import { Texture } from './Texture';
export declare class TextureGenerator {
    private _cache;
    fontProps: {
        fontSize: number;
        fontName: string;
    };
    folderPath: string;
    osbFolderPath: string;
    /**
     *
     * @param folderPath full path to the folder that will be used to save generated text images.
     * @param osbFolderPath relative path to the folder that will be used to save generated text images. For example: `sb/lyrics`
     * @param fontProps font properties for the generated text images.
     */
    constructor(folderPath: string, osbFolderPath: string, fontProps?: {
        fontSize?: number;
        fontName?: string;
    });
    /** alias for node-canvas' `registerFont` */
    registerFont(fontPath: string, family: string, weight?: string, style?: string): void;
    /**
     * Generate and save text image.
     * Returns a Texture that contains info about the width, height and osb path of the generated image.
     * @param text Text to be rendered.
     * @param color Text color.
     * @param offset Offset will be 0 on each side if not set.
     * @param withBoundingBox Whether bounding box should be included in the calculation or not.
     * If you are creating any sorts of per character effect then this should be true
     * and the Origin should be set to TopLeft, TopCenter or TopRight depends on your need
     * so that the text can be aligned properly.
     * However if you just wanna generate a whole line of text then just leave it as false
     * so your texture doesn't have extra unncessary paddings.
     */
    generateTexture(text: string, color?: {
        r?: number;
        g?: number;
        b?: number;
    }, offset?: {
        left?: number;
        right?: number;
        top?: number;
        bottom?: number;
    }, withBoundingBox?: boolean): Texture;
    private _getTexture;
    /** alias for fs-extra' `emptyDirSync` */
    emptyDir(): void;
    /**
     * Return text dimensions without caching it.
     * @param text text to be measured
     * @param offset offset will be 0 on each side if not set.
     * @param withBoundingBox Whether bounding box should be included in the calculation or not.
     * If you are creating any sorts of per character effect then this should be true
     * and the Origin should be set to TopLeft, TopCenter or TopRight depends on your need
     * so that the text can be aligned properly.
     */
    getTextDimensions(text: string, offset?: {
        left?: number;
        right?: number;
        top?: number;
        bottom?: number;
    }, withBoundingBox?: boolean): {
        width: number;
        height: number;
    };
    private _measureText;
    private _saveTexture;
}