File indexing completed on 2024-04-21 03:44:49

 /*
     SPDX-FileCopyrightText: 2007 Jason Harris <kstars@30doradus.org>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #include "eqplotwidget.h"
 
 #include "kstarsdatetime.h"
 #include "modcalcvizequinox.h"
 
 #include <KLocalizedString>
 
 #include <QPainter>
 
 eqPlotWidget::eqPlotWidget(QWidget *parent) : KPlotWidget(parent)
 {
 }
 
 //Draw rotated labels and month names on top axis
 void eqPlotWidget::paintEvent(QPaintEvent *e)
 {
     KPlotWidget::paintEvent(e);
 
     QPainter p;
     p.begin(this);
 
     modCalcEquinox *mc = (modCalcEquinox *)(parent()->parent()->parent()->parent());
     KStarsDateTime dt(QDate(mc->Year->value(), 1, 1), QTime(0, 0, 0));
     long double jd0 = dt.djd(); //save JD on Jan 1st
 
     QPointF pSpring = mapToWidget(QPointF(mc->dSpring.djd() - jd0 - 4, -28.0));
     QPointF pSummer = mapToWidget(QPointF(mc->dSummer.djd() - jd0 - 4, -28.0));
     QPointF pAutumn = mapToWidget(QPointF(mc->dAutumn.djd() - jd0 - 4, -28.0));
     QPointF pWinter = mapToWidget(QPointF(mc->dWinter.djd() - jd0 - 4, -28.0));
 
     p.setPen(Qt::yellow);
     QFont f = p.font();
     f.setPointSize(f.pointSize() - 2);
     p.setFont(f);
 
     p.save();
     p.translate(leftPadding() + pSpring.x(), topPadding() + pSpring.y());
     p.rotate(-90);
     p.drawText(0, 0, i18n("Vernal equinox:"));
     p.drawText(0, 14, QLocale().toString(mc->dSpring, QLocale::LongFormat));
     p.restore();
 
     p.save();
     p.translate(leftPadding() + pSummer.x(), topPadding() + pSummer.y());
     p.rotate(-90);
     p.drawText(0, 0, i18n("Summer solstice:"));
     p.drawText(0, 14, QLocale().toString(mc->dSummer, QLocale::LongFormat));
     p.restore();
 
     p.save();
     p.translate(leftPadding() + pAutumn.x(), topPadding() + pAutumn.y());
     p.rotate(-90);
     p.drawText(0, 0, i18n("Autumnal equinox:"));
     p.drawText(0, 14, QLocale().toString(mc->dAutumn, QLocale::LongFormat));
     p.restore();
 
     p.save();
     p.translate(leftPadding() + pWinter.x(), topPadding() + pWinter.y());
     p.rotate(-90);
     p.drawText(0, 0, i18n("Winter solstice:"));
     p.drawText(0, 14, QLocale().toString(mc->dWinter, QLocale::LongFormat));
     p.restore();
 
     //Draw month labels along top axis
     p.setPen(Qt::white);
     p.save();
     p.translate(leftPadding(), topPadding());
     double y = mc->Plot->dataRect().bottom() + 1.5;
     for (int i = 0; i < 12; i++)
     {
         QPoint c;
         if (i < 11)
         {
             c = mc->Plot->mapToWidget(QPointF(0.5 * (mc->dmonth(i) + mc->dmonth(i + 1)), y)).toPoint();
         }
         else
         {
             c = mc->Plot->mapToWidget(QPointF(0.5 * (mc->dmonth(i) + mc->Plot->dataRect().right()), y)).toPoint();
         }
         QRect r(-16, -8, 32, 16);
         r.moveCenter(c);
         QLocale locale;
         p.drawText(r, Qt::AlignCenter, locale.monthName(i + 1, QLocale::ShortFormat));
     }
     p.restore();
     p.end();
 }