keyboard subsystem added

This commit is contained in:
nek0 2017-12-12 13:10:55 +01:00
parent c82325a1bd
commit 853951df5b
3 changed files with 64 additions and 0 deletions

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@ -68,8 +68,10 @@ library
, Affection.MessageBus.Message
, Affection.MessageBus.Message.Class
, Affection.MessageBus.Message.WindowMessage
, Affection.MessageBus.Message.KeyboardMessage
, Affection.Subsystems.Class
, Affection.Subsystems.AffectionWindow
, Affection.Subsystems.AffectionKeyboard
default-extensions: OverloadedStrings
-- Modules included in this library but not exported.

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@ -0,0 +1,18 @@
module Affection.MessageBus.Message.KeyboardMessage where
import Affection.MessageBus.Message.Class
import Data.Word (Word32(..))
import qualified SDL
data KeyboardMessage = MsgKeyboardEvent
{ msgKbdWhen :: Word32
, msgKbdWindow :: Maybe SDL.Window
, msgKbdKeyMotion :: SDL.InputMotion
, msgKbdLeyRepeat :: Bool
, msgKbdKeysym :: SDL.Keysym
}
instance Message KeyboardMessage where
msgTime (MsgKeyboardEvent t _ _ _ _) = t

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@ -0,0 +1,44 @@
{-# LANGUAGE MultiParamTypeClasses #-}
module Affection.Subsystems.AffectionKeyboard where
import Affection.MessageBus
import Affection.Subsystems.Class
import Affection.Types
import Control.Monad.IO.Class (liftIO)
import qualified SDL
data AffectionKeyboard = AffectionKeyboard
{ keyboardInChannel :: Channel KeyboardMessage
, keyboardOutChannel :: Channel KeyboardMessage
}
instance Participant AffectionKeyboard KeyboardMessage where
partChannel = keyboardOutChannel
partInit ichan = do
ochan <- liftIO $ newBroadcastChannel
return $ AffectionKeyboard ichan ochan
partListen p =
liftIO $ tryPeekChannel (keyboardInChannel p)
partEmit p m =
liftIO $ writeChannel (keyboardOutChannel p) m
instance SDLSubsystem AffectionKeyboard KeyboardMessage where
consumeSDLEvents ak evs = doConsume evs
where
doConsume [] = return []
doConsume (e:es) = case SDL.eventPayload e of
SDL.KeyboardEvent dat -> do
partEmit ak (MsgKeyboardEvent
(SDL.eventTimestamp e)
(SDL.keyboardEventWindow dat)
(SDL.keyboardEventKeyMotion dat)
(SDL.keyboardEventRepeat dat)
(SDL.keyboardEventKeysym dat)
)
doConsume es
_ -> fmap (e :) (doConsume es)