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.commands;
23 import jalview.analysis.AlignSeq;
24 import jalview.datamodel.AlignmentAnnotation;
25 import jalview.datamodel.AlignmentI;
26 import jalview.datamodel.Annotation;
27 import jalview.datamodel.Range;
28 import jalview.datamodel.Sequence;
29 import jalview.datamodel.SequenceFeature;
30 import jalview.datamodel.SequenceI;
31 import jalview.datamodel.features.SequenceFeaturesI;
32 import jalview.util.Comparison;
33 import jalview.util.ReverseListIterator;
34 import jalview.util.StringUtils;
36 import java.util.ArrayList;
37 import java.util.HashMap;
38 import java.util.Hashtable;
39 import java.util.Iterator;
40 import java.util.List;
41 import java.util.ListIterator;
51 * Description: Essential information for performing undo and redo for cut/paste
52 * insert/delete gap which can be stored in the HistoryList
56 * Copyright: Copyright (c) 2006
60 * Company: Dundee University
63 * @author not attributable
66 public class EditCommand implements CommandI
73 public Action getUndoAction()
81 public Action getUndoAction()
89 public Action getUndoAction()
97 public Action getUndoAction()
105 public Action getUndoAction()
113 public Action getUndoAction()
118 public abstract Action getUndoAction();
121 private List<Edit> edits = new ArrayList<Edit>();
129 public EditCommand(String desc)
131 this.description = desc;
134 public EditCommand(String desc, Action command, SequenceI[] seqs,
135 int position, int number, AlignmentI al)
137 this.description = desc;
138 if (command == Action.CUT || command == Action.PASTE)
140 setEdit(new Edit(command, seqs, position, number, al));
143 performEdit(0, null);
146 public EditCommand(String desc, Action command, String replace,
147 SequenceI[] seqs, int position, int number, AlignmentI al)
149 this.description = desc;
150 if (command == Action.REPLACE)
152 setEdit(new Edit(command, seqs, position, number, al, replace));
155 performEdit(0, null);
159 * Set the list of edits to the specified item (only).
163 protected void setEdit(Edit e)
170 * Add the given edit command to the stored list of commands. If simply
171 * expanding the range of the last command added, then modify it instead of
172 * adding a new command.
176 public void addEdit(Edit e)
178 if (!expandEdit(edits, e))
185 * Returns true if the new edit is incorporated by updating (expanding the
186 * range of) the last edit on the list, else false. We can 'expand' the last
187 * edit if the new one is the same action, on the same sequences, and acts on
188 * a contiguous range. This is the case where a mouse drag generates a series
189 * of contiguous gap insertions or deletions.
195 protected static boolean expandEdit(List<Edit> edits, Edit e)
197 if (edits == null || edits.isEmpty())
201 Edit lastEdit = edits.get(edits.size() - 1);
202 Action action = e.command;
203 if (lastEdit.command != action)
209 * Both commands must act on the same sequences - compare the underlying
210 * dataset sequences, rather than the aligned sequences, which change as
213 if (lastEdit.seqs.length != e.seqs.length)
217 for (int i = 0; i < e.seqs.length; i++)
219 if (lastEdit.seqs[i].getDatasetSequence() != e.seqs[i]
220 .getDatasetSequence())
227 * Check a contiguous edit; either
229 * <li>a new Insert <n> positions to the right of the last <insert n>,
231 * <li>a new Delete <n> gaps which is <n> positions to the left of the last
235 boolean contiguous = (action == Action.INSERT_GAP
236 && e.position == lastEdit.position + lastEdit.number)
237 || (action == Action.DELETE_GAP
238 && e.position + e.number == lastEdit.position);
242 * We are just expanding the range of the last edit. For delete gap, also
243 * moving the start position left.
245 lastEdit.number += e.number;
246 lastEdit.seqs = e.seqs;
247 if (action == Action.DELETE_GAP)
257 * Clear the list of stored edit commands.
260 protected void clearEdits()
266 * Returns the i'th stored Edit command.
271 protected Edit getEdit(int i)
273 if (i >= 0 && i < edits.size())
281 final public String getDescription()
293 * Return the alignment for the first edit (or null if no edit).
297 final public AlignmentI getAlignment()
299 return (edits.isEmpty() ? null : edits.get(0).al);
303 * append a new editCommand Note. this shouldn't be called if the edit is an
304 * operation affects more alignment objects than the one referenced in al (for
305 * example, cut or pasting whole sequences). Use the form with an additional
306 * AlignmentI[] views parameter.
315 final public void appendEdit(Action command, SequenceI[] seqs,
316 int position, int number, AlignmentI al, boolean performEdit)
318 appendEdit(command, seqs, position, number, al, performEdit, null);
322 * append a new edit command with a set of alignment views that may be
333 final public void appendEdit(Action command, SequenceI[] seqs,
334 int position, int number, AlignmentI al, boolean performEdit,
337 Edit edit = new Edit(command, seqs, position, number, al);
338 appendEdit(edit, al, performEdit, views);
342 * Overloaded method that accepts an Edit object with additional parameters.
349 final public void appendEdit(Edit edit, AlignmentI al,
350 boolean performEdit, AlignmentI[] views)
352 if (al.getHeight() == edit.seqs.length)
355 edit.fullAlignmentHeight = true;
362 performEdit(edit, views);
367 * Execute all the edit commands, starting at the given commandIndex
369 * @param commandIndex
372 public final void performEdit(int commandIndex, AlignmentI[] views)
374 ListIterator<Edit> iterator = edits.listIterator(commandIndex);
375 while (iterator.hasNext())
377 Edit edit = iterator.next();
378 performEdit(edit, views);
383 * Execute one edit command in all the specified alignment views
388 protected static void performEdit(Edit edit, AlignmentI[] views)
390 switch (edit.command)
408 // TODO:add deleteNuc for UNDO
410 // insertNuc(edits[e]);
418 final public void doCommand(AlignmentI[] views)
420 performEdit(0, views);
424 * Undo the stored list of commands, in reverse order.
427 final public void undoCommand(AlignmentI[] views)
429 ListIterator<Edit> iterator = edits.listIterator(edits.size());
430 while (iterator.hasPrevious())
432 Edit e = iterator.previous();
460 * Insert gap(s) in sequences as specified by the command, and adjust
465 final private static void insertGap(Edit command)
468 for (int s = 0; s < command.seqs.length; s++)
470 command.seqs[s].insertCharAt(command.position, command.number,
472 // System.out.println("pos: "+command.position+" number:
473 // "+command.number);
476 adjustAnnotations(command, true, false, null);
480 // final void insertNuc(Edit command)
483 // for (int s = 0; s < command.seqs.length; s++)
485 // System.out.println("pos: "+command.position+" number: "+command.number);
486 // command.seqs[s].insertCharAt(command.position, command.number,'A');
489 // adjustAnnotations(command, true, false, null);
493 * Delete gap(s) in sequences as specified by the command, and adjust
498 final static private void deleteGap(Edit command)
500 for (int s = 0; s < command.seqs.length; s++)
502 command.seqs[s].deleteChars(command.position,
503 command.position + command.number);
506 adjustAnnotations(command, false, false, null);
510 * Carry out a Cut action. The cut characters are saved in case Undo is
516 static void cut(Edit command, AlignmentI[] views)
518 boolean seqDeleted = false;
519 command.string = new char[command.seqs.length][];
521 for (int i = 0; i < command.seqs.length; i++)
523 final SequenceI sequence = command.seqs[i];
524 if (sequence.getLength() > command.position)
526 command.string[i] = sequence.getSequence(command.position,
527 command.position + command.number);
528 SequenceI oldds = sequence.getDatasetSequence();
529 if (command.oldds != null && command.oldds[i] != null)
531 // we are redoing an undone cut.
532 sequence.setDatasetSequence(null);
534 Range cutPositions = sequence.findPositions(command.position + 1,
535 command.position + command.number);
536 boolean cutIsInternal = cutPositions != null
537 && sequence.getStart() != cutPositions
538 .getBegin() && sequence.getEnd() != cutPositions.getEnd();
539 sequence.deleteChars(command.position, command.position
542 if (command.oldds != null && command.oldds[i] != null)
544 // oldds entry contains the cut dataset sequence.
545 sequence.setDatasetSequence(command.oldds[i]);
546 command.oldds[i] = oldds;
550 // modify the oldds if necessary
551 if (oldds != sequence.getDatasetSequence()
552 || sequence.getFeatures().hasFeatures())
554 if (command.oldds == null)
556 command.oldds = new SequenceI[command.seqs.length];
558 command.oldds[i] = oldds;
559 if (oldds != sequence.getDatasetSequence())
561 oldds.getFeatures().deleteAll();
564 if (cutPositions != null)
566 cutFeatures(command, sequence, cutPositions.getBegin(),
567 cutPositions.getEnd(), cutIsInternal);
573 if (sequence.getLength() < 1)
575 command.al.deleteSequence(sequence);
580 adjustAnnotations(command, false, seqDeleted, views);
584 * Perform the given Paste command. This may be to add cut or copied sequences
585 * to an alignment, or to undo a 'Cut' action on a region of the alignment.
590 static void paste(Edit command, AlignmentI[] views)
592 boolean seqWasDeleted = false;
594 for (int i = 0; i < command.seqs.length; i++)
596 boolean newDSNeeded = false;
597 boolean newDSWasNeeded = command.oldds != null
598 && command.oldds[i] != null;
599 SequenceI sequence = command.seqs[i];
600 if (sequence.getLength() < 1)
603 * sequence was deleted; re-add it to the alignment
605 if (command.alIndex[i] < command.al.getHeight())
607 List<SequenceI> sequences;
608 synchronized (sequences = command.al.getSequences())
610 if (!(command.alIndex[i] < 0))
612 sequences.add(command.alIndex[i], sequence);
618 command.al.addSequence(sequence);
620 seqWasDeleted = true;
622 int newStart = sequence.getStart();
623 int newEnd = sequence.getEnd();
625 StringBuilder tmp = new StringBuilder();
626 tmp.append(sequence.getSequence());
627 // Undo of a delete does not replace original dataset sequence on to
628 // alignment sequence.
633 if (command.string != null && command.string[i] != null)
635 if (command.position >= tmp.length())
637 // This occurs if padding is on, and residues
638 // are removed from end of alignment
639 int len = command.position - tmp.length();
642 tmp.append(command.gapChar);
646 tmp.insert(command.position, command.string[i]);
647 for (int s = 0; s < command.string[i].length; s++)
649 if (!Comparison.isGap(command.string[i][s]))
655 start = sequence.findPosition(command.position);
657 // .findPosition(command.position + command.number);
659 if (sequence.getStart() == start)
669 command.string[i] = null;
672 sequence.setSequence(tmp.toString());
673 sequence.setStart(newStart);
674 sequence.setEnd(newEnd);
677 * command and Undo share the same dataset sequence if cut was
678 * at start or end of sequence
680 boolean sameDatasetSequence = false;
683 if (sequence.getDatasetSequence() != null)
688 ds = command.oldds[i];
692 // make a new DS sequence
693 // use new ds mechanism here
694 String ungapped = AlignSeq.extractGaps(Comparison.GapChars,
695 sequence.getSequenceAsString());
696 ds = new Sequence(sequence.getName(), ungapped,
697 sequence.getStart(), sequence.getEnd());
698 ds.setDescription(sequence.getDescription());
700 if (command.oldds == null)
702 command.oldds = new SequenceI[command.seqs.length];
704 command.oldds[i] = sequence.getDatasetSequence();
705 sameDatasetSequence = ds == sequence.getDatasetSequence();
706 ds.setSequenceFeatures(sequence.getSequenceFeatures());
707 sequence.setDatasetSequence(ds);
709 undoCutFeatures(command, command.seqs[i], start, length,
710 sameDatasetSequence);
713 adjustAnnotations(command, true, seqWasDeleted, views);
715 command.string = null;
718 static void replace(Edit command)
722 int start = command.position;
723 int end = command.number;
724 // TODO TUTORIAL - Fix for replacement with different length of sequence (or
726 // TODO Jalview 2.4 bugfix change to an aggregate command - original
727 // sequence string is cut, new string is pasted in.
728 command.number = start + command.string[0].length;
729 for (int i = 0; i < command.seqs.length; i++)
731 boolean newDSWasNeeded = command.oldds != null
732 && command.oldds[i] != null;
735 * cut addHistoryItem(new EditCommand("Cut Sequences", EditCommand.CUT,
736 * cut, sg.getStartRes(), sg.getEndRes()-sg.getStartRes()+1,
737 * viewport.alignment));
741 * then addHistoryItem(new EditCommand( "Add sequences",
742 * EditCommand.PASTE, sequences, 0, alignment.getWidth(), alignment) );
745 oldstring = command.seqs[i].getSequenceAsString();
746 tmp = new StringBuffer(oldstring.substring(0, start));
747 tmp.append(command.string[i]);
748 String nogaprep = jalview.analysis.AlignSeq.extractGaps(
749 jalview.util.Comparison.GapChars,
750 new String(command.string[i]));
751 int ipos = command.seqs[i].findPosition(start)
752 - command.seqs[i].getStart();
753 tmp.append(oldstring.substring(end));
754 command.seqs[i].setSequence(tmp.toString());
755 command.string[i] = oldstring.substring(start, end).toCharArray();
756 String nogapold = jalview.analysis.AlignSeq.extractGaps(
757 jalview.util.Comparison.GapChars,
758 new String(command.string[i]));
759 if (!nogaprep.toLowerCase().equals(nogapold.toLowerCase()))
763 SequenceI oldds = command.seqs[i].getDatasetSequence();
764 command.seqs[i].setDatasetSequence(command.oldds[i]);
765 command.oldds[i] = oldds;
769 if (command.oldds == null)
771 command.oldds = new SequenceI[command.seqs.length];
773 command.oldds[i] = command.seqs[i].getDatasetSequence();
774 SequenceI newds = new Sequence(
775 command.seqs[i].getDatasetSequence());
776 String fullseq, osp = newds.getSequenceAsString();
777 fullseq = osp.substring(0, ipos) + nogaprep
778 + osp.substring(ipos + nogaprep.length());
779 newds.setSequence(fullseq.toUpperCase());
780 // TODO: JAL-1131 ensure newly created dataset sequence is added to
782 // dataset sequences associated with the alignment.
783 // TODO: JAL-1131 fix up any annotation associated with new dataset
784 // sequence to ensure that original sequence/annotation relationships
786 command.seqs[i].setDatasetSequence(newds);
795 final static void adjustAnnotations(Edit command, boolean insert,
796 boolean modifyVisibility, AlignmentI[] views)
798 AlignmentAnnotation[] annotations = null;
800 if (modifyVisibility && !insert)
802 // only occurs if a sequence was added or deleted.
803 command.deletedAnnotationRows = new Hashtable<SequenceI, AlignmentAnnotation[]>();
805 if (command.fullAlignmentHeight)
807 annotations = command.al.getAlignmentAnnotation();
812 AlignmentAnnotation[] tmp;
813 for (int s = 0; s < command.seqs.length; s++)
815 command.seqs[s].sequenceChanged();
817 if (modifyVisibility)
819 // Rows are only removed or added to sequence object.
823 tmp = command.seqs[s].getAnnotation();
826 int alen = tmp.length;
827 for (int aa = 0; aa < tmp.length; aa++)
829 if (!command.al.deleteAnnotation(tmp[aa]))
831 // strip out annotation not in the current al (will be put
832 // back on insert in all views)
837 command.seqs[s].setAlignmentAnnotation(null);
838 if (alen != tmp.length)
840 // save the non-null annotation references only
841 AlignmentAnnotation[] saved = new AlignmentAnnotation[alen];
842 for (int aa = 0, aapos = 0; aa < tmp.length; aa++)
846 saved[aapos++] = tmp[aa];
851 command.deletedAnnotationRows.put(command.seqs[s], saved);
852 // and then remove any annotation in the other views
853 for (int alview = 0; views != null
854 && alview < views.length; alview++)
856 if (views[alview] != command.al)
858 AlignmentAnnotation[] toremove = views[alview]
859 .getAlignmentAnnotation();
860 if (toremove == null || toremove.length == 0)
864 // remove any alignment annotation on this sequence that's
865 // on that alignment view.
866 for (int aa = 0; aa < toremove.length; aa++)
868 if (toremove[aa].sequenceRef == command.seqs[s])
870 views[alview].deleteAnnotation(toremove[aa]);
878 // save all the annotation
879 command.deletedAnnotationRows.put(command.seqs[s], tmp);
886 if (command.deletedAnnotationRows != null
887 && command.deletedAnnotationRows
888 .containsKey(command.seqs[s]))
890 AlignmentAnnotation[] revealed = command.deletedAnnotationRows
891 .get(command.seqs[s]);
892 command.seqs[s].setAlignmentAnnotation(revealed);
893 if (revealed != null)
895 for (int aa = 0; aa < revealed.length; aa++)
897 // iterate through al adding original annotation
898 command.al.addAnnotation(revealed[aa]);
900 for (int aa = 0; aa < revealed.length; aa++)
902 command.al.setAnnotationIndex(revealed[aa], aa);
904 // and then duplicate added annotation on every other alignment
906 for (int vnum = 0; views != null
907 && vnum < views.length; vnum++)
909 if (views[vnum] != command.al)
911 int avwidth = views[vnum].getWidth() + 1;
912 // duplicate in this view
913 for (int a = 0; a < revealed.length; a++)
915 AlignmentAnnotation newann = new AlignmentAnnotation(
917 command.seqs[s].addAlignmentAnnotation(newann);
918 newann.padAnnotation(avwidth);
919 views[vnum].addAnnotation(newann);
920 views[vnum].setAnnotationIndex(newann, a);
930 if (command.seqs[s].getAnnotation() == null)
937 annotations = command.seqs[s].getAnnotation();
941 tmp = new AlignmentAnnotation[aSize
942 + command.seqs[s].getAnnotation().length];
944 System.arraycopy(annotations, 0, tmp, 0, aSize);
946 System.arraycopy(command.seqs[s].getAnnotation(), 0, tmp, aSize,
947 command.seqs[s].getAnnotation().length);
951 aSize = annotations.length;
955 if (annotations == null)
962 command.deletedAnnotations = new Hashtable<String, Annotation[]>();
967 for (int a = 0; a < annotations.length; a++)
969 if (annotations[a].autoCalculated
970 || annotations[a].annotations == null)
977 aSize = annotations[a].annotations.length;
980 temp = new Annotation[aSize + command.number];
981 if (annotations[a].padGaps)
983 for (int aa = 0; aa < temp.length; aa++)
985 temp[aa] = new Annotation(command.gapChar + "", null, ' ', 0);
991 if (command.position < aSize)
993 if (command.position + command.number >= aSize)
999 tSize = aSize - command.number;
1011 temp = new Annotation[tSize];
1016 if (command.position < annotations[a].annotations.length)
1018 System.arraycopy(annotations[a].annotations, 0, temp, 0,
1021 if (command.deletedAnnotations != null
1022 && command.deletedAnnotations
1023 .containsKey(annotations[a].annotationId))
1025 Annotation[] restore = command.deletedAnnotations
1026 .get(annotations[a].annotationId);
1028 System.arraycopy(restore, 0, temp, command.position,
1033 System.arraycopy(annotations[a].annotations, command.position,
1034 temp, command.position + command.number,
1035 aSize - command.position);
1039 if (command.deletedAnnotations != null
1040 && command.deletedAnnotations
1041 .containsKey(annotations[a].annotationId))
1043 Annotation[] restore = command.deletedAnnotations
1044 .get(annotations[a].annotationId);
1046 temp = new Annotation[annotations[a].annotations.length
1048 System.arraycopy(annotations[a].annotations, 0, temp, 0,
1049 annotations[a].annotations.length);
1050 System.arraycopy(restore, 0, temp,
1051 annotations[a].annotations.length, restore.length);
1055 temp = annotations[a].annotations;
1061 if (tSize != aSize || command.position < 2)
1063 int copylen = Math.min(command.position,
1064 annotations[a].annotations.length);
1067 System.arraycopy(annotations[a].annotations, 0, temp, 0,
1068 copylen); // command.position);
1071 Annotation[] deleted = new Annotation[command.number];
1072 if (copylen >= command.position)
1074 copylen = Math.min(command.number,
1075 annotations[a].annotations.length - command.position);
1078 System.arraycopy(annotations[a].annotations, command.position,
1079 deleted, 0, copylen); // command.number);
1083 command.deletedAnnotations.put(annotations[a].annotationId,
1085 if (annotations[a].annotations.length > command.position
1088 System.arraycopy(annotations[a].annotations,
1089 command.position + command.number, temp,
1090 command.position, annotations[a].annotations.length
1091 - command.position - command.number); // aSize
1096 int dSize = aSize - command.position;
1100 Annotation[] deleted = new Annotation[command.number];
1101 System.arraycopy(annotations[a].annotations, command.position,
1104 command.deletedAnnotations.put(annotations[a].annotationId,
1107 tSize = Math.min(annotations[a].annotations.length,
1109 temp = new Annotation[tSize];
1110 System.arraycopy(annotations[a].annotations, 0, temp, 0, tSize);
1114 temp = annotations[a].annotations;
1119 annotations[a].annotations = temp;
1124 * Restores features to the state before a Cut.
1126 * <li>re-add any features deleted by the cut</li>
1127 * <li>remove any truncated features created by the cut</li>
1128 * <li>shift right any features to the right of the cut</li>
1134 * the sequence the Cut applied to
1136 * the start residue position of the cut
1138 * the number of residues cut
1139 * @param sameDatasetSequence
1140 * true if dataset sequence and frame of reference were left
1141 * unchanged by the Cut
1143 final static void undoCutFeatures(Edit command, SequenceI seq,
1144 final int start, final int length, boolean sameDatasetSequence)
1146 SequenceI sequence = seq.getDatasetSequence();
1147 if (sequence == null)
1153 * shift right features that lie to the right of the restored cut (but not
1154 * if dataset sequence unchanged - so coordinates were changed by Cut)
1156 if (!sameDatasetSequence)
1159 * shift right all features right of and not
1160 * contiguous with the cut position
1162 seq.getFeatures().shiftFeatures(start + 1, length);
1165 * shift right any features that start at the cut position,
1166 * unless they were truncated
1168 List<SequenceFeature> sfs = seq.findFeatures(start, start);
1169 for (SequenceFeature sf : sfs)
1171 if (sf.getBegin() == start)
1173 if (!command.truncatedFeatures.containsKey(seq)
1174 || !command.truncatedFeatures.get(seq).contains(sf))
1177 * feature was shifted left to cut position (not truncated),
1178 * so shift it back right
1180 SequenceFeature shifted = new SequenceFeature(sf, sf.getBegin()
1181 + length, sf.getEnd() + length, sf.getFeatureGroup(),
1183 seq.addSequenceFeature(shifted);
1184 seq.deleteFeature(sf);
1191 * restore any features that were deleted or truncated
1193 if (command.deletedFeatures != null
1194 && command.deletedFeatures.containsKey(seq))
1196 for (SequenceFeature deleted : command.deletedFeatures.get(seq))
1198 sequence.addSequenceFeature(deleted);
1203 * delete any truncated features
1205 if (command.truncatedFeatures != null
1206 && command.truncatedFeatures.containsKey(seq))
1208 for (SequenceFeature amended : command.truncatedFeatures.get(seq))
1210 sequence.deleteFeature(amended);
1216 * Returns the list of edit commands wrapped by this object.
1220 public List<Edit> getEdits()
1226 * Returns a map whose keys are the dataset sequences, and values their
1227 * aligned sequences before the command edit list was applied. The aligned
1228 * sequences are copies, which may be updated without affecting the originals.
1230 * The command holds references to the aligned sequences (after editing). If
1231 * the command is an 'undo',then the prior state is simply the aligned state.
1232 * Otherwise, we have to derive the prior state by working backwards through
1233 * the edit list to infer the aligned sequences before editing.
1235 * Note: an alternative solution would be to cache the 'before' state of each
1236 * edit, but this would be expensive in space in the common case that the
1237 * original is never needed (edits are not mirrored).
1240 * @throws IllegalStateException
1241 * on detecting an edit command of a type that can't be unwound
1243 public Map<SequenceI, SequenceI> priorState(boolean forUndo)
1245 Map<SequenceI, SequenceI> result = new HashMap<SequenceI, SequenceI>();
1246 if (getEdits() == null)
1252 for (Edit e : getEdits())
1254 for (SequenceI seq : e.getSequences())
1256 SequenceI ds = seq.getDatasetSequence();
1257 // SequenceI preEdit = result.get(ds);
1258 if (!result.containsKey(ds))
1261 * copy sequence including start/end (but don't use copy constructor
1262 * as we don't need annotations)
1264 SequenceI preEdit = new Sequence("", seq.getSequenceAsString(),
1265 seq.getStart(), seq.getEnd());
1266 preEdit.setDatasetSequence(ds);
1267 result.put(ds, preEdit);
1275 * Work backwards through the edit list, deriving the sequences before each
1276 * was applied. The final result is the sequence set before any edits.
1278 Iterator<Edit> editList = new ReverseListIterator<Edit>(getEdits());
1279 while (editList.hasNext())
1281 Edit oldEdit = editList.next();
1282 Action action = oldEdit.getAction();
1283 int position = oldEdit.getPosition();
1284 int number = oldEdit.getNumber();
1285 final char gap = oldEdit.getGapCharacter();
1286 for (SequenceI seq : oldEdit.getSequences())
1288 SequenceI ds = seq.getDatasetSequence();
1289 SequenceI preEdit = result.get(ds);
1290 if (preEdit == null)
1292 preEdit = new Sequence("", seq.getSequenceAsString(),
1293 seq.getStart(), seq.getEnd());
1294 preEdit.setDatasetSequence(ds);
1295 result.put(ds, preEdit);
1298 * 'Undo' this edit action on the sequence (updating the value in the
1303 if (action == Action.DELETE_GAP)
1305 preEdit.setSequence(new String(StringUtils.insertCharAt(
1306 preEdit.getSequence(), position, number, gap)));
1308 else if (action == Action.INSERT_GAP)
1310 preEdit.setSequence(new String(StringUtils.deleteChars(
1311 preEdit.getSequence(), position, position + number)));
1315 System.err.println("Can't undo edit action " + action);
1316 // throw new IllegalStateException("Can't undo edit action " +
1327 public SequenceI[] oldds;
1329 boolean fullAlignmentHeight = false;
1331 Map<SequenceI, AlignmentAnnotation[]> deletedAnnotationRows;
1333 Map<String, Annotation[]> deletedAnnotations;
1336 * features deleted by the cut (re-add on Undo)
1337 * (including the original of any shortened features)
1339 Map<SequenceI, List<SequenceFeature>> deletedFeatures;
1342 * shortened features added by the cut (delete on Undo)
1344 Map<SequenceI, List<SequenceFeature>> truncatedFeatures;
1356 int position, number;
1360 public Edit(Action cmd, SequenceI[] sqs, int pos, int count,
1365 this.position = pos;
1366 this.number = count;
1370 Edit(Action cmd, SequenceI[] sqs, int pos, int count,
1373 this(cmd, sqs, pos, count, align.getGapCharacter());
1377 alIndex = new int[sqs.length];
1378 for (int i = 0; i < sqs.length; i++)
1380 alIndex[i] = align.findIndex(sqs[i]);
1383 fullAlignmentHeight = (align.getHeight() == sqs.length);
1386 Edit(Action cmd, SequenceI[] sqs, int pos, int count,
1387 AlignmentI align, String replace)
1389 this(cmd, sqs, pos, count, align);
1391 string = new char[sqs.length][];
1392 for (int i = 0; i < sqs.length; i++)
1394 string[i] = replace.toCharArray();
1398 public SequenceI[] getSequences()
1403 public int getPosition()
1408 public Action getAction()
1413 public int getNumber()
1418 public char getGapCharacter()
1425 * Returns an iterator over the list of edit commands which traverses the list
1426 * either forwards or backwards.
1431 public Iterator<Edit> getEditIterator(boolean forwards)
1435 return getEdits().iterator();
1439 return new ReverseListIterator<Edit>(getEdits());
1444 * Adjusts features for Cut, and saves details of changes made to allow Undo
1446 * <li>features left of the cut are unchanged</li>
1447 * <li>features right of the cut are shifted left</li>
1448 * <li>features internal to the cut region are deleted</li>
1449 * <li>features that overlap or span the cut are shortened</li>
1450 * <li>the originals of any deleted or shorted features are saved, to re-add
1452 * <li>any added (shortened) features are saved, to delete on Undo</li>
1457 * @param fromPosition
1459 * @param cutIsInternal
1461 protected static void cutFeatures(Edit command, SequenceI seq,
1462 int fromPosition, int toPosition, boolean cutIsInternal)
1464 List<SequenceFeature> added = new ArrayList<>();
1465 List<SequenceFeature> removed = new ArrayList<>();
1467 SequenceFeaturesI featureStore = seq.getFeatures();
1468 if (toPosition < fromPosition || featureStore == null)
1473 int cutStartPos = fromPosition;
1474 int cutEndPos = toPosition;
1475 int cutWidth = cutEndPos - cutStartPos + 1;
1477 synchronized (featureStore)
1480 * get features that overlap the cut region
1482 List<SequenceFeature> toAmend = featureStore.findFeatures(
1483 cutStartPos, cutEndPos);
1486 * add any contact features that span the cut region
1487 * (not returned by findFeatures)
1489 for (SequenceFeature contact : featureStore.getContactFeatures())
1491 if (contact.getBegin() < cutStartPos
1492 && contact.getEnd() > cutEndPos)
1494 toAmend.add(contact);
1499 * adjust start-end of overlapping features;
1500 * delete features enclosed by the cut;
1501 * delete partially overlapping contact features
1503 for (SequenceFeature sf : toAmend)
1505 int sfBegin = sf.getBegin();
1506 int sfEnd = sf.getEnd();
1507 int newBegin = sfBegin;
1509 boolean toDelete = false;
1510 boolean follows = false;
1512 if (sfBegin >= cutStartPos && sfEnd <= cutEndPos)
1515 * feature lies within cut region - delete it
1519 else if (sfBegin < cutStartPos && sfEnd > cutEndPos)
1522 * feature spans cut region - left-shift the end
1526 else if (sfEnd <= cutEndPos)
1529 * feature overlaps left of cut region - truncate right
1531 newEnd = cutStartPos - 1;
1532 if (sf.isContactFeature())
1537 else if (sfBegin >= cutStartPos)
1540 * remaining case - feature overlaps right
1541 * truncate left, adjust end of feature
1543 newBegin = cutIsInternal ? cutStartPos : cutEndPos + 1;
1544 newEnd = newBegin + sfEnd - cutEndPos - 1;
1545 if (sf.isContactFeature())
1551 seq.deleteFeature(sf);
1558 SequenceFeature copy = new SequenceFeature(sf, newBegin, newEnd,
1559 sf.getFeatureGroup(), sf.getScore());
1560 seq.addSequenceFeature(copy);
1569 * and left shift any features lying to the right of the cut region
1570 * (but not if the cut is at start or end of sequence)
1574 featureStore.shiftFeatures(cutEndPos + 1, -cutWidth);
1579 * save deleted and amended features, so that Undo can
1580 * re-add or delete them respectively
1582 if (command.deletedFeatures == null)
1584 command.deletedFeatures = new HashMap<>();
1586 if (command.truncatedFeatures == null)
1588 command.truncatedFeatures = new HashMap<>();
1590 command.deletedFeatures.put(seq, removed);
1591 command.truncatedFeatures.put(seq, added);