--- /dev/null
+/*
+ * Jalview - A Sequence Alignment Editor and Viewer ($$Version-Rel$$)
+ * Copyright (C) $$Year-Rel$$ The Jalview Authors
+ *
+ * This file is part of Jalview.
+ *
+ * Jalview is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, either version 3
+ * of the License, or (at your option) any later version.
+ *
+ * Jalview is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ * PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Jalview. If not, see <http://www.gnu.org/licenses/>.
+ * The Jalview Authors are detailed in the 'AUTHORS' file.
+ */
+package jalview.datamodel;
+
+import java.awt.Color;
+
+import jalview.renderer.ContactGeometry.contactInterval;
+
+/**
+ * helper class to compute min/max/mean for a range on a contact list
+ *
+ * @author jprocter
+ *
+ */
+public class ContactListImpl implements ContactListI
+{
+ ContactListProviderI clist;
+
+ public static ContactListI newContactList(ContactListProviderI list)
+ {
+ return new ContactListImpl(list);
+ }
+
+ public ContactListImpl(ContactListProviderI list)
+ {
+ clist = list;
+ }
+
+ @Override
+ public int getPosition()
+ {
+ return clist.getPosition();
+ }
+
+ @Override
+ public double getContactAt(int column)
+ {
+ return clist.getContactAt(column);
+ }
+
+ @Override
+ public int getContactHeight()
+ {
+ return clist.getContactHeight();
+ }
+
+ @Override
+ public ContactRange getRangeFor(int from_column, int to_column)
+ {
+ // TODO: consider caching ContactRange for a particular call ?
+ if (clist instanceof ContactListI)
+ {
+ // clist may implement getRangeFor in a more efficient way, so use theirs
+ return ((ContactListI) clist).getRangeFor(from_column, to_column);
+ }
+ if (from_column < 0)
+ {
+ from_column = 0;
+ }
+ if (to_column >= getContactHeight())
+ {
+ to_column = getContactHeight() - 1;
+ }
+ ContactRange cr = new ContactRange();
+ cr.setFrom_column(from_column);
+ cr.setTo_column(to_column);
+ double tot = 0;
+ for (int i = from_column; i <= to_column; i++)
+ {
+ double contact = getContactAt(i);
+ tot += contact;
+ if (i == from_column)
+ {
+ cr.setMin(contact);
+ cr.setMax(contact);
+ cr.setMinPos(i);
+ cr.setMaxPos(i);
+ }
+ else
+ {
+ if (cr.getMax() < contact)
+ {
+ cr.setMax(contact);
+ cr.setMaxPos(i);
+ }
+ if (cr.getMin() < contact)
+ {
+ cr.setMin(contact);
+ cr.setMinPos(i);
+ }
+ }
+ }
+ if (tot > 0 && to_column > from_column)
+ {
+ cr.setMean(tot / (1 + to_column - from_column));
+ }
+ else
+ {
+ cr.setMean(tot);
+ }
+ return cr;
+ }
+
+ @Override
+ public int[] getMappedPositionsFor(int cStart, int cEnd)
+ {
+ return clist.getMappedPositionsFor(cStart, cEnd);
+ }
+
+ @Override
+ public Color getColourForGroup()
+ {
+ return clist.getColourForGroup();
+ }
+}