copyEmptyFrom method
Copies just the style/link/drawable payload from other and clears the
content to a plain space cell.
Implementation
void copyEmptyFrom(Cell other) {
_releaseLink();
_releasePooledContent();
_style = other._style;
_styleId = other._styleId;
_link = other._link;
_linkId = other._linkId;
_width = 1;
_contentKind = _CellContentKind.space;
_contentValue = 0;
drawable = other.drawable;
if (_linkId != 0) {
_linkRegistry.retain(_linkId);
_attachLinkFinalizerIfNeeded();
}
}