import { InteractionEvent } from "pixi.js";
import { DBasePaddingAdjustable } from "./d-base-padding-adjustable";
import { DImageBase, DImageBaseEvents, DImageBaseOptions, DThemeImageBase } from "./d-image-base";
import { DOnOptions } from "./d-on-options";
import { DTreeData } from "./d-tree-data";
import { DTreeItem } from "./d-tree-item";
import { DTreeNode } from "./d-tree-node";
/**
 * {@link DTreeItemText} events.
 */
export interface DTreeItemTextEvents<NODE, EMITTER> extends DImageBaseEvents<NODE, EMITTER> {
    /**
     * Triggered when a node is set.
     *
     * @param node a node
     * @param index an index number of a node
     * @param emitter an emitter
     */
    set(node: NODE, index: number, emitter: EMITTER): void;
    /**
     * Triggered when set to undefined.
     *
     * @param emitter an emitter
     */
    unset(emitter: EMITTER): void;
}
/**
 * {@link DTreeItemText} "on" options.
 */
export interface DTreeItemTextOnOptions<NODE, EMITTER> extends Partial<DTreeItemTextEvents<NODE, EMITTER>>, DOnOptions {
}
/**
 * {@link DTreeItemText} options.
 */
export interface DTreeItemTextOptions<NODE extends DTreeNode = DTreeNode, THEME extends DThemeTreeItemText = DThemeTreeItemText, EMITTER = any> extends DImageBaseOptions<string, THEME> {
    on?: DTreeItemTextOnOptions<NODE, EMITTER>;
}
export interface DThemeTreeItemText extends DThemeImageBase<string> {
    getLevelPadding(level: number): number;
}
export declare class DTreeItemText<NODE extends DTreeNode = DTreeNode, THEME extends DThemeTreeItemText = DThemeTreeItemText, OPTIONS extends DTreeItemTextOptions<NODE, THEME> = DTreeItemTextOptions<NODE, THEME>> extends DImageBase<string, THEME, OPTIONS> implements DTreeItem<NODE> {
    protected _padding: DBasePaddingAdjustable;
    protected _data: DTreeData<NODE>;
    protected _node?: NODE;
    protected _index?: number;
    constructor(data: DTreeData<NODE>, options?: OPTIONS);
    protected newPadding(theme: THEME, options?: OPTIONS, callback?: () => void): DBasePaddingAdjustable;
    get node(): NODE | undefined;
    get value(): NODE | undefined;
    get index(): number | undefined;
    get data(): DTreeData<NODE>;
    toggle(): void;
    set(node: NODE, index: number, forcibly?: boolean): void;
    unset(): void;
    protected onSelect(e: InteractionEvent | KeyboardEvent | MouseEvent | TouchEvent | undefined, value: NODE): void;
    protected onKeyDown(e: KeyboardEvent): boolean;
    protected onKeyDownActivate(e: KeyboardEvent): boolean;
    protected getType(): string;
}