def _checkDuplicates(keystring, modifiers, type_):
for keyBinding in _plainKeyBindings + _modifiedKeyBindings:
if (_testModifiers(keyBinding.modifiers, modifiers)
and _testMatchString(keyBinding, keystring, type_)):
raise avg.Exception(
'Key binding keystring=%s modifiers=%s type=%s '
'already defined' % (keystring, modifiers, type_))
def _setupInstance(self):
import libavg.app
if libavg.app.instance is not None:
raise avg.Exception('%s has been already instantiated' %
self.__class__.__name__)
libavg.app.instance = self
def _checkDuplicates(keyBinding):
for oldBinding in _keyBindings:
if (oldBinding.type == keyBinding.type and
oldBinding.scancode == keyBinding.scancode and
oldBinding.keyname == keyBinding.keyname and
oldBinding.text == keyBinding.text and
_testModifiers(oldBinding.modifiers, keyBinding.modifiers)):
raise avg.Exception('Key binding scancode=%s keyname=%s text=%s modifiers=%s'
' already defined' % (keyBinding.scancode, keyBinding.keyname,
keyBinding.text, keyBinding.modifiers))
def _bindKey(scancode, keyname, text, handler, help, modifiers, type_):
err = False
if scancode is not None:
if keyname is not None or text is not None:
err = True
if keyname is not None:
if scancode is not None or text is not None:
err = True
if text is not None:
if scancode is not None or keyname is not None:
err = True
if err:
raise avg.Exception(
"Binding a key requires exactly one of scancode, keyname or text.")
keyBinding = _KeyBinding(scancode, keyname, text, handler, help, modifiers, type_)
_checkDuplicates(keyBinding)
_keyBindings.append(keyBinding)
publisher.notifyUpdate()
def _verifyInitialEvent(self, initialEvent, coordSysNode):
if initialEvent is not None:
if not(initialEvent.contact.isNodeInTargets(coordSysNode)):
raise avg.Exception("Gestures with an initialEvent must have coordSysNode set to a node under the event.")