source: mainline/tools/xtui.py@ be8b5d6

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since be8b5d6 was be8b5d6, checked in by Martin Decky <martin@…>, 16 years ago

nicer display
  • Property mode set to 100644
File size: 5.9 KB
Line 
1#
2# Copyright (c) 2009 Martin Decky
3# All rights reserved.
4#
5# Redistribution and use in source and binary forms, with or without
6# modification, are permitted provided that the following conditions
7# are met:
8#
9# - Redistributions of source code must retain the above copyright
10# notice, this list of conditions and the following disclaimer.
11# - Redistributions in binary form must reproduce the above copyright
12# notice, this list of conditions and the following disclaimer in the
13# documentation and/or other materials provided with the distribution.
14# - The name of the author may not be used to endorse or promote products
15# derived from this software without specific prior written permission.
16#
17# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27#
28"""
29Text User Interface wrapper
30"""
31
32import sys
33import os
34
35def call_dlg(dlgcmd, *args, **kw):
36 "Wrapper for calling 'dialog' program"
37
38 indesc, outdesc = os.pipe()
39 pid = os.fork()
40 if (not pid):
41 os.close(2)
42 os.dup(outdesc)
43 os.close(indesc)
44
45 dlgargs = [dlgcmd]
46 for key, val in kw.items():
47 dlgargs.append('--' + key)
48 dlgargs.append(val)
49
50 dlgargs += args
51 os.execlp(dlgcmd, *dlgargs)
52
53 os.close(outdesc)
54
55 try:
56 errout = os.fdopen(indesc, 'r')
57 data = errout.read()
58 errout.close()
59 pid, status = os.wait()
60 except:
61 # Reset terminal
62 os.system('reset')
63 raise
64
65 if (not os.WIFEXITED(status)):
66 # Reset terminal
67 os.system('reset')
68 raise EOFError
69
70 status = os.WEXITSTATUS(status)
71 if (status == 255):
72 raise EOFError
73
74 return (status, data)
75
76try:
77 import snack
78 newt = True
79 dialog = False
80except ImportError:
81 newt = False
82
83 dlgcmd = os.environ.get('DIALOG', 'dialog')
84 if (call_dlg(dlgcmd, '--print-maxsize')[0] != 0):
85 dialog = False
86 else:
87 dialog = True
88
89width_extra = 13
90height_extra = 11
91
92def width_fix(screen, width):
93 "Correct width to screen size"
94
95 if (width + width_extra > screen.width):
96 width = screen.width - width_extra
97
98 if (width <= 0):
99 width = screen.width
100
101 return width
102
103def height_fix(screen, height):
104 "Correct height to screen size"
105
106 if (height + height_extra > screen.height):
107 height = screen.height - height_extra
108
109 if (height <= 0):
110 height = screen.height
111
112 return height
113
114def screen_init():
115 "Initialize the screen"
116
117 if (newt):
118 return snack.SnackScreen()
119
120 return None
121
122def screen_done(screen):
123 "Cleanup the screen"
124
125 if (newt):
126 screen.finish()
127
128def choice_window(screen, title, text, options, position):
129 "Create options menu"
130
131 maxopt = 0
132 for option in options:
133 length = len(option)
134 if (length > maxopt):
135 maxopt = length
136
137 width = maxopt
138 height = len(options)
139
140 if (newt):
141 width = width_fix(screen, width + width_extra)
142 height = height_fix(screen, height)
143
144 if (height > 3):
145 large = True
146 else:
147 large = False
148
149 buttonbar = snack.ButtonBar(screen, ('Done', 'Cancel'))
150 textbox = snack.TextboxReflowed(width, text)
151 listbox = snack.Listbox(height, scroll = large, returnExit = 1)
152
153 cnt = 0
154 for option in options:
155 listbox.append(option, cnt)
156 cnt += 1
157
158 if (position != None):
159 listbox.setCurrent(position)
160
161 grid = snack.GridForm(screen, title, 1, 3)
162 grid.add(textbox, 0, 0)
163 grid.add(listbox, 0, 1, padding = (0, 1, 0, 1))
164 grid.add(buttonbar, 0, 2, growx = 1)
165
166 retval = grid.runOnce()
167
168 return (buttonbar.buttonPressed(retval), listbox.current())
169 elif (dialog):
170 args = []
171 cnt = 0
172 for option in options:
173 args.append(str(cnt + 1))
174 args.append(option)
175
176 cnt += 1
177
178 kw = {}
179 if (position != None):
180 kw['default-item'] = str(position + 1)
181
182 status, data = call_dlg(dlgcmd, '--title', title, '--extra-button', '--extra-label', 'Done', '--menu', text, str(height + height_extra), str(width + width_extra), str(cnt), *args, **kw)
183
184 if (status == 1):
185 return ('cancel', None)
186
187 try:
188 choice = int(data) - 1
189 except ValueError:
190 return ('cancel', None)
191
192 if (status == 0):
193 return (None, choice)
194
195 return ('done', choice)
196
197 sys.stdout.write("\n *** %s *** \n%s\n\n" % (title, text))
198
199 maxcnt = len(str(len(options)))
200 cnt = 0
201 for option in options:
202 sys.stdout.write("%*s. %s\n" % (maxcnt, cnt + 1, option))
203 cnt += 1
204
205 sys.stdout.write("\n%*s. Done\n" % (maxcnt, '0'))
206 sys.stdout.write("%*s. Quit\n\n" % (maxcnt, 'q'))
207
208 while True:
209 if (position != None):
210 sys.stdout.write("Selection[%s]: " % str(position + 1))
211 else:
212 sys.stdout.write("Selection: ")
213 inp = sys.stdin.readline()
214
215 if (not inp):
216 raise EOFError
217
218 if (not inp.strip()):
219 if (position != None):
220 return (None, position)
221 continue
222
223 if (inp.strip() == 'q'):
224 return ('cancel', None)
225
226 try:
227 choice = int(inp.strip())
228 except ValueError:
229 continue
230
231 if (choice == 0):
232 return ('done', 0)
233
234 if (choice < 1) or (choice > len(options)):
235 continue
236
237 return (None, choice - 1)
238
239def error_dialog(screen, title, msg):
240 "Print error dialog"
241
242 width = len(msg)
243
244 if (newt):
245 width = width_fix(screen, width)
246
247 buttonbar = snack.ButtonBar(screen, ['Ok'])
248 textbox = snack.TextboxReflowed(width, msg)
249
250 grid = snack.GridForm(screen, title, 1, 2)
251 grid.add(textbox, 0, 0, padding = (0, 0, 0, 1))
252 grid.add(buttonbar, 0, 1, growx = 1)
253 grid.runOnce()
254 elif (dialog):
255 call_dlg(dlgcmd, '--title', title, '--msgbox', msg, '6', str(width + width_extra))
256
257 sys.stdout.write("\n%s: %s\n" % (title, msg))
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