import { TextAlign } from '../../formatter';
import { TemplateElement, LoopElement, ConditionElement, BorderElement, TableElement, ReceiptData, LabelData } from '../TemplateEngine';
/**
 * Template Renderer class
 * Renders template elements to ESC/POS commands
 */
export declare class TemplateRenderer {
    private readonly logger;
    private readonly formatter;
    private readonly barcodeGenerator;
    private readonly driver;
    private readonly parser;
    private readonly paperWidth;
    /** Default paper width in characters (58mm paper ≈ 48 chars) */
    private static readonly DEFAULT_PAPER_WIDTH;
    constructor(paperWidth?: number);
    /**
     * Render a receipt template
     */
    renderReceipt(data: ReceiptData): Uint8Array;
    /**
     * Render a label template
     */
    renderLabel(data: LabelData): Uint8Array;
    /**
     * Render a custom template
     */
    render(template: import('../TemplateEngine').TemplateDefinition, data: Record<string, unknown>): Uint8Array;
    /**
     * Render a single template element
     */
    renderElement(element: TemplateElement, data: Record<string, unknown>): Uint8Array[];
    /**
     * Render a loop element
     */
    renderLoop(loop: LoopElement, data: Record<string, unknown>): Uint8Array[];
    /**
     * Render a condition element
     */
    renderCondition(condition: ConditionElement, data: Record<string, unknown>): Uint8Array[];
    /**
     * Evaluate a condition
     */
    evaluateCondition(value: unknown, operator: ConditionElement['operator'], compareValue?: unknown): boolean;
    /**
     * Render a border element
     */
    renderBorder(border: BorderElement): Uint8Array[];
    /**
     * Render multiple fill lines with the same pattern
     */
    private renderFillLines;
    /**
     * Build a separator line for a table
     */
    private buildTableSeparatorLine;
    /**
     * Push a text line followed by a line feed into the commands array.
     */
    private pushTextLine;
    /**
     * Render a table element
     */
    renderTable(table: TableElement, data: Record<string, unknown>): Uint8Array[];
    /**
     * Align text within a specified width
     */
    alignText(text: string, width: number, align: TextAlign): string;
    /**
     * Render standard elements (text, line, image, qrcode, barcode, feed, variable)
     */
    renderStandardElement(element: Exclude<TemplateElement, LoopElement | ConditionElement | BorderElement | TableElement>, data: Record<string, unknown>): Uint8Array[];
    /**
     * Render a separator line
     */
    renderLine(char?: string, length?: number): Uint8Array[];
    /**
     * Format an item line with columns
     */
    formatItemLine(name: string, qty: string, amount: string): string;
    /**
     * Combine multiple command arrays into one
     */
    combineCommands(commands: Uint8Array[]): Uint8Array;
}