Preserve notes and handout master export, visible text and native parallel
compression while propagating shared font errors through each export path.
Keep the dependency check accurate for native and WASM feature resolution.
PR #708.
anchorCtr's centreing offset was computed for a block that starts at
the box's left edge and then added to lines that alignment had already
placed within the box. For a right-aligned line the two shifts
stacked: the line ended up starting at the box's centre and ran past
the right edge - on the tdf165341 fixture the sentence was cut off at
"...paragraph rig". The clamp at zero made it worse for content wider
than the box: all the overflow went to the right only.
The origin is now set so the drawn text block's own centre (min/max of
the laid-out line extents) lands on the box's centre: every alignment
stays inside the box when it fits, and overflow centres symmetrically
past both edges, as PowerPoint draws it. Empty lines carry no ink and
stay out of the block; vertical text and multi-column bodies are
unchanged (centring is unimplemented for them, as before).
Tests: right/left-aligned, trailing empty paragraph, mixed alignment,
symmetric overflow, and a no-anchorCtr control - the block's centre
equals the box's centre in every case.
Reported with a public LibreOffice test fixture (tdf165341.pptx);
verified by rendering the slide before (text cut at the right edge)
and after (whole sentence centred).
Conflicts resolved onto main's newer shape, and the PR's policy applied to
every alloc_id/add_media/new_slide call site main has grown since: commands
answer bad(cmd, NO_ID_SPACE) (slide.reuse, insert.zoom, SmartArt, photo
album, review.accept, handout/notes masters, master placeholders,
background/artistic/compress pictures, transition sound, ink to shape,
paste special, file.new templates); reid/bring_media/renumber/regenerate
and compare::adopt/accept are fallible; outline import keeps what fit.
Tests use expect() on the now-Option results.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Currency and percent signs in right-to-left runs looked ahead through the
whole ET run for every sign, and each neutral span searched both ways for
the nearest strong direction. Both are now precomputed or carried along, so
a long run of signs or many short neutral spans cost linear work. The old
code stays in the tests as a reference and 4000 random paragraphs match it.
Co-authored-by: Cursor <cursoragent@cursor.com>
alloc_id bumped next_id with saturating_add: a presentation whose
next_id reached u32::MAX (a hostile file can arrive that way;
fix_next_id imports it) handed out that same id to every new slide,
shape, layout and media - duplicate ids, ambiguous references, silent
corruption on every later insert.
alloc_id now returns Option<u32> via checked_add, and every caller
refuses: the engine's insert/duplicate/media/layout commands answer
with a clear error naming the command, paste and duplicate re-id
helpers propagate it, media addition is fallible, and a fresh slide is
Option. The pptx export's synthesized blank layout is guarded the same
way. Loading keeps such a deck viewable: repair re-ids duplicate
slides while it can, and a duplicate it cannot re-id stays as it is -
growth is refused, and only that duplicate keeps its ambiguous id.
Renumbering the loaded graph was rejected: it needs the
cross-document reference remapping that issue #406 tracks.
Tests: model exhaustion (alloc_id None, fresh media refused, a new
slide refused), engine (slide.new, shape.insert, slide.duplicate and
edit.duplicate all refuse; the document holds no duplicate ids),
format repair (an unre-id-able duplicate stays visible).
"Z̴̡̛͓a̸̧̘l̵̩g̶̞o̸̤" in an Aptos run drew its marks as missing-glyph boxes: no face in the chain
covered the whole cluster and the fallback for its base letter neither, so the run's own font was
kept. PowerPoint draws the marks stacked. A loaded plain face that covers the whole cluster is
now taken before falling back to the run's font. w09-scripts s1 8.40 -> 7.86.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Observed on PowerPoint's export (w14-xml s12):
- a two-column body with rtlCol="1" starts its first column on the right; DeckCraft read and
saved the attribute but laid columns out left to right;
- anchor="just" and anchor="dist" place the text at the bottom of the box, like anchor="b";
DeckCraft drew them at the top;
- wordArtVertRtl stacks characters like wordArtVert but runs its lines from right to left; it was
read as wordArtVert (and saved back as it). It is now its own TextDir, kept on save.
w14-xml s12 9.47 -> 5.39.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
The strikethrough was drawn 0.3 em above the baseline, 0.05 em thick, for every font. PowerPoint
uses the font's own strikeout metrics (OS/2): Arial 96 pt strikes rows 347-351, 24.8 px above the
baseline (530/2048 em) and 4.8 px thick; DeckCraft drew 343-347. Faces now carry their strikeout
metrics (0.26/0.05 em when a font has none) and the line matches PowerPoint's rows exactly.
w14-xml s11 4.06 -> 3.24.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
A wider probe (Arial, Aptos, Calibri, Segoe UI, Times New Roman, Verdana at 40 pt, each box with
one paragraph spaced 2 pt) shows the earlier rule holds for Arial alone: Calibri, Segoe UI and
Times New Roman keep "AVATAR" kerned beside and inside spaced runs (121 vs 131 px for Calibri).
The rule made spaced Aptos and Calibri text too wide (w15-mixed s9 5.46 -> 7.86), so it is
removed; Arial's behaviour stays a known difference.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Line height and baseline were the largest over every face on the line, fallback faces included,
so a line with an emoji, a math symbol or Thai in an Aptos run sat 1-5 px lower than PowerPoint's
and pushed the lines below it down. PowerPoint keeps the run's own font metrics (measured: the
second line of six boxes starts at the same height whatever the first line holds). Faces that are
the run's Latin, East Asian, complex-script or symbol font still count.
w14-xml s8 (baselines) 5.54 -> 3.21, w09-scripts s1 10.27 -> 8.39, s2 9.37 -> 7.46,
w15-mixed s8 13.65 -> 8.77; w15-mixed s2 (Arabic) 6.57 -> 7.05.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Observed on PowerPoint's export of pictographs in Aptos, Arial and Segoe UI:
- characters that default to emoji presentation draw in colour without a selector: ⭐✅☔⌚⏩
and the other BMP Emoji_Presentation characters (DeckCraft only knew the supplementary-plane
ones and drew ⭐✅ as text);
- text-presentation pictographs (⚠ ♥ ✔ ☎ ⬆ ➡ ▶ ⤴) draw as text even where the colour font is the
first installed font that has them: they now come from a plain symbol font, symbol families
first, never the colour one; and a symbol after an emoji no longer inherits its colour face;
- keycap sequences ("1️⃣", "#⃣") draw as text, an outlined key, not the colour keycap.
w14-xml s7 (pictographs) 9.79 -> 6.16, w09-scripts s1 (emoji) 11.56 -> 10.27.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
mongolianVert was read as vert (and saved back as vert). PowerPoint turns it like vert but runs
its lines from left to right, the anchor mirrored with them (bottom-anchored text sits on the
right). It is now its own TextDir, kept on save; its lines' places are mirrored across the box.
wordArtVert (Stacked) was turned like vert. PowerPoint stands every character upright, one
under the other (Latin letters about one em apart, spaces their own width), with lines running
left to right. Stacked text now stands each character upright in an em of its own and mirrors
the line order.
Also: a bullet in the second or later column of a multi-column body is drawn on its line's
baseline (it kept the first column's).
w01-vertical s4 (mongolianVert) 11.54 -> 9.38, s5 (wordArtVert) 13.84 -> 13.56; w14-xml s13
6.78 -> 6.60.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
eaVert text was laid out exactly like vert: the whole text turned a quarter turn, so Japanese and
Chinese lay on their side. PowerPoint draws ideographs, kana, Hangul, full-width forms, CJK
punctuation, circled numbers and emoji upright, each turned back about the centre of its em box,
while Latin letters and digits stay on their side ("英字123も": 123 sideways). It keeps the glyphs'
horizontal forms (no vert alternates: "、" "「" are simply turned), which DeckCraft now matches.
Glyph runs carry an `upright` flag; the renderer turns each such glyph about its em box centre
(0.38 em above the baseline). w01-vertical s3 (eaVert) 9.70 -> 8.98, s6/s7 (eaVert rotated,
flipped, bulleted) 1.58 -> 1.45, 2.30 -> 1.76.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Every scheme other than the Latin, Roman and circled ones drew Arabic digits ("4." for
ea1ChsPeriod, "- 10 -" for arabic2Minus). Each is now written as PowerPoint's export draws it
(probe deck: one box per a:buAutoNum type and start value): Chinese numerals for ea1Chs/ea1Cht
(十, 十一, 二十一), digit-by-digit kanji with 〇 for ea1Jpn* (一〇), full-width digits for
arabicDb*, a full-width full stop after the East Asian ones, Thai letters (without ฃ ฅ ฆ) and
digits, Devanagari vowels, consonants and digits, the Arabic alphabet (arabic1Minus) and abjad
(arabic2Minus) and the Hebrew alphabet with a hyphen, and the Wingdings-style circles that go to
ten (circleNumWdWhite 13 → ③, circleNumWdBlack → ❶…). w04-lists s2-s4 drew wrong labels in 24 of
36 boxes.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Observed on PowerPoint's export of a wrapped Japanese paragraph (24 pt, 11 characters a line):
it breaks "けません（禁則処" / "理）。ー長音もで" / "す。っゃゅょ小書き文字", i.e. small kana
(っゃゅょ…), the prolonged sound mark and iteration marks never start a line (strict kinsoku),
where UAX #14's default allows it. And "し、句読点「、」や" / "「。」は…": with hanging punctuation on,
a closing bracket that overflows does not hang; only the ideographic comma and full stop (and
their full-width and half-width forms) do.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Observed on PowerPoint's export of long joined words:
- a line broken at a soft hyphen (U+00AD) ends with a visible hyphen ("Softhyphenatedwordsina-");
DeckCraft broke there but drew nothing. The hyphen now takes its room on the line;
- PowerPoint does not break after a zero-width space (it splits the word where it overflows
instead), where UAX #14 allows a break;
- an em dash ends a line but never starts one ("Em—dash—joined—" / "words—that—are—long—"),
where UAX #14 allows a break before it too.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Follow-up to the kerning rule: on the real corpus (ms6: titles condensed by 1 pt from the
master's title style) PowerPoint kerns condensed text, and a closer probe agrees for -0.6, -1,
-1.5, -2 and -3 pt (only -1.2 and -2.5 pt came out unkerned, which no simple rule explains). Only
spacing out by 0.6 pt or more now switches kerning off for the box. ms6 slides 2/7: 4.97 -> 6.44
-> back to 4.97, 7.05 -> 8.10 -> 7.05.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Every underline was a solid line 0.06 em thick at 0.12 em below the baseline, whatever a:rPr/@u
asked for. Underlines now sit at the font's own underline position and thickness (post table),
where PowerPoint draws them (Arial 96 pt: 10 px below the baseline, 7 px thick), and each style
is drawn as measured on PowerPoint's export: dbl two lines 0.55 thick spanning one thickness above
to the single line's bottom; heavy from one thickness above to 0.55 below; dotted dots and gaps one
thickness long; dashes three long with gaps of two; wavy a thin zigzag every 3.9 thicknesses. The
"words" style underlines spaces too, as PowerPoint draws it. Dashes and waves are new Deco line
kinds the renderer fills or strokes (warped text draws their boxes).
Underline slides: w14-xml s10 11.49 -> 10.43, s11 6.64 -> 4.06; w06-charfmt s3 9.66 -> 9.51,
s4 7.63 -> 7.44.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Tab stops were all left stops: a:tab/@algn was read and saved but ignored. As PowerPoint draws
them, the text after a tab (up to the next tab or line break) now ends at a right stop, is
centred on a centre stop, and has its first "." on a decimal stop (text without one ends there);
when that text is wider than the room before the stop it starts where the tab is, never further
left. Measured on PowerPoint's export: "right" ends at 180 pt, "12.5" and "1234.567" put the
point on the stop, "12,5" and "nodot" end at it.
A tab whose stop lies past the end of the line now starts the next line, so the text after it
sits on that line's first stop, as PowerPoint wraps "abcdefghij<tab>k<tab>l<tab>m…".
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
A run's solid fill with a:alpha was resolved into the glyph colour's alpha and also kept as the
run's fill opacity, and the renderer multiplied both: text at 60 % transparency drew at 16 %
opacity instead of 40 %. The colour now carries the transparency alone. PowerPoint's export of
"Transparent 60% text" (red) is a light red that now matches.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Small capitals were drawn at the full size of the run's first character: glyph runs grouped
cells by style and face only, so "HxHx" drew every letter at the capital's size on the small
capitals' narrower advances (letters overlapped). A lowercase letter in small caps now starts a
run of its own at 80 % (PowerPoint's small capital "X" is 0.81 of the capital "H" in Arial).
All caps and small caps mapped "ß" to "S" (the first character of "SS"); PowerPoint leaves a
character whose capital is a sequence as it is ("ß", "fi", "ʼn"), and maps the rest one to one.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
PowerPoint kerns pairs (a:rPr/@kern) only while no run of the text body is spaced out by 0.6 pt
or more or condensed by 1 pt or more; then no run of that box is kerned, even runs without
spacing. Measured on Arial 40 pt "AVATAR": spacing 0, 0.01, 0.5, -0.6 and -0.99 pt keep the pairs
(146 px wide), 0.6, 0.8, 1, 1.5 and -1 pt drop them in every paragraph of the box (158 px plus the
spacing). DeckCraft kerned spaced titles, making "AVATAR"-like words 12 px too narrow at 40 pt.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
PowerPoint does not resolve neutral characters with plain UAX #9: the language of each run
(a:rPr/@lang) decides. Measured with every space highlighted in its own colour:
- in a run of a left-to-right language (or none) punctuation and digits are left to right and a
space takes the direction of the character before it, so "abc HE1 HE2 def" shows the space after
the Hebrew words on their left, and an English sentence in an RTL paragraph keeps its full stop
at its end;
- in a Hebrew/Arabic run, neutrals between text of one direction take it, all others are right
to left, and digits are a number in the right-to-left text unless left-to-right text precedes.
Paragraphs with explicit embeddings keep the full algorithm. Bidi probe deck: mean diff 11.1 ->
10.0 on the four mixed-direction slides; corpus poi 6.660 -> 6.654, others unchanged.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
* ActiveX controls show their pictures
A slide's p:controls are read: each control with a p:pic (the image PowerPoint shows for it,
often a WMF) becomes a picture above the slide's shapes.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
* Metafiles draw their text, pattern and hatch brushes
deckcraft-metafile (still kurbo + thiserror only, so it builds for wasm):
- Text: WMF EXTTEXTOUT/TEXTOUT and EMF EXTTEXTOUTW/EXTTEXTOUTA/SMALLTEXTOUT with the
selected font (CREATEFONTINDIRECT, EXTCREATEFONTINDIRECTW: face, signed LOGFONT height,
width, weight, italic, underline, strike-out, escapement, charset), text and background
colour, background mode, TA_* alignment and TA_UPDATECP, the dx array (ETO_PDY pairs too),
ETO_OPAQUE fills and ETO_CLIPPED clips. 8-bit strings decode through their charset
(Windows-1252/1250/1251; symbol fonts keep their codes at U+F000; double-byte sets keep
their advances). The neutral Item::Text carries a text-space-to-picture transform, so the
mapping and escapement are folded in and glyphs are never mirrored.
- Brushes: WMF DIBCREATEPATTERNBRUSH, EMF CREATEDIBPATTERNBRUSHPT and CREATEMONOBRUSH, and
BS_HATCHED, as Item::Pattern tiles in 96-dpi pixels; WMF PATBLT. The XOR / AND-pattern /
XOR see-through shadow of old PowerPoint WMFs draws its pattern in the XOR colour.
- MFCOMMENT escapes with an embedded EMF are ignored: PowerPoint draws the WMF's records.
- Pattern pixels and text count against the byte budget; strings are capped.
deckcraft-render draws text through deckcraft-fonts with the face slide text would use
(document_face), symbol fonts mapped as bullets map them (deckcraft_text::symbol_char, now
public, with Webdings), per-character fallback, the file's advances, GDI cell metrics for
top/bottom alignment, underline/strike-out and synthetic bold/italic. Tiles below 1.5 output
pixels per cell are drawn as their average colour.
On the 24 corpus slides that show a metafile, mean abs diff against PowerPoint goes from
28.31 to 5.06 (with the OLE/ActiveX preview commits).
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
* Text: Ctrl+arrows, Ctrl+Backspace/Delete and the other text keys work like PowerPoint (#268)
Observed black-box in PowerPoint for Windows on synthetic text:
- Word stops (crates/model/src/words.rs): words, punctuation runs, symbol
runs, tabs, line breaks and each CJK character are tokens; trailing spaces
join the token before. it's, a-b, 3.14, 1,000 are one word; e.g., a_b and
x@y.com are not. Grapheme clusters never split.
- Ctrl+Left/Right and Ctrl+Shift+Left/Right move by those stops, across
paragraphs; with a selection they go on from its start/end. In a
right-to-left paragraph Left and Right swap.
- Ctrl+Backspace deletes to the previous stop; Ctrl+Delete deletes the rest
of the word, or spaces plus the next word, then applies PowerPoint's smart
spacing. With a selection both work from its start.
- Ctrl+Up/Down by paragraph, Ctrl+Home/End to the text's ends.
- End on a wrapped line goes past the trailing space and the caret stays
drawn at that line's end (TextSel::line_end); End again stays, Home
returns to the same line.
- Ctrl+]/[ and Ctrl+Shift+>/< change font size (egui's Period/Comma/
bracket key names now match registry shortcuts).
- Shift+F3 cycles lower -> Title -> UPPER; a caret changes its word.
- Double-click selects the word without trailing spaces; triple-click
includes the paragraph mark.
- Mac keeps Option for words and Cmd for line/text ends (Session::mac_keys).
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
* rustfmt
* Canvas: one caret, drawn at a wrapped line's end after End
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
* Text: input method composition as commands, one undo step per composition (#101)
text.compose shows an input method's preedit in place at the insertion point and replaces it on
each update; an empty preedit cancels and restores the text and selection. text.commit replaces
the composition with the result as one undo step. Any other edit, key or click settles an open
composition first. The composition is underlined under the baseline (thicker under the part being
converted), and the caret line is measured for empty placeholders too.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
* UI: Korean, Japanese and Chinese input and interface text (#101)
The slide turns the input method on while it takes typing, with the candidate window at the
caret, and forwards egui Ime events to text.compose / text.commit, so a Korean keyboard composes
syllables instead of separate jamo. Interface text in scripts the interface fonts lack (Hangul,
Simplified Chinese, Thai...) borrows faces from the font database (installed fonts such as Malgun
Gothic; nothing bundled): file names, titles, notes, outline, sections, comments and typed text.
Ported and widened from WordCraft's #565/#840 fallback. The notes pane keeps text typed before
focus leaves in the same frame (Escape, another slide). Control channel: ui.ime.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
* Text: a missing font is drawn in Calibri, as PowerPoint does
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
* Fonts: Windows family names find their faces; PowerPoint's twins for missing fonts
"Segoe UI Semibold", "Arial Black" and the like are the faces' Windows (GDI) family
names; a family's installed files now load together; Liberation Sans and Serif draw as
Arial and Times New Roman when missing, as PowerPoint draws them.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
* Fonts: Office cloud fonts (Aptos…) keep their open substitute
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
* Text warps: draw WordArt prstTxWarp presets, round-trip their adjusts
All 40 DrawingML text-warp presets now render instead of drawing flat text.
A warp is a list of bands over the shape's text rectangle (insets ignored):
fill bands stretch the ink of their lines between a top and a bottom guide
(positions by arc length, one horizontal scale for the whole text), follow
bands (arch, circle, button) set lines at natural size along an ellipse arc,
lines stacking outwards on parallel curves, with no wrapping. Lines are
shared over multi-band presets in order (ceil(n/k) per band).
The guide curves were fitted to PowerPoint renders of synthetic decks of
"I" bars (black-box observation, defaults and changed adjusts, 1-3 lines);
most presets match within about a point on a 420 x 200 pt box.
- geom: warp module (guides, presets, band mapping) with unit tests
- render: glyph outlines and underlines flattened, subdivided and mapped
- text: follow warps lay out without wrapping
- model/pptx: BodyProps.warp_adj read from and written to prstTxWarp/avLst
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
* Text warps: bands with fewer lines keep the fuller band's text height
Multi-band fill warps (Deflate-Inflate, Button Pour) map a box as tall as
the tallest band's ink onto every band, centred on the band's own ink, as
PowerPoint does: a band holding one line next to a band of two keeps the
line at the same size instead of stretching it over the whole band.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
PowerPoint keeps fi, ffi and Calibri's ti apart and kerns a run only when
a:rPr/@kern is set and the size reaches it; DeckCraft shaped with the font's
defaults (ligatures and kerning always on), so Calibri text read differently
and kern="0" text came out narrower.
Co-authored-by: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Bullets in Wingdings, Wingdings 2/3, Symbol and other symbol fonts were
always swapped for a look-alike from one Wingdings table, so a Wingdings 2
star (0xEA) became a round dot. When the deck's symbol font is installed,
its glyph is drawn (symbol fonts map character codes at U+F000 + code), as
PowerPoint does; otherwise Wingdings 2 and 3 codes get their own
look-alikes.
Co-authored-by: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Circled-number lists (circleNumDbPlain) and character bullets whose glyph
isn't in the paragraph's font were drawn as missing-glyph boxes (numbers)
or always from Inter (characters). Both now go through the usual font
fallback, as PowerPoint draws them.
Co-authored-by: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Run shadows and glows (a:rPr/a:effectLst outerShdw, glow) were read but
never drawn. The text layout now carries them on each glyph run (colours
resolved, sizes scaled with autofit) and the renderer draws every run's
shadow, then every glow, blurred, under the text. A text glow is solid to
about a third of its radius past the letters and fades out by two thirds,
as measured on PowerPoint's export. needs_filters also looks at text
effects (runs, list styles, master text styles), so they render with the
blur filter.
Co-authored-by: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
A gradient on text was read but drawn in its first colour. Each line is now
filled with the whole gradient, spanning that line's text from its top to
its bottom and its first to its last character, as PowerPoint does. The
gradient builder moves out of fill_path into paint::gradient so fills and
text share it (and PowerPoint's two-colour ramp). Gradient colours are
resolved when the text style is made.
Co-authored-by: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
* Emoji: colour glyphs, and emoji take the colour emoji font
Emoji were drawn as black outlines from a symbol font, with ZWJ sequences
(families, flags) falling apart into their parts. Now:
- an emoji cluster (emoji presentation, U+FE0F, ZWJ between pictographs,
skin tones, regional indicators, keycaps) takes an installed colour font
(COLR, CBDT, sbix or SVG tables) before the document's fonts, so its
sequences ligate as in PowerPoint; U+FE0E keeps a plain face;
- COLR v0 and v1 glyphs are painted in their CPAL colours (solid fills,
linear, radial and sweep gradients, transforms, composite modes), with
palette index 0xFFFF in the text colour.
A tiny COLRv0 test font (two squares, CC0, regenerated by
make_colr_font.py) backs the render test.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
* Render: lock skrifa for colour glyphs
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
* Text: wrap lines where PowerPoint does
- Without latinLnBrk (PowerPoint's default) a word doesn't break after '/'
or '\': URLs and paths fill the line and break at its edge.
- Korean wraps between words, not between syllables.
- With hangingPunct, closing East Asian punctuation hangs past the end of
the line instead of dragging the previous character down.
ParaProps gains latin_line_break and hanging_punct, read and written as
latinLnBrk and hangingPunct.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
* Text: simpler break guard (clippy)
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
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Co-authored-by: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
