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__), "../data"),
  62                 os.path.join(os.path.dirname(__file__), "../lib"),
  63                 '/usr/share/gonvert',
  64                 '/usr/lib/gonvert',
  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._catWindow = None
  86
  87                 self._jumpAction = QtGui.QAction(None)
  88                 self._jumpAction.setText("Quick Jump")
  89                 self._jumpAction.setStatusTip("Search for a unit and jump straight to it")
  90                 self._jumpAction.setToolTip("Search for a unit and jump straight to it")
  91                 self._jumpAction.setShortcut(QtGui.QKeySequence("CTRL+j"))
  92                 self._jumpAction.triggered.connect(self._on_jump_start)
  93
  94                 self._recentAction = QtGui.QAction(None)
  95                 self._recentAction.setText("Recent Units")
  96                 self._recentAction.setStatusTip("View the recent units")
  97                 self._recentAction.setToolTip("View the recent units")
  98                 self._recentAction.setShortcut(QtGui.QKeySequence("CTRL+r"))
  99                 self._recentAction.triggered.connect(self._on_recent_start)
 100
 101                 self._fullscreenAction = QtGui.QAction(None)
 102                 self._fullscreenAction.setText("Fullscreen")
 103                 self._fullscreenAction.setCheckable(True)
 104                 self._fullscreenAction.setShortcut(QtGui.QKeySequence("CTRL+Enter"))
 105                 self._fullscreenAction.toggled.connect(self._on_toggle_fullscreen)
 106
 107                 self._showFavoritesAction = QtGui.QAction(None)
 108                 self._showFavoritesAction.setCheckable(True)
 109                 self._showFavoritesAction.setText("Favorites Only")
 110
 111                 self._logAction = QtGui.QAction(None)
 112                 self._logAction.setText("Log")
 113                 self._logAction.setShortcut(QtGui.QKeySequence("CTRL+l"))
 114                 self._logAction.triggered.connect(self._on_log)
 115
 116                 self._quitAction = QtGui.QAction(None)
 117                 self._quitAction.setText("Quit")
 118                 self._quitAction.setShortcut(QtGui.QKeySequence("CTRL+q"))
 119                 self._quitAction.triggered.connect(self._on_quit)
 120
 121                 self._app.lastWindowClosed.connect(self._on_app_quit)
 122                 self.request_category()
 123                 self.load_settings()
 124
 125         def request_category(self):
 126                 if self._catWindow is not None:
 127                         self._catWindow.close()
 128                         self._catWindow = None
 129                 self._catWindow = CategoryWindow(None, self)
 130                 self._catWindow.window.destroyed.connect(lambda obj = None: self._on_child_close("_catWindow", obj))
 131                 return self._catWindow
 132
 133         def search_units(self):
 134                 if self._jumpWindow is not None:
 135                         self._jumpWindow.close()
 136                         self._jumpWindow = None
 137                 self._jumpWindow = QuickJump(None, self)
 138                 self._jumpWindow.window.destroyed.connect(lambda obj = None: self._on_child_close("_jumpWindow", obj))
 139                 return self._jumpWindow
 140
 141         def show_recent(self):
 142                 if self._recentWindow is not None:
 143                         self._recentWindow.close()
 144                         self._recentWindow = None
 145                 self._recentWindow = Recent(None, self)
 146                 self._recentWindow.window.destroyed.connect(lambda obj = None: self._on_child_close("_recentWindow", obj))
 147                 return self._recentWindow
 148
 149         def add_recent(self, categoryName, unitName):
 150                 catUnit = categoryName, unitName
 151                 try:
 152                         self._recent.remove(catUnit)
 153                 except ValueError:
 154                         pass # ignore if its not already in the recent history
 155                 assert catUnit not in self._recent
 156                 self._recent.append(catUnit)
 157
 158         def get_recent_unit(self, categoryName):
 159                 for catName, unitName in reversed(self._recent):
 160                         if catName == categoryName:
 161                                 return unitName
 162                 else:
 163                         return ""
 164
 165         def get_recent(self):
 166                 return reversed(self._recent)
 167
 168         @property
 169         def hiddenCategories(self):
 170                 return self._hiddenCategories
 171
 172         def get_hidden_units(self, categoryName):
 173                 try:
 174                         return self._hiddenUnits[categoryName]
 175                 except KeyError:
 176                         self._hiddenUnits[categoryName] = set()
 177                         return self._hiddenUnits[categoryName]
 178
 179         def load_settings(self):
 180                 try:
 181                         with open(constants._user_settings_, "r") as settingsFile:
 182                                 settings = simplejson.load(settingsFile)
 183                 except IOError, e:
 184                         _moduleLogger.info("No settings")
 185                         settings = {}
 186                 except ValueError:
 187                         _moduleLogger.info("Settings were corrupt")
 188                         settings = {}
 189
 190                 self._fullscreenAction.setChecked(settings.get("isFullScreen", False))
 191
 192                 recent = settings.get("recent", self._recent)
 193                 for category, unit in recent:
 194                         self.add_recent(category, unit)
 195
 196                 self._hiddenCategories = set(settings.get("hiddenCategories", set()))
 197                 self._hiddenUnits = dict(
 198                         (catName, set(units))
 199                         for (catName, units) in settings.get("hiddenUnits", {}).iteritems()
 200                 )
 201
 202                 self._showFavoritesAction.setChecked(settings.get("showFavorites", True))
 203
 204                 if self._recent:
 205                         self._catWindow.select_category(self._recent[-1][0])
 206
 207         def save_settings(self):
 208                 settings = {
 209                         "isFullScreen": self._fullscreenAction.isChecked(),
 210                         "recent": self._recent,
 211                         "hiddenCategories": list(self._hiddenCategories),
 212                         "hiddenUnits": dict(
 213                                 (catName, list(units))
 214                                 for (catName, units) in self._hiddenUnits.iteritems()
 215                         ),
 216                         "showFavorites": self._showFavoritesAction.isChecked(),
 217                 }
 218                 with open(constants._user_settings_, "w") as settingsFile:
 219                         simplejson.dump(settings, settingsFile)
 220
 221         @property
 222         def appIconPath(self):
 223                 return self._appIconPath
 224
 225         @property
 226         def jumpAction(self):
 227                 return self._jumpAction
 228
 229         @property
 230         def recentAction(self):
 231                 return self._recentAction
 232
 233         @property
 234         def fullscreenAction(self):
 235                 return self._fullscreenAction
 236
 237         @property
 238         def logAction(self):
 239                 return self._logAction
 240
 241         @property
 242         def quitAction(self):
 243                 return self._quitAction
 244
 245         @property
 246         def showFavoritesAction(self):
 247                 return self._showFavoritesAction
 248
 249         def _walk_children(self):
 250                 if self._catWindow is not None:
 251                         yield self._catWindow
 252                 if self._jumpWindow is not None:
 253                         yield self._jumpWindow
 254                 if self._recentWindow is not None:
 255                         yield self._recentWindow
 256
 257         @misc_utils.log_exception(_moduleLogger)
 258         def _on_app_quit(self, checked = False):
 259                 self.save_settings()
 260
 261         @misc_utils.log_exception(_moduleLogger)
 262         def _on_child_close(self, name, obj = None):
 263                 if not hasattr(self, name):
 264                         _moduleLogger.info("Something weird going on when we don't have a %s" % name)
 265                         return
 266                 setattr(self, name, None)
 267
 268         @misc_utils.log_exception(_moduleLogger)
 269         def _on_toggle_fullscreen(self, checked = False):
 270                 for window in self._walk_children():
 271                         window.set_fullscreen(checked)
 272
 273         @misc_utils.log_exception(_moduleLogger)
 274         def _on_jump_start(self, checked = False):
 275                 self.search_units()
 276
 277         @misc_utils.log_exception(_moduleLogger)
 278         def _on_recent_start(self, checked = False):
 279                 self.show_recent()
 280
 281         @misc_utils.log_exception(_moduleLogger)
 282         def _on_log(self, checked = False):
 283                 with open(constants._user_logpath_, "r") as f:
 284                         logLines = f.xreadlines()
 285                         log = "".join(logLines)
 286                         self._clipboard.setText(log)
 287
 288         @misc_utils.log_exception(_moduleLogger)
 289         def _on_quit(self, checked = False):
 290                 for window in self._walk_children():
 291                         window.close()
 292
 293
 294 class QuickJump(object):
 295
 296         MINIMAL_ENTRY = 3
 297
 298         def __init__(self, parent, app):
 299                 self._app = app
 300
 301                 self._searchLabel = QtGui.QLabel("Search:")
 302                 self._searchEntry = QtGui.QLineEdit("")
 303                 self._searchEntry.textEdited.connect(self._on_search_edited)
 304
 305                 self._entryLayout = QtGui.QHBoxLayout()
 306                 self._entryLayout.addWidget(self._searchLabel)
 307                 self._entryLayout.addWidget(self._searchEntry)
 308
 309                 self._resultsBox = QtGui.QTreeWidget()
 310                 self._resultsBox.setHeaderLabels(["Categories", "Units"])
 311                 self._resultsBox.setHeaderHidden(True)
 312                 if not IS_MAEMO:
 313                         self._resultsBox.setAlternatingRowColors(True)
 314                 self._resultsBox.itemClicked.connect(self._on_result_clicked)
 315
 316                 self._layout = QtGui.QVBoxLayout()
 317                 self._layout.addLayout(self._entryLayout)
 318                 self._layout.addWidget(self._resultsBox)
 319
 320                 centralWidget = QtGui.QWidget()
 321                 centralWidget.setLayout(self._layout)
 322
 323                 self._window = QtGui.QMainWindow(parent)
 324                 self._window.setAttribute(QtCore.Qt.WA_DeleteOnClose, True)
 325                 maeqt.set_autorient(self._window, True)
 326                 maeqt.set_stackable(self._window, True)
 327                 if parent is not None:
 328                         self._window.setWindowModality(QtCore.Qt.WindowModal)
 329                 self._window.setWindowTitle("%s - Quick Jump" % constants.__pretty_app_name__)
 330                 self._window.setWindowIcon(QtGui.QIcon(self._app.appIconPath))
 331                 self._window.setCentralWidget(centralWidget)
 332
 333                 self._closeWindowAction = QtGui.QAction(None)
 334                 self._closeWindowAction.setText("Close")
 335                 self._closeWindowAction.setShortcut(QtGui.QKeySequence("CTRL+w"))
 336                 self._closeWindowAction.triggered.connect(self._on_close_window)
 337
 338                 if IS_MAEMO:
 339                         self._window.addAction(self._closeWindowAction)
 340                         self._window.addAction(self._app.quitAction)
 341                         self._window.addAction(self._app.fullscreenAction)
 342                 else:
 343                         fileMenu = self._window.menuBar().addMenu("&Units")
 344                         fileMenu.addAction(self._closeWindowAction)
 345                         fileMenu.addAction(self._app.quitAction)
 346
 347                         viewMenu = self._window.menuBar().addMenu("&View")
 348                         viewMenu.addAction(self._app.fullscreenAction)
 349
 350                 self._window.addAction(self._app.logAction)
 351
 352                 self.set_fullscreen(self._app.fullscreenAction.isChecked())
 353                 self._window.show()
 354
 355         @property
 356         def window(self):
 357                 return self._window
 358
 359         def close(self):
 360                 self._window.close()
 361
 362         def set_fullscreen(self, isFullscreen):
 363                 if isFullscreen:
 364                         self._window.showFullScreen()
 365                 else:
 366                         self._window.showNormal()
 367
 368         @misc_utils.log_exception(_moduleLogger)
 369         def _on_close_window(self, checked = True):
 370                 self.close()
 371
 372         @misc_utils.log_exception(_moduleLogger)
 373         def _on_result_clicked(self, item, columnIndex):
 374                 categoryName = unicode(item.text(0))
 375                 unitName = unicode(item.text(1))
 376                 catWindow = self._app.request_category()
 377                 unitsWindow = catWindow.select_category(categoryName)
 378                 unitsWindow.select_unit(unitName)
 379                 self.close()
 380
 381         @misc_utils.log_exception(_moduleLogger)
 382         def _on_search_edited(self, *args):
 383                 userInput = self._searchEntry.text()
 384                 if len(userInput) <  self.MINIMAL_ENTRY:
 385                         return
 386
 387                 self._resultsBox.clear()
 388                 lowerInput = str(userInput).lower()
 389                 for catIndex, category in enumerate(unit_data.UNIT_CATEGORIES):
 390                         units = unit_data.get_units(category)
 391                         for unitIndex, unit in enumerate(units):
 392                                 loweredUnit = unit.lower()
 393                                 if lowerInput in loweredUnit:
 394                                         twi = QtGui.QTreeWidgetItem(self._resultsBox)
 395                                         twi.setText(0, category)
 396                                         twi.setText(1, unit)
 397
 398
 399 class Recent(object):
 400
 401         def __init__(self, parent, app):
 402                 self._app = app
 403
 404                 self._resultsBox = QtGui.QTreeWidget()
 405                 self._resultsBox.setHeaderLabels(["Categories", "Units"])
 406                 self._resultsBox.setHeaderHidden(True)
 407                 if not IS_MAEMO:
 408                         self._resultsBox.setAlternatingRowColors(True)
 409                 self._resultsBox.itemClicked.connect(self._on_result_clicked)
 410
 411                 self._layout = QtGui.QVBoxLayout()
 412                 self._layout.addWidget(self._resultsBox)
 413
 414                 centralWidget = QtGui.QWidget()
 415                 centralWidget.setLayout(self._layout)
 416
 417                 self._window = QtGui.QMainWindow(parent)
 418                 self._window.setAttribute(QtCore.Qt.WA_DeleteOnClose, True)
 419                 maeqt.set_autorient(self._window, True)
 420                 maeqt.set_stackable(self._window, True)
 421                 if parent is not None:
 422                         self._window.setWindowModality(QtCore.Qt.WindowModal)
 423                 self._window.setWindowTitle("%s - Recent" % constants.__pretty_app_name__)
 424                 self._window.setWindowIcon(QtGui.QIcon(self._app.appIconPath))
 425                 self._window.setCentralWidget(centralWidget)
 426
 427                 for cat, unit in self._app.get_recent():
 428                         twi = QtGui.QTreeWidgetItem(self._resultsBox)
 429                         twi.setText(0, cat)
 430                         twi.setText(1, unit)
 431
 432                 self._closeWindowAction = QtGui.QAction(None)
 433                 self._closeWindowAction.setText("Close")
 434                 self._closeWindowAction.setShortcut(QtGui.QKeySequence("CTRL+w"))
 435                 self._closeWindowAction.triggered.connect(self._on_close_window)
 436
 437                 if IS_MAEMO:
 438                         self._window.addAction(self._closeWindowAction)
 439                         self._window.addAction(self._app.quitAction)
 440                         self._window.addAction(self._app.fullscreenAction)
 441                 else:
 442                         fileMenu = self._window.menuBar().addMenu("&Units")
 443                         fileMenu.addAction(self._closeWindowAction)
 444                         fileMenu.addAction(self._app.quitAction)
 445
 446                         viewMenu = self._window.menuBar().addMenu("&View")
 447                         viewMenu.addAction(self._app.fullscreenAction)
 448
 449                 self._window.addAction(self._app.logAction)
 450
 451                 self.set_fullscreen(self._app.fullscreenAction.isChecked())
 452                 self._window.show()
 453
 454         @property
 455         def window(self):
 456                 return self._window
 457
 458         def close(self):
 459                 self._window.close()
 460
 461         def set_fullscreen(self, isFullscreen):
 462                 if isFullscreen:
 463                         self._window.showFullScreen()
 464                 else:
 465                         self._window.showNormal()
 466
 467         @misc_utils.log_exception(_moduleLogger)
 468         def _on_close_window(self, checked = True):
 469                 self.close()
 470
 471         @misc_utils.log_exception(_moduleLogger)
 472         def _on_result_clicked(self, item, columnIndex):
 473                 categoryName = unicode(item.text(0))
 474                 unitName = unicode(item.text(1))
 475                 catWindow = self._app.request_category()
 476                 unitsWindow = catWindow.select_category(categoryName)
 477                 unitsWindow.select_unit(unitName)
 478                 self.close()
 479
 480
 481 class FavoriteCategoriesWindow(object):
 482
 483         def __init__(self, parent, app, source, hidden):
 484                 self._app = app
 485                 self._source = list(source)
 486                 self._hidden = hidden
 487
 488                 self._categories = QtGui.QTreeWidget()
 489                 self._categories.setHeaderLabels(["Categories"])
 490                 self._categories.setHeaderHidden(True)
 491                 if not IS_MAEMO:
 492                         self._categories.setAlternatingRowColors(True)
 493                 self._categories.setSelectionBehavior(QtGui.QAbstractItemView.SelectRows)
 494                 self._categories.setSelectionMode(QtGui.QAbstractItemView.MultiSelection)
 495                 self._childWidgets = []
 496                 for catName in self._source:
 497                         twi = QtGui.QTreeWidgetItem(self._categories)
 498                         twi.setText(0, catName)
 499                         self._childWidgets.append(twi)
 500                         if catName not in self._hidden:
 501                                 self._categories.setItemSelected(twi, True)
 502                 self._selection = self._categories.selectionModel()
 503                 self._selection.selectionChanged.connect(self._on_selection_changed)
 504
 505                 self._allButton = QtGui.QPushButton("All")
 506                 self._allButton.clicked.connect(self._on_select_all)
 507                 self._invertButton = QtGui.QPushButton("Invert")
 508                 self._invertButton.clicked.connect(self._on_invert_selection)
 509                 self._noneButton = QtGui.QPushButton("None")
 510                 self._noneButton.clicked.connect(self._on_select_none)
 511
 512                 self._buttonLayout = QtGui.QHBoxLayout()
 513                 self._buttonLayout.addWidget(self._allButton)
 514                 self._buttonLayout.addWidget(self._invertButton)
 515                 self._buttonLayout.addWidget(self._noneButton)
 516
 517                 self._layout = QtGui.QVBoxLayout()
 518                 self._layout.addWidget(self._categories)
 519                 self._layout.addLayout(self._buttonLayout)
 520
 521                 centralWidget = QtGui.QWidget()
 522                 centralWidget.setLayout(self._layout)
 523
 524                 self._window = QtGui.QMainWindow(parent)
 525                 self._window.setAttribute(QtCore.Qt.WA_DeleteOnClose, True)
 526                 maeqt.set_autorient(self._window, True)
 527                 maeqt.set_stackable(self._window, True)
 528                 if parent is not None:
 529                         self._window.setWindowModality(QtCore.Qt.WindowModal)
 530                 self._window.setWindowTitle("%s - Favorites" % constants.__pretty_app_name__)
 531                 self._window.setWindowIcon(QtGui.QIcon(self._app.appIconPath))
 532                 self._window.setCentralWidget(centralWidget)
 533
 534                 self._closeWindowAction = QtGui.QAction(None)
 535                 self._closeWindowAction.setText("Close")
 536                 self._closeWindowAction.setShortcut(QtGui.QKeySequence("CTRL+w"))
 537                 self._closeWindowAction.triggered.connect(self._on_close_window)
 538
 539                 if IS_MAEMO:
 540                         self._window.addAction(self._closeWindowAction)
 541                         self._window.addAction(self._app.quitAction)
 542                         self._window.addAction(self._app.fullscreenAction)
 543                 else:
 544                         fileMenu = self._window.menuBar().addMenu("&Units")
 545                         fileMenu.addAction(self._closeWindowAction)
 546                         fileMenu.addAction(self._app.quitAction)
 547
 548                         viewMenu = self._window.menuBar().addMenu("&View")
 549                         viewMenu.addAction(self._app.fullscreenAction)
 550
 551                 self._window.addAction(self._app.logAction)
 552
 553                 self.set_fullscreen(self._app.fullscreenAction.isChecked())
 554                 self._window.show()
 555
 556         @property
 557         def window(self):
 558                 return self._window
 559
 560         def close(self):
 561                 self._window.close()
 562
 563         def set_fullscreen(self, isFullscreen):
 564                 if isFullscreen:
 565                         self._window.showFullScreen()
 566                 else:
 567                         self._window.showNormal()
 568
 569         @misc_utils.log_exception(_moduleLogger)
 570         def _on_select_all(self, checked = False):
 571                 for child in self._childWidgets:
 572                         self._categories.setItemSelected(child, True)
 573
 574         @misc_utils.log_exception(_moduleLogger)
 575         def _on_invert_selection(self, checked = False):
 576                 for child in self._childWidgets:
 577                         isSelected = self._categories.isItemSelected(child)
 578                         self._categories.setItemSelected(child, not isSelected)
 579
 580         @misc_utils.log_exception(_moduleLogger)
 581         def _on_select_none(self, checked = False):
 582                 for child in self._childWidgets:
 583                         self._categories.setItemSelected(child, False)
 584
 585         @misc_utils.log_exception(_moduleLogger)
 586         def _on_selection_changed(self, selected, deselected):
 587                 self._hidden.clear()
 588                 selectedNames = set(
 589                         str(item.text(0))
 590                         for item in self._categories.selectedItems()
 591                 )
 592                 for name in self._source:
 593                         if name not in selectedNames:
 594                                 self._hidden.add(name)
 595
 596         @misc_utils.log_exception(_moduleLogger)
 597         def _on_close_window(self, checked = True):
 598                 self.close()
 599
 600
 601 class CategoryWindow(object):
 602
 603         def __init__(self, parent, app):
 604                 self._app = app
 605                 self._unitWindow = None
 606                 self._favoritesWindow = None
 607
 608                 self._categories = QtGui.QTreeWidget()
 609                 self._categories.setHeaderLabels(["Categories"])
 610                 self._categories.itemClicked.connect(self._on_category_clicked)
 611                 self._categories.setHeaderHidden(True)
 612                 if not IS_MAEMO:
 613                         self._categories.setAlternatingRowColors(True)
 614                 for catName in unit_data.UNIT_CATEGORIES:
 615                         twi = QtGui.QTreeWidgetItem(self._categories)
 616                         twi.setText(0, catName)
 617
 618                 self._layout = QtGui.QVBoxLayout()
 619                 self._layout.addWidget(self._categories)
 620
 621                 centralWidget = QtGui.QWidget()
 622                 centralWidget.setLayout(self._layout)
 623
 624                 self._window = QtGui.QMainWindow(parent)
 625                 self._window.setAttribute(QtCore.Qt.WA_DeleteOnClose, True)
 626                 maeqt.set_autorient(self._window, True)
 627                 maeqt.set_stackable(self._window, True)
 628                 if parent is not None:
 629                         self._window.setWindowModality(QtCore.Qt.WindowModal)
 630                 self._window.setWindowTitle("%s - Categories" % constants.__pretty_app_name__)
 631                 self._window.setWindowIcon(QtGui.QIcon(self._app.appIconPath))
 632                 self._window.setCentralWidget(centralWidget)
 633
 634                 self._chooseFavoritesAction = QtGui.QAction(None)
 635                 self._chooseFavoritesAction.setText("Select Favorites")
 636                 self._chooseFavoritesAction.setShortcut(QtGui.QKeySequence("CTRL+f"))
 637                 self._chooseFavoritesAction.triggered.connect(self._on_choose_favorites)
 638
 639                 self._app.showFavoritesAction.toggled.connect(self._on_show_favorites)
 640
 641                 self._closeWindowAction = QtGui.QAction(None)
 642                 self._closeWindowAction.setText("Close")
 643                 self._closeWindowAction.setShortcut(QtGui.QKeySequence("CTRL+w"))
 644                 self._closeWindowAction.triggered.connect(self._on_close_window)
 645
 646                 if IS_MAEMO:
 647                         fileMenu = self._window.menuBar().addMenu("&Units")
 648                         fileMenu.addAction(self._chooseFavoritesAction)
 649
 650                         viewMenu = self._window.menuBar().addMenu("&View")
 651                         viewMenu.addAction(self._app.showFavoritesAction)
 652                         viewMenu.addSeparator()
 653                         viewMenu.addAction(self._app.jumpAction)
 654                         viewMenu.addAction(self._app.recentAction)
 655
 656                         self._window.addAction(self._closeWindowAction)
 657                         self._window.addAction(self._app.quitAction)
 658                         self._window.addAction(self._app.fullscreenAction)
 659                 else:
 660                         fileMenu = self._window.menuBar().addMenu("&Units")
 661                         fileMenu.addAction(self._chooseFavoritesAction)
 662                         fileMenu.addAction(self._closeWindowAction)
 663                         fileMenu.addAction(self._app.quitAction)
 664
 665                         viewMenu = self._window.menuBar().addMenu("&View")
 666                         viewMenu.addAction(self._app.showFavoritesAction)
 667                         viewMenu.addSeparator()
 668                         viewMenu.addAction(self._app.jumpAction)
 669                         viewMenu.addAction(self._app.recentAction)
 670                         viewMenu.addSeparator()
 671                         viewMenu.addAction(self._app.fullscreenAction)
 672
 673                 self._window.addAction(self._app.logAction)
 674
 675                 self._update_favorites()
 676                 self.set_fullscreen(self._app.fullscreenAction.isChecked())
 677                 self._window.show()
 678
 679         @property
 680         def window(self):
 681                 return self._window
 682
 683         def walk_children(self):
 684                 if self._unitWindow is not None:
 685                         yield self._unitWindow
 686                 if self._favoritesWindow is not None:
 687                         yield self._favoritesWindow
 688
 689         def close(self):
 690                 for child in self.walk_children():
 691                         child.close()
 692                 self._window.close()
 693
 694         def select_category(self, categoryName):
 695                 for child in self.walk_children():
 696                         child.close()
 697                 self._unitWindow = UnitWindow(self._window, categoryName, self._app)
 698                 self._unitWindow.window.destroyed.connect(self._on_child_close)
 699
 700                 i = unit_data.UNIT_CATEGORIES.index(categoryName)
 701                 rootIndex = self._categories.rootIndex()
 702                 currentIndex = self._categories.model().index(i, 0, rootIndex)
 703                 self._categories.scrollTo(currentIndex)
 704                 return self._unitWindow
 705
 706         def set_fullscreen(self, isFullscreen):
 707                 if isFullscreen:
 708                         self._window.showFullScreen()
 709                 else:
 710                         self._window.showNormal()
 711                 for child in self.walk_children():
 712                         child.set_fullscreen(isFullscreen)
 713
 714         def _update_favorites(self):
 715                 if self._app.showFavoritesAction.isChecked():
 716                         assert self._categories.topLevelItemCount() == len(unit_data.UNIT_CATEGORIES)
 717                         for i, catName in enumerate(unit_data.UNIT_CATEGORIES):
 718                                 if catName in self._app.hiddenCategories:
 719                                         self._categories.setRowHidden(i, self._categories.rootIndex(), True)
 720                                 else:
 721                                         self._categories.setRowHidden(i, self._categories.rootIndex(), False)
 722                 else:
 723                         for i in xrange(self._categories.topLevelItemCount()):
 724                                 self._categories.setRowHidden(i, self._categories.rootIndex(), False)
 725
 726         @misc_utils.log_exception(_moduleLogger)
 727         def _on_choose_favorites(self, obj = None):
 728                 assert self._favoritesWindow is None
 729                 self._favoritesWindow = FavoriteCategoriesWindow(
 730                         self._window,
 731                         self._app,
 732                         unit_data.UNIT_CATEGORIES,
 733                         self._app.hiddenCategories
 734                 )
 735                 self._favoritesWindow.window.destroyed.connect(self._on_close_favorites)
 736                 return self._favoritesWindow
 737
 738         @misc_utils.log_exception(_moduleLogger)
 739         def _on_show_favorites(self, checked = True):
 740                 if checked:
 741                         assert self._categories.topLevelItemCount() == len(unit_data.UNIT_CATEGORIES)
 742                         for i, catName in enumerate(unit_data.UNIT_CATEGORIES):
 743                                 if catName in self._app.hiddenCategories:
 744                                         self._categories.setRowHidden(i, self._categories.rootIndex(), True)
 745                 else:
 746                         for i in xrange(self._categories.topLevelItemCount()):
 747                                 self._categories.setRowHidden(i, self._categories.rootIndex(), False)
 748
 749         @misc_utils.log_exception(_moduleLogger)
 750         def _on_close_favorites(self, obj = None):
 751                 self._favoritesWindow = None
 752                 self._update_favorites()
 753
 754         @misc_utils.log_exception(_moduleLogger)
 755         def _on_child_close(self, obj = None):
 756                 self._unitWindow = None
 757
 758         @misc_utils.log_exception(_moduleLogger)
 759         def _on_close_window(self, checked = True):
 760                 self.close()
 761
 762         @misc_utils.log_exception(_moduleLogger)
 763         def _on_category_clicked(self, item, columnIndex):
 764                 categoryName = unicode(item.text(0))
 765                 self.select_category(categoryName)
 766
 767
 768 class UnitData(object):
 769
 770         HEADERS = ["Name", "Value", "", "Unit"]
 771         ALIGNMENT = [QtCore.Qt.AlignLeft, QtCore.Qt.AlignRight, QtCore.Qt.AlignLeft, QtCore.Qt.AlignLeft]
 772         NAME_COLUMN = 0
 773         VALUE_COLUMN_0 = 1
 774         VALUE_COLUMN_1 = 2
 775         UNIT_COLUMN = 3
 776
 777         def __init__(self, name, unit, description, conversion):
 778                 self._name = name
 779                 self._unit = unit
 780                 self._description = description
 781                 self._conversion = conversion
 782
 783                 self._value = 0.0
 784                 self._integerDisplay, self._fractionalDisplay = split_number(self._value)
 785
 786         @property
 787         def name(self):
 788                 return self._name
 789
 790         @property
 791         def value(self):
 792                 return self._value
 793
 794         def update_value(self, newValue):
 795                 self._value = newValue
 796                 self._integerDisplay, self._fractionalDisplay = split_number(newValue)
 797
 798         @property
 799         def unit(self):
 800                 return self._unit
 801
 802         @property
 803         def conversion(self):
 804                 return self._conversion
 805
 806         def data(self, column):
 807                 try:
 808                         return [self._name, self._integerDisplay, self._fractionalDisplay, self._unit][column]
 809                 except IndexError:
 810                         return None
 811
 812
 813 class UnitModel(QtCore.QAbstractItemModel):
 814
 815         def __init__(self, categoryName, parent=None):
 816                 super(UnitModel, self).__init__(parent)
 817                 self._categoryName = categoryName
 818                 self._unitData = unit_data.UNIT_DESCRIPTIONS[self._categoryName]
 819
 820                 self._children = []
 821                 for key in unit_data.get_units(self._categoryName):
 822                         conversion, unit, description = self._unitData[key]
 823                         self._children.append(UnitData(key, unit, description, conversion))
 824                 self._sortSettings = None
 825
 826         @misc_utils.log_exception(_moduleLogger)
 827         def columnCount(self, parent):
 828                 if parent.isValid():
 829                         return 0
 830                 else:
 831                         return len(UnitData.HEADERS)
 832
 833         @misc_utils.log_exception(_moduleLogger)
 834         def data(self, index, role):
 835                 if not index.isValid():
 836                         return None
 837                 elif role == QtCore.Qt.TextAlignmentRole:
 838                         return UnitData.ALIGNMENT[index.column()]
 839                 elif role != QtCore.Qt.DisplayRole:
 840                         return None
 841
 842                 item = index.internalPointer()
 843                 if isinstance(item, UnitData):
 844                         return item.data(index.column())
 845                 elif item is UnitData.HEADERS:
 846                         return item[index.column()]
 847
 848         @misc_utils.log_exception(_moduleLogger)
 849         def sort(self, column, order = QtCore.Qt.AscendingOrder):
 850                 self._sortSettings = column, order
 851                 isReverse = order == QtCore.Qt.AscendingOrder
 852                 if column == UnitData.NAME_COLUMN:
 853                         key_func = lambda item: item.name
 854                 elif column in [UnitData.VALUE_COLUMN_0, UnitData.VALUE_COLUMN_1]:
 855                         key_func = lambda item: item.value
 856                 elif column == UnitData.UNIT_COLUMN:
 857                         key_func = lambda item: item.unit
 858                 self._children.sort(key=key_func, reverse = isReverse)
 859
 860                 self._all_changed()
 861
 862         @misc_utils.log_exception(_moduleLogger)
 863         def flags(self, index):
 864                 if not index.isValid():
 865                         return QtCore.Qt.NoItemFlags
 866
 867                 return QtCore.Qt.ItemIsEnabled | QtCore.Qt.ItemIsSelectable
 868
 869         @misc_utils.log_exception(_moduleLogger)
 870         def headerData(self, section, orientation, role):
 871                 if orientation == QtCore.Qt.Horizontal and role == QtCore.Qt.DisplayRole:
 872                         return UnitData.HEADERS[section]
 873
 874                 return None
 875
 876         @misc_utils.log_exception(_moduleLogger)
 877         def index(self, row, column, parent):
 878                 if not self.hasIndex(row, column, parent):
 879                         return QtCore.QModelIndex()
 880
 881                 if parent.isValid():
 882                         return QtCore.QModelIndex()
 883
 884                 parentItem = UnitData.HEADERS
 885                 childItem = self._children[row]
 886                 if childItem:
 887                         return self.createIndex(row, column, childItem)
 888                 else:
 889                         return QtCore.QModelIndex()
 890
 891         @misc_utils.log_exception(_moduleLogger)
 892         def parent(self, index):
 893                 if not index.isValid():
 894                         return QtCore.QModelIndex()
 895
 896                 childItem = index.internalPointer()
 897                 if isinstance(childItem, UnitData):
 898                         return QtCore.QModelIndex()
 899                 elif childItem is UnitData.HEADERS:
 900                         return None
 901
 902         @misc_utils.log_exception(_moduleLogger)
 903         def rowCount(self, parent):
 904                 if 0 < parent.column():
 905                         return 0
 906
 907                 if not parent.isValid():
 908                         return len(self._children)
 909                 else:
 910                         return len(self._children)
 911
 912         def get_unit(self, index):
 913                 assert 0 <= index
 914                 return self._children[index]
 915
 916         def get_unit_names(self):
 917                 for child in self._children:
 918                         yield child.name
 919
 920         def index_unit(self, unitName):
 921                 for i, child in enumerate(self._children):
 922                         if child.name == unitName:
 923                                 return i
 924                 else:
 925                         raise RuntimeError("Unit not found")
 926
 927         def update_values(self, fromIndex, userInput):
 928                 value = self._sanitize_value(userInput)
 929                 func, arg = self._children[fromIndex].conversion
 930                 base = func.to_base(value, arg)
 931                 for i, child in enumerate(self._children):
 932                         if i == fromIndex:
 933                                 continue
 934                         func, arg = child.conversion
 935                         newValue = func.from_base(base, arg)
 936                         child.update_value(newValue)
 937
 938                 if (
 939                         self._sortSettings is not None and
 940                         self._sortSettings[0]  in [UnitData.VALUE_COLUMN_0, UnitData.VALUE_COLUMN_1]
 941                 ):
 942                         self.sort(*self._sortSettings)
 943                         self._all_changed()
 944                 else:
 945                         self._values_changed()
 946
 947         def __len__(self):
 948                 return len(self._children)
 949
 950         def _values_changed(self):
 951                 topLeft = self.createIndex(0, UnitData.VALUE_COLUMN_0, self._children[0])
 952                 bottomRight = self.createIndex(len(self._children)-1, UnitData.VALUE_COLUMN_1, self._children[-1])
 953                 self.dataChanged.emit(topLeft, bottomRight)
 954
 955         def _all_changed(self):
 956                 topLeft = self.createIndex(0, 0, self._children[0])
 957                 bottomRight = self.createIndex(len(self._children)-1, len(UnitData.HEADERS)-1, self._children[-1])
 958                 self.dataChanged.emit(topLeft, bottomRight)
 959
 960         def _sanitize_value(self, userEntry):
 961                 if self._categoryName == "Computer Numbers":
 962                         if userEntry == '':
 963                                 value = '0'
 964                         else:
 965                                 value = userEntry
 966                 else:
 967                         if userEntry == '':
 968                                 value = 0.0
 969                         else:
 970                                 value = float(userEntry)
 971                 return value
 972
 973
 974 class UnitWindow(object):
 975
 976         def __init__(self, parent, category, app):
 977                 self._app = app
 978                 self._categoryName = category
 979                 self._selectedIndex = 0
 980                 self._favoritesWindow = None
 981
 982                 self._selectedUnitName = QtGui.QLabel()
 983                 self._selectedUnitValue = QtGui.QLineEdit()
 984                 self._selectedUnitValue.setInputMethodHints(QtCore.Qt.ImhPreferNumbers)
 985                 self._selectedUnitValue.textEdited.connect(self._on_value_edited)
 986                 self._selectedUnitSymbol = QtGui.QLabel()
 987
 988                 self._selectedUnitLayout = QtGui.QHBoxLayout()
 989                 self._selectedUnitLayout.addWidget(self._selectedUnitName)
 990                 self._selectedUnitLayout.addWidget(self._selectedUnitValue)
 991                 self._selectedUnitLayout.addWidget(self._selectedUnitSymbol)
 992
 993                 self._unitsModel = UnitModel(self._categoryName)
 994                 self._unitsView = QtGui.QTreeView()
 995                 self._unitsView.setModel(self._unitsModel)
 996                 self._unitsView.clicked.connect(self._on_unit_clicked)
 997                 self._unitsView.setUniformRowHeights(True)
 998                 self._unitsView.setSortingEnabled(True)
 999                 self._unitsView.setTextElideMode(QtCore.Qt.ElideNone)
1000                 self._unitsView.setHorizontalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
1001                 if not IS_MAEMO:
1002                         self._unitsView.setAlternatingRowColors(True)
1003                 if True:
1004                         self._unitsView.setHeaderHidden(True)
1005
1006                 viewHeader = self._unitsView.header()
1007                 viewHeader.setSortIndicatorShown(True)
1008                 viewHeader.setClickable(True)
1009
1010                 viewHeader.setResizeMode(UnitData.NAME_COLUMN, QtGui.QHeaderView.ResizeToContents)
1011                 viewHeader.setResizeMode(UnitData.VALUE_COLUMN_0, QtGui.QHeaderView.ResizeToContents)
1012                 viewHeader.setResizeMode(UnitData.VALUE_COLUMN_1, QtGui.QHeaderView.ResizeToContents)
1013                 viewHeader.setResizeMode(UnitData.UNIT_COLUMN, QtGui.QHeaderView.ResizeToContents)
1014                 viewHeader.setStretchLastSection(False)
1015
1016                 # Trying to make things faster by locking in the initial size of the immutable columns
1017                 nameSize = viewHeader.sectionSize(UnitData.NAME_COLUMN)
1018                 viewHeader.setResizeMode(UnitData.NAME_COLUMN, QtGui.QHeaderView.Fixed)
1019                 viewHeader.resizeSection(UnitData.NAME_COLUMN, nameSize)
1020                 unitSize = viewHeader.sectionSize(UnitData.UNIT_COLUMN)
1021                 viewHeader.setResizeMode(UnitData.UNIT_COLUMN, QtGui.QHeaderView.Fixed)
1022                 viewHeader.resizeSection(UnitData.UNIT_COLUMN, unitSize)
1023
1024                 self._layout = QtGui.QVBoxLayout()
1025                 self._layout.addLayout(self._selectedUnitLayout)
1026                 self._layout.addWidget(self._unitsView)
1027
1028                 centralWidget = QtGui.QWidget()
1029                 centralWidget.setLayout(self._layout)
1030
1031                 self._window = QtGui.QMainWindow(parent)
1032                 self._window.setAttribute(QtCore.Qt.WA_DeleteOnClose, True)
1033                 maeqt.set_autorient(self._window, True)
1034                 maeqt.set_stackable(self._window, True)
1035                 if parent is not None:
1036                         self._window.setWindowModality(QtCore.Qt.WindowModal)
1037                 self._window.setWindowTitle("%s - %s" % (constants.__pretty_app_name__, category))
1038                 self._window.setWindowIcon(QtGui.QIcon(app.appIconPath))
1039                 self._window.setCentralWidget(centralWidget)
1040
1041                 defaultUnitName = self._app.get_recent_unit(self._categoryName)
1042                 if defaultUnitName:
1043                         self.select_unit(defaultUnitName)
1044                 else:
1045                         self._select_unit(0)
1046                 self._unitsModel.sort(UnitData.NAME_COLUMN)
1047
1048                 self._sortActionGroup = QtGui.QActionGroup(None)
1049                 self._sortByNameAction = QtGui.QAction(self._sortActionGroup)
1050                 self._sortByNameAction.setText("Sort By Name")
1051                 self._sortByNameAction.setStatusTip("Sort the units by name")
1052                 self._sortByNameAction.setToolTip("Sort the units by name")
1053                 self._sortByNameAction.setCheckable(True)
1054                 self._sortByValueAction = QtGui.QAction(self._sortActionGroup)
1055                 self._sortByValueAction.setText("Sort By Value")
1056                 self._sortByValueAction.setStatusTip("Sort the units by value")
1057                 self._sortByValueAction.setToolTip("Sort the units by value")
1058                 self._sortByValueAction.setCheckable(True)
1059                 self._sortByUnitAction = QtGui.QAction(self._sortActionGroup)
1060                 self._sortByUnitAction.setText("Sort By Unit")
1061                 self._sortByUnitAction.setStatusTip("Sort the units by unit")
1062                 self._sortByUnitAction.setToolTip("Sort the units by unit")
1063                 self._sortByUnitAction.setCheckable(True)
1064
1065                 self._sortByValueAction.setChecked(True)
1066
1067                 self._chooseFavoritesAction = QtGui.QAction(None)
1068                 self._chooseFavoritesAction.setText("Select Favorites")
1069                 self._chooseFavoritesAction.setShortcut(QtGui.QKeySequence("CTRL+f"))
1070                 self._chooseFavoritesAction.triggered.connect(self._on_choose_favorites)
1071
1072                 self._app.showFavoritesAction.toggled.connect(self._on_show_favorites)
1073
1074                 self._previousUnitAction = QtGui.QAction(None)
1075                 self._previousUnitAction.setText("Previous Unit")
1076                 self._previousUnitAction.setShortcut(QtGui.QKeySequence("Up"))
1077                 self._previousUnitAction.triggered.connect(self._on_previous_unit)
1078
1079                 self._nextUnitAction = QtGui.QAction(None)
1080                 self._nextUnitAction.setText("Next Unit")
1081                 self._nextUnitAction.setShortcut(QtGui.QKeySequence("Down"))
1082                 self._nextUnitAction.triggered.connect(self._on_next_unit)
1083
1084                 self._closeWindowAction = QtGui.QAction(None)
1085                 self._closeWindowAction.setText("Close Window")
1086                 self._closeWindowAction.setShortcut(QtGui.QKeySequence("CTRL+w"))
1087                 self._closeWindowAction.triggered.connect(self._on_close_window)
1088
1089                 if IS_MAEMO:
1090                         self._window.addAction(self._closeWindowAction)
1091                         self._window.addAction(self._app.quitAction)
1092                         self._window.addAction(self._app.fullscreenAction)
1093
1094                         fileMenu = self._window.menuBar().addMenu("&Units")
1095                         fileMenu.addAction(self._chooseFavoritesAction)
1096
1097                         viewMenu = self._window.menuBar().addMenu("&View")
1098                         viewMenu.addAction(self._app.showFavoritesAction)
1099                         viewMenu.addSeparator()
1100                         viewMenu.addAction(self._sortByNameAction)
1101                         viewMenu.addAction(self._sortByValueAction)
1102                         viewMenu.addAction(self._sortByUnitAction)
1103                         viewMenu.addSeparator()
1104                         viewMenu.addAction(self._app.jumpAction)
1105                         viewMenu.addAction(self._app.recentAction)
1106                 else:
1107                         fileMenu = self._window.menuBar().addMenu("&Units")
1108                         fileMenu.addAction(self._chooseFavoritesAction)
1109                         fileMenu.addAction(self._closeWindowAction)
1110                         fileMenu.addAction(self._app.quitAction)
1111
1112                         viewMenu = self._window.menuBar().addMenu("&View")
1113                         viewMenu.addAction(self._app.showFavoritesAction)
1114                         viewMenu.addSeparator()
1115                         viewMenu.addAction(self._sortByNameAction)
1116                         viewMenu.addAction(self._sortByValueAction)
1117                         viewMenu.addAction(self._sortByUnitAction)
1118                         viewMenu.addSeparator()
1119                         viewMenu.addAction(self._app.jumpAction)
1120                         viewMenu.addAction(self._app.recentAction)
1121                         viewMenu.addSeparator()
1122                         viewMenu.addAction(self._app.fullscreenAction)
1123
1124                 self._sortByNameAction.triggered.connect(self._on_sort_by_name)
1125                 self._sortByValueAction.triggered.connect(self._on_sort_by_value)
1126                 self._sortByUnitAction.triggered.connect(self._on_sort_by_unit)
1127
1128                 self._window.addAction(self._app.logAction)
1129                 self._window.addAction(self._nextUnitAction)
1130                 self._window.addAction(self._previousUnitAction)
1131                 self._window.addAction(self._chooseFavoritesAction)
1132
1133                 self._update_favorites()
1134                 self.set_fullscreen(self._app.fullscreenAction.isChecked())
1135                 self._window.show()
1136
1137         @property
1138         def window(self):
1139                 return self._window
1140
1141         def close(self):
1142                 for child in self.walk_children():
1143                         child.close()
1144                 self._window.close()
1145
1146         def set_fullscreen(self, isFullscreen):
1147                 if isFullscreen:
1148                         self._window.showFullScreen()
1149                 else:
1150                         self._window.showNormal()
1151
1152         def select_unit(self, unitName):
1153                 index = self._unitsModel.index_unit(unitName)
1154                 self._select_unit(index)
1155
1156         def walk_children(self):
1157                 if self._favoritesWindow is not None:
1158                         yield self._favoritesWindow
1159
1160         def _update_favorites(self, force = False):
1161                 if self._app.showFavoritesAction.isChecked():
1162                         unitNames = list(self._unitsModel.get_unit_names())
1163                         for i, unitName in enumerate(unitNames):
1164                                 if unitName in self._app.get_hidden_units(self._categoryName):
1165                                         self._unitsView.setRowHidden(i, self._unitsView.rootIndex(), True)
1166                                 else:
1167                                         self._unitsView.setRowHidden(i, self._unitsView.rootIndex(), False)
1168                 else:
1169                         if force:
1170                                 for i in xrange(len(self._unitsModel)):
1171                                         self._unitsView.setRowHidden(i, self._unitsView.rootIndex(), False)
1172
1173         @misc_utils.log_exception(_moduleLogger)
1174         def _on_choose_favorites(self, obj = None):
1175                 assert self._favoritesWindow is None
1176                 self._favoritesWindow = FavoriteCategoriesWindow(
1177                         self._window,
1178                         self._app,
1179                         unit_data.get_units(self._categoryName),
1180                         self._app.get_hidden_units(self._categoryName)
1181                 )
1182                 self._favoritesWindow.window.destroyed.connect(self._on_close_favorites)
1183                 return self._favoritesWindow
1184
1185         @misc_utils.log_exception(_moduleLogger)
1186         def _on_show_favorites(self, checked = True):
1187                 if checked:
1188                         unitNames = list(self._unitsModel.get_unit_names())
1189                         for i, unitName in enumerate(unitNames):
1190                                 if unitName in self._app.get_hidden_units(self._categoryName):
1191                                         self._unitsView.setRowHidden(i, self._unitsView.rootIndex(), True)
1192                 else:
1193                         for i in xrange(len(self._unitsModel)):
1194                                 self._unitsView.setRowHidden(i, self._unitsView.rootIndex(), False)
1195
1196         @misc_utils.log_exception(_moduleLogger)
1197         def _on_close_favorites(self, obj = None):
1198                 self._favoritesWindow = None
1199                 self._update_favorites(force=True)
1200
1201         @misc_utils.log_exception(_moduleLogger)
1202         def _on_previous_unit(self, checked = True):
1203                 self._select_unit(self._selectedIndex - 1)
1204
1205         @misc_utils.log_exception(_moduleLogger)
1206         def _on_next_unit(self, checked = True):
1207                 self._select_unit(self._selectedIndex + 1)
1208
1209         @misc_utils.log_exception(_moduleLogger)
1210         def _on_close_window(self, checked = True):
1211                 self.close()
1212
1213         @misc_utils.log_exception(_moduleLogger)
1214         def _on_sort_by_name(self, checked = False):
1215                 self._unitsModel.sort(UnitData.NAME_COLUMN, QtCore.Qt.DescendingOrder)
1216
1217         @misc_utils.log_exception(_moduleLogger)
1218         def _on_sort_by_value(self, checked = False):
1219                 self._unitsModel.sort(UnitData.VALUE_COLUMN_0)
1220
1221         @misc_utils.log_exception(_moduleLogger)
1222         def _on_sort_by_unit(self, checked = False):
1223                 self._unitsModel.sort(UnitData.UNIT_COLUMN, QtCore.Qt.DescendingOrder)
1224
1225         @misc_utils.log_exception(_moduleLogger)
1226         def _on_unit_clicked(self, index):
1227                 self._select_unit(index.row())
1228
1229         @misc_utils.log_exception(_moduleLogger)
1230         def _on_value_edited(self, *args):
1231                 userInput = self._selectedUnitValue.text()
1232                 self._unitsModel.update_values(self._selectedIndex, str(userInput))
1233                 self._update_favorites()
1234
1235         def _select_unit(self, index):
1236                 unit = self._unitsModel.get_unit(index)
1237                 self._selectedUnitName.setText(unit.name)
1238                 self._selectedUnitValue.setText(str(unit.value))
1239                 self._selectedUnitSymbol.setText(unit.unit)
1240
1241                 self._selectedIndex = index
1242                 qindex = self._unitsModel.createIndex(index, 0, self._unitsModel.get_unit(index))
1243                 self._unitsView.scrollTo(qindex)
1244                 self._app.add_recent(self._categoryName, self._unitsModel.get_unit(index).name)
1245
1246
1247 def run_gonvert():
1248         app = QtGui.QApplication([])
1249         handle = Gonvert(app)
1250         return app.exec_()
1251
1252
1253 if __name__ == "__main__":
1254         logging.basicConfig(level = logging.DEBUG)
1255         try:
1256                 os.makedirs(constants._data_path_)
1257         except OSError, e:
1258                 if e.errno != 17:
1259                         raise
1260
1261         val = run_gonvert()
1262         sys.exit(val)