The wrap loop used to memcpy a growing substring and call getTextWidth
on it for every appended codepoint — O(n²) UTF-8 decoding with Lemon
font, ~5-20 ms on a full e-ink redraw of a long message.
Add DisplayDriver::getCodepointWidth(cp) (default: build a UTF-8 buffer
and forward to getTextWidth) plus DisplayDriver::decodeCodepoint() as
the shared UTF-8 walker. Override getCodepointWidth in GxEPDDisplay
(direct lemonXAdvance for Lemon size 1) and SH1106Display (lemonXAdvance
for Lemon, fixed 6*sz for built-in font). FullscreenMsgView now walks
codepoints once and sums widths incrementally.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Add lineStep(), headerH(), listStart(), listVisible(), valCol() to
DisplayDriver so layout derives from getLineHeight() instead of fixed
OLED constants. Refactor all screens (SettingsScreen, NearbyScreen,
FullscreenMsgView, QuickMsgScreen, BotScreen, DashboardConfigScreen,
AutoAdvertScreen, RingtoneEditorScreen) and all HomeScreen pages plus
the lock screen and splash screen in UITask.cpp.
On OLED (lh=8) positions are unchanged; on landscape e-ink (lh=16) all
text and widgets now scale correctly to the 250×122 display.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- Add Lemon font (LemonFont.h, LemonIcons.h) to the standard build
alongside the Adafruit built-in font; ~101 KB added to flash
- SH1106Display: add _use_lemon flag + setLemonFont(bool) to switch
at runtime; print() and getTextWidth() use Lemon path when active;
translateUTF8ToBlocks() passes UTF-8 through unchanged (Lemon supports
full Unicode U+0020-U+04FF) vs transliterating for the default font
- DisplayDriver: add getCharWidth()/getLineHeight() virtuals (defaults 6/8);
SH1106Display returns 5/9 for Lemon, 6/8 for default; add setLemonFont()
no-op virtual; fix orphaned UTF-8 leading byte in drawTextEllipsized
- FullscreenMsgView: replace fixed-char-count word-wrap with pixel-accurate
wrap using display.getTextWidth(); use getLineHeight() for spacing so
Lemon (9 px) and default (8 px) both render correctly
- NodePrefs: add use_lemon_font field (0=default, 1=Lemon)
- SettingsScreen: add "Font" item in Display section (Default / Lemon),
calls UITask::applyFont() on change
- UITask: add applyFont() that calls display->setLemonFont(use_lemon_font);
called at startup (begin()) and when the setting changes
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- Reply prefix changed to "@[nick] " format — bracket delimiter handles
nicks with spaces unambiguously
- FullscreenMsgView: parse "@[nick] body" to show "To: nick" header;
fall back gracefully if format not matched
- Reduce FS_CHARS 21→20 to prevent scroll arrows overlapping last char
- Transliterate nick before displaying in "To:" header and "RE:" title
so non-ASCII characters render correctly on the OLED font
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Long-press Enter (KEY_CONTEXT_MENU) on a selected message shows an
'Options / Reply' popup in both list and fullscreen views. Confirming
opens MSG_PICK with 'RE: nick' title — the reply can be sent via
keyboard or quick message templates, both automatically prefixed with
'@nick '.
- Channel: reply prefix extracted from 'sender: message' format
- DM: reply available only on incoming messages, uses contact name
- FullscreenMsgView: REPLY added to Result enum, KEY_CONTEXT_MENU handled
- MSG_PICK: _reply_mode flag routes prefix through keyboard and templates
- Guard: prevent sending empty reply (prefix-only keyboard input ignored)
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
When a message starts with @nick, the fullscreen view expands the header
to show a second row 'To: nick' below the sender name, and displays the
message body without the @nick prefix.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Static screens (SettingsScreen, BotScreen, FullscreenMsgView, message
list, contact picker) were re-rendering every 300ms with no visible
benefit. New messages still trigger immediate refresh via newMsg() →
_next_refresh=100, so responsiveness is unchanged. Reduces unnecessary
SPI transfers and CPU wakeups ~6x on idle static screens.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Text lines fill the full display width, causing the last chars to bleed
into the scroll arrow area. Draw a DARK fillRect behind each arrow before
rendering it, so the arrow appears on a clean black background without
truncating the text width.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- with_sender[160] could hold only ~160 chars but node_name(32) +
expanded(200) needs up to 234; snprintf would silently truncate
the UI display entry. Increased to 240.
- FS_LINE_H was 9 but Adafruit 5x7 font line height is 8, wasting
1px per line and showing 5 lines instead of 6.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Raw UTF-8 message body was passed directly to display.print(), rendering
Polish and other accented chars as garbage on the Adafruit font.
Transliterating before wrapLines also fixes byte-count wrapping for
multi-byte UTF-8 characters.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- Swap left/right navigation in fullscreen view: left=newer, right=older
- Update arrow indicators to match new direction
- Remove # prefix from channel name in message and compose view titles
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Shared struct handles rendering and input for both DM and channel fullscreen
views, replacing ~80 lines of duplicated inline code. Fixes navigation arrow
indicators being swapped in channel fullscreen.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
