Kstars

catalogobject.cpp
1 /*
2  SPDX-FileCopyrightText: 2001 Jason Harris <[email protected]>
3  SPDX-FileCopyrightText: 2021 Valentin Boettcher <hiro at protagon.space; @hiro98:tchncs.de>
4 
5  SPDX-License-Identifier: GPL-2.0-or-later
6 */
7 
8 #include "catalogobject.h"
9 #include "ksutils.h"
10 #include "Options.h"
11 #include "skymap.h"
12 #include "texturemanager.h"
13 #include "kstarsdata.h"
14 #include "kspopupmenu.h"
15 #include "catalogsdb.h"
16 #include <QCryptographicHash>
17 #include <typeinfo>
18 
20 {
21  Q_ASSERT(typeid(this) == typeid(static_cast<const CatalogObject *>(
22  this))); // Ensure we are not slicing a derived class
23  return new CatalogObject(*this); // NOLINT, (b.c. returning raw memory is bad!)
24 }
25 
26 float CatalogObject::e() const
27 {
28  if (m_major_axis == 0.0 || m_minor_axis == 0.0)
29  return 1.0; //assume circular
30  return m_minor_axis / m_major_axis;
31 }
32 
34 {
35  //Calculate object size in pixels
36  double major_axis = m_major_axis;
37  double minor_axis = m_minor_axis;
38 
39  if (major_axis == 0.0 && type() == 1) //catalog stars
40  {
41  major_axis = 1.0;
42  minor_axis = 1.0;
43  }
44 
45  double size =
46  ((major_axis + minor_axis) / 2.0) * dms::PI * Options::zoomFactor() / 10800.0;
47 
48  return 0.5 * size + 4.;
49 }
50 
52 {
53  QString oName;
54  if (Options::showDeepSkyNames())
55  {
56  if (Options::deepSkyLongLabels() && translatedLongName() != translatedName())
57  oName = translatedLongName() + " (" + translatedName() + ')';
58  else
59  oName = translatedName();
60  }
61 
62  if (Options::showDeepSkyMagnitudes() && !std::isnan(mag()))
63  {
64  if (Options::showDeepSkyNames())
65  oName += ' ';
66  oName += '[' + QLocale().toString(mag(), 'f', 1) + "m]";
67  }
68 
69  return oName;
70 }
71 
73 {
74  return m_object_id.toLongLong(); // = qint64
75 }
76 
78 {
79  KStarsData *data{ KStarsData::Instance() };
80 
81  if (m_updateID != data->updateID())
82  {
83  m_updateID = data->updateID();
84 
85  if (m_updateNumID != data->updateNumID())
86  {
87  updateCoords(data->updateNum());
88  m_updateNumID = data->updateNumID();
89  }
90 
91  EquatorialToHorizontal(data->lst(), data->geo()->lat());
92  }
93 }
94 
96 {
97 #ifndef KSTARS_LITE
98  pmenu->createCatalogObjectMenu(this);
99 #else
100  Q_UNUSED(pmenu);
101 #endif
102 }
103 
105 {
106  if (m_database_path.get().length() == 0)
107  return {};
108 
109  CatalogsDB::DBManager db{ m_database_path };
110 
111  const auto &success = db.get_catalog(m_catalog_id);
112  return (success.first ? success.second : CatalogsDB::Catalog{});
113 }
114 
116 
117 {
118  return CatalogObject::getId(SkyObject::TYPE(type()), ra0().Degrees(),
119  dec0().Degrees(), name(), catalogIdentifier());
120 }
121 
122 const CatalogObject::oid CatalogObject::getId(const SkyObject::TYPE type, const double ra,
123  const double dec, const QString &name,
124  const QString &catalog_identifier)
125 {
126  QString data;
127  data += QString::number(type);
128  data += QString::number(static_cast<int>(std::floor(ra)));
129  data += QString::number(static_cast<int>(std::floor(dec)));
130  data += name;
131  data += catalog_identifier;
132 
134  hash.addData(data.toUtf8());
135 
136  return hash.result();
137 }
138 
140 {
141  if (!m_image_loaded)
142  {
143  QString tname = name().toLower().remove(' ');
144  m_image = TextureManager::getImage(tname);
145  m_image_loaded = true;
146  }
147 }
static constexpr double PI
PI is a const static member; it's public so that it can be used anywhere, as long as dms....
Definition: dms.h:380
QString number(int n, int base)
QString translatedLongName() const
Definition: skyobject.h:169
float e() const
CatalogObject(oid id={}, const SkyObject::TYPE t=SkyObject::STAR, const dms &r=dms(0.0), const dms &d=dms(0.0), const float m=NaN::f, const QString &n=QString(), const QString &lname=QString(), const QString &catalog_identifier=QString(), const int catalog_id=-1, const float a=0.0, const float b=0.0, const double pa=0.0, const float flux=0, const QString &database_path="")
Definition: catalogobject.h:64
virtual QString name(void) const
Definition: skyobject.h:145
QString translatedName() const
Definition: skyobject.h:148
float mag() const
Definition: skyobject.h:206
Manages the catalog database and provides an interface to provide an interface to query and modify th...
Definition: catalogsdb.h:181
CatalogObject * clone() const override
Clones the object and returns a pointer to it.
void EquatorialToHorizontal(const CachingDms *LST, const CachingDms *lat)
Determine the (Altitude, Azimuth) coordinates of the SkyPoint from its (RA, Dec) coordinates,...
Definition: skypoint.cpp:77
void initPopupMenu(KSPopupMenu *pmenu) override
Initialize the popup menu for a CatalogObject.
QString labelString() const override
qint64 UID
Type for Unique object IDenticator.
Definition: skyobject.h:49
int type(void) const
Definition: skyobject.h:188
SkyObject::UID getUID() const override
Generates a KStars internal UID from the object id.
qlonglong toLongLong(bool *ok, int base) const const
virtual void updateCoords(const KSNumbers *num, bool includePlanets=true, const CachingDms *lat=nullptr, const CachingDms *LST=nullptr, bool forceRecompute=false)
Determine the current coordinates (RA, Dec) from the catalog coordinates (RA0, Dec0),...
Definition: skypoint.cpp:582
void createCatalogObjectMenu(CatalogObject *obj)
Create a popup menu for a deep-sky catalog object.
const CachingDms & dec() const
Definition: skypoint.h:269
void load_image()
Load the image for this object.
void JITupdate()
Update the cooridnates and the horizontal coordinates if updateID or updateNumID have changed (global...
QByteArray toUtf8() const const
QString toString(qlonglong i) const const
const oid getId() const
QString & remove(int position, int n)
QString toLower() const const
const CachingDms & ra() const
Definition: skypoint.h:263
const CachingDms & dec0() const
Definition: skypoint.h:257
static const QImage & getImage(const QString &name)
Return texture image.
const CachingDms & ra0() const
Definition: skypoint.h:251
double labelOffset() const override
const QString & catalogIdentifier() const
A simple container object to hold the minimum information for a Deeb Sky Object to be drawn on the sk...
Definition: catalogobject.h:40
A simple struct to hold information about catalogs.
Definition: catalogsdb.h:35
const CatalogsDB::Catalog getCatalog() const
Get information about the catalog that this objects stems from.
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