Port away from deprecated API in Qt 6.6: QColor::setNamedColor

The replacement, QColor::fromString() exists since Qt 6.4.

Author: dfaure-kdab

QXlsx/CMakeLists.txt

@@ -147,7 +147,7 @@ target_compile_definitions(QXlsx PRIVATE
     QT_USE_QSTRINGBUILDER
     QT_NO_SIGNALS_SLOTS_KEYWORDS
     QT_USE_FAST_OPERATOR_PLUS
-    QT_DISABLE_DEPRECATED_BEFORE=0x060200
+    QT_DISABLE_DEPRECATED_BEFORE=0x060600
 )
 
 if (NOT WIN32)

QXlsx/source/xlsxcolor.cpp

@@ -116,13 +116,21 @@ XlsxColor::operator QVariant() const
 
 QColor XlsxColor::fromARGBString(const QString &c)
 {
+#if QT_VERSION >= QT_VERSION_CHECK(6, 4, 0)
+    if (c.startsWith(u'#')) {
+        return QColor::fromString(c);
+    } else {
+        return QColor::fromString(QLatin1Char('#') + c);
+    }
+#else
     QColor color;
     if (c.startsWith(u'#')) {
         color.setNamedColor(c);
     } else {
         color.setNamedColor(QLatin1Char('#') + c);
     }
     return color;
+#endif
 }
 
 QString XlsxColor::toARGBString(const QColor &c)