NodeGraph Widget

This is a work in progress widget I'm working on in my spare time, as a learning exercise to write a custom node graph in PySide.

NodeGraphQt is node graph widget that can be implemented and repurposed into applications that supports PySide.

Navigation:

Zoom in/out : Right Mouse Click + Drag or Mouse Scroll Up/Mouse Scroll Down
Pan scene : Middle Mouse Click + Drag or Alt + Left Mouse Click + Drag
Fit to screen : F

Shortcuts:

Select all nodes : Ctrl + A
Delete selected node(s) : Backspace or Delete
Copy node(s): Ctrl + C (copy to clipboard)
Paste node(s): Ctrl + V (paste from clipboard)
Duplicate node(s) : Alt + C
Save node layout : Ctrl + S
Open node layout : Ctrl + O
undo action: Ctrl+z or Command+z (OSX)
Redo action: Ctrl+Shift+z or Command+Shift+z (OSX)
Toggle (enable/disable) node: d

Node Search

Show node search: Tab
Create node from selected: enter

Example Snippet

example script

from NodeGraphQt import NodeGraphWidget, Node

# create a node object
class MyNode(Node):
    """example test node."""

    NODE_NAME = 'Test Node'

    def __init__(self):
        super(MyNode, self).__init__()
        self.add_input('foo')
        self.add_output('bar')

# create a node
my_node = MyNode()

# create node graph.
graph = NodeGraphWidget()

# register node into the node graph.
graph.register_node(MyNode)

# add node to the node graph.
graph.add_node(my_node)

graph.show()