3 Commits

Include renames

Author	SHA1	Message	Date
adminandClaude Fable 5	57b8b84f7d	Dot 2: CFF/Type1C tran boc thanh OTF (cffwrap parser toi thieu: CharStrings/Encoding/charset/FontMatrix; hmtx tu /Widths, asc/desc tu FontDescriptor); tounicode thu widths/DW/ascent/descent; goi CJK tuy chon (fetch-fonts-cjk.ps1 + ff-app-cjk lazy theo noi dung) ... Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>	2026-08-10 16:55:06 +07:00
adminandClaude Fable 5	74f161a627	Dot 1 "edit chuan moi PDF": CID/Identity-H font, format TUNG CHU, edit OCR, bu metrics, splash, Open-with ... 1) fontfix v2 (PDF tu Word/InDesign): tong hop bang name/post khi subset thieu (OTS bat buoc); font CID/Identity-H KHONG co cmap -> dung cmap (3,1) fmt4 tu /ToUnicode x /CIDToGIDMap (Identity: GID=CID; stream 2B/CID parse tu descendant font); chan GID >= numGlyphs (maxp). tounicode.rs tra FontMapping {code_to_uni, is_cid, cid_to_gid}. 2) Format TUNG CHU trong o sua (chuan Word/Foxit): boi den -> B/I (nut toolbar khong cuop focus + Ctrl+B/I). UI tach span theo vung chon, dat data-bold/italic-override; commit gui override tung doan (RichSegDto bold/italic). Engine: bang style rich key theo (run nguon, override) - doi bien the thi lay font BIEN THE THAT cung ho (fontmatch -> builtin -> substitute), khong dung lai font goc. Test: rich_seg_bold_italic_override_uses_variant_font. 3) Edit file OCR (scan + text an): khoi toan run render-mode INVISIBLE -> ve rect TRANG che vung chu cu tren anh + ve text moi HIEN mau den (ca 4 duong ve: rich chinh/fallback tu, 1-style chinh/fallback). Test: ocr_invisible_block_becomes_visible_with_cover. 4) Bu metrics kieu Adobe Sans MM trong o sua: span mang data-pdfw (be rong that tren trang); fitEditLinesToPdf them pass letter-spacing de moi nhom style chiem DUNG quang goc khi font thay the lech metrics (>2%); kep +/-18% co chu. 5) Khoi dong het "do": cua so tao AN (visible:false), UI show() ngay khi frontend san sang + man splash che phan nap dau; luoi an toan Rust hien cua so sau 4s neu JS chet som. 6) Open with FoFreeXit.exe: co che argv (initial_file) van hoat dong - loi nam o registry Applications tro exe CU (ban portable bi di chuyen/ghi de) lam Windows hien lai hop chon app. Fix tu chua: moi lan khoi dong dang ky lai HKCU (Applications command + ProgID FoFreeXit.pdf + OpenWithProgids .pdf) tro exe hien tai, chay nen qua reg.exe. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>	2026-08-10 16:44:06 +07:00
adminandClaude Fable 5	f77092bff2	fontfix: va subset PDF cho FontFace - them OS/2 + cmap (3,1) format 4 tu /ToUnicode ... Build 34 tra bytes font tho nhung OTS cua WebView tu choi het (bat qua CDP Log): (1) "OS/2: missing required table", (2) "cmap: no supported subtables" - subset LibreOffice chi co cmap (1,0) format 0, ma tuy bien: ASCII giu nguyen ma, chu Viet co dau gan ma thap 1-31 (chi /ToUnicode giai nghia duoc). - fontfix.rs: dung OS/2 v4 (96B) tu head/hhea + co dam/nghieng cua run (fsSelection/usWeightClass - khong bi synthesize bold chong); convert cmap (1,0) fmt 0/6 -> (3,1) format 4 (segment gop cap lien tiep, moi glyph 1 segment khi roi rac); ghep lai sfnt: danh muc sort theo tag, pad 4B, checksum bang + head.checkSumAdjustment (tong = B1B0AFBA); tag 'true' -> 0x00010000. Khong phai sfnt (CFF tran) tra nguyen trang. - tounicode.rs: doc /ToUnicode qua lopdf (bfchar/bfrange ca 2 dang, UTF-16BE ke ca surrogate pair; ligature nhieu ky tu bo qua), match BaseFont theo suffix sau prefix subset "ABCDEF+", tim ca trong resources cua Form XObject (sau 3) cho file Canva. Ma khong co ToUnicode: ASCII identity + MacRoman cho ma cao; ma thap khong giai nghia duoc thi bo (ky tu roi xuong font ke trong stack CSS). Kiem chung truoc CI: nhan ban logic sang Node, va bytes THAT cua NotoSansMono-Bold subset (dump tu app) -> FontFace load OK trong WebView2 that (truoc: SyntaxError). Unit test: OS/2 + checksum + format 4 lookup ('A' giu glyph, 'a?' theo ToUnicode) + bfchar/bfrange parser. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>	2026-08-10 11:32:17 +07:00