Some more restructuring, WIP
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d519f67816
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5 changed files with 70 additions and 23 deletions
34
lib/Phi/Phi.hs
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34
lib/Phi/Phi.hs
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@ -0,0 +1,34 @@
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{-# LANGUAGE ExistentialQuantification #-}
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module Phi.Phi ( Phi
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, MessageBus
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, Message(..)
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, initPhi
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, runPhi
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, sendMessage
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, getMessageBus
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, receiveMessage
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) where
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import Control.Concurrent.Chan
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import Control.Monad
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data Phi = Phi (Chan Message)
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data MessageBus = MessageBus (Chan Message)
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data Message = forall a. Show a => Message a
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initPhi :: IO Phi
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initPhi = liftM Phi newChan
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runPhi :: Phi -> IO ()
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runPhi (Phi chan) = forever $ readChan chan
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sendMessage :: Phi -> Message -> IO ()
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sendMessage (Phi chan) = writeChan chan
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getMessageBus :: Phi -> IO MessageBus
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getMessageBus (Phi chan) = liftM MessageBus $ dupChan chan
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receiveMessage :: MessageBus -> IO Message
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receiveMessage (MessageBus chan) = readChan chan
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@ -1,6 +1,7 @@
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{-# LANGUAGE ExistentialQuantification, TypeFamilies, StandaloneDeriving, FlexibleContexts #-}
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module Phi.Widget ( Widget(..)
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module Phi.Widget ( Message(..)
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, Widget(..)
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, WidgetClass(..)
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, WidgetState(..)
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, separator
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@ -14,6 +15,8 @@ import Data.Traversable
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import Graphics.Rendering.Cairo
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import Phi.Phi
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class Show a => WidgetClass a where
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type WidgetData a :: *
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@ -30,6 +33,9 @@ class Show a => WidgetClass a where
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render :: a -> WidgetData a -> Int -> Int -> Render ()
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handleMessage :: a -> WidgetData a -> Message -> WidgetData a
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handleMessage _ priv _ = priv
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data Widget = forall a. (WidgetClass a, Show (WidgetData a)) => Widget a
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deriving instance Show Widget
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@ -67,7 +73,7 @@ layoutWidgets widgets x y width height = snd $ mapAccumL layoutWidgetAndX x widg
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WidgetState {stateWidget = w, statePrivateData = priv} ->
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let wWidth = floor $ (fromIntegral $ minSize w) + (fromIntegral surplus)*(nneg $ weight w)/wsum
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priv' = layout w priv wWidth height
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in WidgetState { stateWidget = w, stateX = wX, stateY = y, stateWidth = wWidth, stateHeight = height, statePrivateData = priv' }
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in WidgetState w wX y wWidth height priv'
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nneg :: (Num a, Ord a) => a -> a
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nneg x = max 0 x
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@ -84,6 +90,10 @@ renderWidgets widgets = forM_ widgets $ \WidgetState { stateWidget = widget
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render widget priv w h
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restore
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handleMessageWidgets :: Message -> [WidgetState] -> [WidgetState]
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handleMessageWidgets message = map handleMessageWidget
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where
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handleMessageWidget (WidgetState w x y width height priv) = WidgetState w x y width height $ handleMessage w priv message
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data Separator = Separator Int Float deriving Show
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@ -2,7 +2,7 @@
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module Phi.X11 ( XConfig(..)
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, defaultXConfig
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, initPhi
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, initPhiX
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) where
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import Graphics.X11.Xlib
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@ -20,6 +20,7 @@ import Control.Monad.State
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import Control.Monad.Reader
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import Control.Monad.Trans
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import Phi.Phi
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import qualified Phi.Types as Phi
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import qualified Phi.Panel as Panel
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import qualified Phi.Widget as Widget
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@ -54,17 +55,17 @@ newtype PhiReader a = PhiReader (ReaderT PhiConfig IO a)
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runPhiReader :: PhiConfig -> PhiReader a -> IO a
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runPhiReader config (PhiReader a) = runReaderT a config
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newtype Phi a = Phi (StateT PhiState PhiReader a)
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newtype PhiX a = PhiX (StateT PhiState PhiReader a)
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deriving (Monad, MonadState PhiState, MonadReader PhiConfig, MonadIO)
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runPhi :: PhiConfig -> PhiState -> Phi a -> IO (a, PhiState)
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runPhi config st (Phi a) = runPhiReader config $ runStateT a st
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runPhiX :: PhiConfig -> PhiState -> PhiX a -> IO (a, PhiState)
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runPhiX config st (PhiX a) = runPhiReader config $ runStateT a st
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liftIOContToPhi :: ((a -> IO (b, PhiState)) -> IO (b, PhiState)) -> (a -> Phi b) -> Phi b
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liftIOContToPhi f c = do
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liftIOContToPhiX :: ((a -> IO (b, PhiState)) -> IO (b, PhiState)) -> (a -> PhiX b) -> PhiX b
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liftIOContToPhiX f c = do
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config <- ask
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state <- get
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(a, state') <- liftIO $ f $ runPhi config state . c
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(a, state') <- liftIO $ f $ runPhiX config state . c
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put state'
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return a
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@ -73,13 +74,13 @@ defaultXConfig = XConfig { phiXScreenInfo = getScreenInfo
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}
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initPhi :: XConfig -> Panel.PanelConfig -> [Widget.Widget] -> IO ()
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initPhi xconfig config widgets = do
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initPhiX :: Phi -> XConfig -> Panel.PanelConfig -> [Widget.Widget] -> IO ()
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initPhiX phi xconfig config widgets = do
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disp <- openDisplay []
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atoms <- initAtoms disp
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selectInput disp (defaultRootWindow disp) $ propertyChangeMask.|.structureNotifyMask
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runPhi PhiConfig { phiXConfig = xconfig, phiPanelConfig = config, phiDisplay = disp, phiAtoms = atoms } PhiState { phiRootPixmap = 0, phiPanels = [] } $ do
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runPhiX PhiConfig { phiXConfig = xconfig, phiPanelConfig = config, phiDisplay = disp, phiAtoms = atoms } PhiState { phiRootPixmap = 0, phiPanels = [] } $ do
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updateRootPixmap
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screens <- liftIO $ phiXScreenInfo xconfig disp
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@ -92,7 +93,7 @@ initPhi xconfig config widgets = do
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updatePanels True
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liftIOContToPhi allocaXEvent $ \xevent -> do
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liftIOContToPhiX allocaXEvent $ \xevent -> do
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forever $ do
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liftIO $ nextEvent disp xevent
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event <- liftIO $ getEvent xevent
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@ -104,7 +105,7 @@ initPhi xconfig config widgets = do
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return ()
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updatePanels :: Bool -> Phi ()
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updatePanels :: Bool -> PhiX ()
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updatePanels redraw = do
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disp <- asks phiDisplay
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@ -134,7 +135,7 @@ updatePanels redraw = do
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modify $ \state -> state { phiPanels = panels' }
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handlePropertyUpdate :: Event -> Phi ()
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handlePropertyUpdate :: Event -> PhiX ()
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handlePropertyUpdate PropertyEvent { ev_atom = atom } = do
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atoms <- asks phiAtoms
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panels <- gets phiPanels
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@ -144,7 +145,7 @@ handlePropertyUpdate PropertyEvent { ev_atom = atom } = do
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updatePanels True
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updateRootPixmap :: Phi ()
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updateRootPixmap :: PhiX ()
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updateRootPixmap = do
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disp <- asks phiDisplay
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atoms <- asks phiAtoms
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@ -155,7 +156,7 @@ updateRootPixmap = do
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modify $ \state -> state { phiRootPixmap = pixmap }
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createPanel :: [Widget.Widget] -> Rectangle -> Phi PanelState
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createPanel :: [Widget.Widget] -> Rectangle -> PhiX PanelState
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createPanel widgets screenRect = do
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config <- asks phiPanelConfig
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disp <- asks phiDisplay
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@ -173,7 +174,7 @@ createPanel widgets screenRect = do
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return PanelState { panelWindow = win, panelGC = gc, panelPixmap = pixmap, panelSurface = surface, panelArea = rect, panelScreenArea = screenRect, panelWidgetStates = map Widget.createWidgetState widgets }
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createPanelWindow :: Rectangle -> Phi Window
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createPanelWindow :: Rectangle -> PhiX Window
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createPanelWindow rect = do
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disp <- asks phiDisplay
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let screen = defaultScreen disp
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@ -191,7 +192,7 @@ createPanelWindow rect = do
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withRectangle rect (createWindow disp rootwin) 0 depth inputOutput visual mask attr
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setPanelProperties :: PanelState -> Phi ()
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setPanelProperties :: PanelState -> PhiX ()
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setPanelProperties panel = do
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disp <- asks phiDisplay
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atoms <- asks phiAtoms
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@ -223,7 +224,7 @@ setPanelProperties panel = do
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setStruts panel
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setStruts :: PanelState -> Phi ()
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setStruts :: PanelState -> PhiX ()
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setStruts panel = do
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atoms <- asks phiAtoms
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disp <- asks phiDisplay
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@ -12,7 +12,7 @@ build-type: Simple
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library
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build-depends: base >= 4, template-haskell, mtl, cairo, X11
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exposed-modules: Phi.Types, Phi.Panel, Phi.Widget, Phi.Border, Phi.X11
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exposed-modules: Phi.Types, Phi.Phi, Phi.Panel, Phi.Widget, Phi.Border, Phi.X11
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other-modules: Phi.X11.Atoms, Phi.X11.AtomList, Phi.Bindings.Util
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hs-source-dirs: lib
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@ -1,3 +1,4 @@
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import Phi.Phi
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import Phi.Types
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import Phi.Widget
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import Phi.Panel
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@ -8,7 +9,8 @@ import Data.Monoid
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main :: IO ()
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main = do
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initPhi defaultXConfig defaultPanelConfig { panelPosition = Bottom}
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phi <- initPhi
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initPhiX phi defaultXConfig defaultPanelConfig { panelPosition = Bottom, panelSize = 48 }
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[border border1 [border border3 [], border border3 []], border border2 []]
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where
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border1 = BorderConfig (simpleBorderWidth 1) 1 (simpleBorderWidth 2) (1, 1, 1, 0.5) (0.25, 0.25, 0.25, 0.5) 7 2
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