+
+ Annotation aj = ann.annotations[j];
+ // 'use original colours' => colourScheme != null
+ // -> look up colour to be used
+ // predefined colours => preconfigured shading
+ // -> only use original colours reference if thresholding enabled &
+ // minmax exists
+ // annotation.hasIcons => null or black colours replaced with glyph
+ // colours
+ // -> reuse original colours if present
+ // -> if thresholding enabled then return colour on non-whitespace glyph
+
+ /*
+ * if threshold applies, and annotation fails the test - no colour (white)
+ */
+ if (annotationThreshold != null)
+ {
+ if ((aboveAnnotationThreshold == ABOVE_THRESHOLD
+ && aj.value < annotationThreshold.value)
+ || (aboveAnnotationThreshold == BELOW_THRESHOLD
+ && aj.value > annotationThreshold.value))
+ {
+ return Color.white;
+ }
+ }
+
+ /*
+ * If 'use original colours' then return the colour of the annotation
+ * at the aligned position - computed using the background colour scheme
+ */
+ if (predefinedColours && aj.colour != null
+ && !aj.colour.equals(Color.black))
+ {
+ return aj.colour;
+ }
+
+ Color result = Color.white;
+ if (ann.hasIcons && ann.graph == AlignmentAnnotation.NO_GRAPH)