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package bjc.utils.gui.browser;
/** Provides header text for reserved blank columns. */
@FunctionalInterface
public interface BlankHeaderProvider {
/**
* @param depthFromRoot 0 = first real column (children of root), 1 = second,
* etc. For blanks, this is the depth they would represent
* if populated now.
* @param blankOrdinal 0-based ordinal among the consecutive blanks
* (left-to-right).
* @param model current model.
* @return header text; return null/empty to hide the header for that blank.
*/
String getBlankHeader(int depthFromRoot, int blankOrdinal, JBrowserModel model);
}
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