[MacRuby-devel] How to use NSIndexSet with tableView data

[Matt Aimonetti]

Did you look at the examples in /Developer/Examples/Ruby/MacRuby

There a few examples using NSView, I'd be curious to know what's missing. (the yml table example should help)

- Matt

Sent from my iPhone

On Oct 23, 2010, at 6:05, Pixoo <madpixoo at gmail.com> wrote:

> Ok it worked \o/
> I'm pretty new at ObjC (therefore I use MacRuby :D) so I don't know NS objects.
> 
> Thanks again :)
> 
> On Sat, Oct 23, 2010 at 2:43 PM, Eloy Duran <eloy.de.enige at gmail.com> wrote:
> You’re right, I forgot to include the line that basically did: @items
> -= fish. However, since an array is actually of the mutable type
> NSMutableArray, you can use its API as well http://bit.ly/90436W.
> 
> irb(main):007:0> a.removeObjectsAtIndexes(indices)
> => ["apple", "orange"]
> 
> If you find you need to work with NSIndexSet's a lot, you could go to
> town and add this to NSIndexSet: http://gist.github.com/642166
> 
> HTH,
> Eloy
> 
> On Sat, Oct 23, 2010 at 2:14 PM, Pixoo <madpixoo at gmail.com> wrote:
> > That doesn't match what I need.
> > Ok, here is what I have :
> >
> > My data is the @items variable which is an array of objects.
> > My tableView is @tableView.
> > The action is a reaction to a click on a remove button after a selection in
> > the table.
> >
> > What I want to do is something like this :
> >
> > def removeItems(sender)
> >   indexes = @tableView.selectedRowsIndexes
> >   @items.delete_at(indexes)
> >   @tableView.reloadData
> > end
> >
> > But I can't get a way to make it work.
> >
> > On Sat, Oct 23, 2010 at 2:03 PM, Eloy Duran <eloy.de.enige at gmail.com> wrote:
> >>
> >> Since an Array is a NSArray: http://bit.ly/de3kxd, maybe something
> >> like the following?
> >>
> >> $ macirb
> >> irb(main):001:0> a = ['apple', 'tuna', 'orange']
> >> => ["apple", "tuna", "orange"]
> >> irb(main):002:0> indices = NSIndexSet.indexSetWithIndex(1)
> >> => #<NSIndexSet:0x20023fe80>
> >> irb(main):003:0> fish = a.objectsAtIndexes(indices)
> >> => ["tuna"]
> >>
> >> Eloy
> >>
> >> On Sat, Oct 23, 2010 at 1:18 PM, Pixoo <madpixoo at gmail.com> wrote:
> >> > Hi !
> >> >
> >> > I'm trying to use a tableView with MacRuby.
> >> > What I want to do is remove items from my data array based on the
> >> > tableView
> >> > selection.
> >> >
> >> > I used @tableView.selectedRowsIndexes but it returns a NSIndexSet and I
> >> > don't know how to use it with my array.
> >> > Can you give me some leads on the subject ?
> >> >
> >> > Thanks,
> >> >
> >> > _______________________________________________
> >> > MacRuby-devel mailing list
> >> > MacRuby-devel at lists.macosforge.org
> >> > http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
> >> >
> >> >
> >> _______________________________________________
> >> MacRuby-devel mailing list
> >> MacRuby-devel at lists.macosforge.org
> >> http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
> >
> >
> > _______________________________________________
> > MacRuby-devel mailing list
> > MacRuby-devel at lists.macosforge.org
> > http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
> >
> >
> _______________________________________________
> MacRuby-devel mailing list
> MacRuby-devel at lists.macosforge.org
> http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
> 
> _______________________________________________
> MacRuby-devel mailing list
> MacRuby-devel at lists.macosforge.org
> http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.macosforge.org/pipermail/macruby-devel/attachments/20101023/a1cadf23/attachment.html>