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# Copyright (c) 2009 Martin Decky
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# - Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# - Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# - The name of the author may not be used to endorse or promote products
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# derived from this software without specific prior written permission.
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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Text User Interface wrapper
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def call_dlg(dlgcmd, *args, **kw):
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"Wrapper for calling 'dialog' program"
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indesc, outdesc = os.pipe()
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for key, val in kw.items():
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dlgargs.append('--' + key)
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os.execlp(dlgcmd, *dlgargs)
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errout = os.fdopen(indesc, 'r')
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pid, status = os.wait()
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if (not os.WIFEXITED(status)):
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status = os.WEXITSTATUS(status)
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dlgcmd = os.environ.get('DIALOG', 'dialog')
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if (call_dlg(dlgcmd, '--print-maxsize')[0] != 0):
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def width_fix(screen, width):
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"Correct width to screen size"
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if (width + width_extra > screen.width):
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width = screen.width - width_extra
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def height_fix(screen, height):
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"Correct height to screen size"
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if (height + height_extra > screen.height):
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height = screen.height - height_extra
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height = screen.height
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"Initialize the screen"
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return snack.SnackScreen()
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def screen_done(screen):
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def choice_window(screen, title, text, options, position):
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"Create options menu"
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for option in options:
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if (length > maxopt):
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height = len(options)
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width = width_fix(screen, width + width_extra)
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height = height_fix(screen, height)
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buttonbar = snack.ButtonBar(screen, ('Done', 'Cancel'))
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textbox = snack.TextboxReflowed(width, text)
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listbox = snack.Listbox(height, scroll = large, returnExit = 1)
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for option in options:
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listbox.append(option, cnt)
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if (position != None):
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listbox.setCurrent(position)
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grid = snack.GridForm(screen, title, 1, 3)
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grid.add(textbox, 0, 0)
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grid.add(listbox, 0, 1, padding = (0, 1, 0, 1))
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grid.add(buttonbar, 0, 2, growx = 1)
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retval = grid.runOnce()
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return (buttonbar.buttonPressed(retval), listbox.current())
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for option in options:
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args.append(str(cnt + 1))
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if (position != None):
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kw['default-item'] = str(position + 1)
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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)
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return ('cancel', None)
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choice = int(data) - 1
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return ('cancel', None)
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return (None, choice)
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return ('done', choice)
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sys.stdout.write("\n *** %s *** \n%s\n\n" % (title, text))
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maxcnt = len(str(len(options)))
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for option in options:
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sys.stdout.write("%*s. %s\n" % (maxcnt, cnt + 1, option))
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sys.stdout.write("\n%*s. Done\n" % (maxcnt, '0'))
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sys.stdout.write("%*s. Quit\n\n" % (maxcnt, 'q'))
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if (position != None):
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sys.stdout.write("Selection[%s]: " % str(position + 1))
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sys.stdout.write("Selection: ")
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inp = sys.stdin.readline()
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if (not inp.strip()):
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if (position != None):
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return (None, position)
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if (inp.strip() == 'q'):
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return ('cancel', None)
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choice = int(inp.strip())
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if (choice < 1) or (choice > len(options)):
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return (None, choice - 1)
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def error_dialog(screen, title, msg):
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width = width_fix(screen, width)
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buttonbar = snack.ButtonBar(screen, ['Ok'])
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textbox = snack.TextboxReflowed(width, msg)
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grid = snack.GridForm(screen, title, 1, 2)
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grid.add(textbox, 0, 0, padding = (0, 0, 0, 1))
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grid.add(buttonbar, 0, 1, growx = 1)
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call_dlg(dlgcmd, '--title', title, '--msgbox', msg, '6', str(width + width_extra))
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sys.stdout.write("\n%s: %s\n" % (title, msg))