/**
* Whenever an UndoableEdit happens the edit will either be absorbed by the current compound edit
* or a new compound edit will be started
*/
@Override
public void undoableEditHappened(UndoableEditEvent e) {
// Start a new compound edit
AbstractDocument.DefaultDocumentEvent docEvt = (DefaultDocumentEvent) e.getEdit();
if (compoundEdit == null) {
compoundEdit = startCompoundEdit(e.getEdit());
startCombine = false;
updateDirty();
return;
}
int editLine = ((SyntaxDocument) docEvt.getDocument()).getLineNumberAt(docEvt.getOffset());
// Check for an incremental edit or backspace.
// The Change in Caret position and Document length should both be
// either 1 or -1.
if ((startCombine || Math.abs(docEvt.getLength()) == 1) && editLine == lastLine) {
compoundEdit.addEdit(e.getEdit());
startCombine = false;
updateDirty();
return;
}
// Not incremental edit, end previous edit and start a new one
lastLine = editLine;
compoundEdit.end();
compoundEdit = startCompoundEdit(e.getEdit());
updateDirty();
}
public void undoableEditHappened(UndoableEditEvent e) {
UndoableEdit edit = e.getEdit();
if (edit instanceof AbstractDocument.DefaultDocumentEvent) {
AbstractDocument.DefaultDocumentEvent event = (AbstractDocument.DefaultDocumentEvent) edit;
int start = event.getOffset();
int len = event.getLength();
Debug.log(9, "undoableEditHappened " + start + "," + len);
boolean isNeedStart = false;
if (event.getType().equals(DocumentEvent.EventType.CHANGE)
|| event.getType().equals(DocumentEvent.EventType.INSERT)) {
try {
String text = event.getDocument().getText(start, len);
if (text.contains("\n")) isNeedStart = true;
} catch (BadLocationException e1) {
e1.printStackTrace();
}
}
if (current == null) {
isNeedStart = true;
} else if (lastEditName == null || !lastEditName.equals(edit.getPresentationName())) {
isNeedStart = true;
}
while (pointer < edits.size() - 1) {
edits.remove(edits.size() - 1);
isNeedStart = true;
}
if (isNeedStart) {
createCompoundEdit();
}
current.addEdit(edit);
lastEditName = edit.getPresentationName();
refreshControls();
}
}