def main(app, connections, sizes):
registry = qtpynodeeditor.DataModelRegistry()
scene = qtpynodeeditor.FlowScene(registry=registry)
view = qtpynodeeditor.FlowView(scene)
view.setWindowTitle("Style example")
view.resize(800, 600)
shapes = {
idx: QtWidgets.QLabel(f'{idx}: {connections[idx]}')
for idx in range(len(sizes))
}
for size, (idx, shape) in zip(sizes, shapes.items()):
# shape.setFixedSize(size[0] * 10, size[1] * 10)
# shape.setStyleSheet(
# "border: 2px solid white; border-radius: 5px; background: transparent; color: red;")
proxy = scene.addWidget(shape)
shapes[idx] = proxy
proxy.setPos(0, 0)
root = build_tree(shapes, connections)
layout(scene, root, root)
remove_groups(scene, root)
validate(scene, shapes)
connect_widgets(scene, root)
return scene, view, root
def main(app):
registry = qtpynodeeditor.DataModelRegistry()
registry.register_model(NaiveDataModel, category='My Category')
scene = qtpynodeeditor.FlowScene(registry=registry)
connection_style = scene.style_collection.connection
# Configure the style collection to use colors based on data types:
connection_style.use_data_defined_colors = True
view = qtpynodeeditor.FlowView(scene)
view.setWindowTitle("Connection (data-defined) color example")
view.resize(800, 600)
node_a = scene.create_node(NaiveDataModel)
node_b = scene.create_node(NaiveDataModel)
scene.create_connection(
node_a[PortType.output][0],
node_b[PortType.input][0],
)
scene.create_connection(
node_a[PortType.output][1],
node_b[PortType.input][1],
)
return scene, view, [node_a, node_b]
def __init__(self, monitor, *, parent=None):
super().__init__(parent=parent)
self._edges_removed = []
self.monitor = monitor
self.detector = monitor.detector
self.monitor.update.connect(self._ports_updated)
self.registry = qtpynodeeditor.DataModelRegistry()
for ophyd_cls, model in data_model.models.items():
self.registry.register_model(model, category='Area Detector')
self.scene = qtpynodeeditor.FlowScene(
registry=self.registry, allow_node_deletion=False,
allow_node_creation=False)
self._connected_by_user = {}
self.scene.connection_created.connect(self._user_connected_nodes)
self.scene.connection_deleted.connect(self._user_deleted_connection)
self.view = qtpynodeeditor.FlowView(self.scene)
self.view.setMinimumSize(400, 400)
self.layout = QtWidgets.QVBoxLayout()
self.dock = QtWidgets.QDockWidget()
self.layout.addWidget(self.view)
self.setLayout(self.layout)
self._nodes = {}
self._edges = set()
self._auto_position = True
def main(app):
registry = nodeeditor.DataModelRegistry()
models = (AdditionModel, DivisionModel, ModuloModel, MultiplicationModel,
NumberSourceDataModel, SubtractionModel, NumberDisplayModel)
for model in models:
registry.register_model(model, category='Operations', style=None)
registry.register_type_converter(DecimalData, IntegerData,
decimal_to_integer_converter)
registry.register_type_converter(IntegerData, DecimalData,
decimal_to_integer_converter)
scene = nodeeditor.FlowScene(registry=registry)
view = nodeeditor.FlowView(scene)
view.setWindowTitle("Calculator example")
view.resize(800, 600)
view.show()
inputs = []
node_add = scene.create_node(AdditionModel)
node_sub = scene.create_node(SubtractionModel)
node_mul = scene.create_node(MultiplicationModel)
node_div = scene.create_node(DivisionModel)
node_mod = scene.create_node(ModuloModel)
for node_operation in (node_add, node_sub, node_mul, node_div, node_mod):
node_a = scene.create_node(NumberSourceDataModel)
node_a.model.embedded_widget().setText('1.0')
inputs.append(node_a)
node_b = scene.create_node(NumberSourceDataModel)
node_b.model.embedded_widget().setText('2.0')
inputs.append(node_b)
scene.create_connection(
node_a[PortType.output][0],
node_operation[PortType.input][0],
)
scene.create_connection(
node_a[PortType.output][0],
node_operation[PortType.input][1],
)
node_display = scene.create_node(NumberDisplayModel)
scene.create_connection(
node_operation[PortType.output][0],
node_display[PortType.input][0],
)
try:
scene.auto_arrange(nodes=inputs, layout='bipartite')
except ImportError:
...
return scene, view, [node_a, node_b]
def main(app):
style = StyleCollection.from_json(style_json)
registry = qtpynodeeditor.DataModelRegistry()
registry.register_model(MyDataModel, category='My Category', style=style)
scene = qtpynodeeditor.FlowScene(style=style, registry=registry)
view = qtpynodeeditor.FlowView(scene)
view.setWindowTitle("Style example")
view.resize(800, 600)
node = scene.create_node(MyDataModel)
return scene, view, [node]
def main(app):
registry = qtpynodeeditor.DataModelRegistry()
registry.register_model(ImageShowModel, category='My Category')
registry.register_model(ImageLoaderModel, category='My Category')
scene = qtpynodeeditor.FlowScene(registry=registry)
view = qtpynodeeditor.FlowView(scene)
view.setWindowTitle("Image example")
view.resize(800, 600)
node_loader = scene.create_node(ImageLoaderModel)
node_show = scene.create_node(ImageShowModel)
scene.create_connection(
node_loader[PortType.output][0],
node_show[PortType.input][0],
)
return scene, view, [node_loader, node_show]
def main(app, init_style):
# Load style, if an initial style is wanted
if init_style:
with open(init_style) as f:
json_style = json.load(f)
style = StyleCollection.from_json(json_style)
else:
style = None
# Create registry, to register possible node types
registry = nodeeditor.DataModelRegistry()
# Add node models to registry
models = [XORModel, ADDModel, SUBModel, MULModel, DIVModel, MODModel]
# IOModels
io_models = [RGBInModel, RGBOutModel]
for model in models:
registry.register_model(model, category="Arithmetics", style=style)
for model in io_models:
registry.register_model(model, category="IO", style=style)
scene = nodeeditor.FlowScene(style=style, registry=registry)
view = nodeeditor.FlowView(scene)
view.setWindowTitle("Grim")
view.resize(1000, 750)
view.show()
return scene, view
def scene(qapp, registry):
return nodeeditor.FlowScene(registry=registry)