- Model: SectionProps.text_direction (horizontal, tbRl, btLr); unknown
values read as horizontal.
- DOCX: w:textDirection in w:sectPr read and written in CT_SectPr order
(after w:titlePg, before w:bidi), also inside w:sectPrChange.
- Layout: a vertical section is laid out on its page turned on its side
(margins, page borders and columns turned with it) and each page is
turned onto the real page: tbRl lines run top to bottom stacking from
the right, btLr bottom to top from the left. Pictures, shapes and text
boxes stay upright; headers and footers stay horizontal; a section
turning the other way starts a new page.
- Display: in top-to-bottom text ideographs, kana, Hangul and full-width
forms stand upright (ideographic comma/full stop moved to the upper
right); Latin lies on its side. Raster and PDF draw it unchanged.
- Hit testing: clicks outside turned lines find the nearest turned line.
- Command layout.textDirection (Layout › Page Setup › Text Direction):
turns the selected cells or the text box the caret is in, else the
section; ribbon menu and keytip.
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Co-authored-by: Brandon Thomas <echelon@gmail.com>
