/// <reference path="../../pxtlib.d.ts" />
import * as Blockly from "blockly";
import { FieldCustom, FieldCustomOptions } from "./field_utils";
import { FieldColour } from "@blockly/field-colour";
/**
     * The value modes:
     *     hex - Outputs an HTML color string: "#ffffff" (with quotes)
     *     rgb - Outputs an RGB number in hex: 0xffffff
     *     index - Outputs the index of the color in the list of colors: 0
     */
export declare type FieldColourValueMode = "hex" | "rgb" | "index";
export interface FieldColourNumberOptions extends FieldCustomOptions {
    colours?: string;
    columns?: string;
    className?: string;
    valueMode?: FieldColourValueMode;
}
export declare class FieldColorNumber extends FieldColour implements FieldCustom {
    isFieldCustom_: boolean;
    protected colour_: string;
    private valueMode_;
    protected colours_: string[];
    constructor(text: string, params: FieldColourNumberOptions, opt_validator?: Blockly.FieldValidator);
    setColours(colours: string[], titles?: string[]): FieldColour;
    doClassValidation_(colour: string): string;
    /**
     * Return the current colour.
     * @param {boolean} opt_asHex optional field if the returned value should be a hex
     * @return {string} Current colour in '#rrggbb' format.
     */
    getValue(opt_asHex?: boolean): string;
    /**
     * Set the colour.
     * @param {string} colour The new colour in '#rrggbb' format.
     */
    doValueUpdate_(colour: string): void;
    getColours_(): string[];
    applyColour(): void;
}