FW: [squeakland] how to hide ALL connectors to/from a specific node in the Connectors package?

>Hi Lenny,
>I thought you might find this note interesting:
>a fully connected graph using Etoys and the problems Lawson English is
>describing.
>
>He also has a link to an Introduction to Squeak in 68 videos that he
>posted on You Tube.
>Beyond me but I always like knowing there is more.
>Kathleen
>________________________________________
>From: [hidden email]
>[[hidden email]] on behalf of Lawson English
>[[hidden email]]
>Sent: Saturday, September 14, 2013 3:45 PM
>To: etoys dev; Squeakland List
>Subject: [squeakland] how to hide ALL connectors to/from a specific node
>in the Connectors package?
>
>I'll try again:
>
>I have 19 Connectors nodes showing in my project.
>
>There are 19 x 18 connectors -a fully connected graph.
>
>I want to be able to easily tell all connectors to hide using Etoys
>scripting. I already know how to do this with Squeak, but it isn't
>obvious at all how to make it work with etoys, despite the existence of
>a scripting option "tellAllIncomingConnections" and
>"tellAllOutgoingConnections"
>
>I can't figure it out.
>
>I've dropped down into the System browser and looked at the Smalltalk
>code for
>
>#tellAllIncomingConnections: aMessageSelector
>
>and
>
>#tellAllOutgoingConnections: aMessageSelector
>
>     "Send the given message selector to all the players of the
>receiver's costume's outgoing connections"
>
>     self costume outgoingConnections do:
>         [:m |
>             m playerRepresented ifNotNilDo:
>                 [:p | p performScriptIfCan: aMessageSelector]]
>
>I've even tried putting ^#hide into the script.
>
>
>Is this aspect of Connectors + Etoys broken or am I missing something?
>
>I can specify a SPECIFIC Connector to hide, but I have potentially 19 x
>18 or even 256 x 255 of them to work with, so obviously this isn't an
>option.
>
>Do I have to go with my incredibly cumbersome code I worked out in my
>Squeak youtube tutorials and stick that into a script, instead?
>
>
>
>
>
>Thanks.
>
>
>L
>
>
>--
>Squeak from the very start (introduction to Squeak and Pharo Smalltalk
>for the (almost) complete and compleate beginner).
>https://www.youtube.com/playlist?list=PL6601A198DF14788D&feature=view_all
>
>"Debugging is twice as hard as writing the code in the first place.
>Therefore, if you write the code as cleverly as possible, you are, by
>definition, not smart enough to debug it." - Brian Kernighan
>
>_______________________________________________
>squeakland mailing list
>[hidden email]
>http://lists.squeakland.org/mailman/listinfo/squeakland
>

> Hi Lawson,
> This solution is from Lenny Pitt who has helped Etoyillinois a lot!
> Regards,
> Kathleen
> ________________________________________
> From: Pitt, Leonard B
> Sent: Saturday, September 14, 2013 4:58 PM
> To: Harness, Kathleen
> Subject: Re: [squeakland] how to hide ALL connectors to/from a specific node in the Connectors package?
>
> I'm not on squeakland / Etoys mailing list, but perhaps you can pass along
> the solution:
>
> All pins should be siblings of each other.
> All connectors should be siblings of each other.
>
> Now, create a script called "hideme" for a connector, which has only the
> tile "hide".
> So, if a pin tells all incoming connectors to execute the script "hideme",
> they will hide, and similarly, if a pin tells all outgoing connectors to
> execute the script "hideme", they all will hide.
>
> Now, to make ALL the connectors hide at once, we need to tell all pins to
> tell all incoming and outgoing connectors to execute the script hideme.
> To do this, create the following script:
>
> A script for a pin called "hideeveryone" which has in it only the two
> commands
>    tell all incoming connectors execute script hideme.
>    tell all outgoing connectors execute script hideme
>
> Now, just have any pin send to all siblings "hideeveryone".
> As a result, all pins will execute the script "hideeveryone".
> Which means all will send to all their incoming and outgoing connectors
> the command to execute the hideme script.
>
> Note that this is overkill - we don't need to tell both incoming and
> outgoing connectors to execute the hideme script, since every connector is
> an incoming and outgoing from someone.  So the script "hideeveryone" needs
> to only have one of the two lines in it.
>
>
>
>
>
>
>
> On Sat9/14/13 Sep 14,4:04 PM, "Harness, Kathleen" <[hidden email]>
> wrote:
>
>> Hi Lenny,
>> I thought you might find this note interesting:
>> a fully connected graph using Etoys and the problems Lawson English is
>> describing.
>>
>> He also has a link to an Introduction to Squeak in 68 videos that he
>> posted on You Tube.
>> Beyond me but I always like knowing there is more.
>> Kathleen
>> ________________________________________
>> From: [hidden email]
>> [[hidden email]] on behalf of Lawson English
>> [[hidden email]]
>> Sent: Saturday, September 14, 2013 3:45 PM
>> To: etoys dev; Squeakland List
>> Subject: [squeakland] how to hide ALL connectors to/from a specific node
>> in the Connectors package?
>>
>> I'll try again:
>>
>> I have 19 Connectors nodes showing in my project.
>>
>> There are 19 x 18 connectors -a fully connected graph.
>>
>> I want to be able to easily tell all connectors to hide using Etoys
>> scripting. I already know how to do this with Squeak, but it isn't
>> obvious at all how to make it work with etoys, despite the existence of
>> a scripting option "tellAllIncomingConnections" and
>> "tellAllOutgoingConnections"
>>
>> I can't figure it out.
>>
>> I've dropped down into the System browser and looked at the Smalltalk
>> code for
>>
>> #tellAllIncomingConnections: aMessageSelector
>>
>> and
>>
>> #tellAllOutgoingConnections: aMessageSelector
>>
>>      "Send the given message selector to all the players of the
>> receiver's costume's outgoing connections"
>>
>>      self costume outgoingConnections do:
>>          [:m |
>>              m playerRepresented ifNotNilDo:
>>                  [:p | p performScriptIfCan: aMessageSelector]]
>>
>> I've even tried putting ^#hide into the script.
>>
>>
>> Is this aspect of Connectors + Etoys broken or am I missing something?
>>
>> I can specify a SPECIFIC Connector to hide, but I have potentially 19 x
>> 18 or even 256 x 255 of them to work with, so obviously this isn't an
>> option.
>>
>> Do I have to go with my incredibly cumbersome code I worked out in my
>> Squeak youtube tutorials and stick that into a script, instead?
>>
>>
>>
>>
>>
>> Thanks.
>>
>>
>> L
>>
>>
>> --
>> Squeak from the very start (introduction to Squeak and Pharo Smalltalk
>> for the (almost) complete and compleate beginner).
>> https://www.youtube.com/playlist?list=PL6601A198DF14788D&feature=view_all
>>
>> "Debugging is twice as hard as writing the code in the first place.
>> Therefore, if you write the code as cleverly as possible, you are, by
>> definition, not smart enough to debug it." - Brian Kernighan
>>
>> _______________________________________________
>> squeakland mailing list
>> [hidden email]
>> http://lists.squeakland.org/mailman/listinfo/squeakland
>>
>