1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
|
{-
sscan --- text UI for scanning with SANE
Copyright (C) 2017 Sean Whitton
This file is part of sscan.
sscan is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
sscan is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with sscan. If not, see <http://www.gnu.org/licenses/>.
-}
module UI (runTheApp) where
import qualified Graphics.Vty as V
import Lens.Micro ((&), (.~), (^.))
import Brick.AttrMap
import Brick.Main
import Brick.Types
import Brick.Widgets.Border as B
import Brick.Widgets.Center as C
import Brick.Widgets.Core
import Brick.Widgets.DefnList
import Presets
import Types.Preset
import Types.State
drawUI :: St -> [Widget ()]
drawUI st = [ui]
where
ui = vBox [ hBorderWithLabel (str "[ Status ]")
, vLimit 3 $ C.center $ status
, hBorderWithLabel (str "[ Current settings ]")
, vLimit 8 $ C.center $ settingsBox
, hBorderWithLabel (str "[ Presets ]")
, vLimit (2 + length presets) $ C.center $ presetsBox
, hBorderWithLabel (str "[ Actions ]")
, vLimit 6 $ C.center $ actionsBox
]
status = str $ maybe
"Ready to scan first page"
(\(ScanSess _ p _) -> "Scanned " ++ show p ++ " pages")
(st^.stScanSess)
settingsBox = defnList AlignRight Nothing
[ ("run OCRmyPDF", if st^.stOCR then "yes" else "no")
, ("colour data", show $ st^.stColour)
, ("page size", show $ st^.stPaper)
, ("DPI", show $ st^.stDPI)
, ("output format", show $ st^.stOutFormat)
, ("output dir", st^.stOutdir)
]
presetsBox = defnList AlignLeft
(Just $ V.withStyle V.currentAttr V.bold)
(map (\(Preset k desc _) -> ([k], desc)) presets)
actionsBox = defnList AlignLeft
(Just $ V.withStyle V.currentAttr V.bold) $
(if st^.stOutFormat == PDF
then (ifScanSess st
[ ("SPC", "scan next page")
, ("RET", "scan final page")
, ("q", "declare most recent scanned page was the final page")
, ("ESC", "abort/restart scanning this document")
]
[ ("SPC", "scan first page of multi-page document")
, ("RET", "scan single page document")
, ("q", "quit sscan")
]
)
else [ ("SPC|RET", "scan page")
, ("q", "quit sscan")
]
)
handleQ :: St -> EventM () (Next St)
handleQ st = halt $ ifScanSess st
(setScanSessCommand Finalise st)
(resetScanSess st) -- misnomer: this causes sscan to exit
handleRET :: St -> EventM () (Next St)
handleRET st = halt $ setScanSessCommand FinalPage st
handleSPC :: St -> EventM () (Next St)
handleSPC st = halt $ setScanSessCommand
(case st^.stOutFormat of
PDF -> NextPage
PNG -> FinalPage)
st
handleESC :: St -> EventM () (Next St)
handleESC st = ifScanSess st
(halt $ setScanSessCommand Abort st)
(continue st)
handleHotKey :: St -> Char -> EventM () (Next St)
handleHotKey st 'q' = handleQ st
handleHotKey st ' ' = handleSPC st
handleHotKey st 'o' = continue $ updateSt st
(\s -> s & stOCR .~ (not $ st^.stOCR))
handleHotKey st 'c' = continue $ updateSt st
(\s -> s & stColour .~ (cycleColour $ st^.stColour))
handleHotKey st 'p' = continue $ updateSt st
(\s -> s & stPaper .~ (cyclePaper $ st^.stPaper))
handleHotKey st c = continue $ updateSt st $
case lookupPreset c of
Just (Preset _ _ f) -> f
_ -> id
appEvent :: St -> BrickEvent () e -> EventM () (Next St)
appEvent st (VtyEvent e) =
case e of
V.EvKey (V.KEnter) [] -> handleRET st
V.EvKey (V.KEsc) [] -> handleESC st
V.EvKey (V.KChar c) [] -> handleHotKey st c
_ -> continue st
appEvent st _ = continue st
theApp :: App St e ()
theApp =
App { appDraw = drawUI
, appChooseCursor = neverShowCursor
, appHandleEvent = appEvent
, appStartEvent = return
, appAttrMap = const $ attrMap V.defAttr []
}
runTheApp :: St -> IO St
runTheApp = defaultMain theApp
|
