DiagramToolPreview typedef
DiagramToolPreview =
DiagramGesturePreview Function(DiagramEditorState start, DiagramToolPointer pointer)
Computes what one sample of a custom gesture previews, from the gesture's
baseline state start and the current pointer.
Implementation
typedef DiagramToolPreview = DiagramGesturePreview Function(
DiagramEditorState start,
DiagramToolPointer pointer,
);