );*/
 
    //Traverse all children nodes
    QSGNode *n = firstChild();
    while (n != 0)
    {
        SkyNode *skyNode = static_cast<SkyNode *>(n);
        n                = n->nextSibling();
 
        //TODO: Might be better move it to PointSourceNode
        KSComet *com = static_cast<KSComet *>(skyNode->skyObject());
        double mag   = com->mag();
        if (std::isnan(mag) == 0)
        {
            bool drawLabel = false;
            if (!(hideLabel || com->rsun() >= rsunLabelLimit))
            {
                drawLabel = true;
            }
            skyNode->update(drawLabel);
        }
        else
        {
            skyNode->hide();
        }
    }
}
 
void CometsItem::recreateList()
{
    //Delete all child nodes
    while (QSGNode *n = firstChild())
    {
        removeChildNode(n);
        delete n;
    }
 
    foreach (SkyObject *comet, m_cometsList)
    {
        KSComet *com = static_cast<KSComet *>(comet);
        appendChildNode(new PointSourceNode(com, rootNode(), labelType()));
    }
}