px: convert to float first for percentage values

px now converts to float64 before converting back to a layout unit
when calculating percentage values.
This should reduce overflow crashes somewhat.

(The real solution would be to not crash on overflow, but that's a
little more difficult problem to solve.)

1 files changed, 1 insertions, 1 deletions

diff --git a/src/css/values.nim b/src/css/values.nim
index cd27ce98..aa9feba0 100644
--- a/src/css/values.nim
+++ b/src/css/values.nim
@@ -408,7 +408,7 @@ func px*(l: CSSLength, window: WindowAttributes, p: LayoutUnit): LayoutUnit {.in
   of UNIT_CH: ch_to_px(l.num, window)
   of UNIT_IC: ic_to_px(l.num, window)
   of UNIT_EX: ex_to_px(l.num, window)
-  of UNIT_PERC: p * l.num / 100
+  of UNIT_PERC: toLayoutUnit(toFloat64(p) * l.num / 100)
   of UNIT_PX: toLayoutUnit(l.num)
   of UNIT_CM: toLayoutUnit(l.num * 37.8)
   of UNIT_MM: toLayoutUnit(l.num * 3.78)