0.78.0

API

• Added python bindings for signal::num_slots and signal::empty().
• Added Gadget::idleSignal(). This allows Gadgets to do things during the idle times of the host event loop.
• Added NodeEditor.nodeUI() method.
• Added CompoundEditor.editorAddedSignal().
• Enabled subclassing of Box from Python.
• Made RenderManShaderUI public.

Core

• Fixed serialisation of ExecutableOpHolder.
• Added dynamic requirement plugs to Executable.

UI

• Added middle mouse drag for dragging nodules to the script editor without dragging a connection.
• Further increased width of plug labels in NodeEditor (#98).
• Fixed read-only RenderManShader UIs.
• Fixed bug whereby read-only PlugValueWidgets were accepting drags.
• Added Help menu.
• Added NodeGraph auto-scrolling.
• Added support for “presets” parameter type hint.

OS X

• Fixed GafferImageUI linking.