import { OnInit, TemplateRef } from '@angular/core';
import { FuTableComponent } from '../table/table.component';
import { FuFieldType, FuSortDirection } from '../types';
import { FieldPath } from '../helpers';
import * as i0 from "@angular/core";
/**
 * Defines a column for use inside a `fu-table`.
 *
 * A `fu-column` describes how a single field of the row data is displayed,
 * sorted, edited, and configured.
 *
 * Columns can optionally provide custom templates for:
 * - header content
 * - header addon content
 * - data cell rendering
 * - row actions (edit, save, expand, etc.)
 *
 * Example:
 * ```html
 * <fu-table [data]="users">
 *   <fu-column field="name" header="Name" sortable editable />
 *
 *   <fu-column field="age" header="Age">
 *     <ng-template fuColumnCell let-value>
 *       {{ value }} years
 *     </ng-template>
 *   </fu-column>
 * </fu-table>
 * ```
 *
 * ## Visibility
 * The column visibility can be controlled in two ways:
 * - via the `visible` input on the column
 * - via `ColumnConfig` provided to `fu-table`
 *
 * If `ColumnConfig` is provided, it takes precedence over the column's
 * `visible` input.
 */
export declare class FuColumnComponent<T extends object> implements OnInit {
    /** Text displayed in the column header. */
    header: import("@angular/core").InputSignal<string>;
    /**
     * Optional descriptive text shown in the column configuration panel.
     * (drag & drop / visibility settings).
     *
     * Also used as tooltip text for the column header in the table.
     */
    description: import("@angular/core").InputSignal<string>;
    /**
     * Path to the value in the row object used by this column.
     *
     * Supports dot-notation for nested values (e.g. `address.city`).
     */
    field: import("@angular/core").InputSignal<FieldPath<T>>;
    /**
     * Control type used when the column is editable.
     *
     * If not provided, the control type is inferred from the cell value
     * using `typeof` (e.g. `string`, `number`, `boolean`).
     *
     * ⚠️ Note: Date values cannot be reliably inferred from the value.
     *
     * ⚠️ When editing date fields, it is recommended to explicitly set `type="date"`.
     *
     * The control type determines which editor is rendered for the cell.
     */
    type: import("@angular/core").InputSignal<FuFieldType | undefined>;
    /**
     * CSS width of the column (e.g. `120px`, `20%`, `auto`).
     * Defaults to `auto`.
     */
    width: import("@angular/core").InputSignal<string>;
    /**
     * Whether the column can be sorted.
     *
     * When enabled, clicking the column header toggles sort direction.
     *
     * Does not need to be set if `sortField` is provided.
     */
    sortable: import("@angular/core").InputSignalWithTransform<boolean, unknown>;
    /**
     * Optional backend sort key.
     *
     * When provided, this value is emitted in sort queries instead of `field`.
     * Useful when the backend expects enum values, aliases, or different field names.
     *
     * If omitted, `field` is used.
     */
    sortField: import("@angular/core").InputSignal<string | number | null>;
    /**
     * Whether cells in this column can be edited.
     *
     * Editing behavior depends on the configured control type and templates.
     */
    editable: import("@angular/core").InputSignalWithTransform<boolean, unknown>;
    /**
     * Whether the column can be hidden via table configuration UI
     * (e.g. sidebar or column visibility controls).
     */
    hideable: import("@angular/core").InputSignal<boolean>;
    /**
     * Whether the column can be reordered via drag-and-drop
     * or other column reordering mechanisms.
     */
    reorderable: import("@angular/core").InputSignal<boolean>;
    /**
     * Whether the column is searchable for local filtering.
     *
     * When enabled, the table's search functionality includes this column
     * when filtering rows based on the search term.
     */
    searchable: import("@angular/core").InputSignal<boolean>;
    /**
     * Controls whether the column is initially visible.
     *
     * Note:
     * If `ColumnConfig` is provided to `fu-table`, the visibility defined
     * there takes precedence over this value.
     */
    visible: import("@angular/core").ModelSignal<boolean>;
    /**
     * Marks the column as an action column.
     *
     * Action columns typically contain interactive elements such as buttons or links.
     *
     * These columns are excluded from row-level styling (e.g. rowClass, rowStyle).
     *
     * * Defaults to `false`.
     */
    isAction: import("@angular/core").InputSignalWithTransform<boolean, unknown>;
    isSortable: import("@angular/core").Signal<boolean>;
    sortDirection: import("@angular/core").WritableSignal<FuSortDirection>;
    columnCellTemplate: import("@angular/core").Signal<TemplateRef<any> | undefined>;
    columnHeaderAddonTemplate: import("@angular/core").Signal<TemplateRef<any> | undefined>;
    columnHeaderTemplate: import("@angular/core").Signal<TemplateRef<any> | undefined>;
    columnActionsTemplate: import("@angular/core").Signal<TemplateRef<any> | undefined>;
    accessor: (row: T) => any;
    constructor(table: FuTableComponent<T>);
    ngOnInit(): void;
    toggleSort(): void;
    private buildAccessor;
    static ɵfac: i0.ɵɵFactoryDeclaration<FuColumnComponent<any>, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<FuColumnComponent<any>, "fu-column", never, { "header": { "alias": "header"; "required": false; "isSignal": true; }; "description": { "alias": "description"; "required": false; "isSignal": true; }; "field": { "alias": "field"; "required": true; "isSignal": true; }; "type": { "alias": "type"; "required": false; "isSignal": true; }; "width": { "alias": "width"; "required": false; "isSignal": true; }; "sortable": { "alias": "sortable"; "required": false; "isSignal": true; }; "sortField": { "alias": "sortField"; "required": false; "isSignal": true; }; "editable": { "alias": "editable"; "required": false; "isSignal": true; }; "hideable": { "alias": "hideable"; "required": false; "isSignal": true; }; "reorderable": { "alias": "reorderable"; "required": false; "isSignal": true; }; "searchable": { "alias": "searchable"; "required": false; "isSignal": true; }; "visible": { "alias": "visible"; "required": false; "isSignal": true; }; "isAction": { "alias": "isAction"; "required": false; "isSignal": true; }; }, { "visible": "visibleChange"; }, ["columnCellTemplate", "columnHeaderAddonTemplate", "columnHeaderTemplate", "columnActionsTemplate"], never, true, never>;
}