When mapping color for rendering highlighted (identified) features,

don't allow pixels which were previously non-transparent to become totally transparent. This can result in invisible highlights for very transparent symbols. Fixes #54830 (cherry picked from commit 250c156)
qgis · Oct 10, 2023 · 33dc65b · 33dc65b
1 parent ef8cd27
commit 33dc65b
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/gui/qgshighlight.cpp b/src/gui/qgshighlight.cpp
@@ -379,7 +379,7 @@ void QgsHighlight::paint( QPainter *p )
           if ( alpha > 0 )
           {
             int green = qGreen( line[c] );
-            line[c] = qRgba( penRed, penGreen, penBlue, std::clamp( static_cast< int >( alpha - ( green * k ) ), 0, 255 ) );
+            line[c] = qRgba( penRed, penGreen, penBlue, std::clamp( static_cast< int >( alpha - ( green * k ) ), 30, 255 ) );
           }
         }
       }