import { PptxElement, PptxSlide } from 'pptx-viewer-core';
import { CanvasSize, ShapePresetType } from 'pptx-viewer-shared';
/**
 * Element insertion for the Svelte editor.
 *
 * The element *factories* (`newTextElement`, `newShapeElement`,
 * `newTableElement`) are the shared, framework-agnostic builders from
 * `pptx-viewer-shared` (`render/editor-insert`); every binding uses the same
 * ones so a "Text box" or "Rectangle" is identical across React/Vue/Angular/
 * Svelte. This module adds only the two thin, binding-local pieces the shared
 * factories deliberately leave out: id generation (the factories return
 * `id: ''`) and the pure "append to the current slide" mutation.
 */
export { newShapeElement, newTableElement, newTextElement } from 'pptx-viewer-shared';
/** Generate a fresh, collision-resistant element id (prefixed for clarity). */
export declare function newElementId(): string;
/**
 * Build an `image` element from a data URL (the file picker reads a chosen
 * file as a `data:` URI, which the renderer consumes directly via `imageData`).
 */
export declare function newImageElement(imageData: string, x: number, y: number, width: number, height: number): PptxElement;
/**
 * Build a `shape` element for any preset in the shared shape catalogue
 * (`SHAPE_PRESET_DEFS`, 30 presets). The shared `newShapeElement` factory
 * only covers `'rect' | 'ellipse' | 'line'`; core's `shapeType` field is a
 * plain string with no such restriction, so this widens it for the Insert
 * tab's shape gallery without touching the shared factory's narrow contract.
 */
export declare function newPresetShapeElement(shapeType: ShapePresetType, x?: number, y?: number): PptxElement;
/**
 * Centre an element's box on the slide canvas (top-left clamped to >= 0).
 * Used by the "structured" Insert actions (chart / equation / SmartArt /
 * media / action button / field) so a freshly-inserted diagram or media
 * clip lands in the middle of the slide rather than stacking at a fixed
 * corner offset.
 */
export declare function centerOnCanvas(el: PptxElement, canvasSize: CanvasSize): void;
/** Append `element` to the given slide's element list (immutable). */
export declare function appendElement(slides: readonly PptxSlide[], slideIndex: number, element: PptxElement): PptxSlide[];
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