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#!/usr/bin/python
"""
Written by Igor Pashev <pashev.igor@gmail.com>
The author has placed this work in the Public Domain,
thereby relinquishing all copyrights. Everyone is free
to use, modify, republish, sell or give away this work
without prior consent from anybody.
"""
from snack import *
import math
import apt.progress.base
import os
class ProgressMessage(object):
_text = None
@property
def text(self):
return self._text
@text.setter
def text(self, text):
self._text = text
self._textbox.setText(self._text)
self._refresh()
def _refresh(self):
self._form.draw()
self._screen.refresh()
def __init__(self, screen, width=60, title=' ', text=' '):
self._screen = screen
self._textbox = TextboxReflowed(width, text)
self._grid = Grid(1, 1)
self._grid.setField(self._textbox, 0, 0)
self._screen.gridWrappedWindow(self._grid, title)
self._form = Form()
self._form.add(self._textbox)
self._refresh()
def __del__(self):
self._screen.popWindow()
class ProgressBar(object):
_progress = 0
_top = 0
_text = None
_textbox = None
_screen = None
_form = None
_scale = None
_grid = None
_allow_back = False
@property
def text(self):
return self._text
@text.setter
def text(self, text):
self._text = text
self._textbox.setText(self._text)
self._refresh()
@property
def progress(self):
return self._progress
@text.setter
def progress(self, i):
if type(i) == 'str':
i = float(i)
if type(i) == 'float':
i = math.ceil(i)
if i > self._top:
i = self._top
i = int(i)
if i > self._progress or self._allow_back:
self._progress = int(i)
self._scale.set(self._progress)
self._refresh()
def advance(self, i=1):
self.progress = self._progress + i
def reset(self):
self._progress = 0;
self._refresh()
def _refresh(self):
self._form.draw()
self._screen.refresh()
def __init__(self, screen, width=60, title='', text=' ', top=100, allow_back=False):
self._allow_back = allow_back
self._screen = screen
self._top = top
self._textbox = TextboxReflowed(width, text)
self._scale = Scale(width, self._top)
self._scale.set(0)
self._grid = Grid(1, 2)
self._grid.setField(self._textbox, 0, 0)
self._grid.setField(self._scale, 0, 1)
self._screen.gridWrappedWindow(self._grid, title)
self._form = Form()
self._form.add(self._textbox)
self._form.add(self._scale)
self._refresh()
def __del__(self):
self._screen.popWindow()
class BaseProgress(object):
_progressbar = None
_screen = None
_title = None
_text = ''
def __init__(self, screen, title, text=''):
self._screen = screen
self._title = title
self._text = text
def _create_progressbar(self):
self._progressbar = ProgressBar(self._screen,
title=self._title, text=self._text)
def _destroy_progressbar(self):
del self._progressbar
self._progressbar = None
class DownloadProgress(apt.progress.base.AcquireProgress, BaseProgress):
def pulse(self, acquire):
self._progressbar.progress = (
((self.current_bytes + self.current_items) * 100.0) /
float(self.total_bytes + self.total_items))
return True
def start(self):
self._create_progressbar()
def stop(self):
self._destroy_progressbar()
class OpenProgress(apt.progress.base.OpProgress, BaseProgress):
def __init__(self, screen, title, text=''):
BaseProgress.__init__(self, screen, title, text)
def update(self, percent=None):
if not self._progressbar:
self._create_progressbar()
if percent:
self._progressbar.progress = percent
def done(self):
self._destroy_progressbar()
class InstallProgress(apt.progress.base.InstallProgress, BaseProgress):
_logfile = '/dev/null'
def __init__(self, screen, title, text='', logfile=None):
apt.progress.base.InstallProgress.__init__(self)
BaseProgress.__init__(self, screen, title, text)
if logfile:
self._logfile = logfile
def start_update(self):
self._create_progressbar()
def finish_update(self):
self._destroy_progressbar()
def status_change(self, pkg, percent, status):
self._progressbar.progress = percent
self._progressbar.text = status
def dpkg_status_change(self, pkg, status):
self._progressbar.progress = percent
self._progressbar.text = status + ' ' + pkg
def fork(self):
""" Shut up dpkg """
pid = os.fork()
if pid == 0:
log = os.open(self._logfile, os.O_WRONLY + os.O_CREAT)
os.dup2(log, 1)
os.dup2(log, 2)
return pid
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