Examples with ChangeEquation gov.sandia.n2a.ui.eq.undo.ChangeEquation used on opensource projects

Example 6 with ChangeEquation

use of gov.sandia.n2a.ui.eq.undo.ChangeEquation in project n2a by frothga.

the class NodeEquation method applyEdit.

@Override
public void applyEdit(JTree tree) {
    String input = (String) getUserObject();
    if (input.isEmpty()) {
        boolean canceled = MainFrame.instance.undoManager.getPresentationName().equals("AddEquation");
        delete(canceled);
        return;
    }
    // There are three possible outcomes of the edit:
    // 1) Nothing changed
    // 2) The name was not allowed to change
    // 3) Arbitrary change
    Variable.ParsedValue piecesBefore = new Variable.ParsedValue(source.get() + source.key());
    Variable.ParsedValue piecesAfter = new Variable.ParsedValue(input);
    NodeVariable parent = (NodeVariable) getParent();
    if (!piecesBefore.condition.equals(piecesAfter.condition)) {
        MPart partAfter = (MPart) parent.source.child("@" + piecesAfter.condition);
        if (// Can't overwrite another top-document node, unless it is a revocation ...
        partAfter != null && partAfter.isFromTopDocument()) {
            String value = partAfter.get();
            boolean revoked = value.isEmpty() || value.startsWith("$kill");
            // reject key change
            if (!revoked)
                piecesAfter.condition = piecesBefore.condition;
        }
    }
    if (piecesBefore.equals(piecesAfter)) {
        setUserObject();
        FilteredTreeModel model = (FilteredTreeModel) tree.getModel();
        model.nodeChanged(this);
        return;
    }
    // The fact that we are modifying an existing equation node indicates that the variable (parent) should only contain a combiner.
    piecesBefore.combiner = parent.source.get();
    if (piecesAfter.combiner.isEmpty())
        piecesAfter.combiner = piecesBefore.combiner;
    MainFrame.instance.undoManager.apply(new ChangeEquation(parent, piecesBefore.condition, piecesBefore.combiner, piecesBefore.expression, piecesAfter.condition, piecesAfter.combiner, piecesAfter.expression));
}