def add_output(self,
name='output',
multi_output=True,
display_name=True,
color=None):
"""
Add output :class:`Port` to node.
Args:
name (str): name for the output port.
multi_output (bool): allow port to have more than one connection.
display_name (bool): display the port name on the node.
color (tuple): initial port color (r, g, b) 0-255.
Returns:
NodeGraphQt.Port: the created port object.
"""
if name in self.outputs().keys():
raise PortRegistrationError(
'port name "{}" already registered.'.format(name))
view = self.view.add_output(name, multi_output, display_name)
if color:
view.color = color
view.border_color = [min([255, max([0, i + 80])]) for i in color]
port = Port(self, view)
port.model.type_ = OUT_PORT
port.model.name = name
port.model.display_name = display_name
port.model.multi_connection = multi_output
self._outputs.append(port)
self.model.outputs[port.name()] = port.model
return port
def disconnectPorts(self, source: Port, target: Port):
src_model = source.model
trg_model = target.model
src_id = source.node().id
trg_id = target.node().id
port_names = src_model.connected_ports.get(trg_id)
if port_names is []:
del src_model.connected_ports[trg_id]
if port_names and target.name() in port_names:
port_names.remove(target.name())
port_names = trg_model.connected_ports.get(src_id)
if port_names is []:
del trg_model.connected_ports[src_id]
if port_names and source.name() in port_names:
port_names.remove(source.name())
source.view.disconnect_from(target.view)
def add_input(self,
name='input',
multi_input=False,
display_name=True,
color=None,
locked=False,
painter_func=None):
"""
Add input :class:`Port` to node.
Warnings:
Undo is NOT supported for this function.
Args:
name (str): name for the input port.
multi_input (bool): allow port to have more than one connection.
display_name (bool): display the port name on the node.
color (tuple): initial port color (r, g, b) ``0-255``.
locked (bool): locked state see :meth:`Port.set_locked`
painter_func (function or None): custom function to override the drawing
of the port shape see example: :ref:`Creating Custom Shapes`
Returns:
NodeGraphQt.Port: the created port object.
"""
if name in self.inputs().keys():
raise PortRegistrationError(
'port name "{}" already registered.'.format(name))
port_args = [name, multi_input, display_name, locked]
if painter_func and callable(painter_func):
port_args.append(painter_func)
view = self.view.add_input(*port_args)
if color:
view.color = color
view.border_color = [min([255, max([0, i + 80])]) for i in color]
port = Port(self, view)
port.model.type_ = PortTypeEnum.IN.value
port.model.name = name
port.model.display_name = display_name
port.model.multi_connection = multi_input
port.model.locked = locked
self._inputs.append(port)
self.model.inputs[port.name()] = port.model
return port
def add_output(self, name='output', multi_output=True, display_name=True):
"""
Add output port to node.
Args:
name (str): name for the output port.
multi_output (bool): allow port to have more than one connection.
display_name (bool): display the port name on the node.
Returns:
NodeGraphQt.Port: the created port object.
"""
view = self.view.add_output(name, multi_output, display_name)
port = Port(self, view)
port.model.type = 'out'
port.model.name = name
port.model.display_name = display_name
port.model.multi_connection = multi_output
self._outputs.append(port)
self.model.outputs[port.name()] = port.model
return port
def add_output(self, name='output', multi_output=True, display_name=True):
"""
Add output :class:`Port` to node.
Args:
name (str): name for the output port.
multi_output (bool): allow port to have more than one connection.
display_name (bool): display the port name on the node.
Returns:
NodeGraphQt.Port: the created port object.
"""
if name in self.outputs().keys():
raise AssertionError('port name "{}" already taken.'.format(name))
view = self.view.add_output(name, multi_output, display_name)
port = Port(self, view)
port.model.type_ = OUT_PORT
port.model.name = name
port.model.display_name = display_name
port.model.multi_connection = multi_output
self._outputs.append(port)
self.model.outputs[port.name()] = port.model
return port