Function getSelectedRanges

getSelectedRanges(
    selA: SelectionPoint,
    selB: SelectionPoint,
    getText: (pageNumber: number) => PdfPageText | null,
): { end: number; pageText: PdfPageText; start: number }[]
Expand a selection spanning multiple pages into per-page ranges (used for highlight painting and text extraction).

getText resolves loaded page texts by 1-based page number; unloaded pages between the endpoints are skipped.
Parameters
- selA: SelectionPoint
  The selA value (SelectionPoint).
- selB: SelectionPoint
  The selB value (SelectionPoint).
- getText: (pageNumber: number) => PdfPageText | null
  The getText value.
Returns { end: number; pageText: PdfPageText; start: number }[]
The resolved [].
- Defined in packages/viewer-core/src/selection.ts:279