Commit Graph
369 Commits
Author SHA1 Message Date
Nikita RakitinandCursor e4022e6702 UI: Paragraph dialog sets alignment, indents and spacing
format.paragraphDialog applies alignment, first-line and hanging
indents, spacing and line spacing in one undo step. With no fields it
opens the dialog from the Home › Paragraph launcher. Tabs… opens a
standalone Tabs dialog and returns to Paragraph.

Co-authored-by: Cursor <cursoragent@cursor.com>
2026-10-14 02:59:40 +03:00
Nikita RakitinandCursor 68ab3a4839 UI: Font dialog sets character formatting in one step
format.fontDialog applies family, size, bold, italic, underline, colour,
strikethrough, baseline, caps and spacing together, so one undo restores
them. With no fields it asks the UI to open the dialog, seeded from the
selection. Home › Font, the shape menu and Cmd+T open it.

Co-authored-by: Cursor <cursoragent@cursor.com>
2026-10-14 02:41:28 +03:00
Nikita RakitinandCursor 304bf06290 Insert: Lucide icon gallery as stroked shapes
Insert › Icons places seventy Lucide 1.56.0 stroke icons as custom
geometry: no fill, round caps, and a line width scaled from the
24-unit design. The gallery searches by name. SVG paths, including
arcs, are converted when the icon is inserted so the renderer strokes
the outline.

Co-authored-by: Cursor <cursoragent@cursor.com>
2026-10-14 02:31:54 +03:00
Nikita RakitinandCursor eb7e346ea1 Text: underline an IME composition in a table cell
The preedit was already stored in the cell. It is now laid out the same
way the cell is drawn, and the editor underlines it in place, thicker
under the part being converted. The caret and the input method's
candidate window sit in that cell. Notes stay an egui text field.

Co-authored-by: Cursor <cursoragent@cursor.com>
2026-10-14 02:08:14 +03:00
Nikita RakitinandCursor 1a0ffc6413 Draw: pen pressure scales ink width
A pen reading of 1 is the full pen width. A lighter touch draws a thinner
stroke, and a zero reading stays visible at 8% of the pen. A mouse, a
missing or non-finite reading, and a stroke whose samples are all the old
placeholder 0.5 still draw at the pen width. PPTX keeps one width per
stroke: the mean of the samples for a pressured stroke, the pen width for
a legacy one. Tilt is not read.

Co-authored-by: Cursor <cursoragent@cursor.com>
2026-10-14 01:56:23 +03:00
Nikita Rakitin 768641615a Render: draw chart trendlines
Fit linear, exponential, logarithmic, polynomial, power and moving-average
lines, including forecast, and draw them with the equation and R² label.
2026-10-14 01:29:51 +03:00
Nikita RakitinandCursor 0cbee85ea8 File: six original starter decks
File › New and the start screen offer Briefing, Lesson, Pitch, Field Notes,
Quarterly and Evening Talk. Each is a few slides of our own text on one of
our themes. file.new takes template, and file.templates lists them. Passing
a theme as well, or blank, is refused. PowerPoint's large gallery is still
open.

Co-authored-by: Cursor <cursoragent@cursor.com>
2026-10-14 01:12:38 +03:00
Nikita Rakitin 8fd04ebd92 PPTX: round-trip chart trendlines
An owned corpus slice checks combo charts with data labels, merged
tables with diagonal borders, and text columns, autofit, vertical text
and a WordArt warp. Trendlines (type, order, period, forecast,
intercept, equation and R²) are now read and written.
2026-10-14 00:58:20 +03:00
Nikita RakitinandCursor afd058a8ff UI: sections in the Slide Sorter
The sorter draws a bar for each section. Add Section splits at the current
slide, double-click renames in place, the chevron collapses that section, and
dragging the bar moves the section and its slides together.

Co-authored-by: Cursor <cursoragent@cursor.com>
2026-10-14 00:50:34 +03:00
Nikita Rakitin c94b5c8d1e PPTX: round-trip 3-D models and animation bounce end
An owned corpus opens, saves and reopens SmartArt and OLE kept as XML, audio and video bookmarks and trims, a section with a hidden slide, slide-number and date fields, ink, .glb models and animation repeat, bounce end and triggers. Relationship-bearing SmartArt and OLE, playback options and rewind stay with their open PRs.
2026-10-14 00:35:12 +03:00
Andreas Haraminac 641fa36a8e Media.seek: preserve decoded frames and EOF across video seeks 2026-10-13 21:24:26 +00:00
Nikita RakitinandCursor b89c9cafd7 UI: preview slide animations on the editor canvas
Animations › Preview and Animation Pane › Play All play the current
slide on the canvas instead of opening the slide show. Escape or a
click stops playback. Transitions › Preview still opens the show.

Co-authored-by: Cursor <cursoragent@cursor.com>
2026-10-14 00:21:42 +03:00
Nikita Rakitin 184b76e2a7 Round-trip text effects, layout, fills, bevels and connectors
An owned corpus of those kinds survives open, save and reopen. A run's
inner shadow, reflection and soft edge were dropped, and a bevel preset
with no kept 3-D XML was not written back, so import and export now keep
them.
2026-10-14 00:04:22 +03:00
Nikita RakitinandCursor 4dbea3256f UI: View › New Window opens a second window
The editor had one window, so looking at another slide meant leaving
the one you were editing. View › New Window opens one more window on
the same presentation. That window keeps its own slide and shows edits
from the first window. Closing it leaves the presentation open.
Arrange All is not included.

Co-authored-by: Cursor <cursoragent@cursor.com>
2026-10-13 23:52:40 +03:00
Nikita Rakitin f9d5a43174 Round-trip comments, links, shows, groups and inherited placeholders
An owned corpus of those element kinds survives open, save and reopen.
Paragraph default run properties, including a link, and action sounds
were dropped on save, so import and export now keep them.
2026-10-13 23:43:03 +03:00
Nikita RakitinandCursor 37559f793c UI: Grid Options sets spacing, snap and the on-screen grid
View › Grid Options sets the grid spacing, snap to grid, snap to
other objects, and whether gridlines and guides are drawn. The
canvas grid follows that spacing.

Co-authored-by: Cursor <cursoragent@cursor.com>
2026-10-13 23:14:52 +03:00
Nikita Rakitin 034b312a64 Round-trip tables, charts, animation, media, sections and masters
An owned corpus of those deck kinds survives open, save and reopen. The
check found the handout master — printed header, footer, date and slide
number — was dropped on save, so import and export now keep that part.
2026-10-13 23:08:31 +03:00
Nikita RakitinandCursor 10ad8d7ba7 UI: keep editor slides on the Retina pixel grid
The editing canvas, thumbnails and layout previews were drawn between
physical pixels, so a linear filter blurred small text. The slide show
draws much larger glyphs, which is why presenting still looked sharp (#184).

Co-authored-by: Cursor <cursoragent@cursor.com>
2026-10-13 22:44:42 +03:00
skylar taylor-barrick c536c6e905 PDFW2: adopt shared PDF writer with explicit embedding errors 2026-10-13 13:39:33 -06:00
skylar taylor-barrick 7d5dd85209 UI-FONTS: continue fallback selection past ineligible faces 2026-10-13 13:39:33 -06:00
Nikita RakitinandCursor a7bc932cc8 UI: WordArt adjust handles drag a text warp
A selected text warp shows one yellow handle per adjust.
Dragging it sets that guide value in one undo step.

Co-authored-by: Cursor <cursoragent@cursor.com>
2026-10-13 22:38:16 +03:00
Nikita RakitinandCursor 6a85afa236 Pptx: round-trip an owned corpus and keep notes-master text
Open, save and reopen decks we author, and compare package parts and
text. The check showed a notes master's header and footer were replaced
by an empty notes master on save.

Co-authored-by: Cursor <cursoragent@cursor.com>
2026-10-13 22:34:29 +03:00
Nikita RakitinandCursor 283b30f12d UI: WordArt Transform gallery applies a text warp
Shape Format ▸ Text Effects lists the 40 prstTxWarp presets and
No Transform. format.textWarp sets or clears that warp on the
selected text, with optional adjust values.

Co-authored-by: Cursor <cursoragent@cursor.com>
2026-10-13 21:58:35 +03:00
Nikita RakitinandCursor 5d4bfc0846 Media: keep playback with the document and the clip
Shape ids are local to one presentation, and decoded audio was cached by the
address of a buffer the cache did not keep. Switching decks, closing the last
one, or replacing a clip could keep the previous sound. Playback now stops
when the document changes or closes, a new source replaces the voice's audio,
and the decode and duration caches hold the bytes they are keyed by.

Co-authored-by: Cursor <cursoragent@cursor.com>
2026-10-13 20:57:08 +03:00
Nikita RakitinandCursor 8bab5c2053 Web: keep a picked file on the document and slide that asked for it
The browser file picker only queued a name and bytes. When the read
finished, DeckCraft guessed the command and ran it on whichever
document and slide were active, so a picture, sound or outline could
land in the wrong place, and a later pick could finish first.

The request now keeps the document, the slide or master, the operation
and a cancellation id. A completion applies there, or is dropped when
that target is gone or the picker was dismissed.

Co-authored-by: Cursor <cursoragent@cursor.com>
2026-10-13 20:53:10 +03:00
Nikita 6873a25635 Codecs: a hostile number is a format error, not an overflow
H.264 and HEVC quantiser offsets, Matroska block times, Opus granule timing and QuickTime PCM frame sizes are range-checked before the arithmetic.
2026-10-13 20:16:51 +03:00
ZetenypappandClaude Opus 5.5 1baf1f5569 Copy and Cut buttons and menus put the text on the system clipboard (#431)
Ctrl+C and Ctrl+X ran edit.copy / edit.cut and handed the returned text
to egui's clipboard; the ribbon's Copy and Cut, the slide's right-click
menu, the menus, the palette and the control channel ran the same
commands through SlideApp::run, which dropped the text, so it never left
DeckCraft. SlideApp::run now keeps the text of a successful Copy or Cut
and hands it to the clipboard on the next frame, like pending URLs.

Regression test: copy_and_cut_commands_reach_the_system_clipboard runs
both commands and checks the frame's CopyText output (it fails without
the fix).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-13 18:45:38 +02:00
Sazid Al Bayazid 8ba97e61be Slide show: Honeycomb's hexagons cover the whole slide again (#420)
The row count came from 1/(1.5*rh) - the row spacing alone - and
ignored how far a settled hexagon actually reaches. On a 16:9 slide
the eleven rows stopped at ~75% of the height: from t~0.9, when every
cell has settled, the bottom quarter was plain black until the t=1
endpoint snapped to the full new slide.

The count now derives from the real geometry: rows sit 0.866*rh apart
and the flat bottom zone of a settled hexagon reaches 0.289*rh past
its centre, so counting to the flat-zone reach covers the slide for
every aspect ratio - counting to the vertex reach still left small
V-notches of black above the bottom edge on about a third of them
(US Letter, square, ...). 16:9 gains four rows (15, was 11), 4:3
seven (20, was 13).

Tests: at t=0.99, when every cell is settled and the seams are nearly
closed, a 0.02-step grid over the slide must sit inside settled
incoming cells (padded 1% past the hairline seams) on five aspect
ratios including US Letter and square. Fails on the old count at
(0.2, 0.74); before/after frames rendered with render-transition.
2026-10-13 21:58:25 +06:00
NikitaandCursor 0b35b74c4d Show: a laser pointer that leaves no ink
Cmd/Ctrl+L and the on-screen button draw the show's laser colour at the pointer. The pen and the laser are not on together, and a click does not advance the slide while the laser is up.

Co-authored-by: Cursor <cursoragent@cursor.com>
2026-10-13 18:35:32 +03:00
NikitaandCursor 525b7ed3f9 Palette: skip commands that need a value
Searching for Export ran file.export with an empty object and reported a missing path. The palette now offers only commands that accept that call, so Export opens the dialog.

Co-authored-by: Cursor <cursoragent@cursor.com>
2026-10-13 18:31:02 +03:00
NikitaandCursor 82dcd86c88 Pptx: read and write embedded fonts
A deck that embeds a TrueType or OpenType face, including one wrapped as Embedded OpenType, now draws with that face and saves it back. MicroType Express subsets stay in the file and still draw in a stand-in.

Co-authored-by: Cursor <cursoragent@cursor.com>
2026-10-13 18:22:48 +03:00
Sazid Al Bayazid e70fce996b Model: an exhausted id space refuses growth instead of duplicating ids (#407)
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).
2026-10-13 21:13:25 +06:00
NikitaandCursor 4fee02636a Metafile: clip EMF and WMF drawing to rectangle regions
INTERSECTCLIPRECT, EXCLUDECLIPRECT and EXTSELECTCLIPRGN limit what later records paint, including a region made of several rectangles. A rotated map stores the bounds of the clip rectangle.

Co-authored-by: Cursor <cursoragent@cursor.com>
2026-10-13 17:57:34 +03:00
NetterSilver 12dd392705 Docs: update the progress docs for this change 2026-10-13 16:41:57 +02:00
Sazid Al Bayazid 78a99ad1cf Start screen: a missing Recent file is marked, its error shows, and entries can be removed (#172)
The start screen reported errors through set_status, but the status bar
is only drawn while a presentation is open: clicking a Recent entry
whose file had moved or been deleted did nothing visible, and the same
went for every other start-screen error, like a failed sample open.

The start screen now draws the transient status message itself: a real
label, so screen readers see it too, wrapped so a long OS error does
not clip at the panel edge. Recent entries whose file no longer exists
are dimmed with a "(missing)" mark before anything is clicked, each
entry has a remove button, and a successful open clears a stale error.

Existence is probed once per path per session; a stat on a dead network
share can block for the OS timeout, so UNC paths and URLs are never
probed and are judged when opened instead.

The remove button is a plain multiplication sign: U+2715 has no glyph
in the UI font stack and egui would draw the replacement character.

Tests: the missing mark and the drawn error (kittest, clicked through
the real UI), removal from the list, and the negative case - an
existing file is not marked.
2026-10-13 19:43:15 +06:00
Sazid Al Bayazid 69d4893689 Comments: threads and resolved state survive a .pptx round trip (#70)
The writer emitted the legacy comment part only: replies were flattened
into sibling comments, the resolved flag was dropped. Modern PowerPoint
decks carry a second, threaded part (p188) as well - and DeckCraft read
both, importing every comment twice.

Export now writes the modern threaded part (p188:cmLst, with the slide's
commentRel anchor ext and the modern authors part) next to the flattened
legacy part, the same pair of parts PowerPoint itself writes: older
readers keep the legacy view, PowerPoint 2021+ and DeckCraft read
threads, replies and resolved state. The reader prefers the modern part
when both are present and scales modern positions as EMU instead of
legacy 1/8 pt, so real PowerPoint decks stop double-importing their
comments and keep their marker positions.

Comment ids are deterministic GUIDs from the existing tables::guid, so
exports stay reproducible without a new dependency.

Known limitation for a follow-up: comments anchor with
p188:unknownAnchor (schema-valid) rather than a slide moniker, which
needs part identity the model does not have yet.

Tests: threads plus resolved state round-trip on top-level comments and
replies, both parts and the anchor-rel wiring asserted in the raw
package, part numbering with comment-free slides skipped, legacy-only
and modern-only packages import each with their own position units, and
XML-special characters survive the trip.
2026-10-13 19:25:04 +06:00
Brandon Thomas 457406a7a5 Docs: keep the progress table in one piece 2026-10-13 08:16:41 -04:00
Brandon ThomasandClaude Opus 5.5 e614f0d6d6 Docs: record the wild shape rendering fixes and partial 3-D rendering
Progress log entry for the wild-case rendering fixes; "Bevel and 3-D
rotation" moves from missing to partial (approximate bevels, cameras and
face lighting; no extrusion, rigs or 3-D pane); gap estimate narrowed.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
2026-10-13 08:16:41 -04:00
Brandon Thomas 525ec7b1a9 Docs: keep the progress table in one piece 2026-10-13 06:48:43 -04:00
Brandon ThomasandClaude Opus 5.5 5ca1dad281 Docs: progress log for the wild text cases
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
2026-10-13 06:48:43 -04:00
Brandon ThomasandClaude Opus 5.5 d5e30557eb Transitions like PowerPoint: measured frame by frame and retuned (#366)
Every transition and Effect Option was built in PowerPoint (COM), exported as
video and compared frame by frame with DeckCraft at the same progress
(mean abs diff over 150 variants 35.7 -> 15.0, 0-255).

- anim: transition_frame(kind, option, t, aspect) with measured curves
  (smoothstep fades, ease-in-out moves, Cover/Uncover/Pan curves), directions
  and option meanings, soft edges as per-corner opacity, 3-D effects as
  perspective-projected cards, Dynamic Content moving slide contents over
  cross-fading backgrounds (Source::OldBack/NewBack/OldContent/NewContent);
  layer_mesh subdivides perspective quads so textures stay straight.
- New options: Page Curl Single, Glitter Hexagons, Shred In/Out, Zoom and
  Rotate; PowerPoint-style Effect Options labels.
- render: composite_transition (CPU twin of the show), render_slide_part,
  render_transition; deckcraft-cli render-transition FILE --slide N --t T.
- show: per-vertex opacity meshes, slide parts rendered once per transition.
- pptx: PowerPoint's elements and defaults (p:strips diagonal wipes, p14:warp
  and p:newsflash for Zoom, p:zoom for Shape In/Out, glitter pattern, shred
  rectangle/dir, prstTrans invX per preset, pageCurlSingle, defaults for
  randomBar/doors/window/pan/zoom); PowerPoint reopens DeckCraft's files with
  the same effects.
- Tests: measured curves, probes of which slide shows where at t, option
  coverage, per-frame triangle budget, PowerPoint XML and defaults round trip.

Co-authored-by: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
2026-10-13 05:31:13 -04:00
pierrevbc 8392081976 Progress docs: table cell editing and border resizing 2026-10-13 11:30:13 +02:00
pierrevbc 71ddbc59dc Progress docs: Export button in the title bar
- ui-parity.md: title bar row; status line and history.
- ROADMAP.md: progress log line. Quick Access toolbar / title bar commands stays P (no
  customization); no gaps.md entry covered this.
2026-10-13 11:27:10 +02:00
pierrevbc 09d6a6c715 Progress docs: right click selects the shape under the pointer
- ui-parity.md: context menu row; status line and history.
- ROADMAP.md: progress log line. No checklist row changes score; no gaps.md entry covered this.
2026-10-13 11:26:29 +02:00
pierrevbc 8c5f101e68 Progress docs: drag the frame of edited text to move the box
- ui-parity.md: Direct manipulation row added; status line and history.
- ROADMAP.md: progress log line. The checklist rows involved (Text boxes, In-place text editing)
  are already D; no gaps.md entry covered this.
2026-10-13 11:26:11 +02:00
pierrevbc daf612b8fd Progress docs: SmartArt text on its dsp:txXfrm rectangle
- file-format-parity.md: SmartArt row notes the text rectangle; status line and history.
- ROADMAP.md: progress log line. No checklist row changes score (Insert SmartArt stays P), and
  the gaps.md SmartArt entry (pre-drawn shapes only) still holds.
2026-10-13 11:24:04 +02:00
NikitaandCursor 8788f994ef Charts: keep the embedded workbook when a chart is saved unchanged (#335)
PowerPoint stores chart data in ppt/embeddings. Saving used to drop that part and the chart relationship, so the deck still rendered but the workbook was gone. An edit still omits the workbook rather than writing numbers that no longer match it.

Co-authored-by: Cursor <cursoragent@cursor.com>
2026-10-13 10:40:59 +03:00
Brandon ThomasandClaude Opus 5.5 1660982e58 File tab: PowerPoint's File view (Home, New, Open, Info, Save As, Print, Export, Close) (#76) (#344)
* Engine: file.info and PowerPoint-style print slide ranges (#76)

file.info reports what File › Info shows (name, path, format, unsaved
changes, slide and hidden-slide counts, sections, size on disk,
properties). file.export's PDF `slides` also takes the range typed in
PowerPoint's Print page ("1-3, 5", 1-based); bad or out-of-range text is
an error instead of a silent full export.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

* UI: the File tab (Backstage) like PowerPoint's (#76)

File (first ribbon tab) or Alt+F opens a full-window view in place of the
ribbon, slides and status bar: a side menu (Back, Home, New, Open, Info,
Save, Save As, Print, Export, Close; Account and Options at the bottom)
and the chosen page. Esc or Back returns; Up/Down walk the side menu and
show each page as it gets the focus; Enter runs Save/Close/Options.
Laid out after PowerPoint for Windows as observed: 160-pt menu a step
darker than the page, outline icons, current page in the accent colour.

The start screen is now File › Home (as in PowerPoint), with only Home,
New and Open at the top and no Back. Pages call existing commands and
file helpers: file.new {theme} and the sample deck (Home, New); recent
files with search, Browse and Recover Unsaved (Open); file.info and
file.properties, Accessibility Checker, Revert (Info); file.save /
file.saveAs / file.export by type (Save, Save As); a PDF with the Print
page's slides, layout (full page, notes, handouts 1-9), hidden slides and
frames, opened in the system viewer or downloaded on the web, with a
page preview (Print, Ctrl+P); Create PDF, Create Handouts and Change File
Type (Export); appearance and About (Account); Preferences (Options).
Share (cloud) is left out.

Close and Ctrl+W now ask Save / Don't Save / Cancel about unsaved
changes instead of closing at once. The Export dialog shares
SlideApp::export_as with the Export page. New UI commands: app.backstage
{page}, app.closePresentation, app.print; ui.inspect reports the page.
New icons drawn in code: back, save as, account, recent, new file, open
folder.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

* Docs: File tab (Backstage) in ui-parity, gaps, checklist and progress log (#76)

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
2026-10-12 23:56:02 -04:00
NetterSilver c4f355773d Docs: update the progress docs for this change 2026-10-12 22:44:18 -04:00
Brandon ThomasandClaude Opus 5.5 e28851d2f1 Pictures: WMF/EMF text, pattern and hatch brushes draw; ActiveX previews show (#336)
* 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>
2026-10-12 22:40:56 -04:00