protected void applyFilterChanged() {
		if (adjustingApplyFilter) {
			return;
		}
		for (ActionListener listener : listenerList) {
			listener.actionPerformed(new ActionEvent(this, 0, APPLY_FILTER_CHANGED_ACTION));
		}
	}
Sets the diff tool merge filter settings for applying differences.
@param filter the new apply Filter settings.
Ghidra/Features/ProgramDiff/src/main/java/ghidra/app/plugin/core/diff/DiffApplySettingsProvider.java