enhanced the day's details by adding key panchanga elements and refactored the code for improved efficiency.

CMakeLists.txt

@@ -55,6 +55,10 @@ set(NEPDATE_WIDGET_SOURCES
     main.cpp
     mainwindow.cpp
     calendarwindow.cpp
+    calendarlogic.cpp
+    calendartable.cpp
+    converter.cpp
+    panchanga.cpp
 )
 
 set(NEPDATE_WIDGET_HEADERS
@@ -63,6 +67,9 @@ set(NEPDATE_WIDGET_HEADERS
     DayTithiWidget.h
     panchanga.h
     calendarwindow.h
+    calendarlogic.h
+    calendartable.h
+    converter.h
 )
 
 set(NEPDATE_WIDGET_FORMS
@@ -86,14 +93,21 @@ set(NEPDATE_CALENDAR_SOURCES
     main_calendar.cpp
     calendarwindow.cpp
     mainwindow.cpp
+    calendarlogic.cpp
+    calendartable.cpp
+    converter.cpp
+    panchanga.cpp
 )
 
 set(NEPDATE_CALENDAR_HEADERS
     calendarwindow.h
     DayTithiWidget.h
     bikram.h
-    panchanga.h
     mainwindow.h
+    panchanga.h
+    calendarlogic.h
+    calendartable.h
+    converter.h
 )
 
 set(NEPDATE_CALENDAR_FORMS

DayTithiWidget.h

@@ -4,96 +4,233 @@
 #include <QWidget>
 #include <QLabel>
 #include <QVBoxLayout>
+#include <QHBoxLayout>
 #include <QIcon>
 #include <QPixmap>
 #include <QPainter>
 #include <QResizeEvent>
 #include <QFont>
 #include <QFontDatabase>
-#include <QtGlobal>
+#include <QMouseEvent>
+#include <QMessageBox>
+#include <QStyleOption>
+#include "panchanga.h"
+#include "bikram.h"
+#include <QDate>
+#include "calendarlogic.h"
 
 class DayTithiWidget : public QWidget {
     Q_OBJECT
 
 public:
-    explicit DayTithiWidget(const QString &day, const QString &tithi, const QString &englishDay, QWidget *parent = nullptr)
+    explicit DayTithiWidget(const QString &day = "", const QString &tithi = "", const QString &englishDay = "", QWidget *parent = nullptr)
         : QWidget(parent), dayLabelText(day), tithiLabelText(tithi), englishDayLabelText(englishDay) {
 
-        // Day number (centered large text)
-        dayLabel = new QLabel(day, this);
-        dayLabel->setObjectName("dayLabel");
-        dayLabel->setAlignment(Qt::AlignCenter);
-        dayLabel->setStyleSheet("color: black; background-color: transparent;");
+        setAttribute(Qt::WA_Hover);
+        setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
+        setMinimumSize(60, 60);
+
+        QVBoxLayout *mainLayout = new QVBoxLayout(this);
+        mainLayout->setContentsMargins(4, 4, 4, 4);
+        mainLayout->setSpacing(2);
+
+        QHBoxLayout *topLayout = new QHBoxLayout();
+        topLayout->setContentsMargins(0, 0, 0, 0);
+        topLayout->setSpacing(0);
 
-        // English day number (top-right, small, gray)
         englishDayLabel = new QLabel(englishDay, this);
-        englishDayLabel->setObjectName("englishDayLabel");
-        englishDayLabel->setAlignment(Qt::AlignRight | Qt::AlignTop);
         englishDayLabel->setStyleSheet("color:rgb(74, 32, 240); background-color: transparent;");
-        englishDayLabel->adjustSize();
+        englishDayLabel->setAlignment(Qt::AlignRight);
+        topLayout->addStretch();
+        topLayout->addWidget(englishDayLabel);
+
+        dayLabel = new QLabel(day, this);
+        dayLabel->setAlignment(Qt::AlignCenter);
+        dayLabel->setStyleSheet("color: black; background-color: transparent;");
+        dayLabel->setMinimumSize(1, 1);
 
-        // Tithi label (bottom left)
         tithiLabel = new QLabel(tithi, this);
-        tithiLabel->setObjectName("tithiLabel");
         tithiLabel->setStyleSheet("color: #2563eb; background-color: transparent;");
-        tithiLabel->setVisible(true);
-        tithiLabel->adjustSize();
+        tithiLabel->setAlignment(Qt::AlignLeft);
+
+        mainLayout->addLayout(topLayout);
+        mainLayout->addStretch();
+        mainLayout->addWidget(dayLabel);
+        mainLayout->addStretch();
+        mainLayout->addWidget(tithiLabel);
 
-        // Icon label (bottom right)
         iconLabel = new QLabel(this);
-        iconLabel->setAttribute(Qt::WA_TransparentForMouseEvents);
         iconLabel->setStyleSheet("background-color: transparent;");
-        iconLabel->adjustSize();
+        iconLabel->setAttribute(Qt::WA_TransparentForMouseEvents);
+
+        applyResponsiveLayout();
+    }
+
+    void updateLabels(const QString &day, const QString &tithi, const QString &englishDay) {
+        dayLabel->setText(day);
+        tithiLabel->setText(tithi);
+        englishDayLabel->setText(englishDay);
+        applyResponsiveLayout();
     }
 
     void setTodayStyle() {
         QFont font = dayLabel->font();
         font.setBold(true);
         dayLabel->setFont(font);
-        dayLabel->adjustSize();
-        int contentWidth = dayLabel->width();
-        int contentHeight = dayLabel->height();
-        int maxDimension = qMax(contentWidth, contentHeight);
-        int dynamicPadding = maxDimension / 3;
-        int finalPadding = qBound(10, dynamicPadding, 30);
-        int circleDiameter = maxDimension + (finalPadding * 2);
-        if (circleDiameter < 40) circleDiameter = 40;
-        dayLabel->setFixedSize(circleDiameter, circleDiameter);
+
         QString styleSheet = QString(
             "QLabel {"
             "   background-color:rgb(91, 240, 156);"
             "   color: white;"
-            "   border-radius: %1px;" // Half of the diameter for a circle
-            "   qproperty-alignment: AlignCenter;" // Center the text within the circular area
+            "   border-radius: 50px;"
+            "   qproperty-alignment: AlignCenter;"
             "}"
-        ).arg(circleDiameter / 2);
-
+        );
         dayLabel->setStyleSheet(styleSheet);
+        applyResponsiveLayout();
     }
 
-
     void setSaturdayStyle() {
         dayLabel->setStyleSheet("color: red;");
+        applyResponsiveLayout();
+    }
+
+    void setNormalStyle() {
+        dayLabel->setStyleSheet("color: black; background-color: transparent;");
+        QFont font = dayLabel->font();
+        font.setBold(false);
+        dayLabel->setFont(font);
+        applyResponsiveLayout();
+    }
+
+    void setIcon(const QIcon &icon, qreal opacity = 1.0) {
+        storedIcon = icon;
+        storedIconOpacity = opacity;
+        adjustIconSize();
+    }
+
+    void setSelected(bool selected) {
+        isSelected = selected;
+        update();
+    }
+
+signals:
+    void dayCellClicked(DayTithiWidget *cell);  // use to manage global selection
+
+protected:
+    void resizeEvent(QResizeEvent *event) override {
+        QWidget::resizeEvent(event);
+        applyResponsiveLayout();
+    }
+
+    void mousePressEvent(QMouseEvent *event) override {
+        if (event->button() == Qt::LeftButton) {
+            isSelected = true;
+            update();
+            emit dayCellClicked(this);
+
+            int day = property("gDay").toInt();
+            int month = property("month").toInt();
+            int year = property("year").toInt();
+
+            QDate gdate(year, month, day);
+            Bikram bs;
+            bs.fromGregorian(year, month, day);
+
+            std::tm date = {};
+            date.tm_year = year - 1900;
+            date.tm_mon = month - 1;
+            date.tm_mday = day;
+
+            TithiResult tithi = calculateTithi(date);
+            YogaResult yoga = calculateYoga(date);
+            KaranResult karan = calculateKaran(date);
+            NakshatraResult nakshatra = calculateNakshatra(date);
+            RashiResult rashi = calculateRashi(date);
+            QString sunrise = QString::fromStdString(calculateSunriseOrSunset(date, true));
+            QString sunset = QString::fromStdString(calculateSunriseOrSunset(date, false));
+
+            QString details = QString(
+                "Gregorian: %1\n"
+                "Bikram: %2-%3-%4\n"
+                "Tithi: %5\n"
+                "Paksha: %6\n"
+                "Yoga: %7\n"
+                "Karana: %8\n"
+                "Nakshatra: %9\n"
+                "Rashi: %10\n"
+                "Sunrise: %11\n"
+                "Sunset: %12")
+                .arg(gdate.toString("yyyy-MM-dd"))
+                .arg(convertToNepaliNumerals(bs.getYear()))
+                .arg(convertToNepaliNumerals(bs.getMonth()))
+                .arg(convertToNepaliNumerals(bs.getDay()))
+                .arg(QString::fromStdString(tithi.tithiName))
+                .arg(QString::fromStdString(tithi.paksha))
+                .arg(QString::fromStdString(yoga.yogaName))
+                .arg(QString::fromStdString(karan.karanName))
+                .arg(QString::fromStdString(nakshatra.nakshatraName))
+                .arg(QString::fromStdString(rashi.rashiName))
+                .arg(sunrise)
+                .arg(sunset);
+
+            QMessageBox::information(this, tr("Day Details"), details);
+        }
+        QWidget::mousePressEvent(event);
+    }
+
+    bool event(QEvent *event) override {
+        if (event->type() == QEvent::Enter) {
+            isHovered = true;
+            update();
+        } else if (event->type() == QEvent::Leave) {
+            isHovered = false;
+            update();
+        }
+        return QWidget::event(event);
+    }
+
+    void paintEvent(QPaintEvent *event) override {
+        Q_UNUSED(event);
+        QPainter painter(this);
+        QColor bgColor = Qt::white;
+
+        if (isSelected) {
+            bgColor = QColor("#bfdbfe");  // light blue
+        } else if (isHovered) {
+            bgColor = QColor("#d1fae5");  // light green
+        }
+
+        painter.fillRect(rect(), bgColor);
+
+        QStyleOption opt;
+        opt.initFrom(this);
+        style()->drawPrimitive(QStyle::PE_Widget, &opt, &painter, this);
     }
 
 private:
     QLabel *dayLabel;
     QLabel *tithiLabel;
     QLabel *iconLabel;
     QLabel *englishDayLabel;
+
     QString dayLabelText;
     QString tithiLabelText;
     QString englishDayLabelText;
+
     QSize iconSize = QSize(24, 24);
     QIcon storedIcon;
     qreal storedIconOpacity = 1.0;
+
+    bool isHovered = false;
+    bool isSelected = false;
+
     void adjustIconSize() {
         int minSize = qMin(width(), height()) / 4;
         iconSize = QSize(minSize + 18, minSize + 18);
         iconLabel->setFixedSize(iconSize);
         iconLabel->setScaledContents(true);
         iconLabel->move(width() - iconSize.width() - 4, height() - iconSize.height() - 4);
-        // Always re-render from original icon for sharpness
         if (!storedIcon.isNull()) {
 #if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
             QPixmap pixmap = storedIcon.pixmap(iconSize);
@@ -109,45 +246,43 @@ class DayTithiWidget : public QWidget {
             iconLabel->setPixmap(transparentPixmap);
         }
     }
-public:
-    void setIcon(const QIcon &icon, qreal opacity = 1.0) {
-        storedIcon = icon;
-        storedIconOpacity = opacity;
-        adjustIconSize();
-    }
 
-protected:
-    void resizeEvent(QResizeEvent *event) override {
-        QWidget::resizeEvent(event);
+    void applyResponsiveLayout() {
         int w = width();
         int h = height();
         int minDim = qMin(w, h);
+
         int dayFontSize = std::max(12, static_cast<int>(minDim * 0.14));
         int tithiFontSize = std::max(8, static_cast<int>(minDim * 0.05));
         int englishDayFontSize = std::max(8, static_cast<int>(minDim * 0.05));
-        int fontId = QFontDatabase::addApplicationFont(":/resources/NotoSansDevanagari-VariableFont_wdth,wght.ttf");
-        QString fontFamily = QFontDatabase::applicationFontFamilies(fontId).at(0);
-        QFont dayFont = dayLabel->font();
-        dayFont.setPointSize(dayFontSize);
+
+        static QString fontFamily;
+        if (fontFamily.isEmpty()) {
+            int fontId = QFontDatabase::addApplicationFont(":/resources/NotoSansDevanagari-VariableFont_wdth,wght.ttf");
+            fontFamily = QFontDatabase::applicationFontFamilies(fontId).value(0, "Noto Sans");
+        }
+
+        QFont dayFont;
         dayFont.setFamily(fontFamily);
-        dayFont.setBold(false);
+        dayFont.setPointSize(dayFontSize);
+        dayFont.setBold(dayLabel->font().bold());
         dayLabel->setFont(dayFont);
-        QFont tithiFont = tithiLabel->font();
+
+        QFont tithiFont;
         tithiFont.setPointSize(tithiFontSize);
         tithiFont.setItalic(true);
         tithiLabel->setFont(tithiFont);
-        QFont englishDayFont = englishDayLabel->font();
-        englishDayFont.setPointSize(englishDayFontSize);
-        englishDayLabel->setFont(englishDayFont);
-        // Position labels without adjustSize/repaint
-        int dayX = 20;
-        int dayY = (h / 3) - (dayLabel->height() / 2);
-        dayLabel->move(dayX, dayY);
-        englishDayLabel->move(width() - englishDayLabel->width() - 6, 6);
-        tithiLabel->move(6, h - tithiLabel->height() - 6);
+
+        QFont englishFont;
+        englishFont.setPointSize(englishDayFontSize);
+        englishDayLabel->setFont(englishFont);
+
+        dayLabel->adjustSize();
+        tithiLabel->adjustSize();
+        englishDayLabel->adjustSize();
+
         adjustIconSize();
     }
-
 };
 
 #endif // DAYTITHIWIDGET_H