Class: Gtk::ComboBox

Inherits:
Object show all
Defined in:
lib/knj/jruby-gtk2/combobox.rb,
lib/knj/ironruby-gtk2/gtk_combobox.rb,
lib/knj/gtk2_cb.rb

Instance Method Summary collapse

Instance Method Details

#add_attribute(*paras) ⇒ Object 



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# File 'lib/knj/jruby-gtk2/combobox.rb', line 13

def add_attribute(arg1, arg2, arg3)
  #do nothing - this method does not exist on Java GTK's ComboBox.
end

#append_model(args) ⇒ Object

Appens a model to the list-store.



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# File 'lib/knj/gtk2_cb.rb', line 55

def append_model(args)
  iter = @ls.append
  appendob = args[:model]
  
  if appendob.respond_to?(:name)
    iter[0] = appendob.name
  elsif appendob.respond_to?(:title)
    iter[0] = appendob.title
  else
    raise "Could not figure out of the name of the object."
  end
  
  @knj[:items] << {
    :iter => iter,
    :object => appendob
  }
  
  return {}
end

#init(items) ⇒ Object

Shortcut to initialize a combobox with items (or models).



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# File 'lib/knj/gtk2_cb.rb', line 15

def init(items)
  @knj = {
    :items => []
  }
  
  @ls = Gtk::ListStore.new(String, String)
  cr = Gtk::CellRendererText.new
  self.pack_start(cr, false)
  self.add_attribute(cr, "text", 0)
  
  if items.is_a?(Array)
    items.each do |appendob|
      if appendob.is_a?(String)
        iter = @ls.append
        iter[0] = appendob
      elsif appendob.respond_to?(:is_knj?)
        self.append_model(:model => appendob)
      end
    end
  elsif items.is_a?(Hash)
    @knj[:type] = :hash
    
    items.each do |key, val|
      iter = @ls.append
      iter[0] = val
      
      @knj[:items] << {
        :iter => iter,
        :object => key
      }
    end
  else
    raise "Unsupported type: '#{items.class.name}'."
  end
  
  self.model = @ls
  self.active = 0
end

#model ⇒ Object 



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# File 'lib/knj/jruby-gtk2/combobox.rb', line 26

def model
  return @model
end

#model=(newmodel) ⇒ Object 



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# File 'lib/knj/jruby-gtk2/combobox.rb', line 17

def model=(newmodel)
  @model = newmodel
  @ob.model = newmodel.ob
  
  if !@renderer_set
    @renderer.text = self.model.dcol[0]
  end
end

#pack_start(widget, val) ⇒ Object 



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# File 'lib/knj/jruby-gtk2/combobox.rb', line 2

def pack_start(widget, arg1, arg2 = false)
  #widget is useually a Gtk::CellRendererText which is started by this way in Java GTK.
  @renderer = widget
  widget.init(self)
  
  if self.model
    widget.text = self.model.dcol[0]
    @renderer_set = true
  end
end

#resort ⇒ Object

Resorts all items in the list-store. If an item doesnt have an ID, then that item will be put first (for ‘Choose’, ‘All’ and such options).



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# File 'lib/knj/gtk2_cb.rb', line 126

def resort
  @ls.set_sort_column_id(0)
  @ls.set_sort_func(0, &lambda{|iter1, iter2|
    item_id_1 = iter1[1].to_i
    item_id_2 = iter2[1].to_i
    
    item_name_1 = iter1[0].to_s.downcase
    item_name_2 = iter2[0].to_s.downcase
    
    if item_id_1 == 0
      return -1
    elsif item_id_2 == 0
      return 1
    else
      return item_name_1 <=> item_name_2
    end
  })
end

#sel ⇒ Object

Returns the active item (or model) for the combobox.



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# File 'lib/knj/gtk2_cb.rb', line 76

def sel
  iter = self.active_iter
  
  if @knj[:items].length > 0
    @knj[:items].each do |item|
      if item[:iter] == iter
        return item[:object]
      end
    end
    
    return false
  else
    return {
      "active" => self.active,
      "text" => iter[0]
    }
  end
end

#sel=(actob) ⇒ Object

Sets the active element (or model) in the combobox.



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# File 'lib/knj/gtk2_cb.rb', line 96

def sel=(actob)
  if actob.respond_to?(:is_knj?)
    @knj[:items].each do |item|
      if item[:object].id == actob.id
        self.active_iter = item[:iter]
        return nil
      end
    end
  elsif @knj[:type] == :hash
    @knj[:items].each do |item|
      if item[:object] == actob
        self.active_iter = item[:iter]
        return nil
      end
    end
  else
    self.model.each do |model, path, iter|
      text = self.model.get_value(iter, 0)
      
      if text == actob
        self.active_iter = iter
        return nil
      end
    end
  end
  
  raise "Could not find such a row: '#{actob}'."
end