Easy node

Easynode is a Python package offering a suite of components for building Node editor-based GUI applications, characterized by its simplicity, configurability, and a decoupled design that separates interface display logic from node computation scheduling logic.

Work in progress

TODO list

• Auto layout.
• Setting for each node(color, size, etc).
• Node status bar.
• Signals and slots.
• Port widget for editing port value.
• Node factory and registration.
• Multiple scenes.
• Node list for search and add widget.
• Undo/Redo.
• Serialization / Deserialization.
  • Save the state of the port widgets.
• Copy and paste.
• Signals for hover, select, etc.
• Node right click menu.
• Node and port documentation.
• Menu.
• Allow change config at runtime with UI.

Signals

Item	Signal	Value type	Description
Node	.selected_changed	bool	Emitted when the node is selected or unselected.
Node	.position_changed	QtCore.QPointF	Emitted when the node position is changed.
Node	renamed	str	Emitted when the node is renamed.
Port	.edge_added	Edge	Emitted when an edge is added to the port.
Port	.edge_removed	Edge	Emitted when an edge is removed from the port.
Edge	.selected_changed	bool	Emitted when the edge is selected or unselected.
Graph	.elements_changed	None	Emitted when the graph elements(nodes and edges) is changed.
Graph	.node_added	Node	Emitted when a node is added to the graph.
Graph	.node_removed	Node	Emitted when a node is removed from the graph.
Graph	.edge_added	Edge	Emitted when an edge is added to the graph.
Graph	.edge_removed	Edge	Emitted when an edge is removed from the graph.
GraphicsView	.selected_node_items_moved	QtCore.QPointF	Emitted when the selected nodes are moved.
GraphicsView	.edge_drag_mode_changed	bool	Emitted when the edge drag mode is changed.
NodeEditor	.scene_added	GraphicsScene	Emitted when a scene is added to the node editor.
NodeEditor	.scene_removed	GraphicsScene	Emitted when a scene is removed from the node editor.
NodeEditor	.view_changed	GraphicsView	Emitted when the view is changed.