Font services (NexusFont, Adobe Fonts) register faces with the OS without
touching font-folder mtimes; only re-asking the platform lister sees them.
Check every two seconds as well as on window focus, and test that path churn
is detected on the system font scan.
Co-authored-by: Cursor <cursoragent@cursor.com>
When type had used a font, removing the font while the app ran left
it in the font menus, and the type kept drawing in it until the app
restarted. The font list is the loaded faces plus the scanned catalog,
and a scan replaced the catalog but kept every loaded face.
A scan now drops each loaded face whose file it did not catalog, with
the face's cached outlines. A family with no face left leaves the font
lists, and type set in it lays out in the fallback font and is
reported missing, as when a document opens without the font. When the
font is installed again, the next scan lists it and the type draws in
it again. Bundled fonts and fonts added as bytes have no file and
stay.
Docs: docs/mcp.md, docs/target-app-parity.md.
For a name that is neither a loaded nor an installed family,
FontDb::canonical built the list of names of every loaded face on
every call. Layout asks for a style's face for each span it shapes
and three more times per paragraph, so the time to lay out type set
in a font that is not installed grew with the number of fonts loaded:
a story of 1,000 paragraphs took a median of 409 to 507 ms in a
release build with 400 fonts added.
The database now keeps canonical's answer for each such name and style
until fonts are added or rescanned, and it keeps at most 4,096
answers. The same story takes a median of 56 to 71 ms, and canonical
gives the same answers as before.
Docs: docs/target-app-parity.md.
A character missing from every installed font was remembered as missing for the whole
session, so installing a font that has it didn't help until a restart. A rescan of the
font folders now forgets those misses, and a search a rescan overtook doesn't record one.
Taken from #992 by sanyamsingh001, without its font file probe.
Co-authored-by: sanyamsingh001 <314051937+sanyamsingh001@users.noreply.github.com>
Thai typed in a font without Thai glyphs (Source Sans 3, a Latin font)
took the first loaded face that had them, or the first installed file
that did, in path order: on one Windows machine a display face (Kanit)
rather than Leelawadee UI. Characters of Thai, Lao, Khmer and Myanmar
now try fonts made for their script first, installed ones loaded on
demand (Leelawadee UI, Tahoma, Thonburi, Sukhumvit Set, Noto Sans Thai,
the TLWG fonts for Thai), then the fallback as before. Latin beside
them keeps the font chosen.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
A folder search reads at most 8 MB of each font file. The suitcase
reader reads a suitcase font's resource fork whole, up to 256 MB.
Before this change, the search applied its limit to each font only
after that read. One search thread could read 256 MB from a single
suitcase and hold a copy of its fonts as well. The search now reads a
suitcase font only when its resource fork is 8 MB or less. The font
scan still reads each suitcase font's resource fork whole, up to
256 MB.
Docs: docs/mcp.md.
When a document opens with fonts that aren't available, fonts used
only in its symbols included, VectorCraft lists them in a Missing
Fonts dialog after the missing linked file questions, one document at
a time, with Find Fonts and Close. Find Fonts opens Type › Find Font
on the first missing font of the layers' type, to replace it. After
Find Fonts or Close the dialog doesn't open again for that open; when
another dialog replaces it, it opens again once that dialog closes.
Search Fonts Folder (the Fonts folder File › Package writes next to
the document) and Find in Folder… search a folder and its subfolders
for the fonts' files, and Add Fonts copies the files the user chooses
into a Fonts folder next to the preferences. The desktop app and
vectorcraft-cli read that folder with the system's font folders. Type
› Find Font has a Find in Folder… button too when fonts the document
uses are missing. The web app shows no dialog; a status message says
how many fonts aren't available.
- text.missingFonts lists each missing family and style once,
whatever version the document's type names, and leaves out CSS
generic families such as sans-serif. text.findFontFiles searches a
folder on up to 8 threads and returns at once; text.findFontFiles {}
reports the search, and {stop: true} stops it. A search reads only
what the font scan reads of font files (their table directories and
name, fvar and OS/2 tables) and, on macOS, of suitcase fonts, and
lists a file for a font only when the file makes the font resolve
exactly. It does not enter app packages, the Program Files and
ProgramData folders, the system's folders at the root of a volume,
the Shared and Public folders in Users, a home folder's Library,
AppData, Applications, snap and dot folders, a Library folder's app
data folders or the folders the environment names for apps, and it
skips other hidden folders and does not follow links below the
picked folder. It ends after 60 s by default, after 10,000,000
entries listed, with more than 1,000,000 folders waiting, after
10,000 font files read or 1,000 kept, or once every font has a file;
Stop and Close end it too.
- text.addFontFiles copies only files the last search found. Of
those, it copies only regular .ttf, .otf, .ttc, .otc, .woff and
.woff2 files and suitcase fonts with their resource fork, at most
256 MB a file and 1 GB in all. It never replaces a file: a file with
the same contents is kept, and when another file has that name, the
copy gets a number (Name 2.otf). The fonts are then scanned again,
and type set in them redraws.
- ui.missingFontsDialog and ui.findFontsInFolder open the dialog for
agents; docs/control-protocol.md lists its fields.
- File › Package gives a font file whose name has no font extension
the extension that matches its data (.ttf, .otf or .ttc).
- vectorcraft-text adds set_app_font_dir, which system_font_dirs
reads, WantedFonts, which reads a font file's names as the font scan
does, is_font_file and is_suitcase. #762 split its face reader, which
now takes read budgets: file_face_names_within tries the suitcase
reader first, and reader_face_names_within applies the budgets to
each font. vectorcraft-format adds write_new_with.
Docs: docs/mcp.md, docs/control-protocol.md, ROADMAP.
The font scan read only the macOS font folders and the Additional
Fonts Folder, so fonts that apps and font managers register with
CoreText from their own folders were missing from the font menus, and
exports set such type in the fallback font. CoreText's font manager
lists them with the installed fonts.
- `mac_fonts.rs` lists the files of the fonts the font manager has
available (`CTFontManagerCopyAvailableFontURLs`, through
objc2-core-text), keeping only file URLs as `open_documents.rs` does
(#433). The desktop app and `vectorcraft-cli` install it as they
install the DirectWrite lister on Windows, and the scan reads the
files outside the font folders in place.
- The scan leaves out faces with no outlines the font engine draws (no
glyf, CFF, CFF2 or VARC table), on every platform. CoreText lists
Apple's PingFang UI interface font (macOS 27), whose outlines are in
an hvgl table; if the scan cataloged it, PingFang SC would count as
installed, and Chinese characters in fallback text, Japanese kanji
included, would draw blank.
- Tests: the list holds the installed fonts by full path, a font
registered from another folder is listed while it is registered, and
a face without outlines the engine draws isn't cataloged.
References can share data, so a damaged fork could make the scan copy one
large resource up to 256 times: cap the total copied like the fork itself.
Off macOS no file has a fork, so the scan doesn't look at each font file twice.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
macOS lists fonts such as the ones Microsoft Office installs in
/Library/Fonts/Microsoft (Bookman Old Style, Impact, Georgia, Tahoma, ...) but
their files have nothing in the data fork and no font extension: the fonts are
`sfnt` resources in the resource fork. The font scan only read data forks of
.ttf/.otf/.ttc/.otc files, so those families were never cataloged and a file
using one (an EPS naming BookmanOldStyle-Bold) showed the font as missing.
The scan now catalogs a file with an empty data fork and a resource fork by
the fonts in that fork, and loading reads them the same way. The fork reader
(crates/text/src/suitcase.rs) follows Apple's published resource file format,
caps what a damaged fork can make it read and never panics. macOS only.
Tests: the fork reader on a synthetic fork built around a bundled font,
including truncated and garbage forks; a macOS scan of a suitcase file.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Font services load their fonts with GDI at run time, from files in their
own folders, without installing them: neither the font folders nor the
registry list them, so the font scan never saw them. DirectWrite's system
font collection holds them since Windows 10 1607.
- vectorcraft-text: `set_platform_font_files` lets the app name font files
the platform knows; each scan and each check for installed fonts asks
again and reads those outside the font folders. A file named by itself
is read whatever its extension (font services keep fonts in files
without one).
- The desktop app lists the local files of DirectWrite's system font
collection on Windows (`system_fonts.rs`, through the windows crate
already in the build), read in place.
- The check for fonts installed while the app was in the background runs
on a thread: DirectWrite's check for updates takes about 50 ms.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The scan read only the platform's font folders, once per session (or on
Character panel menu > Refresh Font List). Fonts Windows registers outside
its font folders (installed as shortcuts, or by programs into their own
folders) never listed, nor did fonts installed while the app was open.
- Windows: the font files registered under the local machine's and the
user's Fonts registry keys outside the scanned folders are scanned too
(windows-registry, the windows-rs project's safe registry API).
- Linux/BSD: the XDG data folders' fonts (XDG_DATA_HOME, XDG_DATA_DIRS:
Flatpak, Snap, NixOS, Guix) and a Flatpak sandbox's host fonts
(/run/host/fonts, local-fonts, user-fonts); macOS: /Network/Library/Fonts.
- The global database looks the platform's paths up again at each scan,
and a scan's roots may be font files as well as folders.
- FontDb::installed_fonts_changed compares the folders the last scan read
(their modification times, and the paths it started from); the app
checks it when its window comes back to the front and rescans
(text.rescanFonts) only when fonts were installed or removed meanwhile.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
macOS keeps faces for its own interface under family names that start with
"." (".SF NS", ".LastResort", ".Aqua Kana"…); Mac apps don't list them. Since
the font menus list every installed family (#36), they showed 74 of them on a
stock macOS, at the top of every list.
- FontDb::menu_family_list: family_list without names that start with ".",
cached like it. Only a leading dot hides a family.
- Type › Font, the family dropdowns (Character, Properties), text.fontList and
Refresh Font List's count use it.
- Lookups by name still see every family: documents and fallbacks that name
a hidden family still find it (face, has_family, find_family, families,
text.fontList {family}, Fonts in Document's missing check).
- Test: tests_sysfonts::font_lists_leave_out_hidden_system_families_which_still_resolve
(a temporary font folder); the engine and UI font-list tests compare with
the listed families.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
A document names its fonts by PostScript name, which the importer split at the
first hyphen into family and style. A family with hyphens in its name was never
found: "Rounded-X-Mplus-1c-black" became family "rounded", style
"x-mplus-1c-black", and the text fell back to another font. Common Japanese
families have hyphens in their names.
The system font scan now also indexes each installed face's PostScript name
(read from the same name table it already reads). The importer asks for the face
with that exact name first (`FontDb::by_postscript_name`) and splits the name only
when no installed face has it.
Test: installed faces are found by PostScript name, in any case.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Opening, placing, pasting or importing a file, the font menus and MCP now find
the installed system fonts (Arial, Times New Roman...) in a fresh session, so a
file renders the same whatever happened earlier, and PDF import keeps the real
family names (Microsoft YaHei, not "Microsoft Ya Hei").
Root cause: FontDb only consulted the system font catalog, which stayed empty
until a CJK fallback or Character panel > Show System Fonts happened to scan
the font folders. Every lookup by family name (face, families, styles,
has_family) now waits for one cataloging scan per session: the app starts it
in the background, other processes run it on first use. The scan reads only
each file's table directory and name table (about 70 ms for 780 faces here,
instead of reading every font file whole), the catalog is indexed by family,
the family list is cached, and an installed style of a loaded family (a
bundled family also installed with more weights) loads when asked for.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
bflatastic