refactor: unify card no-data face and fluid sizing

Extract card.notice so every cached card's no-data state is one fluid,
theme-consistent face instead of a copy per widget, and delete the
fixed-size card.label it replaces.

Derive weather's arc geometry from its band (pad, curve room, sun dot,
time labels) instead of fixed pixels, and cap the arc at a proportion of
the card's width rather than 240px.

Derive disks' bar-fallback height and its address type from the card's
own label scale.

Standardise the big-value factor to 1.0 across the fit_unit cards and
document the big-value colour rule and the disks headline exception.

1 files changed, 2 insertions, 14 deletions

diff --git a/widgets/slackware.lua b/widgets/slackware.lua
index 709438d..f9afb70 100644
--- a/widgets/slackware.lua
+++ b/widgets/slackware.lua
@@ -33,26 +33,14 @@ end
 function M.draw(cr, rect, colors)
   local inner = card.card(cr, rect, colors)
   local function clamp(v, lo, hi) return math.max(lo, math.min(hi, v)) end
-  local LABEL_F, BIG_F, ROW_F = 0.30, 0.85, 0.32
+  local LABEL_F, BIG_F, ROW_F = 0.30, 1.0, 0.32
 
   local kv = data.kv_parse(data.slurp(CACHE) or '')
 
   -- No cache at all: the sampler has not run. Name it, as the cache card does,
   -- rather than leaving a blank cell that is indistinguishable from a crash.
   if not kv.version then
-    local S = clamp(inner.h * 0.94 / (1.78 + 2 * 0.72), 10, 72)
-    S = math.min(S, card.fit_unit(cr, inner.w * 0.96, {
-      { { 'SLACKWARE', card.FONT_MONO, LABEL_F } },
-      { { 'no slackware data', card.FONT_UI, 0.36 } },
-      { { 'bin/slackware-sample.sh', card.FONT_MONO, ROW_F } },
-    }, 100))
-    card.font(cr, card.FONT_MONO, S * LABEL_F, false)
-    card.rgba(cr, colors.label)
-    card.text(cr, inner.x, inner.y + S * LABEL_F, 'SLACKWARE')
-    card.font(cr, card.FONT_UI, S * 0.36, true)
-    card.text(cr, inner.x, inner.y + S + S * LABEL_F * 2.6, 'no slackware data')
-    card.font(cr, card.FONT_MONO, S * ROW_F, false)
-    card.text(cr, inner.x, inner.y + S + S * LABEL_F * 2.6 + S * 0.72,
+    card.notice(cr, inner, colors, 'SLACKWARE', 'no slackware data',
       'bin/slackware-sample.sh')
     return
   end