From 6886d70a5d46415173a508773964b82c78f1ded6 Mon Sep 17 00:00:00 2001
From: Spiros <samantas5855@gmail.com>
Date: Sun, 2 Jun 2024 12:55:23 +0300
Subject: [PATCH] Dynamically resize font

---
 custombutton.cpp | 25 ++++++++++++++++++++++++-
 1 file changed, 24 insertions(+), 1 deletion(-)

diff --git a/custombutton.cpp b/custombutton.cpp
index 920d3b2..56eeade 100644
--- a/custombutton.cpp
+++ b/custombutton.cpp
@@ -1,4 +1,5 @@
 #include "custombutton.h"
+#include <QFontMetrics>
 
 CustomButton::CustomButton(const QString &text1, const QString &text2, const QString &text3, const QColor &lineColor, QWidget *parent)
     : QPushButton(parent), text1(text1), text2(text2), text3(text3), lineColor(lineColor) {
@@ -18,5 +19,27 @@ void CustomButton::paintEvent(QPaintEvent *event) {
 
     QRect rect(20, 0, width() - 25, height());
     painter.setPen(textColor);
-    painter.drawText(rect, Qt::AlignVCenter | Qt::AlignLeft, text1 + "\n" + text2 + "\n" + text3);
+
+    QString lines[] = {text1, text2, text3};
+    int lineHeight = height() / 3;
+
+    for (int i = 0; i < 3; ++i) {
+        QFont font = painter.font();
+        int fontSize = 1;
+        painter.setFont(font);
+
+        QFontMetrics fm(font);
+        QRect textRect = fm.boundingRect(rect, Qt::AlignLeft, lines[i]);
+
+        while (textRect.width() > rect.width() || textRect.height() > lineHeight) {
+            fontSize--;
+            font.setPointSize(fontSize);
+            painter.setFont(font);
+            fm = QFontMetrics(font);
+            textRect = fm.boundingRect(rect, Qt::AlignLeft, lines[i]);
+        }
+
+        int yOffset = lineHeight * i + (lineHeight - textRect.height()) / 3;
+        painter.drawText(QRect(rect.left(), yOffset, rect.width(), textRect.height()), Qt::AlignLeft, lines[i]);
+    }
 }