[News.eclipse.technology.gmf] Re: two figure for a connection + Source E

["Boris Blajer" <boris.blajer@xxxxxxxxxxx>]

Hi Angelo,

In most cases, returning null instead of a command that cannot be executed 
solves the problem with the cursor.

Best regards,
Boris


"Angelo Marguglio" <angelo.marguglio@xxxxxxxxx> wrote in message 
news:op.tdjluv0rzq4ppf@xxxxxxxxxxxxxxxxxxxxx
Thanks for the replay, but I don't find an explicit description about the
use of the "disallow cursor" (in another thread I didn't have this answer)
BYE


In data Fri, 28 Jul 2006 19:15:02 +0200, Radek Dvorak
<radek.dvorak@xxxxxxxxxxx> ha scritto:

> Hi Angelo,
>
> There is a couple of reasons why it is not working as you expect.
> First, in case that a link mapping uses 'sourceFeature', incorrect
> context is used for the source end (derived from the containmentFeature) 
> in
> the generated code.
> This has been fixed as 
> https://bugs.eclipse.org/bugs/show_bug.cgi?id=148818
> and
> will arrive in 1.0.1 soon. You can check GMF downloads page for 
> maintenance
> builds containing
> the fix.
> With this fix your models allow only links creation started from the 
> Square
> source and
> targeted to Circle. Those source ends which do not satisfy the source
> constraint prevent the connection
> from starting but disallow cursor is not shown while internally, the
> constraint evaluates correctly.
> I guess, the problem of the 'disallow cursor' was described earlier in 
> this
> newgroup.
>
> Regards,
> /Radek
>
>
> "Angelo Marguglio" <angelo.marguglio@xxxxxxxxx> wrote in message
> news:op.tdeb9wttzq4ppf@xxxxxxxxxxxxxxxxxxxxx
> In the attachment I've put the whole model that I use for this example.
> With both the constraints I can't make any kind of link.
> BYE
>
> In data Fri, 28 Jul 2006 12:54:58 +0200, Radek Dvorak
> <radek.dvorak@xxxxxxxxxxx> ha scritto:
>
>> Hi Angelo,
>>
>> Could you please post your 'sourceEnd constraint' and LinkMapping
>> settings?
>> From the description so far it is difficult to say what could be the
>> problem.
>>
>> Regards,
>> /Radek
>>
>> "Angelo Marguglio" <angelo.marguglio@xxxxxxxxx> wrote in message
>> news:op.tdd269olzq4ppf@xxxxxxxxxxxxxxxxxxxxx
>> The cursor is only an aspect of this problem. I make an example: In a
>> shape-like diagram I have two kinds of node, a circle and a square. I
>> want
>> create only connections from circles to squares. When I try to make a
>> connection outcoming from a square, I can start the creation but I can't
>> complete it. I'd like to disable this incomplete creation.
>>
>> Thanks in advance
>>
>>
>> In data Thu, 27 Jul 2006 17:34:18 +0200, Radek Dvorak
>> <radek.dvorak@xxxxxxxxxxx> ha scritto:
>>
>>> Hi Angelo,
>>>
>>> Concerning the "Source End Constraint", is it only a problem of
>>> incorrect
>>> cursor or
>>> is creation of the undesirable connection allowed?
>>>
>>> Regards,
>>> /Radek
>>>
>>> "Angelo Marguglio" <angelo.marguglio@xxxxxxxxx> wrote in message
>>> news:op.tdcoygdbzq4ppf@xxxxxxxxxxxxxxxxxxxxx
>>> Hi all!
>>> I''m developing a diagram in which I'd like to connect two node by a
>>> connection. I can specify the kind of this connection using an
>>> enumeration
>>> and every kind has an own figure.
>>> In the .gmfmap I have three "Link Mapping" in which I set the kind of
>>> the
>>> connection by a "Feature Seq Initializer". In the generated diagram
>>> there
>>> are three EditPart, one for each link mapping, with an own inner 
>>> figure.
>>> In runtime I have a problem. When I try to create a new connection, two
>>> links are displayed.
>>> I read a thread about a similar problem, but I didn't find a solution
>>> for
>>> this problem.
>>>
>>> I have also a second problem: in my editor the "Source End Constraint"
>>> doesn0t work fine. I'd like to show the disallow cursor when the mouse
>>> is
>>> over a node that I can't connect (as a source).
>>>
>>
>>
>>
>
>
>



-- 
Angelo Marguglio

reply to: angelo.marguglio[at]libero.it