[Newbies] Displaying rows of data, PluggableMultiColumnListMorph
tapplek at gmail.com
Sat Oct 13 19:12:58 UTC 2007
On Fri, Oct 12, 2007 at 06:56:55PM +0200, Peter Schneider wrote:
> i want to display the results of an ongoing calculation. I'm not terribly
> concerned about speed, as this is just for educational purposes.
> So i figured that PluggableMultiColumnListMorph would be a good place to
> My problem now is, that it only wants to take Arrays as its source list.
> Because i don't know how many rows of data need to be displayed, i just
> threw all of them in an OrderedCollection.
> If i convert this OrderedCollection with "asArray" and feed it to the
> MultiColoumnMorph the contents are displayed just fine, but i can't select
> any entries or navigate using the arrow keys.
> In fact, i can only select as much entries as there are columns in the
> To illustrate, i did something roughly similiar to the following:
> |column1 column2|
> result := OrderedCollection new.
> column1 := OrderedCollection new.
> column2 := OrderedCollection new.
> column1 add: 'x-component'; add: 'purz'; add: 'durst'; add: 'puh'.
> column2 add: 'y-component'; add: 'purz1'; add: 'durst1'; add: 'puh1'.
> result add: (column1 asArray); add: (column2 asArray).
> result := result asArray.
I don't understand how this hooks up to
PluggableMultiColumnListMorph. Is this the getListSelector code?
Looking at the class comment, it says getListSelector should
return an OrderedCollection of Arrays, where each Array is a
row. You seem to be doing something in column-major order, so I
don't really see how this code is supposed to work
Matthew Fulmer -- http://mtfulmer.wordpress.com/
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