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feat: add live font preview pane to font selection screen (#2349)

Browse Source 
## Summary
* Adds a live font preview pane to the font selection screen so users
can see how a font looks before committing to it.
* Changes
* A preview pane occupying the top 30% of the font selection screen,
rendering sample pangram text in the previewed font
* A two-step confirm flow: first press (enter button) previews the font,
second press selects it
* Back restores the original font settings, so browsing has no side
effects
* Layout dimensions cached in `onEnter()` to avoid redundant
recalculation between `loop()` and `render()`

## Additional Context
* Preview sample text is hardcoded English; didn't want to use AI for
translation as I would not be able to verify the output in most
languages...
* The preview pane reduces visible list height; this is compensated by
passing the reserved height into `getNumberOfItemsPerPage`

---
### AI Usage
Did you use AI tools to help write this code? **PARTIALLY**
AI use for assisting in coding and in writing the PR description.
This commit is contained in:
Paul Delestrac
2026-06-18 18:16:28 -04:00
committed by GitHub
parent 5e990b3991
commit b1131795d8
31 changed files with 176 additions and 41 deletions
Download Patch File Download Diff File Expand all files Collapse all files
lib/I18n/translations/belarusian.yaml
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@@ -70,6 +70,7 @@ STR_ORIENTATION: "Арыентацыя чытання"
STR_SIDE_BTN_LAYOUT: "Бакавыя кнопкі"
STR_FRONT_BTN_FOLLOW_ORIENTATION: "Арыентаваць пярэднія кнопкі"
STR_LONG_PRESS_SKIP: "Доўгае націсканне - змена раздзела"
STR_FONT_PREVIEW_TEXT: "У Іўі худы жвавы чорт у зялёнай камізэльцы пабег пад'есці фаршу з юшкай"
STR_FONT_FAMILY: "Шрыфт чытання"
STR_FONT_SIZE: "Памер шрыфту інтэрфейсу"
STR_LINE_SPACING: "Міжрадковы інтэрвал"
lib/I18n/translations/catalan.yaml
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@@ -338,6 +338,7 @@ STR_MANAGE_FONTS: "Gestiona els tipus de lletra"
STR_FONT_BROWSER: "Navegador de tipus de lletra"
STR_LOADING_FONT_LIST: "S'està carregant la llista de tipus de lletra..."
STR_NO_FONTS_AVAILABLE: "No hi ha tipus de lletra disponibles"
STR_FONT_PREVIEW_TEXT: "Jove xef, porti whisky amb quinze glaçons d'hidrogen, coi!"
STR_FONT_INSTALLED: "Tipus de lletra instal·lat!"
STR_FONT_INSTALL_FAILED: "Ha fallat la instal·lació del tipus de lletra"
STR_INSTALLED: "Instal·lat"
lib/I18n/translations/czech.yaml
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@@ -73,6 +73,7 @@ STR_LONG_PRESS_BEHAVIOR: "Chování při dlouhém stisknutí tlačítka"
STR_LONG_PRESS_BEHAVIOR_OFF: "VYP"
STR_LONG_PRESS_BEHAVIOR_SKIP: "Přeskočení kapitoly"
STR_LONG_PRESS_BEHAVIOR_ORIENTATION: "Změna orientace"
STR_FONT_PREVIEW_TEXT: "Příliš žluťoučký kůň úpěl ďábelské ódy"
STR_FONT_FAMILY: "Rodina písem čtečky"
STR_FONT_SIZE: "Velikost písma rozhraní"
STR_LINE_SPACING: "Řádkování čtečky"
lib/I18n/translations/danish.yaml
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@@ -77,6 +77,7 @@ STR_LONG_PRESS_BEHAVIOR: "Comportamiento al mantener pulsado el botón"
STR_LONG_PRESS_BEHAVIOR_OFF: "Desactivado"
STR_LONG_PRESS_BEHAVIOR_SKIP: "Saltar capítulo"
STR_LONG_PRESS_BEHAVIOR_ORIENTATION: "Cambio de orientación"
STR_FONT_PREVIEW_TEXT: "Høj bly gom vandt fræk sexquiz på wc"
STR_FONT_FAMILY: "Læser skrifttype"
STR_FONT_SIZE: "Læser skriftstørrelse"
STR_LINE_SPACING: "Linjeafstand"
lib/I18n/translations/dutch.yaml
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@@ -77,6 +77,7 @@ STR_LONG_PRESS_BEHAVIOR: "Long-press button behavior"
STR_LONG_PRESS_BEHAVIOR_OFF: "OFF"
STR_LONG_PRESS_BEHAVIOR_SKIP: "Chapter skip"
STR_LONG_PRESS_BEHAVIOR_ORIENTATION: "Orientation change"
STR_FONT_PREVIEW_TEXT: "Pa's wijze lynx bezag vroom het fikse aquaduct"
STR_FONT_FAMILY: "Lettertype lezer"
STR_FONT_SIZE: "Lettergrootte lezer"
STR_LINE_SPACING: "Regelafstand lezer"
lib/I18n/translations/english.yaml
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@@ -79,6 +79,7 @@ STR_LONG_PRESS_BEHAVIOR_OFF: "OFF"
STR_LONG_PRESS_BEHAVIOR_SKIP: "Chapter skip"
STR_LONG_PRESS_BEHAVIOR_ORIENTATION: "Orientation change"
STR_LONG_PRESS_MENU: "Long-press Menu"
STR_FONT_PREVIEW_TEXT: "The quick brown fox jumps over the lazy dog"
STR_FONT_FAMILY: "Reader Font Family"
STR_FONT_SIZE: "Reader Font Size"
STR_LINE_SPACING: "Reader Line Spacing"
lib/I18n/translations/finnish.yaml
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@@ -73,6 +73,7 @@ STR_LONG_PRESS_BEHAVIOR: "Long-press button behavior"
STR_LONG_PRESS_BEHAVIOR_OFF: "OFF"
STR_LONG_PRESS_BEHAVIOR_SKIP: "Chapter skip"
STR_LONG_PRESS_BEHAVIOR_ORIENTATION: "Orientation change"
STR_FONT_PREVIEW_TEXT: "Törkylempijävongahdus"
STR_FONT_FAMILY: "Lukijan fonttiperhe"
STR_FONT_SIZE: "Käyttöliittymän fonttikoko"
STR_LINE_SPACING: "Lukijan riviväli"
lib/I18n/translations/french.yaml
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@@ -77,6 +77,7 @@ STR_LONG_PRESS_BEHAVIOR: "Comportement lors d'un appui long"
STR_LONG_PRESS_BEHAVIOR_OFF: "Désactivé"
STR_LONG_PRESS_BEHAVIOR_SKIP: "Saut de chapitre"
STR_LONG_PRESS_BEHAVIOR_ORIENTATION: "Changement d'orientation"
STR_FONT_PREVIEW_TEXT: "Portez ce vieux whisky au juge blond qui fume"
STR_FONT_FAMILY: "Police de caractères du lecteur"
STR_FONT_SIZE: "Taille police lecteur"
STR_LINE_SPACING: "Interligne"
lib/I18n/translations/german.yaml
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@@ -73,6 +73,7 @@ STR_LONG_PRESS_BEHAVIOR: "Verhalten bei langem Tastendruck"
STR_LONG_PRESS_BEHAVIOR_OFF: "AUS"
STR_LONG_PRESS_BEHAVIOR_SKIP: "Kapitel überspringen"
STR_LONG_PRESS_BEHAVIOR_ORIENTATION: "Ausrichtung ändern"
STR_FONT_PREVIEW_TEXT: "Victor jagt zwölf Boxkämpfer quer über den großen Sylter Deich"
STR_FONT_FAMILY: "Lese-Schriftfamilie"
STR_FONT_SIZE: "Schriftgröße"
STR_LINE_SPACING: "Lese-Zeilenabstand"
lib/I18n/translations/hebrew.yaml
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@@ -77,6 +77,7 @@ STR_LONG_PRESS_BEHAVIOR: "פעולת לחיצה ארוכה"
STR_LONG_PRESS_BEHAVIOR_OFF: "כבוי"
STR_LONG_PRESS_BEHAVIOR_SKIP: "דלג פרק"
STR_LONG_PRESS_BEHAVIOR_ORIENTATION: "שנה כיוון מסך"
STR_FONT_PREVIEW_TEXT: "דג סקרן שט בים מאוכזב ולפתע מצא חברה"
STR_FONT_FAMILY: "גופן הקריאה"
STR_FONT_SIZE: "גודל גופן"
STR_LINE_SPACING: "מרווח בין שורות"
lib/I18n/translations/hungarian.yaml
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@@ -74,6 +74,7 @@ STR_ORIENTATION: "Olvasási irány"
STR_SIDE_BTN_LAYOUT: "Oldalsó gomb elrendezés (olvasó)"
STR_FRONT_BTN_FOLLOW_ORIENTATION: "Elülső gombok tájolása"
STR_LONG_PRESS_SKIP: "Hosszú nyomás - fejezet ugrás"
STR_FONT_PREVIEW_TEXT: "Egy hűtlen vejét fülöncsípő, dühös mexikói úr Wesselényinél mázol Quitóban"
STR_FONT_FAMILY: "Olvasó betűkészlet"
STR_FONT_SIZE: "Olvasó betűméret"
STR_LINE_SPACING: "Olvasó sorköz"
lib/I18n/translations/italian.yaml
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@@ -77,6 +77,7 @@ STR_LONG_PRESS_BEHAVIOR: "Press. lunga pul. laterali"
STR_LONG_PRESS_BEHAVIOR_OFF: "OFF"
STR_LONG_PRESS_BEHAVIOR_SKIP: "Salta capitolo"
STR_LONG_PRESS_BEHAVIOR_ORIENTATION: "Orientamento"
STR_FONT_PREVIEW_TEXT: "Pranzo d'acqua fa volti sghembi"
STR_FONT_FAMILY: "Font lettore"
STR_FONT_SIZE: "Dimensione font"
STR_LINE_SPACING: "Interlinea lettore"
@@ -375,4 +376,4 @@ STR_CLOCK_SYNC_NO_WIFI: "Wi-Fi non connesso"
STR_HOLD_CONFIRM_TO_DELETE: "Tieni premuto Conferma per cancellare"
STR_NEXT_FIELD: "Succ."
STR_CURRENT_TIME: "Ora attuale: "
STR_DISABLED: "Disattivato"
STR_DISABLED: "Disattivato"
lib/I18n/translations/kazakh.yaml
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@@ -69,6 +69,7 @@ STR_ORIENTATION: "Оқу бағдары"
STR_SIDE_BTN_LAYOUT: "Бүйірлік түймелер орналасуы (оқырман)"
STR_FRONT_BTN_FOLLOW_ORIENTATION: "Алдыңғы түймелерді бағдарлау"
STR_LONG_PRESS_SKIP: "Ұзақ басу арқылы тарау өткізу"
STR_FONT_PREVIEW_TEXT: "Канагаттандырылмагандыктарыныздан"
STR_FONT_FAMILY: "Оқырман қаріп тобы"
STR_FONT_SIZE: "Интерфейс қаріп өлшемі"
STR_LINE_SPACING: "Оқырман жол аралығы"
lib/I18n/translations/lithuanian.yaml
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@@ -74,6 +74,7 @@ STR_ORIENTATION: "Orientacija"
STR_SIDE_BTN_LAYOUT: "Šoniniai mygtukai"
STR_FRONT_BTN_FOLLOW_ORIENTATION: "Orientuoti priekinius mygtukus"
STR_LONG_PRESS_SKIP: "Praleisti skyrių (ilgai)"
STR_FONT_PREVIEW_TEXT: "Įlinkdama fechtuotojo špaga sublykčiojusi pragręžė apvalų arbūzą"
STR_FONT_FAMILY: "Šriftas"
STR_FONT_SIZE: "Šrifto dydis"
STR_LINE_SPACING: "Tarpai tarp eilučių"
lib/I18n/translations/polish.yaml
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@@ -77,6 +77,7 @@ STR_LONG_PRESS_BEHAVIOR: "Funkcja długiego przyciśnięcia"
STR_LONG_PRESS_BEHAVIOR_OFF: "Wył."
STR_LONG_PRESS_BEHAVIOR_SKIP: "Przeskocz rozdział"
STR_LONG_PRESS_BEHAVIOR_ORIENTATION: "Orientacja ekranu"
STR_FONT_PREVIEW_TEXT: "Pchnąć w tę łódź jeża lub ośm skrzyń fig"
STR_FONT_FAMILY: "Czcionka"
STR_FONT_SIZE: "Rozmiar czcionki"
STR_LINE_SPACING: "Odstępy między wierszami"
lib/I18n/translations/portuguese.yaml
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@@ -73,6 +73,7 @@ STR_LONG_PRESS_BEHAVIOR: "Comportamento do botão de premir e segurar"
STR_LONG_PRESS_BEHAVIOR_OFF: "Desligado"
STR_LONG_PRESS_BEHAVIOR_SKIP: "Saltar capítulo"
STR_LONG_PRESS_BEHAVIOR_ORIENTATION: "Alterar orientação"
STR_FONT_PREVIEW_TEXT: "Vejo galã sexy pôr quinze kiwis à força em baú achatado"
STR_FONT_FAMILY: "Fonte do leitor"
STR_FONT_SIZE: "Tam. fonte UI"
STR_LINE_SPACING: "Espaçamento entre linhas"
lib/I18n/translations/romanian.yaml
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@@ -77,6 +77,7 @@ STR_LONG_PRESS_BEHAVIOR: "Comportament buton apăsat lung"
STR_LONG_PRESS_BEHAVIOR_OFF: "Dezactivat"
STR_LONG_PRESS_BEHAVIOR_SKIP: "Sărire capitol"
STR_LONG_PRESS_BEHAVIOR_ORIENTATION: "Schimbă orientarea"
STR_FONT_PREVIEW_TEXT: "Încă vând gem, whisky bej și tequila roz, preț fix"
STR_FONT_FAMILY: "Familie font lectură"
STR_FONT_SIZE: "Dimensiune font"
STR_LINE_SPACING: "Spaţiere între rânduri"
lib/I18n/translations/russian.yaml
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@@ -78,6 +78,7 @@ STR_LONG_PRESS_BEHAVIOR: "Долгое нажатие"
STR_LONG_PRESS_BEHAVIOR_OFF: "Ничего"
STR_LONG_PRESS_BEHAVIOR_SKIP: "Пропуск главы"
STR_LONG_PRESS_BEHAVIOR_ORIENTATION: "Изменить ориентацию"
STR_FONT_PREVIEW_TEXT: "Съешь ещё этих мягких французских булок, да выпей же чаю"
STR_FONT_FAMILY: "Шрифт чтения"
STR_FONT_SIZE: "Размер шрифта интерфейса"
STR_LINE_SPACING: "Межстрочный интервал"
lib/I18n/translations/slovak.yaml
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@@ -78,6 +78,7 @@ STR_LONG_PRESS_BEHAVIOR: "Správanie pri dlhom stlačení tlačidla"
STR_LONG_PRESS_BEHAVIOR_OFF: "VYP"
STR_LONG_PRESS_BEHAVIOR_SKIP: "Preskočiť kapitolu"
STR_LONG_PRESS_BEHAVIOR_ORIENTATION: "Zmeniť orientáciu"
STR_FONT_PREVIEW_TEXT: "Vypätá dcéra grófa Maxwella s IQ nižším ako kôň núti čeľaď hrýzť hŕbu jabĺk"
STR_FONT_FAMILY: "Rodina písiem čítačky"
STR_FONT_SIZE: "Veľkosť písma rozhrania"
STR_LINE_SPACING: "Riadkovanie čítačky"
lib/I18n/translations/slovenian.yaml
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@@ -74,6 +74,7 @@ STR_ORIENTATION: "Orientacija branja"
STR_SIDE_BTN_LAYOUT: "Razpored stranskih gumbov"
STR_FRONT_BTN_FOLLOW_ORIENTATION: "Usmeri sprednje gumbe"
STR_LONG_PRESS_SKIP: "Dolgi pritisk za preskok poglavja"
STR_FONT_PREVIEW_TEXT: "V kožuščku hudobnega fanta stopiclja mizar"
STR_FONT_FAMILY: "Pisava bralnika"
STR_FONT_SIZE: "Velikost pisave"
STR_LINE_SPACING: "Razmik med vrsticami"
lib/I18n/translations/spanish.yaml
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@@ -77,6 +77,7 @@ STR_LONG_PRESS_BEHAVIOR: "Al mantener pulsado un botón"
STR_LONG_PRESS_BEHAVIOR_OFF: "No hacer nada"
STR_LONG_PRESS_BEHAVIOR_SKIP: "Saltar capítulo"
STR_LONG_PRESS_BEHAVIOR_ORIENTATION: "Cambiar orient."
STR_FONT_PREVIEW_TEXT: "Benjamín pidió una bebida de kiwi y fresa. Noé, sin vergüenza, la más exquisita champaña del menú"
STR_FONT_FAMILY: "Tipografía"
STR_FONT_SIZE: "Tamaño"
STR_LINE_SPACING: "Interlineado"
lib/I18n/translations/swedish.yaml
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@@ -78,6 +78,7 @@ STR_LONG_PRESS_BEHAVIOR: "Beteende vid lång knapptryckning"
STR_LONG_PRESS_BEHAVIOR_OFF: "AV"
STR_LONG_PRESS_BEHAVIOR_SKIP: "Hoppa över kapitel"
STR_LONG_PRESS_BEHAVIOR_ORIENTATION: "Ändra orientering"
STR_FONT_PREVIEW_TEXT: "Flygande bäckasiner söka hwila på mjuka tuvor"
STR_FONT_FAMILY: "Eboksläsarens typsnittsfamilj"
STR_FONT_SIZE: "Eboksläsarens typsnittsstorlek"
STR_LINE_SPACING: "Eboksläsarens linjemellanrum"
lib/I18n/translations/turkish.yaml
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@@ -72,6 +72,7 @@ STR_LONG_PRESS_BEHAVIOR: "Long-press button behavior"
STR_LONG_PRESS_BEHAVIOR_OFF: "OFF"
STR_LONG_PRESS_BEHAVIOR_SKIP: "Chapter skip"
STR_LONG_PRESS_BEHAVIOR_ORIENTATION: "Orientation change"
STR_FONT_PREVIEW_TEXT: "Pijamalı hasta yağız şoföre çabucak güvendi"
STR_FONT_FAMILY: "Okuyucu Yazı Tipi Ailesi"
STR_FONT_SIZE: "Arayüz Yazı Boyutu"
STR_LINE_SPACING: "Okuyucu Satır Aralığı"
lib/I18n/translations/ukrainian.yaml
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@@ -78,6 +78,7 @@ STR_LONG_PRESS_BEHAVIOR: "Поведінка при довгому настик
STR_LONG_PRESS_BEHAVIOR_OFF: "Немає"
STR_LONG_PRESS_BEHAVIOR_SKIP: "Наступ. розділ (утримув.)"
STR_LONG_PRESS_BEHAVIOR_ORIENTATION: "Зміна орієнтації екрану"
STR_FONT_PREVIEW_TEXT: "Єхидна, ґава, їжак ще й шиплячі плазуни бігцем форсують Янцзи"
STR_FONT_FAMILY: "Шрифт"
STR_FONT_SIZE: "Розмір шрифту"
STR_LINE_SPACING: "Міжрядковий інтервал"
lib/I18n/translations/valencian.yaml
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@@ -78,6 +78,7 @@ STR_LONG_PRESS_BEHAVIOR: "Comportament de prémer llargament el botó"
STR_LONG_PRESS_BEHAVIOR_OFF: "Desactivat"
STR_LONG_PRESS_BEHAVIOR_SKIP: "Saltar capítols"
STR_LONG_PRESS_BEHAVIOR_ORIENTATION: "Canvi d'orientació"
STR_FONT_PREVIEW_TEXT: "Jove xef, porti whisky amb quinze glaçons d'hidrogen, coi!"
STR_FONT_FAMILY: "Família de fonts"
STR_FONT_SIZE: "Grandària de la lletra (UI)"
STR_LINE_SPACING: "Interlineat del lector"
lib/I18n/translations/vietnamese.yaml
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@@ -78,6 +78,7 @@ STR_LONG_PRESS_BEHAVIOR: "Hành vi nhấn giữ nút"
STR_LONG_PRESS_BEHAVIOR_OFF: "TẮT"
STR_LONG_PRESS_BEHAVIOR_SKIP: "Nhảy chương"
STR_LONG_PRESS_BEHAVIOR_ORIENTATION: "Đổi hướng"
STR_FONT_PREVIEW_TEXT: "Trường quê em do bố của em xây kĩ nên sạch và đẹp lắm"
STR_FONT_FAMILY: "Phông chữ trình đọc"
STR_FONT_SIZE: "Cỡ chữ trình đọc"
STR_LINE_SPACING: "Giãn dòng trình đọc"