/**
 * ZUI Stepper Component
 * Value stepper with increment/decrement buttons
 */
import { Component } from '../../core/Component';
import type { BaseProps, Rect, EventCallback } from '../../core/types';
export interface StepperProps extends BaseProps {
    /** Current value */
    value: number;
    /** Minimum value (for numeric mode) */
    min?: number;
    /** Maximum value (for numeric mode) */
    max?: number;
    /** Step increment (for numeric mode) */
    step?: number;
    /** List of allowed values (for options mode) */
    options?: number[];
    /** Unit label (e.g., 'min', 'sec') */
    unit?: string;
    /** Disabled state */
    disabled?: boolean;
    /** Change event handler */
    onChange?: EventCallback<number>;
    /** Position X */
    x?: number;
    /** Position Y */
    y?: number;
    /** Button size */
    buttonSize?: number;
    /** Button color */
    buttonColor?: string;
    /** Value display width */
    valueWidth?: number;
}
/**
 * Stepper component for incrementing/decrementing values
 *
 * Supports two modes:
 * - Numeric mode: Uses min/max/step
 * - Options mode: Uses predefined options array
 *
 * @example
 * ```ts
 * // Numeric stepper (1-10)
 * const stepper = new Stepper({
 *   value: 5,
 *   min: 1,
 *   max: 10,
 *   step: 1,
 *   unit: 'min',
 *   onChange: (value) => console.log('New value:', value),
 * });
 *
 * // Options stepper
 * const optionStepper = new Stepper({
 *   value: 5,
 *   options: [5, 10, 15, 20, 25, 30],
 *   unit: 'min',
 *   onChange: (value) => console.log('Selected:', value),
 * });
 * ```
 */
export declare class Stepper extends Component<StepperProps> {
    readonly type = "Stepper";
    private minusButtonBg;
    private minusButtonText;
    private plusButtonBg;
    private plusButtonText;
    private valueText;
    private isMinusPressed;
    private isPlusPressed;
    protected getDefaultProps(): Partial<StepperProps>;
    protected calculateLayout(parentRect?: Rect): void;
    protected createWidgets(): void;
    protected updateWidgets(): void;
    protected destroyWidgets(): void;
    private formatValue;
    private getNextValue;
    private handleMinusDown;
    private handleMinusUp;
    private handlePlusDown;
    private handlePlusUp;
    /**
     * Get current value
     */
    getValue(): number;
    /**
     * Set value programmatically
     */
    setValue(value: number): void;
    /**
     * Set disabled state
     */
    setDisabled(disabled: boolean): void;
    /**
     * Check if at minimum value
     */
    isAtMin(): boolean;
    /**
     * Check if at maximum value
     */
    isAtMax(): boolean;
}
/**
 * Create a Stepper component
 */
export declare function createStepper(props: StepperProps): Stepper;
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