def keypress(self, size, key):
"""Handle all keyboard shortcuts for the market menu"""
if key in self.keypress_map:
# Open up the order dialog to buy sell this item
commodity = self.keypress_map[key]
self.pubpen.publish(self.order_info_event, commodity,
self.auxiliary_cols[self.price_col_idx].data_map[commodity],
self.location)
urwid.emit_signal(self, self.signals[1])
elif key in ('left', 'right'):
# Ignore keys that might move focus to a widget to the side
return
elif key in ('up', 'down', 'page up', 'page down'):
# First let the children handle the change in focus...
super().keypress(size, key) #pylint: disable=not-callable
# Then highlight the same entry in other columns
self._highlight_focused_line()
else:
super().keypress(size, key) #pylint: disable=not-callable
return key
python类emit_signal()的实例源码
def keypress(self, size, key):
if key=='enter':
line=self.edit_text.strip()
if line:
urwid.emit_signal(self,'line_entered', line)
self.history.append(line)
self._history_index=len(self.history)
self.edit_text=u''
if key=='up':
self._history_index-=1
if self._history_index< 0:
self._history_index= 0
else:
self.edit_text=self.history[self._history_index]
if key=='down':
self._history_index+=1
if self._history_index>=len(self.history):
self._history_index=len(self.history)
self.edit_text=u''
else:
self.edit_text=self.history[self._history_index]
else:
urwid.Edit.keypress(self, size, key)
def keypress(self, size, key):
if key=='enter':
line=self.edit_text.strip()
if line:
urwid.emit_signal(self,'line_entered', line)
self.history.append(line)
self._history_index=len(self.history)
self.edit_text=u''
if key=='up':
self._history_index-=1
if self._history_index< 0:
self._history_index= 0
else:
self.edit_text=self.history[self._history_index]
if key=='down':
self._history_index+=1
if self._history_index>=len(self.history):
self._history_index=len(self.history)
self.edit_text=u''
else:
self.edit_text=self.history[self._history_index]
else:
urwid.Edit.keypress(self, size, key)
def keypress(self, size, key):
if key == 'enter':
line = self.edit_text.strip()
if line:
urwid.emit_signal(self, 'line_entered', line)
self.history.append(line)
self._history_index = len(self.history)
self.edit_text = u''
if key == 'up':
self._history_index -= 1
if self._history_index < 0:
self._history_index = 0
else:
self.edit_text = self.history[self._history_index]
if key == 'down':
self._history_index += 1
if self._history_index >= len(self.history):
self._history_index = len(self.history)
self.edit_text = u''
else:
self.edit_text = self.history[self._history_index]
else:
urwid.Edit.keypress(self, size, key)
def keypress(self, size, key):
if key == 'enter':
urwid.emit_signal(self, 'done', self.get_edit_text())
return
elif key == 'esc':
urwid.emit_signal(self, 'done', None)
return
elif key == 'tab':
urwid.emit_signal(self, 'toggle_case_modifier')
urwid.emit_signal(self, 'change', self, self.get_edit_text())
return
elif key == 'ctrl r':
urwid.emit_signal(self, 'toggle_regexp_modifier')
urwid.emit_signal(self, 'change', self, self.get_edit_text())
return
elif key == 'down':
urwid.emit_signal(self, 'done', None)
return
urwid.Edit.keypress(self, size, key)
def keypress(self, size, key):
if key in ('up', 'down', 'page up', 'page down', 'enter', ' ', 'j', 'k'):
return super(SongListBox, self).keypress(size, key)
if key in ('q', 'Q', 'esc'):
# ??????
urwid.emit_signal(self, 'exit')
if key in ('s', 'S'):
# ????
urwid.emit_signal(self, 'stop')
if key in ('left', 'right'):
# ?????
urwid.emit_signal(self, 'next_song')
if key in ('m', 'M'):
# ????
urwid.emit_signal(self, 'change_mode')
def keypress(self, size, key):
if key == 'enter':
line = self.edit_text.strip()
if line:
urwid.emit_signal(self, 'line_entered', line)
self.history.append(line)
self._history_index = len(self.history)
self.edit_text = u''
if key == 'up':
self._history_index -= 1
if self._history_index < 0:
self._history_index = 0
else:
self.edit_text = self.history[self._history_index]
if key == 'down':
self._history_index += 1
if self._history_index >= len(self.history):
self._history_index = len(self.history)
self.edit_text = u''
else:
self.edit_text = self.history[self._history_index]
else:
urwid.Edit.keypress(self, size, key)
def handle_commodity_select(self, commodity, *args):
"""
Create a buy/sell dialog when the commodity is selected
:arg commodity: The name of the commodity selected
"""
# If the user selected the line via the mouse, then we need to sync
# the highlighted line
self.commodity.set_focus(self.commodity_col.data_map[commodity])
self._highlight_focused_line()
self.pubpen.publish(self.order_info_event, commodity,
self.auxiliary_cols[self.price_col_idx].data_map[commodity],
self.location)
urwid.emit_signal(self, self.signals[1])
def keypress(self, *args):
"""Any interaction with the widget moves on to the next screen"""
urwid.emit_signal(self, 'close_title_card')
def handle_transaction_finalized(self, *args, **kwargs):
"""
Clear the transation dialog state when we are told the transaction is finished.
This cleans up the event notifications and closes the dialog.
"""
self.finalize()
# Close the dialog
urwid.emit_signal(self, self.signals[0])
def handle_new_location(self, *args):
"""Got a valid new location so we can close this window"""
self.pubpen.unsubscribe(self._ship_moved_sub_id)
self._ship_moved_sub_id = None
urwid.emit_signal(self, 'close_travel_menu')
# urwid event handlers
def logged_in(self, username):
"""Tell the main window that we've logged in"""
urwid.emit_signal(self, 'logged_in')
def keypress(self, size, key):
if key == 'enter':
urwid.emit_signal(self, 'done', self.get_edit_text())
return
elif key == 'esc':
urwid.emit_signal(self, 'done', None)
return
urwid.Edit.keypress(self, size, key)
def on_finish(self, widget):
urwid.emit_signal(self, 'done', self, self.get_edit_text())
def on_close(self, widget, s):
urwid.emit_signal(self, "close", self, s)
def render(self, size, focus):
if size != self.last_size:
self.last_size = size
urwid.emit_signal(self, 'resize', size)
return urwid.ListBox.render(self, size, focus)
