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| author | Danilo M. <danix@danix.xyz> | 2026-10-07 11:01:27 +0200 |
|---|---|---|
| committer | Danilo M. <danix@danix.xyz> | 2026-10-07 11:01:27 +0200 |
| commit | b2fe3f493efc12dd300f0e2b2ede5660ee70c193 (patch) | |
| tree | dde01586d60f2b4a7d3ff21a3e9d90b6bb97c86e /test/test_data.lua | |
| parent | 1b1a697102176c955d497a02143a5d9ecd45b718 (diff) | |
| download | conky-theme-udt-b2fe3f493efc12dd300f0e2b2ede5660ee70c193.tar.gz conky-theme-udt-b2fe3f493efc12dd300f0e2b2ede5660ee70c193.zip | |
Cairo's toy text API binds one face with no per-glyph fallback, so an
emoji in a calendar event title rendered as a box in Noto Sans.
text/measure/advance now split strings into runs and draw emoji runs
(U+1F000-1FAFF, U+2600-27BF) in monochrome Noto Emoji, restoring the
caller's face afterwards. Nerd Font PUA icons stay in FONT_MONO.
Plain strings and invalid UTF-8 take the old single-call path.
No shaping: ZWJ sequences and flags draw as their parts. Pango via
lgi (built for Lua 5.4) is the upgrade path.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Diffstat (limited to 'test/test_data.lua')
| -rw-r--r-- | test/test_data.lua | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/test/test_data.lua b/test/test_data.lua index ec2b6ed..549ce40 100644 --- a/test/test_data.lua +++ b/test/test_data.lua @@ -505,3 +505,19 @@ assert(gate(100.0) == true, 'gate: first call opens') assert(gate(100.5) == false, 'gate: closed inside the interval') assert(gate(101.95) == true, 'gate: opens after it') assert(gate(102.0) == false, 'gate: interval restarts from the last open') + +-- Emoji fall back to card.FONT_EMOJI: the toy API has no per-glyph fallback, +-- so without the run split "x🦷" measured a tofu box in Noto Sans. +do + local s = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, 10, 10) + local cr = cairo_create(s) + card.font(cr, 'Noto Emoji', 20, false) + local tooth = card.advance(cr, '🦷') + card.font(cr, card.FONT_UI, 20, false) + local x = card.advance(cr, 'x') + assert(math.abs(card.advance(cr, 'x🦷') - (x + tooth)) < 0.01, 'emoji run uses FONT_EMOJI') + assert(card.advance(cr, 'x') == x, 'caller face restored after an emoji run') + assert(pcall(card.advance, cr, '\240\159'), 'invalid UTF-8 must not raise') + cairo_destroy(cr) + cairo_surface_destroy(s) +end |