import 'colors';
import { Exam } from './core/exam_components';
export type ExamPreviewOptions = {
    frontend_js_path: string;
    frontend_assets_dir: string;
    custom_css?: string;
};
export type ExamPreviewSpecification = Partial<ExamPreviewOptions>;
export declare class ExamPreview {
    readonly exam: Exam;
    private options;
    private onStatus?;
    constructor(exam: Exam, options?: Partial<ExamPreviewOptions>, onStatus?: (status: string) => void);
    private writeAssets;
    renderPreview(): string;
    private renderBody;
    private renderNav;
    private renderSectionOrChooserNav;
    private renderSectionNav;
    private renderSectionChooserNav;
    private renderQuestionOrChooserNav;
    private renderQuestionNav;
    private renderQuestionChooserNav;
    private renderChooserNavHeader;
    private renderSkinOrChooserNavIcon;
    private renderSkinIcon;
    private renderSkinChooserNavIcon;
    private renderMinMaxPointsBadge;
    private renderHeader;
    private renderSections;
    private renderSectionOrChooser;
    private renderSection;
    private renderSectionHeader;
    private renderSectionHeaderSkin;
    private renderSectionHeaderSkinPicker;
    private renderSectionChooser;
    private renderQuestionOrChooser;
    private renderQuestion;
    private renderQuestionHeader;
    private renderQuestionHeaderSkin;
    private renderQuestionHeaderSkinPicker;
    private renderQuestionContent;
    private renderQuestionChooser;
    writeAll(previewDir?: string): void;
}