import { ElementRef, Renderer2, OnInit, EventEmitter, AfterViewInit } from '@angular/core';
import { CheckboxColumnItem } from '../models';
/**
 * Directive for checkbox column - check all
 *
 * For parent checkbox, use directive:
 *
 * @example
 * <ugl-checkbox
 *   [name]="'checkbox'"
 *   uglCheckboxColumn
 *   #selectAll="checkboxColumn"
 *   [items]="items"
 *   (checkboxColumnChange)="checkAll($event)">
 * </ugl-checkbox>
 *
 * // For children checkboxes, convert list into a CheckboxListColumn, to be used in interator:
 * this.items = CheckboxListColumn.create<any>(listItems);
 *
 * // Then, use change method of directive on component:
 * <div *ngFor="let item of items; let idx = index;">
 *    <ugl-checkbox
 *      [name]="'checkbox-item-' + idx"
 *      [isChecked]="item.selected"
 *      (checked)="selectAll.changeItem($event, item)">
 *    </ugl-checkbox>
 * </div>
 *
 */
export declare class CheckboxColumnDirective<V, T extends CheckboxColumnItem<V>> implements OnInit, AfterViewInit {
    private elementRef;
    private renderer;
    /**
     * HTMLInputElement of parent checkbox
     */
    private parent;
    /**
     * Emitter for check/uncheck of parent checkbox
     */
    checkboxColumnChange: EventEmitter<boolean>;
    /**
     * Array of children items of specified type
     */
    private _items;
    /**
     * Input for children items
     */
    set items(items: Array<T>);
    /**
     * Get children items
     */
    get items(): Array<T>;
    /**
     * @ignore
     */
    constructor(elementRef: ElementRef, renderer: Renderer2);
    /**
     * Set initials configurations
     */
    ngOnInit(): void;
    /**
     * Set configurations after view is initializes
     */
    ngAfterViewInit(): void;
    /**
     * Method on change of item of list.
     * Emitts the new value of item, and call function to change the parent status.
     *
     * @param event true | false
     * @param item class item
     */
    changeItem(event: boolean, item: T): void;
    /**
     * Uncheck all items
     */
    uncheckAll(): void;
    /**
     * Check all items
     */
    checkAll(): void;
    /**
     * Toggle check on parent click
     * @param checked true | false
     */
    private toggleCheck;
    /**
     * Host listener for change selection of parent
     */
    private changeSelection;
    /**
     * Set the status of children, based on parent selection
     */
    private toggleColumnSelection;
    /**
     * On children click, change status of parent element
     */
    private changeColumnSelection;
    /**
     * Count the selected items
     */
    private countItemsSelected;
}