Merge PR #1728: Tables: a table with its own width is not squeezed to the margins (#1721)

crates/layout/src/tests.rs: both sides' appended tests kept.
docs/layout-parity.md: main's table rows kept, #1721 sentence added to the autofit row; both log rows kept.

crates/layout/src/table.rs

@@ -391,7 +391,8 @@ pub fn layout_table(ctx: &mut Ctx, story: StoryRef, t: &Table, path: &[u32], ava
         }
         total = tw;
     }
-    if total > avail * 1.5 && !t.props.fixed {
+    // A table with its own width keeps it, however far it runs past the margins (as in Word).
+    if target.is_none() && total > avail * 1.5 && !t.props.fixed {
         let k = avail / total.max(1.0);
         grid.iter_mut().for_each(|w| *w *= k);
         total = avail;

crates/layout/src/tests.rs

@@ -9780,4 +9780,25 @@ fn early_float_survives_a_column_break_into_another_width() {
         assert!(!want.is_empty(), "second column first: {skip}: text after the break");
         assert_eq!(got, want, "second column first: {skip}: the text after the break wraps around nothing");
     }
+/// A table with its own width keeps it when it is over 1.5 times the text width (#1721); one
+/// without is still squeezed to the margins.
+#[test]
+fn table_with_its_own_width_is_not_squeezed_to_the_margins() {
+    let text = |s: &str| wordcraft_doc::para_block(wordcraft_doc::Paragraph::with_text(s, Default::default()));
+    let second_column_x = |own: Option<f32>| {
+        let mut t = Table::new(1, 3, 936.0);
+        t.props.width = own;
+        t.rows[0].cells[1].blocks = vec![text("Address")];
+        let mut d = Document::from_text("After");
+        d.insert_block(StoryRef::Body, &Path::top(0), wordcraft_doc::Block::Table(t)).unwrap();
+        let l = lay(&d);
+        let [(x, _, _)] = para_at(&l, &[0, 0, 1, 0])[..] else { panic!("second cell missing") };
+        x
+    };
+    // 936pt (twice the 468pt of text) of its own: the columns stay 312pt wide, past the margin.
+    let x = second_column_x(Some(936.0));
+    assert!(x > 72.0 + 300.0, "the second column starts at {x}, squeezed");
+    // The same columns with an automatic table width are squeezed to 156pt each.
+    let x = second_column_x(None);
+    assert!(x < 72.0 + 200.0, "the second column starts at {x}, not squeezed");
 }

docs/layout-parity.md

@@ -59,7 +59,7 @@ Exact line spacing keeps the run font baseline around tall equations; automatic
 | Tables: row border exceptions (`w:tblPrEx/w:tblBorders`) | ✅ | `row_borders_stay_on_row`, `row_nil_overrides_style`: explicit cell borders win; row exceptions precede table styles and table borders | — |
 | Footnotes at the page bottom, endnotes at the end, note numbering | 🟡 | A long note continues onto the next page at a line boundary (its first line stays with the reference), first in that page's note area under a full-width continuation separator (#352); the document's own separator, continuation separator and continuation notice are drawn (the notice under a note that continues); on a page with footnotes a paragraph ending there keeps its space after above the separator, or its last lines go to the next page with the note (#1116); a long endnote continues on the next column or page at a line boundary (#456), and the caret finds note text on its continuation page (#457); each section's note options: footnotes below the text, endnotes at the end of each section, start at, numbering restarted each section or each page (counted from where the notes land, at most three passes) (#385) | 1–2 |
 | Tables: row heights (at least/exact), rows split across pages, header rows repeat, Can't Split | ✅ | 2026-10-06, #138; omitted cell-margin edges inherit current table defaults; every cell in a row gets the row's largest top and bottom margin; an exact height covers the top border, top margin and text, the bottom margin comes on top, and an exact row never splits; a row split across pages keeps its cells' bottom margin, border and last space after on the first page, widow/orphan control applies in its cells, each cell continues at the top of the next page and an at-least row keeps its minimum; an at-least row with less room than its minimum on a page that already holds something starts the next page whole (Allow row to break on or off, vAlign centre too), as observed in Word for Mac 2026-10-15 (a row of about 2.6 cm), #1742; that repeated header rows go with it and that a row taller than a page splits from the top of the next page come from the issue and synthetic tests, not a Word check (`…_an_at_least_row_with_no_room_starts_the_next_page_whole_either_way_breaking_is_set`, `…_an_at_least_row_taller_than_a_page_splits_from_the_top_of_the_next_page`, `layout::tests::a_row_shares_its_largest_top_and_bottom_margins`, `…_a_split_row_keeps_its_bottom_margin_and_widow_control`, `…_split_row_cells_each_continue_at_the_top`) | — |
-| Tables: autofit to contents/window, fixed widths, Word 2013 edge | 🟡 | #137; #44: AutoFit Contents measures each column's narrowest and widest text and shares the width like Word, once (not live as you type); consistent a percentage width past 100% is kept, as Word does; cell widths override stale grid proportions when their totals agree (`cell_widths_override_grid`); conflicting widths and spans still differ | 3–5 |
+| Tables: autofit to contents/window, fixed widths, Word 2013 edge | 🟡 | #137; #44: AutoFit Contents measures each column's narrowest and widest text and shares the width like Word, once (not live as you type); consistent a percentage width past 100% is kept, as Word does; a table with its own preferred width keeps it, however far past the margin, and only an automatic-width table over 1.5× the text width is squeezed to the margins (Word squeezes it as soon as it is wider) (#1721); cell widths override stale grid proportions when their totals agree (`cell_widths_override_grid`); conflicting widths and spans still differ | 3–5 |
 | Floating tables (`w:tblpPr`) | 🟡 | #137; one placed on the page or margin that would cover visible text before it and does not fit below it moves to the next page (#534); empty line-break lines do not count as text; other overlap rules untested | 2–3 |
 | Nested tables | 🟡 | render; polish missing | 2–4 |
 | Floating pictures/shapes placement (relative to page/margin/column/paragraph/line/character) | ✅ | #136; in a header or footer table cell, a float not laid out in its cell (`layoutInCell="0"`, VML `o:allowincell="f"`, or any VML shape in a header or footer: user-checked in Word for Mac) and placed relative to the page or margins is placed on the page, drawn with the header behind or in front of its text, on every page: Word's picture watermark in a header that starts with a table is centred behind the body text (#1775, `layout::tests::header_cell_float_placed_on_the_page`). Other cell floats are still placed relative to their cell | — |
@@ -287,6 +287,7 @@ Page-relative footer tables keep their physical wrap bounds without adding to fo
 | 2026-10-13 | trivial | A paragraph ending with a page break keeps its space after on the old page with its mark: the next page starts with the next paragraph at the top (it started that much too low, and a page break before after it opened a blank page) |
 | 2026-10-13 | trivial | Table rows: every cell gets the row's largest top and bottom margin; exact rows add the bottom margin on top and never split; a split row keeps its cells' bottom margin, border and space after on the first page, applies widow control in its cells and continues each cell at the top of the next page |
 | 2026-10-14 | trivial | A paragraph continued into the next column or page is broken again around the shapes there, not the ones where it started (#1374) |
+| 2026-10-14 | trivial | A table with its own preferred width keeps it past the margin instead of being squeezed to the margins when over 1.5× the text width (#1721) |
 | 2026-10-13 | trivial | PAGE fields after a page break inside their paragraph, or on a page the paragraph runs onto, show that page's number (#1352) |
 | 2026-10-14 | trivial | Colour emoji row set to 🟡: CBDT verified on Noto Color Emoji; COLR v0/v1 and sbix not yet seen on a real font (#1269) |
 | 2026-10-14 | trivial | Colour emoji and colour-font glyphs (COLR, sbix, CBDT) drawn on screen and in page renders (#1269) |