constellationnamesitem.cpp

/*
    SPDX-FileCopyrightText: 2016 Artem Fedoskin <afedoskin3@gmail.com>
 
    SPDX-License-Identifier: GPL-2.0-or-later
*/
 
#include "constellationnamesitem.h"
 
#include "constellationnamescomponent.h"
#include "labelsitem.h"
#include "Options.h"
#include "rootnode.h"
#include "skymaplite.h"
#include "projections/projector.h"
#include "skynodes/labelnode.h"
 
ConstellationName::ConstellationName(SkyObject *skyObj) : obj(skyObj), latin(0), secondary(0)
{
}
 
void ConstellationName::hide()
{
    if (latin)
        latin->hide();
    if (secondary)
        secondary->hide();
}
 
ConstellationNamesItem::ConstellationNamesItem(ConstellationNamesComponent *constComp, RootNode *parent)
    : SkyItem(LabelsItem::label_t::CONSTEL_NAME_LABEL, parent), m_constelNamesComp(constComp)
{
    recreateList();
}
 
void ConstellationNamesItem::update()
{
    if (!m_constelNamesComp->selected())
    {
        hide();
        rootNode()->labelsItem()->hideLabels(labelType());
        return;
    }
 
    show();
 
    const Projector *proj = SkyMapLite::Instance()->projector();
 
    foreach (ConstellationName *constName, m_names)
    {
        SkyObject *p = constName->obj;
        if (!proj->checkVisibility(p))
        {
            constName->hide();
            continue;
        }
 
        bool visible = false;
        QPointF o    = proj->toScreen(p, false, &visible);
        if (!visible || !proj->onScreen(o))
        {
            constName->hide();
            continue;
        }
 
        QString name;
 
        if (Options::useLatinConstellNames() || Options::useLocalConstellNames())
        {
            name = p->name();
 
            if (!constName->latin)
            {
                constName->latin = rootNode()->labelsItem()->addLabel(name, labelType());
            }
 
            o.setX(o.x() - 5.0 * name.length());
 
            constName->latin->setLabelPos(o);
            if (constName->secondary)
                constName->secondary->hide();
        }
        else
        {
            name = p->name2();
 
            if (!constName->secondary)
            {
                constName->secondary = rootNode()->labelsItem()->addLabel(name, labelType());
            }
 
            o.setX(o.x() - 5.0 * name.length());
 
            constName->secondary->setLabelPos(o);
            if (constName->latin)
                constName->latin->hide();
        }
    }
}
 
void ConstellationNamesItem::recreateList()
{
    rootNode()->labelsItem()->deleteLabels(labelType());
    m_names.clear();
 
    foreach (SkyObject *skyObj, m_constelNamesComp->objectList())
    {
        m_names.append(new ConstellationName(skyObj));
    }
}