2 * Jalview - A Sequence Alignment Editor and Viewer ($$Version-Rel$$)
3 * Copyright (C) $$Year-Rel$$ The Jalview Authors
5 * This file is part of Jalview.
7 * Jalview is free software: you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation, either version 3
10 * of the License, or (at your option) any later version.
12 * Jalview is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty
14 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR
15 * PURPOSE. See the GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with Jalview. If not, see <http://www.gnu.org/licenses/>.
19 * The Jalview Authors are detailed in the 'AUTHORS' file.
21 package jalview.datamodel;
23 import java.util.ArrayList;
24 import java.util.Iterator;
25 import java.util.List;
28 * An iterator which iterates over visible regions in a range. Provides a
29 * special "endsAtHidden" indicator to allow callers to determine if the final
30 * visible column is adjacent to a hidden region.
32 public class VisibleContigsIterator implements Iterator<int[]>
34 private List<int[]> vcontigs = new ArrayList<>();
36 private int currentPosition = 0;
38 private boolean endsAtHidden = false;
40 VisibleContigsIterator(int start, int end,
41 List<int[]> hiddenColumns)
43 if (hiddenColumns != null && hiddenColumns.size() > 0)
49 for (int[] region : hiddenColumns)
52 hideStart = region[0];
60 if (hideStart > vstart)
62 if (end - 1 > hideStart - 1)
64 int[] contig = new int[] { vstart, hideStart - 1 };
70 int[] contig = new int[] { vstart, end - 1 };
76 // exit if we're past the end
85 int[] contig = new int[] { vstart, end - 1 };
92 int[] contig = new int[] { start, end - 1 };
98 public boolean hasNext()
100 return (currentPosition < vcontigs.size());
106 int[] result = vcontigs.get(currentPosition);
111 public boolean endsAtHidden()