| Removing a Connection from a Diagram [message #122457] |
Mon, 15 March 2004 10:36  |
Eclipse User |
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Originally posted by: phil.williams.toadmail.com
My editor allows a user to modify the number of connections on a
NodeEditPart.
When the user deletes a node that is already connected to another edit
part, I would like to also disconnect and delete the connection. I am
able to locate the corresponding editpart that belongs to the Link model
element, but I am not sure what to do with the ConnectionEditPart since
I can not find its parent to remove it.
So what I am left with is a connection drawn on the diagram that is no
longer selectable and can not be removed.
How do I go about removing the figure for the connection
(PolylineConnection) from the diagram?
Thanks,
Phil
FYI, this is a repost of an earlier post that was buried in a thread. :)
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| Re: Removing a Connection from a Diagram [message #122559 is a reply to message #122541] |
Mon, 15 March 2004 15:55  |
| Eclipse User |
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Originally posted by: phil.williams.toadmail.com
This is a multi-part message in MIME format.
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Thanks. I am removing it from the model and am now calling
refreshXXXConnections.
However, now it seems that the NodeFigure is not being redrawn
properly. I am calling repaint in the setPins() method on the figure as
you suggested earlier. However, the old pins are still present until
the node is moved in the diagram. The procedure for removing the pins
is as follows:
1) remove the connections from the model
2) update the connection list in the edit part
3) update the figure with the correct number of anchors
4) repaint the figure
I must be missing something (once again) but have not found the right
bits as of yet. Any clues are always appreciated.
Thanks again,
Phil
Randy Hudson wrote:
>You should be removing the connection from your model. It is not any
>different than if the user had selected the connection and pressed delete.
>The commands should delete the connection, which should notify both source
>and target editparts. Those editparts would then call
>refreshXxxConnections(), which will get rid of the editpart.
>
>You should only be calling removeTargetConnection directly if you are trying
>to speed things up and bypass the normal rfreshTargetConnections call.
>
>"Phil Williams" <phil.williams@toadmail.com> wrote in message
>news:c34i9b$v7l$1@eclipse.org...
>
>
>>My editor allows a user to modify the number of connections on a
>>NodeEditPart.
>>
>>When the user deletes a node that is already connected to another edit
>>part, I would like to also disconnect and delete the connection. I am
>>able to locate the corresponding editpart that belongs to the Link model
>>element, but I am not sure what to do with the ConnectionEditPart since
>>I can not find its parent to remove it.
>>
>>So what I am left with is a connection drawn on the diagram that is no
>>longer selectable and can not be removed.
>>
>>How do I go about removing the figure for the connection
>>(PolylineConnection) from the diagram?
>>
>>Thanks,
>>Phil
>>
>>FYI, this is a repost of an earlier post that was buried in a thread. :)
>>
>>
>
>
>
>
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Thanks. I am removing it from the model and am now calling
refreshXXXConnections.<br>
<br>
However, now it seems that the NodeFigure is not being redrawn
properly. I am calling repaint in the setPins() method on the figure
as you suggested earlier. However, the old pins are still present
until the node is moved in the diagram. The procedure for removing the
pins is as follows:<br>
<br>
1) remove the connections from the model<br>
2) update the connection list in the edit part<br>
3) update the figure with the correct number of anchors<br>
4) repaint the figure<br>
<br>
I must be missing something (once again) but have not found the right
bits as of yet. Any clues are always appreciated.<br>
<br>
Thanks again,<br>
Phil<br>
<br>
<br>
Randy Hudson wrote:<br>
<blockquote cite="midc3539b$nbf$1@eclipse.org" type="cite">
<pre wrap="">You should be removing the connection from your model. It is not any
different than if the user had selected the connection and pressed delete.
The commands should delete the connection, which should notify both source
and target editparts. Those editparts would then call
refreshXxxConnections(), which will get rid of the editpart.
You should only be calling removeTargetConnection directly if you are trying
to speed things up and bypass the normal rfreshTargetConnections call.
"Phil Williams" <a class="moz-txt-link-rfc2396E" href="mailto:phil.williams@toadmail.com"><phil.williams@toadmail.com></a> wrote in message
<a class="moz-txt-link-freetext" href="news:c34i9b$v7l$1@eclipse.org">news:c34i9b$v7l$1@eclipse.org</a>...
</pre>
<blockquote type="cite">
<pre wrap="">My editor allows a user to modify the number of connections on a
NodeEditPart.
When the user deletes a node that is already connected to another edit
part, I would like to also disconnect and delete the connection. I am
able to locate the corresponding editpart that belongs to the Link model
element, but I am not sure what to do with the ConnectionEditPart since
I can not find its parent to remove it.
So what I am left with is a connection drawn on the diagram that is no
longer selectable and can not be removed.
How do I go about removing the figure for the connection
(PolylineConnection) from the diagram?
Thanks,
Phil
FYI, this is a repost of an earlier post that was buried in a thread. :)
</pre>
</blockquote>
<pre wrap=""><!---->
</pre>
</blockquote>
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