Add 'users/glittershark/xanthous/' from commit '53b56744f4335c038724a1bcffc27a7eb8cf6a6d' r/978

git-subtree-dir: users/glittershark/xanthous
git-subtree-mainline: 91f53f02d8479303910abfd3f3690d3ef27e6c4b
git-subtree-split: 53b56744f4335c038724a1bcffc27a7eb8cf6a6d

1 files changed, 31 insertions, 0 deletions

diff --git a/users/glittershark/xanthous/src/Xanthous/Entities/Draw/Util.hs b/users/glittershark/xanthous/src/Xanthous/Entities/Draw/Util.hs
new file mode 100644
index 0000000000..aa6c5fa4fc
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+++ b/users/glittershark/xanthous/src/Xanthous/Entities/Draw/Util.hs
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+module Xanthous.Entities.Draw.Util where
+--------------------------------------------------------------------------------
+import Xanthous.Prelude
+--------------------------------------------------------------------------------
+import Brick.Widgets.Border.Style
+import Brick.Types (Edges(..))
+--------------------------------------------------------------------------------
+
+borderFromEdges :: BorderStyle -> Edges Bool -> Char
+borderFromEdges bstyle edges = ($ bstyle) $ case edges of
+  Edges False False  False False -> const '☐'
+
+  Edges True  False  False False -> bsVertical
+  Edges False True   False False -> bsVertical
+  Edges False False  True  False -> bsHorizontal
+  Edges False False  False True  -> bsHorizontal
+
+  Edges True  True   False False -> bsVertical
+  Edges True  False  True  False -> bsCornerBR
+  Edges True  False  False True  -> bsCornerBL
+
+  Edges False True   True  False -> bsCornerTR
+  Edges False True   False True  -> bsCornerTL
+  Edges False False  True  True  -> bsHorizontal
+
+  Edges False True   True  True  -> bsIntersectT
+  Edges True  False  True  True  -> bsIntersectB
+  Edges True  True   False True  -> bsIntersectL
+  Edges True  True   True  False -> bsIntersectR
+
+  Edges True  True   True  True  -> bsIntersectFull