• Jeff Baumes's avatar
    ENH: Adding general hover support to rendered views. · aca5ce64
    Jeff Baumes authored
     - Using vtkHardwareSelector to capture the cell ids on the screen at any
       given time. This is reused as hover events occur.
     - Using vtkHoverWidget to receive timeout events when the mouse hasn't
       moved, and update the hover text then.
     - Added more functionality to vtkHardwareSelector to be able to query
       regions within the captured area (for drag selections) and being able
       to search out from a point to a given threshold distance for a cell
       (for hover text).
     - Added vertex and edge hovering to graph layout view, and edge hovering
       to tree area views.