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annotate Gtk/importFiebdc.py @ 11:fe9c55f86698

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author Miguel Ángel Bárcena Rodríguez <miguelangel@obraencurso.es>
date Wed, 24 Nov 2010 22:56:02 +0100
parents 55df0b15706b
children 60bc5117926c
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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 # pyArq-Presupuestos Modules
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34 from Generic import utils
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35 from Generic import globalVars
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36 from Generic import durusdatabase
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37 import gui
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38
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39 class FileSelectionWindow(object):
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40 """importFiebdc.FileSelectionWindow:
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41
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42 Description:
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43 Class to show the selection file window
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44 Constructor:
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45 importFiebdc.FileSelectionWindow(mainWindow, readFileMethod, budget,
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46 filename, cancelMethod, filetype)
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47 Ancestry:
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48 +-- object
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49 +-- FileSelectionWindow
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50 Atributes:
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51 "__mainWindow": gui.MainWindow object
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52 "__readFileMethod": Method to read the selected file
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53 "__budget": Budget object
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54 "__filename": "file"
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55 "__filetype": "budget" ,"database" or "durus"
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56 "__cancelMethod": Method to cancel the read method
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57 "__file": The selected file
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58 "__window": The selection file window
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59 Methods:
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60 __init__(self, mainWindow, readFileMethod, budget
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61 arg_List, cancelMethod)
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62 _launchProgressWindow(self, _file)
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63 _openFile(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, filetype):
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68 """def __init__(self, mainWindow, readFileMethod, budget,
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69 filename, cancelMethod, filetype)
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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 fileytpe: "budget", "database" or "durus".
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77 Sets the init atributes, creates the file selection window
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78 Connects the events:
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79 * clicked ok button: _openFile
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80 * clicked cancel button: destroy window
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81 * destroy event: _destroy
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82 """
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83 # TODO: Add file filter
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84 self.__mainWindow = mainWindow
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85 self.__readFileMethod = readFileMethod
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86 self.__budget = budget
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87 self.__filename = filename
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88 self.__filetype = filetype
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89 self.__cancelMethod = cancelMethod
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90 self.__file = None
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91 self.__window = gtk.FileChooserDialog(title=_("Open File"),
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92 action=gtk.FILE_CHOOSER_ACTION_OPEN,
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93 buttons=(gtk.STOCK_CANCEL,gtk.RESPONSE_CANCEL,
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94 gtk.STOCK_OPEN,gtk.RESPONSE_OK))
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95 self.__window.set_default_response(gtk.RESPONSE_OK)
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96 if self.__filetype == "budget" or self.__filetype == "database":
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97 self.__window.set_current_folder(globalVars.getHomePath("BUDGET"))
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98 else: # "durus"
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99 self.__window.set_current_folder(
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100 globalVars.getHomePath("DURUS-DATABASE"))
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101 if self.__window.run() == gtk.RESPONSE_OK:
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102 self._openFile(self.__window.get_filename())
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103 self.__window.destroy()
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104
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105 def _launchProgressWindow(self, file):
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106 """def _launchProgressWindow(self, file)
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107
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108 Launch the progress window
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109 """
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110 self.__filename = file
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111 _emptyPage = gui.EmptyPage(self.__mainWindow, self.__readFileMethod,
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112 self.__budget, self.__filename,
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113 self.__cancelMethod, self.__filetype)
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114 self.__mainWindow.appendEmptyPage(_emptyPage)
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115 _emptyPage.run()
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116
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117 def _openFile(self, filename):
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118 """def _openFile(self, filename)
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119
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120 filename: the filename to open
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121 If the selected file has a bc3 extension
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122 _launchProgressWindow is called
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123 """
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124 _file = filename
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125 if sys.getfilesystemencoding():
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126 _file = _file.decode(sys.getfilesystemencoding())
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127 #-#
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128 _file = _file.encode("utf-8")
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129 #-#
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130 self.__file = _file
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131 _filename = os.path.basename(self.__file)
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132 _filename_ext = _filename.split(".")[-1]
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133 if (self.__filetype == "budget" or self.__filetype == "database") and \
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134 _filename_ext != "bc3" and _filename_ext != "BC3":
1
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135 print _("The file must have 'bc3' extension")
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136 elif self.__filetype == "durus" and _filename_ext != "durus":
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137 print _("The file must have 'durus' extension")
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138 else:
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139 self.__window.destroy()
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140 # TODO: the file exits? is it not binary?, can it be readed?
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141 self._launchProgressWindow(self.__file)
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142
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143
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144 class ProgressWindow(object):
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145 """importFiebdc.ProgressWindow:
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146
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147 Description:
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148 Class to show the progress window and launch a thread to read
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149 the database file
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150 Constructor:
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151 importFiebdc.ProgressWindow(mainWindow, readFileMethod, budget,
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152 filename, cancelMethod)
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153 Ancestry:
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154 +-- object
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155 +-- ProgressWindow
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156 Atributes:
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157 "__mainWindow":
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158 "__readFileMethod":
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159 "__budget":
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160 "__filename":
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161 "__cancelMethod":
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162 "__children": Thread instance
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163 "__cancel": list with boolean values
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164 "__window": progress window widget
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165 "__progress_bar": probres bar widget
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166 "__label": label widget
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167 Methods:
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168 closeWindow(self)
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169 __init__(self, mainWindow, readFileMethod, budget
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170 filename, cancelMethod)
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171 closeWindow(self)
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172 main(self)
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173 _autoClose(self)
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174 _updateLabel(self, _time)
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175 _updateProgressBar(self)
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176 _launchTimeout(self)
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177 _launchChildren(self, mainWindow, readFileMethod, budget
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178 filename, cancelMethod)
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179 _cancelChildren(self,widget=None)
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180 _destroy(self, widget)
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181 _delete_event(self, widget, event)
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182
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183 """
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184 def __init__(self, mainWindow, readFileMethod, budget,
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185 filename, cancelMethod):
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186 """def __init__(self, mainWindow, readFileMethod, budget
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187 filename, cancelMethod)
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188
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189 mainWindow: gui.MainWindow object
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190 readFileMethod: Method to read the selected file
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191 budget: base.Budget object
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192 filenamer: "file"
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193 cancelMethod: Method to cancel the read method
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194 Sets the init atributes, creates the progress window
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195 Connects the events:
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196 * destroy signal: self._destroy
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197 * delete_event signal: self._delete_event
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198 * clicked cancel button: self._cancelChildren
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199 """
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200 self.__mainWindow = mainWindow
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201 self.__readFileMethod = readFileMethod
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202 self.__filename = filename
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203 self.__budget = budget
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204 self.__cancelMethod = cancelMethod
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205 self.__children = None
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206 self.__cancel = [False, False]
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207 self.__window = gtk.Window()
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208 self.__window.set_title(_("Loading file ..."))
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209 self.__window.connect("destroy", self._destroy)
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210 self.__window.connect("delete_event", self._delete_event)
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211 _Vbox1 = gtk.VBox(False, 0)
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212 self.__window.add(_Vbox1)
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213 _align = gtk.Alignment(0.5, 0.5, 0, 0)
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214 _align.show()
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215 _Vbox1.pack_start(_align, False, False, 5)
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216 self.__progress_bar = gtk.ProgressBar()
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217 self.__progress_bar.show()
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218 _align.add(self.__progress_bar)
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219 self.__label = gtk.Label()
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220 self.__label.set_text(_("Time: 0s"))
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221 self.__label.show()
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222 _Vbox1.add(self.__label)
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223 self.__throbber = gtk.Image()
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224 self.__throbber.set_from_file(globalVars.getAppPath("THROBBER-ICON"))
1
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225 _Vbox1.add(self.__throbber)
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226 self.__throbber.show()
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227 self.__animation = gtk.gdk.PixbufAnimation(globalVars.getAppPath("THROBBER-GIF"))
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228 _pixbuf = self.__throbber.get_pixbuf()
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229 self.__throbber.set_from_animation(self.__animation)
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230 _Hbox1 = gtk.HBox(False, 0)
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231 _Vbox1.add(_Hbox1)
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232 _button1 = gtk.Button(_("Cancel"))
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233 _button1.connect("clicked", self._cancelChildren)
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234 _button1.show()
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235 _Hbox1.pack_start(_button1, True, True, 0)
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236 _Hbox1.show()
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237 _Vbox1.show()
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238
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239 def main(self):
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240 """def main(self)
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241
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242 Launch the thread
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243 Launch the timeouts
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244 Shows window and starts the GTK+ event processing loop.
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245 """
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246
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247 self._launchChildren()
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248 self._launchTimeout()
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249 self.__window.show()
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250 gtk.main()
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251
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252 def closeWindow(self):
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253 """def closeWindow(self)
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254
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255 Sets the __children atribute to None
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256 This causes that the timiouts is ended and then the window is
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257 closed.
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258 This method is called from thread when it is finished
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259 """
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260 self.__children = None
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261
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262 def _launchTimeout(self):
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263 """def _launchTimeout(self)
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264
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265 Launch the timeouts:
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266 1- update progress bar
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267 2- update time labal
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268 3- If the other timetouts are stoped the window is closed
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269 """
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270 gobject.timeout_add(100, self._updateProgressBar)
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271 gobject.timeout_add(1000, self._updateLabel, time.time())
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272 self.__cancel = [False, False]
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273 gobject.timeout_add(1000, self._autoClose)
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274
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275 def _updateProgressBar(self):
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276 """def _updateProgressBar(self)
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277
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278 update progress bar in a timeout
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279 If the thread end or is canceled the timeout is stoped
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280 """
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281 if self.__children is None or self.__children.isCanceled() == True:
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282 self.__cancel[0] = True
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283 return False
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284 else:
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285 self.__progress_bar.pulse()
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286 return True
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287
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288 def _updateLabel(self, _time):
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289 """def _updateProgressBar(self)
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290
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291 update time label in a timeout
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292 If the thread end or is canceled the timeout is stoped
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293 """
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294 if self.__children is None or self.__children.isCanceled() == True:
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295 self.__cancel[1] = True
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296 return False
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297 else:
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298 _time = time.time() - _time
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299 self.__label.set_text(utils.mapping(_("Time: $1"),
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300 ("%.0f" %_time,)))
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301 return True
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302
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303 def _autoClose(self):
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304 """def _updateProgressBar(self)
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305
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306 If the time label and progress bar timeouts are stoped the window is
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307 closed and ist tiemeout is stoped
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308 """
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309 if self.__cancel == [ True, True ]:
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310 self.__window.destroy()
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311 return False
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312 else:
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313 return True
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314
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315 def _launchChildren(self):
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316 """_launchChildren(self)
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317
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318 Launch the thread to read the file
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319 """
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320 if self.__children is None:
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321 self.__children = Thread(self, self.__mainWindow,
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322 self.__readFileMethod, self.__budget, self.__filename,
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323 self.__cancelMethod)
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324 self.__children.start()
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325
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326 def _cancelChildren(self,widget=None):
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327 """_cancelChildren(self,widget=None)
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328
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329 Method connected to "clicked" singal of cancel button
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330 Stops the thread and close the window
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331 """
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332 if self.__children:
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333 self.__children.cancel()
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334 self.__window.destroy()
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335
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336 def _delete_event(self, widget, event):
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337 """_delete_event(self, widget, event)
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338
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339 widget: the widget where the event is emitted from
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340 event: the "gtk.gdk.Event"
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341 Method connected to "delete_event" signal of window widget
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342 This signal is emitted when a user press the close titlebar button.
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343 Stops the thread if exits.
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344 Returns True so the signal "destroy" is emitted.
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345 """
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346 if self.__children:
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347 self._cancelChildren()
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348 return True
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349
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350 def _destroy(self, widget):
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351 """_destroy(self, widget)
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352
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353 widget: the widget where the event is emitted from
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354 Method connected to "destroy" signal of window widget
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355 This signal is emited when the method connected to "delete_event"
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356 signal returns True or when the program call the destroy() method of
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357 the gtk.Window widget.
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358 The window is closed and the GTK+ event processing loop is ended.
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359 """
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360 gtk.main_quit()
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361
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362 class Thread(threading.Thread):
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363 """importFiebdc.Thread:
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364
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365 Description:
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366 Thread class to read a file without freeze the gui
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367 Constructor:
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368 importFiebdc.Thread(page, mainWindow,
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369 readFileMethod, budget, filename, cancelMethod, filetype)
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370 Ancestry:
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371 +--threading.Thread
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372 +-- importFiebdc.Thread
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373 Atributes:
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374 "__page": The page instance that launch the thread
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375 "__mainWindow": gui.MainWindow instance
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376 "__readFileMethod": Method to read the selected file
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377 "__budget
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378 "__filename": "file"
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379 "__cancelMethod": Method to cancel the read method
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380 "__filetype": "budget", "database" or "durus"
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381 "__cancel": Boolean value, True: the thread is stoped
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382 Methods:
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383 __init__(self, page, mainWindow,
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384 readFileMethod, arg_tuple, cancelMethod)
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385 run(self)
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386 cancel(self)
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387 isCanceled(self)
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388 """
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389
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390 def __init__(self, page, mainWindow,
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391 readFileMethod, budget, filename, cancelMethod, filetype):
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392 """def __init__(self, page, mainWindow,
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393 readFileMethod, budget, filename, cancelMethod)
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394
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395 page: The page instance that launch the thread
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396 mainWindow: gui.Mainwindow object
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397 readFileMethod: Method to read the selected file
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398 budget: base.Budget object
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399 filename: "file"
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400 cancelMethod: Method to cancel the read method
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0359329a1c26 Navigation buttons. Version of the data structure.
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401 filetype: "budget", "database" or "durus"
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402 Sets the instance atributes.
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403 """
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404 super(Thread, self).__init__()
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405 self.__page = page
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406 self.__mainWindow = mainWindow
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407 self.__readFileMethod = readFileMethod
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408 self.__budget = budget
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409 self.__filename = filename
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410 self.__cancelMethod = cancelMethod
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411 self.__filetype = filetype
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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 _budget = self.__readFileMethod(self.__budget, self.__filename,
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420 self.__page)
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421 if _budget 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 self.__page.threadFinishedSignal(_budget)
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426 if self.__filetype == "database":
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427 self.saveDurusDatabase()
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428 self.clear()
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429
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430 def saveDurusDatabase(self):
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431 _path = globalVars.getHomePath("DURUS-DATABASE")
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432 _file_whit_path_bc3 = self.__budget.filename
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433 _filename_bc3 = _file_whit_path_bc3.split("/")[-1]
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434 _filename = _filename_bc3.split(".")[-2]
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435 _file = _path + _filename + ".durus"
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436 print utils.mapping(_("Saving file: $1"), (_file,))
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437 _time = time.time()
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438 _durus_file = durusdatabase.DurusFile(_file,True)
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439 _durus_file.setBudget(self.__budget)
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440 _durus_file.close()
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441 print utils.mapping(_("Saving time: $1 seconds"),
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442 (("%.2f" %(time.time()-_time) ),))
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443
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444 def cancel(self):
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445 """cancel(self)
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446
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447 Sets the "__cancel" atribute to True and call "__cancelMethod" to stop
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448 read the file
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449 """
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450 self.__cancel = True
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451 self.__cancelMethod()
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452
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453 def isCanceled(self):
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454 """isCanceled(self)
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455
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456 Return True if the thread has been canceled
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457 """
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458 return self.__cancel
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459
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460 def clear(self):
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461 del self.__page
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462 del self.__mainWindow
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463 del self.__readFileMethod
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464 del self.__budget
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465 del self.__filename
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466 del self.__cancelMethod
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467 del self.__cancel