Re: [Cs-studio-users] Status and alarm handler severity in a BOY widget

[<tom...@di...>]

Thanks Kay. It looks like my way forward is:

* Top line symbols: Just turn them into GIFs and use the multistate symbol widget. Add support for animated gifs, and work out how to extend the multistate symbol widget to support a pulsing alarm background. 
* Middle line symbols: Add a new style to the action button which is "Rounded rectangle style", which has a pulsing alarm background when BackColor Alarm sensitive is set, and an option to bold the text on non-zero value of the PV.
* Alarm state: Use the alarm PV backend to display severity, and add an option to write to the acknowledge PV from the widget.
* Menu buttons: I managed to miss the combo widget, I'll use that...

I'll talk to ITER about the multistate symbol widget when I've dug a little deeper (the widget code mentions Fred Arnaud as the author). Who is the right contact for the PVManager alarm additions?

Thanks,
Tom Cobb
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> -----Original Message-----
> From: Kasemir, Kay [mailto:kas...@or...]
> Sent: 23 May 2014 15:51
> To: Cobb, Tom (DLSLtd,RAL,TEC); cs-...@li...;
> cs-...@li...
> Subject: RE: Status and alarm handler severity in a BOY widget
> 
> Hi:
> 
> I would avoid rules & linking containers.
> Use a suitable widget, set the PV name, done.
> Maybe adjust some properties beyond the PV name.
> But don't use polylines with visibility rules, linking containers with
> rules and so on to create a widget that doesn't exist.
> If you want a widget that doesn't exist, create that widget.
> What you want to do in your first bullet is similar to the symbol
> widget that ITER created.
> Maybe coordinate with them if additional properties of the symbol
> widget could allow what you want to do?
> 
> For the alarm acknowledgement, contact Eric about his PVManager
> additions to support alarms. Basically, he worked on displaying the
> alarm state from the alarm server in a PV, and allowed acknoledgement
> from writing to a PV.
> 
> For the menu-button-as-combo box, that might also be something that
> you'd have to do.
> If you want the menu button to have such an option, then please
> consider implementing that as an option on the menu button widget.
> A caveat might be that we already have some issues with the mix of
> native (SWT) and drawn (Draw2d) widgets. Originally, all widgets were
> drawn by BOY, and thus all "worked": Widgets in containers are
> correctly cropped when (partially) hidden, the layering is OK. With
> SWT-based widgets, you do get support for ' Tabbing' from widget to
> widget, they have the native look, but some tricks were necessary to
> make them fully work. Since Xihui is no longer working on this, check
> those widgets that use SWT controls carefully to learn about these
> details when you implement a combo box option for the menu button.
> 
> Thanks,
> Kay
> 
> 
> * The top line symbols are a red and a green stacked BOY Polyline
> drawings with visibility rules and an action to open an OPI on click.
> Should I turn them into PNGs and use a multistate symbol widget? Or
> just put the two drawings into an OPI screen complete with rules and
> use a linking container?
> 
> * The middle line symbols are linking containers with action to open an
> OPI on click. The linking container OPI file contains an image, a
> label, and a rounded rectangle with rules for colour and alpha. This is
> really a button, so should I extend the button widget with a new
> display type? I would also like to use these buttons in sub-screens, so
> it would be good to avoid having to distribute this linking container
> OPI with all sub-screens.
> 
> * The component state and severity come from chained calc records in an
> IOC. I would like to be able to acknowledge alarms from this screen, so
> I wonder if there is any merit in using the alarm system. Has anyone
> else done anything similar?
> 
> * The "Open" buttons are Menu buttons. I was expecting a way to be able
> to style them as combo boxes, but this seems to not be available. Is
> there some other way to get a native combo box with entries from an
> mbbo in BOY?
> 
> Thanks,
> Tom Cobb
> 
> 
> 
> 
> 
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Diamond Light Source Limited (company no. 4375679). Registered in England and Wales with its registered office at Diamond House, Harwell Science and Innovation Campus, Didcot, Oxfordshire, OX11 0DE, United Kingdom