import { mat3 } from 'gl-matrix';
import { WebGLManager } from './WebGLManager.js';
import { FlameNode } from './FlameDataProcessor.js';
/**
 * Handles all text rendering for the flame graph
 *
 * Core principles:
 * - Text rendered in screen space coordinates (fixed size)
 * - Text anchored to left edge of frames with padding
 * - Text does not scale with horizontal zoom
 */
export declare class TextRenderer {
    #private;
    constructor(webgl: WebGLManager);
    /**
     * Set the font family and recreate text atlas
     */
    setFontFamily(fontFamily: string): void;
    /**
     * Set the text color and recreate text atlas
     */
    setTextColor(color: string): void;
    /**
     * Set shadow opacity for text rendering
     */
    setShadowOpacity(opacity: number): void;
    /**
     * Create a texture atlas containing all printable ASCII characters
     */
    createTextAtlas(): void;
    /**
     * Render text for all visible frames in screen space coordinates
     */
    renderText(frames: Array<{
        node: FlameNode;
        x1: number;
        x2: number;
        y1: number;
        y2: number;
    }>, matrix: mat3, viewportWidth: number, viewportHeight: number, frameOpacities: Map<string, number>, framePadding: number | undefined, camera: {
        x: number;
        y: number;
        scale: number;
    }): void;
    /**
     * Format frame text with filename and line number if available
     */
    formatFrameText(node: FlameNode): string;
    /**
     * Truncate text to fit within the given pixel width
     */
    truncateText(text: string, maxWidth: number): string;
    /**
     * Destroy the text renderer and clean up resources
     */
    destroy(): void;
}
//# sourceMappingURL=TextRenderer.d.ts.map