{-# OPTIONS_HADDOCK ignore-exports#-}
{-# LANGUAGE DataKinds                  #-}
{-# LANGUAGE GeneralizedNewtypeDeriving #-}
{-# LANGUAGE PatternSynonyms            #-}
{-# LANGUAGE Strict                     #-}
module Graphics.Vulkan.Types.Enum.PolygonMode
       (VkPolygonMode(VkPolygonMode, VK_POLYGON_MODE_FILL,
                      VK_POLYGON_MODE_LINE, VK_POLYGON_MODE_POINT))
       where
import Foreign.Storable                (Storable)
import GHC.Read                        (choose, expectP)
import Graphics.Vulkan.Marshal         (Int32)
import Text.ParserCombinators.ReadPrec (prec, step, (+++))
import Text.Read                       (Read (..), parens)
import Text.Read.Lex                   (Lexeme (..))

-- | type = @enum@
--
--   <https://www.khronos.org/registry/vulkan/specs/1.1-extensions/html/vkspec.html#VkPolygonMode VkPolygonMode registry at www.khronos.org>
newtype VkPolygonMode = VkPolygonMode Int32
                        deriving (Eq, Ord, Enum, Storable)

instance Show VkPolygonMode where
    showsPrec _ VK_POLYGON_MODE_FILL
      = showString "VK_POLYGON_MODE_FILL"
    showsPrec _ VK_POLYGON_MODE_LINE
      = showString "VK_POLYGON_MODE_LINE"
    showsPrec _ VK_POLYGON_MODE_POINT
      = showString "VK_POLYGON_MODE_POINT"
    showsPrec p (VkPolygonMode x)
      = showParen (p >= 11)
          (showString "VkPolygonMode " . showsPrec 11 x)

instance Read VkPolygonMode where
    readPrec
      = parens
          (choose
             [("VK_POLYGON_MODE_FILL", pure VK_POLYGON_MODE_FILL),
              ("VK_POLYGON_MODE_LINE", pure VK_POLYGON_MODE_LINE),
              ("VK_POLYGON_MODE_POINT", pure VK_POLYGON_MODE_POINT)]
             +++
             prec 10
               (expectP (Ident "VkPolygonMode") >>
                  (VkPolygonMode <$> step readPrec)))

pattern VK_POLYGON_MODE_FILL :: VkPolygonMode

pattern VK_POLYGON_MODE_FILL = VkPolygonMode 0

pattern VK_POLYGON_MODE_LINE :: VkPolygonMode

pattern VK_POLYGON_MODE_LINE = VkPolygonMode 1

pattern VK_POLYGON_MODE_POINT :: VkPolygonMode

pattern VK_POLYGON_MODE_POINT = VkPolygonMode 2