def __init__(self):
self._unitDataInCategory = None
- self._calcsuppress = False
self._unit_sort_direction = False
self._value_sort_direction = False
self._units_sort_direction = False
self._find_result = [] # empty find result list
self._findIndex = 0 # default to find result number zero
- self._selected_category = '' # preset to no selected category
- self._selected_units = {} # empty dictionary for later use
+ self._selectedCategoryName = '' # preset to no selected category
+ self._defaultUnitForCategory = {} # empty dictionary for later use
#check to see if glade file is in current directory (user must be
# running from download untar directory)
widgets = gtk.glade.XML(gladePath)
break
else:
+ _moduleLogger.error("UI Descriptor not found!")
+ gtk.main_quit()
return
self._mainWindow = widgets.get_widget('mainWindow')
change_menu_label(widgets, 'exitMenuItem', _('Exit'))
change_menu_label(widgets, 'toolsMenuItem', _('Tools'))
change_menu_label(widgets, 'clearSelectionMenuItem', _('Clear selections'))
- change_menu_label(widgets, 'writeUnitsMenuItem', _('Write Units'))
change_menu_label(widgets, 'helpMenuItem', _('Help'))
change_menu_label(widgets, 'aboutMenuItem', _('About'))
change_menu_label(widgets, 'findButton', _('Find'))
self._unitValue = widgets.get_widget('unitValue')
self._previousUnitName = widgets.get_widget('previousUnitName')
self._previousUnitValue = widgets.get_widget('previousUnitValue')
- messagebox = widgets.get_widget('msgbox')
- messageboxtext = widgets.get_widget('msgboxtext')
self._unitSymbol = widgets.get_widget('unitSymbol')
self._previousUnitSymbol = widgets.get_widget('previousUnitSymbol')
self._searchLayout.hide()
self._findEntry = widgets.get_widget('findEntry')
self._findLabel = widgets.get_widget('findLabel')
- findButton = widgets.get_widget('findButton')
+ self._findButton = widgets.get_widget('findButton')
ToolTips = gtk.Tooltips()
- ToolTips.set_tip(findButton, _(u'Find unit (F6)'))
+ ToolTips.set_tip(self._findButton, _(u'Find unit (F6)'))
#insert a self._categoryColumnumn into the units list even though the heading will not be seen
renderer = gtk.CellRendererText()
"on_categoryView_select_row": self._on_click_category,
"on_unitValue_changed": self._on_unit_value_changed,
"on_previousUnitValue_changed": self._on_previous_unit_value_changed,
- "on_writeUnitsMenuItem_activate": self._on_user_write_units,
"on_findButton_clicked": self._on_find_activate,
"on_findEntry_activated": self._on_find_activate,
"on_findEntry_changed": self._on_findEntry_changed,
"on_aboutMenuItem_activate": self._on_about_clicked,
- "on_messagebox_ok_clicked": self.messagebox_ok_clicked,
"on_clearSelectionMenuItem_activate": self._on_user_clear_selections,
"on_unitsView_cursor_changed": self._on_click_unit,
"on_shortlistcheck_toggled": self._on_shortlist_changed,
#Retrieving previous selections from ~/.gonvert/selections.dat
selections = pickle.load(open(selectionsDatPath, 'r'))
#Restoring previous selections.
- #If the 'selected_unts' has been stored, then extract self._selected_units from selections.
+ #If the 'selected_unts' has been stored, then extract self._defaultUnitForCategory from selections.
if 'selected_units' in selections:
- self._selected_units = selections['selected_units']
- #Make sure that the 'self._selected_category' has been stored.
+ self._defaultUnitForCategory = selections['selected_units']
+ #Make sure that the 'self._selectedCategoryName' has been stored.
if 'selected_category' in selections:
#Match an available category to the previously selected category.
for counter in range(len(unit_data.UNIT_CATEGORIES)):
self._categoryView.set_cursor(0, self._categoryColumn, False)
self._categoryView.grab_focus()
- self.restore_units()
+ self._select_default_unit()
def _save_settings(self):
"""
should therefore only be called when exiting the program.
Update selections dictionary which consists of the following keys:
- 'self._selected_category': full name of selected category
- 'self._selected_units': self._selected_units dictionary which contains:
+ 'self._selectedCategoryName': full name of selected category
+ 'self._defaultUnitForCategory': self._defaultUnitForCategory dictionary which contains:
[categoryname: #1 displayed unit, #2 displayed unit]
"""
#Determine the contents of the selected category row
selected, iter = self._categoryView.get_selection().get_selected()
- self._selected_category = self._categoryModel.get_value(iter, 0)
+ self._selectedCategoryName = self._categoryModel.get_value(iter, 0)
selections = {
- 'selected_category': self._selected_category,
- 'selected_units': self._selected_units
+ 'selected_category': self._selectedCategoryName,
+ 'selected_units': self._defaultUnitForCategory
}
selectionsDatPath = "/".join((constants._data_path_, "selections.dat"))
pickle.dump(selections, open(selectionsDatPath, 'w'))
assert 0 < len(self._find_result)
#check if next find is in a new category (prevent category changes when unnecessary
- if self._selected_category != self._find_result[self._findIndex][0]:
+ if self._selectedCategoryName != self._find_result[self._findIndex][0]:
self._categoryView.set_cursor(
self._find_result[self._findIndex][2], self._categoryColumn, False
)
else:
self._searchLayout.show()
+ def _unit_model_cmp(self, sortedModel, leftItr, rightItr):
+ leftUnitText = self._unitModel.get_value(leftItr, 0)
+ rightUnitText = self._unitModel.get_value(rightItr, 0)
+ return cmp(leftUnitText, rightUnitText)
+
+ def _symbol_model_cmp(self, sortedModel, leftItr, rightItr):
+ leftSymbolText = self._unitModel.get_value(leftItr, 2)
+ rightSymbolText = self._unitModel.get_value(rightItr, 2)
+ return cmp(leftSymbolText, rightSymbolText)
+
+ def _value_model_cmp(self, sortedModel, leftItr, rightItr):
+ #special sorting exceptions for ascii values (instead of float values)
+ if self._selectedCategoryName == "Computer Numbers":
+ leftValue = self._unitModel.get_value(leftItr, 1)
+ rightValue = self._unitModel.get_value(rightItr, 1)
+ else:
+ leftValueText = self._unitModel.get_value(leftItr, 1)
+ leftValue = float(leftValueText) if leftValueText else 0.0
+
+ rightValueText = self._unitModel.get_value(rightItr, 1)
+ rightValue = float(rightValueText) if rightValueText else 0.0
+ return cmp(leftValue, rightValue)
+
+ def _get_column_sort_stuff(self):
+ columns = (
+ (self._unitNameColumn, "_unit_sort_direction", self._unit_model_cmp),
+ (self._unitValueColumn, "_value_sort_direction", self._value_model_cmp),
+ (self._unitSymbolColumn, "_units_sort_direction", self._symbol_model_cmp),
+ )
+ return columns
+
+ def _switch_category(self, category):
+ self._selectedCategoryName = category
+ self._unitDataInCategory = unit_data.UNIT_DESCRIPTIONS[self._selectedCategoryName]
+
+ #Fill up the units descriptions and clear the value cells
+ self._clear_visible_unit_data()
+ for key in unit_data.get_units(self._selectedCategoryName):
+ iter = self._unitModel.append()
+ self._unitModel.set(iter, 0, key, 1, '', 2, self._unitDataInCategory[key][1])
+ self._sortedUnitModel.sort_column_changed()
+
+ self._select_default_unit()
+
+ def _clear_visible_unit_data(self):
+ self._unitDescription.get_buffer().set_text("")
+ self._unitName.set_text('')
+ self._unitValue.set_text('')
+ self._unitSymbol.set_text('')
+
+ self._previousUnitName.set_text('')
+ self._previousUnitValue.set_text('')
+ self._previousUnitSymbol.set_text('')
+
+ self._unitModel.clear()
+
+ def _select_default_unit(self):
+ # Restore the previous historical settings of previously selected units
+ # in this newly selected category
+ defaultPrimary = unit_data.get_base_unit(self._selectedCategoryName)
+ defaultSecondary = ""
+ if self._selectedCategoryName in self._defaultUnitForCategory:
+ if self._defaultUnitForCategory[self._selectedCategoryName][0]:
+ defaultPrimary = self._defaultUnitForCategory[self._selectedCategoryName][0]
+ if self._defaultUnitForCategory[self._selectedCategoryName][1]:
+ defaultSecondary = self._defaultUnitForCategory[self._selectedCategoryName][1]
+
+ units = unit_data.get_units(self._selectedCategoryName)
+
+ #Restore oldest selection first.
+ if defaultPrimary:
+ unitIndex = units.index(defaultPrimary)
+ self._unitsView.set_cursor(unitIndex, self._unitNameColumn, True)
+
+ #Restore newest selection second.
+ if defaultSecondary:
+ unitIndex = units.index(defaultSecondary)
+ self._unitsView.set_cursor(unitIndex, self._unitNameColumn, True)
+
+ # select the text so user can start typing right away
+ self._unitValue.grab_focus()
+ self._unitValue.select_region(0, -1)
+
+ def _sanitize_value(self, userEntry):
+ if self._selectedCategoryName == "Computer Numbers":
+ if userEntry == '':
+ value = '0'
+ else:
+ value = userEntry
+ else:
+ if userEntry == '':
+ value = 0.0
+ else:
+ value = float(userEntry)
+ return value
+
def _on_shortlist_changed(self, *args):
try:
raise NotImplementedError("%s" % self._shortlistcheck.get_active())
try:
selectionsDatPath = "/".join((constants._data_path_, "selections.dat"))
os.remove(selectionsDatPath)
- self._selected_units = {}
+ self._defaultUnitForCategory = {}
except Exception:
_moduleLogger.exception("")
except Exception:
_moduleLogger.exception("")
- def _on_find_activate(self, a):
+ def _on_find_activate(self, *args):
try:
self._find_next()
+ self._findButton.grab_focus()
except Exception:
_moduleLogger.exception("")
- def _unit_model_cmp(self, sortedModel, leftItr, rightItr):
- leftUnitText = self._unitModel.get_value(leftItr, 0)
- rightUnitText = self._unitModel.get_value(rightItr, 0)
- return cmp(leftUnitText, rightUnitText)
-
- def _symbol_model_cmp(self, sortedModel, leftItr, rightItr):
- leftSymbolText = self._unitModel.get_value(leftItr, 2)
- rightSymbolText = self._unitModel.get_value(rightItr, 2)
- return cmp(leftSymbolText, rightSymbolText)
-
- def _value_model_cmp(self, sortedModel, leftItr, rightItr):
- #special sorting exceptions for ascii values (instead of float values)
- if self._selected_category == "Computer Numbers":
- leftValue = self._unitModel.get_value(leftItr, 1)
- rightValue = self._unitModel.get_value(rightItr, 1)
- else:
- leftValueText = self._unitModel.get_value(leftItr, 1)
- leftValue = float(leftValueText) if leftValueText else 0.0
-
- rightValueText = self._unitModel.get_value(rightItr, 1)
- rightValue = float(rightValueText) if rightValueText else 0.0
- return cmp(leftValue, rightValue)
-
- def _get_column_sort_stuff(self):
- columns = (
- (self._unitNameColumn, "_unit_sort_direction", self._unit_model_cmp),
- (self._unitValueColumn, "_value_sort_direction", self._value_model_cmp),
- (self._unitSymbolColumn, "_units_sort_direction", self._symbol_model_cmp),
- )
- return columns
-
def _on_click_unit_column(self, col):
"""
Sort the contents of the col when the user clicks on the title.
try:
#Determine which column requires sorting
columns = self._get_column_sort_stuff()
- for column, directionName, col_cmp in columns:
- column.set_sort_indicator(False)
for columnIndex, (maybeCol, directionName, col_cmp) in enumerate(columns):
if col is maybeCol:
direction = getattr(self, directionName)
setattr(self, directionName, not direction)
break
+ else:
+ maybeCol.set_sort_indicator(False)
else:
assert False, "Unknown column: %s" % (col.get_title(), )
except Exception:
_moduleLogger.exception("")
def _on_click_category(self, *args):
- #Clear out the description
- self._unitDescription.get_buffer().set_text("")
-
- #Determine the contents of the selected category row
- selected, iter = self._categoryView.get_selection().get_selected()
- self._selected_category = self._categoryModel.get_value(iter, 0)
-
- self._unitDataInCategory = unit_data.UNIT_DESCRIPTIONS[self._selected_category]
-
- #Fill up the units descriptions and clear the value cells
- self._unitModel.clear()
- for key in unit_data.get_units(self._selected_category):
- iter = self._unitModel.append()
- self._unitModel.set(iter, 0, key, 1, '', 2, self._unitDataInCategory[key][1])
- self._sortedUnitModel.sort_column_changed()
-
- self._unitName.set_text('')
- self._unitValue.set_text('')
- self._previousUnitName.set_text('')
- self._previousUnitValue.set_text('')
- self._unitSymbol.set_text('')
- self._previousUnitSymbol.set_text('')
-
- self.restore_units()
-
- def restore_units(self):
- # Restore the previous historical settings of previously selected units in this newly selected category
- #Since category has just been clicked, the list will be sorted already.
- if self._selected_category in self._selected_units:
- if self._selected_units[self._selected_category][0]:
- #self._selected_units[self._selected_category] = [selected_unit, self._selected_units[self._selected_category][0]]
-
- units = unit_data.UNIT_DESCRIPTIONS[self._selected_category].keys()
- units.sort()
- del units[0] # do not display .base_unit description key
-
- #Restore oldest selection first.
- if self._selected_units[self._selected_category][1]:
- unit_no = 0
- for unit in units:
- if unit == self._selected_units[self._selected_category][1]:
- self._unitsView.set_cursor(unit_no, self._unitNameColumn, True)
- unit_no = unit_no+1
-
- #Restore newest selection second.
- unit_no = 0
- for unit in units:
- if unit == self._selected_units[self._selected_category][0]:
- self._unitsView.set_cursor(unit_no, self._unitNameColumn, True)
- unit_no = unit_no+1
-
- # select the text so user can start typing right away
- self._unitValue.grab_focus()
- self._unitValue.select_region(0, -1)
-
- def _on_click_unit(self, row):
- self._calcsuppress = True #suppress calculations
-
- #Determine the contents of the selected row.
- selected, iter = self._unitsView.get_selection().get_selected()
-
- selected_unit = selected.get_value(iter, 0)
-
- unit_spec = self._unitDataInCategory[selected_unit]
-
- #Clear out the description
- text_model = gtk.TextBuffer(None)
- self._unitDescription.set_buffer(text_model)
+ try:
+ selected, iter = self._categoryView.get_selection().get_selected()
+ if iter is None:
+ # User is typing in an invalid string, not selecting any category
+ return
+ selectedCategory = self._categoryModel.get_value(iter, 0)
+ self._switch_category(selectedCategory)
+ except Exception:
+ _moduleLogger.exception("")
- enditer = text_model.get_end_iter()
- text_model.insert(enditer, unit_spec[2])
+ def _on_click_unit(self, *args):
+ try:
+ selected, iter = self._unitsView.get_selection().get_selected()
+ selected_unit = selected.get_value(iter, 0)
+ unit_spec = self._unitDataInCategory[selected_unit]
- if self._unitName.get_text() != selected_unit:
- self._previousUnitName.set_text(self._unitName.get_text())
- self._previousUnitValue.set_text(self._unitValue.get_text())
- if self._unitSymbol.get() == None:
- self._previousUnitSymbol.set_text('')
- else:
+ if self._unitName.get_text() != selected_unit:
+ self._previousUnitName.set_text(self._unitName.get_text())
+ self._previousUnitValue.set_text(self._unitValue.get_text())
self._previousUnitSymbol.set_text(self._unitSymbol.get())
- self._unitName.set_text(selected_unit)
-
- self._unitValue.set_text(selected.get_value(iter, 1))
-
- self._unitSymbol.set_text(unit_spec[1]) # put units into label text
- if self._unitValue.get_text() == '':
- if self._selected_category == "Computer Numbers":
- self._unitValue.set_text("0")
- else:
- self._unitValue.set_text("0.0")
- #For historical purposes, record this unit as the most recent one in this category.
- # Also, if a previous unit exists, then shift that previous unit to oldest unit.
- if self._selected_category in self._selected_units:
- if self._selected_units[self._selected_category][0]:
- self._selected_units[self._selected_category] = [selected_unit, self._selected_units[self._selected_category][0]]
- else:
- self._selected_units[self._selected_category] = [selected_unit, '']
-
- # select the text so user can start typing right away
- self._unitValue.grab_focus()
- self._unitValue.select_region(0, -1)
+ self._unitName.set_text(selected_unit)
+ self._unitValue.set_text(selected.get_value(iter, 1))
+ buffer = self._unitDescription.get_buffer()
+ buffer.set_text(unit_spec[2])
+ self._unitSymbol.set_text(unit_spec[1]) # put units into label text
- self._calcsuppress = False #enable calculations
-
- def messagebox_ok_clicked(self, a):
- messagebox.hide()
-
- def _on_user_write_units(self, a):
- ''"Write the list of categories and units to stdout for documentation purposes.''"
- messagebox_model = gtk.TextBuffer(None)
- messageboxtext.set_buffer(messagebox_model)
- 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)
- messagebox.show()
- while gtk.events_pending():
- gtk.mainiteration(False)
-
- total_categories = 0
- total_units = 0
- print 'gonvert-%s%s' % (
- constants.__version__,
- _(u' - Unit Conversion Utility - Convertible units listing: ')
- )
- for category_key in unit_data.UNIT_CATEGORIES:
- total_categories = total_categories + 1
- print category_key, ": "
- self._unitDataInCategory = unit_data.UNIT_DESCRIPTIONS[category_key]
- unit_keys = self._unitDataInCategory.keys()
- unit_keys.sort()
- del unit_keys[0] # do not display .base_unit description key
- for unit_key in unit_keys:
- total_units = total_units + 1
- print "\t", unit_key
- print total_categories, ' categories'
- print total_units, ' units'
-
- def _on_unit_value_changed(self, a):
- if self._calcsuppress:
- #self._calcsuppress = False
- return
- # determine if value to be calculated is empty
- if self._selected_category == "Computer Numbers":
- if self._unitValue.get_text() == '':
- value = '0'
- else:
- value = self._unitValue.get_text()
- else:
if self._unitValue.get_text() == '':
- value = 0.0
- else:
- value = float(self._unitValue.get_text())
-
- if self._unitName.get_text() != '':
- func, arg = self._unitDataInCategory[self._unitName.get_text()][0] #retrieve the conversion function and value from the selected unit
- base = apply(func.to_base, (value, arg, )) #determine the base unit value
+ if self._selectedCategoryName == "Computer Numbers":
+ self._unitValue.set_text("0")
+ else:
+ self._unitValue.set_text("0.0")
- keys = self._unitDataInCategory.keys()
- keys.sort()
- del keys[0]
- row = 0
+ self._defaultUnitForCategory[self._selectedCategoryName] = [
+ self._unitName.get_text(), self._previousUnitName.get_text()
+ ]
- #point to the first row
- iter = self._unitModel.get_iter_first()
+ # select the text so user can start typing right away
+ self._unitValue.grab_focus()
+ self._unitValue.select_region(0, -1)
+ except Exception:
+ _moduleLogger.exception("")
- while iter:
- #get the formula from the name at the row
- func, arg = self._unitDataInCategory[self._unitModel.get_value(iter, 0)][0]
+ def _on_unit_value_changed(self, *args):
+ try:
+ if self._unitName.get_text() == '':
+ return
+ if not self._unitValue.is_focus():
+ return
- #set the result in the value column
- self._unitModel.set(iter, 1, str(apply(func.from_base, (base, arg, ))))
+ #retrieve the conversion function and value from the selected unit
+ value = self._sanitize_value(self._unitValue.get_text())
+ func, arg = self._unitDataInCategory[self._unitName.get_text()][0]
+ base = func.to_base(value, arg)
- #point to the next row in the self._unitModel
- iter = self._unitModel.iter_next(iter)
+ #point to the first row
+ for row in self._unitModel:
+ func, arg = self._unitDataInCategory[row[0]][0]
+ row[1] = str(func.from_base(base, arg))
- # if the second row has a unit then update its value
+ # Update the secondary unit entry
if self._previousUnitName.get_text() != '':
- self._calcsuppress = True
func, arg = self._unitDataInCategory[self._previousUnitName.get_text()][0]
- self._previousUnitValue.set_text(str(apply(func.from_base, (base, arg, ))))
- self._calcsuppress = False
-
- def _on_previous_unit_value_changed(self, a):
- if self._calcsuppress == True:
- #self._calcsuppress = False
- return
- # determine if value to be calculated is empty
- if self._selected_category == "Computer Numbers":
- if self._previousUnitValue.get_text() == '':
- value = '0'
- else:
- value = self._previousUnitValue.get_text()
- else:
- if self._previousUnitValue.get_text() == '':
- value = 0.0
- else:
- value = float(self._previousUnitValue.get_text())
+ self._previousUnitValue.set_text(str(func.from_base(base, arg, )))
+ except Exception:
+ _moduleLogger.exception("")
- if self._previousUnitName.get_text() != '':
- func, arg = self._unitDataInCategory[self._previousUnitName.get_text()][0] #retrieve the conversion function and value from the selected unit
- base = apply(func.to_base, (value, arg, )) #determine the base unit value
+ def _on_previous_unit_value_changed(self, *args):
+ try:
+ if self._previousUnitName.get_text() == '':
+ return
+ if not self._previousUnitValue.is_focus():
+ return
- keys = self._unitDataInCategory.keys()
- keys.sort()
- del keys[0]
- row = 0
+ #retrieve the conversion function and value from the selected unit
+ value = self._sanitize_value(self._previousUnitValue.get_text())
+ func, arg = self._unitDataInCategory[self._previousUnitName.get_text()][0]
+ base = func.to_base(value, arg)
#point to the first row
- iter = self._unitModel.get_iter_first()
+ for row in self._unitModel:
+ func, arg = self._unitDataInCategory[row[0]][0]
+ row[1] = str(func.from_base(base, arg))
- while iter:
- #get the formula from the name at the row
- func, arg = self._unitDataInCategory[self._unitModel.get_value(iter, 0)][0]
-
- #set the result in the value column
- self._unitModel.set(iter, 1, str(apply(func.from_base, (base, arg, ))))
-
- #point to the next row in the self._unitModel
- iter = self._unitModel.iter_next(iter)
-
- # if the second row has a unit then update its value
- if self._unitName.get_text() != '':
- self._calcsuppress = True
- func, arg = self._unitDataInCategory[self._unitName.get_text()][0]
- self._unitValue.set_text(str(apply(func.from_base, (base, arg, ))))
- self._calcsuppress = False
+ # Update the primary unit entry
+ func, arg = self._unitDataInCategory[self._unitName.get_text()][0]
+ self._unitValue.set_text(str(func.from_base(base, arg, )))
+ except Exception:
+ _moduleLogger.exception("")
def _on_about_clicked(self, a):
dlg = gtk.AboutDialog()