import { Type, EventEmitter } from '@angular/core';
import '../../../utils/object-extensions';
import { DataGridHeaderModel } from './datagridheader.model';
/**
 * Sort direction, controlled by simple string comparision or a callback.
 */
export declare enum Direction {
    Ascending = 0,
    Descending = 1
}
/**
 * The controlling class for Grid applications.
 *
 * This class takes an array of elements and handles:
 * - visible headers, managed by @Hidden() decorator
 * - create header titles, managed by @Display() decorator
 * - sorting
 * - filtering
 * - count total rows
 * - paging
 */
export declare class DataGridModel<T> {
    /**
     * Returns the number of rows regardless the actual filter (the total).
     */
    get totalRows(): number;
    get totalFilteredRows(): number;
    private get currentRowStart();
    private get currentRowEnd();
    get startRow(): number;
    get maxPageIndex(): number;
    set items(value: T[]);
    get items(): T[];
    get itemsFiltered(): T[];
    get itemsOnCurrentPage(): T[];
    /**
     * Get all headers (column names) and their properties.
     */
    get headers(): DataGridHeaderModel[];
    /**
     * Returns the columns currently not shown. {@link addColumn and @see removeColumn for more}information.
     */
    get headersNotVisible(): DataGridHeaderModel[];
    /**
     * The search value filters the rows. Provide the property name and the filter instruction. Search is pure client.
     */
    searchValue: {
        [prop: string]: any;
    };
    currentPageIndex: number;
    pageSize: number;
    /**
     * Event fired if user clicks Edit button.
     */
    onEdit: EventEmitter<T>;
    /**
     * Event fired if user clicks Delete button.
     */
    onDelete: EventEmitter<T>;
    /**
     * Current sort direction per column.
     */
    sortDirection: {
        [column: string]: Direction;
    };
    private _items;
    private _headers;
    constructor(items: T[], type: Type<T>, pageSize?: number);
    /**
     * Simple sort fucntion that makes a array sort call for the specified column.
     * @param colName The column which has to be sorted after.
     * // tslint:disable-next-line:max-line-length
     * @param dir The order, descended is *desc*, any other string is ascending.
     *            If nothing is provided, the direction toggles. Initital value is *ascending*.
     */
    sortColumn(colName: string, dir: Direction, sortCallback?: (a: any, b: any) => 1 | -1 | 0): void;
    /**
     * Make a column invisible. This is just changing the render process, the column is still
     * in the headers collection and can be made visible again by calling {@link addColumn}later.
     */
    removeColumn(colname: string): void;
    /**
     * Add a column to the current grid, that has been removed recently.
     * It's just adding columns that already exists in the headers collection.
     * If the column name provided does not exists, the method does nothing.
     */
    addColumn(colname: string): void;
    /**
     * Called by infrastructure to inform caller of edit wish
     * @param item The item to edit
     */
    editItem(item: T): void;
    /**
     * Called by infrastructure to inform caller of delete wish
     * @param item The item to delete
     */
    deleteItem(item: T): void;
    private createHeadersForType;
}