[Laszlo-dev] basegrid attributes with, value=$immediately{null} ?

[André Bargull]

It defaults to "null", because of this line (l. 411 in 
"base/basegrid.lzx").

> initArgs.needsSetRegularColor = this.bgcolor0 != null || this.bgcolor1 
> != null;

If you change it to something else, this test must still pass. So, 
"white" won't be working, maybe to left it blank does work, but I 
haven't tested it so far (e.g. I don't know whether there is a compiler 
default value for attributes of type "color".)


On 6/23/2008 10:36 PM, Donald Anderson wrote:
> Should these be "white"?  Or just left blank?
>
> On Jun 23, 2008, at 4:09 PM, André Bargull wrote:
>
>> If you are using:
>>> <attribute name="bgcolor1" type="color" value="null" />
>> you'll get:
>>> constraint_when.lzx:5:64: *invalid color: null*
>>
>> Somehow obvious, because "bgcolor1" is of type "color" and there is 
>> no color named "null".
>>
>>
>>> [cc-ing laszlo-dev to share these oral traditions]
>>>
>>> `value="$x{y}"` is shorthand for `value="x" when="y"`, so I would 
>>> say  the doc tool needs to know how to parse both.
>>>
>>> OTOH `$immediately{null}` is exactly the same as `null`; i.e., the 
>>>  default value for `when` is immediately.
>>>
>>> Oh and, `${y}` is shorthand for `$always{y}`, because that is the 
>>> most  common reason for a when other than immediately.
>>>
>>> The simple work-around for now would appear to be to remove the 
>>>  (useles) constraint from the source.
>>>
>>> On 2008-06-23, at 15:27 EDT, Donald Anderson wrote:
>>>
>>>  
>>>> > Hey, I noticed you three were the last that touched this, maybe 
>>>> you  > know....
>>>> >
>>>> > <basegrid> has a couple attributes:
>>>> >
>>>> >        <attribute name="bgcolor0" type="color"  > 
>>>> value="$immediately{null}"/>
>>>> >        <attribute name="bgcolor1" type="color"  > 
>>>> value="$immediately{null}"/>
>>>> >
>>>> > $immediately{null} means nothing to the doctools, and it shows as 
>>>>  > just that.
>>>> > I noticed basetabs.lzx has:
>>>> >
>>>> >      <attribute name="inset_top" value="8" type="number"  > 
>>>> when="immediately" />
>>>> >
>>>> > So maybe when="immediately" is meant?
>>>> >
>>>> > This code has been in basegrid.lzx since r726 when it was 
>>>> imported  > from perforce.
>>>> > Thanks,
>>>> >
>>>> > - Don
>>>> >
>>>> >
>>>> > --
>>>> >
>>>> > Don Anderson
>>>> > Java/C/C++, Berkeley DB, systems consultant
>>>> >
>>>> > voice: 617-547-7881
>>>> > email: dda at ddanderson.com <mailto:dda at ddanderson.com>
>>>> > www: http://www.ddanderson.com
>>>> >
>>>> >
>>>> >
>>>>    
>>
>
>
> --
>
> Don Anderson
> Java/C/C++, Berkeley DB, systems consultant
>
> voice: 617-547-7881
> email: dda at ddanderson.com <mailto:dda at ddanderson.com>
> www: http://www.ddanderson.com <http://www.ddanderson.com/>
>
>
>