/**
 * GraphicFrameXform — handles `xdr:graphicFrame` elements in drawing XML.
 *
 * A graphicFrame is the container for embedded objects such as charts.
 * The OOXML structure:
 *
 *   <xdr:graphicFrame macro="">
 *     <xdr:nvGraphicFramePr>
 *       <xdr:cNvPr id="2" name="Chart 1"/>
 *       <xdr:cNvGraphicFramePr/>
 *     </xdr:nvGraphicFramePr>
 *     <xdr:xfrm>
 *       <a:off x="0" y="0"/>
 *       <a:ext cx="0" cy="0"/>
 *     </xdr:xfrm>
 *     <a:graphic>
 *       <a:graphicData uri="http://schemas.openxmlformats.org/drawingml/2006/chart">
 *         <c:chart xmlns:c="..." xmlns:r="..." r:id="rId1"/>
 *       </a:graphicData>
 *     </a:graphic>
 *   </xdr:graphicFrame>
 */
import { BaseXform } from "../base-xform.js";
export interface GraphicFrameModel {
    /** Drawing object index (1-based unique id within the drawing part) */
    index?: number;
    /** Display name (e.g. "Chart 1") */
    name?: string;
    /** Relationship ID referencing the chart part */
    rId?: string;
    /** The graphic data URI — defaults to chart URI */
    graphicDataUri?: string;
    /** Raw XML for a:extLst inside xdr:cNvPr (round-trip preservation) */
    cNvPrExtLst?: string;
    /** True when the graphic frame references a cx:chart (Office 2016+ extended chart) */
    isChartEx?: boolean;
}
declare class GraphicFrameXform extends BaseXform {
    model: GraphicFrameModel;
    parser: any;
    private _inNvPr;
    private _inGraphicData;
    /** Raw XML capture for a:extLst inside xdr:cNvPr */
    private _extLstCapture;
    get tag(): string;
    prepare(model: GraphicFrameModel, options: {
        index: number;
    }): void;
    render(xmlStream: any, model: GraphicFrameModel): void;
    parseOpen(node: any): boolean;
    parseText(text: string): void;
    parseClose(name: string): boolean;
}
export { GraphicFrameXform };