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

   1 #!/usr/bin/env python
   2 # -*- coding: UTF8 -*-
   3
   4 from __future__ import with_statement
   5
   6 import sys
   7 import os
   8 import math
   9 import simplejson
  10 import logging
  11
  12 from PyQt4 import QtGui
  13 from PyQt4 import QtCore
  14
  15 import constants
  16 from util import misc as misc_utils
  17 import unit_data
  18
  19
  20 _moduleLogger = logging.getLogger("gonvert_glade")
  21
  22
  23 IS_MAEMO = True
  24
  25
  26 def change_menu_label(widgets, labelname, newtext):
  27         item_label = widgets.get_widget(labelname).get_children()[0]
  28         item_label.set_text(newtext)
  29
  30
  31 def split_number(number):
  32         try:
  33                 fractional, integer = math.modf(number)
  34         except TypeError:
  35                 integerDisplay = number
  36                 fractionalDisplay = ""
  37         else:
  38                 integerDisplay = str(integer)
  39                 fractionalDisplay = str(fractional)
  40                 if "e+" in integerDisplay:
  41                         integerDisplay = number
  42                         fractionalDisplay = ""
  43                 elif "e-" in fractionalDisplay and 0.0 < integer:
  44                         integerDisplay = number
  45                         fractionalDisplay = ""
  46                 elif "e-" in fractionalDisplay:
  47                         integerDisplay = ""
  48                         fractionalDisplay = number
  49                 else:
  50                         integerDisplay = integerDisplay.split(".", 1)[0] + "."
  51                         fractionalDisplay = fractionalDisplay.rsplit(".", 1)[-1]
  52
  53         return integerDisplay, fractionalDisplay
  54
  55
  56 class Gonvert(object):
  57
  58         _DATA_PATHS = [
  59                 os.path.dirname(__file__),
  60                 os.path.join(os.path.dirname(__file__), "../data"),
  61                 os.path.join(os.path.dirname(__file__), "../lib"),
  62                 '/usr/share/gonvert',
  63                 '/usr/lib/gonvert',
  64         ]
  65
  66         def __init__(self, app):
  67                 self._dataPath = ""
  68                 for dataPath in self._DATA_PATHS:
  69                         appIconPath = os.path.join(dataPath, "pixmaps", "gonvert.png")
  70                         if os.path.isfile(appIconPath):
  71                                 self._dataPath = dataPath
  72                                 break
  73                 else:
  74                         raise RuntimeError("UI Descriptor not found!")
  75                 self._app = app
  76                 self._appIconPath = appIconPath
  77                 self._recent = []
  78                 self._hiddenCategories = set()
  79                 self._hiddenUnits = {}
  80                 self._clipboard = QtGui.QApplication.clipboard()
  81
  82                 self._jumpWindow = None
  83                 self._recentWindow = None
  84                 self._catWindow = None
  85
  86                 self._jumpAction = QtGui.QAction(None)
  87                 self._jumpAction.setText("Quick Jump")
  88                 self._jumpAction.setStatusTip("Search for a unit and jump straight to it")
  89                 self._jumpAction.setToolTip("Search for a unit and jump straight to it")
  90                 self._jumpAction.setShortcut(QtGui.QKeySequence("CTRL+j"))
  91                 self._jumpAction.triggered.connect(self._on_jump_start)
  92
  93                 self._recentAction = QtGui.QAction(None)
  94                 self._recentAction.setText("Recent Units")
  95                 self._recentAction.setStatusTip("View the recent units")
  96                 self._recentAction.setToolTip("View the recent units")
  97                 self._recentAction.setShortcut(QtGui.QKeySequence("CTRL+r"))
  98                 self._recentAction.triggered.connect(self._on_recent_start)
  99
 100                 self._fullscreenAction = QtGui.QAction(None)
 101                 self._fullscreenAction.setText("Fullscreen")
 102                 self._fullscreenAction.setCheckable(True)
 103                 self._fullscreenAction.setShortcut(QtGui.QKeySequence("CTRL+Enter"))
 104                 self._fullscreenAction.toggled.connect(self._on_toggle_fullscreen)
 105
 106                 self._showFavoritesAction = QtGui.QAction(None)
 107                 self._showFavoritesAction.setCheckable(True)
 108                 self._showFavoritesAction.setText("Favorites Only")
 109
 110                 self._logAction = QtGui.QAction(None)
 111                 self._logAction.setText("Log")
 112                 self._logAction.setShortcut(QtGui.QKeySequence("CTRL+l"))
 113                 self._logAction.triggered.connect(self._on_log)
 114
 115                 self._quitAction = QtGui.QAction(None)
 116                 self._quitAction.setText("Quit")
 117                 self._quitAction.setShortcut(QtGui.QKeySequence("CTRL+q"))
 118                 self._quitAction.triggered.connect(self._on_quit)
 119
 120                 self._app.lastWindowClosed.connect(self._on_app_quit)
 121                 self.request_category()
 122                 self.load_settings()
 123
 124         def request_category(self):
 125                 if self._catWindow is not None:
 126                         self._catWindow.close()
 127                         self._catWindow = None
 128                 self._catWindow = CategoryWindow(None, self)
 129                 self._catWindow.window.destroyed.connect(lambda obj = None: self._on_child_close("_catWindow", obj))
 130                 return self._catWindow
 131
 132         def search_units(self):
 133                 if self._jumpWindow is not None:
 134                         self._jumpWindow.close()
 135                         self._jumpWindow = None
 136                 self._jumpWindow = QuickJump(None, self)
 137                 self._jumpWindow.window.destroyed.connect(lambda obj = None: self._on_child_close("_jumpWindow", obj))
 138                 return self._jumpWindow
 139
 140         def show_recent(self):
 141                 if self._recentWindow is not None:
 142                         self._recentWindow.close()
 143                         self._recentWindow = None
 144                 self._recentWindow = Recent(None, self)
 145                 self._recentWindow.window.destroyed.connect(lambda obj = None: self._on_child_close("_recentWindow", obj))
 146                 return self._recentWindow
 147
 148         def add_recent(self, categoryName, unitName):
 149                 catUnit = categoryName, unitName
 150                 try:
 151                         self._recent.remove(catUnit)
 152                 except ValueError:
 153                         pass # ignore if its not already in the recent history
 154                 assert catUnit not in self._recent
 155                 self._recent.append(catUnit)
 156
 157         def get_recent_unit(self, categoryName):
 158                 for catName, unitName in reversed(self._recent):
 159                         if catName == categoryName:
 160                                 return unitName
 161                 else:
 162                         return ""
 163
 164         def get_recent(self):
 165                 return reversed(self._recent)
 166
 167         @property
 168         def hiddenCategories(self):
 169                 return self._hiddenCategories
 170
 171         def get_hidden_units(self, categoryName):
 172                 try:
 173                         return self._hiddenUnits[categoryName]
 174                 except KeyError:
 175                         self._hiddenUnits[categoryName] = set()
 176                         return self._hiddenUnits[categoryName]
 177
 178         def load_settings(self):
 179                 try:
 180                         with open(constants._user_settings_, "r") as settingsFile:
 181                                 settings = simplejson.load(settingsFile)
 182                 except IOError, e:
 183                         _moduleLogger.info("No settings")
 184                         settings = {}
 185                 except ValueError:
 186                         _moduleLogger.info("Settings were corrupt")
 187                         settings = {}
 188
 189                 self._fullscreenAction.setChecked(settings.get("isFullScreen", False))
 190
 191                 recent = settings.get("recent", self._recent)
 192                 for category, unit in recent:
 193                         self.add_recent(category, unit)
 194
 195                 self._hiddenCategories = set(settings.get("hiddenCategories", set()))
 196                 self._hiddenUnits = dict(
 197                         (catName, set(units))
 198                         for (catName, units) in settings.get("hiddenUnits", {}).iteritems()
 199                 )
 200
 201                 self._showFavoritesAction.setChecked(settings.get("showFavorites", True))
 202
 203                 if self._recent:
 204                         self._catWindow.select_category(self._recent[-1][0])
 205
 206         def save_settings(self):
 207                 settings = {
 208                         "isFullScreen": self._fullscreenAction.isChecked(),
 209                         "recent": self._recent,
 210                         "hiddenCategories": list(self._hiddenCategories),
 211                         "hiddenUnits": dict(
 212                                 (catName, list(units))
 213                                 for (catName, units) in self._hiddenUnits.iteritems()
 214                         ),
 215                         "showFavorites": self._showFavoritesAction.isChecked(),
 216                 }
 217                 with open(constants._user_settings_, "w") as settingsFile:
 218                         simplejson.dump(settings, settingsFile)
 219
 220         @property
 221         def appIconPath(self):
 222                 return self._appIconPath
 223
 224         @property
 225         def jumpAction(self):
 226                 return self._jumpAction
 227
 228         @property
 229         def recentAction(self):
 230                 return self._recentAction
 231
 232         @property
 233         def fullscreenAction(self):
 234                 return self._fullscreenAction
 235
 236         @property
 237         def logAction(self):
 238                 return self._logAction
 239
 240         @property
 241         def quitAction(self):
 242                 return self._quitAction
 243
 244         @property
 245         def showFavoritesAction(self):
 246                 return self._showFavoritesAction
 247
 248         def _walk_children(self):
 249                 if self._catWindow is not None:
 250                         yield self._catWindow
 251                 if self._jumpWindow is not None:
 252                         yield self._jumpWindow
 253                 if self._recentWindow is not None:
 254                         yield self._recentWindow
 255
 256         @misc_utils.log_exception(_moduleLogger)
 257         def _on_app_quit(self, checked = False):
 258                 self.save_settings()
 259
 260         @misc_utils.log_exception(_moduleLogger)
 261         def _on_child_close(self, name, obj = None):
 262                 if not hasattr(self, name):
 263                         _moduleLogger.info("Something weird going on when we don't have a %s" % name)
 264                         return
 265                 setattr(self, name, None)
 266
 267         @misc_utils.log_exception(_moduleLogger)
 268         def _on_toggle_fullscreen(self, checked = False):
 269                 for window in self._walk_children():
 270                         window.set_fullscreen(checked)
 271
 272         @misc_utils.log_exception(_moduleLogger)
 273         def _on_jump_start(self, checked = False):
 274                 self.search_units()
 275
 276         @misc_utils.log_exception(_moduleLogger)
 277         def _on_recent_start(self, checked = False):
 278                 self.show_recent()
 279
 280         @misc_utils.log_exception(_moduleLogger)
 281         def _on_log(self, checked = False):
 282                 with open(constants._user_logpath_, "r") as f:
 283                         logLines = f.xreadlines()
 284                         log = "".join(logLines)
 285                         self._clipboard.setText(log)
 286
 287         @misc_utils.log_exception(_moduleLogger)
 288         def _on_quit(self, checked = False):
 289                 for window in self._walk_children():
 290                         window.close()
 291
 292
 293 class QuickJump(object):
 294
 295         MINIMAL_ENTRY = 3
 296
 297         def __init__(self, parent, app):
 298                 self._app = app
 299
 300                 self._searchLabel = QtGui.QLabel("Search:")
 301                 self._searchEntry = QtGui.QLineEdit("")
 302                 self._searchEntry.textEdited.connect(self._on_search_edited)
 303
 304                 self._entryLayout = QtGui.QHBoxLayout()
 305                 self._entryLayout.addWidget(self._searchLabel)
 306                 self._entryLayout.addWidget(self._searchEntry)
 307
 308                 self._resultsBox = QtGui.QTreeWidget()
 309                 self._resultsBox.setHeaderLabels(["Categories", "Units"])
 310                 self._resultsBox.setHeaderHidden(True)
 311                 if not IS_MAEMO:
 312                         self._resultsBox.setAlternatingRowColors(True)
 313                 self._resultsBox.itemClicked.connect(self._on_result_clicked)
 314
 315                 self._layout = QtGui.QVBoxLayout()
 316                 self._layout.addLayout(self._entryLayout)
 317                 self._layout.addWidget(self._resultsBox)
 318
 319                 centralWidget = QtGui.QWidget()
 320                 centralWidget.setLayout(self._layout)
 321
 322                 self._window = QtGui.QMainWindow(parent)
 323                 self._window.setAttribute(QtCore.Qt.WA_DeleteOnClose, True)
 324                 if parent is not None:
 325                         self._window.setWindowModality(QtCore.Qt.WindowModal)
 326                 self._window.setWindowTitle("%s - Quick Jump" % constants.__pretty_app_name__)
 327                 self._window.setWindowIcon(QtGui.QIcon(self._app.appIconPath))
 328                 self._window.setCentralWidget(centralWidget)
 329
 330                 self._closeWindowAction = QtGui.QAction(None)
 331                 self._closeWindowAction.setText("Close")
 332                 self._closeWindowAction.setShortcut(QtGui.QKeySequence("CTRL+w"))
 333                 self._closeWindowAction.triggered.connect(self._on_close_window)
 334
 335                 if IS_MAEMO:
 336                         self._window.addAction(self._closeWindowAction)
 337                         self._window.addAction(self._app.quitAction)
 338                         self._window.addAction(self._app.fullscreenAction)
 339                 else:
 340                         fileMenu = self._window.menuBar().addMenu("&Units")
 341                         fileMenu.addAction(self._closeWindowAction)
 342                         fileMenu.addAction(self._app.quitAction)
 343
 344                         viewMenu = self._window.menuBar().addMenu("&View")
 345                         viewMenu.addAction(self._app.fullscreenAction)
 346
 347                 self._window.addAction(self._app.logAction)
 348
 349                 self.set_fullscreen(self._app.fullscreenAction.isChecked())
 350                 self._window.show()
 351
 352         @property
 353         def window(self):
 354                 return self._window
 355
 356         def close(self):
 357                 self._window.close()
 358
 359         def set_fullscreen(self, isFullscreen):
 360                 if isFullscreen:
 361                         self._window.showFullScreen()
 362                 else:
 363                         self._window.showNormal()
 364
 365         @misc_utils.log_exception(_moduleLogger)
 366         def _on_close_window(self, checked = True):
 367                 self.close()
 368
 369         @misc_utils.log_exception(_moduleLogger)
 370         def _on_result_clicked(self, item, columnIndex):
 371                 categoryName = unicode(item.text(0))
 372                 unitName = unicode(item.text(1))
 373                 catWindow = self._app.request_category()
 374                 unitsWindow = catWindow.select_category(categoryName)
 375                 unitsWindow.select_unit(unitName)
 376                 self.close()
 377
 378         @misc_utils.log_exception(_moduleLogger)
 379         def _on_search_edited(self, *args):
 380                 userInput = self._searchEntry.text()
 381                 if len(userInput) <  self.MINIMAL_ENTRY:
 382                         return
 383
 384                 self._resultsBox.clear()
 385                 lowerInput = str(userInput).lower()
 386                 for catIndex, category in enumerate(unit_data.UNIT_CATEGORIES):
 387                         units = unit_data.get_units(category)
 388                         for unitIndex, unit in enumerate(units):
 389                                 loweredUnit = unit.lower()
 390                                 if lowerInput in loweredUnit:
 391                                         twi = QtGui.QTreeWidgetItem(self._resultsBox)
 392                                         twi.setText(0, category)
 393                                         twi.setText(1, unit)
 394
 395
 396 class Recent(object):
 397
 398         def __init__(self, parent, app):
 399                 self._app = app
 400
 401                 self._resultsBox = QtGui.QTreeWidget()
 402                 self._resultsBox.setHeaderLabels(["Categories", "Units"])
 403                 self._resultsBox.setHeaderHidden(True)
 404                 if not IS_MAEMO:
 405                         self._resultsBox.setAlternatingRowColors(True)
 406                 self._resultsBox.itemClicked.connect(self._on_result_clicked)
 407
 408                 self._layout = QtGui.QVBoxLayout()
 409                 self._layout.addWidget(self._resultsBox)
 410
 411                 centralWidget = QtGui.QWidget()
 412                 centralWidget.setLayout(self._layout)
 413
 414                 self._window = QtGui.QMainWindow(parent)
 415                 self._window.setAttribute(QtCore.Qt.WA_DeleteOnClose, True)
 416                 if parent is not None:
 417                         self._window.setWindowModality(QtCore.Qt.WindowModal)
 418                 self._window.setWindowTitle("%s - Recent" % constants.__pretty_app_name__)
 419                 self._window.setWindowIcon(QtGui.QIcon(self._app.appIconPath))
 420                 self._window.setCentralWidget(centralWidget)
 421
 422                 for cat, unit in self._app.get_recent():
 423                         twi = QtGui.QTreeWidgetItem(self._resultsBox)
 424                         twi.setText(0, cat)
 425                         twi.setText(1, unit)
 426
 427                 self._closeWindowAction = QtGui.QAction(None)
 428                 self._closeWindowAction.setText("Close")
 429                 self._closeWindowAction.setShortcut(QtGui.QKeySequence("CTRL+w"))
 430                 self._closeWindowAction.triggered.connect(self._on_close_window)
 431
 432                 if IS_MAEMO:
 433                         self._window.addAction(self._closeWindowAction)
 434                         self._window.addAction(self._app.quitAction)
 435                         self._window.addAction(self._app.fullscreenAction)
 436                 else:
 437                         fileMenu = self._window.menuBar().addMenu("&Units")
 438                         fileMenu.addAction(self._closeWindowAction)
 439                         fileMenu.addAction(self._app.quitAction)
 440
 441                         viewMenu = self._window.menuBar().addMenu("&View")
 442                         viewMenu.addAction(self._app.fullscreenAction)
 443
 444                 self._window.addAction(self._app.logAction)
 445
 446                 self.set_fullscreen(self._app.fullscreenAction.isChecked())
 447                 self._window.show()
 448
 449         @property
 450         def window(self):
 451                 return self._window
 452
 453         def close(self):
 454                 self._window.close()
 455
 456         def set_fullscreen(self, isFullscreen):
 457                 if isFullscreen:
 458                         self._window.showFullScreen()
 459                 else:
 460                         self._window.showNormal()
 461
 462         @misc_utils.log_exception(_moduleLogger)
 463         def _on_close_window(self, checked = True):
 464                 self.close()
 465
 466         @misc_utils.log_exception(_moduleLogger)
 467         def _on_result_clicked(self, item, columnIndex):
 468                 categoryName = unicode(item.text(0))
 469                 unitName = unicode(item.text(1))
 470                 catWindow = self._app.request_category()
 471                 unitsWindow = catWindow.select_category(categoryName)
 472                 unitsWindow.select_unit(unitName)
 473                 self.close()
 474
 475
 476 class FavoriteCategoriesWindow(object):
 477
 478         def __init__(self, parent, app, source, hidden):
 479                 self._app = app
 480                 self._source = list(source)
 481                 self._hidden = hidden
 482
 483                 self._categories = QtGui.QTreeWidget()
 484                 self._categories.setHeaderLabels(["Categories"])
 485                 self._categories.setHeaderHidden(True)
 486                 if not IS_MAEMO:
 487                         self._categories.setAlternatingRowColors(True)
 488                 self._categories.setSelectionBehavior(QtGui.QAbstractItemView.SelectRows)
 489                 self._categories.setSelectionMode(QtGui.QAbstractItemView.MultiSelection)
 490                 self._childWidgets = []
 491                 for catName in self._source:
 492                         twi = QtGui.QTreeWidgetItem(self._categories)
 493                         twi.setText(0, catName)
 494                         self._childWidgets.append(twi)
 495                         if catName not in self._hidden:
 496                                 self._categories.setItemSelected(twi, True)
 497                 self._selection = self._categories.selectionModel()
 498                 self._selection.selectionChanged.connect(self._on_selection_changed)
 499
 500                 self._allButton = QtGui.QPushButton("All")
 501                 self._allButton.clicked.connect(self._on_select_all)
 502                 self._invertButton = QtGui.QPushButton("Invert")
 503                 self._invertButton.clicked.connect(self._on_invert_selection)
 504                 self._noneButton = QtGui.QPushButton("None")
 505                 self._noneButton.clicked.connect(self._on_select_none)
 506
 507                 self._buttonLayout = QtGui.QHBoxLayout()
 508                 self._buttonLayout.addWidget(self._allButton)
 509                 self._buttonLayout.addWidget(self._invertButton)
 510                 self._buttonLayout.addWidget(self._noneButton)
 511
 512                 self._layout = QtGui.QVBoxLayout()
 513                 self._layout.addWidget(self._categories)
 514                 self._layout.addLayout(self._buttonLayout)
 515
 516                 centralWidget = QtGui.QWidget()
 517                 centralWidget.setLayout(self._layout)
 518
 519                 self._window = QtGui.QMainWindow(parent)
 520                 self._window.setAttribute(QtCore.Qt.WA_DeleteOnClose, True)
 521                 if parent is not None:
 522                         self._window.setWindowModality(QtCore.Qt.WindowModal)
 523                 self._window.setWindowTitle("%s - Favorites" % constants.__pretty_app_name__)
 524                 self._window.setWindowIcon(QtGui.QIcon(self._app.appIconPath))
 525                 self._window.setCentralWidget(centralWidget)
 526
 527                 self._closeWindowAction = QtGui.QAction(None)
 528                 self._closeWindowAction.setText("Close")
 529                 self._closeWindowAction.setShortcut(QtGui.QKeySequence("CTRL+w"))
 530                 self._closeWindowAction.triggered.connect(self._on_close_window)
 531
 532                 if IS_MAEMO:
 533                         self._window.addAction(self._closeWindowAction)
 534                         self._window.addAction(self._app.quitAction)
 535                         self._window.addAction(self._app.fullscreenAction)
 536                 else:
 537                         fileMenu = self._window.menuBar().addMenu("&Units")
 538                         fileMenu.addAction(self._closeWindowAction)
 539                         fileMenu.addAction(self._app.quitAction)
 540
 541                         viewMenu = self._window.menuBar().addMenu("&View")
 542                         viewMenu.addAction(self._app.fullscreenAction)
 543
 544                 self._window.addAction(self._app.logAction)
 545
 546                 self.set_fullscreen(self._app.fullscreenAction.isChecked())
 547                 self._window.show()
 548
 549         @property
 550         def window(self):
 551                 return self._window
 552
 553         def close(self):
 554                 self._window.close()
 555
 556         def set_fullscreen(self, isFullscreen):
 557                 if isFullscreen:
 558                         self._window.showFullScreen()
 559                 else:
 560                         self._window.showNormal()
 561
 562         @misc_utils.log_exception(_moduleLogger)
 563         def _on_select_all(self, checked = False):
 564                 for child in self._childWidgets:
 565                         self._categories.setItemSelected(child, True)
 566
 567         @misc_utils.log_exception(_moduleLogger)
 568         def _on_invert_selection(self, checked = False):
 569                 for child in self._childWidgets:
 570                         isSelected = self._categories.isItemSelected(child)
 571                         self._categories.setItemSelected(child, not isSelected)
 572
 573         @misc_utils.log_exception(_moduleLogger)
 574         def _on_select_none(self, checked = False):
 575                 for child in self._childWidgets:
 576                         self._categories.setItemSelected(child, False)
 577
 578         @misc_utils.log_exception(_moduleLogger)
 579         def _on_selection_changed(self, selected, deselected):
 580                 self._hidden.clear()
 581                 selectedNames = set(
 582                         str(item.text(0))
 583                         for item in self._categories.selectedItems()
 584                 )
 585                 for name in self._source:
 586                         if name not in selectedNames:
 587                                 self._hidden.add(name)
 588
 589         @misc_utils.log_exception(_moduleLogger)
 590         def _on_close_window(self, checked = True):
 591                 self.close()
 592
 593
 594 class CategoryWindow(object):
 595
 596         def __init__(self, parent, app):
 597                 self._app = app
 598                 self._unitWindow = None
 599                 self._favoritesWindow = None
 600
 601                 self._categories = QtGui.QTreeWidget()
 602                 self._categories.setHeaderLabels(["Categories"])
 603                 self._categories.itemClicked.connect(self._on_category_clicked)
 604                 self._categories.setHeaderHidden(True)
 605                 if not IS_MAEMO:
 606                         self._categories.setAlternatingRowColors(True)
 607                 for catName in unit_data.UNIT_CATEGORIES:
 608                         twi = QtGui.QTreeWidgetItem(self._categories)
 609                         twi.setText(0, catName)
 610
 611                 self._layout = QtGui.QVBoxLayout()
 612                 self._layout.addWidget(self._categories)
 613
 614                 centralWidget = QtGui.QWidget()
 615                 centralWidget.setLayout(self._layout)
 616
 617                 self._window = QtGui.QMainWindow(parent)
 618                 self._window.setAttribute(QtCore.Qt.WA_DeleteOnClose, True)
 619                 if parent is not None:
 620                         self._window.setWindowModality(QtCore.Qt.WindowModal)
 621                 self._window.setWindowTitle("%s - Categories" % constants.__pretty_app_name__)
 622                 self._window.setWindowIcon(QtGui.QIcon(self._app.appIconPath))
 623                 self._window.setCentralWidget(centralWidget)
 624
 625                 self._chooseFavoritesAction = QtGui.QAction(None)
 626                 self._chooseFavoritesAction.setText("Select Favorites")
 627                 self._chooseFavoritesAction.setShortcut(QtGui.QKeySequence("CTRL+f"))
 628                 self._chooseFavoritesAction.triggered.connect(self._on_choose_favorites)
 629
 630                 self._app.showFavoritesAction.toggled.connect(self._on_show_favorites)
 631
 632                 self._closeWindowAction = QtGui.QAction(None)
 633                 self._closeWindowAction.setText("Close")
 634                 self._closeWindowAction.setShortcut(QtGui.QKeySequence("CTRL+w"))
 635                 self._closeWindowAction.triggered.connect(self._on_close_window)
 636
 637                 if IS_MAEMO:
 638                         fileMenu = self._window.menuBar().addMenu("&Units")
 639                         fileMenu.addAction(self._chooseFavoritesAction)
 640
 641                         viewMenu = self._window.menuBar().addMenu("&View")
 642                         viewMenu.addAction(self._app.showFavoritesAction)
 643                         viewMenu.addSeparator()
 644                         viewMenu.addAction(self._app.jumpAction)
 645                         viewMenu.addAction(self._app.recentAction)
 646
 647                         self._window.addAction(self._closeWindowAction)
 648                         self._window.addAction(self._app.quitAction)
 649                         self._window.addAction(self._app.fullscreenAction)
 650                 else:
 651                         fileMenu = self._window.menuBar().addMenu("&Units")
 652                         fileMenu.addAction(self._chooseFavoritesAction)
 653                         fileMenu.addAction(self._closeWindowAction)
 654                         fileMenu.addAction(self._app.quitAction)
 655
 656                         viewMenu = self._window.menuBar().addMenu("&View")
 657                         viewMenu.addAction(self._app.showFavoritesAction)
 658                         viewMenu.addSeparator()
 659                         viewMenu.addAction(self._app.jumpAction)
 660                         viewMenu.addAction(self._app.recentAction)
 661                         viewMenu.addSeparator()
 662                         viewMenu.addAction(self._app.fullscreenAction)
 663
 664                 self._window.addAction(self._app.logAction)
 665
 666                 self._update_favorites()
 667                 self.set_fullscreen(self._app.fullscreenAction.isChecked())
 668                 self._window.show()
 669
 670         @property
 671         def window(self):
 672                 return self._window
 673
 674         def walk_children(self):
 675                 if self._unitWindow is not None:
 676                         yield self._unitWindow
 677                 if self._favoritesWindow is not None:
 678                         yield self._favoritesWindow
 679
 680         def close(self):
 681                 for child in self.walk_children():
 682                         child.close()
 683                 self._window.close()
 684
 685         def select_category(self, categoryName):
 686                 for child in self.walk_children():
 687                         child.close()
 688                 self._unitWindow = UnitWindow(self._window, categoryName, self._app)
 689                 self._unitWindow.window.destroyed.connect(self._on_child_close)
 690
 691                 i = unit_data.UNIT_CATEGORIES.index(categoryName)
 692                 rootIndex = self._categories.rootIndex()
 693                 currentIndex = self._categories.model().index(i, 0, rootIndex)
 694                 self._categories.scrollTo(currentIndex)
 695                 return self._unitWindow
 696
 697         def set_fullscreen(self, isFullscreen):
 698                 if isFullscreen:
 699                         self._window.showFullScreen()
 700                 else:
 701                         self._window.showNormal()
 702                 for child in self.walk_children():
 703                         child.set_fullscreen(isFullscreen)
 704
 705         def _update_favorites(self):
 706                 if self._app.showFavoritesAction.isChecked():
 707                         assert self._categories.topLevelItemCount() == len(unit_data.UNIT_CATEGORIES)
 708                         for i, catName in enumerate(unit_data.UNIT_CATEGORIES):
 709                                 if catName in self._app.hiddenCategories:
 710                                         self._categories.setRowHidden(i, self._categories.rootIndex(), True)
 711                                 else:
 712                                         self._categories.setRowHidden(i, self._categories.rootIndex(), False)
 713                 else:
 714                         for i in xrange(self._categories.topLevelItemCount()):
 715                                 self._categories.setRowHidden(i, self._categories.rootIndex(), False)
 716
 717         @misc_utils.log_exception(_moduleLogger)
 718         def _on_choose_favorites(self, obj = None):
 719                 assert self._favoritesWindow is None
 720                 self._favoritesWindow = FavoriteCategoriesWindow(
 721                         self._window,
 722                         self._app,
 723                         unit_data.UNIT_CATEGORIES,
 724                         self._app.hiddenCategories
 725                 )
 726                 self._favoritesWindow.window.destroyed.connect(self._on_close_favorites)
 727                 return self._favoritesWindow
 728
 729         @misc_utils.log_exception(_moduleLogger)
 730         def _on_show_favorites(self, checked = True):
 731                 if checked:
 732                         assert self._categories.topLevelItemCount() == len(unit_data.UNIT_CATEGORIES)
 733                         for i, catName in enumerate(unit_data.UNIT_CATEGORIES):
 734                                 if catName in self._app.hiddenCategories:
 735                                         self._categories.setRowHidden(i, self._categories.rootIndex(), True)
 736                 else:
 737                         for i in xrange(self._categories.topLevelItemCount()):
 738                                 self._categories.setRowHidden(i, self._categories.rootIndex(), False)
 739
 740         @misc_utils.log_exception(_moduleLogger)
 741         def _on_close_favorites(self, obj = None):
 742                 self._favoritesWindow = None
 743                 self._update_favorites()
 744
 745         @misc_utils.log_exception(_moduleLogger)
 746         def _on_child_close(self, obj = None):
 747                 self._unitWindow = None
 748
 749         @misc_utils.log_exception(_moduleLogger)
 750         def _on_close_window(self, checked = True):
 751                 self.close()
 752
 753         @misc_utils.log_exception(_moduleLogger)
 754         def _on_category_clicked(self, item, columnIndex):
 755                 categoryName = unicode(item.text(0))
 756                 self.select_category(categoryName)
 757
 758
 759 class UnitData(object):
 760
 761         HEADERS = ["Name", "Value", "", "Unit"]
 762         ALIGNMENT = [QtCore.Qt.AlignLeft, QtCore.Qt.AlignRight, QtCore.Qt.AlignLeft, QtCore.Qt.AlignLeft]
 763         NAME_COLUMN = 0
 764         VALUE_COLUMN_0 = 1
 765         VALUE_COLUMN_1 = 2
 766         UNIT_COLUMN = 3
 767
 768         def __init__(self, name, unit, description, conversion):
 769                 self._name = name
 770                 self._unit = unit
 771                 self._description = description
 772                 self._conversion = conversion
 773
 774                 self._value = 0.0
 775                 self._integerDisplay, self._fractionalDisplay = split_number(self._value)
 776
 777         @property
 778         def name(self):
 779                 return self._name
 780
 781         @property
 782         def value(self):
 783                 return self._value
 784
 785         def update_value(self, newValue):
 786                 self._value = newValue
 787                 self._integerDisplay, self._fractionalDisplay = split_number(newValue)
 788
 789         @property
 790         def unit(self):
 791                 return self._unit
 792
 793         @property
 794         def conversion(self):
 795                 return self._conversion
 796
 797         def data(self, column):
 798                 try:
 799                         return [self._name, self._integerDisplay, self._fractionalDisplay, self._unit][column]
 800                 except IndexError:
 801                         return None
 802
 803
 804 class UnitModel(QtCore.QAbstractItemModel):
 805
 806         def __init__(self, categoryName, parent=None):
 807                 super(UnitModel, self).__init__(parent)
 808                 self._categoryName = categoryName
 809                 self._unitData = unit_data.UNIT_DESCRIPTIONS[self._categoryName]
 810
 811                 self._children = []
 812                 for key in unit_data.get_units(self._categoryName):
 813                         conversion, unit, description = self._unitData[key]
 814                         self._children.append(UnitData(key, unit, description, conversion))
 815                 self._sortSettings = None
 816
 817         @misc_utils.log_exception(_moduleLogger)
 818         def columnCount(self, parent):
 819                 if parent.isValid():
 820                         return 0
 821                 else:
 822                         return len(UnitData.HEADERS)
 823
 824         @misc_utils.log_exception(_moduleLogger)
 825         def data(self, index, role):
 826                 if not index.isValid():
 827                         return None
 828                 elif role == QtCore.Qt.TextAlignmentRole:
 829                         return UnitData.ALIGNMENT[index.column()]
 830                 elif role != QtCore.Qt.DisplayRole:
 831                         return None
 832
 833                 item = index.internalPointer()
 834                 if isinstance(item, UnitData):
 835                         return item.data(index.column())
 836                 elif item is UnitData.HEADERS:
 837                         return item[index.column()]
 838
 839         @misc_utils.log_exception(_moduleLogger)
 840         def sort(self, column, order = QtCore.Qt.AscendingOrder):
 841                 self._sortSettings = column, order
 842                 isReverse = order == QtCore.Qt.AscendingOrder
 843                 if column == UnitData.NAME_COLUMN:
 844                         key_func = lambda item: item.name
 845                 elif column in [UnitData.VALUE_COLUMN_0, UnitData.VALUE_COLUMN_1]:
 846                         key_func = lambda item: item.value
 847                 elif column == UnitData.UNIT_COLUMN:
 848                         key_func = lambda item: item.unit
 849                 self._children.sort(key=key_func, reverse = isReverse)
 850
 851                 self._all_changed()
 852
 853         @misc_utils.log_exception(_moduleLogger)
 854         def flags(self, index):
 855                 if not index.isValid():
 856                         return QtCore.Qt.NoItemFlags
 857
 858                 return QtCore.Qt.ItemIsEnabled | QtCore.Qt.ItemIsSelectable
 859
 860         @misc_utils.log_exception(_moduleLogger)
 861         def headerData(self, section, orientation, role):
 862                 if orientation == QtCore.Qt.Horizontal and role == QtCore.Qt.DisplayRole:
 863                         return UnitData.HEADERS[section]
 864
 865                 return None
 866
 867         @misc_utils.log_exception(_moduleLogger)
 868         def index(self, row, column, parent):
 869                 if not self.hasIndex(row, column, parent):
 870                         return QtCore.QModelIndex()
 871
 872                 if parent.isValid():
 873                         return QtCore.QModelIndex()
 874
 875                 parentItem = UnitData.HEADERS
 876                 childItem = self._children[row]
 877                 if childItem:
 878                         return self.createIndex(row, column, childItem)
 879                 else:
 880                         return QtCore.QModelIndex()
 881
 882         @misc_utils.log_exception(_moduleLogger)
 883         def parent(self, index):
 884                 if not index.isValid():
 885                         return QtCore.QModelIndex()
 886
 887                 childItem = index.internalPointer()
 888                 if isinstance(childItem, UnitData):
 889                         return QtCore.QModelIndex()
 890                 elif childItem is UnitData.HEADERS:
 891                         return None
 892
 893         @misc_utils.log_exception(_moduleLogger)
 894         def rowCount(self, parent):
 895                 if 0 < parent.column():
 896                         return 0
 897
 898                 if not parent.isValid():
 899                         return len(self._children)
 900                 else:
 901                         return len(self._children)
 902
 903         def get_unit(self, index):
 904                 assert 0 <= index
 905                 return self._children[index]
 906
 907         def get_unit_names(self):
 908                 for child in self._children:
 909                         yield child.name
 910
 911         def index_unit(self, unitName):
 912                 for i, child in enumerate(self._children):
 913                         if child.name == unitName:
 914                                 return i
 915                 else:
 916                         raise RuntimeError("Unit not found")
 917
 918         def update_values(self, fromIndex, userInput):
 919                 value = self._sanitize_value(userInput)
 920                 func, arg = self._children[fromIndex].conversion
 921                 base = func.to_base(value, arg)
 922                 for i, child in enumerate(self._children):
 923                         if i == fromIndex:
 924                                 continue
 925                         func, arg = child.conversion
 926                         newValue = func.from_base(base, arg)
 927                         child.update_value(newValue)
 928
 929                 if self._sortSettings is not None:
 930                         self.sort(*self._sortSettings)
 931                 self._all_changed()
 932
 933         def __len__(self):
 934                 return len(self._children)
 935
 936         def _all_changed(self):
 937                 topLeft = self.createIndex(0, 0, self._children[0])
 938                 bottomRight = self.createIndex(len(self._children)-1, len(UnitData.HEADERS)-1, self._children[-1])
 939                 self.dataChanged.emit(topLeft, bottomRight)
 940
 941         def _sanitize_value(self, userEntry):
 942                 if self._categoryName == "Computer Numbers":
 943                         if userEntry == '':
 944                                 value = '0'
 945                         else:
 946                                 value = userEntry
 947                 else:
 948                         if userEntry == '':
 949                                 value = 0.0
 950                         else:
 951                                 value = float(userEntry)
 952                 return value
 953
 954
 955 class UnitWindow(object):
 956
 957         def __init__(self, parent, category, app):
 958                 self._app = app
 959                 self._categoryName = category
 960                 self._selectedIndex = 0
 961                 self._favoritesWindow = None
 962
 963                 self._selectedUnitName = QtGui.QLabel()
 964                 self._selectedUnitValue = QtGui.QLineEdit()
 965                 self._selectedUnitValue.textEdited.connect(self._on_value_edited)
 966                 self._selectedUnitSymbol = QtGui.QLabel()
 967
 968                 self._selectedUnitLayout = QtGui.QHBoxLayout()
 969                 self._selectedUnitLayout.addWidget(self._selectedUnitName)
 970                 self._selectedUnitLayout.addWidget(self._selectedUnitValue)
 971                 self._selectedUnitLayout.addWidget(self._selectedUnitSymbol)
 972
 973                 self._unitsModel = UnitModel(self._categoryName)
 974                 self._unitsView = QtGui.QTreeView()
 975                 self._unitsView.setModel(self._unitsModel)
 976                 self._unitsView.clicked.connect(self._on_unit_clicked)
 977                 self._unitsView.setUniformRowHeights(True)
 978                 self._unitsView.header().setSortIndicatorShown(True)
 979                 self._unitsView.header().setClickable(True)
 980                 self._unitsView.setSortingEnabled(True)
 981                 if not IS_MAEMO:
 982                         self._unitsView.setAlternatingRowColors(True)
 983                 if True:
 984                         self._unitsView.setHeaderHidden(True)
 985
 986                 self._layout = QtGui.QVBoxLayout()
 987                 self._layout.addLayout(self._selectedUnitLayout)
 988                 self._layout.addWidget(self._unitsView)
 989
 990                 centralWidget = QtGui.QWidget()
 991                 centralWidget.setLayout(self._layout)
 992
 993                 self._window = QtGui.QMainWindow(parent)
 994                 self._window.setAttribute(QtCore.Qt.WA_DeleteOnClose, True)
 995                 if parent is not None:
 996                         self._window.setWindowModality(QtCore.Qt.WindowModal)
 997                 self._window.setWindowTitle("%s - %s" % (constants.__pretty_app_name__, category))
 998                 self._window.setWindowIcon(QtGui.QIcon(app.appIconPath))
 999                 self._window.setCentralWidget(centralWidget)
1000
1001                 defaultUnitName = self._app.get_recent_unit(self._categoryName)
1002                 if defaultUnitName:
1003                         self.select_unit(defaultUnitName)
1004                 else:
1005                         self._select_unit(0)
1006                 self._unitsModel.sort(UnitData.VALUE_COLUMN_0)
1007
1008                 self._sortActionGroup = QtGui.QActionGroup(None)
1009                 self._sortByNameAction = QtGui.QAction(self._sortActionGroup)
1010                 self._sortByNameAction.setText("Sort By Name")
1011                 self._sortByNameAction.setStatusTip("Sort the units by name")
1012                 self._sortByNameAction.setToolTip("Sort the units by name")
1013                 self._sortByNameAction.setCheckable(True)
1014                 self._sortByValueAction = QtGui.QAction(self._sortActionGroup)
1015                 self._sortByValueAction.setText("Sort By Value")
1016                 self._sortByValueAction.setStatusTip("Sort the units by value")
1017                 self._sortByValueAction.setToolTip("Sort the units by value")
1018                 self._sortByValueAction.setCheckable(True)
1019                 self._sortByUnitAction = QtGui.QAction(self._sortActionGroup)
1020                 self._sortByUnitAction.setText("Sort By Unit")
1021                 self._sortByUnitAction.setStatusTip("Sort the units by unit")
1022                 self._sortByUnitAction.setToolTip("Sort the units by unit")
1023                 self._sortByUnitAction.setCheckable(True)
1024
1025                 self._sortByValueAction.setChecked(True)
1026
1027                 self._chooseFavoritesAction = QtGui.QAction(None)
1028                 self._chooseFavoritesAction.setText("Select Favorites")
1029                 self._chooseFavoritesAction.setShortcut(QtGui.QKeySequence("CTRL+f"))
1030                 self._chooseFavoritesAction.triggered.connect(self._on_choose_favorites)
1031
1032                 self._app.showFavoritesAction.toggled.connect(self._on_show_favorites)
1033
1034                 self._previousUnitAction = QtGui.QAction(None)
1035                 self._previousUnitAction.setText("Previous Unit")
1036                 self._previousUnitAction.setShortcut(QtGui.QKeySequence("Up"))
1037                 self._previousUnitAction.triggered.connect(self._on_previous_unit)
1038
1039                 self._nextUnitAction = QtGui.QAction(None)
1040                 self._nextUnitAction.setText("Next Unit")
1041                 self._nextUnitAction.setShortcut(QtGui.QKeySequence("Down"))
1042                 self._nextUnitAction.triggered.connect(self._on_next_unit)
1043
1044                 self._closeWindowAction = QtGui.QAction(None)
1045                 self._closeWindowAction.setText("Close Window")
1046                 self._closeWindowAction.setShortcut(QtGui.QKeySequence("CTRL+w"))
1047                 self._closeWindowAction.triggered.connect(self._on_close_window)
1048
1049                 if IS_MAEMO:
1050                         self._window.addAction(self._closeWindowAction)
1051                         self._window.addAction(self._app.quitAction)
1052                         self._window.addAction(self._app.fullscreenAction)
1053
1054                         fileMenu = self._window.menuBar().addMenu("&Units")
1055                         fileMenu.addAction(self._chooseFavoritesAction)
1056
1057                         viewMenu = self._window.menuBar().addMenu("&View")
1058                         viewMenu.addAction(self._app.showFavoritesAction)
1059                         viewMenu.addSeparator()
1060                         viewMenu.addAction(self._sortByNameAction)
1061                         viewMenu.addAction(self._sortByValueAction)
1062                         viewMenu.addAction(self._sortByUnitAction)
1063                         viewMenu.addSeparator()
1064                         viewMenu.addAction(self._app.jumpAction)
1065                         viewMenu.addAction(self._app.recentAction)
1066                 else:
1067                         fileMenu = self._window.menuBar().addMenu("&Units")
1068                         fileMenu.addAction(self._chooseFavoritesAction)
1069                         fileMenu.addAction(self._closeWindowAction)
1070                         fileMenu.addAction(self._app.quitAction)
1071
1072                         viewMenu = self._window.menuBar().addMenu("&View")
1073                         viewMenu.addAction(self._app.showFavoritesAction)
1074                         viewMenu.addSeparator()
1075                         viewMenu.addAction(self._sortByNameAction)
1076                         viewMenu.addAction(self._sortByValueAction)
1077                         viewMenu.addAction(self._sortByUnitAction)
1078                         viewMenu.addSeparator()
1079                         viewMenu.addAction(self._app.jumpAction)
1080                         viewMenu.addAction(self._app.recentAction)
1081                         viewMenu.addSeparator()
1082                         viewMenu.addAction(self._app.fullscreenAction)
1083
1084                 self._sortByNameAction.triggered.connect(self._on_sort_by_name)
1085                 self._sortByValueAction.triggered.connect(self._on_sort_by_value)
1086                 self._sortByUnitAction.triggered.connect(self._on_sort_by_unit)
1087
1088                 self._window.addAction(self._app.logAction)
1089                 self._window.addAction(self._nextUnitAction)
1090                 self._window.addAction(self._previousUnitAction)
1091                 self._window.addAction(self._chooseFavoritesAction)
1092
1093                 self._update_favorites()
1094                 self.set_fullscreen(self._app.fullscreenAction.isChecked())
1095                 self._window.show()
1096
1097         @property
1098         def window(self):
1099                 return self._window
1100
1101         def close(self):
1102                 for child in self.walk_children():
1103                         child.close()
1104                 self._window.close()
1105
1106         def set_fullscreen(self, isFullscreen):
1107                 if isFullscreen:
1108                         self._window.showFullScreen()
1109                 else:
1110                         self._window.showNormal()
1111
1112         def select_unit(self, unitName):
1113                 index = self._unitsModel.index_unit(unitName)
1114                 self._select_unit(index)
1115
1116         def walk_children(self):
1117                 if self._favoritesWindow is not None:
1118                         yield self._favoritesWindow
1119
1120         def _update_favorites(self):
1121                 if self._app.showFavoritesAction.isChecked():
1122                         unitNames = list(self._unitsModel.get_unit_names())
1123                         for i, unitName in enumerate(unitNames):
1124                                 if unitName in self._app.get_hidden_units(self._categoryName):
1125                                         self._unitsView.setRowHidden(i, self._unitsView.rootIndex(), True)
1126                                 else:
1127                                         self._unitsView.setRowHidden(i, self._unitsView.rootIndex(), False)
1128                 else:
1129                         for i in xrange(len(self._unitsModel)):
1130                                 self._unitsView.setRowHidden(i, self._unitsView.rootIndex(), False)
1131
1132         @misc_utils.log_exception(_moduleLogger)
1133         def _on_choose_favorites(self, obj = None):
1134                 assert self._favoritesWindow is None
1135                 self._favoritesWindow = FavoriteCategoriesWindow(
1136                         self._window,
1137                         self._app,
1138                         unit_data.get_units(self._categoryName),
1139                         self._app.get_hidden_units(self._categoryName)
1140                 )
1141                 self._favoritesWindow.window.destroyed.connect(self._on_close_favorites)
1142                 return self._favoritesWindow
1143
1144         @misc_utils.log_exception(_moduleLogger)
1145         def _on_show_favorites(self, checked = True):
1146                 if checked:
1147                         unitNames = list(self._unitsModel.get_unit_names())
1148                         for i, unitName in enumerate(unitNames):
1149                                 if unitName in self._app.get_hidden_units(self._categoryName):
1150                                         self._unitsView.setRowHidden(i, self._unitsView.rootIndex(), True)
1151                 else:
1152                         for i in xrange(len(self._unitsModel)):
1153                                 self._unitsView.setRowHidden(i, self._unitsView.rootIndex(), False)
1154
1155         @misc_utils.log_exception(_moduleLogger)
1156         def _on_close_favorites(self, obj = None):
1157                 self._favoritesWindow = None
1158                 self._update_favorites()
1159
1160         @misc_utils.log_exception(_moduleLogger)
1161         def _on_previous_unit(self, checked = True):
1162                 self._select_unit(self._selectedIndex - 1)
1163
1164         @misc_utils.log_exception(_moduleLogger)
1165         def _on_next_unit(self, checked = True):
1166                 self._select_unit(self._selectedIndex + 1)
1167
1168         @misc_utils.log_exception(_moduleLogger)
1169         def _on_close_window(self, checked = True):
1170                 self.close()
1171
1172         @misc_utils.log_exception(_moduleLogger)
1173         def _on_sort_by_name(self, checked = False):
1174                 self._unitsModel.sort(UnitData.NAME_COLUMN, QtCore.Qt.DescendingOrder)
1175
1176         @misc_utils.log_exception(_moduleLogger)
1177         def _on_sort_by_value(self, checked = False):
1178                 self._unitsModel.sort(UnitData.VALUE_COLUMN_0)
1179
1180         @misc_utils.log_exception(_moduleLogger)
1181         def _on_sort_by_unit(self, checked = False):
1182                 self._unitsModel.sort(UnitData.UNIT_COLUMN, QtCore.Qt.DescendingOrder)
1183
1184         @misc_utils.log_exception(_moduleLogger)
1185         def _on_unit_clicked(self, index):
1186                 self._select_unit(index.row())
1187
1188         @misc_utils.log_exception(_moduleLogger)
1189         def _on_value_edited(self, *args):
1190                 userInput = self._selectedUnitValue.text()
1191                 self._unitsModel.update_values(self._selectedIndex, str(userInput))
1192                 self._update_favorites()
1193
1194         def _select_unit(self, index):
1195                 unit = self._unitsModel.get_unit(index)
1196                 self._selectedUnitName.setText(unit.name)
1197                 self._selectedUnitValue.setText(str(unit.value))
1198                 self._selectedUnitSymbol.setText(unit.unit)
1199
1200                 self._selectedIndex = index
1201                 qindex = self._unitsModel.createIndex(index, 0, self._unitsModel.get_unit(index))
1202                 self._unitsView.scrollTo(qindex)
1203                 self._app.add_recent(self._categoryName, self._unitsModel.get_unit(index).name)
1204
1205
1206 def run_gonvert():
1207         app = QtGui.QApplication([])
1208         handle = Gonvert(app)
1209         return app.exec_()
1210
1211
1212 if __name__ == "__main__":
1213         logging.basicConfig(level = logging.DEBUG)
1214         try:
1215                 os.makedirs(constants._data_path_)
1216         except OSError, e:
1217                 if e.errno != 17:
1218                         raise
1219
1220         val = run_gonvert()
1221         sys.exit(val)