File indexing completed on 2024-07-14 07:17:20

0001 /*
0002     SPDX-FileCopyrightText: 2005 Thomas Kabelmann <thomas.kabelmann@gmx.de>
0003 
0004     SPDX-License-Identifier: GPL-2.0-or-later
0005 */
0006 
0007 #include "constellationnamescomponent.h"
0008 
0009 #include "ksfilereader.h"
0010 #include "kstarsdata.h"
0011 #include "Options.h"
0012 #include "skylabeler.h"
0013 #ifndef KSTARS_LITE
0014 #include "skymap.h"
0015 #endif
0016 #include "projections/projector.h"
0017 #include "skycomponents/culturelist.h"
0018 
0019 #include <QtConcurrent>
0020 
0021 ConstellationNamesComponent::ConstellationNamesComponent(SkyComposite *parent, CultureList *cultures)
0022     : ListComponent(parent)
0023 {
0024     QtConcurrent::run(this, &ConstellationNamesComponent::loadData, cultures);
0025 }
0026 
0027 void ConstellationNamesComponent::loadData(CultureList *cultures)
0028 {
0029     uint i       = 0;
0030     bool culture = false;
0031     KSFileReader fileReader;
0032     QString cultureName;
0033 
0034     if (!fileReader.open("cnames.dat"))
0035         return;
0036 
0037     emitProgressText(i18n("Loading constellation names"));
0038 
0039     localCNames = Options::useLocalConstellNames();
0040 
0041     while (fileReader.hasMoreLines())
0042     {
0043         QString line, name, abbrev;
0044         int rah, ram, ras, dd, dm, ds;
0045         QChar sgn, mode;
0046 
0047         line = fileReader.readLine();
0048 
0049         mode = line.at(0);
0050         if (mode == 'C')
0051         {
0052             cultureName = line.mid(2).trimmed();
0053             culture     = cultureName == cultures->current();
0054             i++;
0055             continue;
0056         }
0057 
0058         if (culture)
0059         {
0060             rah = line.midRef(0, 2).toInt();
0061             ram = line.midRef(2, 2).toInt();
0062             ras = line.midRef(4, 2).toInt();
0063 
0064             sgn = line.at(6);
0065             dd  = line.midRef(7, 2).toInt();
0066             dm  = line.midRef(9, 2).toInt();
0067             ds  = line.midRef(11, 2).toInt();
0068 
0069             abbrev = line.mid(13, 3);
0070             name   = line.mid(17).trimmed();
0071 
0072             if (Options::useLocalConstellNames())
0073                 name = i18nc("Constellation name (optional)", name.toLocal8Bit().data());
0074 
0075             dms r;
0076             r.setH(rah, ram, ras);
0077             dms d(dd, dm, ds);
0078 
0079             if (sgn == '-')
0080                 d.setD(-1.0 * d.Degrees());
0081 
0082             SkyObject *o = new SkyObject(SkyObject::CONSTELLATION, r, d, 0.0, name, abbrev);
0083             o->EquatorialToHorizontal(KStarsData::Instance()->lst(), KStarsData::Instance()->geo()->lat());
0084             appendListObject(o);
0085 
0086             //Add name to the list of object names
0087             objectNames(SkyObject::CONSTELLATION).append(name);
0088             objectLists(SkyObject::CONSTELLATION).append(QPair<QString, const SkyObject *>(name, o));
0089         }
0090     }
0091 }
0092 
0093 bool ConstellationNamesComponent::selected()
0094 {
0095 #ifndef KSTARS_LITE
0096     return Options::showCNames() && !(Options::hideOnSlew() && Options::hideCNames() && SkyMap::IsSlewing());
0097 #else
0098     return Options::showCNames() && !(Options::hideOnSlew() && Options::hideCNames() && SkyMapLite::IsSlewing());
0099 #endif
0100 }
0101 
0102 // Don't precess the location of the names
0103 void ConstellationNamesComponent::update(KSNumbers *)
0104 {
0105     if (!selected())
0106         return;
0107     KStarsData *data = KStarsData::Instance();
0108     foreach (SkyObject *o, m_ObjectList)
0109         o->EquatorialToHorizontal(data->lst(), data->geo()->lat());
0110 }
0111 
0112 void ConstellationNamesComponent::draw(SkyPainter *skyp)
0113 {
0114     Q_UNUSED(skyp);
0115 #ifndef KSTARS_LITE
0116     if (!selected())
0117         return;
0118 
0119     const Projector *proj  = SkyMap::Instance()->projector();
0120     SkyLabeler *skyLabeler = SkyLabeler::Instance();
0121     //skyLabeler->useStdFont();
0122     // Subjective change, but constellation names really need to stand out against everything else
0123     skyLabeler->setFont(QFont("Arial", 14));
0124     skyLabeler->setPen(QColor(KStarsData::Instance()->colorScheme()->colorNamed("CNameColor")));
0125 
0126     QString name;
0127     foreach (SkyObject *p, m_ObjectList)
0128     {
0129         if (!proj->checkVisibility(p))
0130             continue;
0131 
0132         bool visible = false;
0133         QPointF o    = proj->toScreen(p, false, &visible);
0134         if (!visible || !proj->onScreen(o))
0135             continue;
0136 
0137         if (Options::useLatinConstellNames() || Options::useLocalConstellNames())
0138             name = p->name();
0139         else
0140             name = p->name2();
0141 
0142         o.setX(o.x() - 5.0 * name.length());
0143         skyLabeler->drawGuideLabel(o, name, 0.0);
0144     }
0145 
0146     skyLabeler->resetFont();
0147 #endif
0148 }