One thing I didn't understand is, are valueholders supposed to announce changes, even if the "value" didn't changed?
|log node | log := OrderedCollection new. node:= TreeNodeModel new content: $a; whenSelectedChanged:[:item | self halt.log add:item]; selected: true; selected: true; selected: true. log will log three times, even the value (selected=true) didn't changed at all. (or at most one if "selected" is initialized with false). Nicolai 2013/12/9 Martin Dias <tinchod...@gmail.com> > thanks for your help, Ben > > On Mon, Dec 9, 2013 at 11:15 AM, Benjamin > <benjamin.vanryseghem.ph...@gmail.com> wrote: > > I am still chasing why it’s executed three times > > > > Must be an issue in the info propagation. > > > > Ben > > > > On 09 Dec 2013, at 06:48, Martin Dias <tinchod...@gmail.com> wrote: > > > > Hi, I'm back with more annoying questions :) > > > > Using #whenSelectedItemsChanged:, I see that the block is evaluated a > lot of > > times: > > > > log := OrderedCollection new. > > roots := #(1 2) collect: [ :each | > > TreeNodeModel new > > content: each; > > selected: true; > > yourself ]. > > > > TreeModel new > > roots: roots; > > multiSelection: true; > > whenSelectedItemsChanged: [ :items | > > log add: items ]; > > openWithSpec. > > log ---> an OrderedCollection(#() an OrderedCollection(1) an > > OrderedCollection(1) an OrderedCollection(1 2) an OrderedCollection(1 2) > an > > OrderedCollection(1 2)) > > > > I'd expect only one evaluation... is it a bug or a feature? > > > > cheers, > > Martín > > > > > > On Sun, Dec 8, 2013 at 12:22 AM, Martin Dias <tinchod...@gmail.com> > wrote: > >> > >> aha! thanks > >> > >> Martín > >> > >> On Sat, Dec 7, 2013 at 10:33 AM, Benjamin > >> <benjamin.vanryseghem.ph...@gmail.com> wrote: > >> > roots := #(1 2 3) collect: [ :e | TreeNodeModel new content: e ; > >> > yourself ]. > >> > > >> > TreeModel new > >> > roots: roots; > >> > multiSelection: true; > >> > openWithSpec. > >> > > >> > roots third > >> > selected: true; > >> > takeHighlight > >> > > >> > Ben > >> > > >> > On 07 Dec 2013, at 05:44, Martin Dias <tinchod...@gmail.com> wrote: > >> > > >> > ouch! thanks Ben. > >> > > >> > Another related question: is there any way of selecting an arbitrary > >> > item? I tried (among others) with: > >> > > >> > TreeModel new > >> > roots: #(1 2 3); > >> > multiSelection: true; > >> > openWithSpec; > >> > selection: 3 > >> > > >> > without success. > >> > > >> > Cheers, > >> > Martín > >> > > >> > > >> > > >> > On Thu, Dec 5, 2013 at 4:17 PM, Benjamin > >> > <benjamin.vanryseghem.ph...@gmail.com> wrote: > >> > > >> > your tree here is single selection so it will not work > >> > > >> > TreeModel new > >> > roots: #(1 2 3); > >> > multiSelection: true; > >> > openWithSpec; > >> > selectAll > >> > > >> > Ben > >> > > >> > On 05 Dec 2013, at 15:38, Martin Dias <tinchod...@gmail.com> wrote: > >> > > >> > Hi, > >> > > >> > I'm not sure how this method should be used. I tried in different > >> > ways, for example: > >> > > >> > TreeModel new > >> > roots: #(1 2 3); > >> > selectAll; > >> > openWithSpec > >> > > >> > But always the items are unselected. Is it a bug? or I didn't find the > >> > way to use it? > >> > > >> > Thanks, > >> > Martín > >> > > >> > > >> > > >> > > > > > > > > >
