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 import maeqt
  17 from util import misc as misc_utils
  18 import unit_data
  19
  20
  21 _moduleLogger = logging.getLogger("gonvert_glade")
  22
  23
  24 IS_MAEMO = True
  25
  26
  27 def change_menu_label(widgets, labelname, newtext):
  28         item_label = widgets.get_widget(labelname).get_children()[0]
  29         item_label.set_text(newtext)
  30
  31
  32 def split_number(number):
  33         try:
  34                 fractional, integer = math.modf(number)
  35         except TypeError:
  36                 integerDisplay = number
  37                 fractionalDisplay = ""
  38         else:
  39                 integerDisplay = str(integer)
  40                 fractionalDisplay = str(fractional)
  41                 if "e+" in integerDisplay:
  42                         integerDisplay = number
  43                         fractionalDisplay = ""
  44                 elif "e-" in fractionalDisplay and 0.0 < integer:
  45                         integerDisplay = number
  46                         fractionalDisplay = ""
  47                 elif "e-" in fractionalDisplay:
  48                         integerDisplay = ""
  49                         fractionalDisplay = number
  50                 else:
  51                         integerDisplay = integerDisplay.split(".", 1)[0] + "."
  52                         fractionalDisplay = fractionalDisplay.rsplit(".", 1)[-1]
  53
  54         return integerDisplay, fractionalDisplay
  55
  56
  57 class Gonvert(object):
  58
  59         _DATA_PATHS = [
  60                 os.path.dirname(__file__),
  61                 os.path.join(os.path.dirname(__file__), "../share"),
  62                 os.path.join(os.path.dirname(__file__), "../data"),
  63                 '/usr/share/gonvert',
  64                 '/opt/gonvert/share',
  65         ]
  66
  67         def __init__(self, app):
  68                 self._dataPath = ""
  69                 for dataPath in self._DATA_PATHS:
  70                         appIconPath = os.path.join(dataPath, "pixmaps", "gonvert.png")
  71                         if os.path.isfile(appIconPath):
  72                                 self._dataPath = dataPath
  73                                 break
  74                 else:
  75                         raise RuntimeError("UI Descriptor not found!")
  76                 self._app = app
  77                 self._appIconPath = appIconPath
  78                 self._recent = []
  79                 self._hiddenCategories = set()
  80                 self._hiddenUnits = {}
  81                 self._clipboard = QtGui.QApplication.clipboard()
  82
  83                 self._jumpWindow = None
  84                 self._recentWindow = None
  85                 self._mainWindow = None
  86                 self._catWindow = None
  87                 self._quickWindow = None
  88
  89                 self._on_jump_close = lambda obj = None: self._on_child_close("_jumpWindow", obj)
  90                 self._on_recent_close = lambda obj = None: self._on_child_close("_recentWindow", obj)
  91                 self._on_cat_close = lambda obj = None: self._on_child_close("_catWindow", obj)
  92                 self._on_quick_close = lambda obj = None: self._on_child_close("_quickWindow", obj)
  93
  94                 self._condensedAction = QtGui.QAction(None)
  95                 self._condensedAction.setText("Condensed View")
  96                 self._condensedAction.setCheckable(True)
  97                 self._condensedAction.triggered.connect(self._on_condensed_start)
  98
  99                 self._jumpAction = QtGui.QAction(None)
 100                 self._jumpAction.setText("Quick Jump")
 101                 self._jumpAction.setStatusTip("Search for a unit and jump straight to it")
 102                 self._jumpAction.setToolTip("Search for a unit and jump straight to it")
 103                 self._jumpAction.setShortcut(QtGui.QKeySequence("CTRL+j"))
 104                 self._jumpAction.triggered.connect(self._on_jump_start)
 105
 106                 self._recentAction = QtGui.QAction(None)
 107                 self._recentAction.setText("Recent Units")
 108                 self._recentAction.setStatusTip("View the recent units")
 109                 self._recentAction.setToolTip("View the recent units")
 110                 self._recentAction.setShortcut(QtGui.QKeySequence("CTRL+r"))
 111                 self._recentAction.triggered.connect(self._on_recent_start)
 112
 113                 self._fullscreenAction = QtGui.QAction(None)
 114                 self._fullscreenAction.setText("Fullscreen")
 115                 self._fullscreenAction.setCheckable(True)
 116                 self._fullscreenAction.setShortcut(QtGui.QKeySequence("CTRL+Enter"))
 117                 self._fullscreenAction.toggled.connect(self._on_toggle_fullscreen)
 118
 119                 self._showFavoritesAction = QtGui.QAction(None)
 120                 self._showFavoritesAction.setCheckable(True)
 121                 self._showFavoritesAction.setText("Favorites Only")
 122
 123                 self._sortActionGroup = QtGui.QActionGroup(None)
 124                 self._sortByNameAction = QtGui.QAction(self._sortActionGroup)
 125                 self._sortByNameAction.setText("Sort By Name")
 126                 self._sortByNameAction.setStatusTip("Sort the units by name")
 127                 self._sortByNameAction.setToolTip("Sort the units by name")
 128                 self._sortByNameAction.setCheckable(True)
 129                 self._sortByValueAction = QtGui.QAction(self._sortActionGroup)
 130                 self._sortByValueAction.setText("Sort By Value")
 131                 self._sortByValueAction.setStatusTip("Sort the units by value")
 132                 self._sortByValueAction.setToolTip("Sort the units by value")
 133                 self._sortByValueAction.setCheckable(True)
 134                 self._sortByUnitAction = QtGui.QAction(self._sortActionGroup)
 135                 self._sortByUnitAction.setText("Sort By Unit")
 136                 self._sortByUnitAction.setStatusTip("Sort the units by unit")
 137                 self._sortByUnitAction.setToolTip("Sort the units by unit")
 138                 self._sortByUnitAction.setCheckable(True)
 139
 140                 self._sortByNameAction.setChecked(True)
 141
 142                 self._logAction = QtGui.QAction(None)
 143                 self._logAction.setText("Log")
 144                 self._logAction.setShortcut(QtGui.QKeySequence("CTRL+l"))
 145                 self._logAction.triggered.connect(self._on_log)
 146
 147                 self._quitAction = QtGui.QAction(None)
 148                 self._quitAction.setText("Quit")
 149                 self._quitAction.setShortcut(QtGui.QKeySequence("CTRL+q"))
 150                 self._quitAction.triggered.connect(self._on_quit)
 151
 152                 self._app.lastWindowClosed.connect(self._on_app_quit)
 153                 self.load_settings()
 154
 155                 self.request_category()
 156                 if self._recent:
 157                         self._mainWindow.select_category(self._recent[-1][0])
 158
 159         def request_category(self):
 160
 161                 if self._condensedAction.isChecked():
 162                         if self._catWindow is not None:
 163                                 self._catWindow.hide()
 164
 165                         if self._quickWindow is None:
 166                                 self._quickWindow = QuickConvert(None, self)
 167                                 self._quickWindow.window.destroyed.connect(self._on_quick_close)
 168                         else:
 169                                 self._quickWindow.show()
 170
 171                         self._mainWindow = self._quickWindow
 172                 else:
 173                         if self._quickWindow is not None:
 174                                 self._quickWindow.hide()
 175
 176                         if self._catWindow is None:
 177                                 self._catWindow = CategoryWindow(None, self)
 178                                 self._catWindow.window.destroyed.connect(self._on_cat_close)
 179                         else:
 180                                 self._catWindow.window.show()
 181
 182                         self._mainWindow = self._catWindow
 183
 184                 return self._mainWindow
 185
 186         def search_units(self):
 187                 jumpWindow = QuickJump(None, self)
 188                 jumpWindow.window.destroyed.connect(self._on_jump_close)
 189                 self._jumpWindow = jumpWindow
 190                 return self._jumpWindow
 191
 192         def show_recent(self):
 193                 recentWindow = Recent(None, self)
 194                 recentWindow.window.destroyed.connect(self._on_recent_close)
 195                 self._recentWindow = recentWindow
 196                 return self._recentWindow
 197
 198         def add_recent(self, categoryName, unitName):
 199                 catUnit = categoryName, unitName
 200                 try:
 201                         self._recent.remove(catUnit)
 202                 except ValueError:
 203                         pass # ignore if its not already in the recent history
 204                 assert catUnit not in self._recent
 205                 self._recent.append(catUnit)
 206
 207         def get_recent_unit(self, categoryName, fromMostRecent = 0):
 208                 recentUnitName = ""
 209                 for catName, unitName in reversed(self._recent):
 210                         if catName == categoryName:
 211                                 recentUnitName = unitName
 212                                 if fromMostRecent <= 0:
 213                                         break
 214                                 else:
 215                                         fromMostRecent -= 1
 216                 return recentUnitName
 217
 218         def get_recent(self):
 219                 return reversed(self._recent)
 220
 221         @property
 222         def hiddenCategories(self):
 223                 return self._hiddenCategories
 224
 225         def get_hidden_units(self, categoryName):
 226                 try:
 227                         return self._hiddenUnits[categoryName]
 228                 except KeyError:
 229                         self._hiddenUnits[categoryName] = set()
 230                         return self._hiddenUnits[categoryName]
 231
 232         def load_settings(self):
 233                 try:
 234                         with open(constants._user_settings_, "r") as settingsFile:
 235                                 settings = simplejson.load(settingsFile)
 236                 except IOError, e:
 237                         _moduleLogger.info("No settings")
 238                         settings = {}
 239                 except ValueError:
 240                         _moduleLogger.info("Settings were corrupt")
 241                         settings = {}
 242
 243                 self._fullscreenAction.setChecked(settings.get("isFullScreen", False))
 244
 245                 sortBy = settings.get("sortBy", "name")
 246                 if sortBy not in ["name", "value", "unit"]:
 247                         _moduleLogger.info("Setting sortBy is not a valid value: %s" % sortBy)
 248                         sortBy = "name"
 249                 if sortBy == "name":
 250                         self._sortByNameAction.setChecked(True)
 251                         self._sortByValueAction.setChecked(False)
 252                         self._sortByUnitAction.setChecked(False)
 253                 elif sortBy == "value":
 254                         self._sortByNameAction.setChecked(False)
 255                         self._sortByValueAction.setChecked(True)
 256                         self._sortByUnitAction.setChecked(False)
 257                 elif sortBy == "unit":
 258                         self._sortByNameAction.setChecked(False)
 259                         self._sortByValueAction.setChecked(False)
 260                         self._sortByUnitAction.setChecked(True)
 261                 else:
 262                         raise RuntimeError("How did this sortBy come about? %s" % sortBy)
 263
 264                 recent = settings.get("recent", self._recent)
 265                 for category, unit in recent:
 266                         self.add_recent(category, unit)
 267
 268                 self._hiddenCategories = set(settings.get("hiddenCategories", set()))
 269                 self._hiddenUnits = dict(
 270                         (catName, set(units))
 271                         for (catName, units) in settings.get("hiddenUnits", {}).iteritems()
 272                 )
 273
 274                 self._showFavoritesAction.setChecked(settings.get("showFavorites", True))
 275
 276                 self._condensedAction.setChecked(settings.get("useQuick", self._condensedAction.isChecked()))
 277
 278         def save_settings(self):
 279                 if self._sortByNameAction.isChecked():
 280                         sortBy = "name"
 281                 elif self._sortByValueAction.isChecked():
 282                         sortBy = "value"
 283                 elif self._sortByUnitAction.isChecked():
 284                         sortBy = "unit"
 285                 else:
 286                         raise RuntimeError("Unknown sorting value")
 287                 settings = {
 288                         "isFullScreen": self._fullscreenAction.isChecked(),
 289                         "recent": self._recent,
 290                         "hiddenCategories": list(self._hiddenCategories),
 291                         "hiddenUnits": dict(
 292                                 (catName, list(units))
 293                                 for (catName, units) in self._hiddenUnits.iteritems()
 294                         ),
 295                         "showFavorites": self._showFavoritesAction.isChecked(),
 296                         "useQuick": self._condensedAction.isChecked(),
 297                         "sortBy": sortBy,
 298                 }
 299                 with open(constants._user_settings_, "w") as settingsFile:
 300                         simplejson.dump(settings, settingsFile)
 301
 302         @property
 303         def appIconPath(self):
 304                 return self._appIconPath
 305
 306         @property
 307         def jumpAction(self):
 308                 return self._jumpAction
 309
 310         @property
 311         def recentAction(self):
 312                 return self._recentAction
 313
 314         @property
 315         def fullscreenAction(self):
 316                 return self._fullscreenAction
 317
 318         @property
 319         def condensedAction(self):
 320                 return self._condensedAction
 321
 322         @property
 323         def sortByNameAction(self):
 324                 return self._sortByNameAction
 325
 326         @property
 327         def sortByValueAction(self):
 328                 return self._sortByValueAction
 329
 330         @property
 331         def sortByUnitAction(self):
 332                 return self._sortByUnitAction
 333
 334         @property
 335         def logAction(self):
 336                 return self._logAction
 337
 338         @property
 339         def quitAction(self):
 340                 return self._quitAction
 341
 342         @property
 343         def showFavoritesAction(self):
 344                 return self._showFavoritesAction
 345
 346         def _walk_children(self):
 347                 if self._catWindow is not None:
 348                         yield self._catWindow
 349                 if self._quickWindow is not None:
 350                         yield self._quickWindow
 351                 if self._jumpWindow is not None:
 352                         yield self._jumpWindow
 353                 if self._recentWindow is not None:
 354                         yield self._recentWindow
 355
 356         def _close_windows(self):
 357                 if self._catWindow is not None:
 358                         self._catWindow.window.destroyed.disconnect(self._on_cat_close)
 359                         self._catWindow.close()
 360                         self._catWindow = None
 361                 if self._quickWindow is not None:
 362                         self._quickWindow.window.destroyed.disconnect(self._on_quick_close)
 363                         self._quickWindow.close()
 364                         self._quickWindow = None
 365                 if self._jumpWindow is not None:
 366                         self._jumpWindow.window.destroyed.disconnect(self._on_jump_close)
 367                         self._jumpWindow.close()
 368                         self._jumpWindow = None
 369                 if self._recentWindow is not None:
 370                         self._recentWindow.window.destroyed.disconnect(self._on_recent_close)
 371                         self._recentWindow.close()
 372                         self._recentWindow = None
 373
 374         @misc_utils.log_exception(_moduleLogger)
 375         def _on_app_quit(self, checked = False):
 376                 self.save_settings()
 377
 378         @misc_utils.log_exception(_moduleLogger)
 379         def _on_child_close(self, name, obj = None):
 380                 if not hasattr(self, name):
 381                         _moduleLogger.info("Something weird going on when we don't have a %s" % name)
 382                         return
 383                 setattr(self, name, None)
 384
 385         @misc_utils.log_exception(_moduleLogger)
 386         def _on_toggle_fullscreen(self, checked = False):
 387                 for window in self._walk_children():
 388                         window.set_fullscreen(checked)
 389
 390         @misc_utils.log_exception(_moduleLogger)
 391         def _on_condensed_start(self, checked = False):
 392                 self.request_category()
 393                 if self._recent:
 394                         self._mainWindow.select_category(self._recent[-1][0])
 395
 396         @misc_utils.log_exception(_moduleLogger)
 397         def _on_jump_start(self, checked = False):
 398                 self.search_units()
 399
 400         @misc_utils.log_exception(_moduleLogger)
 401         def _on_recent_start(self, checked = False):
 402                 self.show_recent()
 403
 404         @misc_utils.log_exception(_moduleLogger)
 405         def _on_log(self, checked = False):
 406                 with open(constants._user_logpath_, "r") as f:
 407                         logLines = f.xreadlines()
 408                         log = "".join(logLines)
 409                         self._clipboard.setText(log)
 410
 411         @misc_utils.log_exception(_moduleLogger)
 412         def _on_quit(self, checked = False):
 413                 self._close_windows()
 414
 415
 416 class QuickJump(object):
 417
 418         MINIMAL_ENTRY = 3
 419
 420         def __init__(self, parent, app):
 421                 self._app = app
 422
 423                 self._searchLabel = QtGui.QLabel("Search:")
 424                 self._searchEntry = QtGui.QLineEdit("")
 425                 self._searchEntry.textEdited.connect(self._on_search_edited)
 426
 427                 self._entryLayout = QtGui.QHBoxLayout()
 428                 self._entryLayout.addWidget(self._searchLabel)
 429                 self._entryLayout.addWidget(self._searchEntry)
 430
 431                 self._resultsBox = QtGui.QTreeWidget()
 432                 self._resultsBox.setHeaderLabels(["Categories", "Units"])
 433                 self._resultsBox.setHeaderHidden(True)
 434                 if not IS_MAEMO:
 435                         self._resultsBox.setAlternatingRowColors(True)
 436                 self._resultsBox.itemClicked.connect(self._on_result_clicked)
 437
 438                 self._layout = QtGui.QVBoxLayout()
 439                 self._layout.addLayout(self._entryLayout)
 440                 self._layout.addWidget(self._resultsBox)
 441
 442                 centralWidget = QtGui.QWidget()
 443                 centralWidget.setLayout(self._layout)
 444
 445                 self._window = QtGui.QMainWindow(parent)
 446                 self._window.setAttribute(QtCore.Qt.WA_DeleteOnClose, True)
 447                 maeqt.set_autorient(self._window, True)
 448                 maeqt.set_stackable(self._window, True)
 449                 self._window.setWindowTitle("%s - Quick Jump" % constants.__pretty_app_name__)
 450                 self._window.setWindowIcon(QtGui.QIcon(self._app.appIconPath))
 451                 self._window.setCentralWidget(centralWidget)
 452
 453                 self._closeWindowAction = QtGui.QAction(None)
 454                 self._closeWindowAction.setText("Close")
 455                 self._closeWindowAction.setShortcut(QtGui.QKeySequence("CTRL+w"))
 456                 self._closeWindowAction.triggered.connect(self._on_close_window)
 457
 458                 if IS_MAEMO:
 459                         self._window.addAction(self._closeWindowAction)
 460                         self._window.addAction(self._app.quitAction)
 461                         self._window.addAction(self._app.fullscreenAction)
 462                 else:
 463                         fileMenu = self._window.menuBar().addMenu("&Units")
 464                         fileMenu.addAction(self._closeWindowAction)
 465                         fileMenu.addAction(self._app.quitAction)
 466
 467                         viewMenu = self._window.menuBar().addMenu("&View")
 468                         viewMenu.addAction(self._app.fullscreenAction)
 469
 470                 self._window.addAction(self._app.logAction)
 471
 472                 self.set_fullscreen(self._app.fullscreenAction.isChecked())
 473                 self._window.show()
 474
 475         @property
 476         def window(self):
 477                 return self._window
 478
 479         def show(self):
 480                 self._window.show()
 481
 482         def hide(self):
 483                 self._window.hide()
 484
 485         def close(self):
 486                 self._window.close()
 487
 488         def set_fullscreen(self, isFullscreen):
 489                 if isFullscreen:
 490                         self._window.showFullScreen()
 491                 else:
 492                         self._window.showNormal()
 493
 494         @misc_utils.log_exception(_moduleLogger)
 495         def _on_close_window(self, checked = True):
 496                 self.close()
 497
 498         @misc_utils.log_exception(_moduleLogger)
 499         def _on_result_clicked(self, item, columnIndex):
 500                 categoryName = unicode(item.text(0))
 501                 unitName = unicode(item.text(1))
 502                 catWindow = self._app.request_category()
 503                 unitsWindow = catWindow.select_category(categoryName)
 504                 unitsWindow.select_unit(unitName)
 505                 self.close()
 506
 507         @misc_utils.log_exception(_moduleLogger)
 508         def _on_search_edited(self, *args):
 509                 userInput = self._searchEntry.text()
 510                 if len(userInput) <  self.MINIMAL_ENTRY:
 511                         return
 512
 513                 self._resultsBox.clear()
 514                 lowerInput = str(userInput).lower()
 515                 for catIndex, category in enumerate(unit_data.UNIT_CATEGORIES):
 516                         units = unit_data.get_units(category)
 517                         for unitIndex, unit in enumerate(units):
 518                                 loweredUnit = unit.lower()
 519                                 if lowerInput in loweredUnit:
 520                                         twi = QtGui.QTreeWidgetItem(self._resultsBox)
 521                                         twi.setText(0, category)
 522                                         twi.setText(1, unit)
 523
 524
 525 class Recent(object):
 526
 527         def __init__(self, parent, app):
 528                 self._app = app
 529
 530                 self._resultsBox = QtGui.QTreeWidget()
 531                 self._resultsBox.setHeaderLabels(["Categories", "Units"])
 532                 self._resultsBox.setHeaderHidden(True)
 533                 if not IS_MAEMO:
 534                         self._resultsBox.setAlternatingRowColors(True)
 535                 self._resultsBox.itemClicked.connect(self._on_result_clicked)
 536
 537                 self._layout = QtGui.QVBoxLayout()
 538                 self._layout.addWidget(self._resultsBox)
 539
 540                 centralWidget = QtGui.QWidget()
 541                 centralWidget.setLayout(self._layout)
 542
 543                 self._window = QtGui.QMainWindow(parent)
 544                 self._window.setAttribute(QtCore.Qt.WA_DeleteOnClose, True)
 545                 maeqt.set_autorient(self._window, True)
 546                 maeqt.set_stackable(self._window, True)
 547                 self._window.setWindowTitle("%s - Recent" % constants.__pretty_app_name__)
 548                 self._window.setWindowIcon(QtGui.QIcon(self._app.appIconPath))
 549                 self._window.setCentralWidget(centralWidget)
 550
 551                 for cat, unit in self._app.get_recent():
 552                         twi = QtGui.QTreeWidgetItem(self._resultsBox)
 553                         twi.setText(0, cat)
 554                         twi.setText(1, unit)
 555
 556                 self._closeWindowAction = QtGui.QAction(None)
 557                 self._closeWindowAction.setText("Close")
 558                 self._closeWindowAction.setShortcut(QtGui.QKeySequence("CTRL+w"))
 559                 self._closeWindowAction.triggered.connect(self._on_close_window)
 560
 561                 if IS_MAEMO:
 562                         self._window.addAction(self._closeWindowAction)
 563                         self._window.addAction(self._app.quitAction)
 564                         self._window.addAction(self._app.fullscreenAction)
 565                 else:
 566                         fileMenu = self._window.menuBar().addMenu("&Units")
 567                         fileMenu.addAction(self._closeWindowAction)
 568                         fileMenu.addAction(self._app.quitAction)
 569
 570                         viewMenu = self._window.menuBar().addMenu("&View")
 571                         viewMenu.addAction(self._app.fullscreenAction)
 572
 573                 self._window.addAction(self._app.logAction)
 574
 575                 self.set_fullscreen(self._app.fullscreenAction.isChecked())
 576                 self._window.show()
 577
 578         @property
 579         def window(self):
 580                 return self._window
 581
 582         def show(self):
 583                 self._window.show()
 584
 585         def hide(self):
 586                 self._window.hide()
 587
 588         def close(self):
 589                 self._window.close()
 590
 591         def set_fullscreen(self, isFullscreen):
 592                 if isFullscreen:
 593                         self._window.showFullScreen()
 594                 else:
 595                         self._window.showNormal()
 596
 597         @misc_utils.log_exception(_moduleLogger)
 598         def _on_close_window(self, checked = True):
 599                 self.close()
 600
 601         @misc_utils.log_exception(_moduleLogger)
 602         def _on_result_clicked(self, item, columnIndex):
 603                 categoryName = unicode(item.text(0))
 604                 unitName = unicode(item.text(1))
 605                 catWindow = self._app.request_category()
 606                 unitsWindow = catWindow.select_category(categoryName)
 607                 unitsWindow.select_unit(unitName)
 608                 self.close()
 609
 610
 611 class QuickConvert(object):
 612
 613         def __init__(self, parent, app):
 614                 self._app = app
 615                 self._categoryName = ""
 616                 self._inputUnitName = ""
 617                 self._outputUnitName = ""
 618                 self._unitNames = []
 619                 self._favoritesWindow = None
 620
 621                 self._inputUnitValue = QtGui.QLineEdit()
 622                 self._inputUnitValue.setInputMethodHints(QtCore.Qt.ImhPreferNumbers)
 623                 self._inputUnitValue.textEdited.connect(self._on_value_edited)
 624                 self._inputUnitSymbol = QtGui.QLabel()
 625
 626                 self._outputUnitValue = QtGui.QLabel()
 627                 self._outputUnitSymbol = QtGui.QLabel()
 628
 629                 self._conversionLayout = QtGui.QHBoxLayout()
 630                 self._conversionLayout.addWidget(self._inputUnitValue)
 631                 self._conversionLayout.addWidget(self._inputUnitSymbol)
 632                 self._conversionLayout.addWidget(self._outputUnitValue)
 633                 self._conversionLayout.addWidget(self._outputUnitSymbol)
 634
 635                 self._categoryView = QtGui.QTreeWidget()
 636                 self._categoryView.setHeaderLabels(["Categories"])
 637                 self._categoryView.setHeaderHidden(False)
 638                 if not IS_MAEMO:
 639                         self._categoryView.setAlternatingRowColors(True)
 640                 self._categoryView.setSelectionBehavior(QtGui.QAbstractItemView.SelectRows)
 641                 self._categoryView.setSelectionMode(QtGui.QAbstractItemView.SingleSelection)
 642                 for catName in unit_data.UNIT_CATEGORIES:
 643                         twi = QtGui.QTreeWidgetItem(self._categoryView)
 644                         twi.setText(0, catName)
 645                 self._categorySelection = self._categoryView.selectionModel()
 646                 self._categorySelection.selectionChanged.connect(self._on_category_selection_changed)
 647
 648                 self._inputView = QtGui.QTreeWidget()
 649                 self._inputView.setHeaderLabels(["From", "Name"])
 650                 self._inputView.setHeaderHidden(False)
 651                 self._inputView.header().hideSection(1)
 652                 if not IS_MAEMO:
 653                         self._inputView.setAlternatingRowColors(True)
 654                 self._inputView.setSelectionBehavior(QtGui.QAbstractItemView.SelectRows)
 655                 self._inputView.setSelectionMode(QtGui.QAbstractItemView.SingleSelection)
 656                 self._inputSelection = self._inputView.selectionModel()
 657                 self._inputSelection.selectionChanged.connect(self._on_input_selection_changed)
 658
 659                 self._outputView = QtGui.QTreeWidget()
 660                 self._outputView.setHeaderLabels(["To", "Name"])
 661                 self._outputView.setHeaderHidden(False)
 662                 self._outputView.header().hideSection(1)
 663                 if not IS_MAEMO:
 664                         self._outputView.setAlternatingRowColors(True)
 665                 self._outputView.setSelectionBehavior(QtGui.QAbstractItemView.SelectRows)
 666                 self._outputView.setSelectionMode(QtGui.QAbstractItemView.SingleSelection)
 667                 self._outputWidgets = []
 668                 self._outputSelection = self._outputView.selectionModel()
 669                 self._outputSelection.selectionChanged.connect(self._on_output_selection_changed)
 670
 671                 self._selectionLayout = QtGui.QHBoxLayout()
 672                 self._selectionLayout.addWidget(self._categoryView)
 673                 self._selectionLayout.addWidget(self._inputView)
 674                 self._selectionLayout.addWidget(self._outputView)
 675
 676                 self._layout = QtGui.QVBoxLayout()
 677                 self._layout.addLayout(self._conversionLayout)
 678                 self._layout.addLayout(self._selectionLayout)
 679
 680                 centralWidget = QtGui.QWidget()
 681                 centralWidget.setLayout(self._layout)
 682
 683                 self._window = QtGui.QMainWindow(parent)
 684                 self._window.setAttribute(QtCore.Qt.WA_DeleteOnClose, True)
 685                 maeqt.set_autorient(self._window, True)
 686                 maeqt.set_stackable(self._window, True)
 687                 self._window.setWindowTitle("%s - Quick Convert" % (constants.__pretty_app_name__, ))
 688                 self._window.setWindowIcon(QtGui.QIcon(app.appIconPath))
 689                 self._window.setCentralWidget(centralWidget)
 690
 691                 self._chooseCatFavoritesAction = QtGui.QAction(None)
 692                 self._chooseCatFavoritesAction.setText("Select Categories")
 693                 self._chooseCatFavoritesAction.triggered.connect(self._on_choose_category_favorites)
 694
 695                 self._chooseUnitFavoritesAction = QtGui.QAction(None)
 696                 self._chooseUnitFavoritesAction.setText("Select Units")
 697                 self._chooseUnitFavoritesAction.triggered.connect(self._on_choose_unit_favorites)
 698                 self._chooseUnitFavoritesAction.setEnabled(False)
 699
 700                 self._app.showFavoritesAction.toggled.connect(self._on_show_favorites)
 701
 702                 self._closeWindowAction = QtGui.QAction(None)
 703                 self._closeWindowAction.setText("Close Window")
 704                 self._closeWindowAction.setShortcut(QtGui.QKeySequence("CTRL+w"))
 705                 self._closeWindowAction.triggered.connect(self._on_close_window)
 706
 707                 if IS_MAEMO:
 708                         self._window.addAction(self._closeWindowAction)
 709                         self._window.addAction(self._app.quitAction)
 710                         self._window.addAction(self._app.fullscreenAction)
 711
 712                         fileMenu = self._window.menuBar().addMenu("&Units")
 713                         fileMenu.addAction(self._chooseCatFavoritesAction)
 714                         fileMenu.addAction(self._chooseUnitFavoritesAction)
 715
 716                         viewMenu = self._window.menuBar().addMenu("&View")
 717                         viewMenu.addAction(self._app.showFavoritesAction)
 718                         viewMenu.addAction(self._app.condensedAction)
 719                         viewMenu.addSeparator()
 720                         viewMenu.addAction(self._app.jumpAction)
 721                         viewMenu.addAction(self._app.recentAction)
 722                 else:
 723                         fileMenu = self._window.menuBar().addMenu("&Units")
 724                         fileMenu.addAction(self._chooseCatFavoritesAction)
 725                         fileMenu.addAction(self._chooseUnitFavoritesAction)
 726                         fileMenu.addAction(self._closeWindowAction)
 727                         fileMenu.addAction(self._app.quitAction)
 728
 729                         viewMenu = self._window.menuBar().addMenu("&View")
 730                         viewMenu.addAction(self._app.showFavoritesAction)
 731                         viewMenu.addAction(self._app.condensedAction)
 732                         viewMenu.addSeparator()
 733                         viewMenu.addAction(self._app.jumpAction)
 734                         viewMenu.addAction(self._app.recentAction)
 735                         viewMenu.addSeparator()
 736                         viewMenu.addAction(self._app.fullscreenAction)
 737
 738                 self._window.addAction(self._app.logAction)
 739
 740                 self._update_favorites()
 741                 self.set_fullscreen(self._app.fullscreenAction.isChecked())
 742                 self._window.show()
 743
 744         @property
 745         def window(self):
 746                 return self._window
 747
 748         def show(self):
 749                 self._window.show()
 750
 751         def hide(self):
 752                 self._window.hide()
 753
 754         def close(self):
 755                 self._window.close()
 756
 757         def set_fullscreen(self, isFullscreen):
 758                 if isFullscreen:
 759                         self._window.showFullScreen()
 760                 else:
 761                         self._window.showNormal()
 762
 763         def select_category(self, categoryName):
 764                 self._inputUnitName = ""
 765                 self._outputUnitName = ""
 766                 self._inputUnitValue.setText("")
 767                 self._inputUnitSymbol.setText("")
 768                 self._inputView.clear()
 769                 self._outputUnitValue.setText("")
 770                 self._outputUnitSymbol.setText("")
 771                 self._outputView.clear()
 772                 self._categoryName = categoryName
 773                 self._chooseUnitFavoritesAction.setEnabled(True)
 774
 775                 unitData = unit_data.UNIT_DESCRIPTIONS[categoryName]
 776                 self._unitNames = list(unit_data.get_units(categoryName))
 777                 self._unitNames.sort()
 778                 for key in self._unitNames:
 779                         conversion, unit, description = unitData[key]
 780                         if not unit:
 781                                 unit = key
 782
 783                         twi = QtGui.QTreeWidgetItem(self._inputView)
 784                         twi.setText(0, unit)
 785                         twi.setText(1, key)
 786
 787                         twi = QtGui.QTreeWidgetItem(self._outputView)
 788                         twi.setText(0, unit)
 789                         twi.setText(1, key)
 790
 791                 i = unit_data.UNIT_CATEGORIES.index(categoryName)
 792                 rootIndex = self._categoryView.rootIndex()
 793                 currentIndex = self._categoryView.model().index(i, 0, rootIndex)
 794                 self._categoryView.scrollTo(currentIndex)
 795
 796                 defaultInputUnitName = self._app.get_recent_unit(categoryName)
 797                 if defaultInputUnitName:
 798                         self.select_input(defaultInputUnitName)
 799                         defaultOutputUnitName = self._app.get_recent_unit(categoryName, 1)
 800                         assert defaultOutputUnitName
 801                         self.select_output(defaultOutputUnitName)
 802
 803                 return self
 804
 805         def select_unit(self, name):
 806                 self.select_input(name)
 807
 808         def select_input(self, name):
 809                 self._app.add_recent(self._categoryName, name)
 810                 self._inputUnitName = name
 811
 812                 unitData = unit_data.UNIT_DESCRIPTIONS[self._categoryName]
 813                 conversion, unit, description = unitData[name]
 814
 815                 self._inputUnitSymbol.setText(unit if unit else name)
 816
 817                 i = self._unitNames.index(name)
 818                 rootIndex = self._inputView.rootIndex()
 819                 currentIndex = self._inputView.model().index(i, 0, rootIndex)
 820                 self._inputView.scrollTo(currentIndex)
 821
 822                 if "" not in [self._categoryName, self._inputUnitName, self._outputUnitName]:
 823                         self._update_conversion()
 824
 825         def select_output(self, name):
 826                 # Add the output to recent but don't make things weird by making it the most recent
 827                 self._app.add_recent(self._categoryName, name)
 828                 self._app.add_recent(self._categoryName, self._inputUnitName)
 829                 self._outputUnitName = name
 830
 831                 unitData = unit_data.UNIT_DESCRIPTIONS[self._categoryName]
 832                 conversion, unit, description = unitData[name]
 833
 834                 self._outputUnitSymbol.setText(unit if unit else name)
 835
 836                 i = self._unitNames.index(name)
 837                 rootIndex = self._outputView.rootIndex()
 838                 currentIndex = self._outputView.model().index(i, 0, rootIndex)
 839                 self._outputView.scrollTo(currentIndex)
 840
 841                 if "" not in [self._categoryName, self._inputUnitName, self._outputUnitName]:
 842                         self._update_conversion()
 843
 844         def _sanitize_value(self, userEntry):
 845                 if self._categoryName == "Computer Numbers":
 846                         if userEntry == '':
 847                                 value = '0'
 848                         else:
 849                                 value = userEntry
 850                 else:
 851                         if userEntry == '':
 852                                 value = 0.0
 853                         else:
 854                                 value = float(userEntry)
 855                 return value
 856
 857         def _update_conversion(self):
 858                 assert self._categoryName
 859                 assert self._inputUnitName
 860                 assert self._outputUnitName
 861
 862                 userInput = str(self._inputUnitValue.text())
 863                 value = self._sanitize_value(userInput)
 864
 865                 unitData = unit_data.UNIT_DESCRIPTIONS[self._categoryName]
 866                 inputConversion, _, _ = unitData[self._inputUnitName]
 867                 outputConversion, _, _ = unitData[self._outputUnitName]
 868
 869                 func, arg = inputConversion
 870                 base = func.to_base(value, arg)
 871
 872                 func, arg = outputConversion
 873                 newValue = func.from_base(base, arg)
 874                 self._outputUnitValue.setText(str(newValue))
 875
 876         def _update_favorites(self):
 877                 if self._app.showFavoritesAction.isChecked():
 878                         assert self._categoryView.topLevelItemCount() == len(unit_data.UNIT_CATEGORIES)
 879                         for i, catName in enumerate(unit_data.UNIT_CATEGORIES):
 880                                 if catName in self._app.hiddenCategories:
 881                                         self._categoryView.setRowHidden(i, self._categoryView.rootIndex(), True)
 882                                 else:
 883                                         self._categoryView.setRowHidden(i, self._categoryView.rootIndex(), False)
 884
 885                         for i, unitName in enumerate(self._unitNames):
 886                                 if unitName in self._app.get_hidden_units(self._categoryName):
 887                                         self._inputView.setRowHidden(i, self._inputView.rootIndex(), True)
 888                                         self._outputView.setRowHidden(i, self._outputView.rootIndex(), True)
 889                                 else:
 890                                         self._inputView.setRowHidden(i, self._inputView.rootIndex(), False)
 891                                         self._outputView.setRowHidden(i, self._outputView.rootIndex(), False)
 892                 else:
 893                         for i in xrange(self._categoryView.topLevelItemCount()):
 894                                 self._categoryView.setRowHidden(i, self._categoryView.rootIndex(), False)
 895
 896                         for i in xrange(len(self._unitNames)):
 897                                 self._inputView.setRowHidden(i, self._inputView.rootIndex(), False)
 898                                 self._outputView.setRowHidden(i, self._outputView.rootIndex(), False)
 899
 900         @misc_utils.log_exception(_moduleLogger)
 901         def _on_close_window(self, checked = True):
 902                 self.close()
 903
 904         @misc_utils.log_exception(_moduleLogger)
 905         def _on_show_favorites(self, checked = True):
 906                 if checked:
 907                         assert self._categoryView.topLevelItemCount() == len(unit_data.UNIT_CATEGORIES)
 908                         for i, catName in enumerate(unit_data.UNIT_CATEGORIES):
 909                                 if catName in self._app.hiddenCategories:
 910                                         self._categoryView.setRowHidden(i, self._categoryView.rootIndex(), True)
 911
 912                         for i, unitName in enumerate(self._unitNames):
 913                                 if unitName in self._app.get_hidden_units(self._categoryName):
 914                                         self._inputView.setRowHidden(i, self._inputView.rootIndex(), True)
 915                                         self._outputView.setRowHidden(i, self._outputView.rootIndex(), True)
 916                 else:
 917                         for i in xrange(self._categoryView.topLevelItemCount()):
 918                                 self._categoryView.setRowHidden(i, self._categoryView.rootIndex(), False)
 919
 920                         for i in xrange(len(self._unitNames)):
 921                                 self._inputView.setRowHidden(i, self._inputView.rootIndex(), False)
 922                                 self._outputView.setRowHidden(i, self._outputView.rootIndex(), False)
 923
 924         @misc_utils.log_exception(_moduleLogger)
 925         def _on_choose_category_favorites(self, obj = None):
 926                 assert self._favoritesWindow is None
 927                 self._favoritesWindow = FavoritesWindow(
 928                         self._window,
 929                         self._app,
 930                         unit_data.UNIT_CATEGORIES,
 931                         self._app.hiddenCategories
 932                 )
 933                 self._favoritesWindow.window.destroyed.connect(self._on_close_favorites)
 934                 return self._favoritesWindow
 935
 936         @misc_utils.log_exception(_moduleLogger)
 937         def _on_choose_unit_favorites(self, obj = None):
 938                 assert self._favoritesWindow is None
 939                 self._favoritesWindow = FavoritesWindow(
 940                         self._window,
 941                         self._app,
 942                         unit_data.get_units(self._categoryName),
 943                         self._app.get_hidden_units(self._categoryName)
 944                 )
 945                 self._favoritesWindow.window.destroyed.connect(self._on_close_favorites)
 946                 return self._favoritesWindow
 947
 948         @misc_utils.log_exception(_moduleLogger)
 949         def _on_close_favorites(self, obj = None):
 950                 self._favoritesWindow = None
 951                 self._update_favorites()
 952
 953         @misc_utils.log_exception(_moduleLogger)
 954         def _on_value_edited(self, *args):
 955                 self._update_conversion()
 956
 957         @misc_utils.log_exception(_moduleLogger)
 958         def _on_category_selection_changed(self, selected, deselected):
 959                 selectedNames = [
 960                         str(item.text(0))
 961                         for item in self._categoryView.selectedItems()
 962                 ]
 963                 assert len(selectedNames) == 1
 964                 self.select_category(selectedNames[0])
 965
 966         @misc_utils.log_exception(_moduleLogger)
 967         def _on_input_selection_changed(self, selected, deselected):
 968                 selectedNames = [
 969                         str(item.text(1))
 970                         for item in self._inputView.selectedItems()
 971                 ]
 972                 if selectedNames:
 973                         assert len(selectedNames) == 1
 974                         name = selectedNames[0]
 975                         self.select_input(name)
 976                 else:
 977                         pass
 978
 979         @misc_utils.log_exception(_moduleLogger)
 980         def _on_output_selection_changed(self, selected, deselected):
 981                 selectedNames = [
 982                         str(item.text(1))
 983                         for item in self._outputView.selectedItems()
 984                 ]
 985                 if selectedNames:
 986                         assert len(selectedNames) == 1
 987                         name = selectedNames[0]
 988                         self.select_output(name)
 989                 else:
 990                         pass
 991
 992
 993 class FavoritesWindow(object):
 994
 995         def __init__(self, parent, app, source, hidden):
 996                 self._app = app
 997                 self._source = list(source)
 998                 self._hidden = hidden
 999
1000                 self._categories = QtGui.QTreeWidget()
1001                 self._categories.setHeaderLabels(["Categories"])
1002                 self._categories.setHeaderHidden(True)
1003                 if not IS_MAEMO:
1004                         self._categories.setAlternatingRowColors(True)
1005                 self._categories.setSelectionBehavior(QtGui.QAbstractItemView.SelectRows)
1006                 self._categories.setSelectionMode(QtGui.QAbstractItemView.MultiSelection)
1007                 self._childWidgets = []
1008                 for catName in self._source:
1009                         twi = QtGui.QTreeWidgetItem(self._categories)
1010                         twi.setText(0, catName)
1011                         self._childWidgets.append(twi)
1012                         if catName not in self._hidden:
1013                                 self._categories.setItemSelected(twi, True)
1014                 self._selection = self._categories.selectionModel()
1015                 self._selection.selectionChanged.connect(self._on_selection_changed)
1016
1017                 self._allButton = QtGui.QPushButton("All")
1018                 self._allButton.clicked.connect(self._on_select_all)
1019                 self._invertButton = QtGui.QPushButton("Invert")
1020                 self._invertButton.clicked.connect(self._on_invert_selection)
1021                 self._noneButton = QtGui.QPushButton("None")
1022                 self._noneButton.clicked.connect(self._on_select_none)
1023
1024                 self._buttonLayout = QtGui.QHBoxLayout()
1025                 self._buttonLayout.addWidget(self._allButton)
1026                 self._buttonLayout.addWidget(self._invertButton)
1027                 self._buttonLayout.addWidget(self._noneButton)
1028
1029                 self._layout = QtGui.QVBoxLayout()
1030                 self._layout.addWidget(self._categories)
1031                 self._layout.addLayout(self._buttonLayout)
1032
1033                 centralWidget = QtGui.QWidget()
1034                 centralWidget.setLayout(self._layout)
1035
1036                 self._window = QtGui.QMainWindow(parent)
1037                 self._window.setAttribute(QtCore.Qt.WA_DeleteOnClose, True)
1038                 maeqt.set_autorient(self._window, True)
1039                 maeqt.set_stackable(self._window, True)
1040                 self._window.setWindowTitle("%s - Favorites" % constants.__pretty_app_name__)
1041                 self._window.setWindowIcon(QtGui.QIcon(self._app.appIconPath))
1042                 self._window.setCentralWidget(centralWidget)
1043
1044                 self._closeWindowAction = QtGui.QAction(None)
1045                 self._closeWindowAction.setText("Close")
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                 else:
1054                         fileMenu = self._window.menuBar().addMenu("&Units")
1055                         fileMenu.addAction(self._closeWindowAction)
1056                         fileMenu.addAction(self._app.quitAction)
1057
1058                         viewMenu = self._window.menuBar().addMenu("&View")
1059                         viewMenu.addAction(self._app.fullscreenAction)
1060
1061                 self._window.addAction(self._app.logAction)
1062
1063                 self.set_fullscreen(self._app.fullscreenAction.isChecked())
1064                 self._window.show()
1065
1066         @property
1067         def window(self):
1068                 return self._window
1069
1070         def show(self):
1071                 self._window.show()
1072
1073         def hide(self):
1074                 self._window.hide()
1075
1076         def close(self):
1077                 self._window.close()
1078
1079         def set_fullscreen(self, isFullscreen):
1080                 if isFullscreen:
1081                         self._window.showFullScreen()
1082                 else:
1083                         self._window.showNormal()
1084
1085         @misc_utils.log_exception(_moduleLogger)
1086         def _on_select_all(self, checked = False):
1087                 for child in self._childWidgets:
1088                         self._categories.setItemSelected(child, True)
1089
1090         @misc_utils.log_exception(_moduleLogger)
1091         def _on_invert_selection(self, checked = False):
1092                 for child in self._childWidgets:
1093                         isSelected = self._categories.isItemSelected(child)
1094                         self._categories.setItemSelected(child, not isSelected)
1095
1096         @misc_utils.log_exception(_moduleLogger)
1097         def _on_select_none(self, checked = False):
1098                 for child in self._childWidgets:
1099                         self._categories.setItemSelected(child, False)
1100
1101         @misc_utils.log_exception(_moduleLogger)
1102         def _on_selection_changed(self, selected, deselected):
1103                 self._hidden.clear()
1104                 selectedNames = set(
1105                         str(item.text(0))
1106                         for item in self._categories.selectedItems()
1107                 )
1108                 for name in self._source:
1109                         if name not in selectedNames:
1110                                 self._hidden.add(name)
1111
1112         @misc_utils.log_exception(_moduleLogger)
1113         def _on_close_window(self, checked = True):
1114                 self.close()
1115
1116
1117 class CategoryWindow(object):
1118
1119         def __init__(self, parent, app):
1120                 self._app = app
1121                 self._unitWindow = None
1122                 self._favoritesWindow = None
1123
1124                 self._categories = QtGui.QTreeWidget()
1125                 self._categories.setHeaderLabels(["Categories"])
1126                 self._categories.itemClicked.connect(self._on_category_clicked)
1127                 self._categories.setHeaderHidden(True)
1128                 self._categories.setSelectionBehavior(QtGui.QAbstractItemView.SelectRows)
1129                 self._categories.setSelectionMode(QtGui.QAbstractItemView.SingleSelection)
1130                 if not IS_MAEMO:
1131                         self._categories.setAlternatingRowColors(True)
1132                 for catName in unit_data.UNIT_CATEGORIES:
1133                         twi = QtGui.QTreeWidgetItem(self._categories)
1134                         twi.setText(0, catName)
1135
1136                 self._layout = QtGui.QVBoxLayout()
1137                 self._layout.addWidget(self._categories)
1138
1139                 centralWidget = QtGui.QWidget()
1140                 centralWidget.setLayout(self._layout)
1141
1142                 self._window = QtGui.QMainWindow(parent)
1143                 self._window.setAttribute(QtCore.Qt.WA_DeleteOnClose, True)
1144                 maeqt.set_autorient(self._window, True)
1145                 maeqt.set_stackable(self._window, True)
1146                 self._window.setWindowTitle("%s - Categories" % constants.__pretty_app_name__)
1147                 self._window.setWindowIcon(QtGui.QIcon(self._app.appIconPath))
1148                 self._window.setCentralWidget(centralWidget)
1149
1150                 self._chooseFavoritesAction = QtGui.QAction(None)
1151                 self._chooseFavoritesAction.setText("Select Favorites")
1152                 self._chooseFavoritesAction.setShortcut(QtGui.QKeySequence("CTRL+f"))
1153                 self._chooseFavoritesAction.triggered.connect(self._on_choose_favorites)
1154
1155                 self._app.showFavoritesAction.toggled.connect(self._on_show_favorites)
1156
1157                 self._closeWindowAction = QtGui.QAction(None)
1158                 self._closeWindowAction.setText("Close")
1159                 self._closeWindowAction.setShortcut(QtGui.QKeySequence("CTRL+w"))
1160                 self._closeWindowAction.triggered.connect(self._on_close_window)
1161
1162                 if IS_MAEMO:
1163                         fileMenu = self._window.menuBar().addMenu("&Units")
1164                         fileMenu.addAction(self._chooseFavoritesAction)
1165
1166                         viewMenu = self._window.menuBar().addMenu("&View")
1167                         viewMenu.addAction(self._app.showFavoritesAction)
1168                         viewMenu.addAction(self._app.condensedAction)
1169                         viewMenu.addSeparator()
1170                         viewMenu.addAction(self._app.jumpAction)
1171                         viewMenu.addAction(self._app.recentAction)
1172
1173                         self._window.addAction(self._closeWindowAction)
1174                         self._window.addAction(self._app.quitAction)
1175                         self._window.addAction(self._app.fullscreenAction)
1176                 else:
1177                         fileMenu = self._window.menuBar().addMenu("&Units")
1178                         fileMenu.addAction(self._chooseFavoritesAction)
1179                         fileMenu.addAction(self._closeWindowAction)
1180                         fileMenu.addAction(self._app.quitAction)
1181
1182                         viewMenu = self._window.menuBar().addMenu("&View")
1183                         viewMenu.addAction(self._app.showFavoritesAction)
1184                         viewMenu.addAction(self._app.condensedAction)
1185                         viewMenu.addSeparator()
1186                         viewMenu.addAction(self._app.jumpAction)
1187                         viewMenu.addAction(self._app.recentAction)
1188                         viewMenu.addSeparator()
1189                         viewMenu.addAction(self._app.fullscreenAction)
1190
1191                 self._window.addAction(self._app.logAction)
1192
1193                 self._update_favorites()
1194                 self.set_fullscreen(self._app.fullscreenAction.isChecked())
1195                 self._window.show()
1196
1197         @property
1198         def window(self):
1199                 return self._window
1200
1201         def walk_children(self):
1202                 if self._unitWindow is not None:
1203                         yield self._unitWindow
1204                 if self._favoritesWindow is not None:
1205                         yield self._favoritesWindow
1206
1207         def show(self):
1208                 self._window.show()
1209                 for child in self.walk_children():
1210                         child.show()
1211
1212         def hide(self):
1213                 for child in self.walk_children():
1214                         child.hide()
1215                 self._window.hide()
1216
1217         def close(self):
1218                 for child in self.walk_children():
1219                         child.window.destroyed.disconnect(self._on_child_close)
1220                         child.close()
1221                 self._window.close()
1222
1223         def select_category(self, categoryName):
1224                 for child in self.walk_children():
1225                         child.window.destroyed.disconnect(self._on_child_close)
1226                         child.close()
1227                 self._unitWindow = UnitWindow(self._window, categoryName, self._app)
1228                 self._unitWindow.window.destroyed.connect(self._on_child_close)
1229
1230                 i = unit_data.UNIT_CATEGORIES.index(categoryName)
1231                 rootIndex = self._categories.rootIndex()
1232                 currentIndex = self._categories.model().index(i, 0, rootIndex)
1233                 self._categories.scrollTo(currentIndex)
1234                 return self._unitWindow
1235
1236         def set_fullscreen(self, isFullscreen):
1237                 if isFullscreen:
1238                         self._window.showFullScreen()
1239                 else:
1240                         self._window.showNormal()
1241                 for child in self.walk_children():
1242                         child.set_fullscreen(isFullscreen)
1243
1244         def _update_favorites(self):
1245                 if self._app.showFavoritesAction.isChecked():
1246                         assert self._categories.topLevelItemCount() == len(unit_data.UNIT_CATEGORIES)
1247                         for i, catName in enumerate(unit_data.UNIT_CATEGORIES):
1248                                 if catName in self._app.hiddenCategories:
1249                                         self._categories.setRowHidden(i, self._categories.rootIndex(), True)
1250                                 else:
1251                                         self._categories.setRowHidden(i, self._categories.rootIndex(), False)
1252                 else:
1253                         for i in xrange(self._categories.topLevelItemCount()):
1254                                 self._categories.setRowHidden(i, self._categories.rootIndex(), False)
1255
1256         @misc_utils.log_exception(_moduleLogger)
1257         def _on_show_favorites(self, checked = True):
1258                 if checked:
1259                         assert self._categories.topLevelItemCount() == len(unit_data.UNIT_CATEGORIES)
1260                         for i, catName in enumerate(unit_data.UNIT_CATEGORIES):
1261                                 if catName in self._app.hiddenCategories:
1262                                         self._categories.setRowHidden(i, self._categories.rootIndex(), True)
1263                 else:
1264                         for i in xrange(self._categories.topLevelItemCount()):
1265                                 self._categories.setRowHidden(i, self._categories.rootIndex(), False)
1266
1267         @misc_utils.log_exception(_moduleLogger)
1268         def _on_choose_favorites(self, obj = None):
1269                 assert self._favoritesWindow is None
1270                 self._favoritesWindow = FavoritesWindow(
1271                         self._window,
1272                         self._app,
1273                         unit_data.UNIT_CATEGORIES,
1274                         self._app.hiddenCategories
1275                 )
1276                 self._favoritesWindow.window.destroyed.connect(self._on_close_favorites)
1277                 return self._favoritesWindow
1278
1279         @misc_utils.log_exception(_moduleLogger)
1280         def _on_close_favorites(self, obj = None):
1281                 self._favoritesWindow = None
1282                 self._update_favorites()
1283
1284         @misc_utils.log_exception(_moduleLogger)
1285         def _on_child_close(self, obj = None):
1286                 self._unitWindow = None
1287
1288         @misc_utils.log_exception(_moduleLogger)
1289         def _on_close_window(self, checked = True):
1290                 self.close()
1291
1292         @misc_utils.log_exception(_moduleLogger)
1293         def _on_category_clicked(self, item, columnIndex):
1294                 categoryName = unicode(item.text(0))
1295                 self.select_category(categoryName)
1296
1297
1298 class UnitData(object):
1299
1300         HEADERS = ["Name", "Value", "", "Unit"]
1301         ALIGNMENT = [QtCore.Qt.AlignLeft, QtCore.Qt.AlignRight, QtCore.Qt.AlignLeft, QtCore.Qt.AlignLeft]
1302         NAME_COLUMN = 0
1303         VALUE_COLUMN_0 = 1
1304         VALUE_COLUMN_1 = 2
1305         UNIT_COLUMN = 3
1306
1307         def __init__(self, name, unit, description, conversion):
1308                 self._name = name
1309                 self._unit = unit
1310                 self._description = description
1311                 self._conversion = conversion
1312
1313                 self._value = 0.0
1314                 self._integerDisplay, self._fractionalDisplay = split_number(self._value)
1315
1316         @property
1317         def name(self):
1318                 return self._name
1319
1320         @property
1321         def value(self):
1322                 return self._value
1323
1324         def update_value(self, newValue):
1325                 self._value = newValue
1326                 self._integerDisplay, self._fractionalDisplay = split_number(newValue)
1327
1328         @property
1329         def unit(self):
1330                 return self._unit
1331
1332         @property
1333         def conversion(self):
1334                 return self._conversion
1335
1336         def data(self, column):
1337                 try:
1338                         return [self._name, self._integerDisplay, self._fractionalDisplay, self._unit][column]
1339                 except IndexError:
1340                         return None
1341
1342
1343 class UnitModel(QtCore.QAbstractItemModel):
1344
1345         def __init__(self, categoryName, parent=None):
1346                 super(UnitModel, self).__init__(parent)
1347                 self._categoryName = categoryName
1348                 self._unitData = unit_data.UNIT_DESCRIPTIONS[self._categoryName]
1349
1350                 self._children = []
1351                 for key in unit_data.get_units(self._categoryName):
1352                         conversion, unit, description = self._unitData[key]
1353                         self._children.append(UnitData(key, unit, description, conversion))
1354                 self._sortSettings = None
1355
1356         @misc_utils.log_exception(_moduleLogger)
1357         def columnCount(self, parent):
1358                 if parent.isValid():
1359                         return 0
1360                 else:
1361                         return len(UnitData.HEADERS)
1362
1363         @misc_utils.log_exception(_moduleLogger)
1364         def data(self, index, role):
1365                 if not index.isValid():
1366                         return None
1367                 elif role == QtCore.Qt.TextAlignmentRole:
1368                         return UnitData.ALIGNMENT[index.column()]
1369                 elif role != QtCore.Qt.DisplayRole:
1370                         return None
1371
1372                 item = index.internalPointer()
1373                 if isinstance(item, UnitData):
1374                         return item.data(index.column())
1375                 elif item is UnitData.HEADERS:
1376                         return item[index.column()]
1377
1378         @misc_utils.log_exception(_moduleLogger)
1379         def sort(self, column, order = QtCore.Qt.AscendingOrder):
1380                 self._sortSettings = column, order
1381                 isReverse = order == QtCore.Qt.AscendingOrder
1382                 if column == UnitData.NAME_COLUMN:
1383                         key_func = lambda item: item.name
1384                 elif column in [UnitData.VALUE_COLUMN_0, UnitData.VALUE_COLUMN_1]:
1385                         key_func = lambda item: item.value
1386                 elif column == UnitData.UNIT_COLUMN:
1387                         key_func = lambda item: item.unit
1388                 self._children.sort(key=key_func, reverse = isReverse)
1389
1390                 self._all_changed()
1391
1392         @misc_utils.log_exception(_moduleLogger)
1393         def flags(self, index):
1394                 if not index.isValid():
1395                         return QtCore.Qt.NoItemFlags
1396
1397                 return QtCore.Qt.ItemIsEnabled | QtCore.Qt.ItemIsSelectable
1398
1399         @misc_utils.log_exception(_moduleLogger)
1400         def headerData(self, section, orientation, role):
1401                 if orientation == QtCore.Qt.Horizontal and role == QtCore.Qt.DisplayRole:
1402                         return UnitData.HEADERS[section]
1403
1404                 return None
1405
1406         @misc_utils.log_exception(_moduleLogger)
1407         def index(self, row, column, parent):
1408                 if not self.hasIndex(row, column, parent):
1409                         return QtCore.QModelIndex()
1410
1411                 if parent.isValid():
1412                         return QtCore.QModelIndex()
1413
1414                 parentItem = UnitData.HEADERS
1415                 childItem = self._children[row]
1416                 if childItem:
1417                         return self.createIndex(row, column, childItem)
1418                 else:
1419                         return QtCore.QModelIndex()
1420
1421         @misc_utils.log_exception(_moduleLogger)
1422         def parent(self, index):
1423                 if not index.isValid():
1424                         return QtCore.QModelIndex()
1425
1426                 childItem = index.internalPointer()
1427                 if isinstance(childItem, UnitData):
1428                         return QtCore.QModelIndex()
1429                 elif childItem is UnitData.HEADERS:
1430                         return None
1431
1432         @misc_utils.log_exception(_moduleLogger)
1433         def rowCount(self, parent):
1434                 if 0 < parent.column():
1435                         return 0
1436
1437                 if not parent.isValid():
1438                         return len(self._children)
1439                 else:
1440                         return len(self._children)
1441
1442         def get_unit(self, index):
1443                 assert 0 <= index
1444                 return self._children[index]
1445
1446         def get_unit_names(self):
1447                 for child in self._children:
1448                         yield child.name
1449
1450         def index_unit(self, unitName):
1451                 for i, child in enumerate(self._children):
1452                         if child.name == unitName:
1453                                 return i
1454                 else:
1455                         raise RuntimeError("Unit not found")
1456
1457         def update_values(self, fromIndex, userInput):
1458                 value = self._sanitize_value(userInput)
1459                 func, arg = self._children[fromIndex].conversion
1460                 base = func.to_base(value, arg)
1461                 for i, child in enumerate(self._children):
1462                         if i == fromIndex:
1463                                 continue
1464                         func, arg = child.conversion
1465                         newValue = func.from_base(base, arg)
1466                         child.update_value(newValue)
1467
1468                 if (
1469                         self._sortSettings is not None and
1470                         self._sortSettings[0]  in [UnitData.VALUE_COLUMN_0, UnitData.VALUE_COLUMN_1]
1471                 ):
1472                         # Sort takes care of marking everything as changed
1473                         self.sort(*self._sortSettings)
1474                 else:
1475                         self._values_changed()
1476
1477         def __len__(self):
1478                 return len(self._children)
1479
1480         def _values_changed(self):
1481                 topLeft = self.createIndex(0, UnitData.VALUE_COLUMN_0, self._children[0])
1482                 bottomRight = self.createIndex(len(self._children)-1, UnitData.VALUE_COLUMN_1, self._children[-1])
1483                 self.dataChanged.emit(topLeft, bottomRight)
1484
1485         def _all_changed(self):
1486                 topLeft = self.createIndex(0, 0, self._children[0])
1487                 bottomRight = self.createIndex(len(self._children)-1, len(UnitData.HEADERS)-1, self._children[-1])
1488                 self.dataChanged.emit(topLeft, bottomRight)
1489
1490         def _sanitize_value(self, userEntry):
1491                 if self._categoryName == "Computer Numbers":
1492                         if userEntry == '':
1493                                 value = '0'
1494                         else:
1495                                 value = userEntry
1496                 else:
1497                         if userEntry == '':
1498                                 value = 0.0
1499                         else:
1500                                 value = float(userEntry)
1501                 return value
1502
1503
1504 class UnitWindow(object):
1505
1506         def __init__(self, parent, category, app):
1507                 self._app = app
1508                 self._categoryName = category
1509                 self._selectedIndex = 0
1510                 self._favoritesWindow = None
1511
1512                 self._selectedUnitName = QtGui.QLabel()
1513                 self._selectedUnitValue = QtGui.QLineEdit()
1514                 self._selectedUnitValue.textEdited.connect(self._on_value_edited)
1515                 maeqt.mark_numbers_preferred(self._selectedUnitValue)
1516                 self._selectedUnitSymbol = QtGui.QLabel()
1517
1518                 self._selectedUnitLayout = QtGui.QHBoxLayout()
1519                 self._selectedUnitLayout.addWidget(self._selectedUnitName)
1520                 self._selectedUnitLayout.addWidget(self._selectedUnitValue)
1521                 self._selectedUnitLayout.addWidget(self._selectedUnitSymbol)
1522
1523                 self._unitsModel = UnitModel(self._categoryName)
1524                 self._unitsView = QtGui.QTreeView()
1525                 self._unitsView.setModel(self._unitsModel)
1526                 self._unitsView.clicked.connect(self._on_unit_clicked)
1527                 self._unitsView.setUniformRowHeights(True)
1528                 self._unitsView.setSortingEnabled(True)
1529                 self._unitsView.setTextElideMode(QtCore.Qt.ElideNone)
1530                 self._unitsView.setHorizontalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
1531                 self._unitsView.setSelectionBehavior(QtGui.QAbstractItemView.SelectRows)
1532                 self._unitsView.setSelectionMode(QtGui.QAbstractItemView.SingleSelection)
1533                 if not IS_MAEMO:
1534                         self._unitsView.setAlternatingRowColors(True)
1535                 if True:
1536                         self._unitsView.setHeaderHidden(True)
1537
1538                 viewHeader = self._unitsView.header()
1539                 viewHeader.setSortIndicatorShown(True)
1540                 viewHeader.setClickable(True)
1541
1542                 viewHeader.setResizeMode(UnitData.NAME_COLUMN, QtGui.QHeaderView.ResizeToContents)
1543                 viewHeader.setResizeMode(UnitData.VALUE_COLUMN_0, QtGui.QHeaderView.ResizeToContents)
1544                 viewHeader.setResizeMode(UnitData.VALUE_COLUMN_1, QtGui.QHeaderView.ResizeToContents)
1545                 viewHeader.setResizeMode(UnitData.UNIT_COLUMN, QtGui.QHeaderView.ResizeToContents)
1546                 viewHeader.setStretchLastSection(False)
1547
1548                 # Trying to make things faster by locking in the initial size of the immutable columns
1549                 nameSize = min(viewHeader.sectionSize(UnitData.NAME_COLUMN), 125)
1550                 viewHeader.setResizeMode(UnitData.NAME_COLUMN, QtGui.QHeaderView.Fixed)
1551                 viewHeader.resizeSection(UnitData.NAME_COLUMN, nameSize)
1552                 unitSize = min(viewHeader.sectionSize(UnitData.UNIT_COLUMN), 125)
1553                 viewHeader.setResizeMode(UnitData.UNIT_COLUMN, QtGui.QHeaderView.Fixed)
1554                 viewHeader.resizeSection(UnitData.UNIT_COLUMN, unitSize)
1555
1556                 self._layout = QtGui.QVBoxLayout()
1557                 self._layout.addLayout(self._selectedUnitLayout)
1558                 self._layout.addWidget(self._unitsView)
1559
1560                 centralWidget = QtGui.QWidget()
1561                 centralWidget.setLayout(self._layout)
1562
1563                 self._window = QtGui.QMainWindow(parent)
1564                 self._window.setAttribute(QtCore.Qt.WA_DeleteOnClose, True)
1565                 maeqt.set_autorient(self._window, True)
1566                 maeqt.set_stackable(self._window, True)
1567                 self._window.setWindowTitle("%s - %s" % (constants.__pretty_app_name__, category))
1568                 self._window.setWindowIcon(QtGui.QIcon(app.appIconPath))
1569                 self._window.setCentralWidget(centralWidget)
1570
1571                 defaultUnitName = self._app.get_recent_unit(self._categoryName)
1572                 if defaultUnitName:
1573                         self.select_unit(defaultUnitName)
1574                 else:
1575                         self._select_unit(0)
1576
1577                 if self._app.sortByNameAction.isChecked():
1578                         sortColumn = UnitData.NAME_COLUMN
1579                 elif self._app.sortByValueAction.isChecked():
1580                         sortColumn = UnitData.VALUE_COLUMN_0
1581                 elif self._app.sortByUnitAction.isChecked():
1582                         sortColumn = UnitData.UNIT_COLUMN
1583                 else:
1584                         raise RuntimeError("No sort column selected")
1585                 if sortColumn != 0:
1586                         # By default it sorts by he first column (name)
1587                         self._unitsModel.sort(sortColumn)
1588
1589                 self._chooseFavoritesAction = QtGui.QAction(None)
1590                 self._chooseFavoritesAction.setText("Select Favorites")
1591                 self._chooseFavoritesAction.setShortcut(QtGui.QKeySequence("CTRL+f"))
1592                 self._chooseFavoritesAction.triggered.connect(self._on_choose_favorites)
1593
1594                 self._app.showFavoritesAction.toggled.connect(self._on_show_favorites)
1595
1596                 self._previousUnitAction = QtGui.QAction(None)
1597                 self._previousUnitAction.setText("Previous Unit")
1598                 self._previousUnitAction.setShortcut(QtGui.QKeySequence("Up"))
1599                 self._previousUnitAction.triggered.connect(self._on_previous_unit)
1600
1601                 self._nextUnitAction = QtGui.QAction(None)
1602                 self._nextUnitAction.setText("Next Unit")
1603                 self._nextUnitAction.setShortcut(QtGui.QKeySequence("Down"))
1604                 self._nextUnitAction.triggered.connect(self._on_next_unit)
1605
1606                 self._closeWindowAction = QtGui.QAction(None)
1607                 self._closeWindowAction.setText("Close Window")
1608                 self._closeWindowAction.setShortcut(QtGui.QKeySequence("CTRL+w"))
1609                 self._closeWindowAction.triggered.connect(self._on_close_window)
1610
1611                 if IS_MAEMO:
1612                         self._window.addAction(self._closeWindowAction)
1613                         self._window.addAction(self._app.quitAction)
1614                         self._window.addAction(self._app.fullscreenAction)
1615
1616                         fileMenu = self._window.menuBar().addMenu("&Units")
1617                         fileMenu.addAction(self._chooseFavoritesAction)
1618
1619                         viewMenu = self._window.menuBar().addMenu("&View")
1620                         viewMenu.addAction(self._app.showFavoritesAction)
1621                         viewMenu.addAction(self._app.condensedAction)
1622                         viewMenu.addSeparator()
1623                         viewMenu.addAction(self._app.sortByNameAction)
1624                         viewMenu.addAction(self._app.sortByValueAction)
1625                         viewMenu.addAction(self._app.sortByUnitAction)
1626                         viewMenu.addSeparator()
1627                         viewMenu.addAction(self._app.jumpAction)
1628                         viewMenu.addAction(self._app.recentAction)
1629                 else:
1630                         fileMenu = self._window.menuBar().addMenu("&Units")
1631                         fileMenu.addAction(self._chooseFavoritesAction)
1632                         fileMenu.addAction(self._closeWindowAction)
1633                         fileMenu.addAction(self._app.quitAction)
1634
1635                         viewMenu = self._window.menuBar().addMenu("&View")
1636                         viewMenu.addAction(self._app.showFavoritesAction)
1637                         viewMenu.addAction(self._app.condensedAction)
1638                         viewMenu.addSeparator()
1639                         viewMenu.addAction(self._app.sortByNameAction)
1640                         viewMenu.addAction(self._app.sortByValueAction)
1641                         viewMenu.addAction(self._app.sortByUnitAction)
1642                         viewMenu.addSeparator()
1643                         viewMenu.addAction(self._app.jumpAction)
1644                         viewMenu.addAction(self._app.recentAction)
1645                         viewMenu.addSeparator()
1646                         viewMenu.addAction(self._app.fullscreenAction)
1647
1648                 self._app.sortByNameAction.triggered.connect(self._on_sort_by_name)
1649                 self._app.sortByValueAction.triggered.connect(self._on_sort_by_value)
1650                 self._app.sortByUnitAction.triggered.connect(self._on_sort_by_unit)
1651
1652                 self._window.addAction(self._app.logAction)
1653                 self._window.addAction(self._nextUnitAction)
1654                 self._window.addAction(self._previousUnitAction)
1655                 self._window.addAction(self._chooseFavoritesAction)
1656
1657                 self._update_favorites()
1658                 self.set_fullscreen(self._app.fullscreenAction.isChecked())
1659                 self._window.show()
1660
1661         @property
1662         def window(self):
1663                 return self._window
1664
1665         def show(self):
1666                 for child in self.walk_children():
1667                         child.hide()
1668                 self._window.show()
1669
1670         def hide(self):
1671                 for child in self.walk_children():
1672                         child.hide()
1673                 self._window.hide()
1674
1675         def close(self):
1676                 for child in self.walk_children():
1677                         child.window.destroyed.disconnect(self._on_child_close)
1678                         child.close()
1679                 self._window.close()
1680
1681         def set_fullscreen(self, isFullscreen):
1682                 if isFullscreen:
1683                         self._window.showFullScreen()
1684                 else:
1685                         self._window.showNormal()
1686
1687         def select_unit(self, unitName):
1688                 index = self._unitsModel.index_unit(unitName)
1689                 self._select_unit(index)
1690
1691         def walk_children(self):
1692                 if self._favoritesWindow is not None:
1693                         yield self._favoritesWindow
1694
1695         def _update_favorites(self, force = False):
1696                 if self._app.showFavoritesAction.isChecked():
1697                         unitNames = list(self._unitsModel.get_unit_names())
1698                         for i, unitName in enumerate(unitNames):
1699                                 if unitName in self._app.get_hidden_units(self._categoryName):
1700                                         self._unitsView.setRowHidden(i, self._unitsView.rootIndex(), True)
1701                                 else:
1702                                         self._unitsView.setRowHidden(i, self._unitsView.rootIndex(), False)
1703                 else:
1704                         if force:
1705                                 for i in xrange(len(self._unitsModel)):
1706                                         self._unitsView.setRowHidden(i, self._unitsView.rootIndex(), False)
1707
1708         @misc_utils.log_exception(_moduleLogger)
1709         def _on_show_favorites(self, checked = True):
1710                 if checked:
1711                         unitNames = list(self._unitsModel.get_unit_names())
1712                         for i, unitName in enumerate(unitNames):
1713                                 if unitName in self._app.get_hidden_units(self._categoryName):
1714                                         self._unitsView.setRowHidden(i, self._unitsView.rootIndex(), True)
1715                 else:
1716                         for i in xrange(len(self._unitsModel)):
1717                                 self._unitsView.setRowHidden(i, self._unitsView.rootIndex(), False)
1718
1719         @misc_utils.log_exception(_moduleLogger)
1720         def _on_choose_favorites(self, obj = None):
1721                 assert self._favoritesWindow is None
1722                 self._favoritesWindow = FavoritesWindow(
1723                         self._window,
1724                         self._app,
1725                         unit_data.get_units(self._categoryName),
1726                         self._app.get_hidden_units(self._categoryName)
1727                 )
1728                 self._favoritesWindow.window.destroyed.connect(self._on_close_favorites)
1729                 return self._favoritesWindow
1730
1731         @misc_utils.log_exception(_moduleLogger)
1732         def _on_close_favorites(self, obj = None):
1733                 self._favoritesWindow = None
1734                 self._update_favorites(force=True)
1735
1736         @misc_utils.log_exception(_moduleLogger)
1737         def _on_previous_unit(self, checked = True):
1738                 self._select_unit(self._selectedIndex - 1)
1739
1740         @misc_utils.log_exception(_moduleLogger)
1741         def _on_next_unit(self, checked = True):
1742                 self._select_unit(self._selectedIndex + 1)
1743
1744         @misc_utils.log_exception(_moduleLogger)
1745         def _on_close_window(self, checked = True):
1746                 self.close()
1747
1748         @misc_utils.log_exception(_moduleLogger)
1749         def _on_sort_by_name(self, checked = False):
1750                 self._unitsModel.sort(UnitData.NAME_COLUMN, QtCore.Qt.DescendingOrder)
1751
1752         @misc_utils.log_exception(_moduleLogger)
1753         def _on_sort_by_value(self, checked = False):
1754                 self._unitsModel.sort(UnitData.VALUE_COLUMN_0)
1755
1756         @misc_utils.log_exception(_moduleLogger)
1757         def _on_sort_by_unit(self, checked = False):
1758                 self._unitsModel.sort(UnitData.UNIT_COLUMN, QtCore.Qt.DescendingOrder)
1759
1760         @misc_utils.log_exception(_moduleLogger)
1761         def _on_unit_clicked(self, index):
1762                 self._select_unit(index.row())
1763
1764         @misc_utils.log_exception(_moduleLogger)
1765         def _on_value_edited(self, *args):
1766                 userInput = self._selectedUnitValue.text()
1767                 self._unitsModel.update_values(self._selectedIndex, str(userInput))
1768                 self._update_favorites()
1769
1770         def _select_unit(self, index):
1771                 unit = self._unitsModel.get_unit(index)
1772                 self._selectedUnitName.setText(unit.name)
1773                 self._selectedUnitValue.setText(str(unit.value))
1774                 self._selectedUnitSymbol.setText(unit.unit)
1775
1776                 self._selectedIndex = index
1777                 qindex = self._unitsModel.createIndex(index, 0, self._unitsModel.get_unit(index))
1778                 self._unitsView.scrollTo(qindex)
1779                 self._app.add_recent(self._categoryName, self._unitsModel.get_unit(index).name)
1780
1781
1782 def run_gonvert():
1783         app = QtGui.QApplication([])
1784         handle = Gonvert(app)
1785         return app.exec_()
1786
1787
1788 if __name__ == "__main__":
1789         logging.basicConfig(level = logging.DEBUG)
1790         try:
1791                 os.makedirs(constants._data_path_)
1792         except OSError, e:
1793                 if e.errno != 17:
1794                         raise
1795
1796         val = run_gonvert()
1797         sys.exit(val)