Use flexible font size for QRCode image address

1 files changed, 12 insertions, 0 deletions

diff --git a/src/qt/guiutil.cpp b/src/qt/guiutil.cpp
index 670d6108db..558d4f108c 100644
--- a/src/qt/guiutil.cpp
+++ b/src/qt/guiutil.cpp
@@ -995,6 +995,18 @@ QString formatBytes(uint64_t bytes)
     return QString(QObject::tr("%1 GB")).arg(bytes / 1024 / 1024 / 1024);
 }
 
+qreal calculateIdealFontSize(int width, const QString& text, QFont font, qreal minPointSize, qreal font_size) {
+    while(font_size >= minPointSize) {
+        font.setPointSizeF(font_size);
+        QFontMetrics fm(font);
+        if (fm.width(text) < width) {
+            break;
+        }
+        font_size -= 0.5;
+    }
+    return font_size;
+}
+
 void ClickableLabel::mouseReleaseEvent(QMouseEvent *event)
 {
     Q_EMIT clicked(event->pos());