import type { Dimensions } from "../../../core/domain/types.js";
import type { AccessibilitySettings } from "../../../core/domain/types.js";
import type { RainbowBand } from "../domain/models/rainbow-models.js";
/**
 * RainbowGradientSystem - Renders flowing rainbow wave bands
 *
 * Creates horizontal color bands that flow with sine wave animation,
 * creating a fabric-like flowing rainbow effect.
 */
export declare class RainbowGradientSystem {
    private bands;
    private animationTime;
    /**
     * Initialize bands with given colors
     */
    initialize(colors: string[], brightColors: string[], bandCount: number): void;
    /**
     * Update animation state
     */
    update(accessibility: AccessibilitySettings, frameMultiplier: number): void;
    /**
     * Draw wave bands
     */
    draw(ctx: CanvasRenderingContext2D, dimensions: Dimensions): void;
    /**
     * Draw a single wave band with gradient falloff
     */
    private drawWaveBand;
    /**
     * Calculate Y position with wave effect
     */
    private getWaveY;
    /**
     * Add alpha to hex color
     */
    private addAlpha;
    private hexToRgb;
    /**
     * Get current bands for stats
     */
    getBands(): RainbowBand[];
    /**
     * Update palette colors
     */
    updateColors(colors: string[], brightColors: string[]): void;
    /**
     * Cleanup
     */
    cleanup(): void;
}
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