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._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                 self._close_windows()
 135                 self._jumpWindow = QuickJump(None, self)
 136                 self._jumpWindow.window.destroyed.connect(lambda obj = None: self._on_child_close("_jumpWindow", obj))
 137                 return self._jumpWindow
 138
 139         def show_recent(self):
 140                 self._close_windows()
 141                 self._recentWindow = Recent(None, self)
 142                 self._recentWindow.window.destroyed.connect(lambda obj = None: self._on_child_close("_recentWindow", obj))
 143                 return self._recentWindow
 144
 145         def add_recent(self, categoryName, unitName):
 146                 catUnit = categoryName, unitName
 147                 try:
 148                         self._recent.remove(catUnit)
 149                 except ValueError:
 150                         pass # ignore if its not already in the recent history
 151                 assert catUnit not in self._recent
 152                 self._recent.append(catUnit)
 153
 154         def get_recent_unit(self, categoryName):
 155                 for catName, unitName in reversed(self._recent):
 156                         if catName == categoryName:
 157                                 return unitName
 158                 else:
 159                         return ""
 160
 161         def get_recent(self):
 162                 return reversed(self._recent)
 163
 164         @property
 165         def hiddenCategories(self):
 166                 return self._hiddenCategories
 167
 168         def get_hidden_units(self, categoryName):
 169                 try:
 170                         return self._hiddenUnits[categoryName]
 171                 except KeyError:
 172                         self._hiddenUnits[categoryName] = set()
 173                         return self._hiddenUnits[categoryName]
 174
 175         def load_settings(self):
 176                 try:
 177                         with open(constants._user_settings_, "r") as settingsFile:
 178                                 settings = simplejson.load(settingsFile)
 179                 except IOError, e:
 180                         _moduleLogger.info("No settings")
 181                         settings = {}
 182                 except ValueError:
 183                         _moduleLogger.info("Settings were corrupt")
 184                         settings = {}
 185
 186                 self._fullscreenAction.setChecked(settings.get("isFullScreen", False))
 187
 188                 recent = settings.get("recent", self._recent)
 189                 for category, unit in recent:
 190                         self.add_recent(category, unit)
 191
 192                 self._hiddenCategories = set(settings.get("hiddenCategories", set()))
 193                 self._hiddenUnits = dict(
 194                         (catName, set(units))
 195                         for (catName, units) in settings.get("hiddenUnits", {}).iteritems()
 196                 )
 197
 198                 self._showFavoritesAction.setChecked(settings.get("showFavorites", True))
 199
 200                 if self._recent:
 201                         self._catWindow.select_category(self._recent[-1][0])
 202
 203         def save_settings(self):
 204                 settings = {
 205                         "isFullScreen": self._fullscreenAction.isChecked(),
 206                         "recent": self._recent,
 207                         "hiddenCategories": list(self._hiddenCategories),
 208                         "hiddenUnits": dict(
 209                                 (catName, list(units))
 210                                 for (catName, units) in self._hiddenUnits.iteritems()
 211                         ),
 212                         "showFavorites": self._showFavoritesAction.isChecked(),
 213                 }
 214                 with open(constants._user_settings_, "w") as settingsFile:
 215                         simplejson.dump(settings, settingsFile)
 216
 217         @property
 218         def appIconPath(self):
 219                 return self._appIconPath
 220
 221         @property
 222         def jumpAction(self):
 223                 return self._jumpAction
 224
 225         @property
 226         def recentAction(self):
 227                 return self._recentAction
 228
 229         @property
 230         def fullscreenAction(self):
 231                 return self._fullscreenAction
 232
 233         @property
 234         def logAction(self):
 235                 return self._logAction
 236
 237         @property
 238         def quitAction(self):
 239                 return self._quitAction
 240
 241         @property
 242         def showFavoritesAction(self):
 243                 return self._showFavoritesAction
 244
 245         def _walk_children(self):
 246                 if self._catWindow is not None:
 247                         yield self._catWindow
 248                 if self._jumpWindow is not None:
 249                         yield self._jumpWindow
 250                 if self._recentWindow is not None:
 251                         yield self._recentWindow
 252
 253         def _close_windows(self):
 254                 for window in self._walk_children():
 255                         window.close()
 256                 self._catWindow = None
 257                 self._jumpWindow = None
 258                 self._recentWindow = None
 259
 260         @misc_utils.log_exception(_moduleLogger)
 261         def _on_app_quit(self, checked = False):
 262                 self.save_settings()
 263
 264         @misc_utils.log_exception(_moduleLogger)
 265         def _on_child_close(self, name, obj = None):
 266                 if not hasattr(self, name):
 267                         _moduleLogger.info("Something weird going on when we don't have a %s" % name)
 268                         return
 269                 setattr(self, name, None)
 270
 271         @misc_utils.log_exception(_moduleLogger)
 272         def _on_toggle_fullscreen(self, checked = False):
 273                 for window in self._walk_children():
 274                         window.set_fullscreen(checked)
 275
 276         @misc_utils.log_exception(_moduleLogger)
 277         def _on_jump_start(self, checked = False):
 278                 self.search_units()
 279
 280         @misc_utils.log_exception(_moduleLogger)
 281         def _on_recent_start(self, checked = False):
 282                 self.show_recent()
 283
 284         @misc_utils.log_exception(_moduleLogger)
 285         def _on_log(self, checked = False):
 286                 with open(constants._user_logpath_, "r") as f:
 287                         logLines = f.xreadlines()
 288                         log = "".join(logLines)
 289                         self._clipboard.setText(log)
 290
 291         @misc_utils.log_exception(_moduleLogger)
 292         def _on_quit(self, checked = False):
 293                 self._close_windows()
 294
 295
 296 class QuickJump(object):
 297
 298         MINIMAL_ENTRY = 3
 299
 300         def __init__(self, parent, app):
 301                 self._app = app
 302
 303                 self._searchLabel = QtGui.QLabel("Search:")
 304                 self._searchEntry = QtGui.QLineEdit("")
 305                 self._searchEntry.textEdited.connect(self._on_search_edited)
 306
 307                 self._entryLayout = QtGui.QHBoxLayout()
 308                 self._entryLayout.addWidget(self._searchLabel)
 309                 self._entryLayout.addWidget(self._searchEntry)
 310
 311                 self._resultsBox = QtGui.QTreeWidget()
 312                 self._resultsBox.setHeaderLabels(["Categories", "Units"])
 313                 self._resultsBox.setHeaderHidden(True)
 314                 if not IS_MAEMO:
 315                         self._resultsBox.setAlternatingRowColors(True)
 316                 self._resultsBox.itemClicked.connect(self._on_result_clicked)
 317
 318                 self._layout = QtGui.QVBoxLayout()
 319                 self._layout.addLayout(self._entryLayout)
 320                 self._layout.addWidget(self._resultsBox)
 321
 322                 centralWidget = QtGui.QWidget()
 323                 centralWidget.setLayout(self._layout)
 324
 325                 self._window = QtGui.QMainWindow(parent)
 326                 self._window.setAttribute(QtCore.Qt.WA_DeleteOnClose, True)
 327                 maeqt.set_autorient(self._window, True)
 328                 maeqt.set_stackable(self._window, True)
 329                 if parent is not None:
 330                         self._window.setWindowModality(QtCore.Qt.WindowModal)
 331                 self._window.setWindowTitle("%s - Quick Jump" % constants.__pretty_app_name__)
 332                 self._window.setWindowIcon(QtGui.QIcon(self._app.appIconPath))
 333                 self._window.setCentralWidget(centralWidget)
 334
 335                 self._closeWindowAction = QtGui.QAction(None)
 336                 self._closeWindowAction.setText("Close")
 337                 self._closeWindowAction.setShortcut(QtGui.QKeySequence("CTRL+w"))
 338                 self._closeWindowAction.triggered.connect(self._on_close_window)
 339
 340                 if IS_MAEMO:
 341                         self._window.addAction(self._closeWindowAction)
 342                         self._window.addAction(self._app.quitAction)
 343                         self._window.addAction(self._app.fullscreenAction)
 344                 else:
 345                         fileMenu = self._window.menuBar().addMenu("&Units")
 346                         fileMenu.addAction(self._closeWindowAction)
 347                         fileMenu.addAction(self._app.quitAction)
 348
 349                         viewMenu = self._window.menuBar().addMenu("&View")
 350                         viewMenu.addAction(self._app.fullscreenAction)
 351
 352                 self._window.addAction(self._app.logAction)
 353
 354                 self.set_fullscreen(self._app.fullscreenAction.isChecked())
 355                 self._window.show()
 356
 357         @property
 358         def window(self):
 359                 return self._window
 360
 361         def close(self):
 362                 self._window.close()
 363
 364         def set_fullscreen(self, isFullscreen):
 365                 if isFullscreen:
 366                         self._window.showFullScreen()
 367                 else:
 368                         self._window.showNormal()
 369
 370         @misc_utils.log_exception(_moduleLogger)
 371         def _on_close_window(self, checked = True):
 372                 self.close()
 373
 374         @misc_utils.log_exception(_moduleLogger)
 375         def _on_result_clicked(self, item, columnIndex):
 376                 categoryName = unicode(item.text(0))
 377                 unitName = unicode(item.text(1))
 378                 catWindow = self._app.request_category()
 379                 unitsWindow = catWindow.select_category(categoryName)
 380                 unitsWindow.select_unit(unitName)
 381                 self.close()
 382
 383         @misc_utils.log_exception(_moduleLogger)
 384         def _on_search_edited(self, *args):
 385                 userInput = self._searchEntry.text()
 386                 if len(userInput) <  self.MINIMAL_ENTRY:
 387                         return
 388
 389                 self._resultsBox.clear()
 390                 lowerInput = str(userInput).lower()
 391                 for catIndex, category in enumerate(unit_data.UNIT_CATEGORIES):
 392                         units = unit_data.get_units(category)
 393                         for unitIndex, unit in enumerate(units):
 394                                 loweredUnit = unit.lower()
 395                                 if lowerInput in loweredUnit:
 396                                         twi = QtGui.QTreeWidgetItem(self._resultsBox)
 397                                         twi.setText(0, category)
 398                                         twi.setText(1, unit)
 399
 400
 401 class Recent(object):
 402
 403         def __init__(self, parent, app):
 404                 self._app = app
 405
 406                 self._resultsBox = QtGui.QTreeWidget()
 407                 self._resultsBox.setHeaderLabels(["Categories", "Units"])
 408                 self._resultsBox.setHeaderHidden(True)
 409                 if not IS_MAEMO:
 410                         self._resultsBox.setAlternatingRowColors(True)
 411                 self._resultsBox.itemClicked.connect(self._on_result_clicked)
 412
 413                 self._layout = QtGui.QVBoxLayout()
 414                 self._layout.addWidget(self._resultsBox)
 415
 416                 centralWidget = QtGui.QWidget()
 417                 centralWidget.setLayout(self._layout)
 418
 419                 self._window = QtGui.QMainWindow(parent)
 420                 self._window.setAttribute(QtCore.Qt.WA_DeleteOnClose, True)
 421                 maeqt.set_autorient(self._window, True)
 422                 maeqt.set_stackable(self._window, True)
 423                 if parent is not None:
 424                         self._window.setWindowModality(QtCore.Qt.WindowModal)
 425                 self._window.setWindowTitle("%s - Recent" % constants.__pretty_app_name__)
 426                 self._window.setWindowIcon(QtGui.QIcon(self._app.appIconPath))
 427                 self._window.setCentralWidget(centralWidget)
 428
 429                 for cat, unit in self._app.get_recent():
 430                         twi = QtGui.QTreeWidgetItem(self._resultsBox)
 431                         twi.setText(0, cat)
 432                         twi.setText(1, unit)
 433
 434                 self._closeWindowAction = QtGui.QAction(None)
 435                 self._closeWindowAction.setText("Close")
 436                 self._closeWindowAction.setShortcut(QtGui.QKeySequence("CTRL+w"))
 437                 self._closeWindowAction.triggered.connect(self._on_close_window)
 438
 439                 if IS_MAEMO:
 440                         self._window.addAction(self._closeWindowAction)
 441                         self._window.addAction(self._app.quitAction)
 442                         self._window.addAction(self._app.fullscreenAction)
 443                 else:
 444                         fileMenu = self._window.menuBar().addMenu("&Units")
 445                         fileMenu.addAction(self._closeWindowAction)
 446                         fileMenu.addAction(self._app.quitAction)
 447
 448                         viewMenu = self._window.menuBar().addMenu("&View")
 449                         viewMenu.addAction(self._app.fullscreenAction)
 450
 451                 self._window.addAction(self._app.logAction)
 452
 453                 self.set_fullscreen(self._app.fullscreenAction.isChecked())
 454                 self._window.show()
 455
 456         @property
 457         def window(self):
 458                 return self._window
 459
 460         def close(self):
 461                 self._window.close()
 462
 463         def set_fullscreen(self, isFullscreen):
 464                 if isFullscreen:
 465                         self._window.showFullScreen()
 466                 else:
 467                         self._window.showNormal()
 468
 469         @misc_utils.log_exception(_moduleLogger)
 470         def _on_close_window(self, checked = True):
 471                 self.close()
 472
 473         @misc_utils.log_exception(_moduleLogger)
 474         def _on_result_clicked(self, item, columnIndex):
 475                 categoryName = unicode(item.text(0))
 476                 unitName = unicode(item.text(1))
 477                 catWindow = self._app.request_category()
 478                 unitsWindow = catWindow.select_category(categoryName)
 479                 unitsWindow.select_unit(unitName)
 480                 self.close()
 481
 482
 483 class FavoriteCategoriesWindow(object):
 484
 485         def __init__(self, parent, app, source, hidden):
 486                 self._app = app
 487                 self._source = list(source)
 488                 self._hidden = hidden
 489
 490                 self._categories = QtGui.QTreeWidget()
 491                 self._categories.setHeaderLabels(["Categories"])
 492                 self._categories.setHeaderHidden(True)
 493                 if not IS_MAEMO:
 494                         self._categories.setAlternatingRowColors(True)
 495                 self._categories.setSelectionBehavior(QtGui.QAbstractItemView.SelectRows)
 496                 self._categories.setSelectionMode(QtGui.QAbstractItemView.MultiSelection)
 497                 self._childWidgets = []
 498                 for catName in self._source:
 499                         twi = QtGui.QTreeWidgetItem(self._categories)
 500                         twi.setText(0, catName)
 501                         self._childWidgets.append(twi)
 502                         if catName not in self._hidden:
 503                                 self._categories.setItemSelected(twi, True)
 504                 self._selection = self._categories.selectionModel()
 505                 self._selection.selectionChanged.connect(self._on_selection_changed)
 506
 507                 self._allButton = QtGui.QPushButton("All")
 508                 self._allButton.clicked.connect(self._on_select_all)
 509                 self._invertButton = QtGui.QPushButton("Invert")
 510                 self._invertButton.clicked.connect(self._on_invert_selection)
 511                 self._noneButton = QtGui.QPushButton("None")
 512                 self._noneButton.clicked.connect(self._on_select_none)
 513
 514                 self._buttonLayout = QtGui.QHBoxLayout()
 515                 self._buttonLayout.addWidget(self._allButton)
 516                 self._buttonLayout.addWidget(self._invertButton)
 517                 self._buttonLayout.addWidget(self._noneButton)
 518
 519                 self._layout = QtGui.QVBoxLayout()
 520                 self._layout.addWidget(self._categories)
 521                 self._layout.addLayout(self._buttonLayout)
 522
 523                 centralWidget = QtGui.QWidget()
 524                 centralWidget.setLayout(self._layout)
 525
 526                 self._window = QtGui.QMainWindow(parent)
 527                 self._window.setAttribute(QtCore.Qt.WA_DeleteOnClose, True)
 528                 maeqt.set_autorient(self._window, True)
 529                 maeqt.set_stackable(self._window, True)
 530                 if parent is not None:
 531                         self._window.setWindowModality(QtCore.Qt.WindowModal)
 532                 self._window.setWindowTitle("%s - Favorites" % constants.__pretty_app_name__)
 533                 self._window.setWindowIcon(QtGui.QIcon(self._app.appIconPath))
 534                 self._window.setCentralWidget(centralWidget)
 535
 536                 self._closeWindowAction = QtGui.QAction(None)
 537                 self._closeWindowAction.setText("Close")
 538                 self._closeWindowAction.setShortcut(QtGui.QKeySequence("CTRL+w"))
 539                 self._closeWindowAction.triggered.connect(self._on_close_window)
 540
 541                 if IS_MAEMO:
 542                         self._window.addAction(self._closeWindowAction)
 543                         self._window.addAction(self._app.quitAction)
 544                         self._window.addAction(self._app.fullscreenAction)
 545                 else:
 546                         fileMenu = self._window.menuBar().addMenu("&Units")
 547                         fileMenu.addAction(self._closeWindowAction)
 548                         fileMenu.addAction(self._app.quitAction)
 549
 550                         viewMenu = self._window.menuBar().addMenu("&View")
 551                         viewMenu.addAction(self._app.fullscreenAction)
 552
 553                 self._window.addAction(self._app.logAction)
 554
 555                 self.set_fullscreen(self._app.fullscreenAction.isChecked())
 556                 self._window.show()
 557
 558         @property
 559         def window(self):
 560                 return self._window
 561
 562         def close(self):
 563                 self._window.close()
 564
 565         def set_fullscreen(self, isFullscreen):
 566                 if isFullscreen:
 567                         self._window.showFullScreen()
 568                 else:
 569                         self._window.showNormal()
 570
 571         @misc_utils.log_exception(_moduleLogger)
 572         def _on_select_all(self, checked = False):
 573                 for child in self._childWidgets:
 574                         self._categories.setItemSelected(child, True)
 575
 576         @misc_utils.log_exception(_moduleLogger)
 577         def _on_invert_selection(self, checked = False):
 578                 for child in self._childWidgets:
 579                         isSelected = self._categories.isItemSelected(child)
 580                         self._categories.setItemSelected(child, not isSelected)
 581
 582         @misc_utils.log_exception(_moduleLogger)
 583         def _on_select_none(self, checked = False):
 584                 for child in self._childWidgets:
 585                         self._categories.setItemSelected(child, False)
 586
 587         @misc_utils.log_exception(_moduleLogger)
 588         def _on_selection_changed(self, selected, deselected):
 589                 self._hidden.clear()
 590                 selectedNames = set(
 591                         str(item.text(0))
 592                         for item in self._categories.selectedItems()
 593                 )
 594                 for name in self._source:
 595                         if name not in selectedNames:
 596                                 self._hidden.add(name)
 597
 598         @misc_utils.log_exception(_moduleLogger)
 599         def _on_close_window(self, checked = True):
 600                 self.close()
 601
 602
 603 class CategoryWindow(object):
 604
 605         def __init__(self, parent, app):
 606                 self._app = app
 607                 self._unitWindow = None
 608                 self._favoritesWindow = None
 609
 610                 self._categories = QtGui.QTreeWidget()
 611                 self._categories.setHeaderLabels(["Categories"])
 612                 self._categories.itemClicked.connect(self._on_category_clicked)
 613                 self._categories.setHeaderHidden(True)
 614                 if not IS_MAEMO:
 615                         self._categories.setAlternatingRowColors(True)
 616                 for catName in unit_data.UNIT_CATEGORIES:
 617                         twi = QtGui.QTreeWidgetItem(self._categories)
 618                         twi.setText(0, catName)
 619
 620                 self._layout = QtGui.QVBoxLayout()
 621                 self._layout.addWidget(self._categories)
 622
 623                 centralWidget = QtGui.QWidget()
 624                 centralWidget.setLayout(self._layout)
 625
 626                 self._window = QtGui.QMainWindow(parent)
 627                 self._window.setAttribute(QtCore.Qt.WA_DeleteOnClose, True)
 628                 maeqt.set_autorient(self._window, True)
 629                 maeqt.set_stackable(self._window, True)
 630                 if parent is not None:
 631                         self._window.setWindowModality(QtCore.Qt.WindowModal)
 632                 self._window.setWindowTitle("%s - Categories" % constants.__pretty_app_name__)
 633                 self._window.setWindowIcon(QtGui.QIcon(self._app.appIconPath))
 634                 self._window.setCentralWidget(centralWidget)
 635
 636                 self._chooseFavoritesAction = QtGui.QAction(None)
 637                 self._chooseFavoritesAction.setText("Select Favorites")
 638                 self._chooseFavoritesAction.setShortcut(QtGui.QKeySequence("CTRL+f"))
 639                 self._chooseFavoritesAction.triggered.connect(self._on_choose_favorites)
 640
 641                 self._app.showFavoritesAction.toggled.connect(self._on_show_favorites)
 642
 643                 self._closeWindowAction = QtGui.QAction(None)
 644                 self._closeWindowAction.setText("Close")
 645                 self._closeWindowAction.setShortcut(QtGui.QKeySequence("CTRL+w"))
 646                 self._closeWindowAction.triggered.connect(self._on_close_window)
 647
 648                 if IS_MAEMO:
 649                         fileMenu = self._window.menuBar().addMenu("&Units")
 650                         fileMenu.addAction(self._chooseFavoritesAction)
 651
 652                         viewMenu = self._window.menuBar().addMenu("&View")
 653                         viewMenu.addAction(self._app.showFavoritesAction)
 654                         viewMenu.addSeparator()
 655                         viewMenu.addAction(self._app.jumpAction)
 656                         viewMenu.addAction(self._app.recentAction)
 657
 658                         self._window.addAction(self._closeWindowAction)
 659                         self._window.addAction(self._app.quitAction)
 660                         self._window.addAction(self._app.fullscreenAction)
 661                 else:
 662                         fileMenu = self._window.menuBar().addMenu("&Units")
 663                         fileMenu.addAction(self._chooseFavoritesAction)
 664                         fileMenu.addAction(self._closeWindowAction)
 665                         fileMenu.addAction(self._app.quitAction)
 666
 667                         viewMenu = self._window.menuBar().addMenu("&View")
 668                         viewMenu.addAction(self._app.showFavoritesAction)
 669                         viewMenu.addSeparator()
 670                         viewMenu.addAction(self._app.jumpAction)
 671                         viewMenu.addAction(self._app.recentAction)
 672                         viewMenu.addSeparator()
 673                         viewMenu.addAction(self._app.fullscreenAction)
 674
 675                 self._window.addAction(self._app.logAction)
 676
 677                 self._update_favorites()
 678                 self.set_fullscreen(self._app.fullscreenAction.isChecked())
 679                 self._window.show()
 680
 681         @property
 682         def window(self):
 683                 return self._window
 684
 685         def walk_children(self):
 686                 if self._unitWindow is not None:
 687                         yield self._unitWindow
 688                 if self._favoritesWindow is not None:
 689                         yield self._favoritesWindow
 690
 691         def close(self):
 692                 for child in self.walk_children():
 693                         child.close()
 694                 self._window.close()
 695
 696         def select_category(self, categoryName):
 697                 for child in self.walk_children():
 698                         child.close()
 699                 self._unitWindow = UnitWindow(self._window, categoryName, self._app)
 700                 self._unitWindow.window.destroyed.connect(self._on_child_close)
 701
 702                 i = unit_data.UNIT_CATEGORIES.index(categoryName)
 703                 rootIndex = self._categories.rootIndex()
 704                 currentIndex = self._categories.model().index(i, 0, rootIndex)
 705                 self._categories.scrollTo(currentIndex)
 706                 return self._unitWindow
 707
 708         def set_fullscreen(self, isFullscreen):
 709                 if isFullscreen:
 710                         self._window.showFullScreen()
 711                 else:
 712                         self._window.showNormal()
 713                 for child in self.walk_children():
 714                         child.set_fullscreen(isFullscreen)
 715
 716         def _update_favorites(self):
 717                 if self._app.showFavoritesAction.isChecked():
 718                         assert self._categories.topLevelItemCount() == len(unit_data.UNIT_CATEGORIES)
 719                         for i, catName in enumerate(unit_data.UNIT_CATEGORIES):
 720                                 if catName in self._app.hiddenCategories:
 721                                         self._categories.setRowHidden(i, self._categories.rootIndex(), True)
 722                                 else:
 723                                         self._categories.setRowHidden(i, self._categories.rootIndex(), False)
 724                 else:
 725                         for i in xrange(self._categories.topLevelItemCount()):
 726                                 self._categories.setRowHidden(i, self._categories.rootIndex(), False)
 727
 728         @misc_utils.log_exception(_moduleLogger)
 729         def _on_choose_favorites(self, obj = None):
 730                 assert self._favoritesWindow is None
 731                 self._favoritesWindow = FavoriteCategoriesWindow(
 732                         self._window,
 733                         self._app,
 734                         unit_data.UNIT_CATEGORIES,
 735                         self._app.hiddenCategories
 736                 )
 737                 self._favoritesWindow.window.destroyed.connect(self._on_close_favorites)
 738                 return self._favoritesWindow
 739
 740         @misc_utils.log_exception(_moduleLogger)
 741         def _on_show_favorites(self, checked = True):
 742                 if checked:
 743                         assert self._categories.topLevelItemCount() == len(unit_data.UNIT_CATEGORIES)
 744                         for i, catName in enumerate(unit_data.UNIT_CATEGORIES):
 745                                 if catName in self._app.hiddenCategories:
 746                                         self._categories.setRowHidden(i, self._categories.rootIndex(), True)
 747                 else:
 748                         for i in xrange(self._categories.topLevelItemCount()):
 749                                 self._categories.setRowHidden(i, self._categories.rootIndex(), False)
 750
 751         @misc_utils.log_exception(_moduleLogger)
 752         def _on_close_favorites(self, obj = None):
 753                 self._favoritesWindow = None
 754                 self._update_favorites()
 755
 756         @misc_utils.log_exception(_moduleLogger)
 757         def _on_child_close(self, obj = None):
 758                 self._unitWindow = None
 759
 760         @misc_utils.log_exception(_moduleLogger)
 761         def _on_close_window(self, checked = True):
 762                 self.close()
 763
 764         @misc_utils.log_exception(_moduleLogger)
 765         def _on_category_clicked(self, item, columnIndex):
 766                 categoryName = unicode(item.text(0))
 767                 self.select_category(categoryName)
 768
 769
 770 class UnitData(object):
 771
 772         HEADERS = ["Name", "Value", "", "Unit"]
 773         ALIGNMENT = [QtCore.Qt.AlignLeft, QtCore.Qt.AlignRight, QtCore.Qt.AlignLeft, QtCore.Qt.AlignLeft]
 774         NAME_COLUMN = 0
 775         VALUE_COLUMN_0 = 1
 776         VALUE_COLUMN_1 = 2
 777         UNIT_COLUMN = 3
 778
 779         def __init__(self, name, unit, description, conversion):
 780                 self._name = name
 781                 self._unit = unit
 782                 self._description = description
 783                 self._conversion = conversion
 784
 785                 self._value = 0.0
 786                 self._integerDisplay, self._fractionalDisplay = split_number(self._value)
 787
 788         @property
 789         def name(self):
 790                 return self._name
 791
 792         @property
 793         def value(self):
 794                 return self._value
 795
 796         def update_value(self, newValue):
 797                 self._value = newValue
 798                 self._integerDisplay, self._fractionalDisplay = split_number(newValue)
 799
 800         @property
 801         def unit(self):
 802                 return self._unit
 803
 804         @property
 805         def conversion(self):
 806                 return self._conversion
 807
 808         def data(self, column):
 809                 try:
 810                         return [self._name, self._integerDisplay, self._fractionalDisplay, self._unit][column]
 811                 except IndexError:
 812                         return None
 813
 814
 815 class UnitModel(QtCore.QAbstractItemModel):
 816
 817         def __init__(self, categoryName, parent=None):
 818                 super(UnitModel, self).__init__(parent)
 819                 self._categoryName = categoryName
 820                 self._unitData = unit_data.UNIT_DESCRIPTIONS[self._categoryName]
 821
 822                 self._children = []
 823                 for key in unit_data.get_units(self._categoryName):
 824                         conversion, unit, description = self._unitData[key]
 825                         self._children.append(UnitData(key, unit, description, conversion))
 826                 self._sortSettings = None
 827
 828         @misc_utils.log_exception(_moduleLogger)
 829         def columnCount(self, parent):
 830                 if parent.isValid():
 831                         return 0
 832                 else:
 833                         return len(UnitData.HEADERS)
 834
 835         @misc_utils.log_exception(_moduleLogger)
 836         def data(self, index, role):
 837                 if not index.isValid():
 838                         return None
 839                 elif role == QtCore.Qt.TextAlignmentRole:
 840                         return UnitData.ALIGNMENT[index.column()]
 841                 elif role != QtCore.Qt.DisplayRole:
 842                         return None
 843
 844                 item = index.internalPointer()
 845                 if isinstance(item, UnitData):
 846                         return item.data(index.column())
 847                 elif item is UnitData.HEADERS:
 848                         return item[index.column()]
 849
 850         @misc_utils.log_exception(_moduleLogger)
 851         def sort(self, column, order = QtCore.Qt.AscendingOrder):
 852                 self._sortSettings = column, order
 853                 isReverse = order == QtCore.Qt.AscendingOrder
 854                 if column == UnitData.NAME_COLUMN:
 855                         key_func = lambda item: item.name
 856                 elif column in [UnitData.VALUE_COLUMN_0, UnitData.VALUE_COLUMN_1]:
 857                         key_func = lambda item: item.value
 858                 elif column == UnitData.UNIT_COLUMN:
 859                         key_func = lambda item: item.unit
 860                 self._children.sort(key=key_func, reverse = isReverse)
 861
 862                 self._all_changed()
 863
 864         @misc_utils.log_exception(_moduleLogger)
 865         def flags(self, index):
 866                 if not index.isValid():
 867                         return QtCore.Qt.NoItemFlags
 868
 869                 return QtCore.Qt.ItemIsEnabled | QtCore.Qt.ItemIsSelectable
 870
 871         @misc_utils.log_exception(_moduleLogger)
 872         def headerData(self, section, orientation, role):
 873                 if orientation == QtCore.Qt.Horizontal and role == QtCore.Qt.DisplayRole:
 874                         return UnitData.HEADERS[section]
 875
 876                 return None
 877
 878         @misc_utils.log_exception(_moduleLogger)
 879         def index(self, row, column, parent):
 880                 if not self.hasIndex(row, column, parent):
 881                         return QtCore.QModelIndex()
 882
 883                 if parent.isValid():
 884                         return QtCore.QModelIndex()
 885
 886                 parentItem = UnitData.HEADERS
 887                 childItem = self._children[row]
 888                 if childItem:
 889                         return self.createIndex(row, column, childItem)
 890                 else:
 891                         return QtCore.QModelIndex()
 892
 893         @misc_utils.log_exception(_moduleLogger)
 894         def parent(self, index):
 895                 if not index.isValid():
 896                         return QtCore.QModelIndex()
 897
 898                 childItem = index.internalPointer()
 899                 if isinstance(childItem, UnitData):
 900                         return QtCore.QModelIndex()
 901                 elif childItem is UnitData.HEADERS:
 902                         return None
 903
 904         @misc_utils.log_exception(_moduleLogger)
 905         def rowCount(self, parent):
 906                 if 0 < parent.column():
 907                         return 0
 908
 909                 if not parent.isValid():
 910                         return len(self._children)
 911                 else:
 912                         return len(self._children)
 913
 914         def get_unit(self, index):
 915                 assert 0 <= index
 916                 return self._children[index]
 917
 918         def get_unit_names(self):
 919                 for child in self._children:
 920                         yield child.name
 921
 922         def index_unit(self, unitName):
 923                 for i, child in enumerate(self._children):
 924                         if child.name == unitName:
 925                                 return i
 926                 else:
 927                         raise RuntimeError("Unit not found")
 928
 929         def update_values(self, fromIndex, userInput):
 930                 value = self._sanitize_value(userInput)
 931                 func, arg = self._children[fromIndex].conversion
 932                 base = func.to_base(value, arg)
 933                 for i, child in enumerate(self._children):
 934                         if i == fromIndex:
 935                                 continue
 936                         func, arg = child.conversion
 937                         newValue = func.from_base(base, arg)
 938                         child.update_value(newValue)
 939
 940                 if (
 941                         self._sortSettings is not None and
 942                         self._sortSettings[0]  in [UnitData.VALUE_COLUMN_0, UnitData.VALUE_COLUMN_1]
 943                 ):
 944                         self.sort(*self._sortSettings)
 945                         self._all_changed()
 946                 else:
 947                         self._values_changed()
 948
 949         def __len__(self):
 950                 return len(self._children)
 951
 952         def _values_changed(self):
 953                 topLeft = self.createIndex(0, UnitData.VALUE_COLUMN_0, self._children[0])
 954                 bottomRight = self.createIndex(len(self._children)-1, UnitData.VALUE_COLUMN_1, self._children[-1])
 955                 self.dataChanged.emit(topLeft, bottomRight)
 956
 957         def _all_changed(self):
 958                 topLeft = self.createIndex(0, 0, self._children[0])
 959                 bottomRight = self.createIndex(len(self._children)-1, len(UnitData.HEADERS)-1, self._children[-1])
 960                 self.dataChanged.emit(topLeft, bottomRight)
 961
 962         def _sanitize_value(self, userEntry):
 963                 if self._categoryName == "Computer Numbers":
 964                         if userEntry == '':
 965                                 value = '0'
 966                         else:
 967                                 value = userEntry
 968                 else:
 969                         if userEntry == '':
 970                                 value = 0.0
 971                         else:
 972                                 value = float(userEntry)
 973                 return value
 974
 975
 976 class UnitWindow(object):
 977
 978         def __init__(self, parent, category, app):
 979                 self._app = app
 980                 self._categoryName = category
 981                 self._selectedIndex = 0
 982                 self._favoritesWindow = None
 983
 984                 self._selectedUnitName = QtGui.QLabel()
 985                 self._selectedUnitValue = QtGui.QLineEdit()
 986                 self._selectedUnitValue.textEdited.connect(self._on_value_edited)
 987                 maeqt.mark_numbers_preferred(self._selectedUnitValue)
 988                 self._selectedUnitSymbol = QtGui.QLabel()
 989
 990                 self._selectedUnitLayout = QtGui.QHBoxLayout()
 991                 self._selectedUnitLayout.addWidget(self._selectedUnitName)
 992                 self._selectedUnitLayout.addWidget(self._selectedUnitValue)
 993                 self._selectedUnitLayout.addWidget(self._selectedUnitSymbol)
 994
 995                 self._unitsModel = UnitModel(self._categoryName)
 996                 self._unitsView = QtGui.QTreeView()
 997                 self._unitsView.setModel(self._unitsModel)
 998                 self._unitsView.clicked.connect(self._on_unit_clicked)
 999                 self._unitsView.setUniformRowHeights(True)
1000                 self._unitsView.setSortingEnabled(True)
1001                 self._unitsView.setTextElideMode(QtCore.Qt.ElideNone)
1002                 self._unitsView.setHorizontalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
1003                 if not IS_MAEMO:
1004                         self._unitsView.setAlternatingRowColors(True)
1005                 if True:
1006                         self._unitsView.setHeaderHidden(True)
1007
1008                 viewHeader = self._unitsView.header()
1009                 viewHeader.setSortIndicatorShown(True)
1010                 viewHeader.setClickable(True)
1011
1012                 viewHeader.setResizeMode(UnitData.NAME_COLUMN, QtGui.QHeaderView.ResizeToContents)
1013                 viewHeader.setResizeMode(UnitData.VALUE_COLUMN_0, QtGui.QHeaderView.ResizeToContents)
1014                 viewHeader.setResizeMode(UnitData.VALUE_COLUMN_1, QtGui.QHeaderView.ResizeToContents)
1015                 viewHeader.setResizeMode(UnitData.UNIT_COLUMN, QtGui.QHeaderView.ResizeToContents)
1016                 viewHeader.setStretchLastSection(False)
1017
1018                 # Trying to make things faster by locking in the initial size of the immutable columns
1019                 nameSize = viewHeader.sectionSize(UnitData.NAME_COLUMN)
1020                 viewHeader.setResizeMode(UnitData.NAME_COLUMN, QtGui.QHeaderView.Fixed)
1021                 viewHeader.resizeSection(UnitData.NAME_COLUMN, nameSize)
1022                 unitSize = viewHeader.sectionSize(UnitData.UNIT_COLUMN)
1023                 viewHeader.setResizeMode(UnitData.UNIT_COLUMN, QtGui.QHeaderView.Fixed)
1024                 viewHeader.resizeSection(UnitData.UNIT_COLUMN, unitSize)
1025
1026                 self._layout = QtGui.QVBoxLayout()
1027                 self._layout.addLayout(self._selectedUnitLayout)
1028                 self._layout.addWidget(self._unitsView)
1029
1030                 centralWidget = QtGui.QWidget()
1031                 centralWidget.setLayout(self._layout)
1032
1033                 self._window = QtGui.QMainWindow(parent)
1034                 self._window.setAttribute(QtCore.Qt.WA_DeleteOnClose, True)
1035                 maeqt.set_autorient(self._window, True)
1036                 maeqt.set_stackable(self._window, True)
1037                 if parent is not None:
1038                         self._window.setWindowModality(QtCore.Qt.WindowModal)
1039                 self._window.setWindowTitle("%s - %s" % (constants.__pretty_app_name__, category))
1040                 self._window.setWindowIcon(QtGui.QIcon(app.appIconPath))
1041                 self._window.setCentralWidget(centralWidget)
1042
1043                 defaultUnitName = self._app.get_recent_unit(self._categoryName)
1044                 if defaultUnitName:
1045                         self.select_unit(defaultUnitName)
1046                 else:
1047                         self._select_unit(0)
1048                 self._unitsModel.sort(UnitData.NAME_COLUMN)
1049
1050                 self._sortActionGroup = QtGui.QActionGroup(None)
1051                 self._sortByNameAction = QtGui.QAction(self._sortActionGroup)
1052                 self._sortByNameAction.setText("Sort By Name")
1053                 self._sortByNameAction.setStatusTip("Sort the units by name")
1054                 self._sortByNameAction.setToolTip("Sort the units by name")
1055                 self._sortByNameAction.setCheckable(True)
1056                 self._sortByValueAction = QtGui.QAction(self._sortActionGroup)
1057                 self._sortByValueAction.setText("Sort By Value")
1058                 self._sortByValueAction.setStatusTip("Sort the units by value")
1059                 self._sortByValueAction.setToolTip("Sort the units by value")
1060                 self._sortByValueAction.setCheckable(True)
1061                 self._sortByUnitAction = QtGui.QAction(self._sortActionGroup)
1062                 self._sortByUnitAction.setText("Sort By Unit")
1063                 self._sortByUnitAction.setStatusTip("Sort the units by unit")
1064                 self._sortByUnitAction.setToolTip("Sort the units by unit")
1065                 self._sortByUnitAction.setCheckable(True)
1066
1067                 self._sortByValueAction.setChecked(True)
1068
1069                 self._chooseFavoritesAction = QtGui.QAction(None)
1070                 self._chooseFavoritesAction.setText("Select Favorites")
1071                 self._chooseFavoritesAction.setShortcut(QtGui.QKeySequence("CTRL+f"))
1072                 self._chooseFavoritesAction.triggered.connect(self._on_choose_favorites)
1073
1074                 self._app.showFavoritesAction.toggled.connect(self._on_show_favorites)
1075
1076                 self._previousUnitAction = QtGui.QAction(None)
1077                 self._previousUnitAction.setText("Previous Unit")
1078                 self._previousUnitAction.setShortcut(QtGui.QKeySequence("Up"))
1079                 self._previousUnitAction.triggered.connect(self._on_previous_unit)
1080
1081                 self._nextUnitAction = QtGui.QAction(None)
1082                 self._nextUnitAction.setText("Next Unit")
1083                 self._nextUnitAction.setShortcut(QtGui.QKeySequence("Down"))
1084                 self._nextUnitAction.triggered.connect(self._on_next_unit)
1085
1086                 self._closeWindowAction = QtGui.QAction(None)
1087                 self._closeWindowAction.setText("Close Window")
1088                 self._closeWindowAction.setShortcut(QtGui.QKeySequence("CTRL+w"))
1089                 self._closeWindowAction.triggered.connect(self._on_close_window)
1090
1091                 if IS_MAEMO:
1092                         self._window.addAction(self._closeWindowAction)
1093                         self._window.addAction(self._app.quitAction)
1094                         self._window.addAction(self._app.fullscreenAction)
1095
1096                         fileMenu = self._window.menuBar().addMenu("&Units")
1097                         fileMenu.addAction(self._chooseFavoritesAction)
1098
1099                         viewMenu = self._window.menuBar().addMenu("&View")
1100                         viewMenu.addAction(self._app.showFavoritesAction)
1101                         viewMenu.addSeparator()
1102                         viewMenu.addAction(self._sortByNameAction)
1103                         viewMenu.addAction(self._sortByValueAction)
1104                         viewMenu.addAction(self._sortByUnitAction)
1105                         viewMenu.addSeparator()
1106                         viewMenu.addAction(self._app.jumpAction)
1107                         viewMenu.addAction(self._app.recentAction)
1108                 else:
1109                         fileMenu = self._window.menuBar().addMenu("&Units")
1110                         fileMenu.addAction(self._chooseFavoritesAction)
1111                         fileMenu.addAction(self._closeWindowAction)
1112                         fileMenu.addAction(self._app.quitAction)
1113
1114                         viewMenu = self._window.menuBar().addMenu("&View")
1115                         viewMenu.addAction(self._app.showFavoritesAction)
1116                         viewMenu.addSeparator()
1117                         viewMenu.addAction(self._sortByNameAction)
1118                         viewMenu.addAction(self._sortByValueAction)
1119                         viewMenu.addAction(self._sortByUnitAction)
1120                         viewMenu.addSeparator()
1121                         viewMenu.addAction(self._app.jumpAction)
1122                         viewMenu.addAction(self._app.recentAction)
1123                         viewMenu.addSeparator()
1124                         viewMenu.addAction(self._app.fullscreenAction)
1125
1126                 self._sortByNameAction.triggered.connect(self._on_sort_by_name)
1127                 self._sortByValueAction.triggered.connect(self._on_sort_by_value)
1128                 self._sortByUnitAction.triggered.connect(self._on_sort_by_unit)
1129
1130                 self._window.addAction(self._app.logAction)
1131                 self._window.addAction(self._nextUnitAction)
1132                 self._window.addAction(self._previousUnitAction)
1133                 self._window.addAction(self._chooseFavoritesAction)
1134
1135                 self._update_favorites()
1136                 self.set_fullscreen(self._app.fullscreenAction.isChecked())
1137                 self._window.show()
1138
1139         @property
1140         def window(self):
1141                 return self._window
1142
1143         def close(self):
1144                 for child in self.walk_children():
1145                         child.close()
1146                 self._window.close()
1147
1148         def set_fullscreen(self, isFullscreen):
1149                 if isFullscreen:
1150                         self._window.showFullScreen()
1151                 else:
1152                         self._window.showNormal()
1153
1154         def select_unit(self, unitName):
1155                 index = self._unitsModel.index_unit(unitName)
1156                 self._select_unit(index)
1157
1158         def walk_children(self):
1159                 if self._favoritesWindow is not None:
1160                         yield self._favoritesWindow
1161
1162         def _update_favorites(self, force = False):
1163                 if self._app.showFavoritesAction.isChecked():
1164                         unitNames = list(self._unitsModel.get_unit_names())
1165                         for i, unitName in enumerate(unitNames):
1166                                 if unitName in self._app.get_hidden_units(self._categoryName):
1167                                         self._unitsView.setRowHidden(i, self._unitsView.rootIndex(), True)
1168                                 else:
1169                                         self._unitsView.setRowHidden(i, self._unitsView.rootIndex(), False)
1170                 else:
1171                         if force:
1172                                 for i in xrange(len(self._unitsModel)):
1173                                         self._unitsView.setRowHidden(i, self._unitsView.rootIndex(), False)
1174
1175         @misc_utils.log_exception(_moduleLogger)
1176         def _on_choose_favorites(self, obj = None):
1177                 assert self._favoritesWindow is None
1178                 self._favoritesWindow = FavoriteCategoriesWindow(
1179                         self._window,
1180                         self._app,
1181                         unit_data.get_units(self._categoryName),
1182                         self._app.get_hidden_units(self._categoryName)
1183                 )
1184                 self._favoritesWindow.window.destroyed.connect(self._on_close_favorites)
1185                 return self._favoritesWindow
1186
1187         @misc_utils.log_exception(_moduleLogger)
1188         def _on_show_favorites(self, checked = True):
1189                 if checked:
1190                         unitNames = list(self._unitsModel.get_unit_names())
1191                         for i, unitName in enumerate(unitNames):
1192                                 if unitName in self._app.get_hidden_units(self._categoryName):
1193                                         self._unitsView.setRowHidden(i, self._unitsView.rootIndex(), True)
1194                 else:
1195                         for i in xrange(len(self._unitsModel)):
1196                                 self._unitsView.setRowHidden(i, self._unitsView.rootIndex(), False)
1197
1198         @misc_utils.log_exception(_moduleLogger)
1199         def _on_close_favorites(self, obj = None):
1200                 self._favoritesWindow = None
1201                 self._update_favorites(force=True)
1202
1203         @misc_utils.log_exception(_moduleLogger)
1204         def _on_previous_unit(self, checked = True):
1205                 self._select_unit(self._selectedIndex - 1)
1206
1207         @misc_utils.log_exception(_moduleLogger)
1208         def _on_next_unit(self, checked = True):
1209                 self._select_unit(self._selectedIndex + 1)
1210
1211         @misc_utils.log_exception(_moduleLogger)
1212         def _on_close_window(self, checked = True):
1213                 self.close()
1214
1215         @misc_utils.log_exception(_moduleLogger)
1216         def _on_sort_by_name(self, checked = False):
1217                 self._unitsModel.sort(UnitData.NAME_COLUMN, QtCore.Qt.DescendingOrder)
1218
1219         @misc_utils.log_exception(_moduleLogger)
1220         def _on_sort_by_value(self, checked = False):
1221                 self._unitsModel.sort(UnitData.VALUE_COLUMN_0)
1222
1223         @misc_utils.log_exception(_moduleLogger)
1224         def _on_sort_by_unit(self, checked = False):
1225                 self._unitsModel.sort(UnitData.UNIT_COLUMN, QtCore.Qt.DescendingOrder)
1226
1227         @misc_utils.log_exception(_moduleLogger)
1228         def _on_unit_clicked(self, index):
1229                 self._select_unit(index.row())
1230
1231         @misc_utils.log_exception(_moduleLogger)
1232         def _on_value_edited(self, *args):
1233                 userInput = self._selectedUnitValue.text()
1234                 self._unitsModel.update_values(self._selectedIndex, str(userInput))
1235                 self._update_favorites()
1236
1237         def _select_unit(self, index):
1238                 unit = self._unitsModel.get_unit(index)
1239                 self._selectedUnitName.setText(unit.name)
1240                 self._selectedUnitValue.setText(str(unit.value))
1241                 self._selectedUnitSymbol.setText(unit.unit)
1242
1243                 self._selectedIndex = index
1244                 qindex = self._unitsModel.createIndex(index, 0, self._unitsModel.get_unit(index))
1245                 self._unitsView.scrollTo(qindex)
1246                 self._app.add_recent(self._categoryName, self._unitsModel.get_unit(index).name)
1247
1248
1249 def run_gonvert():
1250         app = QtGui.QApplication([])
1251         handle = Gonvert(app)
1252         return app.exec_()
1253
1254
1255 if __name__ == "__main__":
1256         logging.basicConfig(level = logging.DEBUG)
1257         try:
1258                 os.makedirs(constants._data_path_)
1259         except OSError, e:
1260                 if e.errno != 17:
1261                         raise
1262
1263         val = run_gonvert()
1264         sys.exit(val)