Google Code-in: Center help text field
Modifies the grid layout slightly so that the help text which appears when hovering over certain elements is centered with respect to the window, even when there are more buttons on one side.
https://google-melange.appspot.com/gci/task/view/google/gci2012/7968226
module ServerState
(
module RoomsAndClients,
clientRoomA,
ServerState(..),
client's,
allClientsS,
roomClientsS,
sameProtoClientsS,
io
) where
import Control.Monad.State.Strict
import Data.Set as Set(Set)
import Data.Word
----------------------
import RoomsAndClients
import CoreTypes
data ServerState = ServerState {
clientIndex :: !(Maybe ClientIndex),
serverInfo :: !ServerInfo,
removedClients :: !(Set.Set ClientIndex),
roomsClients :: !MRnC
}
clientRoomA :: StateT ServerState IO RoomIndex
clientRoomA = do
(Just ci) <- gets clientIndex
rnc <- gets roomsClients
io $ clientRoomM rnc ci
client's :: (ClientInfo -> a) -> StateT ServerState IO a
client's f = do
(Just ci) <- gets clientIndex
rnc <- gets roomsClients
io $ client'sM rnc f ci
allClientsS :: StateT ServerState IO [ClientInfo]
allClientsS = gets roomsClients >>= liftIO . clientsM
roomClientsS :: RoomIndex -> StateT ServerState IO [ClientInfo]
roomClientsS ri = do
rnc <- gets roomsClients
io $ roomClientsM rnc ri
sameProtoClientsS :: Word16 -> StateT ServerState IO [ClientInfo]
sameProtoClientsS p = liftM f allClientsS
where
f = filter (\c -> clientProto c == p)
io :: IO a -> StateT ServerState IO a
io = liftIO