Modified the behavior of spinner widget to react differently with dif…

[wmliuanl]

…ferent key combinations

arrow up/down: change by 1 increment
page up/down: change by 10 increment
Alt + arrow up/down change by 5 increment
Alt + page up/down change by 50 increment

Checklist

• Testing:

  • The feature has automated tests
  • Tests were run
  • If not, explain how you tested your changes
  • The features have been tested at our facility. The old spinner widget only increase or decrease by 1 increment when arrow up/down keys are pressed. But our operators are used to the our old inhouse control system programs which has edit controls that can response with different increments for different key combinations. To smooth up the transition from old inhouse control system to EPICS control system, I modified the spinner widget to provide similar behavior from CSS Phoebus OPIs.

• Documentation:

  • The feature is documented
  • The documentation is up to date
  • Release notes:
    • Added an entry if the change is breaking or significant
    • Added an entry when adding a new feature