import AbstractStructure from './abstractStructure';
import BranchViewController from '../viewController/branchViewController';
import Bounds from '../utils/bounds';
import Size from '../utils/size';
export default abstract class OrgChart extends AbstractStructure {
    calcAttachedChildrenPos(branch: BranchViewController, bounds: Bounds): void;
    protected abstract isDown(): boolean;
    protected calcSpacingMajor(branch: BranchViewController): number;
    protected getChildrenSize(parent: BranchViewController, children: BranchViewController[]): Size;
}