vcs.maemo.org Git - ejpi/blob - src/ejpi_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 simplejson
   9 import string
  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
  19 from libraries import qtpie
  20 from libraries import qtpieboard
  21 import plugin_utils
  22 import history
  23 import qhistory
  24
  25
  26 _moduleLogger = logging.getLogger(__name__)
  27
  28
  29 IS_MAEMO = True
  30
  31
  32 PLUGIN_SEARCH_PATHS = [
  33         os.path.join(os.path.dirname(__file__), "plugins/"),
  34 ]
  35
  36
  37 class Calculator(object):
  38
  39         def __init__(self, app):
  40                 self._app = app
  41                 self._recent = []
  42                 self._hiddenCategories = set()
  43                 self._hiddenUnits = {}
  44                 self._clipboard = QtGui.QApplication.clipboard()
  45                 self._mainWindow = None
  46
  47                 self._fullscreenAction = QtGui.QAction(None)
  48                 self._fullscreenAction.setText("Fullscreen")
  49                 self._fullscreenAction.setCheckable(True)
  50                 self._fullscreenAction.setShortcut(QtGui.QKeySequence("CTRL+Enter"))
  51                 self._fullscreenAction.toggled.connect(self._on_toggle_fullscreen)
  52
  53                 self._logAction = QtGui.QAction(None)
  54                 self._logAction.setText("Log")
  55                 self._logAction.setShortcut(QtGui.QKeySequence("CTRL+l"))
  56                 self._logAction.triggered.connect(self._on_log)
  57
  58                 self._quitAction = QtGui.QAction(None)
  59                 self._quitAction.setText("Quit")
  60                 self._quitAction.setShortcut(QtGui.QKeySequence("CTRL+q"))
  61                 self._quitAction.triggered.connect(self._on_quit)
  62
  63                 self._app.lastWindowClosed.connect(self._on_app_quit)
  64                 self.load_settings()
  65
  66                 self._mainWindow = MainWindow(None, self)
  67                 self._mainWindow.window.destroyed.connect(self._on_child_close)
  68
  69         def load_settings(self):
  70                 try:
  71                         with open(constants._user_settings_, "r") as settingsFile:
  72                                 settings = simplejson.load(settingsFile)
  73                 except IOError, e:
  74                         _moduleLogger.info("No settings")
  75                         settings = {}
  76                 except ValueError:
  77                         _moduleLogger.info("Settings were corrupt")
  78                         settings = {}
  79
  80                 self._fullscreenAction.setChecked(settings.get("isFullScreen", False))
  81
  82         def save_settings(self):
  83                 settings = {
  84                         "isFullScreen": self._fullscreenAction.isChecked(),
  85                 }
  86                 with open(constants._user_settings_, "w") as settingsFile:
  87                         simplejson.dump(settings, settingsFile)
  88
  89         @property
  90         def fullscreenAction(self):
  91                 return self._fullscreenAction
  92
  93         @property
  94         def logAction(self):
  95                 return self._logAction
  96
  97         @property
  98         def quitAction(self):
  99                 return self._quitAction
 100
 101         def _close_windows(self):
 102                 if self._mainWindow is not None:
 103                         self._mainWindow.window.destroyed.disconnect(self._on_child_close)
 104                         self._mainWindow.close()
 105                         self._mainWindow = None
 106
 107         @misc_utils.log_exception(_moduleLogger)
 108         def _on_app_quit(self, checked = False):
 109                 self.save_settings()
 110
 111         @misc_utils.log_exception(_moduleLogger)
 112         def _on_child_close(self, obj = None):
 113                 self._mainWindow = None
 114
 115         @misc_utils.log_exception(_moduleLogger)
 116         def _on_toggle_fullscreen(self, checked = False):
 117                 for window in self._walk_children():
 118                         window.set_fullscreen(checked)
 119
 120         @misc_utils.log_exception(_moduleLogger)
 121         def _on_log(self, checked = False):
 122                 with open(constants._user_logpath_, "r") as f:
 123                         logLines = f.xreadlines()
 124                         log = "".join(logLines)
 125                         self._clipboard.setText(log)
 126
 127         @misc_utils.log_exception(_moduleLogger)
 128         def _on_quit(self, checked = False):
 129                 self._close_windows()
 130
 131
 132 class QErrorDisplay(object):
 133
 134         def __init__(self):
 135                 self._messages = []
 136
 137                 icon = QtGui.QIcon.fromTheme("gtk-dialog-error")
 138                 self._severityIcon = icon.pixmap(32, 32)
 139                 self._severityLabel = QtGui.QLabel()
 140                 self._severityLabel.setPixmap(self._severityIcon)
 141
 142                 self._message = QtGui.QLabel()
 143                 self._message.setText("Boo")
 144
 145                 icon = QtGui.QIcon.fromTheme("gtk-close")
 146                 self._closeLabel = QtGui.QPushButton(icon, "")
 147                 self._closeLabel.clicked.connect(self._on_close)
 148
 149                 self._controlLayout = QtGui.QHBoxLayout()
 150                 self._controlLayout.addWidget(self._severityLabel)
 151                 self._controlLayout.addWidget(self._message)
 152                 self._controlLayout.addWidget(self._closeLabel)
 153
 154                 self._topLevelLayout = QtGui.QHBoxLayout()
 155                 self._topLevelLayout.addLayout(self._controlLayout)
 156                 self._widget = QtGui.QWidget()
 157                 self._widget.setLayout(self._topLevelLayout)
 158                 self._hide_message()
 159
 160         @property
 161         def toplevel(self):
 162                 return self._widget
 163
 164         def push_message(self, message):
 165                 self._messages.append(message)
 166                 if 1 == len(self._messages):
 167                         self._show_message(message)
 168
 169         def push_exception(self):
 170                 userMessage = str(sys.exc_info()[1])
 171                 _moduleLogger.exception(userMessage)
 172                 self.push_message(userMessage)
 173
 174         def pop_message(self):
 175                 del self._messages[0]
 176                 if 0 == len(self._messages):
 177                         self._hide_message()
 178                 else:
 179                         self._message.setText(self._messages[0])
 180
 181         def _on_close(self, *args):
 182                 self.pop_message()
 183
 184         def _show_message(self, message):
 185                 self._message.setText(message)
 186                 self._widget.show()
 187
 188         def _hide_message(self):
 189                 self._message.setText("")
 190                 self._widget.hide()
 191
 192
 193 class QValueEntry(object):
 194
 195         def __init__(self):
 196                 self._widget = QtGui.QLineEdit("")
 197                 maeqt.mark_numbers_preferred(self._widget)
 198
 199         @property
 200         def toplevel(self):
 201                 return self._widget
 202
 203         @property
 204         def entry(self):
 205                 return self._widget
 206
 207         def get_value(self):
 208                 value = str(self._widget.text()).strip()
 209                 if any(
 210                         0 < value.find(whitespace)
 211                         for whitespace in string.whitespace
 212                 ):
 213                         self.clear()
 214                         raise ValueError('Invalid input "%s"' % value)
 215                 return value
 216
 217         def set_value(self, value):
 218                 value = value.strip()
 219                 if any(
 220                         0 < value.find(whitespace)
 221                         for whitespace in string.whitespace
 222                 ):
 223                         raise ValueError('Invalid input "%s"' % value)
 224                 self._widget.setText(value)
 225
 226         def append(self, value):
 227                 value = value.strip()
 228                 if any(
 229                         0 < value.find(whitespace)
 230                         for whitespace in string.whitespace
 231                 ):
 232                         raise ValueError('Invalid input "%s"' % value)
 233                 self.set_value(self.get_value() + value)
 234
 235         def pop(self):
 236                 value = self.get_value()[0:-1]
 237                 self.set_value(value)
 238
 239         def clear(self):
 240                 self.set_value("")
 241
 242         value = property(get_value, set_value, clear)
 243
 244
 245 class MainWindow(object):
 246
 247         _plugin_search_paths = [
 248                 "/opt/epi/lib/plugins/",
 249                 "/usr/lib/ejpi/plugins/",
 250                 os.path.join(os.path.dirname(__file__), "plugins/"),
 251         ]
 252
 253         _user_history = "%s/history.stack" % constants._data_path_
 254
 255         def __init__(self, parent, app):
 256                 self._app = app
 257
 258                 self._errorDisplay = QErrorDisplay()
 259                 self._historyView = qhistory.QCalcHistory(self._errorDisplay)
 260                 self._userEntry = QValueEntry()
 261                 self._userEntry.entry.returnPressed.connect(self._on_push)
 262                 self._userEntryLayout = QtGui.QHBoxLayout()
 263                 self._userEntryLayout.addWidget(self._userEntry.toplevel)
 264
 265                 self._controlLayout = QtGui.QVBoxLayout()
 266                 self._controlLayout.addWidget(self._errorDisplay.toplevel)
 267                 self._controlLayout.addWidget(self._historyView.toplevel)
 268                 self._controlLayout.addLayout(self._userEntryLayout)
 269
 270                 self._keyboardTabs = QtGui.QTabWidget()
 271
 272                 if maeqt.screen_orientation() == QtCore.Qt.Vertical:
 273                         defaultLayoutOrientation = QtGui.QBoxLayout.TopToBottom
 274                         self._keyboardTabs.setTabPosition(QtGui.QTabWidget.East)
 275                 else:
 276                         defaultLayoutOrientation = QtGui.QBoxLayout.LeftToRight
 277                         self._keyboardTabs.setTabPosition(QtGui.QTabWidget.North)
 278                 self._layout = QtGui.QBoxLayout(defaultLayoutOrientation)
 279                 self._layout.addLayout(self._controlLayout)
 280                 self._layout.addWidget(self._keyboardTabs)
 281
 282                 centralWidget = QtGui.QWidget()
 283                 centralWidget.setLayout(self._layout)
 284
 285                 self._window = QtGui.QMainWindow(parent)
 286                 self._window.setAttribute(QtCore.Qt.WA_DeleteOnClose, True)
 287                 #maeqt.set_autorient(self._window, True)
 288                 maeqt.set_stackable(self._window, True)
 289                 self._window.setWindowTitle("%s" % constants.__pretty_app_name__)
 290                 self._window.setCentralWidget(centralWidget)
 291                 self._window.destroyed.connect(self._on_close_window)
 292
 293                 self._copyItemAction = QtGui.QAction(None)
 294                 self._copyItemAction.setText("Copy")
 295                 self._copyItemAction.setShortcut(QtGui.QKeySequence("CTRL+c"))
 296                 self._copyItemAction.triggered.connect(self._on_copy)
 297
 298                 self._pasteItemAction = QtGui.QAction(None)
 299                 self._pasteItemAction.setText("Paste")
 300                 self._pasteItemAction.setShortcut(QtGui.QKeySequence("CTRL+v"))
 301                 self._pasteItemAction.triggered.connect(self._on_paste)
 302
 303                 self._closeWindowAction = QtGui.QAction(None)
 304                 self._closeWindowAction.setText("Close")
 305                 self._closeWindowAction.setShortcut(QtGui.QKeySequence("CTRL+w"))
 306                 self._closeWindowAction.triggered.connect(self._on_close_window)
 307
 308                 if IS_MAEMO:
 309                         #fileMenu = self._window.menuBar().addMenu("&File")
 310
 311                         #viewMenu = self._window.menuBar().addMenu("&View")
 312
 313                         self._window.addAction(self._copyItemAction)
 314                         self._window.addAction(self._pasteItemAction)
 315                         self._window.addAction(self._closeWindowAction)
 316                         self._window.addAction(self._app.quitAction)
 317                         self._window.addAction(self._app.fullscreenAction)
 318                 else:
 319                         fileMenu = self._window.menuBar().addMenu("&Units")
 320                         fileMenu.addAction(self._closeWindowAction)
 321                         fileMenu.addAction(self._app.quitAction)
 322
 323                         viewMenu = self._window.menuBar().addMenu("&View")
 324                         viewMenu.addAction(self._app.fullscreenAction)
 325
 326                 self._window.addAction(self._app.logAction)
 327
 328                 self._constantPlugins = plugin_utils.ConstantPluginManager()
 329                 self._constantPlugins.add_path(*self._plugin_search_paths)
 330                 for pluginName in ["Builtins", "Trigonometry", "Computer", "Alphabet"]:
 331                         try:
 332                                 pluginId = self._constantPlugins.lookup_plugin(pluginName)
 333                                 self._constantPlugins.enable_plugin(pluginId)
 334                         except:
 335                                 _moduleLogger.info("Failed to load plugin %s" % pluginName)
 336
 337                 self._operatorPlugins = plugin_utils.OperatorPluginManager()
 338                 self._operatorPlugins.add_path(*self._plugin_search_paths)
 339                 for pluginName in ["Builtins", "Trigonometry", "Computer", "Alphabet"]:
 340                         try:
 341                                 pluginId = self._operatorPlugins.lookup_plugin(pluginName)
 342                                 self._operatorPlugins.enable_plugin(pluginId)
 343                         except:
 344                                 _moduleLogger.info("Failed to load plugin %s" % pluginName)
 345
 346                 self._keyboardPlugins = plugin_utils.KeyboardPluginManager()
 347                 self._keyboardPlugins.add_path(*self._plugin_search_paths)
 348                 self._activeKeyboards = []
 349
 350                 self._history = history.RpnCalcHistory(
 351                         self._historyView,
 352                         self._userEntry, self._errorDisplay,
 353                         self._constantPlugins.constants, self._operatorPlugins.operators
 354                 )
 355                 self._load_history()
 356
 357                 # Basic keyboard stuff
 358                 self._handler = qtpieboard.KeyboardHandler(self._on_entry_direct)
 359                 self._handler.register_command_handler("push", self._on_push)
 360                 self._handler.register_command_handler("unpush", self._on_unpush)
 361                 self._handler.register_command_handler("backspace", self._on_entry_backspace)
 362                 self._handler.register_command_handler("clear", self._on_entry_clear)
 363
 364                 # Main keyboard
 365                 entryKeyboardId = self._keyboardPlugins.lookup_plugin("Entry")
 366                 self._keyboardPlugins.enable_plugin(entryKeyboardId)
 367                 entryPlugin = self._keyboardPlugins.keyboards["Entry"].construct_keyboard()
 368                 entryKeyboard = entryPlugin.setup(self._history, self._handler)
 369                 self._userEntryLayout.addWidget(entryKeyboard.toplevel)
 370
 371                 # Plugins
 372                 self.enable_plugin(self._keyboardPlugins.lookup_plugin("Builtins"))
 373                 self.enable_plugin(self._keyboardPlugins.lookup_plugin("Trigonometry"))
 374                 self.enable_plugin(self._keyboardPlugins.lookup_plugin("Computer"))
 375                 self.enable_plugin(self._keyboardPlugins.lookup_plugin("Alphabet"))
 376
 377                 self.set_fullscreen(self._app.fullscreenAction.isChecked())
 378
 379                 self._window.show()
 380                 self._set_plugin_kb(0)
 381
 382         @property
 383         def window(self):
 384                 return self._window
 385
 386         def walk_children(self):
 387                 return ()
 388
 389         def show(self):
 390                 self._window.show()
 391                 for child in self.walk_children():
 392                         child.show()
 393
 394         def hide(self):
 395                 for child in self.walk_children():
 396                         child.hide()
 397                 self._window.hide()
 398
 399         def close(self):
 400                 for child in self.walk_children():
 401                         child.window.destroyed.disconnect(self._on_child_close)
 402                         child.close()
 403                 self._window.close()
 404
 405         def set_fullscreen(self, isFullscreen):
 406                 if isFullscreen:
 407                         self._window.showFullScreen()
 408                 else:
 409                         self._window.showNormal()
 410                 for child in self.walk_children():
 411                         child.set_fullscreen(isFullscreen)
 412
 413         def enable_plugin(self, pluginId):
 414                 self._keyboardPlugins.enable_plugin(pluginId)
 415                 pluginData = self._keyboardPlugins.plugin_info(pluginId)
 416                 pluginName = pluginData[0]
 417                 plugin = self._keyboardPlugins.keyboards[pluginName].construct_keyboard()
 418                 relIcon = self._keyboardPlugins.keyboards[pluginName].icon
 419                 for iconPath in self._keyboardPlugins.keyboards[pluginName].iconPaths:
 420                         absIconPath = os.path.join(iconPath, relIcon)
 421                         if os.path.exists(absIconPath):
 422                                 icon = QtGui.QIcon(absIconPath)
 423                                 break
 424                 else:
 425                         icon = None
 426                 pluginKeyboard = plugin.setup(self._history, self._handler)
 427
 428                 self._activeKeyboards.append({
 429                         "pluginName": pluginName,
 430                         "plugin": plugin,
 431                         "pluginKeyboard": pluginKeyboard,
 432                 })
 433                 if icon is None:
 434                         self._keyboardTabs.addTab(pluginKeyboard.toplevel, pluginName)
 435                 else:
 436                         self._keyboardTabs.addTab(pluginKeyboard.toplevel, icon, "")
 437
 438         def _set_plugin_kb(self, pluginIndex):
 439                 plugin = self._activeKeyboards[pluginIndex]
 440
 441                 # @todo Switch the keyboard tab
 442                 pluginKeyboard = plugin["pluginKeyboard"]
 443
 444         def _load_history(self):
 445                 serialized = []
 446                 try:
 447                         with open(self._user_history, "rU") as f:
 448                                 serialized = (
 449                                         (part.strip() for part in line.split(" "))
 450                                         for line in f.readlines()
 451                                 )
 452                 except IOError, e:
 453                         if e.errno != 2:
 454                                 raise
 455                 self._history.deserialize_stack(serialized)
 456
 457         def _save_history(self):
 458                 serialized = self._history.serialize_stack()
 459                 with open(self._user_history, "w") as f:
 460                         for lineData in serialized:
 461                                 line = " ".join(data for data in lineData)
 462                                 f.write("%s\n" % line)
 463
 464         @misc_utils.log_exception(_moduleLogger)
 465         def _on_copy(self, *args):
 466                 eqNode = self._historyView.peek()
 467                 resultNode = eqNode.simplify()
 468                 self._app._clipboard.setText(str(resultNode))
 469
 470         @misc_utils.log_exception(_moduleLogger)
 471         def _on_paste(self, *args):
 472                 result = str(self._app._clipboard.text())
 473                 self._userEntry.append(result)
 474
 475         @misc_utils.log_exception(_moduleLogger)
 476         def _on_entry_direct(self, keys, modifiers):
 477                 if "shift" in modifiers:
 478                         keys = keys.upper()
 479                 self._userEntry.append(keys)
 480
 481         @misc_utils.log_exception(_moduleLogger)
 482         def _on_push(self, *args):
 483                 self._history.push_entry()
 484
 485         @misc_utils.log_exception(_moduleLogger)
 486         def _on_unpush(self, *args):
 487                 self._historyView.unpush()
 488
 489         @misc_utils.log_exception(_moduleLogger)
 490         def _on_entry_backspace(self, *args):
 491                 self._userEntry.pop()
 492
 493         @misc_utils.log_exception(_moduleLogger)
 494         def _on_entry_clear(self, *args):
 495                 self._userEntry.clear()
 496
 497         @misc_utils.log_exception(_moduleLogger)
 498         def _on_clear_all(self, *args):
 499                 self._history.clear()
 500
 501         @misc_utils.log_exception(_moduleLogger)
 502         def _on_close_window(self, checked = True):
 503                 self._save_history()
 504
 505
 506 def run():
 507         app = QtGui.QApplication([])
 508         handle = Calculator(app)
 509         qtpie.init_pies()
 510         return app.exec_()
 511
 512
 513 if __name__ == "__main__":
 514         logging.basicConfig(level = logging.DEBUG)
 515         try:
 516                 os.makedirs(constants._data_path_)
 517         except OSError, e:
 518                 if e.errno != 17:
 519                         raise
 520
 521         val = run()
 522         sys.exit(val)