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._condensedAction = QtGui.QAction(None)
  88                 self._condensedAction.setText("Condensed View")
  89                 self._condensedAction.setCheckable(True)
  90                 self._condensedAction.triggered.connect(self._on_condensed_start)
  91
  92                 self._jumpAction = QtGui.QAction(None)
  93                 self._jumpAction.setText("Quick Jump")
  94                 self._jumpAction.setStatusTip("Search for a unit and jump straight to it")
  95                 self._jumpAction.setToolTip("Search for a unit and jump straight to it")
  96                 self._jumpAction.setShortcut(QtGui.QKeySequence("CTRL+j"))
  97                 self._jumpAction.triggered.connect(self._on_jump_start)
  98
  99                 self._recentAction = QtGui.QAction(None)
 100                 self._recentAction.setText("Recent Units")
 101                 self._recentAction.setStatusTip("View the recent units")
 102                 self._recentAction.setToolTip("View the recent units")
 103                 self._recentAction.setShortcut(QtGui.QKeySequence("CTRL+r"))
 104                 self._recentAction.triggered.connect(self._on_recent_start)
 105
 106                 self._fullscreenAction = QtGui.QAction(None)
 107                 self._fullscreenAction.setText("Fullscreen")
 108                 self._fullscreenAction.setCheckable(True)
 109                 self._fullscreenAction.setShortcut(QtGui.QKeySequence("CTRL+Enter"))
 110                 self._fullscreenAction.toggled.connect(self._on_toggle_fullscreen)
 111
 112                 self._showFavoritesAction = QtGui.QAction(None)
 113                 self._showFavoritesAction.setCheckable(True)
 114                 self._showFavoritesAction.setText("Favorites Only")
 115
 116                 self._logAction = QtGui.QAction(None)
 117                 self._logAction.setText("Log")
 118                 self._logAction.setShortcut(QtGui.QKeySequence("CTRL+l"))
 119                 self._logAction.triggered.connect(self._on_log)
 120
 121                 self._quitAction = QtGui.QAction(None)
 122                 self._quitAction.setText("Quit")
 123                 self._quitAction.setShortcut(QtGui.QKeySequence("CTRL+q"))
 124                 self._quitAction.triggered.connect(self._on_quit)
 125
 126                 self._app.lastWindowClosed.connect(self._on_app_quit)
 127                 self.load_settings()
 128
 129                 self.request_category()
 130                 if self._recent:
 131                         self._catWindow.select_category(self._recent[-1][0])
 132
 133         def request_category(self):
 134                 if self._catWindow is not None:
 135                         self._catWindow.close()
 136                         self._catWindow = None
 137                 if self._condensedAction.isChecked():
 138                         self._catWindow = QuickConvert(None, self)
 139                         self._catWindow.window.destroyed.connect(lambda obj = None: self._on_child_close("_catWindow", obj))
 140                 else:
 141                         self._catWindow = CategoryWindow(None, self)
 142                         self._catWindow.window.destroyed.connect(lambda obj = None: self._on_child_close("_catWindow", obj))
 143                 return self._catWindow
 144
 145         def search_units(self):
 146                 self._close_windows()
 147                 self._jumpWindow = QuickJump(None, self)
 148                 self._jumpWindow.window.destroyed.connect(lambda obj = None: self._on_child_close("_jumpWindow", obj))
 149                 return self._jumpWindow
 150
 151         def show_recent(self):
 152                 self._close_windows()
 153                 self._recentWindow = Recent(None, self)
 154                 self._recentWindow.window.destroyed.connect(lambda obj = None: self._on_child_close("_recentWindow", obj))
 155                 return self._recentWindow
 156
 157         def add_recent(self, categoryName, unitName):
 158                 catUnit = categoryName, unitName
 159                 try:
 160                         self._recent.remove(catUnit)
 161                 except ValueError:
 162                         pass # ignore if its not already in the recent history
 163                 assert catUnit not in self._recent
 164                 self._recent.append(catUnit)
 165
 166         def get_recent_unit(self, categoryName, fromMostRecent = 0):
 167                 recentUnitName = ""
 168                 for catName, unitName in reversed(self._recent):
 169                         if catName == categoryName:
 170                                 recentUnitName = unitName
 171                                 if fromMostRecent <= 0:
 172                                         break
 173                                 else:
 174                                         fromMostRecent -= 1
 175                 return recentUnitName
 176
 177         def get_recent(self):
 178                 return reversed(self._recent)
 179
 180         @property
 181         def hiddenCategories(self):
 182                 return self._hiddenCategories
 183
 184         def get_hidden_units(self, categoryName):
 185                 try:
 186                         return self._hiddenUnits[categoryName]
 187                 except KeyError:
 188                         self._hiddenUnits[categoryName] = set()
 189                         return self._hiddenUnits[categoryName]
 190
 191         def load_settings(self):
 192                 try:
 193                         with open(constants._user_settings_, "r") as settingsFile:
 194                                 settings = simplejson.load(settingsFile)
 195                 except IOError, e:
 196                         _moduleLogger.info("No settings")
 197                         settings = {}
 198                 except ValueError:
 199                         _moduleLogger.info("Settings were corrupt")
 200                         settings = {}
 201
 202                 self._fullscreenAction.setChecked(settings.get("isFullScreen", False))
 203
 204                 recent = settings.get("recent", self._recent)
 205                 for category, unit in recent:
 206                         self.add_recent(category, unit)
 207
 208                 self._hiddenCategories = set(settings.get("hiddenCategories", set()))
 209                 self._hiddenUnits = dict(
 210                         (catName, set(units))
 211                         for (catName, units) in settings.get("hiddenUnits", {}).iteritems()
 212                 )
 213
 214                 self._showFavoritesAction.setChecked(settings.get("showFavorites", True))
 215
 216                 self._condensedAction.setChecked(settings.get("useQuick", self._condensedAction.isChecked()))
 217
 218         def save_settings(self):
 219                 settings = {
 220                         "isFullScreen": self._fullscreenAction.isChecked(),
 221                         "recent": self._recent,
 222                         "hiddenCategories": list(self._hiddenCategories),
 223                         "hiddenUnits": dict(
 224                                 (catName, list(units))
 225                                 for (catName, units) in self._hiddenUnits.iteritems()
 226                         ),
 227                         "showFavorites": self._showFavoritesAction.isChecked(),
 228                         "useQuick": self._condensedAction.isChecked(),
 229                 }
 230                 with open(constants._user_settings_, "w") as settingsFile:
 231                         simplejson.dump(settings, settingsFile)
 232
 233         @property
 234         def appIconPath(self):
 235                 return self._appIconPath
 236
 237         @property
 238         def jumpAction(self):
 239                 return self._jumpAction
 240
 241         @property
 242         def recentAction(self):
 243                 return self._recentAction
 244
 245         @property
 246         def fullscreenAction(self):
 247                 return self._fullscreenAction
 248
 249         @property
 250         def condensedAction(self):
 251                 return self._condensedAction
 252
 253         @property
 254         def logAction(self):
 255                 return self._logAction
 256
 257         @property
 258         def quitAction(self):
 259                 return self._quitAction
 260
 261         @property
 262         def showFavoritesAction(self):
 263                 return self._showFavoritesAction
 264
 265         def _walk_children(self):
 266                 if self._catWindow is not None:
 267                         yield self._catWindow
 268                 if self._jumpWindow is not None:
 269                         yield self._jumpWindow
 270                 if self._recentWindow is not None:
 271                         yield self._recentWindow
 272
 273         def _close_windows(self):
 274                 for window in self._walk_children():
 275                         window.close()
 276                 self._catWindow = None
 277                 self._jumpWindow = None
 278                 self._recentWindow = None
 279
 280         @misc_utils.log_exception(_moduleLogger)
 281         def _on_app_quit(self, checked = False):
 282                 self.save_settings()
 283
 284         @misc_utils.log_exception(_moduleLogger)
 285         def _on_child_close(self, name, obj = None):
 286                 if not hasattr(self, name):
 287                         _moduleLogger.info("Something weird going on when we don't have a %s" % name)
 288                         return
 289                 setattr(self, name, None)
 290
 291         @misc_utils.log_exception(_moduleLogger)
 292         def _on_toggle_fullscreen(self, checked = False):
 293                 for window in self._walk_children():
 294                         window.set_fullscreen(checked)
 295
 296         @misc_utils.log_exception(_moduleLogger)
 297         def _on_condensed_start(self, checked = False):
 298                 self.request_category()
 299
 300         @misc_utils.log_exception(_moduleLogger)
 301         def _on_jump_start(self, checked = False):
 302                 self.search_units()
 303
 304         @misc_utils.log_exception(_moduleLogger)
 305         def _on_recent_start(self, checked = False):
 306                 self.show_recent()
 307
 308         @misc_utils.log_exception(_moduleLogger)
 309         def _on_log(self, checked = False):
 310                 with open(constants._user_logpath_, "r") as f:
 311                         logLines = f.xreadlines()
 312                         log = "".join(logLines)
 313                         self._clipboard.setText(log)
 314
 315         @misc_utils.log_exception(_moduleLogger)
 316         def _on_quit(self, checked = False):
 317                 self._close_windows()
 318
 319
 320 class QuickJump(object):
 321
 322         MINIMAL_ENTRY = 3
 323
 324         def __init__(self, parent, app):
 325                 self._app = app
 326
 327                 self._searchLabel = QtGui.QLabel("Search:")
 328                 self._searchEntry = QtGui.QLineEdit("")
 329                 self._searchEntry.textEdited.connect(self._on_search_edited)
 330
 331                 self._entryLayout = QtGui.QHBoxLayout()
 332                 self._entryLayout.addWidget(self._searchLabel)
 333                 self._entryLayout.addWidget(self._searchEntry)
 334
 335                 self._resultsBox = QtGui.QTreeWidget()
 336                 self._resultsBox.setHeaderLabels(["Categories", "Units"])
 337                 self._resultsBox.setHeaderHidden(True)
 338                 if not IS_MAEMO:
 339                         self._resultsBox.setAlternatingRowColors(True)
 340                 self._resultsBox.itemClicked.connect(self._on_result_clicked)
 341
 342                 self._layout = QtGui.QVBoxLayout()
 343                 self._layout.addLayout(self._entryLayout)
 344                 self._layout.addWidget(self._resultsBox)
 345
 346                 centralWidget = QtGui.QWidget()
 347                 centralWidget.setLayout(self._layout)
 348
 349                 self._window = QtGui.QMainWindow(parent)
 350                 self._window.setAttribute(QtCore.Qt.WA_DeleteOnClose, True)
 351                 maeqt.set_autorient(self._window, True)
 352                 maeqt.set_stackable(self._window, True)
 353                 if parent is not None:
 354                         self._window.setWindowModality(QtCore.Qt.WindowModal)
 355                 self._window.setWindowTitle("%s - Quick Jump" % constants.__pretty_app_name__)
 356                 self._window.setWindowIcon(QtGui.QIcon(self._app.appIconPath))
 357                 self._window.setCentralWidget(centralWidget)
 358
 359                 self._closeWindowAction = QtGui.QAction(None)
 360                 self._closeWindowAction.setText("Close")
 361                 self._closeWindowAction.setShortcut(QtGui.QKeySequence("CTRL+w"))
 362                 self._closeWindowAction.triggered.connect(self._on_close_window)
 363
 364                 if IS_MAEMO:
 365                         self._window.addAction(self._closeWindowAction)
 366                         self._window.addAction(self._app.quitAction)
 367                         self._window.addAction(self._app.fullscreenAction)
 368                 else:
 369                         fileMenu = self._window.menuBar().addMenu("&Units")
 370                         fileMenu.addAction(self._closeWindowAction)
 371                         fileMenu.addAction(self._app.quitAction)
 372
 373                         viewMenu = self._window.menuBar().addMenu("&View")
 374                         viewMenu.addAction(self._app.fullscreenAction)
 375
 376                 self._window.addAction(self._app.logAction)
 377
 378                 self.set_fullscreen(self._app.fullscreenAction.isChecked())
 379                 self._window.show()
 380
 381         @property
 382         def window(self):
 383                 return self._window
 384
 385         def close(self):
 386                 self._window.close()
 387
 388         def set_fullscreen(self, isFullscreen):
 389                 if isFullscreen:
 390                         self._window.showFullScreen()
 391                 else:
 392                         self._window.showNormal()
 393
 394         @misc_utils.log_exception(_moduleLogger)
 395         def _on_close_window(self, checked = True):
 396                 self.close()
 397
 398         @misc_utils.log_exception(_moduleLogger)
 399         def _on_result_clicked(self, item, columnIndex):
 400                 categoryName = unicode(item.text(0))
 401                 unitName = unicode(item.text(1))
 402                 catWindow = self._app.request_category()
 403                 unitsWindow = catWindow.select_category(categoryName)
 404                 unitsWindow.select_unit(unitName)
 405                 self.close()
 406
 407         @misc_utils.log_exception(_moduleLogger)
 408         def _on_search_edited(self, *args):
 409                 userInput = self._searchEntry.text()
 410                 if len(userInput) <  self.MINIMAL_ENTRY:
 411                         return
 412
 413                 self._resultsBox.clear()
 414                 lowerInput = str(userInput).lower()
 415                 for catIndex, category in enumerate(unit_data.UNIT_CATEGORIES):
 416                         units = unit_data.get_units(category)
 417                         for unitIndex, unit in enumerate(units):
 418                                 loweredUnit = unit.lower()
 419                                 if lowerInput in loweredUnit:
 420                                         twi = QtGui.QTreeWidgetItem(self._resultsBox)
 421                                         twi.setText(0, category)
 422                                         twi.setText(1, unit)
 423
 424
 425 class Recent(object):
 426
 427         def __init__(self, parent, app):
 428                 self._app = app
 429
 430                 self._resultsBox = QtGui.QTreeWidget()
 431                 self._resultsBox.setHeaderLabels(["Categories", "Units"])
 432                 self._resultsBox.setHeaderHidden(True)
 433                 if not IS_MAEMO:
 434                         self._resultsBox.setAlternatingRowColors(True)
 435                 self._resultsBox.itemClicked.connect(self._on_result_clicked)
 436
 437                 self._layout = QtGui.QVBoxLayout()
 438                 self._layout.addWidget(self._resultsBox)
 439
 440                 centralWidget = QtGui.QWidget()
 441                 centralWidget.setLayout(self._layout)
 442
 443                 self._window = QtGui.QMainWindow(parent)
 444                 self._window.setAttribute(QtCore.Qt.WA_DeleteOnClose, True)
 445                 maeqt.set_autorient(self._window, True)
 446                 maeqt.set_stackable(self._window, True)
 447                 if parent is not None:
 448                         self._window.setWindowModality(QtCore.Qt.WindowModal)
 449                 self._window.setWindowTitle("%s - Recent" % constants.__pretty_app_name__)
 450                 self._window.setWindowIcon(QtGui.QIcon(self._app.appIconPath))
 451                 self._window.setCentralWidget(centralWidget)
 452
 453                 for cat, unit in self._app.get_recent():
 454                         twi = QtGui.QTreeWidgetItem(self._resultsBox)
 455                         twi.setText(0, cat)
 456                         twi.setText(1, unit)
 457
 458                 self._closeWindowAction = QtGui.QAction(None)
 459                 self._closeWindowAction.setText("Close")
 460                 self._closeWindowAction.setShortcut(QtGui.QKeySequence("CTRL+w"))
 461                 self._closeWindowAction.triggered.connect(self._on_close_window)
 462
 463                 if IS_MAEMO:
 464                         self._window.addAction(self._closeWindowAction)
 465                         self._window.addAction(self._app.quitAction)
 466                         self._window.addAction(self._app.fullscreenAction)
 467                 else:
 468                         fileMenu = self._window.menuBar().addMenu("&Units")
 469                         fileMenu.addAction(self._closeWindowAction)
 470                         fileMenu.addAction(self._app.quitAction)
 471
 472                         viewMenu = self._window.menuBar().addMenu("&View")
 473                         viewMenu.addAction(self._app.fullscreenAction)
 474
 475                 self._window.addAction(self._app.logAction)
 476
 477                 self.set_fullscreen(self._app.fullscreenAction.isChecked())
 478                 self._window.show()
 479
 480         @property
 481         def window(self):
 482                 return self._window
 483
 484         def close(self):
 485                 self._window.close()
 486
 487         def set_fullscreen(self, isFullscreen):
 488                 if isFullscreen:
 489                         self._window.showFullScreen()
 490                 else:
 491                         self._window.showNormal()
 492
 493         @misc_utils.log_exception(_moduleLogger)
 494         def _on_close_window(self, checked = True):
 495                 self.close()
 496
 497         @misc_utils.log_exception(_moduleLogger)
 498         def _on_result_clicked(self, item, columnIndex):
 499                 categoryName = unicode(item.text(0))
 500                 unitName = unicode(item.text(1))
 501                 catWindow = self._app.request_category()
 502                 unitsWindow = catWindow.select_category(categoryName)
 503                 unitsWindow.select_unit(unitName)
 504                 self.close()
 505
 506
 507 class QuickConvert(object):
 508
 509         def __init__(self, parent, app):
 510                 self._app = app
 511                 self._categoryName = ""
 512                 self._inputUnitName = ""
 513                 self._outputUnitName = ""
 514                 self._unitNames = []
 515                 self._favoritesWindow = None
 516
 517                 self._inputUnitValue = QtGui.QLineEdit()
 518                 self._inputUnitValue.setInputMethodHints(QtCore.Qt.ImhPreferNumbers)
 519                 self._inputUnitValue.textEdited.connect(self._on_value_edited)
 520                 self._inputUnitSymbol = QtGui.QLabel()
 521
 522                 self._outputUnitValue = QtGui.QLabel()
 523                 self._outputUnitSymbol = QtGui.QLabel()
 524
 525                 self._conversionLayout = QtGui.QHBoxLayout()
 526                 self._conversionLayout.addWidget(self._inputUnitValue)
 527                 self._conversionLayout.addWidget(self._inputUnitSymbol)
 528                 self._conversionLayout.addWidget(self._outputUnitValue)
 529                 self._conversionLayout.addWidget(self._outputUnitSymbol)
 530
 531                 self._categoryView = QtGui.QTreeWidget()
 532                 self._categoryView.setHeaderLabels(["Categories"])
 533                 self._categoryView.setHeaderHidden(True)
 534                 if not IS_MAEMO:
 535                         self._categoryView.setAlternatingRowColors(True)
 536                 self._categoryView.setSelectionBehavior(QtGui.QAbstractItemView.SelectRows)
 537                 self._categoryView.setSelectionMode(QtGui.QAbstractItemView.SingleSelection)
 538                 for catName in unit_data.UNIT_CATEGORIES:
 539                         twi = QtGui.QTreeWidgetItem(self._categoryView)
 540                         twi.setText(0, catName)
 541                 self._categorySelection = self._categoryView.selectionModel()
 542                 self._categorySelection.selectionChanged.connect(self._on_category_selection_changed)
 543
 544                 self._inputView = QtGui.QTreeWidget()
 545                 self._inputView.setHeaderLabels(["Input", "Name"])
 546                 self._inputView.setHeaderHidden(True)
 547                 self._inputView.header().hideSection(1)
 548                 if not IS_MAEMO:
 549                         self._inputView.setAlternatingRowColors(True)
 550                 self._inputView.setSelectionBehavior(QtGui.QAbstractItemView.SelectRows)
 551                 self._inputView.setSelectionMode(QtGui.QAbstractItemView.SingleSelection)
 552                 self._inputSelection = self._inputView.selectionModel()
 553                 self._inputSelection.selectionChanged.connect(self._on_input_selection_changed)
 554
 555                 self._outputView = QtGui.QTreeWidget()
 556                 self._outputView.setHeaderLabels(["Output", "Name"])
 557                 self._outputView.setHeaderHidden(True)
 558                 self._outputView.header().hideSection(1)
 559                 if not IS_MAEMO:
 560                         self._outputView.setAlternatingRowColors(True)
 561                 self._outputView.setSelectionBehavior(QtGui.QAbstractItemView.SelectRows)
 562                 self._outputView.setSelectionMode(QtGui.QAbstractItemView.SingleSelection)
 563                 self._outputWidgets = []
 564                 self._outputSelection = self._outputView.selectionModel()
 565                 self._outputSelection.selectionChanged.connect(self._on_output_selection_changed)
 566
 567                 self._selectionLayout = QtGui.QHBoxLayout()
 568                 self._selectionLayout.addWidget(self._categoryView)
 569                 self._selectionLayout.addWidget(self._inputView)
 570                 self._selectionLayout.addWidget(self._outputView)
 571
 572                 self._layout = QtGui.QVBoxLayout()
 573                 self._layout.addLayout(self._conversionLayout)
 574                 self._layout.addLayout(self._selectionLayout)
 575
 576                 centralWidget = QtGui.QWidget()
 577                 centralWidget.setLayout(self._layout)
 578
 579                 self._window = QtGui.QMainWindow(parent)
 580                 self._window.setAttribute(QtCore.Qt.WA_DeleteOnClose, True)
 581                 maeqt.set_autorient(self._window, True)
 582                 maeqt.set_stackable(self._window, True)
 583                 if parent is not None:
 584                         self._window.setWindowModality(QtCore.Qt.WindowModal)
 585                 self._window.setWindowTitle("%s - Quick Convert" % (constants.__pretty_app_name__, ))
 586                 self._window.setWindowIcon(QtGui.QIcon(app.appIconPath))
 587                 self._window.setCentralWidget(centralWidget)
 588
 589                 self._chooseCatFavoritesAction = QtGui.QAction(None)
 590                 self._chooseCatFavoritesAction.setText("Select Categories")
 591                 self._chooseCatFavoritesAction.triggered.connect(self._on_choose_category_favorites)
 592
 593                 self._chooseUnitFavoritesAction = QtGui.QAction(None)
 594                 self._chooseUnitFavoritesAction.setText("Select Units")
 595                 self._chooseUnitFavoritesAction.triggered.connect(self._on_choose_unit_favorites)
 596
 597                 self._app.showFavoritesAction.toggled.connect(self._on_show_favorites)
 598
 599                 self._closeWindowAction = QtGui.QAction(None)
 600                 self._closeWindowAction.setText("Close Window")
 601                 self._closeWindowAction.setShortcut(QtGui.QKeySequence("CTRL+w"))
 602                 self._closeWindowAction.triggered.connect(self._on_close_window)
 603
 604                 if IS_MAEMO:
 605                         self._window.addAction(self._closeWindowAction)
 606                         self._window.addAction(self._app.quitAction)
 607                         self._window.addAction(self._app.fullscreenAction)
 608
 609                         fileMenu = self._window.menuBar().addMenu("&Units")
 610                         fileMenu.addAction(self._chooseCatFavoritesAction)
 611                         fileMenu.addAction(self._chooseUnitFavoritesAction)
 612
 613                         viewMenu = self._window.menuBar().addMenu("&View")
 614                         viewMenu.addAction(self._app.showFavoritesAction)
 615                         viewMenu.addAction(self._app.condensedAction)
 616                         viewMenu.addSeparator()
 617                         viewMenu.addAction(self._app.jumpAction)
 618                         viewMenu.addAction(self._app.recentAction)
 619                 else:
 620                         fileMenu = self._window.menuBar().addMenu("&Units")
 621                         fileMenu.addAction(self._chooseCatFavoritesAction)
 622                         fileMenu.addAction(self._chooseUnitFavoritesAction)
 623                         fileMenu.addAction(self._closeWindowAction)
 624                         fileMenu.addAction(self._app.quitAction)
 625
 626                         viewMenu = self._window.menuBar().addMenu("&View")
 627                         viewMenu.addAction(self._app.showFavoritesAction)
 628                         viewMenu.addAction(self._app.condensedAction)
 629                         viewMenu.addSeparator()
 630                         viewMenu.addAction(self._app.jumpAction)
 631                         viewMenu.addAction(self._app.recentAction)
 632                         viewMenu.addSeparator()
 633                         viewMenu.addAction(self._app.fullscreenAction)
 634
 635                 self._window.addAction(self._app.logAction)
 636
 637                 self._update_favorites()
 638                 self.set_fullscreen(self._app.fullscreenAction.isChecked())
 639                 self._window.show()
 640
 641         @property
 642         def window(self):
 643                 return self._window
 644
 645         def close(self):
 646                 self._window.close()
 647
 648         def set_fullscreen(self, isFullscreen):
 649                 if isFullscreen:
 650                         self._window.showFullScreen()
 651                 else:
 652                         self._window.showNormal()
 653
 654         def select_category(self, categoryName):
 655                 self._inputUnitValue.setText("")
 656                 self._inputView.clear()
 657                 self._outputView.clear()
 658                 self._categoryName = categoryName
 659
 660                 unitData = unit_data.UNIT_DESCRIPTIONS[categoryName]
 661                 self._unitNames = list(unit_data.get_units(categoryName))
 662                 self._unitNames.sort()
 663                 for key in self._unitNames:
 664                         conversion, unit, description = unitData[key]
 665                         if not unit:
 666                                 unit = key
 667
 668                         twi = QtGui.QTreeWidgetItem(self._inputView)
 669                         twi.setText(0, unit)
 670                         twi.setText(1, key)
 671
 672                         twi = QtGui.QTreeWidgetItem(self._outputView)
 673                         twi.setText(0, unit)
 674                         twi.setText(1, key)
 675
 676                 i = unit_data.UNIT_CATEGORIES.index(categoryName)
 677                 rootIndex = self._categoryView.rootIndex()
 678                 currentIndex = self._categoryView.model().index(i, 0, rootIndex)
 679                 self._categoryView.scrollTo(currentIndex)
 680
 681                 defaultInputUnitName = self._app.get_recent_unit(categoryName)
 682                 if defaultInputUnitName:
 683                         self.select_input(defaultInputUnitName)
 684                         defaultOutputUnitName = self._app.get_recent_unit(categoryName, 1)
 685                         assert defaultOutputUnitName
 686                         self.select_output(defaultOutputUnitName)
 687
 688                 return self
 689
 690         def select_unit(self, name):
 691                 self.select_input(name)
 692
 693         def select_input(self, name):
 694                 self._app.add_recent(self._categoryName, name)
 695                 self._inputUnitName = name
 696
 697                 unitData = unit_data.UNIT_DESCRIPTIONS[self._categoryName]
 698                 conversion, unit, description = unitData[name]
 699
 700                 self._inputUnitSymbol.setText(unit if unit else name)
 701
 702                 i = self._unitNames.index(name)
 703                 rootIndex = self._inputView.rootIndex()
 704                 currentIndex = self._inputView.model().index(i, 0, rootIndex)
 705                 self._inputView.scrollTo(currentIndex)
 706
 707         def select_output(self, name):
 708                 # Add the output to recent but don't make things weird by making it the most recent
 709                 self._app.add_recent(self._categoryName, name)
 710                 self._app.add_recent(self._categoryName, self._inputUnitName)
 711                 self._outputUnitName = name
 712
 713                 unitData = unit_data.UNIT_DESCRIPTIONS[self._categoryName]
 714                 conversion, unit, description = unitData[name]
 715
 716                 self._outputUnitSymbol.setText(unit if unit else name)
 717
 718                 i = self._unitNames.index(name)
 719                 rootIndex = self._outputView.rootIndex()
 720                 currentIndex = self._outputView.model().index(i, 0, rootIndex)
 721                 self._outputView.scrollTo(currentIndex)
 722
 723         def _sanitize_value(self, userEntry):
 724                 if self._categoryName == "Computer Numbers":
 725                         if userEntry == '':
 726                                 value = '0'
 727                         else:
 728                                 value = userEntry
 729                 else:
 730                         if userEntry == '':
 731                                 value = 0.0
 732                         else:
 733                                 value = float(userEntry)
 734                 return value
 735
 736         def _update_favorites(self):
 737                 if self._app.showFavoritesAction.isChecked():
 738                         assert self._categoryView.topLevelItemCount() == len(unit_data.UNIT_CATEGORIES)
 739                         for i, catName in enumerate(unit_data.UNIT_CATEGORIES):
 740                                 if catName in self._app.hiddenCategories:
 741                                         self._categoryView.setRowHidden(i, self._categoryView.rootIndex(), True)
 742                                 else:
 743                                         self._categoryView.setRowHidden(i, self._categoryView.rootIndex(), False)
 744
 745                         for i, unitName in enumerate(self._unitNames):
 746                                 if unitName in self._app.get_hidden_units(self._categoryName):
 747                                         self._inputView.setRowHidden(i, self._inputView.rootIndex(), True)
 748                                         self._outputView.setRowHidden(i, self._outputView.rootIndex(), True)
 749                                 else:
 750                                         self._inputView.setRowHidden(i, self._inputView.rootIndex(), False)
 751                                         self._outputView.setRowHidden(i, self._outputView.rootIndex(), False)
 752                 else:
 753                         for i in xrange(self._categoryView.topLevelItemCount()):
 754                                 self._categoryView.setRowHidden(i, self._categoryView.rootIndex(), False)
 755
 756                         for i in xrange(len(self._unitNames)):
 757                                 self._inputView.setRowHidden(i, self._inputView.rootIndex(), False)
 758                                 self._outputView.setRowHidden(i, self._outputView.rootIndex(), False)
 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_show_favorites(self, checked = True):
 766                 if checked:
 767                         assert self._categoryView.topLevelItemCount() == len(unit_data.UNIT_CATEGORIES)
 768                         for i, catName in enumerate(unit_data.UNIT_CATEGORIES):
 769                                 if catName in self._app.hiddenCategories:
 770                                         self._categoryView.setRowHidden(i, self._categoryView.rootIndex(), True)
 771
 772                         for i, unitName in enumerate(self._unitNames):
 773                                 if unitName in self._app.get_hidden_units(self._categoryName):
 774                                         self._inputView.setRowHidden(i, self._inputView.rootIndex(), True)
 775                                         self._outputView.setRowHidden(i, self._outputView.rootIndex(), True)
 776                 else:
 777                         for i in xrange(self._categoryView.topLevelItemCount()):
 778                                 self._categoryView.setRowHidden(i, self._categoryView.rootIndex(), False)
 779
 780                         for i in xrange(len(self._unitNames)):
 781                                 self._inputView.setRowHidden(i, self._inputView.rootIndex(), False)
 782                                 self._outputView.setRowHidden(i, self._outputView.rootIndex(), False)
 783
 784         @misc_utils.log_exception(_moduleLogger)
 785         def _on_choose_category_favorites(self, obj = None):
 786                 assert self._favoritesWindow is None
 787                 self._favoritesWindow = FavoritesWindow(
 788                         self._window,
 789                         self._app,
 790                         unit_data.UNIT_CATEGORIES,
 791                         self._app.hiddenCategories
 792                 )
 793                 self._favoritesWindow.window.destroyed.connect(self._on_close_favorites)
 794                 return self._favoritesWindow
 795
 796         @misc_utils.log_exception(_moduleLogger)
 797         def _on_choose_unit_favorites(self, obj = None):
 798                 assert self._favoritesWindow is None
 799                 self._favoritesWindow = FavoritesWindow(
 800                         self._window,
 801                         self._app,
 802                         unit_data.get_units(self._categoryName),
 803                         self._app.get_hidden_units(self._categoryName)
 804                 )
 805                 self._favoritesWindow.window.destroyed.connect(self._on_close_favorites)
 806                 return self._favoritesWindow
 807
 808         @misc_utils.log_exception(_moduleLogger)
 809         def _on_close_favorites(self, obj = None):
 810                 self._favoritesWindow = None
 811                 self._update_favorites()
 812
 813         @misc_utils.log_exception(_moduleLogger)
 814         def _on_value_edited(self, *args):
 815                 assert self._categoryName
 816                 assert self._inputUnitName
 817                 assert self._outputUnitName
 818
 819                 userInput = str(self._inputUnitValue.text())
 820                 value = self._sanitize_value(userInput)
 821
 822                 unitData = unit_data.UNIT_DESCRIPTIONS[self._categoryName]
 823                 inputConversion, _, _ = unitData[self._inputUnitName]
 824                 outputConversion, _, _ = unitData[self._outputUnitName]
 825
 826                 func, arg = inputConversion
 827                 base = func.to_base(value, arg)
 828
 829                 func, arg = outputConversion
 830                 newValue = func.from_base(base, arg)
 831                 self._outputUnitValue.setText(str(newValue))
 832
 833         @misc_utils.log_exception(_moduleLogger)
 834         def _on_category_selection_changed(self, selected, deselected):
 835                 selectedNames = [
 836                         str(item.text(0))
 837                         for item in self._categoryView.selectedItems()
 838                 ]
 839                 assert len(selectedNames) == 1
 840                 self.select_category(selectedNames[0])
 841
 842         @misc_utils.log_exception(_moduleLogger)
 843         def _on_input_selection_changed(self, selected, deselected):
 844                 selectedNames = [
 845                         str(item.text(1))
 846                         for item in self._inputView.selectedItems()
 847                 ]
 848                 if selectedNames:
 849                         assert len(selectedNames) == 1
 850                         name = selectedNames[0]
 851                         self.select_input(name)
 852                 else:
 853                         pass
 854
 855         @misc_utils.log_exception(_moduleLogger)
 856         def _on_output_selection_changed(self, selected, deselected):
 857                 selectedNames = [
 858                         str(item.text(1))
 859                         for item in self._outputView.selectedItems()
 860                 ]
 861                 if selectedNames:
 862                         assert len(selectedNames) == 1
 863                         name = selectedNames[0]
 864                         self.select_output(name)
 865                 else:
 866                         pass
 867
 868
 869 class FavoritesWindow(object):
 870
 871         def __init__(self, parent, app, source, hidden):
 872                 self._app = app
 873                 self._source = list(source)
 874                 self._hidden = hidden
 875
 876                 self._categories = QtGui.QTreeWidget()
 877                 self._categories.setHeaderLabels(["Categories"])
 878                 self._categories.setHeaderHidden(True)
 879                 if not IS_MAEMO:
 880                         self._categories.setAlternatingRowColors(True)
 881                 self._categories.setSelectionBehavior(QtGui.QAbstractItemView.SelectRows)
 882                 self._categories.setSelectionMode(QtGui.QAbstractItemView.MultiSelection)
 883                 self._childWidgets = []
 884                 for catName in self._source:
 885                         twi = QtGui.QTreeWidgetItem(self._categories)
 886                         twi.setText(0, catName)
 887                         self._childWidgets.append(twi)
 888                         if catName not in self._hidden:
 889                                 self._categories.setItemSelected(twi, True)
 890                 self._selection = self._categories.selectionModel()
 891                 self._selection.selectionChanged.connect(self._on_selection_changed)
 892
 893                 self._allButton = QtGui.QPushButton("All")
 894                 self._allButton.clicked.connect(self._on_select_all)
 895                 self._invertButton = QtGui.QPushButton("Invert")
 896                 self._invertButton.clicked.connect(self._on_invert_selection)
 897                 self._noneButton = QtGui.QPushButton("None")
 898                 self._noneButton.clicked.connect(self._on_select_none)
 899
 900                 self._buttonLayout = QtGui.QHBoxLayout()
 901                 self._buttonLayout.addWidget(self._allButton)
 902                 self._buttonLayout.addWidget(self._invertButton)
 903                 self._buttonLayout.addWidget(self._noneButton)
 904
 905                 self._layout = QtGui.QVBoxLayout()
 906                 self._layout.addWidget(self._categories)
 907                 self._layout.addLayout(self._buttonLayout)
 908
 909                 centralWidget = QtGui.QWidget()
 910                 centralWidget.setLayout(self._layout)
 911
 912                 self._window = QtGui.QMainWindow(parent)
 913                 self._window.setAttribute(QtCore.Qt.WA_DeleteOnClose, True)
 914                 maeqt.set_autorient(self._window, True)
 915                 maeqt.set_stackable(self._window, True)
 916                 if parent is not None:
 917                         self._window.setWindowModality(QtCore.Qt.WindowModal)
 918                 self._window.setWindowTitle("%s - Favorites" % constants.__pretty_app_name__)
 919                 self._window.setWindowIcon(QtGui.QIcon(self._app.appIconPath))
 920                 self._window.setCentralWidget(centralWidget)
 921
 922                 self._closeWindowAction = QtGui.QAction(None)
 923                 self._closeWindowAction.setText("Close")
 924                 self._closeWindowAction.setShortcut(QtGui.QKeySequence("CTRL+w"))
 925                 self._closeWindowAction.triggered.connect(self._on_close_window)
 926
 927                 if IS_MAEMO:
 928                         self._window.addAction(self._closeWindowAction)
 929                         self._window.addAction(self._app.quitAction)
 930                         self._window.addAction(self._app.fullscreenAction)
 931                 else:
 932                         fileMenu = self._window.menuBar().addMenu("&Units")
 933                         fileMenu.addAction(self._closeWindowAction)
 934                         fileMenu.addAction(self._app.quitAction)
 935
 936                         viewMenu = self._window.menuBar().addMenu("&View")
 937                         viewMenu.addAction(self._app.fullscreenAction)
 938
 939                 self._window.addAction(self._app.logAction)
 940
 941                 self.set_fullscreen(self._app.fullscreenAction.isChecked())
 942                 self._window.show()
 943
 944         @property
 945         def window(self):
 946                 return self._window
 947
 948         def close(self):
 949                 self._window.close()
 950
 951         def set_fullscreen(self, isFullscreen):
 952                 if isFullscreen:
 953                         self._window.showFullScreen()
 954                 else:
 955                         self._window.showNormal()
 956
 957         @misc_utils.log_exception(_moduleLogger)
 958         def _on_select_all(self, checked = False):
 959                 for child in self._childWidgets:
 960                         self._categories.setItemSelected(child, True)
 961
 962         @misc_utils.log_exception(_moduleLogger)
 963         def _on_invert_selection(self, checked = False):
 964                 for child in self._childWidgets:
 965                         isSelected = self._categories.isItemSelected(child)
 966                         self._categories.setItemSelected(child, not isSelected)
 967
 968         @misc_utils.log_exception(_moduleLogger)
 969         def _on_select_none(self, checked = False):
 970                 for child in self._childWidgets:
 971                         self._categories.setItemSelected(child, False)
 972
 973         @misc_utils.log_exception(_moduleLogger)
 974         def _on_selection_changed(self, selected, deselected):
 975                 self._hidden.clear()
 976                 selectedNames = set(
 977                         str(item.text(0))
 978                         for item in self._categories.selectedItems()
 979                 )
 980                 for name in self._source:
 981                         if name not in selectedNames:
 982                                 self._hidden.add(name)
 983
 984         @misc_utils.log_exception(_moduleLogger)
 985         def _on_close_window(self, checked = True):
 986                 self.close()
 987
 988
 989 class CategoryWindow(object):
 990
 991         def __init__(self, parent, app):
 992                 self._app = app
 993                 self._unitWindow = None
 994                 self._favoritesWindow = None
 995
 996                 self._categories = QtGui.QTreeWidget()
 997                 self._categories.setHeaderLabels(["Categories"])
 998                 self._categories.itemClicked.connect(self._on_category_clicked)
 999                 self._categories.setHeaderHidden(True)
1000                 if not IS_MAEMO:
1001                         self._categories.setAlternatingRowColors(True)
1002                 for catName in unit_data.UNIT_CATEGORIES:
1003                         twi = QtGui.QTreeWidgetItem(self._categories)
1004                         twi.setText(0, catName)
1005
1006                 self._layout = QtGui.QVBoxLayout()
1007                 self._layout.addWidget(self._categories)
1008
1009                 centralWidget = QtGui.QWidget()
1010                 centralWidget.setLayout(self._layout)
1011
1012                 self._window = QtGui.QMainWindow(parent)
1013                 self._window.setAttribute(QtCore.Qt.WA_DeleteOnClose, True)
1014                 maeqt.set_autorient(self._window, True)
1015                 maeqt.set_stackable(self._window, True)
1016                 if parent is not None:
1017                         self._window.setWindowModality(QtCore.Qt.WindowModal)
1018                 self._window.setWindowTitle("%s - Categories" % constants.__pretty_app_name__)
1019                 self._window.setWindowIcon(QtGui.QIcon(self._app.appIconPath))
1020                 self._window.setCentralWidget(centralWidget)
1021
1022                 self._chooseFavoritesAction = QtGui.QAction(None)
1023                 self._chooseFavoritesAction.setText("Select Favorites")
1024                 self._chooseFavoritesAction.setShortcut(QtGui.QKeySequence("CTRL+f"))
1025                 self._chooseFavoritesAction.triggered.connect(self._on_choose_favorites)
1026
1027                 self._app.showFavoritesAction.toggled.connect(self._on_show_favorites)
1028
1029                 self._closeWindowAction = QtGui.QAction(None)
1030                 self._closeWindowAction.setText("Close")
1031                 self._closeWindowAction.setShortcut(QtGui.QKeySequence("CTRL+w"))
1032                 self._closeWindowAction.triggered.connect(self._on_close_window)
1033
1034                 if IS_MAEMO:
1035                         fileMenu = self._window.menuBar().addMenu("&Units")
1036                         fileMenu.addAction(self._chooseFavoritesAction)
1037
1038                         viewMenu = self._window.menuBar().addMenu("&View")
1039                         viewMenu.addAction(self._app.showFavoritesAction)
1040                         viewMenu.addAction(self._app.condensedAction)
1041                         viewMenu.addSeparator()
1042                         viewMenu.addAction(self._app.jumpAction)
1043                         viewMenu.addAction(self._app.recentAction)
1044
1045                         self._window.addAction(self._closeWindowAction)
1046                         self._window.addAction(self._app.quitAction)
1047                         self._window.addAction(self._app.fullscreenAction)
1048                 else:
1049                         fileMenu = self._window.menuBar().addMenu("&Units")
1050                         fileMenu.addAction(self._chooseFavoritesAction)
1051                         fileMenu.addAction(self._closeWindowAction)
1052                         fileMenu.addAction(self._app.quitAction)
1053
1054                         viewMenu = self._window.menuBar().addMenu("&View")
1055                         viewMenu.addAction(self._app.showFavoritesAction)
1056                         viewMenu.addAction(self._app.condensedAction)
1057                         viewMenu.addSeparator()
1058                         viewMenu.addAction(self._app.jumpAction)
1059                         viewMenu.addAction(self._app.recentAction)
1060                         viewMenu.addSeparator()
1061                         viewMenu.addAction(self._app.fullscreenAction)
1062
1063                 self._window.addAction(self._app.logAction)
1064
1065                 self._update_favorites()
1066                 self.set_fullscreen(self._app.fullscreenAction.isChecked())
1067                 self._window.show()
1068
1069         @property
1070         def window(self):
1071                 return self._window
1072
1073         def walk_children(self):
1074                 if self._unitWindow is not None:
1075                         yield self._unitWindow
1076                 if self._favoritesWindow is not None:
1077                         yield self._favoritesWindow
1078
1079         def close(self):
1080                 for child in self.walk_children():
1081                         child.close()
1082                 self._window.close()
1083
1084         def select_category(self, categoryName):
1085                 for child in self.walk_children():
1086                         child.close()
1087                 self._unitWindow = UnitWindow(self._window, categoryName, self._app)
1088                 self._unitWindow.window.destroyed.connect(self._on_child_close)
1089
1090                 i = unit_data.UNIT_CATEGORIES.index(categoryName)
1091                 rootIndex = self._categories.rootIndex()
1092                 currentIndex = self._categories.model().index(i, 0, rootIndex)
1093                 self._categories.scrollTo(currentIndex)
1094                 return self._unitWindow
1095
1096         def set_fullscreen(self, isFullscreen):
1097                 if isFullscreen:
1098                         self._window.showFullScreen()
1099                 else:
1100                         self._window.showNormal()
1101                 for child in self.walk_children():
1102                         child.set_fullscreen(isFullscreen)
1103
1104         def _update_favorites(self):
1105                 if self._app.showFavoritesAction.isChecked():
1106                         assert self._categories.topLevelItemCount() == len(unit_data.UNIT_CATEGORIES)
1107                         for i, catName in enumerate(unit_data.UNIT_CATEGORIES):
1108                                 if catName in self._app.hiddenCategories:
1109                                         self._categories.setRowHidden(i, self._categories.rootIndex(), True)
1110                                 else:
1111                                         self._categories.setRowHidden(i, self._categories.rootIndex(), False)
1112                 else:
1113                         for i in xrange(self._categories.topLevelItemCount()):
1114                                 self._categories.setRowHidden(i, self._categories.rootIndex(), False)
1115
1116         @misc_utils.log_exception(_moduleLogger)
1117         def _on_show_favorites(self, checked = True):
1118                 if checked:
1119                         assert self._categories.topLevelItemCount() == len(unit_data.UNIT_CATEGORIES)
1120                         for i, catName in enumerate(unit_data.UNIT_CATEGORIES):
1121                                 if catName in self._app.hiddenCategories:
1122                                         self._categories.setRowHidden(i, self._categories.rootIndex(), True)
1123                 else:
1124                         for i in xrange(self._categories.topLevelItemCount()):
1125                                 self._categories.setRowHidden(i, self._categories.rootIndex(), False)
1126
1127         @misc_utils.log_exception(_moduleLogger)
1128         def _on_choose_favorites(self, obj = None):
1129                 assert self._favoritesWindow is None
1130                 self._favoritesWindow = FavoritesWindow(
1131                         self._window,
1132                         self._app,
1133                         unit_data.UNIT_CATEGORIES,
1134                         self._app.hiddenCategories
1135                 )
1136                 self._favoritesWindow.window.destroyed.connect(self._on_close_favorites)
1137                 return self._favoritesWindow
1138
1139         @misc_utils.log_exception(_moduleLogger)
1140         def _on_close_favorites(self, obj = None):
1141                 self._favoritesWindow = None
1142                 self._update_favorites()
1143
1144         @misc_utils.log_exception(_moduleLogger)
1145         def _on_child_close(self, obj = None):
1146                 self._unitWindow = None
1147
1148         @misc_utils.log_exception(_moduleLogger)
1149         def _on_close_window(self, checked = True):
1150                 self.close()
1151
1152         @misc_utils.log_exception(_moduleLogger)
1153         def _on_category_clicked(self, item, columnIndex):
1154                 categoryName = unicode(item.text(0))
1155                 self.select_category(categoryName)
1156
1157
1158 class UnitData(object):
1159
1160         HEADERS = ["Name", "Value", "", "Unit"]
1161         ALIGNMENT = [QtCore.Qt.AlignLeft, QtCore.Qt.AlignRight, QtCore.Qt.AlignLeft, QtCore.Qt.AlignLeft]
1162         NAME_COLUMN = 0
1163         VALUE_COLUMN_0 = 1
1164         VALUE_COLUMN_1 = 2
1165         UNIT_COLUMN = 3
1166
1167         def __init__(self, name, unit, description, conversion):
1168                 self._name = name
1169                 self._unit = unit
1170                 self._description = description
1171                 self._conversion = conversion
1172
1173                 self._value = 0.0
1174                 self._integerDisplay, self._fractionalDisplay = split_number(self._value)
1175
1176         @property
1177         def name(self):
1178                 return self._name
1179
1180         @property
1181         def value(self):
1182                 return self._value
1183
1184         def update_value(self, newValue):
1185                 self._value = newValue
1186                 self._integerDisplay, self._fractionalDisplay = split_number(newValue)
1187
1188         @property
1189         def unit(self):
1190                 return self._unit
1191
1192         @property
1193         def conversion(self):
1194                 return self._conversion
1195
1196         def data(self, column):
1197                 try:
1198                         return [self._name, self._integerDisplay, self._fractionalDisplay, self._unit][column]
1199                 except IndexError:
1200                         return None
1201
1202
1203 class UnitModel(QtCore.QAbstractItemModel):
1204
1205         def __init__(self, categoryName, parent=None):
1206                 super(UnitModel, self).__init__(parent)
1207                 self._categoryName = categoryName
1208                 self._unitData = unit_data.UNIT_DESCRIPTIONS[self._categoryName]
1209
1210                 self._children = []
1211                 for key in unit_data.get_units(self._categoryName):
1212                         conversion, unit, description = self._unitData[key]
1213                         self._children.append(UnitData(key, unit, description, conversion))
1214                 self._sortSettings = None
1215
1216         @misc_utils.log_exception(_moduleLogger)
1217         def columnCount(self, parent):
1218                 if parent.isValid():
1219                         return 0
1220                 else:
1221                         return len(UnitData.HEADERS)
1222
1223         @misc_utils.log_exception(_moduleLogger)
1224         def data(self, index, role):
1225                 if not index.isValid():
1226                         return None
1227                 elif role == QtCore.Qt.TextAlignmentRole:
1228                         return UnitData.ALIGNMENT[index.column()]
1229                 elif role != QtCore.Qt.DisplayRole:
1230                         return None
1231
1232                 item = index.internalPointer()
1233                 if isinstance(item, UnitData):
1234                         return item.data(index.column())
1235                 elif item is UnitData.HEADERS:
1236                         return item[index.column()]
1237
1238         @misc_utils.log_exception(_moduleLogger)
1239         def sort(self, column, order = QtCore.Qt.AscendingOrder):
1240                 self._sortSettings = column, order
1241                 isReverse = order == QtCore.Qt.AscendingOrder
1242                 if column == UnitData.NAME_COLUMN:
1243                         key_func = lambda item: item.name
1244                 elif column in [UnitData.VALUE_COLUMN_0, UnitData.VALUE_COLUMN_1]:
1245                         key_func = lambda item: item.value
1246                 elif column == UnitData.UNIT_COLUMN:
1247                         key_func = lambda item: item.unit
1248                 self._children.sort(key=key_func, reverse = isReverse)
1249
1250                 self._all_changed()
1251
1252         @misc_utils.log_exception(_moduleLogger)
1253         def flags(self, index):
1254                 if not index.isValid():
1255                         return QtCore.Qt.NoItemFlags
1256
1257                 return QtCore.Qt.ItemIsEnabled | QtCore.Qt.ItemIsSelectable
1258
1259         @misc_utils.log_exception(_moduleLogger)
1260         def headerData(self, section, orientation, role):
1261                 if orientation == QtCore.Qt.Horizontal and role == QtCore.Qt.DisplayRole:
1262                         return UnitData.HEADERS[section]
1263
1264                 return None
1265
1266         @misc_utils.log_exception(_moduleLogger)
1267         def index(self, row, column, parent):
1268                 if not self.hasIndex(row, column, parent):
1269                         return QtCore.QModelIndex()
1270
1271                 if parent.isValid():
1272                         return QtCore.QModelIndex()
1273
1274                 parentItem = UnitData.HEADERS
1275                 childItem = self._children[row]
1276                 if childItem:
1277                         return self.createIndex(row, column, childItem)
1278                 else:
1279                         return QtCore.QModelIndex()
1280
1281         @misc_utils.log_exception(_moduleLogger)
1282         def parent(self, index):
1283                 if not index.isValid():
1284                         return QtCore.QModelIndex()
1285
1286                 childItem = index.internalPointer()
1287                 if isinstance(childItem, UnitData):
1288                         return QtCore.QModelIndex()
1289                 elif childItem is UnitData.HEADERS:
1290                         return None
1291
1292         @misc_utils.log_exception(_moduleLogger)
1293         def rowCount(self, parent):
1294                 if 0 < parent.column():
1295                         return 0
1296
1297                 if not parent.isValid():
1298                         return len(self._children)
1299                 else:
1300                         return len(self._children)
1301
1302         def get_unit(self, index):
1303                 assert 0 <= index
1304                 return self._children[index]
1305
1306         def get_unit_names(self):
1307                 for child in self._children:
1308                         yield child.name
1309
1310         def index_unit(self, unitName):
1311                 for i, child in enumerate(self._children):
1312                         if child.name == unitName:
1313                                 return i
1314                 else:
1315                         raise RuntimeError("Unit not found")
1316
1317         def update_values(self, fromIndex, userInput):
1318                 value = self._sanitize_value(userInput)
1319                 func, arg = self._children[fromIndex].conversion
1320                 base = func.to_base(value, arg)
1321                 for i, child in enumerate(self._children):
1322                         if i == fromIndex:
1323                                 continue
1324                         func, arg = child.conversion
1325                         newValue = func.from_base(base, arg)
1326                         child.update_value(newValue)
1327
1328                 if (
1329                         self._sortSettings is not None and
1330                         self._sortSettings[0]  in [UnitData.VALUE_COLUMN_0, UnitData.VALUE_COLUMN_1]
1331                 ):
1332                         self.sort(*self._sortSettings)
1333                         self._all_changed()
1334                 else:
1335                         self._values_changed()
1336
1337         def __len__(self):
1338                 return len(self._children)
1339
1340         def _values_changed(self):
1341                 topLeft = self.createIndex(0, UnitData.VALUE_COLUMN_0, self._children[0])
1342                 bottomRight = self.createIndex(len(self._children)-1, UnitData.VALUE_COLUMN_1, self._children[-1])
1343                 self.dataChanged.emit(topLeft, bottomRight)
1344
1345         def _all_changed(self):
1346                 topLeft = self.createIndex(0, 0, self._children[0])
1347                 bottomRight = self.createIndex(len(self._children)-1, len(UnitData.HEADERS)-1, self._children[-1])
1348                 self.dataChanged.emit(topLeft, bottomRight)
1349
1350         def _sanitize_value(self, userEntry):
1351                 if self._categoryName == "Computer Numbers":
1352                         if userEntry == '':
1353                                 value = '0'
1354                         else:
1355                                 value = userEntry
1356                 else:
1357                         if userEntry == '':
1358                                 value = 0.0
1359                         else:
1360                                 value = float(userEntry)
1361                 return value
1362
1363
1364 class UnitWindow(object):
1365
1366         def __init__(self, parent, category, app):
1367                 self._app = app
1368                 self._categoryName = category
1369                 self._selectedIndex = 0
1370                 self._favoritesWindow = None
1371
1372                 self._selectedUnitName = QtGui.QLabel()
1373                 self._selectedUnitValue = QtGui.QLineEdit()
1374                 self._selectedUnitValue.textEdited.connect(self._on_value_edited)
1375                 maeqt.mark_numbers_preferred(self._selectedUnitValue)
1376                 self._selectedUnitSymbol = QtGui.QLabel()
1377
1378                 self._selectedUnitLayout = QtGui.QHBoxLayout()
1379                 self._selectedUnitLayout.addWidget(self._selectedUnitName)
1380                 self._selectedUnitLayout.addWidget(self._selectedUnitValue)
1381                 self._selectedUnitLayout.addWidget(self._selectedUnitSymbol)
1382
1383                 self._unitsModel = UnitModel(self._categoryName)
1384                 self._unitsView = QtGui.QTreeView()
1385                 self._unitsView.setModel(self._unitsModel)
1386                 self._unitsView.clicked.connect(self._on_unit_clicked)
1387                 self._unitsView.setUniformRowHeights(True)
1388                 self._unitsView.setSortingEnabled(True)
1389                 self._unitsView.setTextElideMode(QtCore.Qt.ElideNone)
1390                 self._unitsView.setHorizontalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
1391                 if not IS_MAEMO:
1392                         self._unitsView.setAlternatingRowColors(True)
1393                 if True:
1394                         self._unitsView.setHeaderHidden(True)
1395
1396                 viewHeader = self._unitsView.header()
1397                 viewHeader.setSortIndicatorShown(True)
1398                 viewHeader.setClickable(True)
1399
1400                 viewHeader.setResizeMode(UnitData.NAME_COLUMN, QtGui.QHeaderView.ResizeToContents)
1401                 viewHeader.setResizeMode(UnitData.VALUE_COLUMN_0, QtGui.QHeaderView.ResizeToContents)
1402                 viewHeader.setResizeMode(UnitData.VALUE_COLUMN_1, QtGui.QHeaderView.ResizeToContents)
1403                 viewHeader.setResizeMode(UnitData.UNIT_COLUMN, QtGui.QHeaderView.ResizeToContents)
1404                 viewHeader.setStretchLastSection(False)
1405
1406                 # Trying to make things faster by locking in the initial size of the immutable columns
1407                 nameSize = viewHeader.sectionSize(UnitData.NAME_COLUMN)
1408                 viewHeader.setResizeMode(UnitData.NAME_COLUMN, QtGui.QHeaderView.Fixed)
1409                 viewHeader.resizeSection(UnitData.NAME_COLUMN, nameSize)
1410                 unitSize = viewHeader.sectionSize(UnitData.UNIT_COLUMN)
1411                 viewHeader.setResizeMode(UnitData.UNIT_COLUMN, QtGui.QHeaderView.Fixed)
1412                 viewHeader.resizeSection(UnitData.UNIT_COLUMN, unitSize)
1413
1414                 self._layout = QtGui.QVBoxLayout()
1415                 self._layout.addLayout(self._selectedUnitLayout)
1416                 self._layout.addWidget(self._unitsView)
1417
1418                 centralWidget = QtGui.QWidget()
1419                 centralWidget.setLayout(self._layout)
1420
1421                 self._window = QtGui.QMainWindow(parent)
1422                 self._window.setAttribute(QtCore.Qt.WA_DeleteOnClose, True)
1423                 maeqt.set_autorient(self._window, True)
1424                 maeqt.set_stackable(self._window, True)
1425                 if parent is not None:
1426                         self._window.setWindowModality(QtCore.Qt.WindowModal)
1427                 self._window.setWindowTitle("%s - %s" % (constants.__pretty_app_name__, category))
1428                 self._window.setWindowIcon(QtGui.QIcon(app.appIconPath))
1429                 self._window.setCentralWidget(centralWidget)
1430
1431                 defaultUnitName = self._app.get_recent_unit(self._categoryName)
1432                 if defaultUnitName:
1433                         self.select_unit(defaultUnitName)
1434                 else:
1435                         self._select_unit(0)
1436                 self._unitsModel.sort(UnitData.NAME_COLUMN)
1437
1438                 self._sortActionGroup = QtGui.QActionGroup(None)
1439                 self._sortByNameAction = QtGui.QAction(self._sortActionGroup)
1440                 self._sortByNameAction.setText("Sort By Name")
1441                 self._sortByNameAction.setStatusTip("Sort the units by name")
1442                 self._sortByNameAction.setToolTip("Sort the units by name")
1443                 self._sortByNameAction.setCheckable(True)
1444                 self._sortByValueAction = QtGui.QAction(self._sortActionGroup)
1445                 self._sortByValueAction.setText("Sort By Value")
1446                 self._sortByValueAction.setStatusTip("Sort the units by value")
1447                 self._sortByValueAction.setToolTip("Sort the units by value")
1448                 self._sortByValueAction.setCheckable(True)
1449                 self._sortByUnitAction = QtGui.QAction(self._sortActionGroup)
1450                 self._sortByUnitAction.setText("Sort By Unit")
1451                 self._sortByUnitAction.setStatusTip("Sort the units by unit")
1452                 self._sortByUnitAction.setToolTip("Sort the units by unit")
1453                 self._sortByUnitAction.setCheckable(True)
1454
1455                 self._sortByValueAction.setChecked(True)
1456
1457                 self._chooseFavoritesAction = QtGui.QAction(None)
1458                 self._chooseFavoritesAction.setText("Select Favorites")
1459                 self._chooseFavoritesAction.setShortcut(QtGui.QKeySequence("CTRL+f"))
1460                 self._chooseFavoritesAction.triggered.connect(self._on_choose_favorites)
1461
1462                 self._app.showFavoritesAction.toggled.connect(self._on_show_favorites)
1463
1464                 self._previousUnitAction = QtGui.QAction(None)
1465                 self._previousUnitAction.setText("Previous Unit")
1466                 self._previousUnitAction.setShortcut(QtGui.QKeySequence("Up"))
1467                 self._previousUnitAction.triggered.connect(self._on_previous_unit)
1468
1469                 self._nextUnitAction = QtGui.QAction(None)
1470                 self._nextUnitAction.setText("Next Unit")
1471                 self._nextUnitAction.setShortcut(QtGui.QKeySequence("Down"))
1472                 self._nextUnitAction.triggered.connect(self._on_next_unit)
1473
1474                 self._closeWindowAction = QtGui.QAction(None)
1475                 self._closeWindowAction.setText("Close Window")
1476                 self._closeWindowAction.setShortcut(QtGui.QKeySequence("CTRL+w"))
1477                 self._closeWindowAction.triggered.connect(self._on_close_window)
1478
1479                 if IS_MAEMO:
1480                         self._window.addAction(self._closeWindowAction)
1481                         self._window.addAction(self._app.quitAction)
1482                         self._window.addAction(self._app.fullscreenAction)
1483
1484                         fileMenu = self._window.menuBar().addMenu("&Units")
1485                         fileMenu.addAction(self._chooseFavoritesAction)
1486
1487                         viewMenu = self._window.menuBar().addMenu("&View")
1488                         viewMenu.addAction(self._app.showFavoritesAction)
1489                         viewMenu.addAction(self._app.condensedAction)
1490                         viewMenu.addSeparator()
1491                         viewMenu.addAction(self._sortByNameAction)
1492                         viewMenu.addAction(self._sortByValueAction)
1493                         viewMenu.addAction(self._sortByUnitAction)
1494                         viewMenu.addSeparator()
1495                         viewMenu.addAction(self._app.jumpAction)
1496                         viewMenu.addAction(self._app.recentAction)
1497                 else:
1498                         fileMenu = self._window.menuBar().addMenu("&Units")
1499                         fileMenu.addAction(self._chooseFavoritesAction)
1500                         fileMenu.addAction(self._closeWindowAction)
1501                         fileMenu.addAction(self._app.quitAction)
1502
1503                         viewMenu = self._window.menuBar().addMenu("&View")
1504                         viewMenu.addAction(self._app.showFavoritesAction)
1505                         viewMenu.addAction(self._app.condensedAction)
1506                         viewMenu.addSeparator()
1507                         viewMenu.addAction(self._sortByNameAction)
1508                         viewMenu.addAction(self._sortByValueAction)
1509                         viewMenu.addAction(self._sortByUnitAction)
1510                         viewMenu.addSeparator()
1511                         viewMenu.addAction(self._app.jumpAction)
1512                         viewMenu.addAction(self._app.recentAction)
1513                         viewMenu.addSeparator()
1514                         viewMenu.addAction(self._app.fullscreenAction)
1515
1516                 self._sortByNameAction.triggered.connect(self._on_sort_by_name)
1517                 self._sortByValueAction.triggered.connect(self._on_sort_by_value)
1518                 self._sortByUnitAction.triggered.connect(self._on_sort_by_unit)
1519
1520                 self._window.addAction(self._app.logAction)
1521                 self._window.addAction(self._nextUnitAction)
1522                 self._window.addAction(self._previousUnitAction)
1523                 self._window.addAction(self._chooseFavoritesAction)
1524
1525                 self._update_favorites()
1526                 self.set_fullscreen(self._app.fullscreenAction.isChecked())
1527                 self._window.show()
1528
1529         @property
1530         def window(self):
1531                 return self._window
1532
1533         def close(self):
1534                 for child in self.walk_children():
1535                         child.close()
1536                 self._window.close()
1537
1538         def set_fullscreen(self, isFullscreen):
1539                 if isFullscreen:
1540                         self._window.showFullScreen()
1541                 else:
1542                         self._window.showNormal()
1543
1544         def select_unit(self, unitName):
1545                 index = self._unitsModel.index_unit(unitName)
1546                 self._select_unit(index)
1547
1548         def walk_children(self):
1549                 if self._favoritesWindow is not None:
1550                         yield self._favoritesWindow
1551
1552         def _update_favorites(self, force = False):
1553                 if self._app.showFavoritesAction.isChecked():
1554                         unitNames = list(self._unitsModel.get_unit_names())
1555                         for i, unitName in enumerate(unitNames):
1556                                 if unitName in self._app.get_hidden_units(self._categoryName):
1557                                         self._unitsView.setRowHidden(i, self._unitsView.rootIndex(), True)
1558                                 else:
1559                                         self._unitsView.setRowHidden(i, self._unitsView.rootIndex(), False)
1560                 else:
1561                         if force:
1562                                 for i in xrange(len(self._unitsModel)):
1563                                         self._unitsView.setRowHidden(i, self._unitsView.rootIndex(), False)
1564
1565         @misc_utils.log_exception(_moduleLogger)
1566         def _on_show_favorites(self, checked = True):
1567                 if checked:
1568                         unitNames = list(self._unitsModel.get_unit_names())
1569                         for i, unitName in enumerate(unitNames):
1570                                 if unitName in self._app.get_hidden_units(self._categoryName):
1571                                         self._unitsView.setRowHidden(i, self._unitsView.rootIndex(), True)
1572                 else:
1573                         for i in xrange(len(self._unitsModel)):
1574                                 self._unitsView.setRowHidden(i, self._unitsView.rootIndex(), False)
1575
1576         @misc_utils.log_exception(_moduleLogger)
1577         def _on_choose_favorites(self, obj = None):
1578                 assert self._favoritesWindow is None
1579                 self._favoritesWindow = FavoritesWindow(
1580                         self._window,
1581                         self._app,
1582                         unit_data.get_units(self._categoryName),
1583                         self._app.get_hidden_units(self._categoryName)
1584                 )
1585                 self._favoritesWindow.window.destroyed.connect(self._on_close_favorites)
1586                 return self._favoritesWindow
1587
1588         @misc_utils.log_exception(_moduleLogger)
1589         def _on_close_favorites(self, obj = None):
1590                 self._favoritesWindow = None
1591                 self._update_favorites(force=True)
1592
1593         @misc_utils.log_exception(_moduleLogger)
1594         def _on_previous_unit(self, checked = True):
1595                 self._select_unit(self._selectedIndex - 1)
1596
1597         @misc_utils.log_exception(_moduleLogger)
1598         def _on_next_unit(self, checked = True):
1599                 self._select_unit(self._selectedIndex + 1)
1600
1601         @misc_utils.log_exception(_moduleLogger)
1602         def _on_close_window(self, checked = True):
1603                 self.close()
1604
1605         @misc_utils.log_exception(_moduleLogger)
1606         def _on_sort_by_name(self, checked = False):
1607                 self._unitsModel.sort(UnitData.NAME_COLUMN, QtCore.Qt.DescendingOrder)
1608
1609         @misc_utils.log_exception(_moduleLogger)
1610         def _on_sort_by_value(self, checked = False):
1611                 self._unitsModel.sort(UnitData.VALUE_COLUMN_0)
1612
1613         @misc_utils.log_exception(_moduleLogger)
1614         def _on_sort_by_unit(self, checked = False):
1615                 self._unitsModel.sort(UnitData.UNIT_COLUMN, QtCore.Qt.DescendingOrder)
1616
1617         @misc_utils.log_exception(_moduleLogger)
1618         def _on_unit_clicked(self, index):
1619                 self._select_unit(index.row())
1620
1621         @misc_utils.log_exception(_moduleLogger)
1622         def _on_value_edited(self, *args):
1623                 userInput = self._selectedUnitValue.text()
1624                 self._unitsModel.update_values(self._selectedIndex, str(userInput))
1625                 self._update_favorites()
1626
1627         def _select_unit(self, index):
1628                 unit = self._unitsModel.get_unit(index)
1629                 self._selectedUnitName.setText(unit.name)
1630                 self._selectedUnitValue.setText(str(unit.value))
1631                 self._selectedUnitSymbol.setText(unit.unit)
1632
1633                 self._selectedIndex = index
1634                 qindex = self._unitsModel.createIndex(index, 0, self._unitsModel.get_unit(index))
1635                 self._unitsView.scrollTo(qindex)
1636                 self._app.add_recent(self._categoryName, self._unitsModel.get_unit(index).name)
1637
1638
1639 def run_gonvert():
1640         app = QtGui.QApplication([])
1641         handle = Gonvert(app)
1642         return app.exec_()
1643
1644
1645 if __name__ == "__main__":
1646         logging.basicConfig(level = logging.DEBUG)
1647         try:
1648                 os.makedirs(constants._data_path_)
1649         except OSError, e:
1650                 if e.errno != 17:
1651                         raise
1652
1653         val = run_gonvert()
1654         sys.exit(val)