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