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         # @todo Add menus to all windows
  57         # @bug Fix the resurrecting window problem
  58         # @todo Ctrl+l support
  59         # @todo Unit conversion window: focus always on input, arrows switch units
  60
  61         _DATA_PATHS = [
  62                 os.path.dirname(__file__),
  63                 os.path.join(os.path.dirname(__file__), "../data"),
  64                 os.path.join(os.path.dirname(__file__), "../lib"),
  65                 '/usr/share/gonvert',
  66                 '/usr/lib/gonvert',
  67         ]
  68
  69         def __init__(self):
  70                 self._dataPath = ""
  71                 for dataPath in self._DATA_PATHS:
  72                         appIconPath = os.path.join(dataPath, "pixmaps", "gonvert.png")
  73                         if os.path.isfile(appIconPath):
  74                                 self._dataPath = dataPath
  75                                 break
  76                 else:
  77                         raise RuntimeError("UI Descriptor not found!")
  78                 self._appIconPath = appIconPath
  79                 self._recent = []
  80                 self._isFullscreen = False
  81
  82                 self._jumpWindow = None
  83                 self._recentWindow = None
  84                 self._catWindow = None
  85
  86                 self._jumpAction = QtGui.QAction(None)
  87                 self._jumpAction.setText("Quick Jump")
  88                 self._jumpAction.setStatusTip("Search for a unit and jump straight to it")
  89                 self._jumpAction.setToolTip("Search for a unit and jump straight to it")
  90                 self._jumpAction.setShortcut(QtGui.QKeySequence("CTRL+j"))
  91                 self._jumpAction.triggered.connect(self._on_jump_start)
  92
  93                 self._recentAction = QtGui.QAction(None)
  94                 self._recentAction.setText("Recent Units")
  95                 self._recentAction.setStatusTip("View the recent units")
  96                 self._recentAction.setToolTip("View the recent units")
  97                 self._recentAction.setShortcut(QtGui.QKeySequence("CTRL+r"))
  98                 self._recentAction.triggered.connect(self._on_recent_start)
  99
 100                 self._fullscreenAction = QtGui.QAction(None)
 101                 self._fullscreenAction.setText("Toggle Fullscreen")
 102                 self._fullscreenAction.setShortcut(QtGui.QKeySequence("CTRL+Enter"))
 103                 self._fullscreenAction.triggered.connect(self._on_toggle_fullscreen)
 104
 105                 self._quitAction = QtGui.QAction(None)
 106                 self._quitAction.setText("Quit")
 107                 self._quitAction.setShortcut(QtGui.QKeySequence("CTRL+q"))
 108                 self._quitAction.triggered.connect(self._on_quit)
 109
 110                 self.request_category()
 111
 112         def request_category(self):
 113                 if self._catWindow is not None:
 114                         self._catWindow.close()
 115                         self._catWindow = None
 116                 self._catWindow = CategoryWindow(None, self)
 117                 return self._catWindow
 118
 119         def search_units(self):
 120                 if self._jumpWindow is not None:
 121                         self._jumpWindow.close()
 122                         self._jumpWindow = None
 123                 self._jumpWindow = QuickJump(None, self)
 124                 return self._jumpWindow
 125
 126         def show_recent(self):
 127                 if self._recentWindow is not None:
 128                         self._recentWindow.close()
 129                         self._recentWindow = None
 130                 self._recentWindow = Recent(None, self)
 131                 return self._recentWindow
 132
 133         def add_recent(self, categoryName, unitName):
 134                 catUnit = categoryName, unitName
 135                 try:
 136                         self._recent.remove(catUnit)
 137                 except ValueError:
 138                         pass # ignore if its not already in the recent history
 139                 self._recent.append(catUnit)
 140
 141         def get_recent_unit(self, categoryName):
 142                 for catName, unitName in reversed(self._recent):
 143                         if catName == categoryName:
 144                                 return unitName
 145                 else:
 146                         return ""
 147
 148         def get_recent(self):
 149                 return reversed(self._recent)
 150
 151         @property
 152         def appIconPath(self):
 153                 return self._appIconPath
 154
 155         @property
 156         def jumpAction(self):
 157                 return self._jumpAction
 158
 159         @property
 160         def recentAction(self):
 161                 return self._recentAction
 162
 163         @property
 164         def fullscreenAction(self):
 165                 return self._fullscreenAction
 166
 167         @property
 168         def quitAction(self):
 169                 return self._quitAction
 170
 171         def _walk_children(self):
 172                 if self._catWindow is not None:
 173                         yield self._catWindow
 174                 if self._jumpWindow is not None:
 175                         yield self._jumpWindow
 176                 if self._recentWindow is not None:
 177                         yield self._recentWindow
 178
 179         @misc_utils.log_exception(_moduleLogger)
 180         def _on_toggle_fullscreen(self, checked = False):
 181                 self._isFullscreen = not self._isFullscreen
 182                 for window in self._walk_children():
 183                         window.setFullscreen(self._isFullscreen)
 184
 185         @misc_utils.log_exception(_moduleLogger)
 186         def _on_jump_start(self, checked = False):
 187                 self.search_units()
 188
 189         @misc_utils.log_exception(_moduleLogger)
 190         def _on_recent_start(self, checked = False):
 191                 self.show_recent()
 192
 193         @misc_utils.log_exception(_moduleLogger)
 194         def _on_quit(self, checked = False):
 195                 for window in self._walk_children():
 196                         window.close()
 197
 198
 199 class CategoryWindow(object):
 200
 201         def __init__(self, parent, app):
 202                 self._app = app
 203                 self._unitWindow = None
 204
 205                 self._categories = QtGui.QTreeWidget()
 206                 self._categories.setHeaderLabels(["Categories"])
 207                 self._categories.itemClicked.connect(self._on_category_clicked)
 208                 self._categories.setHeaderHidden(True)
 209                 self._categories.setAlternatingRowColors(True)
 210                 for catName in unit_data.UNIT_CATEGORIES:
 211                         twi = QtGui.QTreeWidgetItem(self._categories)
 212                         twi.setText(0, catName)
 213
 214                 self._layout = QtGui.QVBoxLayout()
 215                 self._layout.addWidget(self._categories)
 216
 217                 centralWidget = QtGui.QWidget()
 218                 centralWidget.setLayout(self._layout)
 219
 220                 self._window = QtGui.QMainWindow(parent)
 221                 if parent is not None:
 222                         self._window.setWindowModality(QtCore.Qt.WindowModal)
 223                 self._window.setWindowTitle("%s - Categories" % constants.__pretty_app_name__)
 224                 self._window.setWindowIcon(QtGui.QIcon(self._app.appIconPath))
 225                 self._window.setCentralWidget(centralWidget)
 226
 227                 self._closeWindowAction = QtGui.QAction(None)
 228                 self._closeWindowAction.setText("Window")
 229                 self._closeWindowAction.setShortcut(QtGui.QKeySequence("CTRL+w"))
 230                 self._closeWindowAction.triggered.connect(self._on_close_window)
 231
 232                 fileMenu = self._window.menuBar().addMenu("&File")
 233                 fileMenu.addAction(self._closeWindowAction)
 234                 fileMenu.addAction(self._app.quitAction)
 235
 236                 viewMenu = self._window.menuBar().addMenu("&View")
 237                 viewMenu.addAction(self._app.fullscreenAction)
 238                 viewMenu.addSeparator()
 239                 viewMenu.addAction(self._app.jumpAction)
 240                 viewMenu.addAction(self._app.recentAction)
 241
 242                 self._window.show()
 243
 244         def walk_children(self):
 245                 if self._unitWindow is not None:
 246                         yield self._unitWindow
 247
 248         def close(self):
 249                 for child in self.walk_children():
 250                         child.close()
 251                 self._window.close()
 252
 253         def selectCategory(self, categoryName):
 254                 for child in self.walk_children():
 255                         child.close()
 256                 self._unitWindow = UnitWindow(self._window, categoryName, self._app)
 257                 return self._unitWindow
 258
 259         def setFullscreen(self, isFullscreen):
 260                 if isFullscreen:
 261                         self._window.showFullScreen()
 262                 else:
 263                         self._window.showNormal()
 264                 for child in self.walk_children():
 265                         child.setFullscreen(isFullscreen)
 266
 267         @misc_utils.log_exception(_moduleLogger)
 268         def _on_close_window(self, checked = True):
 269                 self.close()
 270
 271         @misc_utils.log_exception(_moduleLogger)
 272         def _on_category_clicked(self, item, columnIndex):
 273                 categoryName = unicode(item.text(0))
 274                 self.selectCategory(categoryName)
 275
 276
 277 class QuickJump(object):
 278
 279         MINIMAL_ENTRY = 3
 280
 281         def __init__(self, parent, app):
 282                 self._app = app
 283
 284                 self._searchLabel = QtGui.QLabel("Search:")
 285                 self._searchEntry = QtGui.QLineEdit("")
 286                 self._searchEntry.textEdited.connect(self._on_search_edited)
 287
 288                 self._entryLayout = QtGui.QHBoxLayout()
 289                 self._entryLayout.addWidget(self._searchLabel)
 290                 self._entryLayout.addWidget(self._searchEntry)
 291
 292                 self._resultsBox = QtGui.QTreeWidget()
 293                 self._resultsBox.setHeaderLabels(["Categories", "Units"])
 294                 self._resultsBox.setHeaderHidden(True)
 295                 self._resultsBox.setAlternatingRowColors(True)
 296                 self._resultsBox.itemClicked.connect(self._on_result_clicked)
 297
 298                 self._layout = QtGui.QVBoxLayout()
 299                 self._layout.addLayout(self._entryLayout)
 300                 self._layout.addWidget(self._resultsBox)
 301
 302                 centralWidget = QtGui.QWidget()
 303                 centralWidget.setLayout(self._layout)
 304
 305                 self._window = QtGui.QMainWindow(parent)
 306                 if parent is not None:
 307                         self._window.setWindowModality(QtCore.Qt.WindowModal)
 308                 self._window.setWindowTitle("%s - Quick Jump" % constants.__pretty_app_name__)
 309                 self._window.setWindowIcon(QtGui.QIcon(self._app.appIconPath))
 310                 self._window.setCentralWidget(centralWidget)
 311
 312                 self._closeWindowAction = QtGui.QAction(None)
 313                 self._closeWindowAction.setText("Window")
 314                 self._closeWindowAction.setShortcut(QtGui.QKeySequence("CTRL+w"))
 315                 self._closeWindowAction.triggered.connect(self._on_close_window)
 316
 317                 fileMenu = self._window.menuBar().addMenu("&File")
 318                 fileMenu.addAction(self._closeWindowAction)
 319                 fileMenu.addAction(self._app.quitAction)
 320
 321                 viewMenu = self._window.menuBar().addMenu("&View")
 322                 viewMenu.addAction(self._app.fullscreenAction)
 323
 324                 self._window.show()
 325
 326         def close(self):
 327                 self._window.close()
 328
 329         def setFullscreen(self, isFullscreen):
 330                 if isFullscreen:
 331                         self._window.showFullScreen()
 332                 else:
 333                         self._window.showNormal()
 334
 335         @misc_utils.log_exception(_moduleLogger)
 336         def _on_close_window(self, checked = True):
 337                 self.close()
 338
 339         @misc_utils.log_exception(_moduleLogger)
 340         def _on_result_clicked(self, item, columnIndex):
 341                 categoryName = unicode(item.text(0))
 342                 unitName = unicode(item.text(1))
 343                 catWindow = self._app.request_category()
 344                 unitsWindow = catWindow.selectCategory(categoryName)
 345                 unitsWindow.select_unit(unitName)
 346                 self.close()
 347
 348         @misc_utils.log_exception(_moduleLogger)
 349         def _on_search_edited(self, *args):
 350                 userInput = self._searchEntry.text()
 351                 if len(userInput) <  self.MINIMAL_ENTRY:
 352                         return
 353
 354                 self._resultsBox.clear()
 355                 lowerInput = str(userInput).lower()
 356                 for catIndex, category in enumerate(unit_data.UNIT_CATEGORIES):
 357                         units = unit_data.get_units(category)
 358                         for unitIndex, unit in enumerate(units):
 359                                 loweredUnit = unit.lower()
 360                                 if lowerInput in loweredUnit:
 361                                         twi = QtGui.QTreeWidgetItem(self._resultsBox)
 362                                         twi.setText(0, category)
 363                                         twi.setText(1, unit)
 364
 365
 366 class Recent(object):
 367
 368         def __init__(self, parent, app):
 369                 self._app = app
 370
 371                 self._resultsBox = QtGui.QTreeWidget()
 372                 self._resultsBox.setHeaderLabels(["Categories", "Units"])
 373                 self._resultsBox.setHeaderHidden(True)
 374                 self._resultsBox.setAlternatingRowColors(True)
 375                 self._resultsBox.itemClicked.connect(self._on_result_clicked)
 376
 377                 self._layout = QtGui.QVBoxLayout()
 378                 self._layout.addWidget(self._resultsBox)
 379
 380                 centralWidget = QtGui.QWidget()
 381                 centralWidget.setLayout(self._layout)
 382
 383                 self._window = QtGui.QMainWindow(parent)
 384                 if parent is not None:
 385                         self._window.setWindowModality(QtCore.Qt.WindowModal)
 386                 self._window.setWindowTitle("%s - Recent" % constants.__pretty_app_name__)
 387                 self._window.setWindowIcon(QtGui.QIcon(self._app.appIconPath))
 388                 self._window.setCentralWidget(centralWidget)
 389
 390                 for cat, unit in self._app.get_recent():
 391                         twi = QtGui.QTreeWidgetItem(self._resultsBox)
 392                         twi.setText(0, cat)
 393                         twi.setText(1, unit)
 394
 395                 self._closeWindowAction = QtGui.QAction(None)
 396                 self._closeWindowAction.setText("Window")
 397                 self._closeWindowAction.setShortcut(QtGui.QKeySequence("CTRL+w"))
 398                 self._closeWindowAction.triggered.connect(self._on_close_window)
 399
 400                 fileMenu = self._window.menuBar().addMenu("&File")
 401                 fileMenu.addAction(self._closeWindowAction)
 402                 fileMenu.addAction(self._app.quitAction)
 403
 404                 viewMenu = self._window.menuBar().addMenu("&View")
 405                 viewMenu.addAction(self._app.fullscreenAction)
 406
 407                 self._window.show()
 408
 409         def close(self):
 410                 self._window.close()
 411
 412         def setFullscreen(self, isFullscreen):
 413                 if isFullscreen:
 414                         self._window.showFullScreen()
 415                 else:
 416                         self._window.showNormal()
 417
 418         @misc_utils.log_exception(_moduleLogger)
 419         def _on_close_window(self, checked = True):
 420                 self.close()
 421
 422         @misc_utils.log_exception(_moduleLogger)
 423         def _on_result_clicked(self, item, columnIndex):
 424                 categoryName = unicode(item.text(0))
 425                 unitName = unicode(item.text(1))
 426                 catWindow = self._app.request_category()
 427                 unitsWindow = catWindow.selectCategory(categoryName)
 428                 unitsWindow.select_unit(unitName)
 429                 self.close()
 430
 431
 432 class UnitData(object):
 433
 434         HEADERS = ["Name", "Value", "", "Unit"]
 435         ALIGNMENT = [QtCore.Qt.AlignLeft, QtCore.Qt.AlignRight, QtCore.Qt.AlignLeft, QtCore.Qt.AlignLeft]
 436
 437         def __init__(self, name, unit, description, conversion):
 438                 self._name = name
 439                 self._unit = unit
 440                 self._description = description
 441                 self._conversion = conversion
 442
 443                 self._value = 0.0
 444                 self._integerDisplay, self._fractionalDisplay = split_number(self._value)
 445
 446         @property
 447         def name(self):
 448                 return self._name
 449
 450         @property
 451         def value(self):
 452                 return self._value
 453
 454         def update_value(self, newValue):
 455                 self._value = newValue
 456                 self._integerDisplay, self._fractionalDisplay = split_number(newValue)
 457
 458         @property
 459         def unit(self):
 460                 return self._unit
 461
 462         @property
 463         def conversion(self):
 464                 return self._conversion
 465
 466         def data(self, column):
 467                 try:
 468                         return [self._name, self._integerDisplay, self._fractionalDisplay, self._unit][column]
 469                 except IndexError:
 470                         return None
 471
 472
 473 class UnitModel(QtCore.QAbstractItemModel):
 474
 475         def __init__(self, categoryName, parent=None):
 476                 super(UnitModel, self).__init__(parent)
 477                 self._categoryName = categoryName
 478                 self._unitData = unit_data.UNIT_DESCRIPTIONS[self._categoryName]
 479
 480                 self._children = []
 481                 for key in unit_data.get_units(self._categoryName):
 482                         conversion, unit, description = self._unitData[key]
 483                         self._children.append(UnitData(key, unit, description, conversion))
 484                 self._sortSettings = None
 485
 486         @misc_utils.log_exception(_moduleLogger)
 487         def columnCount(self, parent):
 488                 if parent.isValid():
 489                         return 0
 490                 else:
 491                         return len(UnitData.HEADERS)
 492
 493         @misc_utils.log_exception(_moduleLogger)
 494         def data(self, index, role):
 495                 if not index.isValid():
 496                         return None
 497                 elif role == QtCore.Qt.TextAlignmentRole:
 498                         return UnitData.ALIGNMENT[index.column()]
 499                 elif role != QtCore.Qt.DisplayRole:
 500                         return None
 501
 502                 item = index.internalPointer()
 503                 if isinstance(item, UnitData):
 504                         return item.data(index.column())
 505                 elif item is UnitData.HEADERS:
 506                         return item[index.column()]
 507
 508         @misc_utils.log_exception(_moduleLogger)
 509         def sort(self, column, order = QtCore.Qt.AscendingOrder):
 510                 self._sortSettings = column, order
 511                 isReverse = order == QtCore.Qt.AscendingOrder
 512                 if column == 0:
 513                         key_func = lambda item: item.name
 514                 elif column in [1, 2]:
 515                         key_func = lambda item: item.value
 516                 elif column == 3:
 517                         key_func = lambda item: item.unit
 518                 self._children.sort(key=key_func, reverse = isReverse)
 519
 520                 self._all_changed()
 521
 522         @misc_utils.log_exception(_moduleLogger)
 523         def flags(self, index):
 524                 if not index.isValid():
 525                         return QtCore.Qt.NoItemFlags
 526
 527                 return QtCore.Qt.ItemIsEnabled | QtCore.Qt.ItemIsSelectable
 528
 529         @misc_utils.log_exception(_moduleLogger)
 530         def headerData(self, section, orientation, role):
 531                 if orientation == QtCore.Qt.Horizontal and role == QtCore.Qt.DisplayRole:
 532                         return UnitData.HEADERS[section]
 533
 534                 return None
 535
 536         @misc_utils.log_exception(_moduleLogger)
 537         def index(self, row, column, parent):
 538                 if not self.hasIndex(row, column, parent):
 539                         return QtCore.QModelIndex()
 540
 541                 if parent.isValid():
 542                         return QtCore.QModelIndex()
 543
 544                 parentItem = UnitData.HEADERS
 545                 childItem = self._children[row]
 546                 if childItem:
 547                         return self.createIndex(row, column, childItem)
 548                 else:
 549                         return QtCore.QModelIndex()
 550
 551         @misc_utils.log_exception(_moduleLogger)
 552         def parent(self, index):
 553                 if not index.isValid():
 554                         return QtCore.QModelIndex()
 555
 556                 childItem = index.internalPointer()
 557                 if isinstance(childItem, UnitData):
 558                         return QtCore.QModelIndex()
 559                 elif childItem is UnitData.HEADERS:
 560                         return None
 561
 562         @misc_utils.log_exception(_moduleLogger)
 563         def rowCount(self, parent):
 564                 if 0 < parent.column():
 565                         return 0
 566
 567                 if not parent.isValid():
 568                         return len(self._children)
 569                 else:
 570                         return len(self._children)
 571
 572         def get_unit(self, index):
 573                 return self._children[index]
 574
 575         def index_unit(self, unitName):
 576                 for i, child in enumerate(self._children):
 577                         if child.name == unitName:
 578                                 return i
 579                 else:
 580                         raise RuntimeError("Unit not found")
 581
 582         def update_values(self, fromIndex, userInput):
 583                 value = self._sanitize_value(userInput)
 584                 func, arg = self._children[fromIndex].conversion
 585                 base = func.to_base(value, arg)
 586                 for i, child in enumerate(self._children):
 587                         if i == fromIndex:
 588                                 continue
 589                         func, arg = child.conversion
 590                         newValue = func.from_base(base, arg)
 591                         child.update_value(newValue)
 592
 593                 if self._sortSettings is not None:
 594                         self.sort(*self._sortSettings)
 595                 self._all_changed()
 596
 597         def _all_changed(self):
 598                 topLeft = self.createIndex(0, 0, self._children[0])
 599                 bottomRight = self.createIndex(len(self._children)-1, len(UnitData.HEADERS)-1, self._children[-1])
 600                 self.dataChanged.emit(topLeft, bottomRight)
 601
 602         def _sanitize_value(self, userEntry):
 603                 if self._categoryName == "Computer Numbers":
 604                         if userEntry == '':
 605                                 value = '0'
 606                         else:
 607                                 value = userEntry
 608                 else:
 609                         if userEntry == '':
 610                                 value = 0.0
 611                         else:
 612                                 value = float(userEntry)
 613                 return value
 614
 615
 616 class UnitWindow(object):
 617
 618         def __init__(self, parent, category, app):
 619                 self._app = app
 620                 self._categoryName = category
 621                 self._selectedIndex = 0
 622
 623                 self._selectedUnitName = QtGui.QLabel()
 624                 self._selectedUnitValue = QtGui.QLineEdit()
 625                 self._selectedUnitValue.textEdited.connect(self._on_value_edited)
 626                 self._selectedUnitSymbol = QtGui.QLabel()
 627
 628                 self._selectedUnitLayout = QtGui.QHBoxLayout()
 629                 self._selectedUnitLayout.addWidget(self._selectedUnitName)
 630                 self._selectedUnitLayout.addWidget(self._selectedUnitValue)
 631                 self._selectedUnitLayout.addWidget(self._selectedUnitSymbol)
 632
 633                 self._unitsModel = UnitModel(self._categoryName)
 634                 self._unitsView = QtGui.QTreeView()
 635                 self._unitsView.setModel(self._unitsModel)
 636                 self._unitsView.clicked.connect(self._on_unit_clicked)
 637                 self._unitsView.setUniformRowHeights(True)
 638                 self._unitsView.header().setSortIndicatorShown(True)
 639                 self._unitsView.header().setClickable(True)
 640                 self._unitsView.setSortingEnabled(True)
 641                 self._unitsView.setAlternatingRowColors(True)
 642                 if True:
 643                         self._unitsView.setHeaderHidden(True)
 644
 645                 self._layout = QtGui.QVBoxLayout()
 646                 self._layout.addLayout(self._selectedUnitLayout)
 647                 self._layout.addWidget(self._unitsView)
 648
 649                 centralWidget = QtGui.QWidget()
 650                 centralWidget.setLayout(self._layout)
 651
 652                 self._window = QtGui.QMainWindow(parent)
 653                 if parent is not None:
 654                         self._window.setWindowModality(QtCore.Qt.WindowModal)
 655                 self._window.setWindowTitle("%s - %s" % (constants.__pretty_app_name__, category))
 656                 self._window.setWindowIcon(QtGui.QIcon(app.appIconPath))
 657                 self._window.setCentralWidget(centralWidget)
 658
 659                 defaultUnitName = self._app.get_recent_unit(self._categoryName)
 660                 if defaultUnitName:
 661                         self.select_unit(defaultUnitName)
 662                 else:
 663                         self._select_unit(0)
 664                 self._unitsModel.sort(1)
 665
 666                 self._sortActionGroup = QtGui.QActionGroup(None)
 667                 self._sortByNameAction = QtGui.QAction(self._sortActionGroup)
 668                 self._sortByNameAction.setText("Sort By Name")
 669                 self._sortByNameAction.setStatusTip("Sort the units by name")
 670                 self._sortByNameAction.setToolTip("Sort the units by name")
 671                 self._sortByValueAction = QtGui.QAction(self._sortActionGroup)
 672                 self._sortByValueAction.setText("Sort By Value")
 673                 self._sortByValueAction.setStatusTip("Sort the units by value")
 674                 self._sortByValueAction.setToolTip("Sort the units by value")
 675                 self._sortByUnitAction = QtGui.QAction(self._sortActionGroup)
 676                 self._sortByUnitAction.setText("Sort By Unit")
 677                 self._sortByUnitAction.setStatusTip("Sort the units by unit")
 678                 self._sortByUnitAction.setToolTip("Sort the units by unit")
 679
 680                 self._sortByValueAction.setChecked(True)
 681
 682                 self._closeWindowAction = QtGui.QAction(None)
 683                 self._closeWindowAction.setText("Close Window")
 684                 self._closeWindowAction.setShortcut(QtGui.QKeySequence("CTRL+w"))
 685                 self._closeWindowAction.triggered.connect(self._on_close_window)
 686
 687                 fileMenu = self._window.menuBar().addMenu("&File")
 688                 fileMenu.addAction(self._closeWindowAction)
 689                 fileMenu.addAction(self._app.quitAction)
 690
 691                 viewMenu = self._window.menuBar().addMenu("&View")
 692                 viewMenu.addAction(self._app.fullscreenAction)
 693                 viewMenu.addSeparator()
 694                 viewMenu.addAction(self._app.jumpAction)
 695                 viewMenu.addAction(self._app.recentAction)
 696                 viewMenu.addSeparator()
 697                 viewMenu.addAction(self._sortByNameAction)
 698                 viewMenu.addAction(self._sortByValueAction)
 699                 viewMenu.addAction(self._sortByUnitAction)
 700
 701                 self._sortByNameAction.triggered.connect(self._on_sort_by_name)
 702                 self._sortByValueAction.triggered.connect(self._on_sort_by_value)
 703                 self._sortByUnitAction.triggered.connect(self._on_sort_by_unit)
 704
 705                 self._window.show()
 706
 707         def close(self):
 708                 self._window.close()
 709
 710         def setFullscreen(self, isFullscreen):
 711                 if isFullscreen:
 712                         self._window.showFullScreen()
 713                 else:
 714                         self._window.showNormal()
 715
 716         def select_unit(self, unitName):
 717                 index = self._unitsModel.index_unit(unitName)
 718                 self._select_unit(index)
 719
 720         @misc_utils.log_exception(_moduleLogger)
 721         def _on_close_window(self, checked = True):
 722                 self.close()
 723
 724         @misc_utils.log_exception(_moduleLogger)
 725         def _on_sort_by_name(self, checked = False):
 726                 self._unitsModel.sort(0, QtCore.Qt.DescendingOrder)
 727
 728         @misc_utils.log_exception(_moduleLogger)
 729         def _on_sort_by_value(self, checked = False):
 730                 self._unitsModel.sort(1)
 731
 732         @misc_utils.log_exception(_moduleLogger)
 733         def _on_sort_by_unit(self, checked = False):
 734                 self._unitsModel.sort(3, QtCore.Qt.DescendingOrder)
 735
 736         @misc_utils.log_exception(_moduleLogger)
 737         def _on_unit_clicked(self, index):
 738                 self._select_unit(index.row())
 739
 740         @misc_utils.log_exception(_moduleLogger)
 741         def _on_value_edited(self, *args):
 742                 userInput = self._selectedUnitValue.text()
 743                 self._unitsModel.update_values(self._selectedIndex, str(userInput))
 744
 745         def _select_unit(self, index):
 746                 unit = self._unitsModel.get_unit(index)
 747                 self._selectedUnitName.setText(unit.name)
 748                 self._selectedUnitValue.setText(str(unit.value))
 749                 self._selectedUnitSymbol.setText(unit.unit)
 750
 751                 self._selectedIndex = index
 752                 qindex = self._unitsModel.createIndex(index, 0, self._unitsModel.get_unit(index))
 753                 self._unitsView.scrollTo(qindex)
 754                 self._app.add_recent(self._categoryName, self._unitsModel.get_unit(index).name)
 755
 756
 757 def run_gonvert():
 758         app = QtGui.QApplication([])
 759         handle = Gonvert()
 760         return app.exec_()
 761
 762
 763 if __name__ == "__main__":
 764         logging.basicConfig(level = logging.DEBUG)
 765         try:
 766                 os.makedirs(constants._data_path_)
 767         except OSError, e:
 768                 if e.errno != 17:
 769                         raise
 770
 771         val = run_gonvert()
 772         sys.exit(val)