How to use nib outlets/connections with Objective-C bridge

Le 27 oct. 06 à 19:17, Quentin Mathé a écrit :
> Le 19 oct. 06 à 12:04, baptisteheyman a écrit :
>
&gt; > --- In iolanguage%40yahoogroups.com">iolanguageyahoogroups.com, Quentin Mathé <gnustep-
> quentin...>
&gt; > wrote:
&gt; > >
> > > I would like to know whether it's currently possible to access
&gt; > > outlets created in a nib from Io code.
>; >
> > You can with an Io controller.
> >
> > For example that interface :
> >
> > interface Controller : NSObject
> > {
> > id tableView;
> > id window;
&gt; > }
> >
> > should be replaced by that object :
> >
> > NSObject newSubclassNamed:(&quot;Controller") do(
> > setTableView: := method(sender, self tableView := sender)
&gt; > setWindow: := method(sender, self window := sender)
&gt; > )
>
&gt; Thanks for the reply. I just tried it today and it works well. Going
>; to try more stuff.
How do I proceed to add new slots which aren't methods but rather
instance variables?

I tried without success:

NSObject newSubclassNamed:(&quot;Controller") do(
setTableView: := method(sender, self tableView := sender)
setWindow: := method(sender, self window := sender)
myVar := "whatever"
)

I replaced myVar := "whatever" by a setSlot, updateSlot or newSlot
call without success either. Another thing I tried is to put in the
slot an NSString or a nil value rather an Io string.
Is this problem related to the fact we cannot add instance variables
on the fly on Objc side?

Cheers,
Quentin.

--
Quentin Mathé
qmathe%40club-internet.fr">qmatheclub-internet.fr

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.

--- In iolanguage%40yahoogroups.com">iolanguageyahoogroups.com, Quentin Mathé <gnustep-quentin...>
wrote:
>;
> Le 27 oct. 06 à 19:17, Quentin Mathé a écrit :
> > Le 19 oct. 06 à 12:04, baptisteheyman a écrit :
> >
> > > --- In iolanguage%40yahoogroups.com">iolanguageyahoogroups.com, Quentin Mathé <gnustep-
> > quentin>
> > > wrote:
&gt; > > >
> > > > I would like to know whether it's currently possible to access
&gt; > > > outlets created in a nib from Io code.
>; > >
> > > You can with an Io controller.
> > >
> > > For example that interface :
> > >
> > > interface Controller : NSObject
> > > {
> > > id tableView;
> > > id window;
&gt; > > }
> > >
> > > should be replaced by that object :
> > >
> > > NSObject newSubclassNamed:(&quot;Controller") do(
> > > setTableView: := method(sender, self tableView := sender)
&gt; > > setWindow: := method(sender, self window := sender)
&gt; > > )
> >
> > Thanks for the reply. I just tried it today and it works well. Going
>; > to try more stuff.
&gt; How do I proceed to add new slots which aren't methods but rather
> instance variables?
>
> I tried without success:
>
> NSObject newSubclassNamed:(&quot;Controller") do(
> setTableView: := method(sender, self tableView := sender)
&gt; setWindow: := method(sender, self window := sender)
&gt; myVar := "whatever"
> )
>
> I replaced myVar := "whatever" by a setSlot, updateSlot or newSlot
> call without success either. Another thing I tried is to put in the
> slot an NSString or a nil value rather an Io string.
&gt; Is this problem related to the fact we cannot add instance variables
> on the fly on Objc side?
>;
> Cheers,
&gt; Quentin.
>
> --
> Quentin Mathé
>; qmathe...
>

I had added a method to create instance variable from Io side, but i
finally removed it because i thought it could be problematic for the
heritage on the Objective-C side.

An Objective-C object allocates memory for its instance variables and
its ancestors instance variables, so what would happen if you added an
instance variable to an ancestors ? That's why categories don't allow
extra variables either.

To make your Io variable visible on the Objective-C side you could
just add getter/setter methods.

NSObject newSubclassNamed:(&quot;Controller") do(
setTableView: := method(sender, self tableView := sender)
setWindow: := method(sender, self window := sender)
_myVar := "whatever"
myVar := method(_myVar)
setMyVar: := method(value, _myVar = value)
)

Hope that helps.

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.

--- In iolanguage%40yahoogroups.com">iolanguageyahoogroups.com, Quentin Mathé <gnustep-quentin...>
wrote:
>;
> Le 27 oct. 06 à 19:17, Quentin Mathé a écrit :
> > Le 19 oct. 06 à 12:04, baptisteheyman a écrit :
> >
> > > --- In iolanguage%40yahoogroups.com">iolanguageyahoogroups.com, Quentin Mathé <gnustep-
> > quentin>
> > > wrote:
&gt; > > >
> > > > I would like to know whether it's currently possible to access
&gt; > > > outlets created in a nib from Io code.
>; > >
> > > You can with an Io controller.
> > >
> > > For example that interface :
> > >
> > > interface Controller : NSObject
> > > {
> > > id tableView;
> > > id window;
&gt; > > }
> > >
> > > should be replaced by that object :
> > >
> > > NSObject newSubclassNamed:(&quot;Controller") do(
> > > setTableView: := method(sender, self tableView := sender)
&gt; > > setWindow: := method(sender, self window := sender)
&gt; > > )
> >
> > Thanks for the reply. I just tried it today and it works well. Going
>; > to try more stuff.
&gt; How do I proceed to add new slots which aren't methods but rather
> instance variables?
>
> I tried without success:
>
> NSObject newSubclassNamed:(&quot;Controller") do(
> setTableView: := method(sender, self tableView := sender)
&gt; setWindow: := method(sender, self window := sender)
&gt; myVar := "whatever"
> )
>
> I replaced myVar := "whatever" by a setSlot, updateSlot or newSlot
> call without success either. Another thing I tried is to put in the
> slot an NSString or a nil value rather an Io string.
&gt; Is this problem related to the fact we cannot add instance variables
> on the fly on Objc side?
>;
> Cheers,
&gt; Quentin.
>
> --
> Quentin Mathé
>; qmathe...
>

I had added a method to create instance variable from Io side, but i
finally removed it because i thought it could be problematic for the
heritage on the Objective-C side.

An Objective-C object allocates memory for its instance variables and
its ancestors instance variables, so what would happen if you added an
instance variable to an ancestors ? That's why categories don't allow
extra variables either.

To make your Io variable visible on the Objective-C side you could
just add getter/setter methods.

NSObject newSubclassNamed:(&quot;Controller") do(
setTableView: := method(sender, self tableView := sender)
setWindow: := method(sender, self window := sender)
_myVar := "whatever"
myVar := method(_myVar)
setMyVar: := method(value, _myVar = value)
)

Hope that helps.

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.