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annotate frontends/src/primitivus/progress.py @ 1023:8bae81e254a2

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core: added a getReady method which can be called by frontends to ensure that backend is fully initialised before doing anything + this ckeck is automatically done in asyncConnect
author Goffi <goffi@goffi.org>
date Thu, 15 May 2014 16:02:16 +0200
parents 1fe00f0c9a91
children e3a9ea76de35
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1 #!/usr/bin/python
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2 # -*- coding: utf-8 -*-
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4 # Primitivus: a SAT frontend
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5 # Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014 Jérôme Poisson (goffi@goffi.org)
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7 # This program is free software: you can redistribute it and/or modify
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8 # it under the terms of the GNU Affero General Public License as published by
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9 # the Free Software Foundation, either version 3 of the License, or
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10 # (at your option) any later version.
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12 # This program is distributed in the hope that it will be useful,
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13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 # GNU Affero General Public License for more details.
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17 # You should have received a copy of the GNU Affero General Public License
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18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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19
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20 from sat.core.i18n import _
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21 import urwid
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22 from urwid_satext import sat_widgets
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25 class Progress(urwid.WidgetWrap):
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27 def __init__(self, host):
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28 self.host = host
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29 self.progress_list = urwid.SimpleListWalker([])
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30 self.progress_dict = {}
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31 listbox = urwid.ListBox(self.progress_list)
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32 buttons = []
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33 buttons.append(sat_widgets.CustomButton(_('Clear progress list'), self.__onClear))
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34 max_len = max([button.getSize() for button in buttons])
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35 buttons_wid = urwid.GridFlow(buttons,max_len,1,0,'center')
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36 main_wid = sat_widgets.FocusFrame(listbox, footer=buttons_wid)
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37 urwid.WidgetWrap.__init__(self, main_wid)
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39 def addProgress(self, progress_id, message):
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40 profile = self.host.profile # TODO: manage multiple profiles
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41 mess_wid = urwid.Text(message)
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42 progr_wid = urwid.ProgressBar('progress_normal', 'progress_complete')
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43 column = urwid.Columns([mess_wid, progr_wid])
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44 self.progress_dict[(progress_id, profile)] = {'full':column,'progress':progr_wid,'state':'init'}
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45 self.progress_list.append(column)
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46 self.progressCB(self.host.loop, (progress_id, message, profile))
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48 def progressCB(self, loop, data):
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49 progress_id, message, profile = data
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50 data = self.host.bridge.getProgress(progress_id, profile)
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51 pbar = self.progress_dict[(progress_id, profile)]['progress'] #FIXME: must manage profiles
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52 if data:
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53 if self.progress_dict[(progress_id, profile)]['state'] == 'init':
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54 #first answer, we must construct the bar
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55 self.progress_dict[(progress_id, profile)]['state'] = 'progress'
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56 pbar.done = float(data['size'])
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58 pbar.set_completion(float(data['position']))
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59 self.updateNotBar()
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60 else:
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61 if self.progress_dict[(progress_id, profile)]['state'] == 'progress':
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62 self.progress_dict[(progress_id, profile)]['state'] = 'done'
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63 pbar.set_completion(pbar.done)
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64 self.updateNotBar()
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65 return
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67 loop.set_alarm_in(1,self.progressCB, (progress_id, message, profile))
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69 def __removeBar(self, progress_id, profile):
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70 wid = self.progress_dict[(progress_id, profile)]['full']
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71 self.progress_list.remove(wid)
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72 del(self.progress_dict[(progress_id, profile)])
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74 def __onClear(self, button):
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75 to_remove = []
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76 for progress_id, profile in self.progress_dict:
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77 if self.progress_dict[(progress_id, profile)]['state'] == 'done':
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78 to_remove.append((progress_id, profile))
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79 for progress_id, profile in to_remove:
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80 self.__removeBar(progress_id, profile)
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81 self.updateNotBar()
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83 def updateNotBar(self):
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84 if not self.progress_dict:
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85 self.host.setProgress(None)
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86 return
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87 progress = 0
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88 nb_bars = 0
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89 for progress_id, profile in self.progress_dict:
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90 pbar = self.progress_dict[(progress_id, profile)]['progress']
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91 progress += pbar.current/pbar.done*100
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92 nb_bars+=1
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93 av_progress = progress/float(nb_bars)
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94 self.host.setProgress(av_progress)
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95