4 from __future__ import with_statement
12 from PyQt4 import QtGui
13 from PyQt4 import QtCore
17 from util import misc as misc_utils
19 from libraries import qtpie
20 from libraries import qtpieboard
26 _moduleLogger = logging.getLogger(__name__)
32 PLUGIN_SEARCH_PATHS = [
33 os.path.join(os.path.dirname(__file__), "plugins/"),
37 class Calculator(object):
39 def __init__(self, app):
42 self._hiddenCategories = set()
43 self._hiddenUnits = {}
44 self._clipboard = QtGui.QApplication.clipboard()
45 self._mainWindow = None
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)
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)
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)
63 self._app.lastWindowClosed.connect(self._on_app_quit)
66 self._mainWindow = MainWindow(None, self)
67 self._mainWindow.window.destroyed.connect(self._on_child_close)
69 def load_settings(self):
71 with open(constants._user_settings_, "r") as settingsFile:
72 settings = simplejson.load(settingsFile)
74 _moduleLogger.info("No settings")
77 _moduleLogger.info("Settings were corrupt")
80 self._fullscreenAction.setChecked(settings.get("isFullScreen", False))
82 def save_settings(self):
84 "isFullScreen": self._fullscreenAction.isChecked(),
86 with open(constants._user_settings_, "w") as settingsFile:
87 simplejson.dump(settings, settingsFile)
90 def fullscreenAction(self):
91 return self._fullscreenAction
95 return self._logAction
99 return self._quitAction
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
107 @misc_utils.log_exception(_moduleLogger)
108 def _on_app_quit(self, checked = False):
111 @misc_utils.log_exception(_moduleLogger)
112 def _on_child_close(self, obj = None):
113 self._mainWindow = None
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)
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)
127 @misc_utils.log_exception(_moduleLogger)
128 def _on_quit(self, checked = False):
129 self._close_windows()
132 class QErrorDisplay(object):
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)
142 self._message = QtGui.QLabel()
143 self._message.setText("Boo")
145 icon = QtGui.QIcon.fromTheme("gtk-close")
146 self._closeLabel = QtGui.QPushButton(icon, "")
147 self._closeLabel.clicked.connect(self._on_close)
149 self._controlLayout = QtGui.QHBoxLayout()
150 self._controlLayout.addWidget(self._severityLabel)
151 self._controlLayout.addWidget(self._message)
152 self._controlLayout.addWidget(self._closeLabel)
154 self._topLevelLayout = QtGui.QHBoxLayout()
155 self._topLevelLayout.addLayout(self._controlLayout)
160 return self._topLevelLayout
162 def push_message(self, message):
163 self._messages.append(message)
164 if 1 == len(self._messages):
165 self._show_message(message)
167 def push_exception(self):
168 userMessage = str(sys.exc_info()[1])
169 _moduleLogger.exception(userMessage)
170 self.push_message(userMessage)
172 def pop_message(self):
173 del self._messages[0]
174 if 0 == len(self._messages):
177 self._message.setText(self._messages[0])
179 def _on_close(self, *args):
182 def _show_message(self, message):
183 self._message.setText(message)
184 self._severityLabel.show()
186 self._closeLabel.show()
188 def _hide_message(self):
189 self._message.setText("")
190 self._severityLabel.hide()
192 self._closeLabel.hide()
195 class QValueEntry(object):
198 self._widget = QtGui.QLineEdit("")
199 self._widget.setInputMethodHints(QtCore.Qt.ImhPreferNumbers)
200 self._actualEntryDisplay = ""
207 value = self._actualEntryDisplay.strip()
209 0 < value.find(whitespace)
210 for whitespace in string.whitespace
213 raise ValueError('Invalid input "%s"' % value)
216 def set_value(self, value):
217 value = value.strip()
219 0 < value.find(whitespace)
220 for whitespace in string.whitespace
222 raise ValueError('Invalid input "%s"' % value)
223 self._actualEntryDisplay = value
224 self._widget.setText(value)
226 def append(self, value):
227 value = value.strip()
229 0 < value.find(whitespace)
230 for whitespace in string.whitespace
232 raise ValueError('Invalid input "%s"' % value)
233 self.set_value(self.get_value() + value)
236 value = self.get_value()[0:-1]
237 self.set_value(value)
242 value = property(get_value, set_value, clear)
245 class MainWindow(object):
247 _plugin_search_paths = [
248 "/opt/epi/lib/plugins/",
249 "/usr/lib/ejpi/plugins/",
250 os.path.join(os.path.dirname(__file__), "plugins/"),
253 _user_history = "%s/history.stack" % constants._data_path_
255 def __init__(self, parent, app):
258 self._errorDisplay = QErrorDisplay()
259 self._historyView = qhistory.QCalcHistory(self._errorDisplay)
260 self._userEntry = QValueEntry()
262 self._controlLayout = QtGui.QVBoxLayout()
263 self._controlLayout.addLayout(self._errorDisplay.toplevel)
264 self._controlLayout.addWidget(self._historyView.toplevel)
265 self._controlLayout.addWidget(self._userEntry.toplevel)
267 self._pluginKeyboardSpot = QtGui.QVBoxLayout()
268 self._inputLayout = QtGui.QVBoxLayout()
269 self._inputLayout.addLayout(self._pluginKeyboardSpot)
271 self._layout = QtGui.QHBoxLayout()
272 self._layout.addLayout(self._controlLayout)
273 self._layout.addLayout(self._inputLayout)
275 centralWidget = QtGui.QWidget()
276 centralWidget.setLayout(self._layout)
278 self._window = QtGui.QMainWindow(parent)
279 self._window.setAttribute(QtCore.Qt.WA_DeleteOnClose, True)
280 maeqt.set_autorient(self._window, True)
281 maeqt.set_stackable(self._window, True)
282 self._window.setWindowTitle("%s" % constants.__pretty_app_name__)
283 self._window.setCentralWidget(centralWidget)
284 self._window.destroyed.connect(self._on_close_window)
286 self._closeWindowAction = QtGui.QAction(None)
287 self._closeWindowAction.setText("Close")
288 self._closeWindowAction.setShortcut(QtGui.QKeySequence("CTRL+w"))
289 self._closeWindowAction.triggered.connect(self._on_close_window)
292 #fileMenu = self._window.menuBar().addMenu("&File")
294 #viewMenu = self._window.menuBar().addMenu("&View")
296 self._window.addAction(self._closeWindowAction)
297 self._window.addAction(self._app.quitAction)
298 self._window.addAction(self._app.fullscreenAction)
300 fileMenu = self._window.menuBar().addMenu("&Units")
301 fileMenu.addAction(self._closeWindowAction)
302 fileMenu.addAction(self._app.quitAction)
304 viewMenu = self._window.menuBar().addMenu("&View")
305 viewMenu.addAction(self._app.fullscreenAction)
307 self._window.addAction(self._app.logAction)
309 self._constantPlugins = plugin_utils.ConstantPluginManager()
310 self._constantPlugins.add_path(*self._plugin_search_paths)
311 for pluginName in ["Builtin", "Trigonometry", "Computer", "Alphabet"]:
313 pluginId = self._constantPlugins.lookup_plugin(pluginName)
314 self._constantPlugins.enable_plugin(pluginId)
316 _moduleLogger.info("Failed to load plugin %s" % pluginName)
318 self._operatorPlugins = plugin_utils.OperatorPluginManager()
319 self._operatorPlugins.add_path(*self._plugin_search_paths)
320 for pluginName in ["Builtin", "Trigonometry", "Computer", "Alphabet"]:
322 pluginId = self._operatorPlugins.lookup_plugin(pluginName)
323 self._operatorPlugins.enable_plugin(pluginId)
325 _moduleLogger.info("Failed to load plugin %s" % pluginName)
327 self._keyboardPlugins = plugin_utils.KeyboardPluginManager()
328 self._keyboardPlugins.add_path(*self._plugin_search_paths)
329 self._activeKeyboards = []
331 self._history = history.RpnCalcHistory(
333 self._userEntry, self._errorDisplay,
334 self._constantPlugins.constants, self._operatorPlugins.operators
338 # Basic keyboard stuff
339 self._handler = qtpieboard.KeyboardHandler(self._on_entry_direct)
340 self._handler.register_command_handler("push", self._on_push)
341 self._handler.register_command_handler("unpush", self._on_unpush)
342 self._handler.register_command_handler("backspace", self._on_entry_backspace)
343 self._handler.register_command_handler("clear", self._on_entry_clear)
346 builtinKeyboardId = self._keyboardPlugins.lookup_plugin("Builtin")
347 self._keyboardPlugins.enable_plugin(builtinKeyboardId)
348 self._builtinPlugin = self._keyboardPlugins.keyboards["Builtin"].construct_keyboard()
349 self._builtinKeyboard = self._builtinPlugin.setup(self._history, self._handler)
350 self._inputLayout.addLayout(self._builtinKeyboard.toplevel)
353 self.enable_plugin(self._keyboardPlugins.lookup_plugin("Trigonometry"))
354 self.enable_plugin(self._keyboardPlugins.lookup_plugin("Computer"))
355 self.enable_plugin(self._keyboardPlugins.lookup_plugin("Alphabet"))
356 self._set_plugin_kb(0)
358 self.set_fullscreen(self._app.fullscreenAction.isChecked())
365 def walk_children(self):
370 for child in self.walk_children():
374 for child in self.walk_children():
379 for child in self.walk_children():
380 child.window.destroyed.disconnect(self._on_child_close)
384 def set_fullscreen(self, isFullscreen):
386 self._window.showFullScreen()
388 self._window.showNormal()
389 for child in self.walk_children():
390 child.set_fullscreen(isFullscreen)
392 def enable_plugin(self, pluginId):
393 self._keyboardPlugins.enable_plugin(pluginId)
394 pluginData = self._keyboardPlugins.plugin_info(pluginId)
395 pluginName = pluginData[0]
396 plugin = self._keyboardPlugins.keyboards[pluginName].construct_keyboard()
397 pluginKeyboard = plugin.setup(self._history, self._handler)
399 self._activeKeyboards.append({
400 "pluginName": pluginName,
402 "pluginKeyboard": pluginKeyboard,
405 def _set_plugin_kb(self, pluginIndex):
406 plugin = self._activeKeyboards[pluginIndex]
407 # @todo self._pluginButton.set_label(plugin["pluginName"])
409 for i in xrange(self._pluginKeyboardSpot.count()):
410 self._pluginKeyboardSpot.removeItem(self._pluginKeyboardSpot.itemAt(i))
411 pluginKeyboard = plugin["pluginKeyboard"]
412 self._pluginKeyboardSpot.addItem(pluginKeyboard.toplevel)
414 def _load_history(self):
417 with open(self._user_history, "rU") as f:
419 (part.strip() for part in line.split(" "))
420 for line in f.readlines()
425 self._history.deserialize_stack(serialized)
427 def _save_history(self):
428 serialized = self._history.serialize_stack()
429 with open(self._user_history, "w") as f:
430 for lineData in serialized:
431 line = " ".join(data for data in lineData)
432 f.write("%s\n" % line)
434 @misc_utils.log_exception(_moduleLogger)
435 def _on_entry_direct(self, keys, modifiers):
436 if "shift" in modifiers:
438 self._userEntry.append(keys)
440 @misc_utils.log_exception(_moduleLogger)
441 def _on_push(self, *args):
442 self._history.push_entry()
444 @misc_utils.log_exception(_moduleLogger)
445 def _on_unpush(self, *args):
446 self._historyStore.unpush()
448 @misc_utils.log_exception(_moduleLogger)
449 def _on_entry_backspace(self, *args):
450 self._userEntry.pop()
452 @misc_utils.log_exception(_moduleLogger)
453 def _on_entry_clear(self, *args):
454 self._userEntry.clear()
456 @misc_utils.log_exception(_moduleLogger)
457 def _on_clear_all(self, *args):
458 self._history.clear()
460 @misc_utils.log_exception(_moduleLogger)
461 def _on_close_window(self, checked = True):
466 app = QtGui.QApplication([])
467 handle = Calculator(app)
472 if __name__ == "__main__":
473 logging.basicConfig(level = logging.DEBUG)
475 os.makedirs(constants._data_path_)