/**
 * ZUI Loading Component
 * Loading indicator for async operations
 */
import { Component } from '../../core/Component';
import type { BaseProps, Rect } from '../../core/types';
export interface LoadingProps extends BaseProps {
    /** Whether loading is visible */
    visible?: boolean;
    /** Loading message */
    message?: string;
    /** Size of the spinner */
    size?: 'small' | 'medium' | 'large';
    /** Color of the spinner */
    color?: string;
    /** Position X */
    x?: number;
    /** Position Y */
    y?: number;
}
/**
 * Loading component with animated spinner
 *
 * Based on ZeppOS design:
 * - Centered on screen by default
 * - Natural circular animation
 * - Optional message text
 *
 * @example
 * ```ts
 * // Basic loading
 * const loading = new Loading({ visible: true });
 *
 * // With message
 * const loading = new Loading({
 *   visible: true,
 *   message: 'Please wait...',
 *   size: 'large',
 * });
 *
 * // Hide loading
 * loading.setVisible(false);
 * ```
 */
export declare class Loading extends Component<LoadingProps> {
    readonly type = "Loading";
    private spinnerWidget;
    private backgroundWidget;
    private messageWidget;
    private animationInterval;
    private currentAngle;
    protected getDefaultProps(): Partial<LoadingProps>;
    protected calculateLayout(parentRect?: Rect): void;
    protected createWidgets(): void;
    protected updateWidgets(): void;
    protected destroyWidgets(): void;
    private startAnimation;
    private stopAnimation;
    /**
     * Set loading visibility
     */
    setVisible(visible: boolean): void;
    /**
     * Set loading message
     */
    setMessage(message: string): void;
    /**
     * Show loading
     */
    show(): void;
    /**
     * Hide loading
     */
    hide(): void;
}
/**
 * Show global loading indicator
 */
export declare function showLoading(props?: Omit<LoadingProps, 'visible'>): Loading;
/**
 * Hide global loading indicator
 */
export declare function hideLoading(): void;
/**
 * Create a Loading component
 */
export declare function createLoading(props: LoadingProps): Loading;
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