+ // Check for RNA secondary structure
+ {
+ // System.out.println(annotations[i].secondaryStructure);
+ // TODO: 2.8.2 should this ss symbol validation check be a function in RNA/ResidueProperties ?
+ if (annotations[i].secondaryStructure == '('
+ || annotations[i].secondaryStructure == '['
+ || annotations[i].secondaryStructure == '<'
+ || annotations[i].secondaryStructure == '{'
+ || annotations[i].secondaryStructure == 'A'
+ || annotations[i].secondaryStructure == 'B'
+ || annotations[i].secondaryStructure == 'C'
+ || annotations[i].secondaryStructure == 'D'
+ || annotations[i].secondaryStructure == 'E'
+ || annotations[i].secondaryStructure == 'F'
+ || annotations[i].secondaryStructure == 'G'
+ || annotations[i].secondaryStructure == 'H'
+ || annotations[i].secondaryStructure == 'I'
+ || annotations[i].secondaryStructure == 'J'
+ || annotations[i].secondaryStructure == 'K'
+ || annotations[i].secondaryStructure == 'L'
+ || annotations[i].secondaryStructure == 'M'
+ || annotations[i].secondaryStructure == 'N'
+ || annotations[i].secondaryStructure == 'O'
+ || annotations[i].secondaryStructure == 'P'
+ || annotations[i].secondaryStructure == 'Q'
+ || annotations[i].secondaryStructure == 'R'
+ || annotations[i].secondaryStructure == 'S'
+ || annotations[i].secondaryStructure == 'T'
+ || annotations[i].secondaryStructure == 'U'
+ || annotations[i].secondaryStructure == 'V'
+ || annotations[i].secondaryStructure == 'W'
+ || annotations[i].secondaryStructure == 'X'
+ || annotations[i].secondaryStructure == 'Y'
+ || annotations[i].secondaryStructure == 'Z')
+ {
+ hasIcons |= true;
+ isrna |= true;
+ }
+ }
+
+ // System.out.println("displaychar " + annotations[i].displayCharacter);
+
+ if (annotations[i].displayCharacter == null
+ || annotations[i].displayCharacter.length() == 0)
+ {
+ rnastring.append('.');
+ continue;
+ }
+ if (annotations[i].displayCharacter.length() == 1)
+ {
+ firstChar = annotations[i].displayCharacter.charAt(0);
+ // check to see if it looks like a sequence or is secondary structure
+ // labelling.
+ if (annotations[i].secondaryStructure != ' '
+ && !hasIcons
+ &&
+ // Uncomment to only catch case where
+ // displayCharacter==secondary
+ // Structure
+ // to correctly redisplay SS annotation imported from Stockholm,
+ // exported to JalviewXML and read back in again.
+ // &&
+ // annotations[i].displayCharacter.charAt(0)==annotations[i].secondaryStructure
+ firstChar != ' '
+ && firstChar != '$'
+ && firstChar != 0xCE
+ && firstChar != '('
+ && firstChar != '['
+ && firstChar != '>'
+ && firstChar != '{'
+ && firstChar != 'A'
+ && firstChar != 'B'
+ && firstChar != 'C'
+ && firstChar != 'D'
+ && firstChar != 'E'
+ && firstChar != 'F'
+ && firstChar != 'G'
+ && firstChar != 'H'
+ && firstChar != 'I'
+ && firstChar != 'J'
+ && firstChar != 'K'
+ && firstChar != 'L'
+ && firstChar != 'M'
+ && firstChar != 'N'
+ && firstChar != 'O'
+ && firstChar != 'P'
+ && firstChar != 'Q'
+ && firstChar != 'R'
+ && firstChar != 'S'
+ && firstChar != 'T'
+ && firstChar != 'U'
+ && firstChar != 'V'
+ && firstChar != 'W'
+ && firstChar != 'X'
+ && firstChar != 'Y'
+ && firstChar != 'Z'
+ && firstChar != '-'
+ && firstChar < jalview.schemes.ResidueProperties.aaIndex.length)
+ {
+ if (jalview.schemes.ResidueProperties.aaIndex[firstChar] < 23) // TODO:
+ // parameterise
+ // to
+ // gap
+ // symbol
+ // number
+ {
+ nonSSLabel = true;
+ }
+ }
+ }
+ else
+ {
+ rnastring.append(annotations[i].displayCharacter.charAt(1));
+ }
+
+ if (annotations[i].displayCharacter.length() > 0)
+ {
+ hasText = true;
+ }
+ }
+
+ if (nonSSLabel)
+ {
+ hasIcons = false;
+ for (int j = 0; j < annotations.length; j++)
+ {
+ if (annotations[j] != null
+ && annotations[j].secondaryStructure != ' ')
+ {
+ annotations[j].displayCharacter = String
+ .valueOf(annotations[j].secondaryStructure);
+ annotations[j].secondaryStructure = ' ';
+ }
+
+ }
+ }
+ else
+ {
+ if (isrna)
+ {
+ _updateRnaSecStr(new AnnotCharSequence());
+ }
+ }
+
+ annotationId = this.hashCode() + "";
+ }
+
+ /**
+ * flyweight access to positions in the alignment annotation row for RNA
+ * processing
+ *
+ * @author jimp
+ *
+ */
+ private class AnnotCharSequence implements CharSequence
+ {
+ int offset = 0;
+
+ int max = 0;
+
+ public AnnotCharSequence()
+ {
+ this(0, annotations.length);
+ }
+
+ public AnnotCharSequence(int start, int end)
+ {
+ offset = start;
+ max = end;
+ }
+
+ @Override
+ public CharSequence subSequence(int start, int end)
+ {
+ return new AnnotCharSequence(offset + start, offset + end);
+ }
+
+ @Override
+ public int length()
+ {
+ return max - offset;
+ }
+
+ @Override
+ public char charAt(int index)
+ {
+ String dc;
+ return ((index + offset < 0) || (index + offset) >= max
+ || annotations[index + offset] == null || (dc = annotations[index
+ + offset].displayCharacter.trim()).length() < 1) ? '.' : dc
+ .charAt(0);