show pixel size in the raster layer properties with 19 significant

digits (fix #21023)

Author: alexbruy

src/providers/gdal/qgsgdalprovider.cpp

@@ -626,7 +626,7 @@ QString QgsGdalProvider::htmlMetadata()
     myMetadata += QStringLiteral( "<tr><td class=\"highlight\">" ) + tr( "Origin" ) + QStringLiteral( "</td><td>" ) + QString::number( mGeoTransform[0] ) + QStringLiteral( "," ) + QString::number( mGeoTransform[3] ) + QStringLiteral( "</td></tr>\n" );
 
     // Pixel size
-    myMetadata += QStringLiteral( "<tr><td class=\"highlight\">" ) + tr( "Pixel Size" ) + QStringLiteral( "</td><td>" ) + QString::number( mGeoTransform[1] ) + QStringLiteral( "," ) + QString::number( mGeoTransform[5] ) + QStringLiteral( "</td></tr>\n" );
+    myMetadata += QStringLiteral( "<tr><td class=\"highlight\">" ) + tr( "Pixel Size" ) + QStringLiteral( "</td><td>" ) + QString::number( mGeoTransform[1], 'g', 19 ) + QStringLiteral( "," ) + QString::number( mGeoTransform[5], 'g', 19 ) + QStringLiteral( "</td></tr>\n" );
   }
 
   return myMetadata;