/**
 * Simple Background System
 *
 * Implements IBackgroundSystem for static backgrounds (solid colors and gradients).
 * No animation - just renders a static background.
 */
import type { AccessibilitySettings } from "../../../core/domain/types.js";
import type { Dimensions, QualityLevel } from "../../../core/domain/types.js";
import type { IBackgroundSystem } from "../../../core/contracts/IBackgroundSystem.js";
export interface SimpleBackgroundConfig {
    type: "solid" | "gradient";
    color?: string;
    colors?: string[];
    direction?: number;
}
export declare class SimpleBackgroundSystem implements IBackgroundSystem {
    private config;
    constructor(config: SimpleBackgroundConfig);
    /**
     * Initialize the background system (no-op for simple backgrounds)
     */
    initialize(_dimensions: Dimensions, _quality: QualityLevel): void;
    /**
     * Update the background system (no-op for simple backgrounds)
     */
    update(_dimensions: Dimensions, _frameMultiplier?: number): void;
    /**
     * Draw the background to the canvas
     */
    draw(ctx: CanvasRenderingContext2D, dimensions: Dimensions): void;
    /**
     * Draw a solid color background
     */
    private drawSolidColor;
    /**
     * Draw a linear gradient background
     */
    private drawGradient;
    /**
     * Set the quality level (no-op for simple backgrounds)
     */
    setQuality(_quality: QualityLevel): void;
    /**
     * Clean up resources (no-op for simple backgrounds)
     */
    cleanup(): void;
    /**
     * Handle resize events (no-op for simple backgrounds)
     */
    handleResize?(_oldDimensions: Dimensions, _newDimensions: Dimensions): void;
    /**
     * Set accessibility settings (no-op for simple backgrounds)
     */
    setAccessibility?(_settings: AccessibilitySettings): void;
    /**
     * Update the background configuration
     */
    updateConfig(config: Partial<SimpleBackgroundConfig>): void;
}
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