[Laszlo-user] Question about basecombobox

[P T Withington]

This seems like a worthwhile change to me.  I would file an  
improvement request in Jira.

I suspect just an oversight in the original design, and a belief that  
once constraints are more efficient than always constraints.  (They  
might be, but it is more important to have correct behavior than  
efficient implementation IMO.)

On 2008-05-16, at 06:55 EDT, Marco Lettere wrote:

> Hello everybody,
> I noticed that the basecombobox (I'm using lps-4.0.10) has a different
> behavior depending whether it is in editable_state or not.
> In non editable_state the width of the cbtext node is ALWAYS bound to
> the width of the interior:
>
> [snipped form basecombobox.lzx line 151]
> <state name="non_editable_state" >
>    <text x="2" y="1" name="cbtext" width="${parent.width - 4}"
> clickable="true" focusable="true">
>        <attribute name="text" type="string" />
>
> Whereas in the editable state the cbtext node gets bound only ONCE to
> the editbkgnd node width.
>
> [snipped form basecombobox.lzx line 203]
> <state name="editable_state" >
>   <view name="editbkgnd" bgcolor="white" width="100%" height="100%" />
>       <inputtext x="2" y="1" name="cbtext" width="$once{parent.width  
> - 4}">
>
> This forces me to write extra code in my app when an editable combo  
> gets
> resized because the inputtext remains always at the starting wdth.
> If the $once constraint could be changed to default then everything
> would be ok (I tried it).
> Is there a reason for that issue or is it a small bug?
> Thank you,
> M.