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ViewportScrollDemo: use explicit imports

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This commit is contained in:
Jonathan Daugherty 2015-07-10 13:38:05 -07:00
parent d6f34261bc
commit a460d2fd15
1 changed files with 39 additions and 30 deletions
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69
programs/ViewportScrollDemo.hs
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@ -6,59 +6,68 @@ import Control.Applicative
import Control.Monad (void)
import Data.Monoid
import Data.Default
import Graphics.Vty
import qualified Graphics.Vty as V
import Brick.Types
import Brick.Main
import qualified Brick.Types as T
import qualified Brick.Main as M
import qualified Brick.Widgets.Center as C
import qualified Brick.Widgets.Border as B
import Brick.Widgets.Core
import Brick.Widgets.Center
import Brick.Widgets.Border
( Widget
, ViewportType(Horizontal, Vertical)
, hLimit
, vLimit
, hBox
, vBox
, viewport
, str
)
vp1Name :: Name
vp1Name :: T.Name
vp1Name = "demo1"
vp2Name :: Name
vp2Name :: T.Name
vp2Name = "demo2"
drawUi :: () -> [Widget]
drawUi = const [ui]
where
ui = center $
ui = C.center $
hLimit 60 $
vLimit 20 $
border $
B.border $
hBox [ viewport vp1Name Vertical $
vBox $ "Press up and down arrow keys" :
"to scroll this viewport." :
(str <$> [ "Line " <> (show i) | i <- [3..50::Int] ])
, vBorder
, B.vBorder
, viewport vp2Name Horizontal
"Press left and right arrow keys to scroll this viewport."
]
vp1Scroll :: ViewportScroll
vp1Scroll = viewportScroll vp1Name
vp1Scroll :: M.ViewportScroll
vp1Scroll = M.viewportScroll vp1Name
vp2Scroll :: ViewportScroll
vp2Scroll = viewportScroll vp2Name
vp2Scroll :: M.ViewportScroll
vp2Scroll = M.viewportScroll vp2Name
appEvent :: () -> Event -> EventM (Next ())
appEvent _ (EvKey KDown []) = scrollBy vp1Scroll 1 >> continue ()
appEvent _ (EvKey KUp []) = scrollBy vp1Scroll (-1) >> continue ()
appEvent _ (EvKey KRight []) = scrollBy vp2Scroll 1 >> continue ()
appEvent _ (EvKey KLeft []) = scrollBy vp2Scroll (-1) >> continue ()
appEvent _ (EvKey KEsc []) = halt ()
appEvent _ _ = continue ()
appEvent :: () -> V.Event -> M.EventM (M.Next ())
appEvent _ (V.EvKey V.KDown []) = M.scrollBy vp1Scroll 1 >> M.continue ()
appEvent _ (V.EvKey V.KUp []) = M.scrollBy vp1Scroll (-1) >> M.continue ()
appEvent _ (V.EvKey V.KRight []) = M.scrollBy vp2Scroll 1 >> M.continue ()
appEvent _ (V.EvKey V.KLeft []) = M.scrollBy vp2Scroll (-1) >> M.continue ()
appEvent _ (V.EvKey V.KEsc []) = M.halt ()
appEvent _ _ = M.continue ()
app :: App () Event
app :: M.App () V.Event
app =
App { appDraw = drawUi
, appStartEvent = return
, appHandleEvent = appEvent
, appAttrMap = const def
, appMakeVtyEvent = id
, appChooseCursor = neverShowCursor
}
M.App { M.appDraw = drawUi
, M.appStartEvent = return
, M.appHandleEvent = appEvent
, M.appAttrMap = const def
, M.appMakeVtyEvent = id
, M.appChooseCursor = M.neverShowCursor
}
main :: IO ()
main = void $ defaultMain app ()
main = void $ M.defaultMain app ()