layout: fix float exclusion of other floats

> The right outer edge of a left-floating box may not be to the right
> of the left outer edge of any right-floating box that is next to
> it. Analogous rules hold for right-floating elements.

says the standard

therefore it does not really matter where the beginning of the float is;
if it's float: left, then `left' must be set to the right edge, and if
it's float: right, then `right' must be set to the left edge.

(this was breaking some negative margin float abominations such that
floats were suddenly overlapping and that's certainly not what we want)

1 files changed, 2 insertions, 2 deletions

diff --git a/src/layout/engine.nim b/src/layout/engine.nim
index 7e65bac6..28ade1c5 100644
--- a/src/layout/engine.nim
+++ b/src/layout/engine.nim
@@ -1229,9 +1229,9 @@ func findNextFloatOffset(bctx: BlockContext, offset: Offset, size: Size,
       let ey2 = ex.offset.y + ex.size.h
       if cy2 >= ex.offset.y and y < ey2:
         let ex2 = ex.offset.x + ex.size.w
-        if left + size.w >= ex.offset.x and left < ex2:
+        if ex.t == FLOAT_LEFT and left < ex2:
           left = ex2
-        if right + size.w > ex.offset.x and right <= ex2:
+        if ex.t == FLOAT_RIGHT and right > ex.offset.x:
           right = ex.offset.x
         miny = min(ey2, miny)
     if right - left >= size.w or miny == high(LayoutUnit):