On a page with /Rotate 90, 180 or 270, Fill & Sign placed typed and drawn
signatures and initials sideways or upside down: their box and their
strokes/outlines were laid out along user-space axes, which the page turns,
while the click (or fill_sign_add's "at") is a displayed point. Only image
signatures were counter-rotated (#485).
Both now use the same displayed axes as image signatures
(pdfcraft_model::view_matrix_for without its offset): the box's left edge and
vertical centre are at the displayed point, a drawn signature's ink points are
mapped through the displayed right/up vectors, and a typed signature's
normalised outlines are turned back inside a user-space box laid out along the
turned page (the shared signature_image::upright_box, now also used by
SignatureImage::rect). The appearance is plain geometry, so every viewer shows
it upright without relying on a form /Matrix. Unturned pages are unchanged
(the mapping is the identity there).
typed_signature_shape and fill_sign::{signature_at, typed_signature_at} take
the page rotation; fill_sign::place and fill_sign_add pass it.
Tests: a kittest-file test places a drawn, typed signature and typed initials
on /Rotate 0/90/180/270 pages through fill_sign::place, renders them and checks
each displayed ink box is wider than tall, anchored at the point, identical to
the unturned page, and that an asymmetric drawn stroke is not mirrored; an
automation test does the same for fill_sign_add typed signatures and initials,
before and after save/reopen.
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
5ddf33ccf5