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 logging
  10
  11 from PyQt4 import QtGui
  12 from PyQt4 import QtCore
  13
  14 import constants
  15 from util import misc as misc_utils
  16 import unit_data
  17
  18
  19 _moduleLogger = logging.getLogger("gonvert_glade")
  20
  21
  22 def change_menu_label(widgets, labelname, newtext):
  23         item_label = widgets.get_widget(labelname).get_children()[0]
  24         item_label.set_text(newtext)
  25
  26
  27 def split_number(number):
  28         try:
  29                 fractional, integer = math.modf(number)
  30         except TypeError:
  31                 integerDisplay = number
  32                 fractionalDisplay = ""
  33         else:
  34                 integerDisplay = str(integer)
  35                 fractionalDisplay = str(fractional)
  36                 if "e+" in integerDisplay:
  37                         integerDisplay = number
  38                         fractionalDisplay = ""
  39                 elif "e-" in fractionalDisplay and 0.0 < integer:
  40                         integerDisplay = number
  41                         fractionalDisplay = ""
  42                 elif "e-" in fractionalDisplay:
  43                         integerDisplay = ""
  44                         fractionalDisplay = number
  45                 else:
  46                         integerDisplay = integerDisplay.split(".", 1)[0] + "."
  47                         fractionalDisplay = fractionalDisplay.rsplit(".", 1)[-1]
  48
  49         return integerDisplay, fractionalDisplay
  50
  51
  52 class Gonvert(object):
  53
  54         # @todo Persist settings
  55         # @todo Favorites
  56         # @bug Fix the resurrecting window problem
  57         # @todo Unit conversion window: focus always on input, arrows switch units
  58
  59         _DATA_PATHS = [
  60                 os.path.dirname(__file__),
  61                 os.path.join(os.path.dirname(__file__), "../data"),
  62                 os.path.join(os.path.dirname(__file__), "../lib"),
  63                 '/usr/share/gonvert',
  64                 '/usr/lib/gonvert',
  65         ]
  66
  67         def __init__(self):
  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._appIconPath = appIconPath
  77                 self._recent = []
  78                 self._isFullscreen = False
  79                 self._clipboard = QtGui.QApplication.clipboard()
  80
  81                 self._jumpWindow = None
  82                 self._recentWindow = None
  83                 self._catWindow = None
  84
  85                 self._jumpAction = QtGui.QAction(None)
  86                 self._jumpAction.setText("Quick Jump")
  87                 self._jumpAction.setStatusTip("Search for a unit and jump straight to it")
  88                 self._jumpAction.setToolTip("Search for a unit and jump straight to it")
  89                 self._jumpAction.setShortcut(QtGui.QKeySequence("CTRL+j"))
  90                 self._jumpAction.triggered.connect(self._on_jump_start)
  91
  92                 self._recentAction = QtGui.QAction(None)
  93                 self._recentAction.setText("Recent Units")
  94                 self._recentAction.setStatusTip("View the recent units")
  95                 self._recentAction.setToolTip("View the recent units")
  96                 self._recentAction.setShortcut(QtGui.QKeySequence("CTRL+r"))
  97                 self._recentAction.triggered.connect(self._on_recent_start)
  98
  99                 self._fullscreenAction = QtGui.QAction(None)
 100                 self._fullscreenAction.setText("Toggle Fullscreen")
 101                 self._fullscreenAction.setShortcut(QtGui.QKeySequence("CTRL+Enter"))
 102                 self._fullscreenAction.triggered.connect(self._on_toggle_fullscreen)
 103
 104                 self._logAction = QtGui.QAction(None)
 105                 self._logAction.setText("Log")
 106                 self._logAction.setShortcut(QtGui.QKeySequence("CTRL+l"))
 107                 self._logAction.triggered.connect(self._on_log)
 108
 109                 self._quitAction = QtGui.QAction(None)
 110                 self._quitAction.setText("Quit")
 111                 self._quitAction.setShortcut(QtGui.QKeySequence("CTRL+q"))
 112                 self._quitAction.triggered.connect(self._on_quit)
 113
 114                 self.request_category()
 115
 116         def request_category(self):
 117                 if self._catWindow is not None:
 118                         self._catWindow.close()
 119                         self._catWindow = None
 120                 self._catWindow = CategoryWindow(None, self)
 121                 return self._catWindow
 122
 123         def search_units(self):
 124                 if self._jumpWindow is not None:
 125                         self._jumpWindow.close()
 126                         self._jumpWindow = None
 127                 self._jumpWindow = QuickJump(None, self)
 128                 return self._jumpWindow
 129
 130         def show_recent(self):
 131                 if self._recentWindow is not None:
 132                         self._recentWindow.close()
 133                         self._recentWindow = None
 134                 self._recentWindow = Recent(None, self)
 135                 return self._recentWindow
 136
 137         def add_recent(self, categoryName, unitName):
 138                 catUnit = categoryName, unitName
 139                 try:
 140                         self._recent.remove(catUnit)
 141                 except ValueError:
 142                         pass # ignore if its not already in the recent history
 143                 self._recent.append(catUnit)
 144
 145         def get_recent_unit(self, categoryName):
 146                 for catName, unitName in reversed(self._recent):
 147                         if catName == categoryName:
 148                                 return unitName
 149                 else:
 150                         return ""
 151
 152         def get_recent(self):
 153                 return reversed(self._recent)
 154
 155         @property
 156         def appIconPath(self):
 157                 return self._appIconPath
 158
 159         @property
 160         def jumpAction(self):
 161                 return self._jumpAction
 162
 163         @property
 164         def recentAction(self):
 165                 return self._recentAction
 166
 167         @property
 168         def fullscreenAction(self):
 169                 return self._fullscreenAction
 170
 171         @property
 172         def logAction(self):
 173                 return self._logAction
 174
 175         @property
 176         def quitAction(self):
 177                 return self._quitAction
 178
 179         def _walk_children(self):
 180                 if self._catWindow is not None:
 181                         yield self._catWindow
 182                 if self._jumpWindow is not None:
 183                         yield self._jumpWindow
 184                 if self._recentWindow is not None:
 185                         yield self._recentWindow
 186
 187         @misc_utils.log_exception(_moduleLogger)
 188         def _on_toggle_fullscreen(self, checked = False):
 189                 self._isFullscreen = not self._isFullscreen
 190                 for window in self._walk_children():
 191                         window.setFullscreen(self._isFullscreen)
 192
 193         @misc_utils.log_exception(_moduleLogger)
 194         def _on_jump_start(self, checked = False):
 195                 self.search_units()
 196
 197         @misc_utils.log_exception(_moduleLogger)
 198         def _on_recent_start(self, checked = False):
 199                 self.show_recent()
 200
 201         @misc_utils.log_exception(_moduleLogger)
 202         def _on_log(self, checked = False):
 203                 with open(constants._user_logpath_, "r") as f:
 204                         logLines = f.xreadlines()
 205                         log = "".join(logLines)
 206                         self._clipboard.setText(log)
 207
 208         @misc_utils.log_exception(_moduleLogger)
 209         def _on_quit(self, checked = False):
 210                 for window in self._walk_children():
 211                         window.close()
 212
 213
 214 class CategoryWindow(object):
 215
 216         def __init__(self, parent, app):
 217                 self._app = app
 218                 self._unitWindow = None
 219
 220                 self._categories = QtGui.QTreeWidget()
 221                 self._categories.setHeaderLabels(["Categories"])
 222                 self._categories.itemClicked.connect(self._on_category_clicked)
 223                 self._categories.setHeaderHidden(True)
 224                 self._categories.setAlternatingRowColors(True)
 225                 for catName in unit_data.UNIT_CATEGORIES:
 226                         twi = QtGui.QTreeWidgetItem(self._categories)
 227                         twi.setText(0, catName)
 228
 229                 self._layout = QtGui.QVBoxLayout()
 230                 self._layout.addWidget(self._categories)
 231
 232                 centralWidget = QtGui.QWidget()
 233                 centralWidget.setLayout(self._layout)
 234
 235                 self._window = QtGui.QMainWindow(parent)
 236                 if parent is not None:
 237                         self._window.setWindowModality(QtCore.Qt.WindowModal)
 238                 self._window.setWindowTitle("%s - Categories" % constants.__pretty_app_name__)
 239                 self._window.setWindowIcon(QtGui.QIcon(self._app.appIconPath))
 240                 self._window.setCentralWidget(centralWidget)
 241
 242                 self._closeWindowAction = QtGui.QAction(None)
 243                 self._closeWindowAction.setText("Window")
 244                 self._closeWindowAction.setShortcut(QtGui.QKeySequence("CTRL+w"))
 245                 self._closeWindowAction.triggered.connect(self._on_close_window)
 246
 247                 fileMenu = self._window.menuBar().addMenu("&File")
 248                 fileMenu.addAction(self._closeWindowAction)
 249                 fileMenu.addAction(self._app.quitAction)
 250
 251                 viewMenu = self._window.menuBar().addMenu("&View")
 252                 viewMenu.addAction(self._app.fullscreenAction)
 253                 viewMenu.addSeparator()
 254                 viewMenu.addAction(self._app.jumpAction)
 255                 viewMenu.addAction(self._app.recentAction)
 256
 257                 self._window.addAction(self._app.logAction)
 258
 259                 self._window.show()
 260
 261         def walk_children(self):
 262                 if self._unitWindow is not None:
 263                         yield self._unitWindow
 264
 265         def close(self):
 266                 for child in self.walk_children():
 267                         child.close()
 268                 self._window.close()
 269
 270         def selectCategory(self, categoryName):
 271                 for child in self.walk_children():
 272                         child.close()
 273                 self._unitWindow = UnitWindow(self._window, categoryName, self._app)
 274                 return self._unitWindow
 275
 276         def setFullscreen(self, isFullscreen):
 277                 if isFullscreen:
 278                         self._window.showFullScreen()
 279                 else:
 280                         self._window.showNormal()
 281                 for child in self.walk_children():
 282                         child.setFullscreen(isFullscreen)
 283
 284         @misc_utils.log_exception(_moduleLogger)
 285         def _on_close_window(self, checked = True):
 286                 self.close()
 287
 288         @misc_utils.log_exception(_moduleLogger)
 289         def _on_category_clicked(self, item, columnIndex):
 290                 categoryName = unicode(item.text(0))
 291                 self.selectCategory(categoryName)
 292
 293
 294 class QuickJump(object):
 295
 296         MINIMAL_ENTRY = 3
 297
 298         def __init__(self, parent, app):
 299                 self._app = app
 300
 301                 self._searchLabel = QtGui.QLabel("Search:")
 302                 self._searchEntry = QtGui.QLineEdit("")
 303                 self._searchEntry.textEdited.connect(self._on_search_edited)
 304
 305                 self._entryLayout = QtGui.QHBoxLayout()
 306                 self._entryLayout.addWidget(self._searchLabel)
 307                 self._entryLayout.addWidget(self._searchEntry)
 308
 309                 self._resultsBox = QtGui.QTreeWidget()
 310                 self._resultsBox.setHeaderLabels(["Categories", "Units"])
 311                 self._resultsBox.setHeaderHidden(True)
 312                 self._resultsBox.setAlternatingRowColors(True)
 313                 self._resultsBox.itemClicked.connect(self._on_result_clicked)
 314
 315                 self._layout = QtGui.QVBoxLayout()
 316                 self._layout.addLayout(self._entryLayout)
 317                 self._layout.addWidget(self._resultsBox)
 318
 319                 centralWidget = QtGui.QWidget()
 320                 centralWidget.setLayout(self._layout)
 321
 322                 self._window = QtGui.QMainWindow(parent)
 323                 if parent is not None:
 324                         self._window.setWindowModality(QtCore.Qt.WindowModal)
 325                 self._window.setWindowTitle("%s - Quick Jump" % constants.__pretty_app_name__)
 326                 self._window.setWindowIcon(QtGui.QIcon(self._app.appIconPath))
 327                 self._window.setCentralWidget(centralWidget)
 328
 329                 self._closeWindowAction = QtGui.QAction(None)
 330                 self._closeWindowAction.setText("Window")
 331                 self._closeWindowAction.setShortcut(QtGui.QKeySequence("CTRL+w"))
 332                 self._closeWindowAction.triggered.connect(self._on_close_window)
 333
 334                 fileMenu = self._window.menuBar().addMenu("&File")
 335                 fileMenu.addAction(self._closeWindowAction)
 336                 fileMenu.addAction(self._app.quitAction)
 337
 338                 viewMenu = self._window.menuBar().addMenu("&View")
 339                 viewMenu.addAction(self._app.fullscreenAction)
 340
 341                 self._window.addAction(self._app.logAction)
 342
 343                 self._window.show()
 344
 345         def close(self):
 346                 self._window.close()
 347
 348         def setFullscreen(self, isFullscreen):
 349                 if isFullscreen:
 350                         self._window.showFullScreen()
 351                 else:
 352                         self._window.showNormal()
 353
 354         @misc_utils.log_exception(_moduleLogger)
 355         def _on_close_window(self, checked = True):
 356                 self.close()
 357
 358         @misc_utils.log_exception(_moduleLogger)
 359         def _on_result_clicked(self, item, columnIndex):
 360                 categoryName = unicode(item.text(0))
 361                 unitName = unicode(item.text(1))
 362                 catWindow = self._app.request_category()
 363                 unitsWindow = catWindow.selectCategory(categoryName)
 364                 unitsWindow.select_unit(unitName)
 365                 self.close()
 366
 367         @misc_utils.log_exception(_moduleLogger)
 368         def _on_search_edited(self, *args):
 369                 userInput = self._searchEntry.text()
 370                 if len(userInput) <  self.MINIMAL_ENTRY:
 371                         return
 372
 373                 self._resultsBox.clear()
 374                 lowerInput = str(userInput).lower()
 375                 for catIndex, category in enumerate(unit_data.UNIT_CATEGORIES):
 376                         units = unit_data.get_units(category)
 377                         for unitIndex, unit in enumerate(units):
 378                                 loweredUnit = unit.lower()
 379                                 if lowerInput in loweredUnit:
 380                                         twi = QtGui.QTreeWidgetItem(self._resultsBox)
 381                                         twi.setText(0, category)
 382                                         twi.setText(1, unit)
 383
 384
 385 class Recent(object):
 386
 387         def __init__(self, parent, app):
 388                 self._app = app
 389
 390                 self._resultsBox = QtGui.QTreeWidget()
 391                 self._resultsBox.setHeaderLabels(["Categories", "Units"])
 392                 self._resultsBox.setHeaderHidden(True)
 393                 self._resultsBox.setAlternatingRowColors(True)
 394                 self._resultsBox.itemClicked.connect(self._on_result_clicked)
 395
 396                 self._layout = QtGui.QVBoxLayout()
 397                 self._layout.addWidget(self._resultsBox)
 398
 399                 centralWidget = QtGui.QWidget()
 400                 centralWidget.setLayout(self._layout)
 401
 402                 self._window = QtGui.QMainWindow(parent)
 403                 if parent is not None:
 404                         self._window.setWindowModality(QtCore.Qt.WindowModal)
 405                 self._window.setWindowTitle("%s - Recent" % constants.__pretty_app_name__)
 406                 self._window.setWindowIcon(QtGui.QIcon(self._app.appIconPath))
 407                 self._window.setCentralWidget(centralWidget)
 408
 409                 for cat, unit in self._app.get_recent():
 410                         twi = QtGui.QTreeWidgetItem(self._resultsBox)
 411                         twi.setText(0, cat)
 412                         twi.setText(1, unit)
 413
 414                 self._closeWindowAction = QtGui.QAction(None)
 415                 self._closeWindowAction.setText("Window")
 416                 self._closeWindowAction.setShortcut(QtGui.QKeySequence("CTRL+w"))
 417                 self._closeWindowAction.triggered.connect(self._on_close_window)
 418
 419                 fileMenu = self._window.menuBar().addMenu("&File")
 420                 fileMenu.addAction(self._closeWindowAction)
 421                 fileMenu.addAction(self._app.quitAction)
 422
 423                 viewMenu = self._window.menuBar().addMenu("&View")
 424                 viewMenu.addAction(self._app.fullscreenAction)
 425
 426                 self._window.addAction(self._app.logAction)
 427
 428                 self._window.show()
 429
 430         def close(self):
 431                 self._window.close()
 432
 433         def setFullscreen(self, isFullscreen):
 434                 if isFullscreen:
 435                         self._window.showFullScreen()
 436                 else:
 437                         self._window.showNormal()
 438
 439         @misc_utils.log_exception(_moduleLogger)
 440         def _on_close_window(self, checked = True):
 441                 self.close()
 442
 443         @misc_utils.log_exception(_moduleLogger)
 444         def _on_result_clicked(self, item, columnIndex):
 445                 categoryName = unicode(item.text(0))
 446                 unitName = unicode(item.text(1))
 447                 catWindow = self._app.request_category()
 448                 unitsWindow = catWindow.selectCategory(categoryName)
 449                 unitsWindow.select_unit(unitName)
 450                 self.close()
 451
 452
 453 class UnitData(object):
 454
 455         HEADERS = ["Name", "Value", "", "Unit"]
 456         ALIGNMENT = [QtCore.Qt.AlignLeft, QtCore.Qt.AlignRight, QtCore.Qt.AlignLeft, QtCore.Qt.AlignLeft]
 457
 458         def __init__(self, name, unit, description, conversion):
 459                 self._name = name
 460                 self._unit = unit
 461                 self._description = description
 462                 self._conversion = conversion
 463
 464                 self._value = 0.0
 465                 self._integerDisplay, self._fractionalDisplay = split_number(self._value)
 466
 467         @property
 468         def name(self):
 469                 return self._name
 470
 471         @property
 472         def value(self):
 473                 return self._value
 474
 475         def update_value(self, newValue):
 476                 self._value = newValue
 477                 self._integerDisplay, self._fractionalDisplay = split_number(newValue)
 478
 479         @property
 480         def unit(self):
 481                 return self._unit
 482
 483         @property
 484         def conversion(self):
 485                 return self._conversion
 486
 487         def data(self, column):
 488                 try:
 489                         return [self._name, self._integerDisplay, self._fractionalDisplay, self._unit][column]
 490                 except IndexError:
 491                         return None
 492
 493
 494 class UnitModel(QtCore.QAbstractItemModel):
 495
 496         def __init__(self, categoryName, parent=None):
 497                 super(UnitModel, self).__init__(parent)
 498                 self._categoryName = categoryName
 499                 self._unitData = unit_data.UNIT_DESCRIPTIONS[self._categoryName]
 500
 501                 self._children = []
 502                 for key in unit_data.get_units(self._categoryName):
 503                         conversion, unit, description = self._unitData[key]
 504                         self._children.append(UnitData(key, unit, description, conversion))
 505                 self._sortSettings = None
 506
 507         @misc_utils.log_exception(_moduleLogger)
 508         def columnCount(self, parent):
 509                 if parent.isValid():
 510                         return 0
 511                 else:
 512                         return len(UnitData.HEADERS)
 513
 514         @misc_utils.log_exception(_moduleLogger)
 515         def data(self, index, role):
 516                 if not index.isValid():
 517                         return None
 518                 elif role == QtCore.Qt.TextAlignmentRole:
 519                         return UnitData.ALIGNMENT[index.column()]
 520                 elif role != QtCore.Qt.DisplayRole:
 521                         return None
 522
 523                 item = index.internalPointer()
 524                 if isinstance(item, UnitData):
 525                         return item.data(index.column())
 526                 elif item is UnitData.HEADERS:
 527                         return item[index.column()]
 528
 529         @misc_utils.log_exception(_moduleLogger)
 530         def sort(self, column, order = QtCore.Qt.AscendingOrder):
 531                 self._sortSettings = column, order
 532                 isReverse = order == QtCore.Qt.AscendingOrder
 533                 if column == 0:
 534                         key_func = lambda item: item.name
 535                 elif column in [1, 2]:
 536                         key_func = lambda item: item.value
 537                 elif column == 3:
 538                         key_func = lambda item: item.unit
 539                 self._children.sort(key=key_func, reverse = isReverse)
 540
 541                 self._all_changed()
 542
 543         @misc_utils.log_exception(_moduleLogger)
 544         def flags(self, index):
 545                 if not index.isValid():
 546                         return QtCore.Qt.NoItemFlags
 547
 548                 return QtCore.Qt.ItemIsEnabled | QtCore.Qt.ItemIsSelectable
 549
 550         @misc_utils.log_exception(_moduleLogger)
 551         def headerData(self, section, orientation, role):
 552                 if orientation == QtCore.Qt.Horizontal and role == QtCore.Qt.DisplayRole:
 553                         return UnitData.HEADERS[section]
 554
 555                 return None
 556
 557         @misc_utils.log_exception(_moduleLogger)
 558         def index(self, row, column, parent):
 559                 if not self.hasIndex(row, column, parent):
 560                         return QtCore.QModelIndex()
 561
 562                 if parent.isValid():
 563                         return QtCore.QModelIndex()
 564
 565                 parentItem = UnitData.HEADERS
 566                 childItem = self._children[row]
 567                 if childItem:
 568                         return self.createIndex(row, column, childItem)
 569                 else:
 570                         return QtCore.QModelIndex()
 571
 572         @misc_utils.log_exception(_moduleLogger)
 573         def parent(self, index):
 574                 if not index.isValid():
 575                         return QtCore.QModelIndex()
 576
 577                 childItem = index.internalPointer()
 578                 if isinstance(childItem, UnitData):
 579                         return QtCore.QModelIndex()
 580                 elif childItem is UnitData.HEADERS:
 581                         return None
 582
 583         @misc_utils.log_exception(_moduleLogger)
 584         def rowCount(self, parent):
 585                 if 0 < parent.column():
 586                         return 0
 587
 588                 if not parent.isValid():
 589                         return len(self._children)
 590                 else:
 591                         return len(self._children)
 592
 593         def get_unit(self, index):
 594                 return self._children[index]
 595
 596         def index_unit(self, unitName):
 597                 for i, child in enumerate(self._children):
 598                         if child.name == unitName:
 599                                 return i
 600                 else:
 601                         raise RuntimeError("Unit not found")
 602
 603         def update_values(self, fromIndex, userInput):
 604                 value = self._sanitize_value(userInput)
 605                 func, arg = self._children[fromIndex].conversion
 606                 base = func.to_base(value, arg)
 607                 for i, child in enumerate(self._children):
 608                         if i == fromIndex:
 609                                 continue
 610                         func, arg = child.conversion
 611                         newValue = func.from_base(base, arg)
 612                         child.update_value(newValue)
 613
 614                 if self._sortSettings is not None:
 615                         self.sort(*self._sortSettings)
 616                 self._all_changed()
 617
 618         def _all_changed(self):
 619                 topLeft = self.createIndex(0, 0, self._children[0])
 620                 bottomRight = self.createIndex(len(self._children)-1, len(UnitData.HEADERS)-1, self._children[-1])
 621                 self.dataChanged.emit(topLeft, bottomRight)
 622
 623         def _sanitize_value(self, userEntry):
 624                 if self._categoryName == "Computer Numbers":
 625                         if userEntry == '':
 626                                 value = '0'
 627                         else:
 628                                 value = userEntry
 629                 else:
 630                         if userEntry == '':
 631                                 value = 0.0
 632                         else:
 633                                 value = float(userEntry)
 634                 return value
 635
 636
 637 class UnitWindow(object):
 638
 639         def __init__(self, parent, category, app):
 640                 self._app = app
 641                 self._categoryName = category
 642                 self._selectedIndex = 0
 643
 644                 self._selectedUnitName = QtGui.QLabel()
 645                 self._selectedUnitValue = QtGui.QLineEdit()
 646                 self._selectedUnitValue.textEdited.connect(self._on_value_edited)
 647                 self._selectedUnitSymbol = QtGui.QLabel()
 648
 649                 self._selectedUnitLayout = QtGui.QHBoxLayout()
 650                 self._selectedUnitLayout.addWidget(self._selectedUnitName)
 651                 self._selectedUnitLayout.addWidget(self._selectedUnitValue)
 652                 self._selectedUnitLayout.addWidget(self._selectedUnitSymbol)
 653
 654                 self._unitsModel = UnitModel(self._categoryName)
 655                 self._unitsView = QtGui.QTreeView()
 656                 self._unitsView.setModel(self._unitsModel)
 657                 self._unitsView.clicked.connect(self._on_unit_clicked)
 658                 self._unitsView.setUniformRowHeights(True)
 659                 self._unitsView.header().setSortIndicatorShown(True)
 660                 self._unitsView.header().setClickable(True)
 661                 self._unitsView.setSortingEnabled(True)
 662                 self._unitsView.setAlternatingRowColors(True)
 663                 if True:
 664                         self._unitsView.setHeaderHidden(True)
 665
 666                 self._layout = QtGui.QVBoxLayout()
 667                 self._layout.addLayout(self._selectedUnitLayout)
 668                 self._layout.addWidget(self._unitsView)
 669
 670                 centralWidget = QtGui.QWidget()
 671                 centralWidget.setLayout(self._layout)
 672
 673                 self._window = QtGui.QMainWindow(parent)
 674                 if parent is not None:
 675                         self._window.setWindowModality(QtCore.Qt.WindowModal)
 676                 self._window.setWindowTitle("%s - %s" % (constants.__pretty_app_name__, category))
 677                 self._window.setWindowIcon(QtGui.QIcon(app.appIconPath))
 678                 self._window.setCentralWidget(centralWidget)
 679
 680                 defaultUnitName = self._app.get_recent_unit(self._categoryName)
 681                 if defaultUnitName:
 682                         self.select_unit(defaultUnitName)
 683                 else:
 684                         self._select_unit(0)
 685                 self._unitsModel.sort(1)
 686
 687                 self._sortActionGroup = QtGui.QActionGroup(None)
 688                 self._sortByNameAction = QtGui.QAction(self._sortActionGroup)
 689                 self._sortByNameAction.setText("Sort By Name")
 690                 self._sortByNameAction.setStatusTip("Sort the units by name")
 691                 self._sortByNameAction.setToolTip("Sort the units by name")
 692                 self._sortByValueAction = QtGui.QAction(self._sortActionGroup)
 693                 self._sortByValueAction.setText("Sort By Value")
 694                 self._sortByValueAction.setStatusTip("Sort the units by value")
 695                 self._sortByValueAction.setToolTip("Sort the units by value")
 696                 self._sortByUnitAction = QtGui.QAction(self._sortActionGroup)
 697                 self._sortByUnitAction.setText("Sort By Unit")
 698                 self._sortByUnitAction.setStatusTip("Sort the units by unit")
 699                 self._sortByUnitAction.setToolTip("Sort the units by unit")
 700
 701                 self._sortByValueAction.setChecked(True)
 702
 703                 self._closeWindowAction = QtGui.QAction(None)
 704                 self._closeWindowAction.setText("Close Window")
 705                 self._closeWindowAction.setShortcut(QtGui.QKeySequence("CTRL+w"))
 706                 self._closeWindowAction.triggered.connect(self._on_close_window)
 707
 708                 fileMenu = self._window.menuBar().addMenu("&File")
 709                 fileMenu.addAction(self._closeWindowAction)
 710                 fileMenu.addAction(self._app.quitAction)
 711
 712                 viewMenu = self._window.menuBar().addMenu("&View")
 713                 viewMenu.addAction(self._app.fullscreenAction)
 714                 viewMenu.addSeparator()
 715                 viewMenu.addAction(self._app.jumpAction)
 716                 viewMenu.addAction(self._app.recentAction)
 717                 viewMenu.addSeparator()
 718                 viewMenu.addAction(self._sortByNameAction)
 719                 viewMenu.addAction(self._sortByValueAction)
 720                 viewMenu.addAction(self._sortByUnitAction)
 721
 722                 self._sortByNameAction.triggered.connect(self._on_sort_by_name)
 723                 self._sortByValueAction.triggered.connect(self._on_sort_by_value)
 724                 self._sortByUnitAction.triggered.connect(self._on_sort_by_unit)
 725
 726                 self._window.addAction(self._app.logAction)
 727
 728                 self._window.show()
 729
 730         def close(self):
 731                 self._window.close()
 732
 733         def setFullscreen(self, isFullscreen):
 734                 if isFullscreen:
 735                         self._window.showFullScreen()
 736                 else:
 737                         self._window.showNormal()
 738
 739         def select_unit(self, unitName):
 740                 index = self._unitsModel.index_unit(unitName)
 741                 self._select_unit(index)
 742
 743         @misc_utils.log_exception(_moduleLogger)
 744         def _on_close_window(self, checked = True):
 745                 self.close()
 746
 747         @misc_utils.log_exception(_moduleLogger)
 748         def _on_sort_by_name(self, checked = False):
 749                 self._unitsModel.sort(0, QtCore.Qt.DescendingOrder)
 750
 751         @misc_utils.log_exception(_moduleLogger)
 752         def _on_sort_by_value(self, checked = False):
 753                 self._unitsModel.sort(1)
 754
 755         @misc_utils.log_exception(_moduleLogger)
 756         def _on_sort_by_unit(self, checked = False):
 757                 self._unitsModel.sort(3, QtCore.Qt.DescendingOrder)
 758
 759         @misc_utils.log_exception(_moduleLogger)
 760         def _on_unit_clicked(self, index):
 761                 self._select_unit(index.row())
 762
 763         @misc_utils.log_exception(_moduleLogger)
 764         def _on_value_edited(self, *args):
 765                 userInput = self._selectedUnitValue.text()
 766                 self._unitsModel.update_values(self._selectedIndex, str(userInput))
 767
 768         def _select_unit(self, index):
 769                 unit = self._unitsModel.get_unit(index)
 770                 self._selectedUnitName.setText(unit.name)
 771                 self._selectedUnitValue.setText(str(unit.value))
 772                 self._selectedUnitSymbol.setText(unit.unit)
 773
 774                 self._selectedIndex = index
 775                 qindex = self._unitsModel.createIndex(index, 0, self._unitsModel.get_unit(index))
 776                 self._unitsView.scrollTo(qindex)
 777                 self._app.add_recent(self._categoryName, self._unitsModel.get_unit(index).name)
 778
 779
 780 def run_gonvert():
 781         app = QtGui.QApplication([])
 782         handle = Gonvert()
 783         return app.exec_()
 784
 785
 786 if __name__ == "__main__":
 787         logging.basicConfig(level = logging.DEBUG)
 788         try:
 789                 os.makedirs(constants._data_path_)
 790         except OSError, e:
 791                 if e.errno != 17:
 792                         raise
 793
 794         val = run_gonvert()
 795         sys.exit(val)