Mercurial > pyarq-presupuestos

annotate Gtk/importFiebdc.py @ 1:2ac1551ad2ab version 0.0.0

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author Miguel Ángel Bárcena Rodríguez <miguelangel@obraencurso.es>
date Sun, 31 Oct 2010 20:07:33 +0100
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children 4e976a99efb9
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1 #!/usr/bin/python
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2 # -*- coding: utf-8 -*-
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3 ## File importFiebdc.py
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4 ## This file is part of pyArq-Presupuestos.
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5 ##
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6 ## Copyright (C) 2010 Miguel Ángel Bárcena Rodríguez
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7 ## <miguelangel@obraencurso.es>
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8 ##
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9 ## pyArq-Presupuestos is free software: you can redistribute it and/or modify
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10 ## it under the terms of the GNU General Public License as published by
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11 ## the Free Software Foundation, either version 3 of the License, or
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12 ## (at your option) any later version.
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13 ##
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14 ## pyArq-Presupuestos is distributed in the hope that it will be useful,
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15 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
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16 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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17 ## GNU General Public License for more details.
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18 ##
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19 ## You should have received a copy of the GNU General Public License
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20 ## along with this program. If not, see <http://www.gnu.org/licenses/>.
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21
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22 # Modules
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23 import sys
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24 import time
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25 import os.path
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26 import pygtk
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27 pygtk.require('2.0')
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28 import gtk
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29 import gobject
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30 import threading
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31 gobject.threads_init()
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32
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33 from Generic import utils
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34 from Generic import globals
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35 import gui
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36
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37 class FileSelectionWindow(object):
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38 """importFiebdc.FileSelectionWindow:
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39
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40 Description:
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41 Class to show the selection file window
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42 Constructor:
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43 importFiebdc.FileSelectionWindow(mainWindow, readFileMethod,
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44 budget, arg_List, cancelMethod)
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45 Ancestry:
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46 +-- object
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47 +-- FileSelectionWindow
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48 Atributes:
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49 "__mainWindow": gui.MainWindow object
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50 "__readFileMethod": Method to read the selected file
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51 "__budget": Budget object
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52 "__filename": "file"
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53 "__cancelMethod": Method to cancel the read method
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54 "__file": The selected file
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55 "__window": The selection file window
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56 Methods:
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57 __init__(self, mainWindow, readFileMethod, budget
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58 arg_List, cancelMethod)
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59 destroy(self, widget)
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60 main(self)
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61 _launchProgressWindow(self, _file)
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62 _openFile(self, w)
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63 _openFile2(Self, filename)
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64 """
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65
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66 def __init__(self, mainWindow, readFileMethod, budget, filename,
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67 cancelMethod):
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68 """def __init__(self, mainWindow, readFileMethod, budget,
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69 filename, cancelMethod)
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70
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71 mainWindow: gui.MainWindow object
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72 readFileMethod: Method to read the selected file
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73 budget: base.Budget object
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74 filename: "file"
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75 cancelMethod: Method to cancel the read method
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76 Sets the init atributes, creates the file selection window
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77 Connects the events:
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78 * clicked ok button: _openFile
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79 * clicked cancel button: destroy window
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80 * destroy event: _destroy
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81 """
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82 # TODO: Add file filter
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83 self.__mainWindow = mainWindow
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84 self.__readFileMethod = readFileMethod
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85 self.__budget = budget
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86 self.__filename = filename
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87 self.__cancelMethod = cancelMethod
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88 self.__file = None
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89 self.__window = gtk.FileChooserDialog(title=_("Open File"),
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90 action=gtk.FILE_CHOOSER_ACTION_OPEN,
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91 buttons=(gtk.STOCK_CANCEL,gtk.RESPONSE_CANCEL,
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92 gtk.STOCK_OPEN,gtk.RESPONSE_OK))
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93 self.__window.set_default_response(gtk.RESPONSE_OK)
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94 self.__window.set_filename(globals.getHomePath("BUDGET"))
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95 if self.__window.run() == gtk.RESPONSE_OK:
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96 self._openFile(self.__window.get_filename())
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97 self.__window.destroy()
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98
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99 def _launchProgressWindow(self, file):
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100 """def _launchProgressWindow(self, file)
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101
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102 Launch the progress window
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103 """
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104 self.__filename = file
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105
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106 _emptyPage = gui.EmptyPage(self.__mainWindow, self.__readFileMethod,
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107 self.__budget, self.__filename,
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108 self.__cancelMethod)
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109 self.__mainWindow.getNotebook().append_page(_emptyPage.widget,
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110 _emptyPage.title)
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111 self.__mainWindow.getPageList().append(_emptyPage)
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112 _emptyPage.run()
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113
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114 def _launchProgressTab(self, file):
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115 """def _launchProgressTab(self, file)
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116
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117 Launch the progress window
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118 """
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119 self.__filename = file
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120 print "abriendo fichero", self.__filename
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121
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122 def _openFile(self, filename):
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123 """def _openFile(self, filename)
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124
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125 filename: the filename to open
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126 If the selected file has a bc3 extension
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127 _launchProgressWindow is called
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128 """
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129 _file = filename
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130 if sys.getfilesystemencoding():
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131 _file = _file.decode(sys.getfilesystemencoding())
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132 #-#
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133 _file = _file.encode("utf-8")
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134 #-#
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135 self.__file = _file
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136 _filename = os.path.basename(self.__file)
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137 _filename_ext = _filename.split(".")[-1]
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138 if _filename_ext != "bc3" and _filename_ext != "BC3":
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139 print _("The file must have 'bc3' extension")
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140 else:
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141 self.__window.destroy()
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142 if self.__file:
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143 # TODO: the file exits? is it not binary?, can it be readed?
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144 self._launchProgressWindow(self.__file)
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145
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146
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147
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148 class ProgressWindow(object):
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149 """importFiebdc.ProgressWindow:
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150
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151 Description:
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152 Class to show the progress window and launch a thread to read
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153 the database file
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154 Constructor:
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155 importFiebdc.ProgressWindow(mainWindow, readFileMethod, budget,
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156 filename, cancelMethod)
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157 Ancestry:
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158 +-- object
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159 +-- ProgressWindow
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160 Atributes:
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161 "__mainWindow":
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162 "__readFileMethod":
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163 "__budget":
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164 "__filename":
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165 "__cancelMethod":
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166 "__children": Thread instance
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167 "__cancel": list with boolean values
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168 "__window": progress window widget
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169 "__progress_bar": probres bar widget
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170 "__label": label widget
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171 Methods:
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172 closeWindow(self)
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173 __init__(self, mainWindow, readFileMethod, budget
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174 filename, cancelMethod)
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175 closeWindow(self)
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176 main(self)
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177 _autoClose(self)
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178 _updateLabel(self, _time)
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179 _updateProgressBar(self)
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180 _launchTimeout(self)
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181 _launchChildren(self, mainWindow, readFileMethod, budget
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182 filename, cancelMethod)
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183 _cancelChildren(self,widget=None)
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184 _destroy(self, widget)
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185 _delete_event(self, widget, event)
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186
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187 """
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188 def __init__(self, mainWindow, readFileMethod, budget,
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189 filename, cancelMethod):
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190 """def __init__(self, mainWindow, readFileMethod, budget
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191 filename, cancelMethod)
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192
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193 mainWindow: gui.MainWindow object
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194 readFileMethod: Method to read the selected file
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195 budget: base.Budget object
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196 filenamer: "file"
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197 cancelMethod: Method to cancel the read method
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198 Sets the init atributes, creates the progress window
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199 Connects the events:
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200 * destroy signal: self._destroy
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201 * delete_event signal: self._delete_event
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202 * clicked cancel button: self._cancelChildren
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203 """
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204 self.__mainWindow = mainWindow
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205 self.__readFileMethod = readFileMethod
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206 self.__filename = filename
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207 self.__budget = budget
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208 self.__cancelMethod = cancelMethod
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209 self.__children = None
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210 self.__cancel = [False, False]
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211 self.__window = gtk.Window()
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212 self.__window.set_title(_("Loading file ..."))
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213 self.__window.connect("destroy", self._destroy)
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214 self.__window.connect("delete_event", self._delete_event)
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215 _Vbox1 = gtk.VBox(False, 0)
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216 self.__window.add(_Vbox1)
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217 _align = gtk.Alignment(0.5, 0.5, 0, 0)
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218 _align.show()
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219 _Vbox1.pack_start(_align, False, False, 5)
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220 self.__progress_bar = gtk.ProgressBar()
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221 self.__progress_bar.show()
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222 _align.add(self.__progress_bar)
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223 self.__label = gtk.Label()
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224 self.__label.set_text(_("Time: 0s"))
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225 self.__label.show()
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226 _Vbox1.add(self.__label)
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227 self.__throbber = gtk.Image()
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228 self.__throbber.set_from_file(globals.getAppPath("THROBBER-ICON"))
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229 _Vbox1.add(self.__throbber)
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230 self.__throbber.show()
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231 self.__animation = gtk.gdk.PixbufAnimation(globals.getAppPath("THROBBER-GIF"))
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232 _pixbuf = self.__throbber.get_pixbuf()
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233 self.__throbber.set_from_animation(self.__animation)
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234 _Hbox1 = gtk.HBox(False, 0)
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235 _Vbox1.add(_Hbox1)
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236 _button1 = gtk.Button(_("Cancel"))
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237 _button1.connect("clicked", self._cancelChildren)
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238 _button1.show()
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239 _Hbox1.pack_start(_button1, True, True, 0)
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240 _Hbox1.show()
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241 _Vbox1.show()
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242
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243 def main(self):
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244 """def main(self)
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245
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246 Launch the thread
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247 Launch the timeouts
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248 Shows window and starts the GTK+ event processing loop.
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249 """
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250
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251 self._launchChildren()
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252 self._launchTimeout()
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253 self.__window.show()
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254 gtk.main()
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255
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256 def closeWindow(self):
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257 """def closeWindow(self)
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258
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259 Sets the __children atribute to None
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260 This causes that the timiouts is ended and then the window is
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261 closed.
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262 This method is called from thread when it is finished
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263 """
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264 self.__children = None
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265
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266 def _launchTimeout(self):
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267 """def _launchTimeout(self)
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268
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269 Launch the timeouts:
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270 1- update progress bar
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271 2- update time labal
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272 3- If the other timetouts are stoped the window is closed
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273 """
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274 gobject.timeout_add(100, self._updateProgressBar)
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275 gobject.timeout_add(1000, self._updateLabel, time.time())
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276 self.__cancel = [False, False]
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277 gobject.timeout_add(1000, self._autoClose)
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278
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279 def _updateProgressBar(self):
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280 """def _updateProgressBar(self)
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281
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282 update progress bar in a timeout
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283 If the thread end or is canceled the timeout is stoped
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284 """
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285 if self.__children is None or self.__children.isCanceled() == True:
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286 self.__cancel[0] = True
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287 return False
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288 else:
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289 self.__progress_bar.pulse()
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290 return True
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291
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292 def _updateLabel(self, _time):
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293 """def _updateProgressBar(self)
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294
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295 update time label in a timeout
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296 If the thread end or is canceled the timeout is stoped
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297 """
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298 if self.__children is None or self.__children.isCanceled() == True:
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299 self.__cancel[1] = True
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300 return False
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301 else:
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302 _time = time.time() - _time
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303 self.__label.set_text(utils.mapping(_("Time: $1"),
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304 ("%.0f" %_time,)))
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305 return True
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306
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307 def _autoClose(self):
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308 """def _updateProgressBar(self)
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309
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310 If the time label and progress bar timeouts are stoped the window is
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311 closed and ist tiemeout is stoped
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312 """
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313 if self.__cancel == [ True, True ]:
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314 self.__window.destroy()
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315 return False
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316 else:
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317 return True
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318
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319 def _launchChildren(self):
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320 """_launchChildren(self)
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321
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322 Launch the thread to read the file
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323 """
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324 if self.__children is None:
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325 self.__children = Thread(self, self.__mainWindow,
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326 self.__readFileMethod, self.__budget, self.__filename,
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327 self.__cancelMethod)
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328 self.__children.start()
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329
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330 def _cancelChildren(self,widget=None):
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331 """_cancelChildren(self,widget=None)
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332
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333 Method connected to "clicked" singal of cancel button
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334 Stops the thread and close the window
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335 """
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336 if self.__children:
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337 self.__children.cancel()
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338 self.__window.destroy()
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339
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340 def _delete_event(self, widget, event):
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341 """_delete_event(self, widget, event)
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342
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343 widget: the widget where the event is emitted from
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344 event: the "gtk.gdk.Event"
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345 Method connected to "delete_event" signal of window widget
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346 This signal is emitted when a user press the close titlebar button.
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347 Stops the thread if exits.
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348 Returns True so the signal "destroy" is emitted.
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349 """
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350 if self.__children:
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351 self._cancelChildren()
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352 return True
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353
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354 def _destroy(self, widget):
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355 """_destroy(self, widget)
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356
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357 widget: the widget where the event is emitted from
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358 Method connected to "destroy" signal of window widget
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359 This signal is emited when the method connected to "delete_event"
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360 signal returns True or when the program call the destroy() method of
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361 the gtk.Window widget.
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362 The window is closed and the GTK+ event processing loop is ended.
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363 """
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364 gtk.main_quit()
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365
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366 class Thread(threading.Thread):
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367 """importFiebdc.Thread:
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368
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369 Description:
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370 Thread class to read a file without freeze the gui
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371 Constructor:
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372 importFiebdc.Thread(page, mainWindow,
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373 readFileMethod, arg_tuple, cancelMethod)
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374 Ancestry:
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375 +--threading.Thread
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376 +-- importFiebdc.Thread
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377 Atributes:
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378 "__page": The page instanca that launch the thread
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379 "__mainWindow": gui.MainWindow instance
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380 "__readFileMethod": Method to read the selected file
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381 "__arg_tuple": ("file", base.Budget())
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382 "__cancelMethod": Method to cancel the read method
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383 "__cancel": Boolean value, True: the thread is stoped
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384 Methods:
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385 __init__(self, page, mainWindow,
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386 readFileMethod, arg_tuple, cancelMethod)
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387 run(self)
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388 cancel(self)
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389 isCanceled(self)
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390 """
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391
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392 def __init__(self, page, mainWindow,
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393 readFileMethod, budget, filename, cancelMethod):
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394 """def __init__(self, page, mainWindow,
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395 readFileMethod, budget, filename, cancelMethod)
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396
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397 page: The page instance that launch the thread
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398 mainWindow: gui.Mainwindow object
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399 readFileMethod: Method to read the selected file
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400 budget: base.Budget object
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401 filename: "file"
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402 cancelMethod: Method to cancel the read method
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Miguel Ángel Bárcena Rodríguez <miguelangel@obraencurso.es>
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403 Sets the instance atributes.
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Miguel Ángel Bárcena Rodríguez <miguelangel@obraencurso.es>
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404 """
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405 super(Thread, self).__init__()
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406 self.__page = page
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407 self.__mainWindow = mainWindow
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408 self.__readFileMethod = readFileMethod
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409 self.__budget = budget
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410 self.__filename = filename
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411 self.__cancelMethod = cancelMethod
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412 self.__cancel = False
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413
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414 def run(self):
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415 """run(self)
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416
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417
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418 """
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419 _result = self.__readFileMethod(self.__budget, self.__filename,
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420 self.__page)
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421 if _result is None:
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422 self.__page.threadCanceled()
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423 else:
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424 _mainWindow = self.__mainWindow
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425 _mainWindow._addBudget(_result)
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426 self.__page.closeWindow()
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427 self.clear()
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428
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429 def cancel(self):
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430 """cancel(self)
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431
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432 Sets the "__cancel" atribute to True and call "__cancelMethod" to stop
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433 read the file
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434 """
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435 self.__cancel = True
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436 self.__cancelMethod()
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437
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438 def isCanceled(self):
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439 """isCanceled(self)
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440
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441 Return True if the thread has been canceled
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442 """
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443 return self.__cancel
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444
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445 def clear(self):
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446 del self.__page
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447 del self.__mainWindow
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448 del self.__readFileMethod
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449 del self.__budget
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450 del self.__filename
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451 del self.__cancelMethod
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452 del self.__cancel
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453
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454
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455
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456