+ return appendText(sb0, sb, maxlength);
+ }
+
+ /**
+ * Appends sb to sb0, and returns false, unless maxlength is not zero and
+ * appending would make the result longer than or equal to maxlength, in which
+ * case the append is not done and returns true
+ *
+ * @param sb0
+ * @param sb
+ * @param maxlength
+ * @return
+ */
+ private static boolean appendText(StringBuilder sb0, StringBuilder sb,
+ int maxlength)
+ {
+ if (maxlength == 0 || sb0.length() + sb.length() < maxlength)
+ {
+ sb0.append(sb);
+ return false;
+ }
+ return true;
+ }
+
+ /**
+ * Answers true if score should be shown, else false. Score is shown if it is
+ * not NaN, and the feature type has a non-trivial min-max score range
+ */
+ boolean showScore(SequenceFeature feature, FeatureRendererModel fr)
+ {
+ if (Float.isNaN(feature.getScore()))
+ {
+ return false;
+ }
+ if (fr == null)
+ {
+ return true;
+ }
+ float[][] minMax = fr.getMinMax().get(feature.getType());
+
+ /*
+ * minMax[0] is the [min, max] score range for positional features
+ */
+ if (minMax == null || minMax[0] == null || minMax[0][0] == minMax[0][1])
+ {
+ return false;
+ }
+ return true;