DiffGutterOperation (@NotNull ThreeSide side, @NotNull DiffGutterOperation.ModifiersRendererBuilder builder) { if (isResolved(side)) return null; EditorEx editor = myViewer.getEditor(side); int offset = DiffGutterOperation.lineToOffset(editor, getStartLine(side)); return new DiffGutterOperation.WithModifiers(editor, offset, myViewer.getModifierProvider(), builder); }