Warning, file /education/kstars/kstars/dialogs/focusdialog.cpp was not indexed or was modified since last indexation (in which case cross-reference links may be missing, inaccurate or erroneous).

 /*
     SPDX-FileCopyrightText: 2002 Jason Harris <kstars@30doradus.org>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #include "focusdialog.h"
 
 #include "dms.h"
 #include "kstars.h"
 #include "kstarsdata.h"
 #include "ksnotification.h"
 #include "skymap.h"
 #include "skyobjects/skypoint.h"
 
 #include <KLocalizedString>
 #include <QDoubleValidator>
 #include <KMessageBox>
 #include <QPushButton>
 
 #include <QVBoxLayout>
 
 FocusDialogUI::FocusDialogUI(QWidget *parent) : QFrame(parent)
 {
     setupUi(this);
 }
 
 FocusDialog::FocusDialog() : QDialog(KStars::Instance())
 {
 #ifdef Q_OS_OSX
     setWindowFlags(Qt::Tool | Qt::WindowStaysOnTopHint);
 #endif
     //initialize point to the current focus position
     Point = SkyMap::Instance()->focus();
 
     constexpr const char* J2000EpochString = "2000.0";
     fd = new FocusDialogUI(this);
 
     QVBoxLayout *mainLayout = new QVBoxLayout;
     mainLayout->addWidget(fd);
     setLayout(mainLayout);
 
     setWindowTitle(i18nc("@title:window", "Set Coordinates Manually"));
 
     QDialogButtonBox *buttonBox = new QDialogButtonBox(QDialogButtonBox::Ok | QDialogButtonBox::Cancel);
     mainLayout->addWidget(buttonBox);
     connect(buttonBox, SIGNAL(accepted()), this, SLOT(validatePoint()));
     connect(buttonBox, SIGNAL(rejected()), this, SLOT(reject()));
 
     okB = buttonBox->button(QDialogButtonBox::Ok);
     okB->setEnabled(false);
 
     fd->epochBox->setText(J2000EpochString);
     fd->epochBox->setValidator(new QDoubleValidator(fd->epochBox));
     fd->raBox->setMinimumWidth(fd->raBox->fontMetrics().boundingRect("00h 00m 00s").width());
     fd->azBox->setMinimumWidth(fd->raBox->fontMetrics().boundingRect("00h 00m 00s").width());
 
     fd->raBox->setUnits(dmsBox::HOURS); //RA box should be HMS-style
     fd->raBox->setFocus();        //set input focus
 
     const SkyPoint *center {nullptr};
     if (SkyMap::Instance()->focusObject())
         center = dynamic_cast<const SkyPoint*>(SkyMap::Instance()->focusObject());
     else
         center = const_cast<const SkyPoint*>(SkyMap::Instance()->focusPoint());
 
     if (center)
     {
         // Make a copy so as to not affect the existing center point / object
         SkyPoint centerCopy {*center};
         //center->deprecess(KStarsData::Instance()->updateNum());
         centerCopy.catalogueCoord(KStarsData::Instance()->updateNum()->julianDay());
         fd->raBox->show(centerCopy.ra());
         fd->decBox->show(centerCopy.dec());
 
         fd->azBox->show(centerCopy.az());
         fd->altBox->show(centerCopy.alt());
 
         checkLineEdits();
     }
 
     connect(fd->raBox, SIGNAL(textChanged(QString)), this, SLOT(checkLineEdits()));
     connect(fd->decBox, SIGNAL(textChanged(QString)), this, SLOT(checkLineEdits()));
     connect(fd->azBox, SIGNAL(textChanged(QString)), this, SLOT(checkLineEdits()));
     connect(fd->altBox, SIGNAL(textChanged(QString)), this, SLOT(checkLineEdits()));
 
     connect(fd->J2000B, &QPushButton::clicked, this, [&]()
     {
         fd->epochBox->setText(J2000EpochString);
     });
     connect(fd->JNowB, &QPushButton::clicked, this, [&]()
     {
         fd->epochBox->setText(QString::number(KStarsData::Instance()->lt().epoch(), 'f', 3));
     });
 
 }
 
 void FocusDialog::checkLineEdits()
 {
     bool raOk(false), decOk(false), azOk(false), altOk(false);
 
     fd->raBox->createDms(&raOk);
     fd->decBox->createDms(&decOk);
     fd->azBox->createDms(&azOk);
     fd->altBox->createDms(&altOk);
 
     if ((raOk && decOk) || (azOk && altOk))
         okB->setEnabled(true);
     else
         okB->setEnabled(false);
 }
 
 void FocusDialog::validatePoint()
 {
     bool raOk(false), decOk(false), azOk(false), altOk(false);
 
     //false means expressed in hours
     dms ra(fd->raBox->createDms(&raOk));
     dms dec(fd->decBox->createDms(&decOk));
 
     QString message;
 
     if (raOk && decOk)
     {
         //make sure values are in valid range
         if (ra.Hours() < 0.0 || ra.Hours() > 24.0)
             message = i18n("The Right Ascension value must be between 0.0 and 24.0.");
         if (dec.Degrees() < -90.0 || dec.Degrees() > 90.0)
             message += '\n' + i18n("The Declination value must be between -90.0 and 90.0.");
         if (!message.isEmpty())
         {
             KSNotification::sorry(message, i18n("Invalid Coordinate Data"));
             return;
         }
 
         bool ok { false };
         double epoch0   = KStarsDateTime::stringToEpoch(fd->epochBox->text(), ok);
         if (!ok)
         {
             KSNotification::sorry(message, i18n("Invalid Epoch format"));
             return;
         }
         long double jd0 = KStarsDateTime::epochToJd(epoch0);
 
         // Set RA and Dec to whatever epoch we have been given (may be J2000, JNow or something completely different)
         Point->setRA(ra);
         Point->setDec(dec);
 
         if (jd0 != J2000)
         {
             // Compute and set the J2000 coordinates of Point
             Point->catalogueCoord(jd0);
         }
         else
         {
             Point->setRA0(ra);
             Point->setDec0(dec);
         }
 
         // N.B. At this point (ra, dec) and (ra0, dec0) are both
         // J2000.0 values Therefore, we precess again to get the
         // values for the present draw epoch into (ra, dec)
         Point->apparentCoord(static_cast<long double>(J2000), KStarsData::Instance()->updateNum()->julianDay());
 
         Point->EquatorialToHorizontal(KStarsData::Instance()->lst(), KStarsData::Instance()->geo()->lat());
         // At this point, both (RA, Dec) and (Alt, Az) should correspond to current time
         // (RA0, Dec0) will be J2000.0 -- asimha
 
         QDialog::accept();
     }
     else
     {
         dms az(fd->azBox->createDms(&azOk));
         dms alt(fd->altBox->createDms(&altOk));
 
         if (azOk && altOk)
         {
             //make sure values are in valid range
             if (az.Degrees() < 0.0 || az.Degrees() > 360.0)
                 message = i18n("The Azimuth value must be between 0.0 and 360.0.");
             if (alt.Degrees() < -90.0 || alt.Degrees() > 90.0)
                 message += '\n' + i18n("The Altitude value must be between -90.0 and 90.0.");
             if (!message.isEmpty())
             {
                 KSNotification::sorry(message, i18n("Invalid Coordinate Data"));
                 return;
             }
 
             Point->setAz(az);
             Point->setAltRefracted(alt);
             Point->HorizontalToEquatorial(KStarsData::Instance()->lst(), KStarsData::Instance()->geo()->lat());
 
             UsedAltAz = true;
 
             QDialog::accept();
         }
         else
         {
             QDialog::reject();
         }
     }
 }
 
 QSize FocusDialog::sizeHint() const
 {
     return QSize(350, 210);
 }
 
 void FocusDialog::activateAzAltPage() const
 {
     fd->fdTab->setCurrentWidget(fd->aaTab);
     fd->azBox->setFocus();
 }