20 _moduleLogger = logging.getLogger("gonvert_glade")
22 gettext.bindtextdomain('gonvert', '/usr/share/locale')
23 gettext.textdomain('gonvert')
27 def change_menu_label(widgets, labelname, newtext):
28 item_label = widgets.get_widget(labelname).get_children()[0]
29 item_label.set_text(newtext)
32 class Gonvert(object):
35 os.path.join(os.path.dirname(__file__), "gonvert.glade"),
36 os.path.join(os.path.dirname(__file__), "../data/gonvert.glade"),
37 os.path.join(os.path.dirname(__file__), "../lib/gonvert.glade"),
38 '/usr/lib/gonvert/gonvert.glade',
42 self._unitDataInCategory = None
43 self._calcsuppress = False
44 self._unit_sort_direction = False
45 self._value_sort_direction = False
46 self._units_sort_direction = False
48 self._find_result = [] # empty find result list
49 self._find_count = 0 # default to find result number zero
51 self._selected_category = '' # preset to no selected category
52 self._selected_units = {} # empty dictionary for later use
54 #check to see if glade file is in current directory (user must be
55 # running from download untar directory)
56 for gladePath in self._glade_files:
57 if os.path.isfile(gladePath):
58 homepath = os.path.dirname(gladePath)
59 pixmapspath = "/".join((homepath, "pixmaps"))
60 widgets = gtk.glade.XML(gladePath)
65 self._mainWindow = widgets.get_widget('mainWindow')
67 change_menu_label(widgets, 'fileMenuItem', _('File'))
68 change_menu_label(widgets, 'exitMenuItem', _('Exit'))
69 change_menu_label(widgets, 'toolsMenuItem', _('Tools'))
70 change_menu_label(widgets, 'clearSelectionMenuItem', _('Clear selections'))
71 change_menu_label(widgets, 'writeUnitsMenuItem', _('Write Units'))
72 change_menu_label(widgets, 'helpMenuItem', _('Help'))
73 change_menu_label(widgets, 'aboutMenuItem', _('About'))
74 change_menu_label(widgets, 'findButton', _('Find'))
76 self._shortlistcheck = widgets.get_widget('shortlistcheck')
77 self._toggleShortList = widgets.get_widget('toggleShortList')
79 self._categoryView = widgets.get_widget('categoryView')
81 self._unitsView = widgets.get_widget('unitsView')
82 self._unitsView_selection = self._unitsView.get_selection()
84 self._unitName = widgets.get_widget('unitName')
85 self._unitValue = widgets.get_widget('unitValue')
86 self._previousUnitName = widgets.get_widget('previousUnitName')
87 self._previousUnitValue = widgets.get_widget('previousUnitValue')
88 messagebox = widgets.get_widget('msgbox')
89 messageboxtext = widgets.get_widget('msgboxtext')
91 self._unitSymbol = widgets.get_widget('unitSymbol')
92 self._previousUnitSymbol = widgets.get_widget('previousUnitSymbol')
94 self._unitDescription = widgets.get_widget('unitDescription')
96 self._findEntry = widgets.get_widget('findEntry')
97 self._findLabel = widgets.get_widget('findLabel')
98 findButton = widgets.get_widget('findButton')
100 #insert a self._categoryColumnumn into the units list even though the heading will not be seen
101 renderer = gtk.CellRendererText()
102 self._unitNameColumn = gtk.TreeViewColumn(_('Unit Name'), renderer)
103 self._unitNameColumn.set_property('resizable', 1)
104 self._unitNameColumn.add_attribute(renderer, 'text', 0)
105 self._unitNameColumn.set_clickable(True)
106 self._unitNameColumn.connect("clicked", self._on_click_unit_column)
107 self._unitsView.append_column(self._unitNameColumn)
109 self._unitValueColumn = gtk.TreeViewColumn(_('Value'), renderer)
110 self._unitValueColumn.set_property('resizable', 1)
111 self._unitValueColumn.add_attribute(renderer, 'text', 1)
112 self._unitValueColumn.set_clickable(True)
113 self._unitValueColumn.connect("clicked", self._on_click_unit_column)
114 self._unitsView.append_column(self._unitValueColumn)
116 self._unitSymbolColumn = gtk.TreeViewColumn(_('Units'), renderer)
117 self._unitSymbolColumn.set_property('resizable', 1)
118 self._unitSymbolColumn.add_attribute(renderer, 'text', 2)
119 self._unitSymbolColumn.set_clickable(True)
120 self._unitSymbolColumn.connect("clicked", self._on_click_unit_column)
121 self._unitsView.append_column(self._unitSymbolColumn)
123 #Insert a column into the category list even though the heading will not be seen
124 renderer = gtk.CellRendererText()
125 self._categoryColumn = gtk.TreeViewColumn('Title', renderer)
126 self._categoryColumn.set_property('resizable', 1)
127 self._categoryColumn.add_attribute(renderer, 'text', 0)
128 self._categoryView.append_column(self._categoryColumn)
130 self._categoryModel = gtk.ListStore(gobject.TYPE_STRING)
131 self._categoryView.set_model(self._categoryModel)
132 #colourize each row differently for easier reading
133 self._categoryView.set_property('rules_hint', 1)
135 #Populate the catagories list
136 keys = unit_data.list_dic.keys()
139 iter = self._categoryModel.append()
140 self._categoryModel.set(iter, 0, key)
142 ToolTips = gtk.Tooltips()
143 ToolTips.set_tip(findButton, _(u'Find unit (F6)'))
145 #--------- connections to GUI ----------------
147 "on_exit_menu_activate": self._on_user_exit,
148 "on_main_window_destroy": self._on_user_exit,
149 "on_categoryView_select_row": self._on_click_category,
150 "on_unitsView__on_click_unit_column": self._on_click_unit_column,
151 "on_unitValue_changed": self.top,
152 "on_previousUnitValue_changed": self.bottom,
153 "on_writeUnitsMenuItem_activate": self._on_user_write_units,
154 "on_findButton_clicked": self._on_user_find_units,
155 "on_findEntry_key_press_event": self._on_find_key_press,
156 "on_findEntry_changed": self._findEntry_changed,
157 "on_aboutMenuItem_activate": self._on_about_clicked,
158 "on_messagebox_ok_clicked": self.messagebox_ok_clicked,
159 "on_clearSelectionMenuItem_activate": self._on_user_clear_selections,
160 "on_unitsView_cursor_changed": self._on_click_unit,
161 "on_unitsView_button_released": self._on_button_released,
162 "on_shortlistcheck_toggled": self._on_shortlist_changed,
163 "on_toggleShortList_activate": self._on_edit_shortlist,
165 widgets.signal_autoconnect(dic)
167 self._mainWindow.set_title('gonvert- %s - Unit Conversion Utility' % constants.__version__)
168 iconPath = pixmapspath + '/gonvert.png'
169 if os.path.exists(iconPath):
170 self._mainWindow.set_icon(gtk.gdk.pixbuf_new_from_file(iconPath))
172 _moduleLogger.warn("Error: Could not find gonvert icon: %s" % iconPath)
174 #Restore window size from previously saved settings if it exists and is valid.
175 windowDatPath = "/".join((constants._data_path_, "window.dat"))
176 if os.path.exists(windowDatPath):
177 #Retrieving previous window settings from ~/.gonvert/window.dat
178 saved_window = pickle.load(open(windowDatPath, "r"))
179 #If the 'size' has been stored, then extract size from saved_window.
180 if 'size' in saved_window:
181 a, b = saved_window['size']
182 self._mainWindow.resize(a, b)
184 #Maximize if no previous size was found
185 #self._mainWindow.maximize()
188 #Maximize if no previous window.dat file was found
189 #self._mainWindow.maximize()
192 #Restore selections from previously saved settings if it exists and is valid.
193 historical_catergory_found = False
194 selectionsDatPath = "/".join((constants._data_path_, "selections.dat"))
195 if os.path.exists(selectionsDatPath):
196 #Retrieving previous selections from ~/.gonvert/selections.dat
197 selections = pickle.load(open(selectionsDatPath, 'r'))
198 #Restoring previous selections.
200 #Make a list of categories to determine which one to select
201 categories = unit_data.list_dic.keys()
204 #If the 'selected_unts' has been stored, then extract self._selected_units from selections.
205 if 'selected_units' in selections:
206 self._selected_units = selections['selected_units']
207 #Make sure that the 'self._selected_category' has been stored.
208 if 'selected_category' in selections:
209 #Match an available category to the previously selected category.
210 for counter in range(len(categories)):
211 if selections['selected_category'] == categories[counter]:
212 # Restore the previously selected category.
213 self._categoryView.set_cursor(counter, self._categoryColumn, False)
214 self._categoryView.grab_focus()
215 historical_catergory_found = True
217 if not historical_catergory_found:
218 print "Couldn't find saved category, using default."
219 #If historical records were not kept then default to
220 # put the focus on the first category
221 self._categoryView.set_cursor(0, self._categoryColumn, False)
222 self._categoryView.grab_focus()
226 def _on_shortlist_changed(self, a):
228 if self._shortlistcheck.get_active():
233 def _on_edit_shortlist(self, a):
234 print "edit shortlist"
235 if self._toggleShortList.get_active():
240 def _on_user_clear_selections(self, a):
241 selectionsDatPath = "/".join((constants._data_path_, "selections.dat"))
242 os.remove(selectionsDatPath)
243 self._selected_units = {}
245 def _on_user_exit(self, a):
247 This routine saves the selections to a file, and
248 should therefore only be called when exiting the program.
250 Update selections dictionary which consists of the following keys:
251 'self._selected_category': full name of selected category
252 'self._selected_units': self._selected_units dictionary which contains:
253 [categoryname: #1 displayed unit, #2 displayed unit]
255 #Determine the contents of the selected category row
256 selected, iter = self._categoryView.get_selection().get_selected()
257 self._selected_category = self._categoryModel.get_value(iter, 0)
260 'selected_category': self._selected_category,
261 'selected_units': self._selected_units
263 selectionsDatPath = "/".join((constants._data_path_, "selections.dat"))
264 pickle.dump(selections, open(selectionsDatPath, 'w'))
266 #Get last size of app and save it
268 'size': self._mainWindow.get_size()
270 windowDatPath = "/".join((constants._data_path_, "window.dat"))
271 pickle.dump(window_settings, open(windowDatPath, 'w'))
276 def _findEntry_changed(self, a):
277 #Clear out find results since the user wants to look for something new
278 self._find_result = [] #empty find result list
279 self._find_count = 0 #default to find result number zero
280 self._findLabel.set_text('') #clear result
282 def _on_find_key_press(self, a, b):
283 #Check if the key pressed was an ASCII key
285 #Check if the key pressed was the 'Enter' key
286 if ord(b.string[0]) == 13:
287 #Execute the find units function
288 self._on_user_find_units(1)
290 def _on_about_clicked(self, a):
291 dlg = gtk.AboutDialog()
292 dlg.set_name(constants.__pretty_app_name__)
293 dlg.set_version("%s-%d" % (constants.__version__, constants.__build__))
294 dlg.set_copyright("Copyright 2009 - GPL")
296 dlg.set_website("http://unihedron.com/projects/gonvert/gonvert.php")
297 dlg.set_authors(["Anthony Tekatch <anthony@unihedron.com>", "Ed Page <edpage@byu.net>"])
301 def messagebox_ok_clicked(self, a):
304 def _on_user_find_units(self, a):
305 #check if 'new find' or 'last find' or 'next-find'
307 #new-find = run the find algorithm which also selects the first found unit
308 # = self._find_count = 0 and self._find_result = []
310 #last-find = restart from top again
311 # = self._find_count = len(self._find_result)
313 #next-find = continue to next found location
314 # = self._find_count = 0 and len(self._find_result)>0
317 if len(self._find_result) == 0:
318 find_string = string.lower(string.strip(self._findEntry.get_text()))
319 #Make sure that a valid find string has been requested
320 if len(find_string)>0:
321 categories = unit_data.list_dic.keys()
323 found_a_unit = 0 #reset the 'found-a-unit' flag
325 for category in categories:
326 units = unit_data.list_dic[category].keys()
328 del units[0] # do not display .base_unit description key
331 if string.find(string.lower(unit), find_string) >= 0:
332 found_a_unit = 1 #indicate that a unit was found
333 #print "'", find_string, "'", " found at category = ", category, " unit = ", unit
334 self._find_result.append((category, unit, cat_no, unit_no))
338 if found_a_unit == 1:
339 #select the first found unit
341 #check if next find is in a new category (prevent category changes when unnecessary
342 if self._selected_category != self._find_result[self._find_count][0]:
343 self._categoryView.set_cursor(self._find_result[0][2], self._categoryColumn, False)
344 self._unitsView.set_cursor(self._find_result[0][3], self._unitNameColumn, True)
345 if len(self._find_result)>1:
346 self._findLabel.set_text(('Press Find for next unit. '+ str(len(self._find_result))+' result(s).'))
348 self._findLabel.set_text('Text not found') #Display error
349 else: #must be next-find or last-find
351 if self._find_count == len(self._find_result)-1:
354 self._categoryView.set_cursor(self._find_result[self._find_count][2], self._categoryColumn, False)
355 self._unitsView.set_cursor(self._find_result[self._find_count][3], self._unitNameColumn, True)
356 else: #must be next-find
357 self._find_count = self._find_count+1
358 #check if next find is in a new category (prevent category changes when unnecessary
359 if self._selected_category != self._find_result[self._find_count][0]:
360 self._categoryView.set_cursor(self._find_result[self._find_count][2], self._categoryColumn, False)
361 self._unitsView.set_cursor(self._find_result[self._find_count][3], self._unitNameColumn, True)
363 def _on_click_unit_column(self, col):
365 Sort the contents of the col when the user clicks on the title.
367 #Determine which column requires sorting
368 if col is self._unitNameColumn:
369 selectedUnitColumn = 0
370 self._unitNameColumn.set_sort_indicator(True)
371 self._unitValueColumn.set_sort_indicator(False)
372 self._unitSymbolColumn.set_sort_indicator(False)
373 self._unitNameColumn.set_sort_order(not self._unit_sort_direction)
374 elif col is self._unitValueColumn:
375 selectedUnitColumn = 1
376 self._unitNameColumn.set_sort_indicator(False)
377 self._unitValueColumn.set_sort_indicator(True)
378 self._unitSymbolColumn.set_sort_indicator(False)
379 self._unitValueColumn.set_sort_order(not self._value_sort_direction)
380 elif col is self._unitSymbolColumn:
381 selectedUnitColumn = 2
382 self._unitNameColumn.set_sort_indicator(False)
383 self._unitValueColumn.set_sort_indicator(False)
384 self._unitSymbolColumn.set_sort_indicator(True)
385 self._unitSymbolColumn.set_sort_order(not self._units_sort_direction)
387 assert False, "Unknown column: %s" % (col.get_title(), )
389 #declare a spot to hold the sorted list
392 #point to the first row
393 iter = self._unitModel.get_iter_first()
397 #grab all text from columns for sorting
399 #get the text from each column
400 unit_text = self._unitModel.get_value(iter, 0)
401 units_text = self._unitModel.get_value(iter, 2)
403 #do not bother sorting if the value column is empty
404 if self._unitModel.get_value(iter, 1) == '' and selectedUnitColumn == 1:
407 #special sorting exceptions for ascii values (instead of float values)
408 if self._selected_category == "Computer Numbers":
409 value_text = self._unitModel.get_value(iter, 1)
411 if self._unitModel.get_value(iter, 1) == None or unit_model.get_value(iter, 1) == '':
414 value_text = float(self._unitModel.get_value(iter, 1))
416 if selectedUnitColumn == 0:
417 sorted_list.append((unit_text, value_text, units_text))
418 elif selectedUnitColumn == 1:
419 sorted_list.append((value_text, unit_text, units_text))
421 sorted_list.append((units_text, value_text, unit_text))
423 #point to the next row in the self._unitModel
424 iter = self._unitModel.iter_next(iter)
427 #check if no calculations have been made yet (don't bother sorting)
431 if selectedUnitColumn == 0:
432 if not self._unit_sort_direction:
433 sorted_list.sort(lambda (x, xx, xxx), (y, yy, yyy): cmp(string.lower(x), string.lower(y)))
434 self._unit_sort_direction = True
436 sorted_list.sort(lambda (x, xx, xxx), (y, yy, yyy): cmp(string.lower(y), string.lower(x)))
437 self._unit_sort_direction = False
438 elif selectedUnitColumn == 1:
440 if not self._value_sort_direction:
441 self._value_sort_direction = True
443 sorted_list.reverse()
444 self._value_sort_direction = False
446 if not self._units_sort_direction:
447 sorted_list.sort(lambda (x, xx, xxx), (y, yy, yyy): cmp(string.lower(x), string.lower(y)))
448 self._units_sort_direction = True
450 sorted_list.sort(lambda (x, xx, xxx), (y, yy, yyy): cmp(string.lower(y), string.lower(x)))
451 self._units_sort_direction = False
453 #Clear out the previous list of units
454 self._unitModel = gtk.ListStore(gobject.TYPE_STRING, gobject.TYPE_STRING, gobject.TYPE_STRING)
455 self._unitsView.set_model(self._unitModel)
457 #colourize each row differently for easier reading
458 self._unitsView.set_property('rules_hint', 1)
460 #Clear out the description
461 text_model = gtk.TextBuffer(None)
462 self._unitDescription.set_buffer(text_model)
464 if selectedUnitColumn == 0:
465 for unit, value, units in sorted_list:
466 iter = self._unitModel.append()
467 self._unitModel.set(iter, 0, unit, 1, str(value), 2, units)
468 elif selectedUnitColumn == 1:
469 for value, unit, units in sorted_list:
470 iter = self._unitModel.append()
471 self._unitModel.set(iter, 0, unit, 1, str(value), 2, units)
473 for units, value, unit in sorted_list:
474 iter = self._unitModel.append()
475 self._unitModel.set(iter, 0, unit, 1, str(value), 2, units)
478 def _on_click_category(self, row):
479 #Clear out the previous list of units
480 self._unitModel = gtk.ListStore(gobject.TYPE_STRING, gobject.TYPE_STRING, gobject.TYPE_STRING)
481 self._unitsView.set_model(self._unitModel)
483 #Colourize each row alternately for easier reading
484 self._unitsView.set_property('rules_hint', 1)
486 #Clear out the description
487 text_model = gtk.TextBuffer(None)
488 self._unitDescription.set_buffer(text_model)
490 #Determine the contents of the selected category row
491 selected, iter = row.get_selection().get_selected()
493 self._selected_category = self._categoryModel.get_value(iter, 0)
495 self._unit_sort_direction = False
496 self._value_sort_direction = False
497 self._units_sort_direction = False
498 self._unitNameColumn.set_sort_indicator(False)
499 self._unitValueColumn.set_sort_indicator(False)
500 self._unitSymbolColumn.set_sort_indicator(False)
502 self._unitDataInCategory = unit_data.list_dic[selected.get_value(iter, 0)]
503 keys = self._unitDataInCategory.keys()
505 del keys[0] # do not display .base_unit description key
507 #Fill up the units descriptions and clear the value cells
509 iter = self._unitModel.append()
510 self._unitModel.set(iter, 0, key, 1, '', 2, self._unitDataInCategory[key][1])
512 self._unitName.set_text('')
513 self._unitValue.set_text('')
514 self._previousUnitName.set_text('')
515 self._previousUnitValue.set_text('')
516 self._unitSymbol.set_text('')
517 self._previousUnitSymbol.set_text('')
521 def restore_units(self):
522 # Restore the previous historical settings of previously selected units in this newly selected category
523 #Since category has just been clicked, the list will be sorted already.
524 if self._selected_category in self._selected_units:
525 if self._selected_units[self._selected_category][0]:
527 #self._selected_units[self._selected_category] = [selected_unit, self._selected_units[self._selected_category][0]]
529 units = unit_data.list_dic[self._selected_category].keys()
531 del units[0] # do not display .base_unit description key
533 #Restore oldest selection first.
534 if self._selected_units[self._selected_category][1]:
537 if unit == self._selected_units[self._selected_category][1]:
538 self._unitsView.set_cursor(unit_no, self._unitNameColumn, True)
541 #Restore newest selection second.
544 if unit == self._selected_units[self._selected_category][0]:
545 self._unitsView.set_cursor(unit_no, self._unitNameColumn, True)
548 # select the text so user can start typing right away
549 self._unitValue.grab_focus()
550 self._unitValue.select_region(0, -1)
552 def _on_button_released(self, row, a):
553 self._on_click_unit(row)
555 def _on_click_unit(self, row):
556 self._calcsuppress = True #suppress calculations
558 #Determine the contents of the selected row.
559 selected, iter = self._unitsView.get_selection().get_selected()
561 selected_unit = selected.get_value(iter, 0)
563 unit_spec = self._unitDataInCategory[selected_unit]
565 #Clear out the description
566 text_model = gtk.TextBuffer(None)
567 self._unitDescription.set_buffer(text_model)
569 enditer = text_model.get_end_iter()
570 text_model.insert(enditer, unit_spec[2])
572 if self._unitName.get_text() != selected_unit:
573 self._previousUnitName.set_text(self._unitName.get_text())
574 self._previousUnitValue.set_text(self._unitValue.get_text())
575 if self._unitSymbol.get() == None:
576 self._previousUnitSymbol.set_text('')
578 self._previousUnitSymbol.set_text(self._unitSymbol.get())
579 self._unitName.set_text(selected_unit)
581 self._unitValue.set_text(selected.get_value(iter, 1))
583 self._unitSymbol.set_text(unit_spec[1]) # put units into label text
584 if self._unitValue.get_text() == '':
585 if self._selected_category == "Computer Numbers":
586 self._unitValue.set_text("0")
588 self._unitValue.set_text("0.0")
590 #For historical purposes, record this unit as the most recent one in this category.
591 # Also, if a previous unit exists, then shift that previous unit to oldest unit.
592 if self._selected_category in self._selected_units:
593 if self._selected_units[self._selected_category][0]:
594 self._selected_units[self._selected_category] = [selected_unit, self._selected_units[self._selected_category][0]]
596 self._selected_units[self._selected_category] = [selected_unit, '']
598 # select the text so user can start typing right away
599 self._unitValue.grab_focus()
600 self._unitValue.select_region(0, -1)
602 self._calcsuppress = False #enable calculations
604 def _on_user_write_units(self, a):
605 ''"Write the list of categories and units to stdout for documentation purposes.''"
606 messagebox_model = gtk.TextBuffer(None)
607 messageboxtext.set_buffer(messagebox_model)
608 messagebox_model.insert_at_cursor(_(u'The units are being written to stdout. You can capture this printout by starting gonvert from the command line as follows: \n$ gonvert > file.txt'), -1)
610 while gtk.events_pending():
611 gtk.mainiteration(False)
612 category_keys = unit_data.list_dic.keys()
616 print 'gonvert-%s%s' % (
617 constants.__version__,
618 _(u' - Unit Conversion Utility - Convertible units listing: ')
620 for category_key in category_keys:
621 total_categories = total_categories + 1
622 print category_key, ": "
623 self._unitDataInCategory = unit_data.list_dic[category_key]
624 unit_keys = self._unitDataInCategory.keys()
626 del unit_keys[0] # do not display .base_unit description key
627 for unit_key in unit_keys:
628 total_units = total_units + 1
630 print total_categories, ' categories'
631 print total_units, ' units'
632 messagebox_model = gtk.TextBuffer(None)
633 messageboxtext.set_buffer(messagebox_model)
634 messagebox_model.insert_at_cursor(_(u'The units list has been written to stdout. You can capture this printout by starting gonvert from the command line as follows: \n$ gonvert > file.txt'), -1)
637 if self._calcsuppress:
638 #self._calcsuppress = False
640 # determine if value to be calculated is empty
641 if self._selected_category == "Computer Numbers":
642 if self._unitValue.get_text() == '':
645 value = self._unitValue.get_text()
647 if self._unitValue.get_text() == '':
650 value = float(self._unitValue.get_text())
652 if self._unitName.get_text() != '':
653 func, arg = self._unitDataInCategory[self._unitName.get_text()][0] #retrieve the conversion function and value from the selected unit
654 base = apply(func.to_base, (value, arg, )) #determine the base unit value
656 keys = self._unitDataInCategory.keys()
661 #point to the first row
662 iter = self._unitModel.get_iter_first()
665 #get the formula from the name at the row
666 func, arg = self._unitDataInCategory[self._unitModel.get_value(iter, 0)][0]
668 #set the result in the value column
669 self._unitModel.set(iter, 1, str(apply(func.from_base, (base, arg, ))))
671 #point to the next row in the self._unitModel
672 iter = self._unitModel.iter_next(iter)
674 # if the second row has a unit then update its value
675 if self._previousUnitName.get_text() != '':
676 self._calcsuppress = True
677 func, arg = self._unitDataInCategory[self._previousUnitName.get_text()][0]
678 self._previousUnitValue.set_text(str(apply(func.from_base, (base, arg, ))))
679 self._calcsuppress = False
682 if self._calcsuppress == True:
683 #self._calcsuppress = False
685 # determine if value to be calculated is empty
686 if self._selected_category == "Computer Numbers":
687 if self._previousUnitValue.get_text() == '':
690 value = self._previousUnitValue.get_text()
692 if self._previousUnitValue.get_text() == '':
695 value = float(self._previousUnitValue.get_text())
697 if self._previousUnitName.get_text() != '':
698 func, arg = self._unitDataInCategory[self._previousUnitName.get_text()][0] #retrieve the conversion function and value from the selected unit
699 base = apply(func.to_base, (value, arg, )) #determine the base unit value
701 keys = self._unitDataInCategory.keys()
706 #point to the first row
707 iter = self._unitModel.get_iter_first()
710 #get the formula from the name at the row
711 func, arg = self._unitDataInCategory[self._unitModel.get_value(iter, 0)][0]
713 #set the result in the value column
714 self._unitModel.set(iter, 1, str(apply(func.from_base, (base, arg, ))))
716 #point to the next row in the self._unitModel
717 iter = self._unitModel.iter_next(iter)
719 # if the second row has a unit then update its value
720 if self._unitName.get_text() != '':
721 self._calcsuppress = True
722 func, arg = self._unitDataInCategory[self._unitName.get_text()][0]
723 self._unitValue.set_text(str(apply(func.from_base, (base, arg, ))))
724 self._calcsuppress = False
728 logging.basicConfig(level = logging.DEBUG)
730 os.makedirs(constants._data_path_)
739 if __name__ == "__main__":