git.maemo.org Git - gonvert/blob - src/gonvert_glade.py

   1 #!/usr/bin/env python
   2 # -*- coding: UTF8 -*-
   3
   4 from __future__ import with_statement
   5
   6 import os
   7 import math
   8 import pickle
   9 import logging
  10
  11 import pango
  12 import gobject
  13 import gtk
  14 import gtk.glade
  15 import gtk.gdk
  16
  17 import constants
  18 import hildonize
  19 import gtk_toolbox
  20 import unit_data
  21
  22 try:
  23         import gettext
  24 except ImportError:
  25         _ = lambda x: x
  26         gettext = None
  27 else:
  28         _ = gettext.gettext
  29
  30
  31 _moduleLogger = logging.getLogger("gonvert_glade")
  32
  33 if gettext is not None:
  34         gettext.bindtextdomain('gonvert', '/usr/share/locale')
  35         gettext.textdomain('gonvert')
  36
  37
  38 def change_menu_label(widgets, labelname, newtext):
  39         item_label = widgets.get_widget(labelname).get_children()[0]
  40         item_label.set_text(newtext)
  41
  42
  43 def split_number(number):
  44         try:
  45                 fractional, integer = math.modf(number)
  46         except TypeError:
  47                 integerDisplay = number
  48                 fractionalDisplay = ""
  49         else:
  50                 integerDisplay = str(integer)
  51                 fractionalDisplay = str(fractional)
  52                 if "e+" in integerDisplay:
  53                         integerDisplay = number
  54                         fractionalDisplay = ""
  55                 elif "e-" in fractionalDisplay and 0.0 < integer:
  56                         integerDisplay = number
  57                         fractionalDisplay = ""
  58                 elif "e-" in fractionalDisplay:
  59                         integerDisplay = ""
  60                         fractionalDisplay = number
  61                 else:
  62                         integerDisplay = integerDisplay.split(".", 1)[0] + "."
  63                         fractionalDisplay = fractionalDisplay.rsplit(".", 1)[-1]
  64
  65         return integerDisplay, fractionalDisplay
  66
  67
  68 class Gonvert(object):
  69
  70         _glade_files = [
  71                 os.path.join(os.path.dirname(__file__), "gonvert.glade"),
  72                 os.path.join(os.path.dirname(__file__), "../data/gonvert.glade"),
  73                 os.path.join(os.path.dirname(__file__), "../lib/gonvert.glade"),
  74                 '/usr/share/gonvert/gonvert.glade',
  75                 '/usr/lib/gonvert/gonvert.glade',
  76         ]
  77
  78         UNITS_NAME_IDX = 0
  79         UNITS_VALUE_IDX = 1
  80         UNITS_SYMBOL_IDX = 2
  81         UNITS_INTEGER_IDX = 3
  82         UNITS_FRACTION_IDX = 4
  83
  84         def __init__(self):
  85                 self._unitDataInCategory = None
  86                 self._unit_sort_direction = False
  87                 self._value_sort_direction = False
  88                 self._units_sort_direction = False
  89                 self._isFullScreen = False
  90                 self._clipboard = gtk.clipboard_get()
  91
  92                 self._find_result = [] # empty find result list
  93                 self._findIndex = 0 # default to find result number zero
  94
  95                 self._selectedCategoryName = '' # preset to no selected category
  96                 self._defaultUnitForCategory = {} # empty dictionary for later use
  97
  98                 #check to see if glade file is in current directory (user must be
  99                 # running from download untar directory)
 100                 for gladePath in self._glade_files:
 101                         if os.path.isfile(gladePath):
 102                                 homepath = os.path.dirname(gladePath)
 103                                 pixmapspath = "/".join((homepath, "pixmaps"))
 104                                 widgets = gtk.glade.XML(gladePath)
 105                                 break
 106                 else:
 107                         _moduleLogger.error("UI Descriptor not found!")
 108                         gtk.main_quit()
 109                         return
 110
 111                 self._mainWindow = widgets.get_widget('mainWindow')
 112                 self._app = hildonize.get_app_class()()
 113                 self._mainWindow = hildonize.hildonize_window(self._app, self._mainWindow)
 114
 115                 change_menu_label(widgets, 'fileMenuItem', _('File'))
 116                 change_menu_label(widgets, 'exitMenuItem', _('Exit'))
 117                 change_menu_label(widgets, 'helpMenuItem', _('Help'))
 118                 change_menu_label(widgets, 'aboutMenuItem', _('About'))
 119
 120                 self._categorySelectionButton = widgets.get_widget("categorySelectionButton")
 121                 self._categoryView = widgets.get_widget('categoryView')
 122
 123                 self._unitsView = widgets.get_widget('unitsView')
 124                 self._unitsView.set_property('rules_hint', 1)
 125                 self._unitsView_selection = self._unitsView.get_selection()
 126
 127                 self._unitName = widgets.get_widget('unitName')
 128                 self._unitValue = widgets.get_widget('unitValue')
 129                 self._previousUnitName = widgets.get_widget('previousUnitName')
 130                 self._previousUnitValue = widgets.get_widget('previousUnitValue')
 131
 132                 self._unitSymbol = widgets.get_widget('unitSymbol')
 133                 self._previousUnitSymbol = widgets.get_widget('previousUnitSymbol')
 134
 135                 self._unitDescription = widgets.get_widget('unitDescription')
 136
 137                 self._searchLayout = widgets.get_widget('searchLayout')
 138                 self._searchLayout.hide()
 139                 self._findEntry = widgets.get_widget('findEntry')
 140                 self._findLabel = widgets.get_widget('findLabel')
 141                 self._findButton = widgets.get_widget('findButton')
 142                 self._closeSearchButton = widgets.get_widget('closeSearchButton')
 143
 144                 self._unitsNameRenderer = gtk.CellRendererText()
 145                 self._unitsNameRenderer.set_property("scale", 0.75)
 146                 if constants.FORCE_HILDON_LIKE:
 147                         self._unitsNameRenderer.set_property("ellipsize", pango.ELLIPSIZE_END)
 148                         self._unitsNameRenderer.set_property("width-chars", 5)
 149                 self._unitNameColumn = gtk.TreeViewColumn(_('Name'), self._unitsNameRenderer)
 150                 self._unitNameColumn.set_property('resizable', True)
 151                 self._unitNameColumn.add_attribute(self._unitsNameRenderer, 'text', self.UNITS_NAME_IDX)
 152                 self._unitNameColumn.set_clickable(True)
 153                 self._unitNameColumn.connect("clicked", self._on_click_unit_column)
 154                 self._unitsView.append_column(self._unitNameColumn)
 155
 156                 renderer = gtk.CellRendererText()
 157                 renderer.set_property("xalign", 1.0)
 158                 renderer.set_property("alignment", pango.ALIGN_RIGHT)
 159                 hildonize.set_cell_thumb_selectable(renderer)
 160                 self._unitIntegerColumn = gtk.TreeViewColumn(_('Value'), renderer)
 161                 self._unitIntegerColumn.set_property('resizable', True)
 162                 self._unitIntegerColumn.add_attribute(renderer, 'text', self.UNITS_INTEGER_IDX)
 163                 self._unitIntegerColumn.set_clickable(True)
 164                 self._unitIntegerColumn.connect("clicked", self._on_click_unit_column)
 165                 self._unitsView.append_column(self._unitIntegerColumn)
 166
 167                 renderer = gtk.CellRendererText()
 168                 renderer.set_property("xalign", 0.0)
 169                 renderer.set_property("alignment", pango.ALIGN_LEFT)
 170                 renderer.set_property("scale", 0.75)
 171                 self._unitFractionalColumn = gtk.TreeViewColumn(_(''), renderer)
 172                 self._unitFractionalColumn.set_property('resizable', True)
 173                 self._unitFractionalColumn.add_attribute(renderer, 'text', self.UNITS_FRACTION_IDX)
 174                 self._unitFractionalColumn.set_clickable(True)
 175                 self._unitFractionalColumn.connect("clicked", self._on_click_unit_column)
 176                 self._unitsView.append_column(self._unitFractionalColumn)
 177
 178                 renderer = gtk.CellRendererText()
 179                 renderer.set_property("ellipsize", pango.ELLIPSIZE_END)
 180                 #renderer.set_property("scale", 0.5)
 181                 self._unitSymbolColumn = gtk.TreeViewColumn(_('Units'), renderer)
 182                 self._unitSymbolColumn.set_property('resizable', True)
 183                 self._unitSymbolColumn.add_attribute(renderer, 'text', self.UNITS_SYMBOL_IDX)
 184                 self._unitSymbolColumn.set_clickable(True)
 185                 self._unitSymbolColumn.connect("clicked", self._on_click_unit_column)
 186                 self._unitsView.append_column(self._unitSymbolColumn)
 187
 188                 self._unitModel = gtk.ListStore(
 189                         gobject.TYPE_STRING, # UNITS_NAME_IDX
 190                         gobject.TYPE_STRING, # UNITS_VALUE_IDX
 191                         gobject.TYPE_STRING, # UNITS_SYMBOL_IDX
 192                         gobject.TYPE_STRING, # UNITS_INTEGER_IDX
 193                         gobject.TYPE_STRING, # UNITS_FRACTION_IDX
 194                 )
 195                 self._sortedUnitModel = gtk.TreeModelSort(self._unitModel)
 196                 columns = self._get_column_sort_stuff()
 197                 for columnIndex, (column, sortDirection, col_cmp) in enumerate(columns):
 198                         self._sortedUnitModel.set_sort_func(columnIndex, col_cmp)
 199                 self._unitsView.set_model(self._sortedUnitModel)
 200
 201                 #Insert a column into the category list even though the heading will not be seen
 202                 renderer = gtk.CellRendererText()
 203                 self._categoryColumn = gtk.TreeViewColumn('Title', renderer)
 204                 self._categoryColumn.set_property('resizable', 1)
 205                 self._categoryColumn.add_attribute(renderer, 'text', 0)
 206                 self._categoryView.append_column(self._categoryColumn)
 207
 208                 self._categoryModel = gtk.ListStore(gobject.TYPE_STRING)
 209                 self._categoryView.set_model(self._categoryModel)
 210                 #colourize each row differently for easier reading
 211                 self._categoryView.set_property('rules_hint', 1)
 212
 213                 #Populate the catagories list
 214                 for key in unit_data.UNIT_CATEGORIES:
 215                         row = (key, )
 216                         self._categoryModel.append(row)
 217
 218                 #--------- connections to GUI ----------------
 219                 self._mainWindow.connect("destroy", self._on_user_exit)
 220                 self._mainWindow.connect("key-press-event", self._on_key_press)
 221                 self._mainWindow.connect("window-state-event", self._on_window_state_change)
 222                 self._categorySelectionButton.connect("clicked", self._on_category_selector_clicked)
 223                 self._categoryView.connect("cursor-changed", self._on_click_category)
 224                 self._findButton.connect("clicked", self._on_find_activate)
 225                 self._findEntry.connect("activate", self._on_find_activate)
 226                 self._findEntry.connect("changed", self._on_findEntry_changed)
 227                 self._closeSearchButton.connect("clicked", self._on_toggle_search)
 228                 self._previousUnitValue.connect("changed", self._on_previous_unit_value_changed)
 229                 self._unitValue.connect("changed", self._on_unit_value_changed)
 230                 self._unitValue.connect("key-press-event", self._on_browse_key_press)
 231                 self._unitsView.connect("cursor-changed", self._on_click_unit)
 232                 self._unitsView.connect("key-press-event", self._on_browse_key_press)
 233                 if hildonize.GTK_MENU_USED:
 234                         widgets.get_widget("aboutMenuItem").connect("activate", self._on_about_clicked)
 235                         widgets.get_widget("searchMenuItem").connect("activate", self._on_toggle_search)
 236                         widgets.get_widget("exitMenuItem").connect("activate", self._on_user_exit)
 237
 238                 for scrollingWidgetName in (
 239                         "unitsViewScrolledWindow",
 240                 ):
 241                         scrollingWidget = widgets.get_widget(scrollingWidgetName)
 242                         assert scrollingWidget is not None, scrollingWidgetName
 243                         hildonize.hildonize_scrollwindow_with_viewport(scrollingWidget)
 244
 245                 # Simplify the UI
 246                 if hildonize.IS_HILDON_SUPPORTED or constants.FORCE_HILDON_LIKE:
 247                         self._categoryView.get_parent().hide()
 248                         self._unitsView.set_headers_visible(False)
 249                         self._previousUnitName.get_parent().hide()
 250                         self._unitDescription.get_parent().get_parent().hide()
 251                 else:
 252                         self._categorySelectionButton.hide()
 253
 254                 menu = hildonize.hildonize_menu(
 255                         self._mainWindow,
 256                         widgets.get_widget("mainMenuBar"),
 257                 )
 258                 if not hildonize.GTK_MENU_USED:
 259                         button = gtk.Button("Search")
 260                         button.connect("clicked", self._on_toggle_search)
 261                         menu.append(button)
 262
 263                         button = hildonize.hildon.GtkRadioButton(gtk.HILDON_SIZE_AUTO, None)
 264                         button.set_label("Name")
 265                         menu.add_filter(button)
 266                         button.connect("clicked", self._on_click_menu_filter, self._unitNameColumn)
 267                         button.set_mode(False)
 268                         filterGroup = button
 269
 270                         button = hildonize.hildon.GtkRadioButton(gtk.HILDON_SIZE_AUTO, filterGroup)
 271                         button.set_label("Value")
 272                         menu.add_filter(button)
 273                         button.connect("clicked", self._on_click_menu_filter, self._unitIntegerColumn)
 274                         button.set_mode(False)
 275
 276                         button = hildonize.hildon.GtkRadioButton(gtk.HILDON_SIZE_AUTO, filterGroup)
 277                         button.set_label("Unit")
 278                         menu.add_filter(button)
 279                         button.connect("clicked", self._on_click_menu_filter, self._unitSymbolColumn)
 280                         button.set_mode(False)
 281
 282                         menu.show_all()
 283
 284                 if not hildonize.IS_HILDON_SUPPORTED:
 285                         _moduleLogger.info("No hildonization support")
 286
 287                 hildonize.set_application_title(
 288                         self._mainWindow, "%s - Unit Conversion Utility" % constants.__pretty_app_name__
 289                 )
 290                 iconPath = pixmapspath + '/gonvert.png'
 291                 if os.path.exists(iconPath):
 292                         self._mainWindow.set_icon(gtk.gdk.pixbuf_new_from_file(iconPath))
 293                 else:
 294                         _moduleLogger.warn("Error: Could not find gonvert icon: %s" % iconPath)
 295
 296                 self._load_settings()
 297                 self._mainWindow.show()
 298
 299         def _load_settings(self):
 300                 #Restore window size from previously saved settings if it exists and is valid.
 301                 windowDatPath = "/".join((constants._data_path_, "window.dat"))
 302                 if os.path.exists(windowDatPath):
 303                         saved_window = pickle.load(open(windowDatPath, "r"))
 304                         try:
 305                                 a, b = saved_window['size']
 306                         except KeyError:
 307                                 pass
 308                         else:
 309                                 self._mainWindow.resize(a, b)
 310
 311                 #Restore selections from previously saved settings if it exists and is valid.
 312                 categoryIndex = 0
 313                 selectedCategoryName = unit_data.UNIT_CATEGORIES[0]
 314                 selectionsDatPath = "/".join((constants._data_path_, "selections.dat"))
 315                 if os.path.exists(selectionsDatPath):
 316                         selections = pickle.load(open(selectionsDatPath, 'r'))
 317                         try:
 318                                 self._defaultUnitForCategory = selections['selected_units']
 319                         except KeyError:
 320                                 pass
 321
 322                         try:
 323                                 selectedCategoryName = selections['selected_category']
 324                         except KeyError:
 325                                 pass
 326                         else:
 327                                 try:
 328                                         categoryIndex = unit_data.UNIT_CATEGORIES.index(selectedCategoryName)
 329                                 except ValueError:
 330                                         _moduleLogger.warn("Unknown category: %s" % selectedCategoryName)
 331
 332                 self._categorySelectionButton.get_child().set_markup("<big>%s</big>" % selectedCategoryName)
 333                 self._categoryView.set_cursor(categoryIndex, self._categoryColumn, False)
 334                 self._categoryView.grab_focus()
 335
 336                 self._select_default_unit()
 337
 338         def _save_settings(self):
 339                 """
 340                 This routine saves the selections to a file, and
 341                 should therefore only be called when exiting the program.
 342
 343                 Update selections dictionary which consists of the following keys:
 344                 'self._selectedCategoryName': full name of selected category
 345                 'self._defaultUnitForCategory': self._defaultUnitForCategory dictionary which contains:
 346                 [categoryname: #1 displayed unit, #2 displayed unit]
 347                 """
 348                 #Determine the contents of the selected category row
 349                 selected, iter = self._categoryView.get_selection().get_selected()
 350                 self._selectedCategoryName = self._categoryModel.get_value(iter, 0)
 351
 352                 selections = {
 353                         'selected_category': self._selectedCategoryName,
 354                         'selected_units': self._defaultUnitForCategory
 355                 }
 356                 selectionsDatPath = "/".join((constants._data_path_, "selections.dat"))
 357                 pickle.dump(selections, open(selectionsDatPath, 'w'))
 358
 359                 #Get last size of app and save it
 360                 window_settings = {
 361                         'size': self._mainWindow.get_size()
 362                 }
 363                 windowDatPath = "/".join((constants._data_path_, "window.dat"))
 364                 pickle.dump(window_settings, open(windowDatPath, 'w'))
 365
 366         def _refresh_columns(self):
 367                 self._unitsView.remove_column(self._unitNameColumn)
 368                 self._unitsView.remove_column(self._unitIntegerColumn)
 369                 self._unitsView.remove_column(self._unitFractionalColumn)
 370                 self._unitsView.remove_column(self._unitSymbolColumn)
 371
 372                 self._unitsView.append_column(self._unitNameColumn)
 373                 self._unitsView.append_column(self._unitIntegerColumn)
 374                 self._unitsView.append_column(self._unitFractionalColumn)
 375                 self._unitsView.append_column(self._unitSymbolColumn)
 376
 377         def _clear_find(self):
 378                 # switch to "new find" state
 379                 self._find_result = []
 380                 self._findIndex = 0
 381
 382                 # Clear our user message
 383                 self._findLabel.set_text('')
 384
 385         def _find_first(self):
 386                 assert len(self._find_result) == 0
 387                 assert self._findIndex == 0
 388                 findString = self._findEntry.get_text().strip().lower()
 389                 if not findString:
 390                         return
 391
 392                 # Gather info on all the matching units from all categories
 393                 for catIndex, category in enumerate(unit_data.UNIT_CATEGORIES):
 394                         units = unit_data.get_units(category)
 395                         for unitIndex, unit in enumerate(units):
 396                                 loweredUnit = unit.lower()
 397                                 if loweredUnit in findString or findString in loweredUnit:
 398                                         self._find_result.append((category, unit, catIndex, unitIndex))
 399
 400         def _update_find_selection(self):
 401                 assert 0 < len(self._find_result)
 402
 403                 #check if next find is in a new category (prevent category changes when unnecessary
 404                 searchCategoryName = self._find_result[self._findIndex][0]
 405                 if self._selectedCategoryName != searchCategoryName:
 406                         self._categorySelectionButton.get_child().set_markup("<big>%s</big>" % searchCategoryName)
 407                         self._categoryView.set_cursor(
 408                                 self._find_result[self._findIndex][2], self._categoryColumn, False
 409                         )
 410
 411                 self._unitsView.set_cursor(
 412                         self._find_result[self._findIndex][3], self._unitNameColumn, True
 413                 )
 414
 415         def _find_next(self):
 416                 if len(self._find_result) == 0:
 417                         self._find_first()
 418                 else:
 419                         if self._findIndex == len(self._find_result)-1:
 420                                 self._findIndex = 0
 421                         else:
 422                                 self._findIndex += 1
 423
 424                 if not self._find_result:
 425                         self._findLabel.set_text('Text not found')
 426                 else:
 427                         self._update_find_selection()
 428                         resultsLeft = len(self._find_result) - self._findIndex - 1
 429                         self._findLabel.set_text(
 430                                 '%s result(s) left' % (resultsLeft, )
 431                         )
 432
 433         def _find_previous(self):
 434                 if len(self._find_result) == 0:
 435                         self._find_first()
 436                 else:
 437                         if self._findIndex == 0:
 438                                 self._findIndex = len(self._find_result)-1
 439                         else:
 440                                 self._findIndex -= 1
 441
 442                 if not self._find_result:
 443                         self._findLabel.set_text('Text not found')
 444                 else:
 445                         self._update_find_selection()
 446                         resultsLeft = len(self._find_result) - self._findIndex - 1
 447                         self._findLabel.set_text(
 448                                 '%s result(s) left' % (resultsLeft, )
 449                         )
 450
 451         def _toggle_find(self):
 452                 if self._searchLayout.get_property("visible"):
 453                         self._searchLayout.hide()
 454                         self._unitsView.grab_focus()
 455                 else:
 456                         self._searchLayout.show()
 457                         self._findEntry.grab_focus()
 458
 459         def _unit_model_cmp(self, sortedModel, leftItr, rightItr):
 460                 leftUnitText = self._unitModel.get_value(leftItr, self.UNITS_NAME_IDX)
 461                 rightUnitText = self._unitModel.get_value(rightItr, self.UNITS_NAME_IDX)
 462                 return cmp(leftUnitText, rightUnitText)
 463
 464         def _symbol_model_cmp(self, sortedModel, leftItr, rightItr):
 465                 leftSymbolText = self._unitModel.get_value(leftItr, self.UNITS_SYMBOL_IDX)
 466                 rightSymbolText = self._unitModel.get_value(rightItr, self.UNITS_SYMBOL_IDX)
 467                 return cmp(leftSymbolText, rightSymbolText)
 468
 469         def _value_model_cmp(self, sortedModel, leftItr, rightItr):
 470                 #special sorting exceptions for ascii values (instead of float values)
 471                 if self._selectedCategoryName == "Computer Numbers":
 472                         leftValue = self._unitModel.get_value(leftItr, self.UNITS_VALUE_IDX)
 473                         rightValue = self._unitModel.get_value(rightItr, self.UNITS_VALUE_IDX)
 474                 else:
 475                         leftValueText = self._unitModel.get_value(leftItr, self.UNITS_VALUE_IDX)
 476                         leftValue = float(leftValueText) if leftValueText else 0.0
 477
 478                         rightValueText = self._unitModel.get_value(rightItr, self.UNITS_VALUE_IDX)
 479                         rightValue = float(rightValueText) if rightValueText else 0.0
 480                 return cmp(leftValue, rightValue)
 481
 482         def _get_column_sort_stuff(self):
 483                 columns = (
 484                         (self._unitNameColumn, "_unit_sort_direction", self._unit_model_cmp),
 485                         (self._unitIntegerColumn, "_value_sort_direction", self._value_model_cmp),
 486                         (self._unitFractionalColumn, "_value_sort_direction", self._value_model_cmp),
 487                         (self._unitSymbolColumn, "_units_sort_direction", self._symbol_model_cmp),
 488                 )
 489                 return columns
 490
 491         def _switch_category(self, category):
 492                 self._selectedCategoryName = category
 493                 self._unitDataInCategory = unit_data.UNIT_DESCRIPTIONS[self._selectedCategoryName]
 494
 495                 #Fill up the units descriptions and clear the value cells
 496                 self._clear_visible_unit_data()
 497                 nameLength = 0
 498                 for key in unit_data.get_units(self._selectedCategoryName):
 499                         row = key, '0.0', self._unitDataInCategory[key][1], '0.', '0'
 500                         self._unitModel.append(row)
 501                         nameLength = max(nameLength, len(key))
 502                 self._sortedUnitModel.sort_column_changed()
 503
 504                 if constants.FORCE_HILDON_LIKE:
 505                         maxCatCharWidth = int(nameLength * 0.75)
 506                         maxCharWidth = int(len("nibble | hexit | quadbit") * 0.75)
 507                         charWidth = min(maxCatCharWidth, maxCharWidth)
 508                         self._unitsNameRenderer.set_property("width-chars", charWidth)
 509
 510                 self._select_default_unit()
 511
 512         def _clear_visible_unit_data(self):
 513                 self._unitDescription.get_buffer().set_text("")
 514                 self._unitName.set_text('')
 515                 self._unitValue.set_text('')
 516                 self._unitSymbol.set_text('')
 517
 518                 self._previousUnitName.set_text('')
 519                 self._previousUnitValue.set_text('')
 520                 self._previousUnitSymbol.set_text('')
 521
 522                 self._unitModel.clear()
 523
 524         def _select_default_unit(self):
 525                 # Restore the previous historical settings of previously selected units
 526                 # in this newly selected category
 527                 defaultPrimary = unit_data.get_base_unit(self._selectedCategoryName)
 528                 defaultSecondary = ""
 529                 if self._selectedCategoryName in self._defaultUnitForCategory:
 530                         if self._defaultUnitForCategory[self._selectedCategoryName][0]:
 531                                 defaultPrimary = self._defaultUnitForCategory[self._selectedCategoryName][0]
 532                         if self._defaultUnitForCategory[self._selectedCategoryName][1]:
 533                                 defaultSecondary = self._defaultUnitForCategory[self._selectedCategoryName][1]
 534
 535                 units = unit_data.get_units(self._selectedCategoryName)
 536
 537                 #Restore oldest selection first.
 538                 if defaultPrimary:
 539                         try:
 540                                 unitIndex = units.index(defaultPrimary)
 541                         except ValueError:
 542                                 unitIndex = 0
 543                         self._unitsView.set_cursor(unitIndex, self._unitNameColumn, True)
 544
 545                 #Restore newest selection second.
 546                 if defaultSecondary:
 547                         try:
 548                                 unitIndex = units.index(defaultSecondary)
 549                         except ValueError:
 550                                 unitIndex = 0
 551                         self._unitsView.set_cursor(unitIndex, self._unitNameColumn, True)
 552
 553                 # select the text so user can start typing right away
 554                 self._unitValue.grab_focus()
 555                 self._unitValue.select_region(0, -1)
 556
 557         def _sanitize_value(self, userEntry):
 558                 if self._selectedCategoryName == "Computer Numbers":
 559                         if userEntry == '':
 560                                 value = '0'
 561                         else:
 562                                 value = userEntry
 563                 else:
 564                         if userEntry == '':
 565                                 value = 0.0
 566                         else:
 567                                 value = float(userEntry)
 568                 return value
 569
 570         def _select_sort_column(self, col):
 571                 #Determine which column requires sorting
 572                 columns = self._get_column_sort_stuff()
 573                 for columnIndex, (maybeCol, directionName, col_cmp) in enumerate(columns):
 574                         if col is maybeCol:
 575                                 direction = getattr(self, directionName)
 576                                 gtkDirection = gtk.SORT_ASCENDING if direction else gtk.SORT_DESCENDING
 577
 578                                 # cause a sort
 579                                 self._sortedUnitModel.set_sort_column_id(columnIndex, gtkDirection)
 580
 581                                 # set the visual for sorting
 582                                 col.set_sort_indicator(True)
 583                                 col.set_sort_order(not direction)
 584
 585                                 setattr(self, directionName, not direction)
 586                                 break
 587                         else:
 588                                 maybeCol.set_sort_indicator(False)
 589                 else:
 590                         assert False, "Unknown column: %s" % (col.get_title(), )
 591
 592         @gtk_toolbox.log_exception(_moduleLogger)
 593         def _on_key_press(self, widget, event, *args):
 594                 """
 595                 @note Hildon specific
 596                 """
 597                 RETURN_TYPES = (gtk.keysyms.Return, gtk.keysyms.ISO_Enter, gtk.keysyms.KP_Enter)
 598                 if (
 599                         event.keyval == gtk.keysyms.F6 or
 600                         event.keyval in RETURN_TYPES and event.get_state() & gtk.gdk.CONTROL_MASK
 601                 ):
 602                         if self._isFullScreen:
 603                                 self._mainWindow.unfullscreen()
 604                         else:
 605                                 self._mainWindow.fullscreen()
 606                 elif event.keyval == gtk.keysyms.f and event.get_state() & gtk.gdk.CONTROL_MASK:
 607                         if not hildonize.GTK_MENU_USED:
 608                                 self._toggle_find()
 609                 elif event.keyval == gtk.keysyms.p and event.get_state() & gtk.gdk.CONTROL_MASK:
 610                         self._find_previous()
 611                 elif event.keyval == gtk.keysyms.n and event.get_state() & gtk.gdk.CONTROL_MASK:
 612                         self._find_next()
 613                 elif (
 614                         event.keyval in (gtk.keysyms.w, gtk.keysyms.q) and
 615                         event.get_state() & gtk.gdk.CONTROL_MASK
 616                 ):
 617                         self._mainWindow.destroy()
 618                 elif event.keyval == gtk.keysyms.l and event.get_state() & gtk.gdk.CONTROL_MASK:
 619                         with open(constants._user_logpath_, "r") as f:
 620                                 logLines = f.xreadlines()
 621                                 log = "".join(logLines)
 622                                 self._clipboard.set_text(str(log))
 623
 624         @gtk_toolbox.log_exception(_moduleLogger)
 625         def _on_toggle_search(self, *args):
 626                 self._toggle_find()
 627
 628         @gtk_toolbox.log_exception(_moduleLogger)
 629         def _on_browse_key_press(self, widget, event, *args):
 630                 if event.keyval == gtk.keysyms.uparrow or event.keyval == gtk.keysyms.Up:
 631                         index, column = self._unitsView.get_cursor()
 632                         newIndex = max(index[0]-1, 0)
 633                         self._unitsView.set_cursor((newIndex, ), column, True)
 634                         return True # override default behavior
 635                 elif event.keyval == gtk.keysyms.downarrow or event.keyval == gtk.keysyms.Down:
 636                         index, column = self._unitsView.get_cursor()
 637                         newIndex = min(index[0]+1, len(self._unitModel)-1)
 638                         self._unitsView.set_cursor((newIndex, ), column, True)
 639                         return True # override default behavior
 640
 641         @gtk_toolbox.log_exception(_moduleLogger)
 642         def _on_window_state_change(self, widget, event, *args):
 643                 """
 644                 @note Hildon specific
 645                 """
 646                 if event.new_window_state & gtk.gdk.WINDOW_STATE_FULLSCREEN:
 647                         self._isFullScreen = True
 648                 else:
 649                         self._isFullScreen = False
 650
 651         @gtk_toolbox.log_exception(_moduleLogger)
 652         def _on_findEntry_changed(self, *args):
 653                 """
 654                 Clear out find results since the user wants to look for something new
 655                 """
 656                 self._clear_find()
 657
 658         @gtk_toolbox.log_exception(_moduleLogger)
 659         def _on_find_activate(self, *args):
 660                 self._find_next()
 661                 self._findButton.grab_focus()
 662
 663         @gtk_toolbox.log_exception(_moduleLogger)
 664         def _on_click_menu_filter(self, button, col):
 665                 self._select_sort_column(col)
 666
 667         @gtk_toolbox.log_exception(_moduleLogger)
 668         def _on_click_unit_column(self, col):
 669                 """
 670                 Sort the contents of the col when the user clicks on the title.
 671                 """
 672                 self._select_sort_column(col)
 673
 674         @gtk_toolbox.log_exception(_moduleLogger)
 675         def _on_category_selector_clicked(self, *args):
 676                 currenntIndex = unit_data.UNIT_CATEGORIES.index(self._selectedCategoryName)
 677                 newIndex = hildonize.touch_selector(
 678                         self._mainWindow,
 679                         "Categories",
 680                         unit_data.UNIT_CATEGORIES,
 681                         currenntIndex,
 682                 )
 683
 684                 selectedCategoryName = unit_data.UNIT_CATEGORIES[newIndex]
 685                 self._categorySelectionButton.get_child().set_markup("<big>%s</big>" % selectedCategoryName)
 686                 self._switch_category(selectedCategoryName)
 687
 688         @gtk_toolbox.log_exception(_moduleLogger)
 689         def _on_click_category(self, *args):
 690                 selected, iter = self._categoryView.get_selection().get_selected()
 691                 if iter is None:
 692                         # User is typing in an invalid string, not selecting any category
 693                         return
 694                 selectedCategory = self._categoryModel.get_value(iter, 0)
 695                 self._switch_category(selectedCategory)
 696
 697         @gtk_toolbox.log_exception(_moduleLogger)
 698         def _on_click_unit(self, *args):
 699                 selected, iter = self._unitsView.get_selection().get_selected()
 700                 selected_unit = selected.get_value(iter, self.UNITS_NAME_IDX)
 701                 unit_spec = self._unitDataInCategory[selected_unit]
 702
 703                 showSymbol = False
 704
 705                 if self._unitName.get_text() != selected_unit:
 706                         self._previousUnitName.set_text(self._unitName.get_text())
 707                         self._previousUnitValue.set_text(self._unitValue.get_text())
 708                         self._previousUnitSymbol.set_text(self._unitSymbol.get_text())
 709                         if self._unitSymbol.get_text():
 710                                 showSymbol = True
 711
 712                 self._unitName.set_text(selected_unit)
 713                 self._unitValue.set_text(selected.get_value(iter, self.UNITS_VALUE_IDX))
 714                 buffer = self._unitDescription.get_buffer()
 715                 buffer.set_text(unit_spec[2])
 716                 self._unitSymbol.set_text(unit_spec[1]) # put units into label text
 717                 if unit_spec[1]:
 718                         showSymbol = True
 719                 else:
 720                         showSymbol = False
 721
 722                 if showSymbol:
 723                         self._unitSymbol.show()
 724                         self._previousUnitSymbol.show()
 725                 else:
 726                         self._unitSymbol.hide()
 727                         self._previousUnitSymbol.hide()
 728
 729                 if self._unitValue.get_text() == '':
 730                         if self._selectedCategoryName == "Computer Numbers":
 731                                 self._unitValue.set_text("0")
 732                         else:
 733                                 self._unitValue.set_text("0.0")
 734
 735                 self._defaultUnitForCategory[self._selectedCategoryName] = [
 736                         self._unitName.get_text(), self._previousUnitName.get_text()
 737                 ]
 738
 739                 # select the text so user can start typing right away
 740                 self._unitValue.grab_focus()
 741                 self._unitValue.select_region(0, -1)
 742
 743         @gtk_toolbox.log_exception(_moduleLogger)
 744         def _on_unit_value_changed(self, *args):
 745                 if self._unitName.get_text() == '':
 746                         return
 747                 if not self._unitValue.is_focus():
 748                         return
 749
 750                 #retrieve the conversion function and value from the selected unit
 751                 value = self._sanitize_value(self._unitValue.get_text())
 752                 func, arg = self._unitDataInCategory[self._unitName.get_text()][0]
 753                 base = func.to_base(value, arg)
 754
 755                 #point to the first row
 756                 for row in self._unitModel:
 757                         func, arg = self._unitDataInCategory[row[self.UNITS_NAME_IDX]][0]
 758                         newValue = func.from_base(base, arg)
 759
 760                         newValueDisplay = str(newValue)
 761                         integerDisplay, fractionalDisplay = split_number(newValue)
 762
 763                         row[self.UNITS_VALUE_IDX] = newValueDisplay
 764                         row[self.UNITS_INTEGER_IDX] = integerDisplay
 765                         row[self.UNITS_FRACTION_IDX] = fractionalDisplay
 766
 767                 # Update the secondary unit entry
 768                 if self._previousUnitName.get_text() != '':
 769                         func, arg = self._unitDataInCategory[self._previousUnitName.get_text()][0]
 770                         self._previousUnitValue.set_text(str(func.from_base(base, arg, )))
 771
 772                 self._sortedUnitModel.sort_column_changed()
 773                 self._refresh_columns()
 774
 775         @gtk_toolbox.log_exception(_moduleLogger)
 776         def _on_previous_unit_value_changed(self, *args):
 777                 if self._previousUnitName.get_text() == '':
 778                         return
 779                 if not self._previousUnitValue.is_focus():
 780                         return
 781
 782                 #retrieve the conversion function and value from the selected unit
 783                 value = self._sanitize_value(self._previousUnitValue.get_text())
 784                 func, arg = self._unitDataInCategory[self._previousUnitName.get_text()][0]
 785                 base = func.to_base(value, arg)
 786
 787                 #point to the first row
 788                 for row in self._unitModel:
 789                         func, arg = self._unitDataInCategory[row[self.UNITS_NAME_IDX]][0]
 790                         newValue = func.from_base(base, arg)
 791
 792                         newValueDisplay = str(newValue)
 793                         integerDisplay, fractionalDisplay = split_number(newValue)
 794
 795                         row[self.UNITS_VALUE_IDX] = newValueDisplay
 796                         row[self.UNITS_INTEGER_IDX] = integerDisplay
 797                         row[self.UNITS_FRACTION_IDX] = fractionalDisplay
 798
 799                 # Update the primary unit entry
 800                 func, arg = self._unitDataInCategory[self._unitName.get_text()][0]
 801                 self._unitValue.set_text(str(func.from_base(base, arg, )))
 802
 803                 self._sortedUnitModel.sort_column_changed()
 804                 self._refresh_columns()
 805
 806         @gtk_toolbox.log_exception(_moduleLogger)
 807         def _on_about_clicked(self, a):
 808                 dlg = gtk.AboutDialog()
 809                 dlg.set_name(constants.__pretty_app_name__)
 810                 dlg.set_version("%s-%d" % (constants.__version__, constants.__build__))
 811                 dlg.set_copyright("Copyright 2009 - GPL")
 812                 dlg.set_comments("")
 813                 dlg.set_website("http://unihedron.com/projects/gonvert/gonvert.php")
 814                 dlg.set_authors(["Anthony Tekatch <anthony@unihedron.com>", "Ed Page <eopage@byu.net> (Blame him for the most recent bugs)"])
 815                 dlg.run()
 816                 dlg.destroy()
 817
 818         @gtk_toolbox.log_exception(_moduleLogger)
 819         def _on_user_exit(self, *args):
 820                 try:
 821                         self._save_settings()
 822                 except Exception:
 823                         pass
 824                 finally:
 825                         gtk.main_quit()
 826
 827
 828 def run_gonvert():
 829         gtk.gdk.threads_init()
 830         if hildonize.IS_HILDON_SUPPORTED:
 831                 gtk.set_application_name(constants.__pretty_app_name__)
 832         handle = Gonvert()
 833         if not constants.PROFILE_STARTUP:
 834                 gtk.main()
 835
 836
 837 if __name__ == "__main__":
 838         logging.basicConfig(level = logging.DEBUG)
 839         try:
 840                 os.makedirs(constants._data_path_)
 841         except OSError, e:
 842                 if e.errno != 17:
 843                         raise
 844
 845         run_gonvert()