/**
 * Export-related types for React Modern Gantt
 */
/**
 * Supported export formats
 */
export type ExportFormat = "png" | "jpeg" | "jpg" | "pdf";
/**
 * PDF-specific export options
 */
export interface PdfExportOptions {
    /**
     * Page orientation
     * @default 'landscape'
     */
    orientation?: "portrait" | "landscape";
    /**
     * Page size
     * @default 'a4'
     */
    pageSize?: "a4" | "a3" | "letter" | "legal" | [number, number];
    /**
     * Page margins in mm
     * @default { top: 10, right: 10, bottom: 10, left: 10 }
     */
    margins?: {
        top: number;
        right: number;
        bottom: number;
        left: number;
    };
    /**
     * PDF document title metadata
     */
    title?: string;
    /**
     * PDF document author metadata
     */
    author?: string;
    /**
     * PDF document subject metadata
     */
    subject?: string;
    /**
     * Whether to fit the chart to the page
     * @default true
     */
    fitToPage?: boolean;
}
/**
 * Options for exporting the Gantt chart
 */
export interface ExportOptions {
    /**
     * Export format
     * @default 'png'
     */
    format?: ExportFormat;
    /**
     * Filename without extension
     * @default 'gantt-chart'
     */
    filename?: string;
    /**
     * Image quality for JPEG format (0-1)
     * @default 0.95
     */
    quality?: number;
    /**
     * Scale factor for higher resolution
     * @default 2
     */
    scale?: number;
    /**
     * Background color for the exported image
     * @default '#ffffff'
     */
    backgroundColor?: string;
    /**
     * Padding around the chart in pixels
     * @default 20
     */
    padding?: number;
    /**
     * Whether to include the chart title
     * @default true
     */
    includeTitle?: boolean;
    /**
     * PDF-specific options
     */
    pdfOptions?: PdfExportOptions;
}
/**
 * Result of an export operation
 */
export interface ExportResult {
    /**
     * Whether the export was successful
     */
    success: boolean;
    /**
     * Data URL of the exported content (for images)
     */
    dataUrl?: string;
    /**
     * Blob of the exported content (for PDF)
     */
    blob?: Blob;
    /**
     * Final filename with extension
     */
    filename?: string;
    /**
     * Export format used
     */
    format?: ExportFormat;
    /**
     * Error message if export failed
     */
    error?: string;
}
/**
 * Methods exposed via ref for programmatic control
 */
export interface GanttChartRef {
    /**
     * Export the chart as image or PDF
     */
    exportChart: (options?: ExportOptions) => Promise<ExportResult>;
    /**
     * Get the chart as a data URL (without downloading)
     */
    getDataUrl: (format?: ExportFormat, options?: Omit<ExportOptions, "format" | "filename">) => Promise<string | null>;
    /**
     * Get the chart as a Blob
     */
    getBlob: (format?: ExportFormat, options?: Omit<ExportOptions, "format" | "filename">) => Promise<Blob | null>;
    /**
     * Copy the chart to clipboard as image
     */
    copyToClipboard: (options?: Omit<ExportOptions, "format" | "filename">) => Promise<boolean>;
    /**
     * Get the container element
     */
    getContainerElement: () => HTMLDivElement | null;
    /**
     * Scroll to a specific date
     */
    scrollToDate: (date: Date) => void;
    /**
     * Scroll to show "today" in view
     */
    scrollToToday: () => void;
}