class: CompositeNode

[14:7] extends: object

A render node that uses Porter/Duff compositing operators to combine its child with the background.

Members

• handleObj
• lib
• retainedCallbacks
• signalHandlerNames
• signalSetterHandlers

Methods

• CompositeNode (child = null, mask = null, op = null)

  Creates a GskRenderNode that will composite the child onto the background with the given operator wherever the mask is set. Note that various operations can modify the background outside of the child's bounds, so the mask may cause visual changes outside of the child.

  • @p child is The child to composite.
  • @p mask is The mask where the compositing will apply.
  • @p op is The compositing operator.

• toNativeHandle (Source)

  Normalizes a constructor argument into a raw pointer carrier. Accepts a raw NativeHandle, a raw NativeBuffer returned from fn.call(...), another generated wrapper exposing handle(), or null. Returns null when the argument carries no pointer.

  • @p Source is the raw handle, raw buffer, wrapper, or null.
  • @r A raw pointer carrier or null when no pointer is present.

• getLib ()

  Returns the opened native library for this generated wrapper.

  • @r The opened native library.

• handle ()

  Returns the wrapped NativeHandle.

  • @r The wrapped NativeHandle.

• isNull ()

  Returns true when the wrapped handle is null.

  • @r A bool.

• describe ()

  Returns a small string for debugging generated wrappers.

  • @r A string.

• asRenderNode ()

  Wraps this handle as RenderNode.

  • @r A RenderNode object.

• get_child ()

  Gets the child node that is getting composited by the given @node.

• get_mask ()

  Gets the mask node that describes the region where the compositing applies.

• get_operator ()

  Gets the compositing operator used by this node.