Motivation

This page has the following purposes:

It documents the user and developer features we wish to support in Slicer's version of the VTK Widgets
It documents the changes we would like to ultimately see implemented in the official VTK Widgets.
It presents Slicer specific implementation acting as a "experimental ground" to better understand how VTK widgets could be updated.

Features Missing in 4.4

Control L to make a new fiducial list
Control I for persistent place toggle
Control M to make a ruler between last two placed fiducials
back tick and control/shift back tick to jump slices to fiducials
delete or backspace (or 'd') to delete fiducial under mouse
'p' to place fiducial without having to click in window to grab focus
Right click context menu (allow all operations currently supported in the table widget in the Markups GUI)
modifier key to move fiducials between slices in 2D
scaling issues (2D widget is scaled down by 300x compared to 3D)
restrict to surface (found issues with the point placer wrt how it would be used in Slicer)
rubber band placement for rulers

A start/end and moving event with seed number
A start/end and hover event
near widget vs near handle events
A 2D version of the oriented handle widget
consistent widget interfaces for click to place as well as programatic placement (vs them being added with zero size and having to be manipulated)
consistent distribution of settings from the widget to all handles (process events on/off, visibility, display properties).
expanded WidgetState settings that can be queried and maybe set