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Committed by Alexander V. Wolf

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Special patch for John Simple

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/src/core/modules/NebulaMgr.cpp

﻿/*
 * Stellarium
 * Copyright (C) 2002 Fabien Chereau
 * Copyright (C) 2011 Alexander Wolf
 * Copyright (C) 2015 Georg Zotti
 *
 * This program 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.
 *
 * This program 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 this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA  02110-1335, USA.
 */

// class used to manage groups of Nebulas

#include "StelApp.hpp"
#include "NebulaList.hpp"
#include "NebulaMgr.hpp"
#include "Nebula.hpp"
#include "StelTexture.hpp"
#include "StelUtils.hpp"
#include "StelSkyDrawer.hpp"
#include "StelTranslator.hpp"
#include "StelTextureMgr.hpp"
#include "StelObjectMgr.hpp"
#include "StelLocaleMgr.hpp"
#include "StelSkyCultureMgr.hpp"
#include "StelFileMgr.hpp"
#include "StelModuleMgr.hpp"
#include "StelCore.hpp"
#include "StelPainter.hpp"

#include <algorithm>
#include <vector>
#include <QDebug>
#include <QFile>
#include <QSettings>
#include <QString>
#include <QStringList>
#include <QRegularExpression>
#include <QDir>
#include <QMessageBox>

// Define version of valid Stellarium DSO Catalog
// This number must be incremented each time the content or file format of the stars catalogs change
static const QString StellariumDSOCatalogVersion = "3.19";

void NebulaMgr::setLabelsColor(const Vec3f& c) {Nebula::labelColor = c; emit labelsColorChanged(c);}
const Vec3f NebulaMgr::getLabelsColor(void) const {return Nebula::labelColor;}
void NebulaMgr::setCirclesColor(const Vec3f& c) {Nebula::hintColorMap.insert(Nebula::NebUnknown, c); emit circlesColorChanged(c); }
const Vec3f NebulaMgr::getCirclesColor(void) const {return Nebula::hintColorMap.value(Nebula::NebUnknown);}
void NebulaMgr::setRegionsColor(const Vec3f& c) {Nebula::hintColorMap.insert(Nebula::NebRegion, c); emit regionsColorChanged(c); }
const Vec3f NebulaMgr::getRegionsColor(void) const {return Nebula::hintColorMap.value(Nebula::NebRegion);}
void NebulaMgr::setGalaxyColor(const Vec3f& c) {Nebula::hintColorMap.insert(Nebula::NebGx, c); Nebula::hintColorMap.insert(Nebula::NebPartOfGx, c); emit galaxiesColorChanged(c); }
const Vec3f NebulaMgr::getGalaxyColor(void) const {return Nebula::hintColorMap.value(Nebula::NebGx);}
void NebulaMgr::setRadioGalaxyColor(const Vec3f& c) {Nebula::hintColorMap.insert(Nebula::NebRGx, c); emit radioGalaxiesColorChanged(c); }
const Vec3f NebulaMgr::getRadioGalaxyColor(void) const {return Nebula::hintColorMap.value(Nebula::NebRGx);}
void NebulaMgr::setActiveGalaxyColor(const Vec3f& c) {Nebula::hintColorMap.insert(Nebula::NebAGx, c); emit activeGalaxiesColorChanged(c); }
const Vec3f NebulaMgr::getActiveGalaxyColor(void) const {return Nebula::hintColorMap.value(Nebula::NebAGx);}
void NebulaMgr::setInteractingGalaxyColor(const Vec3f& c) {Nebula::hintColorMap.insert(Nebula::NebIGx, c); emit interactingGalaxiesColorChanged(c); }
const Vec3f NebulaMgr::getInteractingGalaxyColor(void) const {return Nebula::hintColorMap.value(Nebula::NebIGx);}
void NebulaMgr::setQuasarColor(const Vec3f& c) {Nebula::hintColorMap.insert(Nebula::NebQSO, c); emit quasarsColorChanged(c); }
const Vec3f NebulaMgr::getQuasarColor(void) const {return Nebula::hintColorMap.value(Nebula::NebQSO);}
void NebulaMgr::setNebulaColor(const Vec3f& c) {Nebula::hintColorMap.insert(Nebula::NebN, c); emit nebulaeColorChanged(c); }
const Vec3f NebulaMgr::getNebulaColor(void) const {return Nebula::hintColorMap.value(Nebula::NebN);}
void NebulaMgr::setPlanetaryNebulaColor(const Vec3f& c) {Nebula::hintColorMap.insert(Nebula::NebPn, c); emit planetaryNebulaeColorChanged(c);}
const Vec3f NebulaMgr::getPlanetaryNebulaColor(void) const {return Nebula::hintColorMap.value(Nebula::NebPn);}
void NebulaMgr::setReflectionNebulaColor(const Vec3f& c) {Nebula::hintColorMap.insert(Nebula::NebRn, c); emit reflectionNebulaeColorChanged(c);}
const Vec3f NebulaMgr::getReflectionNebulaColor(void) const {return Nebula::hintColorMap.value(Nebula::NebRn);}
void NebulaMgr::setBipolarNebulaColor(const Vec3f& c) {Nebula::hintColorMap.insert(Nebula::NebBn, c); emit bipolarNebulaeColorChanged(c);}
const Vec3f NebulaMgr::getBipolarNebulaColor(void) const {return Nebula::hintColorMap.value(Nebula::NebBn);}
void NebulaMgr::setEmissionNebulaColor(const Vec3f& c) {Nebula::hintColorMap.insert(Nebula::NebEn, c); emit emissionNebulaeColorChanged(c);}
const Vec3f NebulaMgr::getEmissionNebulaColor(void) const {return Nebula::hintColorMap.value(Nebula::NebEn);}
void NebulaMgr::setDarkNebulaColor(const Vec3f& c) {Nebula::hintColorMap.insert(Nebula::NebDn, c); emit darkNebulaeColorChanged(c);}
const Vec3f NebulaMgr::getDarkNebulaColor(void) const {return Nebula::hintColorMap.value(Nebula::NebDn);}
void NebulaMgr::setHydrogenRegionColor(const Vec3f& c) {Nebula::hintColorMap.insert(Nebula::NebHII, c); emit hydrogenRegionsColorChanged(c);}
const Vec3f NebulaMgr::getHydrogenRegionColor(void) const {return Nebula::hintColorMap.value(Nebula::NebHII);}
void NebulaMgr::setSupernovaRemnantColor(const Vec3f& c) {Nebula::hintColorMap.insert(Nebula::NebSNR, c); emit supernovaRemnantsColorChanged(c);}
const Vec3f NebulaMgr::getSupernovaRemnantColor(void) const {return Nebula::hintColorMap.value(Nebula::NebSNR);}
void NebulaMgr::setSupernovaCandidateColor(const Vec3f& c) {Nebula::hintColorMap.insert(Nebula::NebSNC, c); emit supernovaCandidatesColorChanged(c);}
const Vec3f NebulaMgr::getSupernovaCandidateColor(void) const {return Nebula::hintColorMap.value(Nebula::NebSNC);}
void NebulaMgr::setSupernovaRemnantCandidateColor(const Vec3f& c) {Nebula::hintColorMap.insert(Nebula::NebSNRC, c); emit supernovaRemnantCandidatesColorChanged(c);}
const Vec3f NebulaMgr::getSupernovaRemnantCandidateColor(void) const {return Nebula::hintColorMap.value(Nebula::NebSNRC);}
void NebulaMgr::setInterstellarMatterColor(const Vec3f& c) {Nebula::hintColorMap.insert(Nebula::NebISM, c); emit interstellarMatterColorChanged(c);}
const Vec3f NebulaMgr::getInterstellarMatterColor(void) const {return Nebula::hintColorMap.value(Nebula::NebISM);}
void NebulaMgr::setClusterColor(const Vec3f& c) {Nebula::hintColorMap.insert(Nebula::NebCl, c); emit clustersColorChanged(c);}
const Vec3f NebulaMgr::getClusterColor(void) const {return Nebula::hintColorMap.value(Nebula::NebCl);}
void NebulaMgr::setOpenClusterColor(const Vec3f& c) {Nebula::hintColorMap.insert(Nebula::NebOc, c); emit openClustersColorChanged(c);}
const Vec3f NebulaMgr::getOpenClusterColor(void) const {return Nebula::hintColorMap.value(Nebula::NebOc);}
void NebulaMgr::setGlobularClusterColor(const Vec3f& c) {Nebula::hintColorMap.insert(Nebula::NebGc, c); emit globularClustersColorChanged(c);}
const Vec3f NebulaMgr::getGlobularClusterColor(void) const {return Nebula::hintColorMap.value(Nebula::NebGc);}
void NebulaMgr::setStellarAssociationColor(const Vec3f& c) {Nebula::hintColorMap.insert(Nebula::NebSA, c); emit stellarAssociationsColorChanged(c);}
const Vec3f NebulaMgr::getStellarAssociationColor(void) const {return Nebula::hintColorMap.value(Nebula::NebSA);}
void NebulaMgr::setStarCloudColor(const Vec3f& c) {Nebula::hintColorMap.insert(Nebula::NebSC, c); emit starCloudsColorChanged(c);}
const Vec3f NebulaMgr::getStarCloudColor(void) const {return Nebula::hintColorMap.value(Nebula::NebSC);}
void NebulaMgr::setEmissionObjectColor(const Vec3f& c) {Nebula::hintColorMap.insert(Nebula::NebEMO, c); emit emissionObjectsColorChanged(c);}
const Vec3f NebulaMgr::getEmissionObjectColor(void) const {return Nebula::hintColorMap.value(Nebula::NebEMO);}
void NebulaMgr::setBlLacObjectColor(const Vec3f& c) {Nebula::hintColorMap.insert(Nebula::NebBLL, c); emit blLacObjectsColorChanged(c);}
const Vec3f NebulaMgr::getBlLacObjectColor(void) const {return Nebula::hintColorMap.value(Nebula::NebBLL);}
void NebulaMgr::setBlazarColor(const Vec3f& c) {Nebula::hintColorMap.insert(Nebula::NebBLA, c); emit blazarsColorChanged(c);}
const Vec3f NebulaMgr::getBlazarColor(void) const {return Nebula::hintColorMap.value(Nebula::NebBLA);}
void NebulaMgr::setMolecularCloudColor(const Vec3f& c) {Nebula::hintColorMap.insert(Nebula::NebMolCld, c); emit molecularCloudsColorChanged(c);}
const Vec3f NebulaMgr::getMolecularCloudColor(void) const {return Nebula::hintColorMap.value(Nebula::NebMolCld);}
void NebulaMgr::setYoungStellarObjectColor(const Vec3f& c) {Nebula::hintColorMap.insert(Nebula::NebYSO, c); emit youngStellarObjectsColorChanged(c);}
const Vec3f NebulaMgr::getYoungStellarObjectColor(void) const {return Nebula::hintColorMap.value(Nebula::NebYSO);}
void NebulaMgr::setPossibleQuasarColor(const Vec3f& c) {Nebula::hintColorMap.insert(Nebula::NebPossQSO, c); emit possibleQuasarsColorChanged(c);}
const Vec3f NebulaMgr::getPossibleQuasarColor(void) const {return Nebula::hintColorMap.value(Nebula::NebPossQSO);}
void NebulaMgr::setPossiblePlanetaryNebulaColor(const Vec3f& c) {Nebula::hintColorMap.insert(Nebula::NebPossPN, c); emit possiblePlanetaryNebulaeColorChanged(c);}
const Vec3f NebulaMgr::getPossiblePlanetaryNebulaColor(void) const {return Nebula::hintColorMap.value(Nebula::NebPossPN);}
void NebulaMgr::setProtoplanetaryNebulaColor(const Vec3f& c) {Nebula::hintColorMap.insert(Nebula::NebPPN, c); emit protoplanetaryNebulaeColorChanged(c);}
const Vec3f NebulaMgr::getProtoplanetaryNebulaColor(void) const {return Nebula::hintColorMap.value(Nebula::NebPPN);}
void NebulaMgr::setStarColor(const Vec3f& c) {Nebula::hintColorMap.insert(Nebula::NebStar, c); emit starsColorChanged(c);}
const Vec3f NebulaMgr::getStarColor(void) const {return Nebula::hintColorMap.value(Nebula::NebStar);}
void NebulaMgr::setSymbioticStarColor(const Vec3f& c) {Nebula::hintColorMap.insert(Nebula::NebSymbioticStar, c); emit symbioticStarsColorChanged(c);}
const Vec3f NebulaMgr::getSymbioticStarColor(void) const {return Nebula::hintColorMap.value(Nebula::NebSymbioticStar);}
void NebulaMgr::setEmissionLineStarColor(const Vec3f& c) {Nebula::hintColorMap.insert(Nebula::NebEmissionLineStar, c); emit emissionLineStarsColorChanged(c);}
const Vec3f NebulaMgr::getEmissionLineStarColor(void) const {return Nebula::hintColorMap.value(Nebula::NebEmissionLineStar);}
void NebulaMgr::setGalaxyClusterColor(const Vec3f& c) {Nebula::hintColorMap.insert(Nebula::NebGxCl, c); emit galaxyClustersColorChanged(c);}
const Vec3f NebulaMgr::getGalaxyClusterColor(void) const {return Nebula::hintColorMap.value(Nebula::NebGxCl);}
void NebulaMgr::setHintsProportional(const bool proportional) {if(Nebula::drawHintProportional!=proportional){ Nebula::drawHintProportional=proportional; emit hintsProportionalChanged(proportional);}}
bool NebulaMgr::getHintsProportional(void) const {return Nebula::drawHintProportional;}
void NebulaMgr::setDesignationUsage(const bool flag) {if(Nebula::designationUsage!=flag){ Nebula::designationUsage=flag; emit designationUsageChanged(flag);}}
bool NebulaMgr::getDesignationUsage(void) const {return Nebula::designationUsage; }
void NebulaMgr::setFlagOutlines(const bool flag) {if(Nebula::flagUseOutlines!=flag){ Nebula::flagUseOutlines=flag; emit flagOutlinesDisplayedChanged(flag);}}
bool NebulaMgr::getFlagOutlines(void) const {return Nebula::flagUseOutlines;}
void NebulaMgr::setFlagAdditionalNames(const bool flag) {if(Nebula::flagShowAdditionalNames!=flag){ Nebula::flagShowAdditionalNames=flag; emit flagAdditionalNamesDisplayedChanged(flag);}}
bool NebulaMgr::getFlagAdditionalNames(void) const {return Nebula::flagShowAdditionalNames;}

NebulaMgr::NebulaMgr(void) : StelObjectModule()
        , nebGrid(200)
        , hintsAmount(0)
        , labelsAmount(0)
        , flagConverter(false)
        , flagDecimalCoordinates(true)
{
        setObjectName("NebulaMgr");
}

NebulaMgr::~NebulaMgr()
{
        Nebula::texRegion = StelTextureSP();
        Nebula::texPointElement = StelTextureSP();
        Nebula::texPlanetaryNebula = StelTextureSP();
}

/*************************************************************************
 Reimplementation of the getCallOrder method
*************************************************************************/
double NebulaMgr::getCallOrder(StelModuleActionName actionName) const
{
        if (actionName==StelModule::ActionDraw)
                return StelApp::getInstance().getModuleMgr().getModule("MilkyWay")->getCallOrder(actionName)+10;
        return 0;
}

// read from stream
void NebulaMgr::init()
{
        QSettings* conf = StelApp::getInstance().getSettings();
        Q_ASSERT(conf);

        nebulaFont.setPixelSize(StelApp::getInstance().getScreenFontSize());
        connect(&StelApp::getInstance(), SIGNAL(screenFontSizeChanged(int)), SLOT(setFontSizeFromApp(int)));
    auto& texMan = StelApp::getInstance().getTextureManager();
        // Load dashed shape texture
        Nebula::texRegion                = texMan.createTexture(StelFileMgr::getInstallationDir()+"/textures/neb_reg.png");
        // Load open cluster marker texture
        Nebula::texPointElement                = texMan.createTexture(StelFileMgr::getInstallationDir()+"/textures/neb_point_elem.png");
        // Load planetary nebula marker texture
        Nebula::texPlanetaryNebula        = texMan.createTexture(StelFileMgr::getInstallationDir()+"/textures/neb_pnb.png");
        // Load pointer texture
        texPointer = texMan.createTexture(StelFileMgr::getInstallationDir()+"/textures/pointeur5.png");

        setFlagShow(conf->value("astro/flag_nebula",true).toBool());
        setFlagHints(conf->value("astro/flag_nebula_name",false).toBool());
        setHintsAmount(conf->value("astro/nebula_hints_amount", 3.0).toDouble());
        setLabelsAmount(conf->value("astro/nebula_labels_amount", 3.0).toDouble());
        setHintsProportional(conf->value("astro/flag_nebula_hints_proportional", false).toBool());
        setFlagOutlines(conf->value("astro/flag_dso_outlines_usage", false).toBool());
        setFlagAdditionalNames(conf->value("astro/flag_dso_additional_names",true).toBool());
        setDesignationUsage(conf->value("astro/flag_dso_designation_usage", false).toBool());
        setFlagSurfaceBrightnessUsage(conf->value("astro/flag_surface_brightness_usage", false).toBool());
        setFlagSurfaceBrightnessArcsecUsage(conf->value("gui/flag_surface_brightness_arcsec", false).toBool());
        setFlagSurfaceBrightnessShortNotationUsage(conf->value("gui/flag_surface_brightness_short", false).toBool());

        setFlagSizeLimitsUsage(conf->value("astro/flag_size_limits_usage", false).toBool());
        setMinSizeLimit(conf->value("astro/size_limit_min", 1.0).toDouble());
        setMaxSizeLimit(conf->value("astro/size_limit_max", 600.0).toDouble());

        // Load colors from config file
        // Upgrade config keys
        if (conf->contains("color/nebula_label_color"))
        {
                conf->setValue("color/dso_label_color", conf->value("color/nebula_label_color", "0.4,0.3,0.5").toString());
                conf->remove("color/nebula_label_color");
        }
        if (conf->contains("color/nebula_circle_color"))
        {
                conf->setValue("color/dso_circle_color", conf->value("color/nebula_circle_color", "0.8,0.8,0.1").toString());
                conf->remove("color/nebula_circle_color");
        }
        if (conf->contains("color/nebula_galaxy_color"))
        {
                conf->setValue("color/dso_galaxy_color", conf->value("color/nebula_galaxy_color", "1.0,0.2,0.2").toString());
                conf->remove("color/nebula_galaxy_color");
        }
        if (conf->contains("color/nebula_radioglx_color"))
        {
                conf->setValue("color/dso_radio_galaxy_color", conf->value("color/nebula_radioglx_color", "0.3,0.3,0.3").toString());
                conf->remove("color/nebula_radioglx_color");
        }
        if (conf->contains("color/nebula_activeglx_color"))
        {
                conf->setValue("color/dso_active_galaxy_color", conf->value("color/nebula_activeglx_color", "1.0,0.5,0.2").toString());
                conf->remove("color/nebula_activeglx_color");
        }
        if (conf->contains("color/nebula_intglx_color"))
        {
                conf->setValue("color/dso_interacting_galaxy_color", conf->value("color/nebula_intglx_color", "0.2,0.5,1.0").toString());
                conf->remove("color/nebula_intglx_color");
        }
        if (conf->contains("color/nebula_brightneb_color"))
        {
                conf->setValue("color/dso_nebula_color", conf->value("color/nebula_brightneb_color", "0.1,1.0,0.1").toString());
                conf->remove("color/nebula_brightneb_color");
        }
        if (conf->contains("color/nebula_darkneb_color"))
        {
                conf->setValue("color/dso_dark_nebula_color", conf->value("color/nebula_darkneb_color", "0.3,0.3,0.3").toString());
                conf->remove("color/nebula_darkneb_color");
        }
        if (conf->contains("color/nebula_hregion_color"))
        {
                conf->setValue("color/dso_hydrogen_region_color", conf->value("color/nebula_hregion_color", "0.1,1.0,0.1").toString());
                conf->remove("color/nebula_hregion_color");
        }
        if (conf->contains("color/nebula_snr_color"))
        {
                conf->setValue("color/dso_supernova_remnant_color", conf->value("color/nebula_snr_color", "0.1,1.0,0.1").toString());
                conf->remove("color/nebula_snr_color");
        }
        if (conf->contains("color/nebula_cluster_color"))
        {
                conf->setValue("color/dso_cluster_color", conf->value("color/nebula_cluster_color", "0.8,0.8,0.1").toString());
                conf->remove("color/nebula_cluster_color");
        }

        // Set colors for markers
        setLabelsColor(Vec3f(conf->value("color/dso_label_color", "0.2,0.6,0.7").toString()));
        setCirclesColor(Vec3f(conf->value("color/dso_circle_color", "1.0,0.7,0.2").toString()));
        setRegionsColor(Vec3f(conf->value("color/dso_region_color", "0.7,0.7,0.2").toString()));

        QString defaultGalaxyColor = conf->value("color/dso_galaxy_color", "1.0,0.2,0.2").toString();
        setGalaxyColor(           Vec3f(defaultGalaxyColor));
        setRadioGalaxyColor(      Vec3f(conf->value("color/dso_radio_galaxy_color", "0.3,0.3,0.3").toString()));
        setActiveGalaxyColor(     Vec3f(conf->value("color/dso_active_galaxy_color", "1.0,0.5,0.2").toString()));
        setInteractingGalaxyColor(Vec3f(conf->value("color/dso_interacting_galaxy_color", "0.2,0.5,1.0").toString()));
        setGalaxyClusterColor(    Vec3f(conf->value("color/dso_galaxy_cluster_color", "0.2,0.8,1.0").toString()));
        setQuasarColor(           Vec3f(conf->value("color/dso_quasar_color", defaultGalaxyColor).toString()));
        setPossibleQuasarColor(   Vec3f(conf->value("color/dso_possible_quasar_color", defaultGalaxyColor).toString()));
        setBlLacObjectColor(      Vec3f(conf->value("color/dso_bl_lac_color", defaultGalaxyColor).toString()));
        setBlazarColor(           Vec3f(conf->value("color/dso_blazar_color", defaultGalaxyColor).toString()));

        QString defaultNebulaColor = conf->value("color/dso_nebula_color", "0.1,1.0,0.1").toString();
        setNebulaColor(                   Vec3f(defaultNebulaColor));
        setPlanetaryNebulaColor(          Vec3f(conf->value("color/dso_planetary_nebula_color", defaultNebulaColor).toString()));
        setReflectionNebulaColor(         Vec3f(conf->value("color/dso_reflection_nebula_color", defaultNebulaColor).toString()));
        setBipolarNebulaColor(            Vec3f(conf->value("color/dso_bipolar_nebula_color", defaultNebulaColor).toString()));
        setEmissionNebulaColor(           Vec3f(conf->value("color/dso_emission_nebula_color", defaultNebulaColor).toString()));
        setDarkNebulaColor(               Vec3f(conf->value("color/dso_dark_nebula_color", "0.3,0.3,0.3").toString()));
        setHydrogenRegionColor(           Vec3f(conf->value("color/dso_hydrogen_region_color", defaultNebulaColor).toString()));
        setSupernovaRemnantColor(         Vec3f(conf->value("color/dso_supernova_remnant_color", defaultNebulaColor).toString()));
        setSupernovaCandidateColor(       Vec3f(conf->value("color/dso_supernova_candidate_color", defaultNebulaColor).toString()));
        setSupernovaRemnantCandidateColor(Vec3f(conf->value("color/dso_supernova_remnant_cand_color", defaultNebulaColor).toString()));
        setInterstellarMatterColor(       Vec3f(conf->value("color/dso_interstellar_matter_color", defaultNebulaColor).toString()));
        setMolecularCloudColor(           Vec3f(conf->value("color/dso_molecular_cloud_color", defaultNebulaColor).toString()));
        setPossiblePlanetaryNebulaColor(  Vec3f(conf->value("color/dso_possible_planetary_nebula_color", defaultNebulaColor).toString()));
        setProtoplanetaryNebulaColor(     Vec3f(conf->value("color/dso_protoplanetary_nebula_color", defaultNebulaColor).toString()));

        QString defaultClusterColor = conf->value("color/dso_cluster_color", "1.0,1.0,0.1").toString();
        setClusterColor(           Vec3f(defaultClusterColor));
        setOpenClusterColor(       Vec3f(conf->value("color/dso_open_cluster_color", defaultClusterColor).toString()));
        setGlobularClusterColor(   Vec3f(conf->value("color/dso_globular_cluster_color", defaultClusterColor).toString()));
        setStellarAssociationColor(Vec3f(conf->value("color/dso_stellar_association_color", defaultClusterColor).toString()));
        setStarCloudColor(         Vec3f(conf->value("color/dso_star_cloud_color", defaultClusterColor).toString()));

        QString defaultStellarColor = conf->value("color/dso_star_color", "1.0,0.7,0.2").toString();
        setStarColor(              Vec3f(defaultStellarColor));
        setSymbioticStarColor(     Vec3f(conf->value("color/dso_symbiotic_star_color", defaultStellarColor).toString()));
        setEmissionLineStarColor(  Vec3f(conf->value("color/dso_emission_star_color", defaultStellarColor).toString()));
        setEmissionObjectColor(    Vec3f(conf->value("color/dso_emission_object_color", defaultStellarColor).toString()));
        setYoungStellarObjectColor(Vec3f(conf->value("color/dso_young_stellar_object_color", defaultStellarColor).toString()));

        // for DSO convertor (for developers!)
        flagConverter = conf->value("devel/convert_dso_catalog", false).toBool();
        flagDecimalCoordinates = conf->value("devel/convert_dso_decimal_coord", true).toBool();

        setFlagUseTypeFilters(conf->value("astro/flag_use_type_filter", false).toBool());

        loadCatalogFilters();

        Nebula::TypeGroup typeFilters = Nebula::TypeGroup(Nebula::TypeNone);

        conf->beginGroup("dso_type_filters");
        if (conf->value("flag_show_galaxies", true).toBool())
                typeFilters        |= Nebula::TypeGalaxies;
        if (conf->value("flag_show_active_galaxies", true).toBool())
                typeFilters        |= Nebula::TypeActiveGalaxies;
        if (conf->value("flag_show_interacting_galaxies", true).toBool())
                typeFilters        |= Nebula::TypeInteractingGalaxies;
        if (conf->value("flag_show_open_clusters", true).toBool())
                typeFilters        |= Nebula::TypeOpenStarClusters;
        if (conf->value("flag_show_globular_clusters", true).toBool())
                typeFilters        |= Nebula::TypeGlobularStarClusters;
        if (conf->value("flag_show_bright_nebulae", true).toBool())
                typeFilters        |= Nebula::TypeBrightNebulae;
        if (conf->value("flag_show_dark_nebulae", true).toBool())
                typeFilters        |= Nebula::TypeDarkNebulae;
        if (conf->value("flag_show_planetary_nebulae", true).toBool())
                typeFilters        |= Nebula::TypePlanetaryNebulae;
        if (conf->value("flag_show_hydrogen_regions", true).toBool())
                typeFilters        |= Nebula::TypeHydrogenRegions;
        if (conf->value("flag_show_supernova_remnants", true).toBool())
                typeFilters        |= Nebula::TypeSupernovaRemnants;
        if (conf->value("flag_show_galaxy_clusters", true).toBool())
                typeFilters        |= Nebula::TypeGalaxyClusters;
        if (conf->value("flag_show_other", true).toBool())
                typeFilters        |= Nebula::TypeOther;
        conf->endGroup();

        setTypeFilters(typeFilters);

        // TODO: mechanism to specify which sets get loaded at start time.
        // candidate methods:
        // 1. config file option (list of sets to load at startup)
        // 2. load all
        // 3. flag in nebula_textures.fab (yuk)
        // 4. info.ini file in each set containing a "load at startup" item
        // For now (0.9.0), just load the default set
        loadNebulaSet("default");

        updateI18n();

        StelApp *app = &StelApp::getInstance();
        connect(app, SIGNAL(languageChanged()), this, SLOT(updateI18n()));
        connect(&app->getSkyCultureMgr(), SIGNAL(currentSkyCultureChanged(QString)), this, SLOT(updateSkyCulture(const QString&)));
        GETSTELMODULE(StelObjectMgr)->registerStelObjectMgr(this);

        addAction("actionShow_Nebulas", N_("Display Options"), N_("Deep-sky objects"), "flagHintDisplayed", "D", "N");
        addAction("actionSet_Nebula_TypeFilterUsage", N_("Display Options"), N_("Toggle DSO type filter"), "flagTypeFiltersUsage");
}

void NebulaMgr::selectAllCatalogs()
{
        setCatalogFilters(Nebula::CatAll);
}

void NebulaMgr::selectStandardCatalogs()
{
        Nebula::CatalogGroup catalogs = Nebula::CatNone;
        catalogs |= Nebula::CatNGC;
        catalogs |= Nebula::CatIC;
        catalogs |= Nebula::CatM;
        setCatalogFilters(catalogs);
}

void NebulaMgr::selectNoneCatalogs()
{
        setCatalogFilters(Nebula::CatNone);
}

void NebulaMgr::loadCatalogFilters()
{
        QSettings* conf = StelApp::getInstance().getSettings();
        Q_ASSERT(conf);

        Nebula::CatalogGroup catalogFilters = Nebula::CatalogGroup(Nebula::CatNone);

        conf->beginGroup("dso_catalog_filters");
        if (conf->value("flag_show_ngc", true).toBool())
                catalogFilters        |= Nebula::CatNGC;
        if (conf->value("flag_show_ic", true).toBool())
                catalogFilters        |= Nebula::CatIC;
        if (conf->value("flag_show_m", true).toBool())
                catalogFilters        |= Nebula::CatM;
        if (conf->value("flag_show_c", false).toBool())
                catalogFilters        |= Nebula::CatC;
        if (conf->value("flag_show_b", false).toBool())
                catalogFilters        |= Nebula::CatB;
        if (conf->value("flag_show_sh2", false).toBool())
                catalogFilters        |= Nebula::CatSh2;
        if (conf->value("flag_show_vdb", false).toBool())
                catalogFilters        |= Nebula::CatVdB;
        if (conf->value("flag_show_lbn", false).toBool())
                catalogFilters        |= Nebula::CatLBN;
        if (conf->value("flag_show_ldn", false).toBool())
                catalogFilters        |= Nebula::CatLDN;
        if (conf->value("flag_show_rcw", false).toBool())
                catalogFilters        |= Nebula::CatRCW;
        if (conf->value("flag_show_cr", false).toBool())
                catalogFilters        |= Nebula::CatCr;
        if (conf->value("flag_show_mel", false).toBool())
                catalogFilters        |= Nebula::CatMel;
        if (conf->value("flag_show_pgc", false).toBool())
                catalogFilters        |= Nebula::CatPGC;
        if (conf->value("flag_show_ced", false).toBool())
                catalogFilters        |= Nebula::CatCed;
        if (conf->value("flag_show_ugc", false).toBool())
                catalogFilters        |= Nebula::CatUGC;
        if (conf->value("flag_show_arp", false).toBool())
                catalogFilters        |= Nebula::CatArp;
        if (conf->value("flag_show_vv", false).toBool())
                catalogFilters        |= Nebula::CatVV;
        if (conf->value("flag_show_pk", false).toBool())
                catalogFilters        |= Nebula::CatPK;
        if (conf->value("flag_show_png", false).toBool())
                catalogFilters        |= Nebula::CatPNG;
        if (conf->value("flag_show_snrg", false).toBool())
                catalogFilters        |= Nebula::CatSNRG;
        if (conf->value("flag_show_aco", false).toBool())
                catalogFilters        |= Nebula::CatACO;
        if (conf->value("flag_show_hcg", false).toBool())
                catalogFilters        |= Nebula::CatHCG;
        if (conf->value("flag_show_eso", false).toBool())
                catalogFilters        |= Nebula::CatESO;
        if (conf->value("flag_show_vdbh", false).toBool())
                catalogFilters        |= Nebula::CatVdBH;
        if (conf->value("flag_show_dwb", false).toBool())
                catalogFilters        |= Nebula::CatDWB;
        if (conf->value("flag_show_tr", false).toBool())
                catalogFilters        |= Nebula::CatTr;
        if (conf->value("flag_show_st", false).toBool())
                catalogFilters        |= Nebula::CatSt;
        if (conf->value("flag_show_ru", false).toBool())
                catalogFilters        |= Nebula::CatRu;
        if (conf->value("flag_show_vdbha", false).toBool())
                catalogFilters        |= Nebula::CatVdBHa;
        if (conf->value("flag_show_other", true).toBool())
                catalogFilters        |= Nebula::CatOther;
        conf->endGroup();

        // NB: nebula set loaded inside setter of catalog filter
        setCatalogFilters(int(catalogFilters));
}

void NebulaMgr::storeCatalogFilters()
{
        QSettings* conf = StelApp::getInstance().getSettings();
        Q_ASSERT(conf);

        // view dialog / DSO tag settings
        const Nebula::CatalogGroup cflags = static_cast<Nebula::CatalogGroup>(getCatalogFilters());

        conf->beginGroup("dso_catalog_filters");
        conf->setValue("flag_show_ngc",                static_cast<bool>(cflags & Nebula::CatNGC));
        conf->setValue("flag_show_ic",                static_cast<bool>(cflags & Nebula::CatIC));
        conf->setValue("flag_show_m",                static_cast<bool>(cflags & Nebula::CatM));
        conf->setValue("flag_show_c",                static_cast<bool>(cflags & Nebula::CatC));
        conf->setValue("flag_show_b",                static_cast<bool>(cflags & Nebula::CatB));
        conf->setValue("flag_show_vdb",                static_cast<bool>(cflags & Nebula::CatVdB));
        conf->setValue("flag_show_sh2",                static_cast<bool>(cflags & Nebula::CatSh2));
        conf->setValue("flag_show_rcw",                static_cast<bool>(cflags & Nebula::CatRCW));
        conf->setValue("flag_show_lbn",                static_cast<bool>(cflags & Nebula::CatLBN));
        conf->setValue("flag_show_ldn",                static_cast<bool>(cflags & Nebula::CatLDN));
        conf->setValue("flag_show_cr",                static_cast<bool>(cflags & Nebula::CatCr));
        conf->setValue("flag_show_mel",                static_cast<bool>(cflags & Nebula::CatMel));
        conf->setValue("flag_show_ced",                static_cast<bool>(cflags & Nebula::CatCed));
        conf->setValue("flag_show_pgc",                static_cast<bool>(cflags & Nebula::CatPGC));
        conf->setValue("flag_show_ugc",                static_cast<bool>(cflags & Nebula::CatUGC));
        conf->setValue("flag_show_arp",                static_cast<bool>(cflags & Nebula::CatArp));
        conf->setValue("flag_show_vv",                static_cast<bool>(cflags & Nebula::CatVV));
        conf->setValue("flag_show_pk",                static_cast<bool>(cflags & Nebula::CatPK));
        conf->setValue("flag_show_png",                static_cast<bool>(cflags & Nebula::CatPNG));
        conf->setValue("flag_show_snrg",                static_cast<bool>(cflags & Nebula::CatSNRG));
        conf->setValue("flag_show_aco",                static_cast<bool>(cflags & Nebula::CatACO));
        conf->setValue("flag_show_hcg",                static_cast<bool>(cflags & Nebula::CatHCG));
        conf->setValue("flag_show_eso",                static_cast<bool>(cflags & Nebula::CatESO));
        conf->setValue("flag_show_vdbh",                static_cast<bool>(cflags & Nebula::CatVdBH));
        conf->setValue("flag_show_dwb",                static_cast<bool>(cflags & Nebula::CatDWB));
        conf->setValue("flag_show_tr",                static_cast<bool>(cflags & Nebula::CatTr));
        conf->setValue("flag_show_st",                static_cast<bool>(cflags & Nebula::CatSt));
        conf->setValue("flag_show_ru",                static_cast<bool>(cflags & Nebula::CatRu));
        conf->setValue("flag_show_vdbha",        static_cast<bool>(cflags & Nebula::CatVdBHa));
        conf->setValue("flag_show_other",                static_cast<bool>(cflags & Nebula::CatOther));
        conf->endGroup();
}

struct DrawNebulaFuncObject
{
        DrawNebulaFuncObject(float amaxMagHints, float amaxMagLabels, StelPainter* p, StelCore* aCore, bool acheckMaxMagHints)
                : maxMagHints(amaxMagHints)
                , maxMagLabels(amaxMagLabels)
                , sPainter(p)
                , core(aCore)
                , checkMaxMagHints(acheckMaxMagHints)
        {
                angularSizeLimit = 5.f/sPainter->getProjector()->getPixelPerRadAtCenter()*M_180_PIf;
        }
        void operator()(StelRegionObject* obj)
        {
                if (checkMaxMagHints)
                        return;

                Nebula* n = static_cast<Nebula*>(obj);
                float mag=n->getVisibilityLevelByMagnitude();

                StelSkyDrawer *drawer = core->getSkyDrawer();
                // filter out DSOs which are too dim to be seen (e.g. for bino observers)
                if ((drawer->getFlagNebulaMagnitudeLimit()) && (mag > static_cast<float>(drawer->getCustomNebulaMagnitudeLimit())))
                        return;

                if (!n->objectInDisplayedCatalog())
                        return;

                if (!n->objectInAllowedSizeRangeLimits())
                        return;

                if (n->majorAxisSize>angularSizeLimit || n->majorAxisSize==0.f || mag <= maxMagHints)
                {
                        sPainter->getProjector()->project(n->getJ2000EquatorialPos(core),n->XY);
                        n->drawLabel(*sPainter, maxMagLabels);
                        n->drawHints(*sPainter, maxMagHints, core);
                        n->drawOutlines(*sPainter, maxMagHints);
                }
        }
        float maxMagHints;
        float maxMagLabels;
        StelPainter* sPainter;
        StelCore* core;
        float angularSizeLimit;
        bool checkMaxMagHints;
};

void NebulaMgr::setCatalogFilters(int cflags)
{
        if(cflags != static_cast<int>(Nebula::catalogFilters))
        {
                Nebula::catalogFilters = static_cast<Nebula::CatalogGroup>(cflags);
                emit catalogFiltersChanged(cflags);
        }
}

void NebulaMgr::setTypeFilters(int tflags)
{
        if(tflags != static_cast<int>(Nebula::typeFilters))
        {
                Nebula::typeFilters = static_cast<Nebula::TypeGroup>(tflags);
                emit typeFiltersChanged(tflags);
        }
}

void NebulaMgr::setFlagSurfaceBrightnessUsage(const bool usage)
{
        if (usage!=Nebula::surfaceBrightnessUsage)
        {
                Nebula::surfaceBrightnessUsage=usage;
                emit flagSurfaceBrightnessUsageChanged(usage);
        }
}

bool NebulaMgr::getFlagSurfaceBrightnessUsage(void) const
{
        return Nebula::surfaceBrightnessUsage;
}

void NebulaMgr::setFlagSurfaceBrightnessArcsecUsage(const bool usage)
{
        if (usage!=Nebula::flagUseArcsecSurfaceBrightness)
        {
                Nebula::flagUseArcsecSurfaceBrightness=usage;
                emit flagSurfaceBrightnessArcsecUsageChanged(usage);
        }
}

bool NebulaMgr::getFlagSurfaceBrightnessArcsecUsage(void) const
{
        return Nebula::flagUseArcsecSurfaceBrightness;
}

void NebulaMgr::setFlagSurfaceBrightnessShortNotationUsage(const bool usage)
{
        if (usage!=Nebula::flagUseShortNotationSurfaceBrightness)
        {
                Nebula::flagUseShortNotationSurfaceBrightness=usage;
                emit flagSurfaceBrightnessShortNotationUsageChanged(usage);
        }
}

bool NebulaMgr::getFlagSurfaceBrightnessShortNotationUsage(void) const
{
        return Nebula::flagUseShortNotationSurfaceBrightness;
}

void NebulaMgr::setFlagSizeLimitsUsage(const bool usage)
{
        if (usage!=Nebula::flagUseSizeLimits)
        {
                Nebula::flagUseSizeLimits=usage;
                emit flagSizeLimitsUsageChanged(usage);
        }
}

bool NebulaMgr::getFlagSizeLimitsUsage(void) const
{
        return Nebula::flagUseSizeLimits;
}

void NebulaMgr::setFlagUseTypeFilters(const bool b)
{
        if (Nebula::flagUseTypeFilters!=b)
        {
                Nebula::flagUseTypeFilters=b;
                emit flagUseTypeFiltersChanged(b);
        }
}

bool NebulaMgr::getFlagUseTypeFilters(void) const
{
        return Nebula::flagUseTypeFilters;
}

void NebulaMgr::setLabelsAmount(double a)
{
        if((a-labelsAmount) != 0.)
        {
                labelsAmount=a;
                emit labelsAmountChanged(a);
        }
}

double NebulaMgr::getLabelsAmount(void) const
{
        return labelsAmount;
}

void NebulaMgr::setHintsAmount(double f)
{
        if((hintsAmount-f) != 0.)
        {
                hintsAmount = f;
                emit hintsAmountChanged(f);
        }
}

double NebulaMgr::getHintsAmount(void) const
{
        return hintsAmount;
}

void NebulaMgr::setMinSizeLimit(double s)
{
        if((Nebula::minSizeLimit-s) != 0.)
        {
                Nebula::minSizeLimit = s;
                emit minSizeLimitChanged(s);
        }
}

double NebulaMgr::getMinSizeLimit() const
{
        return Nebula::minSizeLimit;
}

void NebulaMgr::setMaxSizeLimit(double s)
{
        if((Nebula::maxSizeLimit-s) != 0.)
        {
                Nebula::maxSizeLimit = s;
                emit maxSizeLimitChanged(s);
        }
}

double NebulaMgr::getMaxSizeLimit() const
{
        return Nebula::maxSizeLimit;
}

float NebulaMgr::computeMaxMagHint(const StelSkyDrawer* skyDrawer) const
{
        return skyDrawer->getLimitMagnitude()*1.2f-2.f+static_cast<float>(hintsAmount *1.)-2.f;
}

// Draw all the Nebulae
void NebulaMgr::draw(StelCore* core)
{
        const StelProjectorP prj = core->getProjection(StelCore::FrameJ2000);
        StelPainter sPainter(prj);

        StelSkyDrawer* skyDrawer = core->getSkyDrawer();

        Nebula::hintsBrightness = hintsFader.getInterstate()*flagShow.getInterstate();

        sPainter.setBlending(true, GL_ONE, GL_ONE);

        // Use a 4 degree margin (esp. for wide outlines)
        const float margin = 4.f*M_PI_180f*prj->getPixelPerRadAtCenter();
        const SphericalRegionP& p = prj->getViewportConvexPolygon(margin, margin);

        // Print all the nebulae of all the selected zones
        float maxMagHints  = computeMaxMagHint(skyDrawer);
        float maxMagLabels = skyDrawer->getLimitMagnitude()-2.f+static_cast<float>(labelsAmount*1.2)-2.f;
        sPainter.setFont(nebulaFont);
        DrawNebulaFuncObject func(maxMagHints, maxMagLabels, &sPainter, core, hintsFader.getInterstate()<=0.f);
        nebGrid.processIntersectingPointInRegions(p.data(), func);

        if (GETSTELMODULE(StelObjectMgr)->getFlagSelectedObjectPointer())
                drawPointer(core, sPainter);
}

void NebulaMgr::drawPointer(const StelCore* core, StelPainter& sPainter)
{
        const StelProjectorP prj = core->getProjection(StelCore::FrameJ2000);

        const QList<StelObjectP> newSelected = GETSTELMODULE(StelObjectMgr)->getSelectedObject("Nebula");
        if (!newSelected.empty())
        {
                const StelObjectP obj = newSelected[0];
                Vec3d pos=obj->getJ2000EquatorialPos(core);

                // Compute 2D pos and return if outside screen
                if (!prj->projectInPlace(pos)) return;
                sPainter.setColor(0.4f,0.5f,0.8f);

                texPointer->bind();

                sPainter.setBlending(true);

                // Size on screen
                float screenRd = static_cast<float>(obj->getAngularRadius(core))*M_PI_180f*prj->getPixelPerRadAtCenter();
                if (screenRd>120.f) // avoid oversized marker
                        screenRd = 120.f;

                if (Nebula::drawHintProportional)
                        screenRd*=1.2f;
                screenRd+=20.f + 10.f*std::sin(3.f * static_cast<float>(StelApp::getInstance().getAnimationTime()));
                sPainter.drawSprite2dMode(static_cast<float>(pos[0])-screenRd*0.5f, static_cast<float>(pos[1])-screenRd*0.5f, 10, 90);
                sPainter.drawSprite2dMode(static_cast<float>(pos[0])-screenRd*0.5f, static_cast<float>(pos[1])+screenRd*0.5f, 10, 0);
                sPainter.drawSprite2dMode(static_cast<float>(pos[0])+screenRd*0.5f, static_cast<float>(pos[1])+screenRd*0.5f, 10, -90);
                sPainter.drawSprite2dMode(static_cast<float>(pos[0])+screenRd*0.5f, static_cast<float>(pos[1])-screenRd*0.5f, 10, -180);
        }
}

// Search by name
NebulaP NebulaMgr::search(const QString& name)
{
        QString uname = name.toUpper();

        for (const auto& n : qAsConst(dsoArray))
        {
                QString testName = n->getEnglishName().toUpper();
                if (testName==uname) return n;
        }

        return searchByDesignation(uname);
}

void NebulaMgr::loadNebulaSet(const QString& setName)
{
        QString srcCatalogPath        = StelFileMgr::findFile("nebulae/" + setName + "/catalog.txt");
        QString dsoCatalogPath        = StelFileMgr::findFile("nebulae/" + setName + "/catalog-" + StellariumDSOCatalogVersion + ".dat");
        if (dsoCatalogPath.isEmpty()) // Extended edition is not exist, let's try find standard edition
                dsoCatalogPath        = StelFileMgr::findFile("nebulae/" + setName + "/catalog.dat");
        QString dsoOutlinesPath        = StelFileMgr::findFile("nebulae/" + setName + "/outlines.dat");
        QString dsoDiscoveryPath = StelFileMgr::findFile("nebulae/" + setName + "/discovery.dat");

        dsoArray.clear();
        dsoIndex.clear();
        nebGrid.clear();

        if (flagConverter)
        {
                if (!srcCatalogPath.isEmpty())
                        convertDSOCatalog(srcCatalogPath, StelFileMgr::findFile("nebulae/" + setName + "/catalog.pack", StelFileMgr::New), flagDecimalCoordinates);
                else
                        qWarning() << "ERROR convert catalogue, because source data set does not exist for " << setName;
        }

        if (dsoCatalogPath.isEmpty())
        {
                qWarning() << "ERROR while loading deep-sky catalog data set " << setName;
                return;
        }

        loadDSOCatalog(dsoCatalogPath);

        if (!dsoOutlinesPath.isEmpty())
                loadDSOOutlines(dsoOutlinesPath);

        if (!dsoDiscoveryPath.isEmpty())
                loadDSODiscoveryData(dsoDiscoveryPath);
}

// Look for a nebula by XYZ coords
NebulaP NebulaMgr::search(const Vec3d& apos)
{
        Vec3d pos(apos);
        pos.normalize();
        NebulaP plusProche;
        double anglePlusProche=0.0;
        for (const auto& n : qAsConst(dsoArray))
        {
                if (n->XYZ*pos>anglePlusProche)
                {
                        anglePlusProche=n->XYZ*pos;
                        plusProche=n;
                }
        }
        if (anglePlusProche>0.999) // object within ~2.5 degrees
        {
                return plusProche;
        }
        else return NebulaP();
}


QList<StelObjectP> NebulaMgr::searchAround(const Vec3d& av, double limitFov, const StelCore*) const
{
        QList<StelObjectP> result;
        if (!getFlagShow())
                return result;

        Vec3d v(av);
        v.normalize();
        const double cosLimFov = cos(limitFov * M_PI/180.);
        Vec3d equPos;
        for (const auto& n : qAsConst(dsoArray))
        {
                equPos = n->XYZ;
                equPos.normalize();
                if (equPos*v >= cosLimFov)
                {
                        result.push_back(qSharedPointerCast<StelObject>(n));
                }
        }
        return result;
}

NebulaP NebulaMgr::searchDSO(unsigned int DSO) const
{
        if (dsoIndex.contains(DSO))
                return dsoIndex[DSO];
        return NebulaP();
}


NebulaP NebulaMgr::searchM(unsigned int M) const
{
        for (const auto& n : dsoArray)
                if (n->M_nb == M)
                        return n;
        return NebulaP();
}

NebulaP NebulaMgr::searchNGC(unsigned int NGC) const
{
        for (const auto& n : dsoArray)
                if (n->NGC_nb == NGC)
                        return n;
        return NebulaP();
}

NebulaP NebulaMgr::searchIC(unsigned int IC) const
{
        for (const auto& n : dsoArray)
                if (n->IC_nb == IC)
                        return n;
        return NebulaP();
}

NebulaP NebulaMgr::searchC(unsigned int C) const
{
        for (const auto& n : dsoArray)
                if (n->C_nb == C)
                        return n;
        return NebulaP();
}

NebulaP NebulaMgr::searchB(unsigned int B) const
{
        for (const auto& n : dsoArray)
                if (n->B_nb == B)
                        return n;
        return NebulaP();
}

NebulaP NebulaMgr::searchSh2(unsigned int Sh2) const
{
        for (const auto& n : dsoArray)
                if (n->Sh2_nb == Sh2)
                        return n;
        return NebulaP();
}

NebulaP NebulaMgr::searchVdB(unsigned int VdB) const
{
        for (const auto& n : dsoArray)
                if (n->VdB_nb == VdB)
                        return n;
        return NebulaP();
}

NebulaP NebulaMgr::searchVdBHa(unsigned int VdBHa) const
{
        for (const auto& n : dsoArray)
                if (n->VdBHa_nb == VdBHa)
                        return n;
        return NebulaP();
}

NebulaP NebulaMgr::searchRCW(unsigned int RCW) const
{
        for (const auto& n : dsoArray)
                if (n->RCW_nb == RCW)
                        return n;
        return NebulaP();
}

NebulaP NebulaMgr::searchLDN(unsigned int LDN) const
{
        for (const auto& n : dsoArray)
                if (n->LDN_nb == LDN)
                        return n;
        return NebulaP();
}

NebulaP NebulaMgr::searchLBN(unsigned int LBN) const
{
        for (const auto& n : dsoArray)
                if (n->LBN_nb == LBN)
                        return n;
        return NebulaP();
}

NebulaP NebulaMgr::searchCr(unsigned int Cr) const
{
        for (const auto& n : dsoArray)
                if (n->Cr_nb == Cr)
                        return n;
        return NebulaP();
}

NebulaP NebulaMgr::searchMel(unsigned int Mel) const
{
        for (const auto& n : dsoArray)
                if (n->Mel_nb == Mel)
                        return n;
        return NebulaP();
}

NebulaP NebulaMgr::searchPGC(unsigned int PGC) const
{
        for (const auto& n : dsoArray)
                if (n->PGC_nb == PGC)
                        return n;
        return NebulaP();
}

NebulaP NebulaMgr::searchUGC(unsigned int UGC) const
{
        for (const auto& n : dsoArray)
                if (n->UGC_nb == UGC)
                        return n;
        return NebulaP();
}

NebulaP NebulaMgr::searchCed(QString Ced) const
{
        for (const auto& n : dsoArray)
                if (n->Ced_nb.trimmed().toUpper() == Ced.trimmed().toUpper())
                        return n;
        return NebulaP();
}

NebulaP NebulaMgr::searchArp(unsigned int Arp) const
{
        for (const auto& n : dsoArray)
                if (n->Arp_nb == Arp)
                        return n;
        return NebulaP();
}

NebulaP NebulaMgr::searchVV(unsigned int VV) const
{
        for (const auto& n : dsoArray)
                if (n->VV_nb == VV)
                        return n;
        return NebulaP();
}

NebulaP NebulaMgr::searchPK(QString PK) const
{
        for (const auto& n : dsoArray)
                if (n->PK_nb.trimmed().toUpper() == PK.trimmed().toUpper())
                        return n;
        return NebulaP();
}

NebulaP NebulaMgr::searchPNG(QString PNG) const
{
        for (const auto& n : dsoArray)
                if (n->PNG_nb.trimmed().toUpper() == PNG.trimmed().toUpper())
                        return n;
        return NebulaP();
}

NebulaP NebulaMgr::searchSNRG(QString SNRG) const
{
        for (const auto& n : dsoArray)
                if (n->SNRG_nb.trimmed().toUpper() == SNRG.trimmed().toUpper())
                        return n;
        return NebulaP();
}

NebulaP NebulaMgr::searchACO(QString ACO) const
{
        for (const auto& n : dsoArray)
                if (n->ACO_nb.trimmed().toUpper() == ACO.trimmed().toUpper())
                        return n;
        return NebulaP();
}

NebulaP NebulaMgr::searchHCG(QString HCG) const
{
        for (const auto& n : dsoArray)
                if (n->HCG_nb.trimmed().toUpper() == HCG.trimmed().toUpper())
                        return n;
        return NebulaP();
}

NebulaP NebulaMgr::searchESO(QString ESO) const
{
        for (const auto& n : dsoArray)
                if (n->ESO_nb.trimmed().toUpper() == ESO.trimmed().toUpper())
                        return n;
        return NebulaP();
}

NebulaP NebulaMgr::searchVdBH(QString VdBH) const
{
        for (const auto& n : dsoArray)
                if (n->VdBH_nb.trimmed().toUpper() == VdBH.trimmed().toUpper())
                        return n;
        return NebulaP();
}

NebulaP NebulaMgr::searchDWB(unsigned int DWB) const
{
        for (const auto& n : dsoArray)
                if (n->DWB_nb == DWB)
                        return n;
        return NebulaP();
}

NebulaP NebulaMgr::searchTr(unsigned int Tr) const
{
        for (const auto& n : dsoArray)
                if (n->Tr_nb == Tr)
                        return n;
        return NebulaP();
}

NebulaP NebulaMgr::searchSt(unsigned int St) const
{
        for (const auto& n : dsoArray)
                if (n->St_nb == St)
                        return n;
        return NebulaP();
}

NebulaP NebulaMgr::searchRu(unsigned int Ru) const
{
        for (const auto& n : dsoArray)
                if (n->Ru_nb == Ru)
                        return n;
        return NebulaP();
}

QString NebulaMgr::getLatestSelectedDSODesignation() const
{
        QString result = "";

        const QList<StelObjectP> selected = GETSTELMODULE(StelObjectMgr)->getSelectedObject("Nebula");
        if (!selected.empty())
        {
                for (const auto& n : dsoArray)
                        if (n==selected[0])
                                result = n->getDSODesignation(); // Get designation for latest selected DSO
        }

        return result;
}

QString NebulaMgr::getLatestSelectedDSODesignationWIC() const
{
        QString result = "";

        const QList<StelObjectP> selected = GETSTELMODULE(StelObjectMgr)->getSelectedObject("Nebula");
        if (!selected.empty())
        {
                for (const auto& n : dsoArray)
                        if (n==selected[0])
                                result = n->getDSODesignationWIC(); // Get designation for latest selected DSO
        }

        return result;
}

void NebulaMgr::convertDSOCatalog(const QString &in, const QString &out, bool decimal=false)
{
        QFile dsoIn(in);
        if (!dsoIn.open(QIODevice::ReadOnly | QIODevice::Text))
                return;

        QFile dsoOut(out);
        if (!dsoOut.open(QIODevice::WriteOnly))
        {
                qDebug() << "Error converting DSO data! Cannot open file" << QDir::toNativeSeparators(out);
                return;
        }

        int totalRecords=0;
        QString record;
        while (!dsoIn.atEnd())
        {
                dsoIn.readLine();
                ++totalRecords;
        }

        // rewind the file to the start
        dsoIn.seek(0);

        QDataStream dsoOutStream(&dsoOut);
        dsoOutStream.setVersion(QDataStream::Qt_5_2);

        int        id, orientationAngle, NGC, IC, M, C, B, Sh2, VdB, RCW, LDN, LBN, Cr, Mel, PGC, UGC, Arp, VV, DWB, Tr, St, Ru, VdBHa;
        float        raRad, decRad, bMag, vMag, majorAxisSize, minorAxisSize, dist, distErr, z, zErr, plx, plxErr;
        QString oType, mType, Ced, PK, PNG, SNRG, ACO, HCG, ESO, VdBH, ra, dec;
        Nebula::NebulaType nType;

        int readOk = 0;                                // how many records were read without problems
        while (!dsoIn.atEnd())
        {
                record = QString::fromUtf8(dsoIn.readLine());

                static const QRegularExpression version("ersion\\s+([\\d\\.]+)\\s+(\\w+)");
                QRegularExpressionMatch versionMatch;
                int vp = record.indexOf(version, 0, &versionMatch);
                if (vp!=-1) // Version of catalog, a first line!
                        dsoOutStream << versionMatch.captured(1).trimmed() << versionMatch.captured(2).trimmed();

                // skip comments
                if (record.startsWith("//") || record.startsWith("#"))
                {
                        --totalRecords;
                        continue;
                }

                if (!record.isEmpty())
                {
                        #if (QT_VERSION>=QT_VERSION_CHECK(5, 14, 0))
                        QStringList list=record.split("\t", Qt::KeepEmptyParts);
                        #else
                        QStringList list=record.split("\t", QString::KeepEmptyParts);
                        #endif

                        id                                = list.at(0).toInt();                // ID (inner identification number)
                        ra                                = list.at(1).trimmed();
                        dec                                = list.at(2).trimmed();
                        bMag                        = list.at(3).toFloat();                // B magnitude
                        vMag                        = list.at(4).toFloat();                // V magnitude
                        oType                        = list.at(5).trimmed();                // Object type
                        mType                        = list.at(6).trimmed();                // Morphological type of object
                        majorAxisSize                = list.at(7).toFloat();                // major axis size (arcmin)
                        minorAxisSize                = list.at(8).toFloat();                // minor axis size (arcmin)
                        orientationAngle        = list.at(9).toInt();                // orientation angle (degrees)
                        z                                = list.at(10).toFloat();        // redshift
                        zErr                                = list.at(11).toFloat();        // error of redshift
                        plx                                = list.at(12).toFloat();        // parallax (mas)
                        plxErr                        = list.at(13).toFloat();        // error of parallax (mas)
                        dist                                = list.at(14).toFloat();        // distance (Mpc for galaxies, kpc for other objects)
                        distErr                        = list.at(15).toFloat();        // distance error (Mpc for galaxies, kpc for other objects)
                        // -----------------------------------------------
                        // cross-identification data
                        // -----------------------------------------------
                        NGC                                = list.at(16).toInt();                // NGC number
                        IC                                = list.at(17).toInt();                // IC number
                        M                                = list.at(18).toInt();                // M number
                        C                                = list.at(19).toInt();                // C number
                        B                                = list.at(20).toInt();                // B number
                        Sh2                                = list.at(21).toInt();                // Sh2 number
                        VdB                                = list.at(22).toInt();                // VdB number
                        RCW                                = list.at(23).toInt();                // RCW number
                        LDN                                = list.at(24).toInt();                // LDN number
                        LBN                                = list.at(25).toInt();                // LBN number
                        Cr                                = list.at(26).toInt();                // Cr number (alias: Col)
                        Mel                                = list.at(27).toInt();                // Mel number
                        PGC                                = list.at(28).toInt();                // PGC number (subset)
                        UGC                                = list.at(29).toInt();                // UGC number (subset)
                        Ced                                = list.at(30).trimmed();        // Ced number
                        Arp                                = list.at(31).toInt();                // Arp number
                        VV                                = list.at(32).toInt();                // VV number
                        PK                                = list.at(33).trimmed();        // PK number
                        PNG                                = list.at(34).trimmed();        // PN G number
                        SNRG                        = list.at(35).trimmed();        // SNR G number
                        ACO                                = list.at(36).trimmed();        // ACO number
                        HCG                                = list.at(37).trimmed();        // HCG number
                        ESO                                = list.at(38).trimmed();        // ESO number
                        VdBH                        = list.at(39).trimmed();        // VdBH number
                        DWB                                = list.at(40).toInt();                // DWB number
                        Tr                                = list.at(41).toInt();                // Tr number
                        St                                = list.at(42).toInt();                // St number
                        Ru                                = list.at(43).toInt();                // Ru number
                        VdBHa                        = list.at(44).toInt();                // VdB-Ha number

                        if (decimal)
                        {
                                // Convert from deg to rad
                                raRad        = ra.toFloat() *M_PI_180f;
                                decRad        = dec.toFloat()*M_PI_180f;
                        }
                        else
                        {
                                QStringList raLst;
                                if (ra.contains(":"))
                                        raLst        = ra.split(":");
                                else
                                        raLst        = ra.split(" ");

                                QStringList decLst;
                                if (dec.contains(":"))
                                        decLst = dec.split(":");
                                else
                                        decLst = dec.split(" ");

                                raRad        = raLst.at(0).toFloat() + raLst.at(1).toFloat()/60.f + raLst.at(2).toFloat()/3600.f;
                                decRad        = qAbs(decLst.at(0).toFloat()) + decLst.at(1).toFloat()/60.f + decLst.at(2).toFloat()/3600.f;
                                if (dec.startsWith("-")) decRad *= -1.f;

                                raRad  *= M_PIf/12.f;        // Convert from hours to rad
                                decRad *= M_PIf/180.f;    // Convert from deg to rad
                        }

                        majorAxisSize /= 60.f;        // Convert from arcmin to degrees
                        minorAxisSize /= 60.f;        // Convert from arcmin to degrees

                        // Warning: Hyades and LMC has visual magnitude less than 1.0 (0.5^m and 0.9^m)
                        if (bMag <= 0.f) bMag = 99.f;
                        if (vMag <= 0.f) vMag = 99.f;
                        // TODO: The map could be sorted by probability (number of total objects). More common objects at start...
                        static const QMap<QString, Nebula::NebulaType> oTypesMap = {
                                { "G"   , Nebula::NebGx  },
                                { "GX"  , Nebula::NebGx  },
                                { "GC"  , Nebula::NebGc  },
                                { "OC"  , Nebula::NebOc  },
                                { "NB"  , Nebula::NebN   },
                                { "PN"  , Nebula::NebPn  },
                                { "DN"  , Nebula::NebDn  },
                                { "RN"  , Nebula::NebRn  },
                                { "C+N" , Nebula::NebCn  },
                                { "RNE" , Nebula::NebRn  },
                                { "HII" , Nebula::NebHII },
                                { "SNR" , Nebula::NebSNR },
                                { "BN"  , Nebula::NebBn  },
                                { "EN"  , Nebula::NebEn  },
                                { "SA"  , Nebula::NebSA  },
                                { "SC"  , Nebula::NebSC  },
                                { "CL"  , Nebula::NebCl  },
                                { "IG"  , Nebula::NebIGx },
                                { "RG"  , Nebula::NebRGx },
                                { "AGX" , Nebula::NebAGx },
                                { "QSO" , Nebula::NebQSO },
                                { "ISM" , Nebula::NebISM },
                                { "EMO" , Nebula::NebEMO },
                                { "GNE" , Nebula::NebHII },
                                { "RAD" , Nebula::NebISM },
                                { "LIN" , Nebula::NebAGx },// LINER-type active galaxies
                                { "BLL" , Nebula::NebBLL },
                                { "BLA" , Nebula::NebBLA },
                                { "MOC" , Nebula::NebMolCld },
                                { "YSO" , Nebula::NebYSO },
                                { "Q?"  , Nebula::NebPossQSO },
                                { "PN?" , Nebula::NebPossPN },
                                { "*"   , Nebula::NebStar},
                                { "SFR" , Nebula::NebMolCld },
                                { "IR"  , Nebula::NebDn  },
                                { "**"  , Nebula::NebStar},
                                { "MUL" , Nebula::NebStar},
                                { "PPN" , Nebula::NebPPN },
                                { "GIG" , Nebula::NebIGx },
                                { "OPC" , Nebula::NebOc  },
                                { "MGR" , Nebula::NebSA  },
                                { "IG2" , Nebula::NebIGx },
                                { "IG3" , Nebula::NebIGx },
                                { "SY*" , Nebula::NebSymbioticStar},
                                { "PA*" , Nebula::NebPPN },
                                { "CV*" , Nebula::NebStar},
                                { "Y*?" , Nebula::NebYSO },
                                { "CGB" , Nebula::NebISM },
                                { "SNRG", Nebula::NebSNR },
                                { "Y*O" , Nebula::NebYSO },
                                { "SR*" , Nebula::NebStar},
                                { "EM*" , Nebula::NebEmissionLineStar },
                                { "AB*" , Nebula::NebStar },
                                { "MI*" , Nebula::NebStar },
                                { "MI?" , Nebula::NebStar },
                                { "TT*" , Nebula::NebStar },
                                { "WR*" , Nebula::NebStar },
                                { "C*"  , Nebula::NebEmissionLineStar },
                                { "WD*" , Nebula::NebStar },
                                { "EL*" , Nebula::NebStar },
                                { "NL*" , Nebula::NebStar },
                                { "NO*" , Nebula::NebStar },
                                { "HS*" , Nebula::NebStar },
                                { "LP*" , Nebula::NebStar },
                                { "OH*" , Nebula::NebStar },
                                { "S?R" , Nebula::NebStar },
                                { "IR*" , Nebula::NebStar },
                                { "POC" , Nebula::NebMolCld },
                                { "PNB" , Nebula::NebPn   },
                                { "GXCL", Nebula::NebGxCl },
                                { "AL*" , Nebula::NebStar },
                                { "PR*" , Nebula::NebStar },
                                { "RS*" , Nebula::NebStar },
                                { "S*B" , Nebula::NebStar },
                                { "SN?" , Nebula::NebSNC  },
                                { "SR?" , Nebula::NebSNRC },
                                { "DNE" , Nebula::NebDn   },
                                { "RG*" , Nebula::NebStar },
                                { "PSR" , Nebula::NebSNR  },
                                { "HH"  , Nebula::NebISM  },
                                { "V*"  , Nebula::NebStar },
                                { "*IN"  , Nebula::NebCn },
                                { "SN*"  , Nebula::NebStar },
                                { "PA?" , Nebula::NebPPN  },
                                { "BUB" , Nebula::NebISM  },
                                { "CLG" , Nebula::NebGxCl },
                                { "POG" , Nebula::NebPartOfGx },
                                { "CGG" , Nebula::NebGxCl },
                                { "SCG" , Nebula::NebGxCl },
                                { "REG" , Nebula::NebRegion },
                                { "?" , Nebula::NebUnknown }
                        };

                        nType=oTypesMap.value(oType.toUpper(), Nebula::NebUnknown);
                        if (nType == Nebula::NebUnknown)
                                qDebug() << "Record with ID" << id <<"has unknown type of object:" << oType;

                        ++readOk;

                        dsoOutStream << id << raRad << decRad << bMag << vMag << static_cast<unsigned int>(nType) << mType << majorAxisSize << minorAxisSize
                                     << orientationAngle << z << zErr << plx << plxErr << dist  << distErr << NGC << IC << M << C
                                     << B << Sh2 << VdB << RCW  << LDN << LBN << Cr << Mel << PGC << UGC << Ced << Arp << VV << PK
                                     << PNG << SNRG << ACO << HCG << ESO << VdBH << DWB << Tr << St << Ru << VdBHa;
                }
        }
        dsoIn.close();
        dsoOut.flush();
        dsoOut.close();
        qDebug().noquote() << "Converted" << readOk << "/" << totalRecords << "DSO records";
        qDebug().noquote() << "[...] Please use 'gzip -nc catalog.pack > catalog.dat' to pack the catalog.";
}

bool NebulaMgr::loadDSOCatalog(const QString &filename)
{
        QFile in(filename);
        if (!in.open(QIODevice::ReadOnly))
                return false;

        qDebug().noquote() << "Loading DSO data ...";

        // Let's begin use gzipped data
        QDataStream ins(StelUtils::uncompress(in.readAll()));
        ins.setVersion(QDataStream::Qt_5_2);

        QString version = "", edition= "";
        int totalRecords=0;
        while (!ins.atEnd())
        {
                if (totalRecords==0) // Read the version of catalog
                {
                        ins >> version >> edition;
                        if (version.isEmpty())
                                version = "3.1"; // The first version of extended edition of the catalog
                        if (edition.isEmpty())
                                edition = "unknown";
                        qDebug().noquote() << "[...]" << QString("Stellarium DSO Catalog, version %1 (%2 edition)").arg(version, edition);
                        if (StelUtils::compareVersions(version, StellariumDSOCatalogVersion)!=0)
                        {
                                ++totalRecords;
                                qDebug().noquote() << "WARNING: Mismatch of DSO catalog version (" << version << ")! The expected version is" << StellariumDSOCatalogVersion;
                                qDebug().noquote() << "         See section 5.5 of the User Guide and install the right version of the catalog!";
                                QMessageBox::warning(Q_NULLPTR, q_("Attention!"), QString("%1. %2: %3 - %4: %5. %6").arg(q_("DSO catalog version mismatch"),  q_("Found"), version, q_("Expected"), StellariumDSOCatalogVersion, q_("See Logfile for instructions.")), QMessageBox::Ok);
                                break;
                        }
                }
                else
                {
                        // Create a new Nebula record
                        NebulaP e = NebulaP(new Nebula);
                        e->readDSO(ins);

                        dsoArray.append(e);
                        nebGrid.insert(qSharedPointerCast<StelRegionObject>(e));
                        if (e->DSO_nb!=0)
                                dsoIndex.insert(e->DSO_nb, e);
                }
                ++totalRecords;
        }
        in.close();
        qDebug().noquote() << "Loaded" << --totalRecords << "DSO records";
        return true;
}

bool NebulaMgr::loadDSONames(const QString &filename)
{
        qDebug() << "Loading DSO name data ...";
        QFile dsoNameFile(filename);
        if (!dsoNameFile.open(QIODevice::ReadOnly | QIODevice::Text))
        {
                qWarning().noquote() << "DSO name data file" << QDir::toNativeSeparators(filename) << "not found.";
                return false;
        }

        // Read the names of the deep-sky objects
        QString name, record, ref, cdes;
        QStringList nodata;
        nodata.clear();
        int totalRecords=0;
        int readOk=0;
        unsigned int nb;
        NebulaP e;
        static const QRegularExpression commentRx("^(\\s*#.*|\\s*)$");
        while (!dsoNameFile.atEnd())
        {
                record = QString::fromUtf8(dsoNameFile.readLine());
                if (commentRx.match(record).hasMatch())
                        continue;

                totalRecords++;

                // bytes 1 - 5, designator for catalogue (prefix)
                ref  = record.left(5).trimmed();
                // bytes 6 -20, identificator for object in the catalog
                cdes = record.mid(5, 15).trimmed().toUpper();
                // bytes 21-80, proper name of the object (translatable)
                name = record.mid(21).trimmed(); // Let gets the name with trimmed whitespaces

                nb = cdes.toUInt();

                static const QStringList catalogs = {
                        "IC",    "M",   "C",  "CR",  "MEL",   "B", "SH2", "VDB", "RCW",  "LDN",
                        "LBN", "NGC", "PGC", "UGC",  "CED", "ARP",  "VV",  "PK", "PNG", "SNRG",
                        "ACO", "HCG", "ESO", "VDBH", "DWB", "TR", "ST", "RU", "DBHA"};

                switch (catalogs.indexOf(ref.toUpper()))
                {
                        case 0:
                                e = searchIC(nb);
                                break;
                        case 1:
                                e = searchM(nb);
                                break;
                        case 2:
                                e = searchC(nb);
                                break;
                        case 3:
                                e = searchCr(nb);
                                break;
                        case 4:
                                e = searchMel(nb);
                                break;
                        case 5:
                                e = searchB(nb);
                                break;
                        case 6:
                                e = searchSh2(nb);
                                break;
                        case 7:
                                e = searchVdB(nb);
                                break;
                        case 8:
                                e = searchRCW(nb);
                                break;
                        case 9:
                                e = searchLDN(nb);
                                break;
                        case 10:
                                e = searchLBN(nb);
                                break;
                        case 11:
                                e = searchNGC(nb);
                                break;
                        case 12:
                                e = searchPGC(nb);
                                break;
                        case 13:
                                e = searchUGC(nb);
                                break;
                        case 14:
                                e = searchCed(cdes);
                                break;
                        case 15:
                                e = searchArp(nb);
                                break;
                        case 16:
                                e = searchVV(nb);
                                break;
                        case 17:
                                e = searchPK(cdes);
                                break;
                        case 18:
                                e = searchPNG(cdes);
                                break;
                        case 19:
                                e = searchSNRG(cdes);
                                break;
                        case 20:
                                e = searchACO(cdes);
                                break;
                        case 21:
                                e = searchHCG(cdes);
                                break;
                        case 22:
                                e = searchESO(cdes);
                                break;
                        case 23:
                                e = searchVdBH(cdes);
                                break;
                        case 24:
                                e = searchDWB(nb);
                                break;
                        case 25:
                                e = searchTr(nb);
                                break;
                        case 26:
                                e = searchSt(nb);
                                break;
                        case 27:
                                e = searchRu(nb);
                                break;
                        case 28:
                                e = searchVdBHa(nb);
                                break;
                        default:
                                e = searchDSO(nb);
                                break;
                }

                if (!e.isNull())
                {
                        static const QRegularExpression transRx("_[(]\"(.*)\"[)](\\s*#.*)?"); // optional comments after name.
                        QRegularExpressionMatch transMatch=transRx.match(name);
                        if (transMatch.hasMatch())
                        {
                                QString propName = transMatch.captured(1).trimmed();
                                QString currName = e->getEnglishName();
                                if (currName.isEmpty())
                                        e->setProperName(propName);
                                else if (currName!=propName)
                                        e->addNameAlias(propName);
                        }
                        readOk++;
                }
                else
                        nodata.append(QString("%1 %2").arg(ref.trimmed(), cdes.trimmed()));
        }
        dsoNameFile.close();
        qDebug().noquote() << "Loaded" << readOk << "/" << totalRecords << "DSO name records successfully";

        int err = nodata.size();
        if (err>0)
                qDebug().noquote() << "WARNING - No position data for" << err << "objects:" << nodata.join(", ");

        return true;
}

bool NebulaMgr::loadDSODiscoveryData(const QString &filename)
{
        qDebug() << "Loading DSO discovery data ...";
        QFile dsoDiscoveryFile(filename);
        if (!dsoDiscoveryFile.open(QIODevice::ReadOnly | QIODevice::Text))
        {
                qWarning().noquote() << "DSO discovery data file" << QDir::toNativeSeparators(filename) << "not found.";
                return false;
        }

        int readOk = 0;
        int totalRecords = 0;
        QString record, dso, dYear, dName;
        NebulaP e;
        while (!dsoDiscoveryFile.atEnd())
        {
                record = QString::fromUtf8(dsoDiscoveryFile.readLine());
                if (record.startsWith("//") || record.startsWith("#") || record.isEmpty())
                        continue;

                totalRecords++;
                #if (QT_VERSION>=QT_VERSION_CHECK(5, 14, 0))
                QStringList list=record.split("\t", Qt::KeepEmptyParts);
                #else
                QStringList list=record.split("\t", QString::KeepEmptyParts);
                #endif

                dso        = list.at(0).trimmed();
                dYear        = list.at(1).trimmed();
                dName        = list.at(2).trimmed();

                e = search(dso);
                if (e.isNull()) // maybe this is inner number of DSO
                        e = searchDSO(dso.toUInt());

                if (!e.isNull())
                {
                        e->setDiscoveryData(dName, dYear);
                        readOk++;
                }
        }
        dsoDiscoveryFile.close();
        qDebug().noquote() << "Loaded" << readOk << "/" << totalRecords << "DSO discovery records successfully";
        return true;
}

bool NebulaMgr::loadDSOOutlines(const QString &filename)
{
        qDebug() << "Loading DSO outline data ...";
        QFile dsoOutlineFile(filename);
        if (!dsoOutlineFile.open(QIODevice::ReadOnly | QIODevice::Text))
        {
                qWarning().noquote() << "DSO outline data file" << QDir::toNativeSeparators(filename) << "not found.";
                return false;
        }

        double RA, DE;
        int i, readOk = 0;
        Vec3d XYZ;
        std::vector<Vec3d> *points = Q_NULLPTR;
        typedef QPair<double, double> coords;
        coords point, fpoint;
        QVector<coords> outline;
        QString record, command, dso;
        NebulaP e;
        // Read the outlines data of the DSO
        static const QRegularExpression commentRx("^(\\s*#.*|\\s*)$");
        while (!dsoOutlineFile.atEnd())
        {
                record = QString::fromUtf8(dsoOutlineFile.readLine());
                if (commentRx.match(record).hasMatch())
                        continue;

#if (QT_VERSION>=QT_VERSION_CHECK(6,0,0))
                // bytes 1 - 8, RA
                RA = record.first(8).toDouble();
                // bytes 9 -18, DE
                DE = record.sliced(9, 10).toDouble();
#else
                // bytes 1 - 8, RA
                RA = record.leftRef(8).toDouble();
                // bytes 9 -18, DE
                DE = record.midRef(9, 10).toDouble();
#endif
                // bytes 19-25, command
                command = record.mid(19, 7).trimmed();
                // bytes 26, designation of DSO
                dso = record.mid(26).trimmed();

                RA*=M_PI/12.;     // Convert from hours to rad
                DE*=M_PI/180.;    // Convert from deg to rad

                if (command.contains("start", Qt::CaseInsensitive))
                {
                        outline.clear();
                        e = search(dso);
                        if (e.isNull()) // maybe this is inner number of DSO
                                e = searchDSO(dso.toUInt());

                        point.first  = RA;
                        point.second = DE;
                        outline.append(point);
                        fpoint = point;
                }

                if (command.contains("vertex", Qt::CaseInsensitive))
                {
                        point.first  = RA;
                        point.second = DE;
                        outline.append(point);
                }

                if (command.contains("end", Qt::CaseInsensitive))
                {
                        point.first  = RA;
                        point.second = DE;
                        outline.append(point);
                        outline.append(fpoint);

                        if (!e.isNull())
                        {
                                points = new std::vector<Vec3d>;
                                for (i = 0; i < outline.size(); i++)
                                {
                                        // Calc the Cartesian coord with RA and DE
                                        point = outline.at(i);
                                        StelUtils::spheToRect(point.first, point.second, XYZ);
                                        points->push_back(XYZ);
                                }

                                e->outlineSegments.push_back(points);
                        }
                        readOk++;
                }
        }
        dsoOutlineFile.close();
        qDebug().noquote() << "Loaded" << readOk << "DSO outline records successfully";
        return true;
}

void NebulaMgr::updateSkyCulture(const QString& skyCultureDir)
{
        QString namesFile = StelFileMgr::findFile("skycultures/" + skyCultureDir + "/dso_names.fab");

        for (const auto& n : qAsConst(dsoArray))
                n->removeAllNames();

        if (namesFile.isEmpty())
        {
                QString setName = "default";
                QString dsoNamesPath = StelFileMgr::findFile("nebulae/" + setName + "/names.dat");
                if (dsoNamesPath.isEmpty())
                {
                        qWarning().noquote() << "ERROR while loading deep-sky names data set " << setName;
                        return;
                }
                loadDSONames(dsoNamesPath);
        }
        else
        {
                // Open file
                QFile dsoNamesFile(namesFile);
                if (!dsoNamesFile.open(QIODevice::ReadOnly | QIODevice::Text))
                {
                        qDebug().noquote() << "Cannot open file" << QDir::toNativeSeparators(namesFile);
                        return;
                }

                // Now parse the file
                // lines to ignore which start with a # or are empty
                static const QRegularExpression commentRx("^(\\s*#.*|\\s*)$");

                // lines which look like records - we use the RE to extract the fields
                // which will be available in recMatch.capturedTexts()
                static const QRegularExpression recRx("^\\s*([\\w\\s\\-\\+\\.]+)\\s*\\|[_]*[(]\"(.*)\"[)]\\s*([\\,\\d\\s]*)");

                QString record, dsoId, nativeName;
                int totalRecords=0;
                int readOk=0;
                int lineNumber=0;
                while (!dsoNamesFile.atEnd())
                {
                        record = QString::fromUtf8(dsoNamesFile.readLine()).trimmed();
                        lineNumber++;

                        // Skip comments
                        if (commentRx.match(record).hasMatch())
                                continue;

                        totalRecords++;

                        QRegularExpressionMatch recMatch=recRx.match(record);
                        if (!recMatch.hasMatch())
                        {
                                qWarning().noquote() << "ERROR - cannot parse record at line" << lineNumber << "in native deep-sky object names file" << QDir::toNativeSeparators(namesFile);
                        }
                        else
                        {
                                dsoId = recMatch.captured(1).trimmed();
                                nativeName = recMatch.captured(2).trimmed(); // Use translatable text
                                NebulaP e = search(dsoId);
                                if (!e.isNull()) // avoid crash
                                {
                                        QString currentName = e->getEnglishName();
                                        if (currentName.isEmpty()) // Set native name of DSO
                                                e->setProperName(nativeName);
                                        else if (currentName!=nativeName) // Add traditional (well-known?) name of DSO as alias
                                                e->addNameAlias(nativeName);
                                }
                                else
                                        qWarning().noquote() << "ERROR - could NOT found DSO " << dsoId;

                                readOk++;
                        }
                }
                dsoNamesFile.close();
                qDebug().noquote() << "Loaded" << readOk << "/" << totalRecords << "native names of deep-sky objects";
        }

        updateI18n();
}

void NebulaMgr::updateI18n()
{
        const StelTranslator& trans = StelApp::getInstance().getLocaleMgr().getSkyTranslator();
        for (const auto& n : qAsConst(dsoArray))
                n->translateName(trans);
}


//! Return the matching Nebula object's pointer if exists or an "empty" StelObjectP
StelObjectP NebulaMgr::searchByNameI18n(const QString& nameI18n) const
{
        QString objw = nameI18n.toUpper();

        // Search by common names
        for (const auto& n : qAsConst(dsoArray))
        {
                QString objwcap = n->nameI18.toUpper();
                if (objwcap==objw)
                        return qSharedPointerCast<StelObject>(n);
        }

        // Search by aliases of common names
        for (const auto& n : qAsConst(dsoArray))
        {
                for (auto &objwcapa : n->nameI18Aliases)
                {
                        if (objwcapa.toUpper()==objw)
                                return qSharedPointerCast<StelObject>(n);
                }
        }

        // Search by designation
        NebulaP n = searchByDesignation(objw);
        return qSharedPointerCast<StelObject>(n);
}


//! Return the matching Nebula object's pointer if exists or an "empty" StelObjectP
StelObjectP NebulaMgr::searchByName(const QString& name) const
{
        QString objw = name.toUpper();

        // Search by common names
        for (const auto& n : dsoArray)
        {
                QString objwcap = n->englishName.toUpper();
                if (objwcap==objw)
                        return qSharedPointerCast<StelObject>(n);
        }

        if (getFlagAdditionalNames())
        {
                // Search by aliases of common names
                for (const auto& n : dsoArray)
                {
                        for (auto &objwcapa : n->englishAliases)
                        {
                                if (objwcapa.toUpper()==objw)
                                        return qSharedPointerCast<StelObject>(n);
                        }
                }
        }

        // Search by designation
        NebulaP n = searchByDesignation(objw);
        return qSharedPointerCast<StelObject>(n);
}

//! Return the matching Nebula object's pointer if exists or Q_NULLPTR
//! TODO Decide whether empty StelObjectP or Q_NULLPTR is the better return type and select the same for both.
NebulaP NebulaMgr::searchByDesignation(const QString &designation) const
{
        NebulaP n;
        QString uname = designation.toUpper();
        // If no match found, try search by catalog reference
        static const QRegularExpression catNumRx("^(M|NGC|IC|C|B|VDB|RCW|LDN|LBN|CR|MEL|PGC|UGC|ARP|VV|DWB|TR|TRUMPLER|ST|STOCK|RU|RUPRECHT|VDB-HA)\\s*(\\d+)$");
        QRegularExpressionMatch catNumMatch=catNumRx.match(uname);
        if (catNumMatch.hasMatch())
        {
                QString cat = catNumMatch.captured(1);
                unsigned int num = catNumMatch.captured(2).toUInt();
                if (cat == "M") n = searchM(num);
                if (cat == "NGC") n = searchNGC(num);
                if (cat == "IC") n = searchIC(num);
                if (cat == "C") n = searchC(num);
                if (cat == "B") n = searchB(num);
                if (cat == "VDB-HA") n = searchVdBHa(num);
                if (cat == "VDB") n = searchVdB(num);
                if (cat == "RCW") n = searchRCW(num);
                if (cat == "LDN") n = searchLDN(num);
                if (cat == "LBN") n = searchLBN(num);
                if (cat == "CR") n = searchCr(num);
                if (cat == "MEL") n = searchMel(num);
                if (cat == "PGC") n = searchPGC(num);
                if (cat == "UGC") n = searchUGC(num);
                if (cat == "ARP") n = searchArp(num);
                if (cat == "VV") n = searchVV(num);
                if (cat == "DWB") n = searchDWB(num);
                if (cat == "TR" || cat == "TRUMPLER") n = searchTr(num);
                if (cat == "ST" || cat == "STOCK") n = searchSt(num);
                if (cat == "RU" || cat == "RUPRECHT") n = searchRu(num);
        }
        static const QRegularExpression dCatNumRx("^(SH)\\s*\\d-\\s*(\\d+)$");
        QRegularExpressionMatch dCatNumMatch=dCatNumRx.match(uname);
        if (dCatNumMatch.hasMatch())
        {
                QString dcat = dCatNumMatch.captured(1);
                unsigned int dnum = dCatNumMatch.captured(2).toUInt();

                if (dcat == "SH") n = searchSh2(dnum);
        }
        static const QRegularExpression sCatNumRx("^(CED|PK|ACO|ABELL|HCG|ESO|VDBH)\\s*(.+)$");
        QRegularExpressionMatch sCatNumMatch=sCatNumRx.match(uname);
        if (sCatNumMatch.hasMatch())
        {
                QString cat = sCatNumMatch.captured(1);
                QString num = sCatNumMatch.captured(2).trimmed();

                if (cat == "CED") n = searchCed(num);
                if (cat == "PK") n = searchPK(num);
                if (cat == "ACO" || cat == "ABELL") n = searchACO(num);
                if (cat == "HCG") n = searchHCG(num);
                if (cat == "ESO") n = searchESO(num);
                if (cat == "VDBH") n = searchVdBH(num);
        }
        static const QRegularExpression gCatNumRx("^(PN|SNR)\\s*G(.+)$");
        QRegularExpressionMatch gCatNumMatch=gCatNumRx.match(uname);
        if (gCatNumMatch.hasMatch())
        {
                QString cat = gCatNumMatch.captured(1);
                QString num = gCatNumMatch.captured(2).trimmed();

                if (cat == "PN") n = searchPNG(num);
                if (cat == "SNR") n = searchSNRG(num);
        }

        return n;
}

//! Find and return the list of at most maxNbItem objects auto-completing the passed object name
QStringList NebulaMgr::listMatchingObjects(const QString& objPrefix, int maxNbItem, bool useStartOfWords) const
{
        QStringList result;
        if (maxNbItem <= 0)
                return result;

        QString objw = objPrefix.toUpper();

        // Search by Messier objects number (possible formats are "M31" or "M 31")
        if (objw.size()>=1 && objw.at(0)=='M' && objw.left(3)!="MEL")
        {
                for (const auto& n : dsoArray)
                {
                        if (n->M_nb==0) continue;
                        QString constw = QString("M%1").arg(n->M_nb);
                        QString constws = constw.mid(0, objw.size());
                        if (constws.toUpper()==objw)
                        {
                                result << constws;
                                continue;        // Prevent adding both forms for name
                        }
                        constw = QString("M %1").arg(n->M_nb);
                        constws = constw.mid(0, objw.size());
                        if (constws.toUpper()==objw)
                                result << constw;
                }
        }

        // Search by Melotte objects number (possible formats are "Mel31" or "Mel 31")
        if (objw.size()>=1 && objw.left(3)=="MEL")
        {
                for (const auto& n : dsoArray)
                {
                        if (n->Mel_nb==0) continue;
                        QString constw = QString("Mel%1").arg(n->Mel_nb);
                        QString constws = constw.mid(0, objw.size());
                        QString constws2 = QString("Melotte%1").arg(n->Mel_nb).mid(0, objw.size());
                        if (constws.toUpper()==objw || constws2.toUpper()==objw)
                        {
                                result << constws;
                                continue;        // Prevent adding both forms for name
                        }
                        constw = QString("Mel %1").arg(n->Mel_nb);
                        constws = constw.mid(0, objw.size());
                        constws2 = QString("Melotte %1").arg(n->Mel_nb).mid(0, objw.size());
                        if (constws.toUpper()==objw || constws2.toUpper()==objw)
                                result << constw;
                }
        }

        // Search by IC objects number (possible formats are "IC466" or "IC 466")
        if (objw.size()>=1 && objw.left(2)=="IC")
        {
                for (const auto& n : dsoArray)
                {
                        if (n->IC_nb==0) continue;
                        QString constw = QString("IC%1").arg(n->IC_nb);
                        QString constws = constw.mid(0, objw.size());
                        if (constws.toUpper()==objw)
                        {
                                result << constws;
                                continue;        // Prevent adding both forms for name
                        }
                        constw = QString("IC %1").arg(n->IC_nb);
                        constws = constw.mid(0, objw.size());
                        if (constws.toUpper()==objw)
                                result << constw;
                }
        }

        // Search by NGC numbers (possible formats are "NGC31" or "NGC 31")
        for (const auto& n : dsoArray)
        {
                if (n->NGC_nb==0) continue;
                QString constw = QString("NGC%1").arg(n->NGC_nb);
                QString constws = constw.mid(0, objw.size());
                if (constws.toUpper()==objw)
                {
                        result << constws;
                        continue;
                }
                constw = QString("NGC %1").arg(n->NGC_nb);
                constws = constw.mid(0, objw.size());
                if (constws.toUpper()==objw)
                        result << constw;
        }

        // Search by PGC object numbers (possible formats are "PGC31" or "PGC 31")
        if (objw.size()>=1 && objw.left(3)=="PGC")
        {
                for (const auto& n : dsoArray)
                {
                        if (n->PGC_nb==0) continue;
                        QString constw = QString("PGC%1").arg(n->PGC_nb);
                        QString constws = constw.mid(0, objw.size());
                        if (constws.toUpper()==objw)
                        {
                                result << constws;        // Prevent adding both forms for name
                                continue;
                        }
                        constw = QString("PGC %1").arg(n->PGC_nb);
                        constws = constw.mid(0, objw.size());
                        if (constws.toUpper()==objw)
                                result << constw;
                }
        }

        // Search by UGC object numbers (possible formats are "UGC31" or "UGC 31")
        if (objw.size()>=1 && objw.left(3)=="UGC")
        {
                for (const auto& n : dsoArray)
                {
                        if (n->UGC_nb==0) continue;
                        QString constw = QString("UGC%1").arg(n->UGC_nb);
                        QString constws = constw.mid(0, objw.size());
                        if (constws.toUpper()==objw)
                        {
                                result << constws;
                                continue;        // Prevent adding both forms for name
                        }
                        constw = QString("UGC %1").arg(n->UGC_nb);
                        constws = constw.mid(0, objw.size());
                        if (constws.toUpper()==objw)
                                result << constw;
                }
        }

        // Search by Caldwell objects number (possible formats are "C31" or "C 31")
        if (objw.size()>=1 && objw.at(0)=='C' && objw.left(2)!="CR" && objw.left(2)!="CE")
        {
                for (const auto& n : dsoArray)
                {
                        if (n->C_nb==0) continue;
                        QString constw = QString("C%1").arg(n->C_nb);
                        QString constws = constw.mid(0, objw.size());
                        if (constws.toUpper()==objw)
                        {
                                result << constws;
                                continue;        // Prevent adding both forms for name
                        }
                        constw = QString("C %1").arg(n->C_nb);
                        constws = constw.mid(0, objw.size());
                        if (constws.toUpper()==objw)
                                result << constw;
                }
        }

        // Search by Collinder objects number (possible formats are "Cr31" or "Cr 31")
        if (objw.size()>=1 && (objw.left(2)=="CR" || objw.left(9)=="COLLINDER"))
        {
                for (const auto& n : dsoArray)
                {
                        if (n->Cr_nb==0) continue;
                        QString constw = QString("Cr%1").arg(n->Cr_nb);
                        QString constws = constw.mid(0, objw.size());
                        QString constws2 = QString("Collinder%1").arg(n->Cr_nb).mid(0, objw.size());
                        if (constws.toUpper()==objw || constws2.toUpper()==objw)
                        {
                                result << constws;
                                continue;        // Prevent adding both forms for name
                        }
                        constw = QString("Cr %1").arg(n->Cr_nb);
                        constws = constw.mid(0, objw.size());
                        constws2 = QString("Collinder %1").arg(n->Cr_nb).mid(0, objw.size());
                        if (constws.toUpper()==objw || constws2.toUpper()==objw)
                                result << constw;
                }
        }

        // Search by Ced objects number (possible formats are "Ced31" or "Ced 31")
        if (objw.size()>=1 && objw.left(3)=="CED")
        {
                for (const auto& n : dsoArray)
                {
                        if (n->Ced_nb.isEmpty()) continue;
                        QString constw = QString("Ced%1").arg(n->Ced_nb.trimmed());
                        QString constws = constw.mid(0, objw.size());
                        if (constws.toUpper()==objw)
                        {
                                result << constws;
                                continue;        // Prevent adding both forms for name
                        }
                        constw = QString("Ced %1").arg(n->Ced_nb.trimmed());
                        constws = constw.mid(0, objw.size());
                        if (constws.toUpper()==objw)
                                result << constw;
                }
        }

        // Search by Barnard objects number (possible formats are "B31" or "B 31")
        if (objw.size()>=1 && objw.at(0)=='B')
        {
                for (const auto& n : dsoArray)
                {
                        if (n->B_nb==0) continue;
                        QString constw = QString("B%1").arg(n->B_nb);
                        QString constws = constw.mid(0, objw.size());
                        if (constws.toUpper()==objw)
                        {
                                result << constws;
                                continue;        // Prevent adding both forms for name
                        }
                        constw = QString("B %1").arg(n->B_nb);
                        constws = constw.mid(0, objw.size());
                        if (constws.toUpper()==objw)
                                result << constw;
                }
        }

        // Search by Sharpless objects number (possible formats are "Sh2-31" or "Sh 2-31")
        if (objw.size()>=1 && objw.left(2)=="SH")
        {
                for (const auto& n : dsoArray)
                {
                        if (n->Sh2_nb==0) continue;
                        QString constw = QString("SH2-%1").arg(n->Sh2_nb);
                        QString constws = constw.mid(0, objw.size());
                        if (constws.toUpper()==objw)
                        {
                                result << constws;
                                continue;        // Prevent adding both forms for name
                        }
                        constw = QString("SH 2-%1").arg(n->Sh2_nb);
                        constws = constw.mid(0, objw.size());
                        if (constws.toUpper()==objw)
                                result << constw;
                }
        }

        // Search by van den Bergh objects number (possible formats are "vdB31" or "vdB 31")
        if (objw.size()>=1 && objw.left(3)=="VDB" && objw.left(6)!="VDB-HA" && objw.left(4)!="VDBH")
        {
                for (const auto& n : dsoArray)
                {
                        if (n->VdB_nb==0) continue;
                        QString constw = QString("vdB%1").arg(n->VdB_nb);
                        QString constws = constw.mid(0, objw.size());
                        if (constws.toUpper()==objw)
                        {
                                result << constws;
                                continue;        // Prevent adding both forms for name
                        }
                        constw = QString("vdB %1").arg(n->VdB_nb);
                        constws = constw.mid(0, objw.size());
                        if (constws.toUpper()==objw)
                                result << constw;
                }
        }

        // Search by RCW objects number (possible formats are "RCW31" or "RCW 31")
        if (objw.size()>=1 && objw.left(3)=="RCW")
        {
                for (const auto& n : dsoArray)
                {
                        if (n->RCW_nb==0) continue;
                        QString constw = QString("RCW%1").arg(n->RCW_nb);
                        QString constws = constw.mid(0, objw.size());
                        if (constws.toUpper()==objw)
                        {
                                result << constws;
                                continue;        // Prevent adding both forms for name
                        }
                        constw = QString("RCW %1").arg(n->RCW_nb);
                        constws = constw.mid(0, objw.size());
                        if (constws.toUpper()==objw)
                                result << constw;
                }
        }

        // Search by LDN objects number (possible formats are "LDN31" or "LDN 31")
        if (objw.size()>=1 && objw.left(3)=="LDN")
        {
                for (const auto& n : dsoArray)
                {
                        if (n->LDN_nb==0) continue;
                        QString constw = QString("LDN%1").arg(n->LDN_nb);
                        QString constws = constw.mid(0, objw.size());
                        if (constws.toUpper()==objw)
                        {
                                result << constws;
                                continue;        // Prevent adding both forms for name
                        }
                        constw = QString("LDN %1").arg(n->LDN_nb);
                        constws = constw.mid(0, objw.size());
                        if (constws.toUpper()==objw)
                                result << constw;
                }
        }

        // Search by LBN objects number (possible formats are "LBN31" or "LBN 31")
        if (objw.size()>=1 && objw.left(3)=="LBN")
        {
                for (const auto& n : dsoArray)
                {
                        if (n->LBN_nb==0) continue;
                        QString constw = QString("LBN%1").arg(n->LBN_nb);
                        QString constws = constw.mid(0, objw.size());
                        if (constws.toUpper()==objw)
                        {
                                result << constws;
                                continue;        // Prevent adding both forms for name
                        }
                        constw = QString("LBN %1").arg(n->LBN_nb);
                        constws = constw.mid(0, objw.size());
                        if (constws.toUpper()==objw)
                                result << constw;
                }
        }

        // Search by Arp objects number
        if (objw.size()>=1 && objw.left(3)=="ARP")
        {
                for (const auto& n : dsoArray)
                {
                        if (n->Arp_nb==0) continue;
                        QString constw = QString("Arp%1").arg(n->Arp_nb);
                        QString constws = constw.mid(0, objw.size());
                        if (constws.toUpper()==objw)
                        {
                                result << constws;
                                continue;        // Prevent adding both forms for name
                        }
                        constw = QString("Arp %1").arg(n->Arp_nb);
                        constws = constw.mid(0, objw.size());
                        if (constws.toUpper()==objw)
                                result << constw;
                }
        }

        // Search by VV objects number
        if (objw.size()>=1 && objw.left(2)=="VV")
        {
                for (const auto& n : dsoArray)
                {
                        if (n->VV_nb==0) continue;
                        QString constw = QString("VV%1").arg(n->VV_nb);
                        QString constws = constw.mid(0, objw.size());
                        if (constws.toUpper()==objw)
                        {
                                result << constws;
                                continue;        // Prevent adding both forms for name
                        }
                        constw = QString("VV %1").arg(n->VV_nb);
                        constws = constw.mid(0, objw.size());
                        if (constws.toUpper()==objw)
                                result << constw;
                }
        }

        // Search by PK objects number
        if (objw.size()>=1 && objw.left(2)=="PK")
        {
                for (const auto& n : dsoArray)
                {
                        if (n->PK_nb.isEmpty()) continue;
                        QString constw = QString("PK%1").arg(n->PK_nb.trimmed());
                        QString constws = constw.mid(0, objw.size());
                        if (constws.toUpper()==objw)
                        {
                                result << constws;
                                continue;        // Prevent adding both forms for name
                        }
                        constw = QString("PK %1").arg(n->PK_nb.trimmed());
                        constws = constw.mid(0, objw.size());
                        if (constws.toUpper()==objw)
                                result << constw;
                }
        }

        // Search by PN G objects number
        if (objw.size()>=1 && objw.left(2)=="PN")
        {
                for (const auto& n : dsoArray)
                {
                        if (n->PNG_nb.isEmpty()) continue;
                        QString constw = QString("PNG%1").arg(n->PNG_nb.trimmed());
                        QString constws = constw.mid(0, objw.size());
                        if (constws.toUpper()==objw)
                        {
                                result << constws;
                                continue;        // Prevent adding both forms for name
                        }
                        constw = QString("PN G%1").arg(n->PNG_nb.trimmed());
                        constws = constw.mid(0, objw.size());
                        if (constws.toUpper()==objw)
                                result << constw;
                }
        }

        // Search by SNR G objects number
        if (objw.size()>=1 && objw.left(3)=="SNR")
        {
                for (const auto& n : dsoArray)
                {
                        if (n->SNRG_nb.isEmpty()) continue;
                        QString constw = QString("SNRG%1").arg(n->SNRG_nb.trimmed());
                        QString constws = constw.mid(0, objw.size());
                        if (constws.toUpper()==objw)
                        {
                                result << constws;
                                continue;        // Prevent adding both forms for name
                        }
                        constw = QString("SNR G%1").arg(n->SNRG_nb.trimmed());
                        constws = constw.mid(0, objw.size());
                        if (constws.toUpper()==objw)
                                result << constw;
                }
        }

        // Search by ACO (Abell) objects number
        if (objw.size()>=1 && (objw.left(5)=="ABELL" || objw.left(3)=="ACO"))
        {
                for (const auto& n : dsoArray)
                {
                        if (n->ACO_nb.isEmpty()) continue;
                        QString constw = QString("Abell%1").arg(n->ACO_nb.trimmed());
                        QString constws = constw.mid(0, objw.size());
                        QString constws2 = QString("ACO%1").arg(n->ACO_nb.trimmed()).mid(0, objw.size());
                        if (constws.toUpper()==objw || constws2.toUpper()==objw)
                        {
                                result << constws;
                                continue;        // Prevent adding both forms for name
                        }
                        constw = QString("Abell %1").arg(n->ACO_nb.trimmed());
                        constws = constw.mid(0, objw.size());
                        constws2 = QString("ACO %1").arg(n->ACO_nb.trimmed()).mid(0, objw.size());
                        if (constws.toUpper()==objw || constws2.toUpper()==objw)
                                result << constw;
                }
        }

        // Search by HCG objects number
        if (objw.size()>=1 && objw.left(3)=="HCG")
        {
                for (const auto& n : dsoArray)
                {
                        if (n->HCG_nb.isEmpty()) continue;
                        QString constw = QString("HCG%1").arg(n->HCG_nb.trimmed());
                        QString constws = constw.mid(0, objw.size());
                        if (constws.toUpper()==objw)
                        {
                                result << constws;
                                continue;        // Prevent adding both forms for name
                        }
                        constw = QString("HCG %1").arg(n->HCG_nb.trimmed());
                        constws = constw.mid(0, objw.size());
                        if (constws.toUpper()==objw)
                                result << constw;
                }
        }

        // Search by ESO objects number
        if (objw.size()>=1 && objw.left(3)=="ESO")
        {
                for (const auto& n : dsoArray)
                {
                        if (n->ESO_nb.isEmpty()) continue;
                        QString constw = QString("ESO%1").arg(n->ESO_nb.trimmed());
                        QString constws = constw.mid(0, objw.size());
                        if (constws.toUpper()==objw)
                        {
                                result << constws;
                                continue;        // Prevent adding both forms for name
                        }
                        constw = QString("ESO %1").arg(n->ESO_nb.trimmed());
                        constws = constw.mid(0, objw.size());
                        if (constws.toUpper()==objw)
                                result << constw;
                }
        }

        // Search by VdBH objects number
        if (objw.size()>=1 && objw.left(4)=="VDBH")
        {
                for (const auto& n : dsoArray)
                {
                        if (n->VdBH_nb.isEmpty()) continue;
                        QString constw = QString("vdBH%1").arg(n->VdBH_nb.trimmed());
                        QString constws = constw.mid(0, objw.size());
                        if (constws.toUpper()==objw)
                        {
                                result << constws;
                                continue;        // Prevent adding both forms for name
                        }
                        constw = QString("vdBH %1").arg(n->VdBH_nb.trimmed());
                        constws = constw.mid(0, objw.size());
                        if (constws.toUpper()==objw)
                                result << constw;
                }
        }

        // Search by DWB objects number
        if (objw.size()>=1 && objw.left(3)=="DWB")
        {
                for (const auto& n : dsoArray)
                {
                        if (n->DWB_nb==0) continue;
                        QString constw = QString("DWB%1").arg(n->DWB_nb);
                        QString constws = constw.mid(0, objw.size());
                        if (constws.toUpper()==objw)
                        {
                                result << constws;
                                continue;        // Prevent adding both forms for name
                        }
                        constw = QString("DWB %1").arg(n->DWB_nb);
                        constws = constw.mid(0, objw.size());
                        if (constws.toUpper()==objw)
                                result << constw;
                }
        }

        // Search by Tr (Trumpler) objects number
        if (objw.size()>=1 && (objw.left(8)=="TRUMPLER" || objw.left(2)=="TR"))
        {
                for (const auto& n : dsoArray)
                {
                        if (n->Tr_nb==0) continue;
                        QString constw = QString("Tr%1").arg(n->Tr_nb);
                        QString constws = constw.mid(0, objw.size());
                        QString constws2 = QString("Trumpler%1").arg(n->Tr_nb).mid(0, objw.size());
                        if (constws.toUpper()==objw || constws2.toUpper()==objw)
                        {
                                result << constws;
                                continue;        // Prevent adding both forms for name
                        }
                        constw = QString("Tr %1").arg(n->Tr_nb);
                        constws = constw.mid(0, objw.size());
                        constws2 = QString("Trumpler %1").arg(n->Tr_nb).mid(0, objw.size());
                        if (constws.toUpper()==objw || constws2.toUpper()==objw)
                                result << constw;
                }
        }

        // Search by St (Stock) objects number
        if (objw.size()>=1 && (objw.left(5)=="STOCK" || objw.left(2)=="ST"))
        {
                for (const auto& n : dsoArray)
                {
                        if (n->St_nb==0) continue;
                        QString constw = QString("St%1").arg(n->St_nb);
                        QString constws = constw.mid(0, objw.size());
                        QString constws2 = QString("Stock%1").arg(n->St_nb).mid(0, objw.size());
                        if (constws.toUpper()==objw || constws2.toUpper()==objw)
                        {
                                result << constws;
                                continue;        // Prevent adding both forms for name
                        }
                        constw = QString("St %1").arg(n->St_nb);
                        constws = constw.mid(0, objw.size());
                        constws2 = QString("Stock %1").arg(n->St_nb).mid(0, objw.size());
                        if (constws.toUpper()==objw || constws2.toUpper()==objw)
                                result << constw;
                }
        }

        // Search by Ru (Ruprecht) objects number
        if (objw.size()>=1 && (objw.left(8)=="RUPRECHT" || objw.left(2)=="RU"))
        {
                for (const auto& n : dsoArray)
                {
                        if (n->Ru_nb==0) continue;
                        QString constw = QString("Ru%1").arg(n->Ru_nb);
                        QString constws = constw.mid(0, objw.size());
                        QString constws2 = QString("Ruprecht%1").arg(n->Ru_nb).mid(0, objw.size());
                        if (constws.toUpper()==objw || constws2.toUpper()==objw)
                        {
                                result << constws;
                                continue;        // Prevent adding both forms for name
                        }
                        constw = QString("Ru %1").arg(n->Ru_nb);
                        constws = constw.mid(0, objw.size());
                        constws2 = QString("Ruprecht %1").arg(n->Ru_nb).mid(0, objw.size());
                        if (constws.toUpper()==objw || constws2.toUpper()==objw)
                                result << constw;
                }
        }

        // Search by van den Bergh-Hagen Catalogue objects number
        if (objw.size()>=1 && objw.left(6)=="VDB-HA")
        {
                for (const auto& n : dsoArray)
                {
                        if (n->VdBHa_nb==0) continue;
                        QString constw = QString("vdB-Ha%1").arg(n->VdBHa_nb);
                        QString constws = constw.mid(0, objw.size());
                        if (constws.toUpper()==objw)
                        {
                                result << constws;
                                continue;        // Prevent adding both forms for name
                        }
                        constw = QString("vdB-Ha %1").arg(n->VdBHa_nb);
                        constws = constw.mid(0, objw.size());
                        if (constws.toUpper()==objw)
                                result << constw;
                }
        }

        // Search by common names and aliases
        QStringList names;
        for (const auto& n : dsoArray)
        {
                names.append(n->nameI18);
                names.append(n->englishName);
                if (getFlagAdditionalNames())
                {
                        QStringList nameList = n->nameI18Aliases;
                        for (const auto &name : nameList)
                                names.append(name);

                        nameList = n->englishAliases;
                        for (const auto &name : qAsConst(nameList))
                                names.append(name);
                }
        }

        QString fullMatch = "";
        for (const auto& name : qAsConst(names))
        {
                if (!matchObjectName(name, objPrefix, useStartOfWords))
                        continue;

                if (name==objPrefix)
                        fullMatch = name;
                else
                        result.append(name);
        }

        result.sort();
        if (!fullMatch.isEmpty())
                result.prepend(fullMatch);

        if (result.size() > maxNbItem)
                result.erase(result.begin() + maxNbItem, result.end());

        return result;
}

QStringList NebulaMgr::listAllObjects(bool inEnglish) const
{
        QStringList result;
        for (const auto& n : dsoArray)
        {
                if (!n->getEnglishName().isEmpty())
                {
                        if (inEnglish)
                                result << n->getEnglishName();
                        else
                                result << n->getNameI18n();
                }
        }
        return result;
}

QStringList NebulaMgr::listAllObjectsByType(const QString &objType, bool inEnglish) const
{
        QStringList result;
        int type = objType.toInt();
        switch (type)
        {
                case 0: // Bright galaxies?
                        for (const auto& n : dsoArray)
                        {
                                if (n->nType==type && qMin(n->vMag, n->bMag)<=10.f)
                                {
                                        if (!n->getEnglishName().isEmpty())
                                        {
                                                if (inEnglish)
                                                        result << n->getEnglishName();
                                                else
                                                        result << n->getNameI18n();
                                        }
                                        else
                                                result << n->getDSODesignationWIC();
                                }
                        }
                        break;
                case 100: // Messier Catalogue?
                        for (const auto& n : getDeepSkyObjectsByType(objType))
                                result << QString("M%1").arg(n->M_nb);
                        break;
                case 101: // Caldwell Catalogue?
                        for (const auto& n : getDeepSkyObjectsByType(objType))
                                result << QString("C%1").arg(n->C_nb);
                        break;
                case 102: // Barnard Catalogue?
                        for (const auto& n : getDeepSkyObjectsByType(objType))
                                result << QString("B %1").arg(n->B_nb);
                        break;
                case 103: // Sharpless Catalogue?
                        for (const auto& n : getDeepSkyObjectsByType(objType))
                                result << QString("SH 2-%1").arg(n->Sh2_nb);
                        break;
                case 104: // van den Bergh Catalogue
                        for (const auto& n : getDeepSkyObjectsByType(objType))
                                result << QString("vdB %1").arg(n->VdB_nb);
                        break;
                case 105: // RCW Catalogue
                        for (const auto& n : getDeepSkyObjectsByType(objType))
                                result << QString("RCW %1").arg(n->RCW_nb);
                        break;
                case 106: // Collinder Catalogue
                        for (const auto& n : getDeepSkyObjectsByType(objType))
                                result << QString("Cr %1").arg(n->Cr_nb);
                        break;
                case 107: // Melotte Catalogue
                        for (const auto& n : getDeepSkyObjectsByType(objType))
                                result << QString("Mel %1").arg(n->Mel_nb);
                        break;
                case 108: // New General Catalogue
                        for (const auto& n : getDeepSkyObjectsByType(objType))
                                result << QString("NGC %1").arg(n->NGC_nb);
                        break;
                case 109: // Index Catalogue
                        for (const auto& n : getDeepSkyObjectsByType(objType))
                                result << QString("IC %1").arg(n->IC_nb);
                        break;
                case 110: // Lynds' Catalogue of Bright Nebulae
                        for (const auto& n : getDeepSkyObjectsByType(objType))
                                result << QString("LBN %1").arg(n->LBN_nb);
                        break;
                case 111: // Lynds' Catalogue of Dark Nebulae
                        for (const auto& n : getDeepSkyObjectsByType(objType))
                                result << QString("LDN %1").arg(n->LDN_nb);
                        break;
                case 114: // Cederblad Catalog
                        for (const auto& n : getDeepSkyObjectsByType(objType))
                                result << QString("Ced %1").arg(n->Ced_nb);
                        break;
                case 115: // Atlas of Peculiar Galaxies (Arp)
                        for (const auto& n : getDeepSkyObjectsByType(objType))
                                result << QString("Arp %1").arg(n->Arp_nb);
                        break;
                case 116: // The Catalogue of Interacting Galaxies by Vorontsov-Velyaminov (VV)
                        for (const auto& n : getDeepSkyObjectsByType(objType))
                                result << QString("VV %1").arg(n->VV_nb);
                        break;
                case 117: // Catalogue of Galactic Planetary Nebulae (PK)
                        for (const auto& n : getDeepSkyObjectsByType(objType))
                                result << QString("PK %1").arg(n->PK_nb);
                        break;
                case 118: // Strasbourg-ESO Catalogue of Galactic Planetary Nebulae by Acker et. al. (PN G)
                        for (const auto& n : getDeepSkyObjectsByType(objType))
                                result << QString("PN G%1").arg(n->PNG_nb);
                        break;
                case 119: // A catalogue of Galactic supernova remnants by Green (SNR G)
                        for (const auto& n : getDeepSkyObjectsByType(objType))
                                result << QString("SNR G%1").arg(n->SNRG_nb);
                        break;
                case 120: // A Catalog of Rich Clusters of Galaxies by Abell et. al. (Abell (ACO))
                        for (const auto& n : getDeepSkyObjectsByType(objType))
                                result << QString("Abell %1").arg(n->ACO_nb);
                        break;
                case 121: // Hickson Compact Group by Hickson et. al. (HCG)
                        for (const auto& n : getDeepSkyObjectsByType(objType))
                                result << QString("HCG %1").arg(n->HCG_nb);
                        break;
                case 122: // ESO/Uppsala Survey of the ESO(B) Atlas (ESO)
                        for (const auto& n : getDeepSkyObjectsByType(objType))
                                result << QString("ESO %1").arg(n->ESO_nb);
                        break;
                case 123: // Catalogue of southern stars embedded in nebulosity (vdBH)
                        for (const auto& n : getDeepSkyObjectsByType(objType))
                                result << QString("vdBH %1").arg(n->VdBH_nb);
                        break;
                case 124: // Catalogue and distances of optically visible H II regions (DWB)
                        for (const auto& n : getDeepSkyObjectsByType(objType))
                                result << QString("DWB %1").arg(n->DWB_nb);
                        break;
                case 125: // Trumpler Catalogue (Tr)
                        for (const auto& n : getDeepSkyObjectsByType(objType))
                                result << QString("Tr %1").arg(n->Tr_nb);
                        break;
                case 126: // Stock Catalogue (St)
                        for (const auto& n : getDeepSkyObjectsByType(objType))
                                result << QString("St %1").arg(n->St_nb);
                        break;
                case 127: // Ruprecht Catalogue (Ru)
                        for (const auto& n : getDeepSkyObjectsByType(objType))
                                result << QString("Ru %1").arg(n->Ru_nb);
                        break;
                case 128: // van den Bergh-Hagen Catalogue (VdB-Ha)
                        for (const auto& n : getDeepSkyObjectsByType(objType))
                                result << QString("vdB-Ha %1").arg(n->VdBHa_nb);
                        break;
                case 150: // Dwarf galaxies [see NebulaList.hpp]
                {
                        for (unsigned int i = 0; i < sizeof(DWARF_GALAXIES) / sizeof(DWARF_GALAXIES[0]); i++)
                                result << QString("PGC %1").arg(DWARF_GALAXIES[i]);
                        break;
                }
                case 151: // Herschel 400 Catalogue [see NebulaList.hpp]
                {
                        for (unsigned int i = 0; i < sizeof(H400_LIST) / sizeof(H400_LIST[0]); i++)
                                result << QString("NGC %1").arg(H400_LIST[i]);
                        break;
                }
                case 152: // Jack Bennett's deep sky catalogue [see NebulaList.hpp]
                {
                        for (unsigned int i = 0; i < sizeof(BENNETT_LIST) / sizeof(BENNETT_LIST[0]); i++)
                                result << QString("NGC %1").arg(BENNETT_LIST[i]);
                        result << "Mel 105" << "IC 1459";
                        break;
                }
                case 153: // James Dunlop's deep sky catalogue [see NebulaList.hpp]
                {
                        for (unsigned int i = 0; i < sizeof(DUNLOP_LIST) / sizeof(DUNLOP_LIST[0]); i++)
                                result << QString("NGC %1").arg(DUNLOP_LIST[i]);
                        break;
                }
                default:
                {
                        for (const auto& n : dsoArray)
                        {
                                if (n->nType==type)
                                {
                                        if (!n->getEnglishName().isEmpty())
                                        {
                                                if (inEnglish)
                                                        result << n->getEnglishName();
                                                else
                                                        result << n->getNameI18n();
                                        }
                                        else
                                                result << n->getDSODesignationWIC();
                                }
                        }
                        break;
                }
        }

        result.removeDuplicates();
        return result;
}

const QList<NebulaP> NebulaMgr::getDeepSkyObjectsByType(const QString &objType) const
{
        QList<NebulaP> dso;
        int type = objType.toInt();
        switch (type)
        {
                case 100: // Messier Catalogue?
                        for (const auto& n : dsoArray)
                        {
                                if (n->M_nb>0)
                                        dso.append(n);
                        }
                        break;
                case 101: // Caldwell Catalogue?
                        for (const auto& n : dsoArray)
                        {
                                if (n->C_nb>0)
                                        dso.append(n);
                        }
                        break;
                case 102: // Barnard Catalogue?
                        for (const auto& n : dsoArray)
                        {
                                if (n->B_nb>0)
                                        dso.append(n);
                        }
                        break;
                case 103: // Sharpless Catalogue?
                        for (const auto& n : dsoArray)
                        {
                                if (n->Sh2_nb>0)
                                        dso.append(n);
                        }
                        break;
                case 104: // van den Bergh Catalogue
                        for (const auto& n : dsoArray)
                        {
                                if (n->VdB_nb>0)
                                        dso.append(n);
                        }
                        break;
                case 105: // RCW Catalogue
                        for (const auto& n : dsoArray)
                        {
                                if (n->RCW_nb>0)
                                        dso.append(n);
                        }
                        break;
                case 106: // Collinder Catalogue
                        for (const auto& n : dsoArray)
                        {
                                if (n->Cr_nb>0)
                                        dso.append(n);
                        }
                        break;
                case 107: // Melotte Catalogue
                        for (const auto& n : dsoArray)
                        {
                                if (n->Mel_nb>0)
                                        dso.append(n);
                        }
                        break;
                case 108: // New General Catalogue
                        for (const auto& n : dsoArray)
                        {
                                if (n->NGC_nb>0)
                                        dso.append(n);
                        }
                        break;
                case 109: // Index Catalogue
                        for (const auto& n : dsoArray)
                        {
                                if (n->IC_nb>0)
                                        dso.append(n);
                        }
                        break;
                case 110: // Lynds' Catalogue of Bright Nebulae
                        for (const auto& n : dsoArray)
                        {
                                if (n->LBN_nb>0)
                                        dso.append(n);
                        }
                        break;
                case 111: // Lynds' Catalogue of Dark Nebulae
                        for (const auto& n : dsoArray)
                        {
                                if (n->LDN_nb>0)
                                        dso.append(n);
                        }
                        break;
                case 112: // Principal Galaxy Catalog
                        for (const auto& n : dsoArray)
                        {
                                if (n->PGC_nb>0)
                                        dso.append(n);
                        }
                        break;
                case 113: // The Uppsala General Catalogue of Galaxies
                        for (const auto& n : dsoArray)
                        {
                                if (n->UGC_nb>0)
                                        dso.append(n);
                        }
                        break;
                case 114: // Cederblad Catalog
                        for (const auto& n : dsoArray)
                        {
                                if (!n->Ced_nb.isEmpty())
                                        dso.append(n);
                        }
                        break;
                case 115: // Atlas of Peculiar Galaxies (Arp)
                        for (const auto& n : dsoArray)
                        {
                                if (n->Arp_nb>0)
                                        dso.append(n);
                        }
                        break;
                case 116: // The Catalogue of Interacting Galaxies by Vorontsov-Velyaminov (VV)
                        for (const auto& n : dsoArray)
                        {
                                if (n->VV_nb>0)
                                        dso.append(n);
                        }
                        break;
                case 117: // Catalogue of Galactic Planetary Nebulae (PK)
                        for (const auto& n : dsoArray)
                        {
                                if (!n->PK_nb.isEmpty())
                                        dso.append(n);
                        }
                        break;
                case 118: // Strasbourg-ESO Catalogue of Galactic Planetary Nebulae by Acker et. al. (PN G)
                        for (const auto& n : dsoArray)
                        {
                                if (!n->PNG_nb.isEmpty())
                                        dso.append(n);
                        }
                        break;
                case 119: // A catalogue of Galactic supernova remnants by Green (SNR G)
                        for (const auto& n : dsoArray)
                        {
                                if (!n->SNRG_nb.isEmpty())
                                        dso.append(n);
                        }
                        break;
                case 120: // A Catalog of Rich Clusters of Galaxies by Abell et. al. (ACO)
                        for (const auto& n : dsoArray)
                        {
                                if (!n->ACO_nb.isEmpty())
                                        dso.append(n);
                        }
                        break;
                case 121: // Hickson Compact Group by Hickson et. al. (HCG)
                        for (const auto& n : dsoArray)
                        {
                                if (!n->HCG_nb.isEmpty())
                                        dso.append(n);
                        }
                        break;
                case 122: // ESO/Uppsala Survey of the ESO(B) Atlas (ESO)
                        for (const auto& n : dsoArray)
                        {
                                if (!n->ESO_nb.isEmpty())
                                        dso.append(n);
                        }
                        break;
                case 123: // Catalogue of southern stars embedded in nebulosity (VdBH)
                        for (const auto& n : dsoArray)
                        {
                                if (!n->VdBH_nb.isEmpty())
                                        dso.append(n);
                        }
                        break;
                case 124: // Catalogue and distances of optically visible H II regions (DWB)
                        for (const auto& n : dsoArray)
                        {
                                if (n->DWB_nb > 0)
                                        dso.append(n);
                        }
                        break;
                case 125: // Trumpler Catalogue (Tr)
                        for (const auto& n : dsoArray)
                        {
                                if (n->Tr_nb > 0)
                                        dso.append(n);
                        }
                        break;
                case 126: // Stock Catalogue (St)
                        for (const auto& n : dsoArray)
                        {
                                if (n->St_nb > 0)
                                        dso.append(n);
                        }
                        break;
                case 127: // Ruprecht Catalogue (Ru)
                        for (const auto& n : dsoArray)
                        {
                                if (n->Ru_nb > 0)
                                        dso.append(n);
                        }
                        break;
                case 128: // van den Bergh-Hagen Catalogue (VdB-Ha)
                        for (const auto& n : dsoArray)
                        {
                                if (n->VdBHa_nb > 0)
                                        dso.append(n);
                        }
                        break;
                case 150: // Dwarf galaxies [see NebulaList.hpp]
                {
                        NebulaP ds;
                        for (unsigned int i = 0; i < sizeof(DWARF_GALAXIES) / sizeof(DWARF_GALAXIES[0]); i++)
                        {
                                ds = searchPGC(DWARF_GALAXIES[i]);
                                if (!ds.isNull())
                                        dso.append(ds);
                        }
                        break;
                }
                case 151: // Herschel 400 Catalogue [see NebulaList.hpp]
                {
                        NebulaP ds;
                        for (unsigned int i = 0; i < sizeof(H400_LIST) / sizeof(H400_LIST[0]); i++)
                        {
                                ds = searchNGC(H400_LIST[i]);
                                if (!ds.isNull())
                                        dso.append(ds);
                        }
                        break;
                }
                case 152: // Jack Bennett's deep sky catalogue [see NebulaList.hpp]
                {
                        NebulaP ds;
                        for (unsigned int i = 0; i < sizeof(BENNETT_LIST) / sizeof(BENNETT_LIST[0]); i++)
                        {
                                ds = searchNGC(BENNETT_LIST[i]);
                                if (!ds.isNull())
                                        dso.append(ds);
                        }
                        ds = searchMel(105);
                        if (!ds.isNull())
                                dso.append(ds);
                        ds = searchIC(1459);
                        if (!ds.isNull())
                                dso.append(ds);
                        break;
                }
                case 153: // James Dunlop's deep sky catalogue [see NebulaList.hpp]
                {
                        NebulaP ds;
                        for (unsigned int i = 0; i < sizeof(DUNLOP_LIST) / sizeof(DUNLOP_LIST[0]); i++)
                        {
                                ds = searchNGC(DUNLOP_LIST[i]);
                                if (!ds.isNull())
                                        dso.append(ds);
                        }
                        break;
                }
                default:
                {
                        for (const auto& n : dsoArray)
                        {
                                if (n->nType==type)
                                        dso.append(n);
                        }
                        break;
                }
        }

        return dso;
}

Stellarium / stellarium / 4853788370

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