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kstars

starobject.cpp

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/***************************************************************************
                          starobject.cpp  -  K Desktop Planetarium
                             -------------------
    begin                : Tue Sep 18 2001
    copyright            : (C) 2001 by Jason Harris
    email                : kstars@30doradus.org
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   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.                                   *
 *                                                                         *
 ***************************************************************************/

#include "starobject.h"
#include "kspopupmenu.h"
#include "ksnumbers.h"

#include <qpainter.h>
#include <qstring.h>
#include <kdebug.h>

StarObject::StarObject( StarObject &o )
    : SkyObject (o)
{
    SpType = o.SpType;
//SONAME: deprecated (?) JH
//  soName = o.soName;
    PM_RA = o.pmRA();
    PM_Dec = o.pmDec();
    Parallax = o.parallax();
    Multiplicity = o.isMultiple();
    Variability = o.isVariable();
}

StarObject::StarObject( dms r, dms d, float m, QString n, QString n2, QString sptype,
        double pmra, double pmdec, double par, bool mult, bool var )
    : SkyObject (SkyObject::STAR, r, d, m, n, n2, ""), SpType(sptype), PM_RA(pmra), PM_Dec(pmdec),
        Parallax(par), Multiplicity(mult), Variability(var) // SONAME deprecated //, soName( 0 )
{
    QString lname;
    if ( hasName() ) {
        lname = n;
        if ( hasName2() ) lname += " (" + gname() + ")";
    } else if ( hasName2() )
        lname = gname();

    //If genetive name exists, but no primary name, set primary name = genetive name.
    if ( hasName2() && !hasName() ) {
        setName( gname() );
    }

    setLongName(lname);
}

StarObject::StarObject( double r, double d, float m, QString n, QString n2, QString sptype,
        double pmra, double pmdec, double par, bool mult, bool var )
    : SkyObject (SkyObject::STAR, r, d, m, n, n2, ""), SpType(sptype), PM_RA(pmra), PM_Dec(pmdec),
        Parallax(par), Multiplicity(mult), Variability(var) // SONAME deprecated //, soName( 0 )
{
    QString lname;
    if ( hasName() ) {
        lname = n;
        if ( hasName2() )lname += n + " (" + gname() + ")";
    } else if ( hasName2() )
        lname = gname();

    setLongName(lname);
}

void StarObject::updateCoords( KSNumbers *num, bool , const dms*, const dms* ) {
    SkyPoint::updateCoords( num );
    
    //Correct for proper motion of stars.  Determine RA and Dec offsets.
    //Proper motion is given im milliarcsec per year by the pmRA() and pmDec() functions.
    //That is numerically identical to the number of arcsec per millenium, so multiply by 
    //KSNumbers::julianMillenia() to find the offsets in arcsec.
    setRA( ra()->Hours() + pmRA()*num->julianMillenia() / 15. / cos( dec()->radians() )/3600. );
    setDec( dec()->Degrees() + pmDec()*num->julianMillenia()/3600. );
}

QString StarObject::sptype( void ) const {
    return SpType;
}

QString StarObject::gname( bool useGreekChars ) const {
    return greekLetter( useGreekChars ) + " " + constell();
}

QString StarObject::greekLetter( bool gchar ) const {
    QString code = name2().left(3);
    QString letter = code;  //in case genitive name is *not* a Greek letter
    int alpha = 0x03B1;

    if ( code == "alp" ) gchar ? letter = QString( QChar(alpha + 0) ) : letter = i18n("alpha");
    if ( code == "bet" ) gchar ? letter = QString( QChar(alpha + 1) ) : letter = i18n("beta");
    if ( code == "gam" ) gchar ? letter = QString( QChar(alpha + 2) ) : letter = i18n("gamma");
    if ( code == "del" ) gchar ? letter = QString( QChar(alpha + 3) ) : letter = i18n("delta");
    if ( code == "eps" ) gchar ? letter = QString( QChar(alpha + 4) ) : letter = i18n("epsilon");
    if ( code == "zet" ) gchar ? letter = QString( QChar(alpha + 5) ) : letter = i18n("zeta");
    if ( code == "eta" ) gchar ? letter = QString( QChar(alpha + 6) ) : letter = i18n("eta");
    if ( code == "the" ) gchar ? letter = QString( QChar(alpha + 7) ) : letter = i18n("theta");
    if ( code == "iot" ) gchar ? letter = QString( QChar(alpha + 8) ) : letter = i18n("iota");
    if ( code == "kap" ) gchar ? letter = QString( QChar(alpha + 9) ) : letter = i18n("kappa");
    if ( code == "lam" ) gchar ? letter = QString( QChar(alpha +10) ) : letter = i18n("lambda");
    if ( code == "mu " ) gchar ? letter = QString( QChar(alpha +11) ) : letter = i18n("mu");
    if ( code == "nu " ) gchar ? letter = QString( QChar(alpha +12) ) : letter = i18n("nu");
    if ( code == "xi " ) gchar ? letter = QString( QChar(alpha +13) ) : letter = i18n("xi");
    if ( code == "omi" ) gchar ? letter = QString( QChar(alpha +14) ) : letter = i18n("omicron");
    if ( code == "pi " ) gchar ? letter = QString( QChar(alpha +15) ) : letter = i18n("pi");
    if ( code == "rho" ) gchar ? letter = QString( QChar(alpha +16) ) : letter = i18n("rho");
    //there are two unicode symbols for sigma;
    //skip the first one, the second is more widely used
    if ( code == "sig" ) gchar ? letter = QString( QChar(alpha +18) ) : letter = i18n("sigma");
    if ( code == "tau" ) gchar ? letter = QString( QChar(alpha +19) ) : letter = i18n("tau");
    if ( code == "ups" ) gchar ? letter = QString( QChar(alpha +20) ) : letter = i18n("upsilon");
    if ( code == "phi" ) gchar ? letter = QString( QChar(alpha +21) ) : letter = i18n("phi");
    if ( code == "chi" ) gchar ? letter = QString( QChar(alpha +22) ) : letter = i18n("chi");
    if ( code == "psi" ) gchar ? letter = QString( QChar(alpha +23) ) : letter = i18n("psi");
    if ( code == "ome" ) gchar ? letter = QString( QChar(alpha +24) ) : letter = i18n("omega");

    if ( name2().length() && name2().mid(3,1) != " " )
        letter += "[" + name2().mid(3,1) + "]";

    return letter;
}

QString StarObject::constell( void ) const {
    QString code = name2().mid(4,3);
    if ( code == "And" ) return QString("Andromedae");
    if ( code == "Ant" ) return QString("Antliae");
    if ( code == "Aps" ) return QString("Apodis");
    if ( code == "Aqr" ) return QString("Aquarii");
    if ( code == "Aql" ) return QString("Aquilae");
    if ( code == "Ara" ) return QString("Arae");
    if ( code == "Ari" ) return QString("Arietis");
    if ( code == "Aur" ) return QString("Aurigae");
    if ( code == "Boo" ) return QString("Bootis");
    if ( code == "Cae" ) return QString("Caeli");
    if ( code == "Cam" ) return QString("Camelopardalis");
    if ( code == "Cnc" ) return QString("Cancri");
    if ( code == "CVn" ) return QString("Canum Venaticorum");
    if ( code == "CMa" ) return QString("Canis Majoris");
    if ( code == "CMi" ) return QString("Canis Minoris");
    if ( code == "Cap" ) return QString("Capricorni");
    if ( code == "Car" ) return QString("Carinae");
    if ( code == "Cas" ) return QString("Cassiopeiae");
    if ( code == "Cen" ) return QString("Centauri");
    if ( code == "Cep" ) return QString("Cephei");
    if ( code == "Cet" ) return QString("Ceti");
    if ( code == "Cha" ) return QString("Chamaeleontis");
    if ( code == "Cir" ) return QString("Circini");
    if ( code == "Col" ) return QString("Columbae");
    if ( code == "Com" ) return QString("Comae Berenices");
    if ( code == "CrA" ) return QString("Coronae Austrinae");
    if ( code == "CrB" ) return QString("Coronae Borealis");
    if ( code == "Crv" ) return QString("Corvi");
    if ( code == "Crt" ) return QString("Crateris");
    if ( code == "Cru" ) return QString("Crucis");
    if ( code == "Cyg" ) return QString("Cygni");
    if ( code == "Del" ) return QString("Delphini");
    if ( code == "Dor" ) return QString("Doradus");
    if ( code == "Dra" ) return QString("Draconis");
    if ( code == "Equ" ) return QString("Equulei");
    if ( code == "Eri" ) return QString("Eridani");
    if ( code == "For" ) return QString("Fornacis");
    if ( code == "Gem" ) return QString("Geminorum");
    if ( code == "Gru" ) return QString("Gruis");
    if ( code == "Her" ) return QString("Herculis");
    if ( code == "Hor" ) return QString("Horologii");
    if ( code == "Hya" ) return QString("Hydrae");
    if ( code == "Hyi" ) return QString("Hydri");
    if ( code == "Ind" ) return QString("Indi");
    if ( code == "Lac" ) return QString("Lacertae");
    if ( code == "Leo" ) return QString("Leonis");
    if ( code == "LMi" ) return QString("Leonis Minoris");
    if ( code == "Lep" ) return QString("Leporis");
    if ( code == "Lib" ) return QString("Librae");
    if ( code == "Lup" ) return QString("Lupi");
    if ( code == "Lyn" ) return QString("Lyncis");
    if ( code == "Lyr" ) return QString("Lyrae");
    if ( code == "Men" ) return QString("Mensae");
    if ( code == "Mic" ) return QString("Microscopii");
    if ( code == "Mon" ) return QString("Monocerotis");
    if ( code == "Mus" ) return QString("Muscae");
    if ( code == "Nor" ) return QString("Normae");
    if ( code == "Oct" ) return QString("Octantis");
    if ( code == "Oph" ) return QString("Ophiuchi");
    if ( code == "Ori" ) return QString("Orionis");
    if ( code == "Pav" ) return QString("Pavonis");
    if ( code == "Peg" ) return QString("Pegasi");
    if ( code == "Per" ) return QString("Persei");
    if ( code == "Phe" ) return QString("Phoenicis");
    if ( code == "Pic" ) return QString("Pictoris");
    if ( code == "Psc" ) return QString("Piscium");
    if ( code == "PsA" ) return QString("Piscis Austrini");
    if ( code == "Pup" ) return QString("Puppis");
    if ( code == "Pyx" ) return QString("Pyxidis");
    if ( code == "Ret" ) return QString("Reticuli");
    if ( code == "Sge" ) return QString("Sagittae");
    if ( code == "Sgr" ) return QString("Sagittarii");
    if ( code == "Sco" ) return QString("Scorpii");
    if ( code == "Scl" ) return QString("Sculptoris");
    if ( code == "Sct" ) return QString("Scuti");
    if ( code == "Ser" ) return QString("Serpentis");
    if ( code == "Sex" ) return QString("Sextantis");
    if ( code == "Tau" ) return QString("Tauri");
    if ( code == "Tel" ) return QString("Telescopii");
    if ( code == "Tri" ) return QString("Trianguli");
    if ( code == "TrA" ) return QString("Trianguli Australis");
    if ( code == "Tuc" ) return QString("Tucanae");
    if ( code == "UMa" ) return QString("Ursae Majoris");
    if ( code == "UMi" ) return QString("Ursae Minoris");
    if ( code == "Vel" ) return QString("Velorum");
    if ( code == "Vir" ) return QString("Virginis");
    if ( code == "Vol" ) return QString("Volantis");
    if ( code == "Vul" ) return QString("Vulpeculae");

    return QString("");
}

void StarObject::draw( QPainter &psky, QPixmap *sky, QPixmap *starpix, int x, int y, bool /*showMultiple*/, double /*scale*/ ) {
    //Indicate multiple stars with a short horizontal line
    //(only draw this for stars larger than 3 pixels)
//Commenting out for now...
//  if ( showMultiple &&  starpix->width() > 3 ) {
//      int lsize = int(3*starpix->width()/4);  //size of half line segment
//      psky.drawLine( x - lsize, y, x + lsize, y );
//  }

    //Only bitBlt() if we are drawing to the sky pixmap
    if ( psky.device() == sky )
        bitBlt ((QPaintDevice *) sky, x - starpix->width()/2, y - starpix->height()/2, starpix );
    else
        psky.drawPixmap( x - starpix->width()/2, y - starpix->height()/2, *starpix );

}

void StarObject::drawLabel( QPainter &psky, int x, int y, double zoom, bool drawName, bool drawMag, double scale ) {
    QString sName( i18n("star") + " " );
    if ( drawName ) {
        if ( name() != "star" ) sName = translatedName() + " ";
        else if ( longname() != "star" ) sName = translatedLongName() + " ";
    }
    if ( drawMag ) {
        if ( drawName )
            sName += QString().sprintf("%.1f", mag() );
        else 
            sName = QString().sprintf("%.1f", mag() );
    }

    int offset = int( scale * (6 + int(0.5*(5.0-mag())) + int(0.01*( zoom/500. )) ));

    psky.drawText( x+offset, y+offset, sName );
}

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