Change ?choice value for cdfCreateParam , cyclic type

Hello Amar,

what comes to my mind is to create a dummy CDF parameter, which can contain the valid choices for a given instance. Let's name it dummyChoices and you can make it of a type ILList for convenience. You can hide this parameter and change it's values directly from whatever triggers the change of choices for your myCyclicParam and then the callback of the hidden dummyChoices parameter will update the actual choices available for myCyclicParam in your given instance.

You will also need a custom formInitProc that will execute the callback of the dummyChoices parameter when the Property Editor GUI is invoked and it will load the valid values for each instance independently, sine they will be read from it's own CDFs. This should be enough to decouple the described behaviour and since you always only have one Property editor form active for a given device, no one will notice the side effects described by you above.

There might be a better solution to this and I will check this thread in the next few days. Let me know in case what I've written is unclear, so I can elaborate.

Regards,

Petar

I think (I didn't test this) that you could also just update the choices in both the formInitProc and the callback on whatever parameter is controlling the change of choices; I don't believe you'd need t add a dummy parameter to do this (the only reason would be if you want to avoid repeating the same logic in the formInitProc as in the callback, but a shared function could be used in both places so that doesn't seem particularly problematic; probably safer than relying on caching the choices in another parameter, I'd have thought).

Regards,

Andrew

Thanks Petar and Andrew for your responses.

By trying Petar's methods, what I observed is- When I select few layers in my pcell, it is reflected in cyclic options but when I click OK and reopens the edit window, It again shows all the layers. It is not saving previous values (the layers). Do you have any idea, how can I resolve this?

I have tried Andrew's method as well - My procedures are different for forminitProc and SelecLayer procedure. It was not working directly, What I did was I added enable cdf variable for each layer of the original set with default nil - When user selects the layer by SelectLayer Procedure, those cdf variable are marked t. So next time when I will open the edit window by "query" , forminitProc , it will check which layers are marked t, Those layers list it will set to choices of cyclic values. Right now it is working as expected. Is this the correct approach?  Can it create any issue in future ?

Please let me know, if any other information is needed.

Thanks

Amar

Amar,

It's not clear to me what you're doing here. Perhaps you could share your code? Otherwise we're having to guess from your description, and I don't quite get what you're saying.

Here's what I just tried:

/****************************************************/
 LIBRARY = "mylib"
 CELL    = "layerCyclic"
/****************************************************/

let( ( libId cellId cdfId )
    unless( cellId = ddGetObj( LIBRARY CELL )
        error( "Could not get cell %s." CELL )
    )
    when( cdfId = cdfGetBaseCellCDF( cellId )
        cdfDeleteCDF( cdfId )
    )
    cdfId  = cdfCreateBaseCellCDF( cellId )

    ;;; Parameters
    cdfCreateParam( cdfId
        ?name           "bottom"
        ?prompt         "bottom"
        ?defValue       "Metal1"
        ?choices        '("Metal1" "Metal2" "Metal3" "Metal4" "Metal5")
        ?type           "cyclic"
        ?callback       "CCFlayerCyclicSetTopLayer()"
    )
    cdfCreateParam( cdfId
        ?name           "top"
        ?prompt         "top"
        ?defValue       "Metal4"
        ?choices        '("Metal3" "Metal4" "Metal5" "Metal6")
        ?type           "cyclic"
    )

    ;;; Simulator Information
    cdfId->simInfo = list( nil )

    ;;; Properties
    cdfId->formInitProc            = "CCFlayerCyclicInitProc"
    cdfId->doneProc                = ""
    cdfId->buttonFieldWidth        = 340
    cdfId->fieldHeight             = 35
    cdfId->fieldWidth              = 350
    cdfId->promptWidth             = 175
    cdfId->instNameType            = "schematic"
    cdfId->instDisplayMode         = "cellName"
    cdfId->netNameType             = "schematic"
    cdfId->termSimType             = "DC"
    cdfId->termDisplayMode         = "none"
    cdfId->paramSimType            = "DC"
    cdfId->paramDisplayMode        = "parameter"
    cdfSaveCDF( cdfId )
)

Here's the callbacks:

procedure(CCFlayerCyclicSetTopLayer()
  let((currentValue)
    currentValue=cdfgData->top->value
    ;printf("currentValue is %L\n" currentValue)
    cdfgData->top->choices=
      cdr(
        member(
          cdfgData->bottom->value
          list("Metal1" "Metal2" "Metal3" "Metal4" "Metal5" "Metal6")
        ))
;    unless(member(currentValue cdfgData->top->choices)
;      cdfgData->top->value=car(cdfgData->top->choices)
;    )
    t
  )
)

procedure(CCFlayerCyclicInitProc(cdfgData)
  CCFlayerCyclicSetTopLayer()
)

One small niggle is that it can mess up the current value if you select different instances with the edit properties from open. Doesn't really matter if the commented out bit is included or not. This is because the edit properties tries to sort out a value not in the choices when it populates the form, before the formInitProc is executed.

Andrew

Thanks Andrew for your answer. I have done a workaround using a dummy cdf variable and it is working for me now.