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):
227 raise NotImplementedError("%s" % self._shortlistcheck.get_active())
229 def _on_edit_shortlist(self, a):
230 raise NotImplementedError("%s" % self._toggleShortList.get_active())
232 def _on_user_clear_selections(self, a):
233 selectionsDatPath = "/".join((constants._data_path_, "selections.dat"))
234 os.remove(selectionsDatPath)
235 self._selected_units = {}
237 def _on_user_exit(self, a):
239 This routine saves the selections to a file, and
240 should therefore only be called when exiting the program.
242 Update selections dictionary which consists of the following keys:
243 'self._selected_category': full name of selected category
244 'self._selected_units': self._selected_units dictionary which contains:
245 [categoryname: #1 displayed unit, #2 displayed unit]
247 #Determine the contents of the selected category row
248 selected, iter = self._categoryView.get_selection().get_selected()
249 self._selected_category = self._categoryModel.get_value(iter, 0)
252 'selected_category': self._selected_category,
253 'selected_units': self._selected_units
255 selectionsDatPath = "/".join((constants._data_path_, "selections.dat"))
256 pickle.dump(selections, open(selectionsDatPath, 'w'))
258 #Get last size of app and save it
260 'size': self._mainWindow.get_size()
262 windowDatPath = "/".join((constants._data_path_, "window.dat"))
263 pickle.dump(window_settings, open(windowDatPath, 'w'))
268 def _findEntry_changed(self, a):
269 #Clear out find results since the user wants to look for something new
270 self._find_result = [] #empty find result list
271 self._find_count = 0 #default to find result number zero
272 self._findLabel.set_text('') #clear result
274 def _on_find_key_press(self, a, b):
275 #Check if the key pressed was an ASCII key
277 #Check if the key pressed was the 'Enter' key
278 if ord(b.string[0]) == 13:
279 #Execute the find units function
280 self._on_user_find_units(1)
282 def _on_about_clicked(self, a):
283 dlg = gtk.AboutDialog()
284 dlg.set_name(constants.__pretty_app_name__)
285 dlg.set_version("%s-%d" % (constants.__version__, constants.__build__))
286 dlg.set_copyright("Copyright 2009 - GPL")
288 dlg.set_website("http://unihedron.com/projects/gonvert/gonvert.php")
289 dlg.set_authors(["Anthony Tekatch <anthony@unihedron.com>", "Ed Page <edpage@byu.net>"])
293 def messagebox_ok_clicked(self, a):
296 def _on_user_find_units(self, a):
297 #check if 'new find' or 'last find' or 'next-find'
299 #new-find = run the find algorithm which also selects the first found unit
300 # = self._find_count = 0 and self._find_result = []
302 #last-find = restart from top again
303 # = self._find_count = len(self._find_result)
305 #next-find = continue to next found location
306 # = self._find_count = 0 and len(self._find_result)>0
309 if len(self._find_result) == 0:
310 find_string = string.lower(string.strip(self._findEntry.get_text()))
311 #Make sure that a valid find string has been requested
312 if len(find_string)>0:
313 categories = unit_data.list_dic.keys()
315 found_a_unit = 0 #reset the 'found-a-unit' flag
317 for category in categories:
318 units = unit_data.list_dic[category].keys()
320 del units[0] # do not display .base_unit description key
323 if string.find(string.lower(unit), find_string) >= 0:
324 found_a_unit = 1 #indicate that a unit was found
325 #print "'", find_string, "'", " found at category = ", category, " unit = ", unit
326 self._find_result.append((category, unit, cat_no, unit_no))
330 if found_a_unit == 1:
331 #select the first found unit
333 #check if next find is in a new category (prevent category changes when unnecessary
334 if self._selected_category != self._find_result[self._find_count][0]:
335 self._categoryView.set_cursor(self._find_result[0][2], self._categoryColumn, False)
336 self._unitsView.set_cursor(self._find_result[0][3], self._unitNameColumn, True)
337 if len(self._find_result)>1:
338 self._findLabel.set_text(('Press Find for next unit. '+ str(len(self._find_result))+' result(s).'))
340 self._findLabel.set_text('Text not found') #Display error
341 else: #must be next-find or last-find
343 if self._find_count == len(self._find_result)-1:
346 self._categoryView.set_cursor(self._find_result[self._find_count][2], self._categoryColumn, False)
347 self._unitsView.set_cursor(self._find_result[self._find_count][3], self._unitNameColumn, True)
348 else: #must be next-find
349 self._find_count = self._find_count+1
350 #check if next find is in a new category (prevent category changes when unnecessary
351 if self._selected_category != self._find_result[self._find_count][0]:
352 self._categoryView.set_cursor(self._find_result[self._find_count][2], self._categoryColumn, False)
353 self._unitsView.set_cursor(self._find_result[self._find_count][3], self._unitNameColumn, True)
355 def _on_click_unit_column(self, col):
357 Sort the contents of the col when the user clicks on the title.
359 #Determine which column requires sorting
360 if col is self._unitNameColumn:
361 selectedUnitColumn = 0
362 self._unitNameColumn.set_sort_indicator(True)
363 self._unitValueColumn.set_sort_indicator(False)
364 self._unitSymbolColumn.set_sort_indicator(False)
365 self._unitNameColumn.set_sort_order(not self._unit_sort_direction)
366 elif col is self._unitValueColumn:
367 selectedUnitColumn = 1
368 self._unitNameColumn.set_sort_indicator(False)
369 self._unitValueColumn.set_sort_indicator(True)
370 self._unitSymbolColumn.set_sort_indicator(False)
371 self._unitValueColumn.set_sort_order(not self._value_sort_direction)
372 elif col is self._unitSymbolColumn:
373 selectedUnitColumn = 2
374 self._unitNameColumn.set_sort_indicator(False)
375 self._unitValueColumn.set_sort_indicator(False)
376 self._unitSymbolColumn.set_sort_indicator(True)
377 self._unitSymbolColumn.set_sort_order(not self._units_sort_direction)
379 assert False, "Unknown column: %s" % (col.get_title(), )
381 #declare a spot to hold the sorted list
384 #point to the first row
385 iter = self._unitModel.get_iter_first()
389 #grab all text from columns for sorting
391 #get the text from each column
392 unit_text = self._unitModel.get_value(iter, 0)
393 units_text = self._unitModel.get_value(iter, 2)
395 #do not bother sorting if the value column is empty
396 if self._unitModel.get_value(iter, 1) == '' and selectedUnitColumn == 1:
399 #special sorting exceptions for ascii values (instead of float values)
400 if self._selected_category == "Computer Numbers":
401 value_text = self._unitModel.get_value(iter, 1)
403 if self._unitModel.get_value(iter, 1) == None or unit_model.get_value(iter, 1) == '':
406 value_text = float(self._unitModel.get_value(iter, 1))
408 if selectedUnitColumn == 0:
409 sorted_list.append((unit_text, value_text, units_text))
410 elif selectedUnitColumn == 1:
411 sorted_list.append((value_text, unit_text, units_text))
413 sorted_list.append((units_text, value_text, unit_text))
415 #point to the next row in the self._unitModel
416 iter = self._unitModel.iter_next(iter)
419 #check if no calculations have been made yet (don't bother sorting)
423 if selectedUnitColumn == 0:
424 if not self._unit_sort_direction:
425 sorted_list.sort(lambda (x, xx, xxx), (y, yy, yyy): cmp(string.lower(x), string.lower(y)))
426 self._unit_sort_direction = True
428 sorted_list.sort(lambda (x, xx, xxx), (y, yy, yyy): cmp(string.lower(y), string.lower(x)))
429 self._unit_sort_direction = False
430 elif selectedUnitColumn == 1:
432 if not self._value_sort_direction:
433 self._value_sort_direction = True
435 sorted_list.reverse()
436 self._value_sort_direction = False
438 if not self._units_sort_direction:
439 sorted_list.sort(lambda (x, xx, xxx), (y, yy, yyy): cmp(string.lower(x), string.lower(y)))
440 self._units_sort_direction = True
442 sorted_list.sort(lambda (x, xx, xxx), (y, yy, yyy): cmp(string.lower(y), string.lower(x)))
443 self._units_sort_direction = False
445 #Clear out the previous list of units
446 self._unitModel = gtk.ListStore(gobject.TYPE_STRING, gobject.TYPE_STRING, gobject.TYPE_STRING)
447 self._unitsView.set_model(self._unitModel)
449 #colourize each row differently for easier reading
450 self._unitsView.set_property('rules_hint', 1)
452 #Clear out the description
453 text_model = gtk.TextBuffer(None)
454 self._unitDescription.set_buffer(text_model)
456 if selectedUnitColumn == 0:
457 for unit, value, units in sorted_list:
458 iter = self._unitModel.append()
459 self._unitModel.set(iter, 0, unit, 1, str(value), 2, units)
460 elif selectedUnitColumn == 1:
461 for value, unit, units in sorted_list:
462 iter = self._unitModel.append()
463 self._unitModel.set(iter, 0, unit, 1, str(value), 2, units)
465 for units, value, unit in sorted_list:
466 iter = self._unitModel.append()
467 self._unitModel.set(iter, 0, unit, 1, str(value), 2, units)
470 def _on_click_category(self, row):
471 #Clear out the previous list of units
472 self._unitModel = gtk.ListStore(gobject.TYPE_STRING, gobject.TYPE_STRING, gobject.TYPE_STRING)
473 self._unitsView.set_model(self._unitModel)
475 #Colourize each row alternately for easier reading
476 self._unitsView.set_property('rules_hint', 1)
478 #Clear out the description
479 text_model = gtk.TextBuffer(None)
480 self._unitDescription.set_buffer(text_model)
482 #Determine the contents of the selected category row
483 selected, iter = row.get_selection().get_selected()
485 self._selected_category = self._categoryModel.get_value(iter, 0)
487 self._unit_sort_direction = False
488 self._value_sort_direction = False
489 self._units_sort_direction = False
490 self._unitNameColumn.set_sort_indicator(False)
491 self._unitValueColumn.set_sort_indicator(False)
492 self._unitSymbolColumn.set_sort_indicator(False)
494 self._unitDataInCategory = unit_data.list_dic[selected.get_value(iter, 0)]
495 keys = self._unitDataInCategory.keys()
497 del keys[0] # do not display .base_unit description key
499 #Fill up the units descriptions and clear the value cells
501 iter = self._unitModel.append()
502 self._unitModel.set(iter, 0, key, 1, '', 2, self._unitDataInCategory[key][1])
504 self._unitName.set_text('')
505 self._unitValue.set_text('')
506 self._previousUnitName.set_text('')
507 self._previousUnitValue.set_text('')
508 self._unitSymbol.set_text('')
509 self._previousUnitSymbol.set_text('')
513 def restore_units(self):
514 # Restore the previous historical settings of previously selected units in this newly selected category
515 #Since category has just been clicked, the list will be sorted already.
516 if self._selected_category in self._selected_units:
517 if self._selected_units[self._selected_category][0]:
519 #self._selected_units[self._selected_category] = [selected_unit, self._selected_units[self._selected_category][0]]
521 units = unit_data.list_dic[self._selected_category].keys()
523 del units[0] # do not display .base_unit description key
525 #Restore oldest selection first.
526 if self._selected_units[self._selected_category][1]:
529 if unit == self._selected_units[self._selected_category][1]:
530 self._unitsView.set_cursor(unit_no, self._unitNameColumn, True)
533 #Restore newest selection second.
536 if unit == self._selected_units[self._selected_category][0]:
537 self._unitsView.set_cursor(unit_no, self._unitNameColumn, True)
540 # select the text so user can start typing right away
541 self._unitValue.grab_focus()
542 self._unitValue.select_region(0, -1)
544 def _on_button_released(self, row, a):
545 self._on_click_unit(row)
547 def _on_click_unit(self, row):
548 self._calcsuppress = True #suppress calculations
550 #Determine the contents of the selected row.
551 selected, iter = self._unitsView.get_selection().get_selected()
553 selected_unit = selected.get_value(iter, 0)
555 unit_spec = self._unitDataInCategory[selected_unit]
557 #Clear out the description
558 text_model = gtk.TextBuffer(None)
559 self._unitDescription.set_buffer(text_model)
561 enditer = text_model.get_end_iter()
562 text_model.insert(enditer, unit_spec[2])
564 if self._unitName.get_text() != selected_unit:
565 self._previousUnitName.set_text(self._unitName.get_text())
566 self._previousUnitValue.set_text(self._unitValue.get_text())
567 if self._unitSymbol.get() == None:
568 self._previousUnitSymbol.set_text('')
570 self._previousUnitSymbol.set_text(self._unitSymbol.get())
571 self._unitName.set_text(selected_unit)
573 self._unitValue.set_text(selected.get_value(iter, 1))
575 self._unitSymbol.set_text(unit_spec[1]) # put units into label text
576 if self._unitValue.get_text() == '':
577 if self._selected_category == "Computer Numbers":
578 self._unitValue.set_text("0")
580 self._unitValue.set_text("0.0")
582 #For historical purposes, record this unit as the most recent one in this category.
583 # Also, if a previous unit exists, then shift that previous unit to oldest unit.
584 if self._selected_category in self._selected_units:
585 if self._selected_units[self._selected_category][0]:
586 self._selected_units[self._selected_category] = [selected_unit, self._selected_units[self._selected_category][0]]
588 self._selected_units[self._selected_category] = [selected_unit, '']
590 # select the text so user can start typing right away
591 self._unitValue.grab_focus()
592 self._unitValue.select_region(0, -1)
594 self._calcsuppress = False #enable calculations
596 def _on_user_write_units(self, a):
597 ''"Write the list of categories and units to stdout for documentation purposes.''"
598 messagebox_model = gtk.TextBuffer(None)
599 messageboxtext.set_buffer(messagebox_model)
600 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)
602 while gtk.events_pending():
603 gtk.mainiteration(False)
604 category_keys = unit_data.list_dic.keys()
608 print 'gonvert-%s%s' % (
609 constants.__version__,
610 _(u' - Unit Conversion Utility - Convertible units listing: ')
612 for category_key in category_keys:
613 total_categories = total_categories + 1
614 print category_key, ": "
615 self._unitDataInCategory = unit_data.list_dic[category_key]
616 unit_keys = self._unitDataInCategory.keys()
618 del unit_keys[0] # do not display .base_unit description key
619 for unit_key in unit_keys:
620 total_units = total_units + 1
622 print total_categories, ' categories'
623 print total_units, ' units'
624 messagebox_model = gtk.TextBuffer(None)
625 messageboxtext.set_buffer(messagebox_model)
626 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)
629 if self._calcsuppress:
630 #self._calcsuppress = False
632 # determine if value to be calculated is empty
633 if self._selected_category == "Computer Numbers":
634 if self._unitValue.get_text() == '':
637 value = self._unitValue.get_text()
639 if self._unitValue.get_text() == '':
642 value = float(self._unitValue.get_text())
644 if self._unitName.get_text() != '':
645 func, arg = self._unitDataInCategory[self._unitName.get_text()][0] #retrieve the conversion function and value from the selected unit
646 base = apply(func.to_base, (value, arg, )) #determine the base unit value
648 keys = self._unitDataInCategory.keys()
653 #point to the first row
654 iter = self._unitModel.get_iter_first()
657 #get the formula from the name at the row
658 func, arg = self._unitDataInCategory[self._unitModel.get_value(iter, 0)][0]
660 #set the result in the value column
661 self._unitModel.set(iter, 1, str(apply(func.from_base, (base, arg, ))))
663 #point to the next row in the self._unitModel
664 iter = self._unitModel.iter_next(iter)
666 # if the second row has a unit then update its value
667 if self._previousUnitName.get_text() != '':
668 self._calcsuppress = True
669 func, arg = self._unitDataInCategory[self._previousUnitName.get_text()][0]
670 self._previousUnitValue.set_text(str(apply(func.from_base, (base, arg, ))))
671 self._calcsuppress = False
674 if self._calcsuppress == True:
675 #self._calcsuppress = False
677 # determine if value to be calculated is empty
678 if self._selected_category == "Computer Numbers":
679 if self._previousUnitValue.get_text() == '':
682 value = self._previousUnitValue.get_text()
684 if self._previousUnitValue.get_text() == '':
687 value = float(self._previousUnitValue.get_text())
689 if self._previousUnitName.get_text() != '':
690 func, arg = self._unitDataInCategory[self._previousUnitName.get_text()][0] #retrieve the conversion function and value from the selected unit
691 base = apply(func.to_base, (value, arg, )) #determine the base unit value
693 keys = self._unitDataInCategory.keys()
698 #point to the first row
699 iter = self._unitModel.get_iter_first()
702 #get the formula from the name at the row
703 func, arg = self._unitDataInCategory[self._unitModel.get_value(iter, 0)][0]
705 #set the result in the value column
706 self._unitModel.set(iter, 1, str(apply(func.from_base, (base, arg, ))))
708 #point to the next row in the self._unitModel
709 iter = self._unitModel.iter_next(iter)
711 # if the second row has a unit then update its value
712 if self._unitName.get_text() != '':
713 self._calcsuppress = True
714 func, arg = self._unitDataInCategory[self._unitName.get_text()][0]
715 self._unitValue.set_text(str(apply(func.from_base, (base, arg, ))))
716 self._calcsuppress = False
720 logging.basicConfig(level = logging.DEBUG)
722 os.makedirs(constants._data_path_)
731 if __name__ == "__main__":