Glimmer List Box Single-Selection Data-Binding

I added data-binding support for List boxes.

class Person 
  attr_accessor :country, :country_options
  
  def initialize
    self.country_options=["", "Canada", "US", "Mexico"]
    self.country = "Canada"
  end
end

class HelloList
  include Glimmer
  def launch
    shell {
      list {
        selection bind(Person.new, :country)
      }
    }.open
  end
end

HelloList.new.launch

This produces a tiny shell with a list box that has "Canada" preselected:



This works pretty much like >>Combo box data-binding<<.

By default, List boxes allow single selection. In order to create a multi-selection list that enables users to hold the shift button and select multiple items, you would pass the "SWT::MULTI" constant (e.g. "list(SWT::MULTI) {...} or "list(:multi) {...}")

Stay tuned for my post on multi-selection data-binding support, which will allow binding selection to an array property on the model.