Contents

require_relative 'observable_array'
require_relative 'observable_model'
require_relative 'observable'
require_relative 'observer'

class TreeItemsBinding
  include Glimmer
  include Observable
  include Observer
  include_package 'org.eclipse.swt'
  include_package 'org.eclipse.swt.widgets'

  def initialize(parent, model_binding, tree_properties)
    @tree = parent
    @model_binding = model_binding
    @tree_properties = [tree_properties].flatten.first.to_h
    update(@model_binding.evaluate_property)
    model = model_binding.base_model
    observe(model, model_binding.property_name_expression)
    add_contents(@tree) {
      on_widget_disposed { |dispose_event|
        unregister_all_observables
      }
    }
  end
  def update(model_tree_root_node=nil)
    if model_tree_root_node and model_tree_root_node.respond_to?(@tree_properties[:children])
      observe(model_tree_root_node, @tree_properties[:text])
      observe(model_tree_root_node, @tree_properties[:children])
      @model_tree_root_node = model_tree_root_node
    end
    populate_tree(@model_tree_root_node, @tree, @tree_properties)
  end
  def populate_tree(model_tree_root_node, parent, tree_properties)
    parent.widget.removeAll
    populate_tree_node(model_tree_root_node, parent.widget, tree_properties)
  end
  def populate_tree_node(model_tree_node, parent, tree_properties)
    table_item = TreeItem.new(parent, SWT::NONE)
    table_item.setText((model_tree_node && model_tree_node.send(tree_properties[:text])).to_s)
      [model_tree_node && model_tree_node.send(tree_properties[:children])].flatten.to_a.compact.each do |child|
      observe(child, @tree_properties[:text])
      populate_tree_node(child, table_item, tree_properties)
    end
  end

end

Version data entries

3 entries across 3 versions & 1 rubygems

Version	Path
glimmer-0.3.4	lib/command_handlers/models/tree_items_binding.rb
glimmer-0.3.3	lib/command_handlers/models/tree_items_binding.rb
glimmer-0.3.2	lib/command_handlers/models/tree_items_binding.rb