+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public List<SequenceFeature> findFeaturesAtResidue(SequenceI sequence,
+ int resNo)
+ {
+ List<SequenceFeature> result = new ArrayList<>();
+ if (!av.areFeaturesDisplayed() || getFeaturesDisplayed() == null)
+ {
+ return result;
+ }
+
+ /*
+ * include features at the position provided their feature type is
+ * displayed, and feature group is null or the empty string
+ * or marked for display
+ */
+ Set<String> visibleFeatures = getFeaturesDisplayed()
+ .getVisibleFeatures();
+ String[] visibleTypes = visibleFeatures
+ .toArray(new String[visibleFeatures.size()]);
+ List<SequenceFeature> features = sequence.getFeatures().findFeatures(
+ resNo, resNo, visibleTypes);
+
+ for (SequenceFeature sf : features)
+ {
+ if (!featureGroupNotShown(sf))
+ {
+ result.add(sf);
+ }
+ }
+ return result;
+ }
+
+ /**
+ * Removes from the list of features any that have a feature group that is not
+ * displayed, or duplicate the location of a feature of the same type (unless
+ * a graduated colour scheme or colour by label is applied). Should be used
+ * only for features of the same feature colour (which normally implies the
+ * same feature type).
+ *
+ * @param features
+ * @param fc
+ */
+ public void filterFeaturesForDisplay(List<SequenceFeature> features,
+ FeatureColourI fc)
+ {
+ if (features.isEmpty())
+ {
+ return;
+ }
+
+ SequenceFeatures.sortFeatures(features, true);
+ boolean simpleColour = fc == null || fc.isSimpleColour();
+ SequenceFeature lastFeature = null;
+
+ Iterator<SequenceFeature> it = features.iterator();
+ while (it.hasNext())
+ {
+ SequenceFeature sf = it.next();
+ if (featureGroupNotShown(sf))
+ {
+ it.remove();
+ continue;
+ }
+
+ /*
+ * a feature is redundant for rendering purposes if it has the
+ * same extent as another (so would just redraw the same colour);
+ * (checking type and isContactFeature as a fail-safe here, although
+ * currently they are guaranteed to match in this context)
+ * don't remove 'redundant' features if transparency is applied
+ * (as feature count affects depth of feature colour)
+ */
+ if (simpleColour && transparency == 1f)
+ {
+ if (lastFeature != null && sf.getBegin() == lastFeature.getBegin()
+ && sf.getEnd() == lastFeature.getEnd()
+ && sf.isContactFeature() == lastFeature.isContactFeature()
+ && sf.getType().equals(lastFeature.getType()))
+ {
+ it.remove();
+ }
+ }
+ lastFeature = sf;
+ }
+ }
+