Mercurial > pyarq-presupuestos

annotate Gtk/importFiebdc.py @ 10:d2cbc0278b30

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bug fix: A except is raised when a user splits a pane, closes one of the new panes and splits again.
author Miguel Ángel Bárcena Rodríguez <miguelangel@obraencurso.es>
date Fri, 19 Nov 2010 19:17:11 +0100
parents 55df0b15706b
children fe9c55f86698
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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.notebook.append_page(_emptyPage.widget,
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115 _emptyPage.title)
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116 self.__mainWindow.pageList.append(_emptyPage)
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117 _emptyPage.run()
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118
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119 def _openFile(self, filename):
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120 """def _openFile(self, filename)
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121
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122 filename: the filename to open
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123 If the selected file has a bc3 extension
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124 _launchProgressWindow is called
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125 """
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126 _file = filename
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127 if sys.getfilesystemencoding():
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128 _file = _file.decode(sys.getfilesystemencoding())
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129 #-#
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130 _file = _file.encode("utf-8")
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131 #-#
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132 self.__file = _file
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133 _filename = os.path.basename(self.__file)
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134 _filename_ext = _filename.split(".")[-1]
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135 if (self.__filetype == "budget" or self.__filetype == "database") and \
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136 _filename_ext != "bc3" and _filename_ext != "BC3":
1
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137 print _("The file must have 'bc3' extension")
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138 elif self.__filetype == "durus" and _filename_ext != "durus":
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139 print _("The file must have 'durus' extension")
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140 else:
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141 self.__window.destroy()
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142 # TODO: the file exits? is it not binary?, can it be readed?
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143 self._launchProgressWindow(self.__file)
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144
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145
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146 class ProgressWindow(object):
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147 """importFiebdc.ProgressWindow:
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148
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149 Description:
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150 Class to show the progress window and launch a thread to read
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151 the database file
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152 Constructor:
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153 importFiebdc.ProgressWindow(mainWindow, readFileMethod, budget,
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154 filename, cancelMethod)
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155 Ancestry:
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156 +-- object
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157 +-- ProgressWindow
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158 Atributes:
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159 "__mainWindow":
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160 "__readFileMethod":
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161 "__budget":
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162 "__filename":
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163 "__cancelMethod":
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164 "__children": Thread instance
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165 "__cancel": list with boolean values
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166 "__window": progress window widget
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167 "__progress_bar": probres bar widget
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168 "__label": label widget
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169 Methods:
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170 closeWindow(self)
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171 __init__(self, mainWindow, readFileMethod, budget
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172 filename, cancelMethod)
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173 closeWindow(self)
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174 main(self)
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175 _autoClose(self)
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176 _updateLabel(self, _time)
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177 _updateProgressBar(self)
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178 _launchTimeout(self)
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179 _launchChildren(self, mainWindow, readFileMethod, budget
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180 filename, cancelMethod)
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181 _cancelChildren(self,widget=None)
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182 _destroy(self, widget)
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183 _delete_event(self, widget, event)
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184
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185 """
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186 def __init__(self, mainWindow, readFileMethod, budget,
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187 filename, cancelMethod):
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188 """def __init__(self, mainWindow, readFileMethod, budget
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189 filename, cancelMethod)
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190
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191 mainWindow: gui.MainWindow object
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192 readFileMethod: Method to read the selected file
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193 budget: base.Budget object
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194 filenamer: "file"
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195 cancelMethod: Method to cancel the read method
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196 Sets the init atributes, creates the progress window
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197 Connects the events:
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198 * destroy signal: self._destroy
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199 * delete_event signal: self._delete_event
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200 * clicked cancel button: self._cancelChildren
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201 """
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202 self.__mainWindow = mainWindow
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203 self.__readFileMethod = readFileMethod
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204 self.__filename = filename
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205 self.__budget = budget
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206 self.__cancelMethod = cancelMethod
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207 self.__children = None
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208 self.__cancel = [False, False]
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209 self.__window = gtk.Window()
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210 self.__window.set_title(_("Loading file ..."))
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211 self.__window.connect("destroy", self._destroy)
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212 self.__window.connect("delete_event", self._delete_event)
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213 _Vbox1 = gtk.VBox(False, 0)
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214 self.__window.add(_Vbox1)
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215 _align = gtk.Alignment(0.5, 0.5, 0, 0)
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216 _align.show()
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217 _Vbox1.pack_start(_align, False, False, 5)
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218 self.__progress_bar = gtk.ProgressBar()
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219 self.__progress_bar.show()
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220 _align.add(self.__progress_bar)
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221 self.__label = gtk.Label()
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222 self.__label.set_text(_("Time: 0s"))
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223 self.__label.show()
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224 _Vbox1.add(self.__label)
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225 self.__throbber = gtk.Image()
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226 self.__throbber.set_from_file(globalVars.getAppPath("THROBBER-ICON"))
1
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227 _Vbox1.add(self.__throbber)
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228 self.__throbber.show()
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229 self.__animation = gtk.gdk.PixbufAnimation(globalVars.getAppPath("THROBBER-GIF"))
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230 _pixbuf = self.__throbber.get_pixbuf()
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231 self.__throbber.set_from_animation(self.__animation)
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232 _Hbox1 = gtk.HBox(False, 0)
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233 _Vbox1.add(_Hbox1)
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234 _button1 = gtk.Button(_("Cancel"))
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235 _button1.connect("clicked", self._cancelChildren)
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236 _button1.show()
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237 _Hbox1.pack_start(_button1, True, True, 0)
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238 _Hbox1.show()
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239 _Vbox1.show()
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240
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241 def main(self):
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242 """def main(self)
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243
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244 Launch the thread
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245 Launch the timeouts
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246 Shows window and starts the GTK+ event processing loop.
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247 """
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248
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249 self._launchChildren()
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250 self._launchTimeout()
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251 self.__window.show()
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252 gtk.main()
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253
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254 def closeWindow(self):
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255 """def closeWindow(self)
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256
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257 Sets the __children atribute to None
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258 This causes that the timiouts is ended and then the window is
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259 closed.
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260 This method is called from thread when it is finished
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261 """
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262 self.__children = None
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263
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264 def _launchTimeout(self):
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265 """def _launchTimeout(self)
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266
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267 Launch the timeouts:
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268 1- update progress bar
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269 2- update time labal
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270 3- If the other timetouts are stoped the window is closed
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271 """
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272 gobject.timeout_add(100, self._updateProgressBar)
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273 gobject.timeout_add(1000, self._updateLabel, time.time())
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274 self.__cancel = [False, False]
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275 gobject.timeout_add(1000, self._autoClose)
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276
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277 def _updateProgressBar(self):
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278 """def _updateProgressBar(self)
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279
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280 update progress bar in a timeout
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281 If the thread end or is canceled the timeout is stoped
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282 """
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283 if self.__children is None or self.__children.isCanceled() == True:
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284 self.__cancel[0] = True
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285 return False
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286 else:
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287 self.__progress_bar.pulse()
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288 return True
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289
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290 def _updateLabel(self, _time):
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291 """def _updateProgressBar(self)
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292
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293 update time label in a timeout
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294 If the thread end or is canceled the timeout is stoped
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295 """
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296 if self.__children is None or self.__children.isCanceled() == True:
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297 self.__cancel[1] = True
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298 return False
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299 else:
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300 _time = time.time() - _time
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301 self.__label.set_text(utils.mapping(_("Time: $1"),
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302 ("%.0f" %_time,)))
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303 return True
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304
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305 def _autoClose(self):
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306 """def _updateProgressBar(self)
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307
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308 If the time label and progress bar timeouts are stoped the window is
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309 closed and ist tiemeout is stoped
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310 """
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311 if self.__cancel == [ True, True ]:
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312 self.__window.destroy()
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313 return False
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314 else:
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315 return True
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316
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317 def _launchChildren(self):
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318 """_launchChildren(self)
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319
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320 Launch the thread to read the file
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321 """
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322 if self.__children is None:
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323 self.__children = Thread(self, self.__mainWindow,
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324 self.__readFileMethod, self.__budget, self.__filename,
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325 self.__cancelMethod)
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326 self.__children.start()
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327
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328 def _cancelChildren(self,widget=None):
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329 """_cancelChildren(self,widget=None)
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330
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331 Method connected to "clicked" singal of cancel button
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332 Stops the thread and close the window
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333 """
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334 if self.__children:
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335 self.__children.cancel()
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336 self.__window.destroy()
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337
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338 def _delete_event(self, widget, event):
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339 """_delete_event(self, widget, event)
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340
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341 widget: the widget where the event is emitted from
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342 event: the "gtk.gdk.Event"
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343 Method connected to "delete_event" signal of window widget
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344 This signal is emitted when a user press the close titlebar button.
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345 Stops the thread if exits.
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346 Returns True so the signal "destroy" is emitted.
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347 """
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348 if self.__children:
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349 self._cancelChildren()
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350 return True
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351
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352 def _destroy(self, widget):
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353 """_destroy(self, widget)
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354
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355 widget: the widget where the event is emitted from
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356 Method connected to "destroy" signal of window widget
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357 This signal is emited when the method connected to "delete_event"
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358 signal returns True or when the program call the destroy() method of
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359 the gtk.Window widget.
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360 The window is closed and the GTK+ event processing loop is ended.
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361 """
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362 gtk.main_quit()
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363
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364 class Thread(threading.Thread):
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365 """importFiebdc.Thread:
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366
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367 Description:
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368 Thread class to read a file without freeze the gui
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369 Constructor:
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370 importFiebdc.Thread(page, mainWindow,
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371 readFileMethod, budget, filename, cancelMethod, filetype)
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372 Ancestry:
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373 +--threading.Thread
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374 +-- importFiebdc.Thread
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375 Atributes:
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376 "__page": The page instance that launch the thread
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377 "__mainWindow": gui.MainWindow instance
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378 "__readFileMethod": Method to read the selected file
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379 "__budget
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380 "__filename": "file"
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381 "__cancelMethod": Method to cancel the read method
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382 "__filetype": "budget", "database" or "durus"
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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, filetype):
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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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403 filetype: "budget", "database" or "durus"
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404 Sets the instance atributes.
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405 """
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406 super(Thread, self).__init__()
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407 self.__page = page
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408 self.__mainWindow = mainWindow
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409 self.__readFileMethod = readFileMethod
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410 self.__budget = budget
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411 self.__filename = filename
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412 self.__cancelMethod = cancelMethod
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413 self.__filetype = filetype
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414 self.__cancel = False
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415
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416 def run(self):
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417 """run(self)
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418
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419
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420 """
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421 _budget = self.__readFileMethod(self.__budget, self.__filename,
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422 self.__page)
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423 if _budget is None:
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424 self.__page.threadCanceled()
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425 else:
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426 _mainWindow = self.__mainWindow
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427 _mainWindow._addBudget(_budget)
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428 self.__page.threadFinishedSignal(_budget)
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429 if self.__filetype == "database":
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430 self.saveDurusDatabase()
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431 self.clear()
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432
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433 def saveDurusDatabase(self):
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434 _path = globalVars.getHomePath("DURUS-DATABASE")
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435 _file_whit_path_bc3 = self.__budget.filename
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436 _filename_bc3 = _file_whit_path_bc3.split("/")[-1]
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437 _filename = _filename_bc3.split(".")[-2]
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438 _file = _path + _filename + ".durus"
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439 print utils.mapping(_("Saving file: $1"), (_file,))
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440 _time = time.time()
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441 _durus_file = durusdatabase.DurusFile(_file,True)
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442 _durus_file.setBudget(self.__budget)
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443 _durus_file.close()
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444 print utils.mapping(_("Saving time: $1 seconds"),
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445 (("%.2f" %(time.time()-_time) ),))
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446
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447 def cancel(self):
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448 """cancel(self)
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449
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450 Sets the "__cancel" atribute to True and call "__cancelMethod" to stop
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451 read the file
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452 """
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453 self.__cancel = True
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454 self.__cancelMethod()
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455
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456 def isCanceled(self):
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457 """isCanceled(self)
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458
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459 Return True if the thread has been canceled
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460 """
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461 return self.__cancel
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462
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463 def clear(self):
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464 del self.__page
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465 del self.__mainWindow
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466 del self.__readFileMethod
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467 del self.__budget
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468 del self.__filename
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469 del self.__cancelMethod
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470 del self.__cancel