hledger/hledger-ui/Hledger/UI/RegisterScreen.hs
Simon Michael 16bb17fbe8 ui: show nonzero (empty) mode, turn it off by default
-E/--empty is now the default for hledger-ui, so accounts with 0 balance
and transactions posting 0 change are shown by default.  The E key
toggles this, entering "nonzero" mode which hides zero items.
2016-06-03 09:01:54 -07:00

241 lines
9.7 KiB
Haskell

-- The account register screen, showing transactions in an account, like hledger-web's register.
{-# LANGUAGE OverloadedStrings, FlexibleContexts #-}
module Hledger.UI.RegisterScreen
(screen
,rsSetCurrentAccount
)
where
import Lens.Micro ((^.))
import Control.Monad.IO.Class (liftIO)
import Data.List
import Data.List.Split (splitOn)
import Data.Monoid
-- import Data.Maybe
-- import Data.Text (Text)
import qualified Data.Text as T
import Data.Time.Calendar (Day)
import qualified Data.Vector as V
import Graphics.Vty as Vty
import Brick
import Brick.Widgets.List
import Brick.Widgets.Border (borderAttr)
-- import Brick.Widgets.Center
-- import Text.Printf
import Hledger
import Hledger.Cli hiding (progname,prognameandversion,green)
import Hledger.UI.UIOptions
-- import Hledger.UI.Theme
import Hledger.UI.UITypes
import Hledger.UI.UIUtils
import qualified Hledger.UI.TransactionScreen as TS (screen)
import qualified Hledger.UI.ErrorScreen as ES (screen)
screen = RegisterScreen{
rsState = (list "register" V.empty 1, "")
,sInitFn = initRegisterScreen
,sDrawFn = drawRegisterScreen
,sHandleFn = handleRegisterScreen
}
rsSetCurrentAccount a scr@RegisterScreen{rsState=(l,_)} = scr{rsState=(l,a)}
rsSetCurrentAccount _ scr = scr
initRegisterScreen :: Day -> AppState -> AppState
initRegisterScreen d st@AppState{aopts=opts, ajournal=j, aScreen=s@RegisterScreen{rsState=(_,acct)}} =
st{aScreen=s{rsState=(l,acct)}}
where
-- gather arguments and queries
ropts = (reportopts_ $ cliopts_ opts)
{
depth_=Nothing,
balancetype_=HistoricalBalance
}
-- XXX temp
thisacctq = Acct $ accountNameToAccountRegex acct -- includes subs
q = filterQuery (not . queryIsDepth) $ queryFromOpts d ropts
(_label,items) = accountTransactionsReport ropts j q thisacctq
items' = (if empty_ ropts then id else filter ((/=0) . fifth6)) $ -- exclude zero-change txns unless --empty
reverse -- most recent last
items
-- pre-render all items; these will be the List elements. This helps calculate column widths.
displayitems = map displayitem items'
where
displayitem (t, _, _issplit, otheracctsstr, change, bal) =
(showDate $ tdate t
,T.unpack $ tdescription t
,case splitOn ", " otheracctsstr of
[s] -> s
ss -> intercalate ", " ss
-- _ -> "<split>" -- should do this if accounts field width < 30
,showMixedAmountOneLineWithoutPrice change
,showMixedAmountOneLineWithoutPrice bal
,t
)
-- build the List, moving the selection to the end
l = listMoveTo (length items) $
list (Name "register") (V.fromList displayitems) 1
-- (listName someList)
initRegisterScreen _ _ = error "init function called with wrong screen type, should not happen"
drawRegisterScreen :: AppState -> [Widget]
drawRegisterScreen AppState{aopts=UIOpts{cliopts_=CliOpts{reportopts_=ropts}}
,aScreen=RegisterScreen{rsState=(l,acct)}} = [ui]
where
toplabel = withAttr ("border" <> "bold") (str $ T.unpack acct)
<+> togglefilters
<+> str " transactions"
-- <+> borderQueryStr querystr -- no, account transactions report shows all transactions in the acct ?
-- <+> str " and subs"
<+> str " ("
<+> cur
<+> str "/"
<+> total
<+> str ")"
togglefilters =
case concat [
if cleared_ ropts then ["cleared"] else []
,if real_ ropts then ["real"] else []
,if empty_ ropts then [] else ["nonzero"]
] of
[] -> str ""
fs -> withAttr (borderAttr <> "query") (str $ " " ++ intercalate ", " fs)
cur = str $ case l^.listSelectedL of
Nothing -> "-"
Just i -> show (i + 1)
total = str $ show $ length displayitems
displayitems = V.toList $ l^.listElementsL
-- query = query_ $ reportopts_ $ cliopts_ opts
ui = Widget Greedy Greedy $ do
-- calculate column widths, based on current available width
c <- getContext
let
totalwidth = c^.availWidthL
- 2 -- XXX due to margin ? shouldn't be necessary (cf UIUtils)
-- the date column is fixed width
datewidth = 10
-- multi-commodity amounts rendered on one line can be
-- arbitrarily wide. Give the two amounts as much space as
-- they need, while reserving a minimum of space for other
-- columns and whitespace. If they don't get all they need,
-- allocate it to them proportionally to their maximum widths.
whitespacewidth = 10 -- inter-column whitespace, fixed width
minnonamtcolswidth = datewidth + 2 + 2 -- date column plus at least 2 for desc and accts
maxamtswidth = max 0 (totalwidth - minnonamtcolswidth - whitespacewidth)
maxchangewidthseen = maximum' $ map (strWidth . fourth6) displayitems
maxbalwidthseen = maximum' $ map (strWidth . fifth6) displayitems
changewidthproportion = fromIntegral maxchangewidthseen / fromIntegral (maxchangewidthseen + maxbalwidthseen)
maxchangewidth = round $ changewidthproportion * fromIntegral maxamtswidth
maxbalwidth = maxamtswidth - maxchangewidth
changewidth = min maxchangewidth maxchangewidthseen
balwidth = min maxbalwidth maxbalwidthseen
-- assign the remaining space to the description and accounts columns
-- maxdescacctswidth = totalwidth - (whitespacewidth - 4) - changewidth - balwidth
maxdescacctswidth =
-- trace (show (totalwidth, datewidth, changewidth, balwidth, whitespacewidth)) $
max 0 (totalwidth - datewidth - changewidth - balwidth - whitespacewidth)
-- allocating proportionally.
-- descwidth' = maximum' $ map (strWidth . second6) displayitems
-- acctswidth' = maximum' $ map (strWidth . third6) displayitems
-- descwidthproportion = (descwidth' + acctswidth') / descwidth'
-- maxdescwidth = min (maxdescacctswidth - 7) (maxdescacctswidth / descwidthproportion)
-- maxacctswidth = maxdescacctswidth - maxdescwidth
-- descwidth = min maxdescwidth descwidth'
-- acctswidth = min maxacctswidth acctswidth'
-- allocating equally.
descwidth = maxdescacctswidth `div` 2
acctswidth = maxdescacctswidth - descwidth
colwidths = (datewidth,descwidth,acctswidth,changewidth,balwidth)
bottomlabel = borderKeysStr [
-- ("up/down/pgup/pgdown/home/end", "move")
("left", "back")
,("E", "nonzero?")
,("C", "cleared?")
,("R", "real?")
,("right/enter", "transaction")
,("g", "reload")
,("q", "quit")
]
render $ defaultLayout toplabel bottomlabel $ renderList l (drawRegisterItem colwidths)
drawRegisterScreen _ = error "draw function called with wrong screen type, should not happen"
drawRegisterItem :: (Int,Int,Int,Int,Int) -> Bool -> (String,String,String,String,String,Transaction) -> Widget
drawRegisterItem (datewidth,descwidth,acctswidth,changewidth,balwidth) selected (date,desc,accts,change,bal,_) =
Widget Greedy Fixed $ do
render $
str (fitString (Just datewidth) (Just datewidth) True True date) <+>
str " " <+>
str (fitString (Just descwidth) (Just descwidth) True True desc) <+>
str " " <+>
str (fitString (Just acctswidth) (Just acctswidth) True True accts) <+>
str " " <+>
withAttr changeattr (str (fitString (Just changewidth) (Just changewidth) True False change)) <+>
str " " <+>
withAttr balattr (str (fitString (Just balwidth) (Just balwidth) True False bal))
where
changeattr | '-' `elem` change = sel $ "list" <> "amount" <> "decrease"
| otherwise = sel $ "list" <> "amount" <> "increase"
balattr | '-' `elem` bal = sel $ "list" <> "balance" <> "negative"
| otherwise = sel $ "list" <> "balance" <> "positive"
sel | selected = (<> "selected")
| otherwise = id
handleRegisterScreen :: AppState -> Vty.Event -> EventM (Next AppState)
handleRegisterScreen st@AppState{
aScreen=s@RegisterScreen{rsState=(l,acct)}
,aopts=UIOpts{cliopts_=copts}
,ajournal=j
} e = do
d <- liftIO getCurrentDay
case e of
Vty.EvKey Vty.KEsc [] -> halt st
Vty.EvKey (Vty.KChar 'q') [] -> halt st
Vty.EvKey (Vty.KChar 'g') [] -> do
(ej, _) <- liftIO $ journalReloadIfChanged copts d j
case ej of
Right j' -> continue $ reload j' d st
Left err -> continue $ screenEnter d ES.screen{esState=err} st
Vty.EvKey (Vty.KChar 'E') [] -> continue $ reload j d $ stToggleEmpty st
Vty.EvKey (Vty.KChar 'C') [] -> continue $ reload j d $ stToggleCleared st
Vty.EvKey (Vty.KChar 'R') [] -> continue $ reload j d $ stToggleReal st
Vty.EvKey (Vty.KLeft) [] -> continue $ popScreen st
Vty.EvKey (k) [] | k `elem` [Vty.KRight, Vty.KEnter] -> do
case listSelectedElement l of
Just (_, (_, _, _, _, _, t)) ->
let
ts = map sixth6 $ V.toList $ listElements l
numberedts = zip [1..] ts
i = fromIntegral $ maybe 0 (+1) $ elemIndex t ts -- XXX
in
continue $ screenEnter d TS.screen{tsState=((i,t),numberedts,acct)} st
Nothing -> continue st
-- fall through to the list's event handler (handles [pg]up/down)
ev -> do
l' <- handleEvent ev l
continue st{aScreen=s{rsState=(l',acct)}}
-- continue =<< handleEventLensed st someLens ev
handleRegisterScreen _ _ = error "event handler called with wrong screen type, should not happen"