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register: auto-size amount columns, like hledger-ui

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This commit is contained in:
Simon Michael 2015-10-10 18:20:40 -07:00
parent eb75946e64
commit 7b8c992f5a
1 changed files with 20 additions and 6 deletions
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26
hledger/Hledger/Cli/Register.hs
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@ -81,7 +81,12 @@ postingsReportItemAsCsvRecord (_, _, _, p, b) = [date,desc,acct,amt,bal]
-- | Render a register report as plain text suitable for console output.
postingsReportAsText :: CliOpts -> PostingsReport -> String
postingsReportAsText opts = unlines . map (postingsReportItemAsText opts) . snd
postingsReportAsText opts (_,items) = unlines $ map (postingsReportItemAsText opts amtwidth balwidth) items
where
amtwidth = maximum $ 12 : map (strWidth . showMixedAmount . itemamt) items
balwidth = maximum $ 12 : map (strWidth . showMixedAmount . itembal) items
itemamt (_,_,_,Posting{pamount=a},_) = a
itembal (_,_,_,_,a) = a
tests_postingsReportAsText = [
"postingsReportAsText" ~: do
@ -116,9 +121,10 @@ tests_postingsReportAsText = [
-- has multiple commodities. Does not yet support formatting control
-- like balance reports.
--
postingsReportItemAsText :: CliOpts -> PostingsReportItem -> String
postingsReportItemAsText opts (mdate, menddate, mdesc, p, b) =
postingsReportItemAsText :: CliOpts -> Int -> Int -> PostingsReportItem -> String
postingsReportItemAsText opts preferredamtwidth preferredbalwidth (mdate, menddate, mdesc, p, b) =
-- use elide*Width to be wide-char-aware
-- trace (show (totalwidth, datewidth, descwidth, acctwidth, amtwidth, balwidth)) $
intercalate "\n" $
[concat [fitString (Just datewidth) (Just datewidth) True True date
," "
@ -140,15 +146,23 @@ postingsReportItemAsText opts (mdate, menddate, mdesc, p, b) =
]
where
-- calculate widths
-- XXX should be smarter, eg resize amount columns when needed; cf hledger-ui
(totalwidth,mdescwidth) = registerWidthsFromOpts opts
amtwidth = 12
balwidth = 12
(datewidth, date) = case (mdate,menddate) of
(Just _, Just _) -> (21, showDateSpan (DateSpan mdate menddate))
(Nothing, Just _) -> (21, "")
(Just d, Nothing) -> (10, showDate d)
_ -> (10, "")
(amtwidth, balwidth)
| shortfall <= 0 = (preferredamtwidth, preferredbalwidth)
| otherwise = (adjustedamtwidth, adjustedbalwidth)
where
mincolwidth = 2 -- columns always show at least an ellipsis
maxamtswidth = max 0 (totalwidth - (datewidth + 1 + mincolwidth + 2 + mincolwidth + 2 + 2))
shortfall = (preferredamtwidth + preferredbalwidth) - maxamtswidth
amtwidthproportion = fromIntegral preferredamtwidth / fromIntegral (preferredamtwidth + preferredbalwidth)
adjustedamtwidth = round $ amtwidthproportion * fromIntegral maxamtswidth
adjustedbalwidth = maxamtswidth - adjustedamtwidth
remaining = totalwidth - (datewidth + 1 + 2 + amtwidth + 2 + balwidth)
(descwidth, acctwidth)
| hasinterval = (0, remaining - 2)