hledger/hledger-ui/Hledger/UI/AccountsScreen.hs
Simon Michael e7aa150e52 ui: solidified register screen, added themes
- register screen:
  - smarter width-sensitive layout, with multi-commodity amounts on one line
  - items are sorted in date order
  - jumps to the latest item by default, with consistent scroll position
  - more prerendering, might speed up movement/paging slightly

- themes! --theme to select, --help to list (current themes: default, terminal, greenterm)

- border tweaks - dropped side borders, added side padding
2015-08-24 16:24:11 -07:00

121 lines
4.6 KiB
Haskell

-- The accounts screen, showing accounts and balances like the CLI balance command.
{-# LANGUAGE OverloadedStrings #-}
module Hledger.UI.AccountsScreen
(screen)
where
import Control.Lens ((^.))
-- import Control.Monad
import Control.Monad.IO.Class
-- import Data.Default
import Data.List
-- import Data.Monoid --
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
-- import Brick.Widgets.Center
import Hledger
import Hledger.Cli hiding (progname,prognameandversion,green)
-- import Hledger.Cli.Options (defaultBalanceLineFormat)
import Hledger.UI.Options
-- import Hledger.UI.Theme
import Hledger.UI.UITypes
import Hledger.UI.UIUtils
import qualified Hledger.UI.RegisterScreen2 as RS2 (screen)
screen = AccountsScreen{
asState = list "accounts" V.empty 1
,sInitFn = initAccountsScreen
,sDrawFn = drawAccountsScreen
,sHandleFn = handleAccountsScreen
}
initAccountsScreen :: Day -> [String] -> AppState -> AppState
initAccountsScreen d args st@AppState{aopts=opts, ajournal=j, aScreen=s@AccountsScreen{}} =
st{aScreen=s{asState=is'}}
where
is' = list (Name "accounts") (V.fromList items) 1
(items,_total) = balanceReport ropts q j
where
q = queryFromOpts d ropts
-- query_="cur:\\$"} -- XXX limit to one commodity to ensure one-line items
--{query_=unwords' $ locArgs l}
ropts = (reportopts_ cliopts)
{no_elide_=True}
{
query_=unwords' args,
balancetype_=HistoricalBalance -- XXX balanceReport doesn't respect this yet
}
cliopts = cliopts_ opts
initAccountsScreen _ _ _ = error "init function called with wrong screen type, should not happen"
drawAccountsScreen :: AppState -> [Widget]
drawAccountsScreen st@AppState{aScreen=AccountsScreen{asState=is}} = [ui]
where
label = str "Account " <+> cur <+> str " of " <+> total
cur = str (case is^.listSelectedL of
Nothing -> "-"
Just i -> show (i + 1))
total = str $ show $ length $ is^.listElementsL
items = listElements is
flat = flat_ $ reportopts_ $ cliopts_ $ aopts st
acctcolwidth = maximum $
V.map
(\((full,short,indent),_) ->
if flat then length full else length short + indent*2)
items
fmt = OneLine [ -- use a one-line format, List elements must have equal height
FormatField True (Just 2) Nothing DepthSpacerField
, FormatField True (Just acctcolwidth) Nothing AccountField
, FormatLiteral " "
, FormatField False (Just 40) Nothing TotalField
]
ui = defaultLayout label $ renderList is (drawAccountsItem fmt)
drawAccountsScreen _ = error "draw function called with wrong screen type, should not happen"
drawAccountsItem :: StringFormat -> Bool -> BalanceReportItem -> Widget
drawAccountsItem fmt _sel item =
Widget Greedy Fixed $ do
-- c <- getContext
let
showitem = intercalate "\n" . balanceReportItemAsText defreportopts fmt
render $ str $ showitem item
handleAccountsScreen :: AppState -> Vty.Event -> EventM (Next AppState)
handleAccountsScreen st@AppState{aScreen=scr@AccountsScreen{asState=is}} e = do
d <- liftIO getCurrentDay
-- c <- getContext
-- let h = c^.availHeightL
-- moveSel n l = listMoveBy n l
case e of
Vty.EvKey Vty.KEsc [] -> halt st
Vty.EvKey (Vty.KChar 'q') [] -> halt st
Vty.EvKey (Vty.KLeft) [] -> continue $ popScreen st
Vty.EvKey (Vty.KRight) [] -> do
let st' = screenEnter d args RS2.screen st
vScrollToBeginning $ viewportScroll "register"
continue st'
where
args = case listSelectedElement is of
Just (_, ((acct, _, _), _)) -> ["acct:"++accountNameToAccountRegex acct]
Nothing -> []
-- Vty.EvKey (Vty.KPageDown) [] -> continue $ st{aScreen=scr{asState=moveSel h is}}
-- Vty.EvKey (Vty.KPageUp) [] -> continue $ st{aScreen=scr{asState=moveSel (-h) is}}
-- fall through to the list's event handler (handles up/down)
ev -> do
is' <- handleEvent ev is
continue $ st{aScreen=scr{asState=is'}}
-- continue =<< handleEventLensed st someLens ev
handleAccountsScreen _ _ = error "event handler called with wrong screen type, should not happen"