4 Some useful things on Maemo
5 @li http://maemo.org/api_refs/4.1/libosso-2.16-1/group__Statesave.html
6 @li http://maemo.org/api_refs/4.1/libosso-2.16-1/group__Autosave.html
10 from __future__ import with_statement
27 from libraries import gtkpie
28 from libraries import gtkpieboard
29 import util.misc as misc_utils
35 _moduleLogger = logging.getLogger(__name__)
37 PLUGIN_SEARCH_PATHS = [
38 os.path.join(os.path.dirname(__file__), "plugins/"),
41 PROFILE_STARTUP = False
44 class ValueEntry(object):
46 def __init__(self, widget):
47 self.__widget = widget
48 self.__actualEntryDisplay = ""
51 value = self.__actualEntryDisplay.strip()
53 0 < value.find(whitespace)
54 for whitespace in string.whitespace
57 raise ValueError('Invalid input "%s"' % value)
60 def set_value(self, value):
63 0 < value.find(whitespace)
64 for whitespace in string.whitespace
66 raise ValueError('Invalid input "%s"' % value)
67 self.__actualEntryDisplay = value
68 self.__widget.set_text(value)
70 def append(self, value):
73 0 < value.find(whitespace)
74 for whitespace in string.whitespace
76 raise ValueError('Invalid input "%s"' % value)
77 self.set_value(self.get_value() + value)
80 value = self.get_value()[0:-1]
86 value = property(get_value, set_value, clear)
89 class Calculator(object):
92 '/usr/lib/ejpi/ejpi.glade',
93 os.path.join(os.path.dirname(__file__), "ejpi.glade"),
94 os.path.join(os.path.dirname(__file__), "../lib/ejpi.glade"),
97 _plugin_search_paths = [
98 "/usr/lib/ejpi/plugins/",
99 os.path.join(os.path.dirname(__file__), "plugins/"),
102 _user_data = constants._data_path_
103 _user_settings = "%s/settings.ini" % _user_data
104 _user_history = "%s/history.stack" % _user_data
106 MIN_BUTTON_SIZE = min(800, 480) // 6 - 20
109 self.__constantPlugins = plugin_utils.ConstantPluginManager()
110 self.__constantPlugins.add_path(*self._plugin_search_paths)
111 for pluginName in ["Builtin", "Trigonometry", "Computer", "Alphabet"]:
113 pluginId = self.__constantPlugins.lookup_plugin(pluginName)
114 self.__constantPlugins.enable_plugin(pluginId)
116 warnings.warn("Failed to load plugin %s" % pluginName)
118 self.__operatorPlugins = plugin_utils.OperatorPluginManager()
119 self.__operatorPlugins.add_path(*self._plugin_search_paths)
120 for pluginName in ["Builtin", "Trigonometry", "Computer", "Alphabet"]:
122 pluginId = self.__operatorPlugins.lookup_plugin(pluginName)
123 self.__operatorPlugins.enable_plugin(pluginId)
125 warnings.warn("Failed to load plugin %s" % pluginName)
127 self.__keyboardPlugins = plugin_utils.KeyboardPluginManager()
128 self.__keyboardPlugins.add_path(*self._plugin_search_paths)
129 self.__activeKeyboards = []
131 for path in self._glade_files:
132 if os.path.isfile(path):
133 self._widgetTree = gtk.glade.XML(path)
136 self.display_error_message("Cannot find ejpi.glade")
140 os.makedirs(self._user_data)
145 self._clipboard = gtk.clipboard_get()
146 self._window = self._widgetTree.get_widget("mainWindow")
149 self._isFullScreen = False
150 self._app = hildonize.get_app_class()()
151 self._window = hildonize.hildonize_window(self._app, self._window)
153 menu = hildonize.hildonize_menu(
155 self._widgetTree.get_widget("mainMenubar"),
158 for scrollingWidgetName in (
161 scrollingWidget = self._widgetTree.get_widget(scrollingWidgetName)
162 assert scrollingWidget is not None, scrollingWidgetName
163 hildonize.hildonize_scrollwindow_with_viewport(scrollingWidget)
165 self.__errorDisplay = gtk_toolbox.ErrorDisplay(self._widgetTree)
166 self.__userEntry = ValueEntry(self._widgetTree.get_widget("entryView"))
167 self.__stackView = self._widgetTree.get_widget("historyView")
168 self.__pluginButton = self._widgetTree.get_widget("keyboardSelectionButton")
170 self.__historyStore = gtkhistory.GtkCalcHistory(self.__stackView)
171 self.__history = history.RpnCalcHistory(
173 self.__userEntry, self.__errorDisplay,
174 self.__constantPlugins.constants, self.__operatorPlugins.operators
176 self.__load_history()
178 # Basic keyboard stuff
179 self.__sliceStyle = gtkpie.generate_pie_style(gtk.Button())
180 self.__handler = gtkpieboard.KeyboardHandler(self._on_entry_direct)
181 self.__handler.register_command_handler("push", self._on_push)
182 self.__handler.register_command_handler("unpush", self._on_unpush)
183 self.__handler.register_command_handler("backspace", self._on_entry_backspace)
184 self.__handler.register_command_handler("clear", self._on_entry_clear)
187 builtinKeyboardId = self.__keyboardPlugins.lookup_plugin("Builtin")
188 self.__keyboardPlugins.enable_plugin(builtinKeyboardId)
189 self.__builtinPlugin = self.__keyboardPlugins.keyboards["Builtin"].construct_keyboard()
190 self.__builtinKeyboard = self.__builtinPlugin.setup(self.__history, self.__sliceStyle, self.__handler)
191 self._widgetTree.get_widget("mainKeyboard").pack_start(self.__builtinKeyboard)
192 for child in self.__builtinKeyboard.get_children():
193 child.set_size_request(self.MIN_BUTTON_SIZE, self.MIN_BUTTON_SIZE)
196 self.enable_plugin(self.__keyboardPlugins.lookup_plugin("Trigonometry"))
197 self.enable_plugin(self.__keyboardPlugins.lookup_plugin("Computer"))
198 self.enable_plugin(self.__keyboardPlugins.lookup_plugin("Alphabet"))
199 self._set_plugin_kb(0)
202 if not hildonize.IS_FREMANTLE_SUPPORTED:
203 # Menus aren't used in the Fremantle version
205 "on_calculator_quit": self._on_close,
206 "on_paste": self._on_paste,
207 "on_clear_history": self._on_clear_all,
208 "on_about": self._on_about_activate,
210 self._widgetTree.signal_autoconnect(callbackMapping)
211 self._widgetTree.get_widget("copyMenuItem").connect("activate", self._on_copy)
212 self._widgetTree.get_widget("copyEquationMenuItem").connect("activate", self._on_copy_equation)
213 self._window.connect("key-press-event", self._on_key_press)
214 self._window.connect("window-state-event", self._on_window_state_change)
215 self._widgetTree.get_widget("entryView").connect("activate", self._on_push)
216 self.__pluginButton.connect("clicked", self._on_kb_plugin_selection_button)
218 hildonize.set_application_name("%s" % constants.__pretty_app_name__)
219 self._window.connect("destroy", self._on_close)
220 self._window.show_all()
222 if not hildonize.IS_HILDON_SUPPORTED:
223 _moduleLogger.warning("No hildonization support")
230 self._deviceState = None
232 self._osso = osso.Context(constants.__app_name__, constants.__version__, False)
233 self._deviceState = osso.DeviceState(self._osso)
234 self._deviceState.set_device_state_callback(self._on_device_state_change, 0)
236 _moduleLogger.warning("No OSSO support")
238 def display_error_message(self, msg):
239 error_dialog = gtk.MessageDialog(None, 0, gtk.MESSAGE_ERROR, gtk.BUTTONS_CLOSE, msg)
241 def close(dialog, response, editor):
242 editor.about_dialog = None
244 error_dialog.connect("response", close, self)
247 def enable_plugin(self, pluginId):
248 self.__keyboardPlugins.enable_plugin(pluginId)
249 pluginData = self.__keyboardPlugins.plugin_info(pluginId)
250 pluginName = pluginData[0]
251 plugin = self.__keyboardPlugins.keyboards[pluginName].construct_keyboard()
252 pluginKeyboard = plugin.setup(self.__history, self.__sliceStyle, self.__handler)
253 for child in pluginKeyboard.get_children():
254 child.set_size_request(self.MIN_BUTTON_SIZE, self.MIN_BUTTON_SIZE)
256 self.__activeKeyboards.append({
257 "pluginName": pluginName,
259 "pluginKeyboard": pluginKeyboard,
262 @misc_utils.log_exception(_moduleLogger)
263 def _on_kb_plugin_selection_button(self, *args):
264 pluginNames = [plugin["pluginName"] for plugin in self.__activeKeyboards]
265 oldIndex = pluginNames.index(self.__pluginButton.get_label())
266 newIndex = hildonize.touch_selector(self._window, "Keyboards", pluginNames, oldIndex)
267 self._set_plugin_kb(newIndex)
269 def _set_plugin_kb(self, pluginIndex):
270 plugin = self.__activeKeyboards[pluginIndex]
271 self.__pluginButton.set_label(plugin["pluginName"])
273 pluginParent = self._widgetTree.get_widget("pluginKeyboard")
274 oldPluginChildren = pluginParent.get_children()
275 if oldPluginChildren:
276 assert len(oldPluginChildren) == 1, "%r" % (oldPluginChildren, )
277 pluginParent.remove(oldPluginChildren[0])
278 oldPluginChildren[0].hide()
279 pluginKeyboard = plugin["pluginKeyboard"]
280 pluginParent.pack_start(pluginKeyboard)
282 pluginKeyboard.show_all()
284 def __load_history(self):
287 with open(self._user_history, "rU") as f:
289 (part.strip() for part in line.split(" "))
290 for line in f.readlines()
295 self.__history.deserialize_stack(serialized)
297 def __save_history(self):
298 serialized = self.__history.serialize_stack()
299 with open(self._user_history, "w") as f:
300 for lineData in serialized:
301 line = " ".join(data for data in lineData)
302 f.write("%s\n" % line)
304 @misc_utils.log_exception(_moduleLogger)
305 def _on_device_state_change(self, shutdown, save_unsaved_data, memory_low, system_inactivity, message, userData):
307 For system_inactivity, we have no background tasks to pause
309 @note Hildon specific
314 if save_unsaved_data or shutdown:
315 self.__save_history()
317 @misc_utils.log_exception(_moduleLogger)
318 def _on_window_state_change(self, widget, event, *args):
319 if event.new_window_state & gtk.gdk.WINDOW_STATE_FULLSCREEN:
320 self._isFullScreen = True
322 self._isFullScreen = False
324 @misc_utils.log_exception(_moduleLogger)
325 def _on_close(self, *args, **kwds):
327 self.__save_history()
330 self._deviceState.close()
331 except AttributeError:
332 pass # Either None or close was removed (in Fremantle)
335 except AttributeError:
336 pass # Either None or close was removed (in Fremantle)
340 @misc_utils.log_exception(_moduleLogger)
341 def _on_copy(self, *args):
342 equationNode = self.__history.history.peek()
343 result = str(equationNode.evaluate())
344 self._clipboard.set_text(result)
346 @misc_utils.log_exception(_moduleLogger)
347 def _on_copy_equation(self, *args):
348 equationNode = self.__history.history.peek()
349 equation = str(equationNode)
350 self._clipboard.set_text(equation)
352 @misc_utils.log_exception(_moduleLogger)
353 def _on_paste(self, *args):
354 contents = self._clipboard.wait_for_text()
355 self.__userEntry.append(contents)
357 @misc_utils.log_exception(_moduleLogger)
358 def _on_key_press(self, widget, event, *args):
359 RETURN_TYPES = (gtk.keysyms.Return, gtk.keysyms.ISO_Enter, gtk.keysyms.KP_Enter)
361 event.keyval == gtk.keysyms.F6 or
362 event.keyval in RETURN_TYPES and event.get_state() & gtk.gdk.CONTROL_MASK
364 if self._isFullScreen:
365 self._window.unfullscreen()
367 self._window.fullscreen()
368 elif event.keyval == ord("c") and event.get_state() & gtk.gdk.CONTROL_MASK:
369 equationNode = self.__history.history.peek()
370 result = str(equationNode.evaluate())
371 self._clipboard.set_text(result)
372 elif event.keyval == ord("l") and event.get_state() & gtk.gdk.CONTROL_MASK:
373 with open(constants._user_logpath_, "r") as f:
374 logLines = f.xreadlines()
375 log = "".join(logLines)
376 self._clipboard.set_text(str(log))
377 elif event.keyval == gtk.keysyms.BackSpace and event.get_state() & gtk.gdk.CONTROL_MASK:
378 self.__historyStore.unpush()
379 elif event.keyval == gtk.keysyms.BackSpace:
380 self.__userEntry.pop()
381 elif event.keyval in RETURN_TYPES:
382 self.__history.push_entry()
384 @misc_utils.log_exception(_moduleLogger)
385 def _on_push(self, *args):
386 self.__history.push_entry()
388 @misc_utils.log_exception(_moduleLogger)
389 def _on_unpush(self, *args):
390 self.__historyStore.unpush()
392 @misc_utils.log_exception(_moduleLogger)
393 def _on_entry_direct(self, keys, modifiers):
394 if "shift" in modifiers:
396 self.__userEntry.append(keys)
398 @misc_utils.log_exception(_moduleLogger)
399 def _on_entry_backspace(self, *args):
400 self.__userEntry.pop()
402 @misc_utils.log_exception(_moduleLogger)
403 def _on_entry_clear(self, *args):
404 self.__userEntry.clear()
406 @misc_utils.log_exception(_moduleLogger)
407 def _on_clear_all(self, *args):
408 self.__history.clear()
410 @misc_utils.log_exception(_moduleLogger)
411 def _on_about_activate(self, *args):
412 dlg = gtk.AboutDialog()
413 dlg.set_name(constants.__pretty_app_name__)
414 dlg.set_version(constants.__version__)
415 dlg.set_copyright("Copyright 2008 - LGPL")
417 ejpi A Touch Screen Optimized RPN Calculator for Maemo and Linux.
419 RPN: Stack based math, its fun
420 Buttons: Try both pressing and hold/drag
421 History: Try dragging things around, deleting them, etc
423 dlg.set_website("http://ejpi.garage.maemo.org")
424 dlg.set_authors(["Ed Page <eopage@byu.net>"])
432 failureCount, testCount = doctest.testmod()
434 print "Tests Successful"
441 gtk.gdk.threads_init()
443 gtkpie.IMAGES.add_path(os.path.join(os.path.dirname(__file__), "libraries/images"), )
444 if hildonize.IS_HILDON_SUPPORTED:
445 gtk.set_application_name(constants.__pretty_app_name__)
446 handle = Calculator()
447 if not PROFILE_STARTUP:
451 class DummyOptions(object):
457 if __name__ == "__main__":
458 logging.basicConfig(level=logging.DEBUG)
459 if len(sys.argv) > 1:
465 if optparse is not None:
466 parser = optparse.OptionParser()
467 parser.add_option("-t", "--test", action="store_true", dest="test", help="Run tests")
468 (commandOptions, commandArgs) = parser.parse_args()
470 commandOptions = DummyOptions()
473 if commandOptions.test: