Class: Glimmer::Tk::MenuItemProxy

Inherits:
WidgetProxy show all
Defined in:
lib/glimmer/tk/menu_item_proxy.rb

Constant Summary collapse

ACCELERATOR_MODIFIER_EVENT_MAP = 
{
  'Command' => 'Command',
  'Cmd' => 'Command',
  'Meta' => 'Command',
  'Option' => 'Option',
  'Opt' => 'Option',
  'Alt' => 'Option',
  'Shift' => 'Shift',
  'Ctrl' => 'Control',
  'Control' => 'Control',
}
ATTRIBUTES = 
%w[activebackground activeforeground background bitmap columnbreak compound font foreground hidemargin indicatoron menu offvalue onvalue selectcolor selectimage state underline value]

Constants inherited from WidgetProxy

WidgetProxy::FONTS_PREDEFINED, WidgetProxy::HEXADECIMAL_CHARACTERS

Instance Attribute Summary collapse

Attributes inherited from WidgetProxy

#args, #bind_ids, #children, #destroyed, #keyword, #parent_proxy, #tk

Attributes included from DraggableAndDroppable

#on_drag_motion_block

Instance Method Summary collapse

Methods inherited from WidgetProxy

#add_observer, #ancestor_proxies, #apply_style, #attribute_argument_normalizers, #attribute_setter, #clear_children, #content, create, #destroy, #disabled, #disabled=, #enabled, #enabled=, #event_generate, #font=, #grid, #has_attribute?, #has_state?, #hidden, #hidden=, #image_argument, #inspect, #method_missing, #normalize_attribute_arguments, #on, #post_add_content, #post_initialize_child, #respond_to?, #root_parent_proxy, #style=, tk_widget_class_for, #tk_widget_has_attribute_getter_setter?, #tk_widget_has_attribute_setter?, #toplevel_parent_proxy, #unbind_all, #visible, #visible=, #widget_attribute_listener_installers, #widget_custom_attribute_mapping, widget_exists?, widget_proxy_class, #window?

Methods included from DraggableAndDroppable

#drag_source=, #drop_target=, #make_draggable, #make_droppable, #make_non_draggable, #make_non_droppable, #on_drag_start_block=, #on_drop_block=, #textvariable_defined?

Constructor Details

#initialize(underscored_widget_name, parent_proxy, args, &block) ⇒ MenuItemProxy

Returns a new instance of MenuItemProxy.



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# File 'lib/glimmer/tk/menu_item_proxy.rb', line 43

def initialize(underscored_widget_name, parent_proxy, args, &block)
  @options = args.last.is_a?(Hash) ? args.last : {}
  @label = @options[:label]
  @label ||= 'About' if args.first == :about
  super
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class Glimmer::Tk::WidgetProxy

Instance Attribute Details

#options ⇒ Object (readonly)

Returns the value of attribute options.



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# File 'lib/glimmer/tk/menu_item_proxy.rb', line 41

def options
  @options
end

Instance Method Details

#about? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/glimmer/tk/menu_item_proxy.rb', line 134

def about?
  @args.first == :about
end

#accelerator ⇒ Object 



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# File 'lib/glimmer/tk/menu_item_proxy.rb', line 58

def accelerator
  @accelerator
end

#accelerator=(value) ⇒ Object 



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# File 'lib/glimmer/tk/menu_item_proxy.rb', line 50

def accelerator=(value)
  @accelerator = value
  configure_menu_item_attribute(accelerator: value)
  root_parent_proxy.bind(accelerator_event) do |event|
    @command_block&.call(event)
  end
end

#accelerator_event ⇒ Object 



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# File 'lib/glimmer/tk/menu_item_proxy.rb', line 62

def accelerator_event
  accelerator_parts = @accelerator.split('+')
  accelerator_parts.map do |accelerator_part|
    ACCELERATOR_MODIFIER_EVENT_MAP[accelerator_part.capitalize] ||
      (accelerator_part.size == 1 && accelerator_part.downcase) ||
      (function_key?(accelerator_part) && accelerator_part.upcase) ||
      accelerator_part
  end.join('-')
end

#checkbutton? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/glimmer/tk/menu_item_proxy.rb', line 126

def checkbutton?
  @args.first == :radiobutton
end

#command? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/glimmer/tk/menu_item_proxy.rb', line 118

def command?
  @args.first.nil? || @args.first == :command || @args.first.is_a?(Hash)
end

#command_block=(proc) ⇒ Object 



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# File 'lib/glimmer/tk/menu_item_proxy.rb', line 104

def command_block=(proc)
  @command_block = proc
  configure_menu_item_attribute(command: @command_block)
end

#compound ⇒ Object 



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# File 'lib/glimmer/tk/menu_item_proxy.rb', line 100

def compound
  @compound
end

#compound=(value) ⇒ Object 



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# File 'lib/glimmer/tk/menu_item_proxy.rb', line 95

def compound=(value)
  @compound = value
  configure_menu_item_attribute(compound: @compound)
end

#configure_menu_item_attribute(attribute_value_hash) ⇒ Object

configures menu item attribute through parent menu



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# File 'lib/glimmer/tk/menu_item_proxy.rb', line 173

def configure_menu_item_attribute(attribute_value_hash)
  if preferences? && attribute_value_hash[:command]
    ::Tk.ip_eval("proc ::tk::mac::ShowPreferences {} {#{::Tk.install_cmd(attribute_value_hash[:command])}}") if OS.mac?
  elsif help? && attribute_value_hash[:command]
    ::Tk.ip_eval("proc ::tk::mac::ShowHelp {} {#{::Tk.install_cmd(attribute_value_hash[:command])}}") if OS.mac?
  elsif quit? && attribute_value_hash[:command]
    ::Tk.ip_eval("proc ::tk::mac::Quit {} {#{::Tk.install_cmd(attribute_value_hash[:command])}}") if OS.mac?
  else
    if attribute_value_hash.keys.first.to_s == 'label'
      @parent_proxy.tk.entryconfigure @last_label, attribute_value_hash
      self.value = variable.value = attribute_value_hash.values.first if variable.value == @last_label
    else
      @parent_proxy.tk.entryconfigure label, attribute_value_hash
    end
  end
end

#function_key?(string) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/glimmer/tk/menu_item_proxy.rb', line 72

def function_key?(string)
  string.downcase.match(/^f\d+$/)
end

#get_attribute(attribute) ⇒ Object 



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# File 'lib/glimmer/tk/menu_item_proxy.rb', line 204

def get_attribute(attribute)
  if has_attributes_attribute?(attribute)
    @parent_proxy.tk.entrycget label, attribute
  else
    super
  end
end

#handle_listener(listener_name, &listener) ⇒ Object 



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# File 'lib/glimmer/tk/menu_item_proxy.rb', line 109

def handle_listener(listener_name, &listener)
  case listener_name.to_s.downcase
  when 'command'
    self.command_block = listener
  else
    super
  end
end

#has_attributes_attribute?(attribute) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/glimmer/tk/menu_item_proxy.rb', line 190

def has_attributes_attribute?(attribute)
  attribute = attribute.to_s
  attribute = attribute.sub(/\?$/, '').sub(/=$/, '')
  ATTRIBUTES.include?(attribute)
end

#help? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/glimmer/tk/menu_item_proxy.rb', line 142

def help?
  @args.first == :help
end

#image ⇒ Object 



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# File 'lib/glimmer/tk/menu_item_proxy.rb', line 91

def image
  @image
end

#image=(*args) ⇒ Object 



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# File 'lib/glimmer/tk/menu_item_proxy.rb', line 86

def image=(*args)
  @image = image_argument(args)
  configure_menu_item_attribute(image: @image)
end

#label ⇒ Object 



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# File 'lib/glimmer/tk/menu_item_proxy.rb', line 82

def label
  @label
end

#label=(value) ⇒ Object 



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# File 'lib/glimmer/tk/menu_item_proxy.rb', line 76

def label=(value)
  @last_label = @label
  @label = value
  configure_menu_item_attribute(label: @label)
end

#preferences? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/glimmer/tk/menu_item_proxy.rb', line 138

def preferences?
  @args.first == :preferences
end

#quit? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/glimmer/tk/menu_item_proxy.rb', line 146

def quit?
  @args.first == :quit
end

#radiobutton? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/glimmer/tk/menu_item_proxy.rb', line 122

def radiobutton?
  @args.first == :radiobutton
end

#selection ⇒ Object 



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# File 'lib/glimmer/tk/menu_item_proxy.rb', line 168

def selection
  variable.value == label
end

#selection=(value) ⇒ Object 



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# File 'lib/glimmer/tk/menu_item_proxy.rb', line 160

def selection=(value)
  if value
    self.value = variable.value = label
  elsif checkbutton?
    self.value = variable.value = ''
  end
end

#separator? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/glimmer/tk/menu_item_proxy.rb', line 130

def separator?
  @args.first == :separator
end

#set_attribute(attribute, value) ⇒ Object 



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# File 'lib/glimmer/tk/menu_item_proxy.rb', line 196

def set_attribute(attribute, value)
  if has_attributes_attribute?(attribute)
    configure_menu_item_attribute(attribute => value)
  else
    super
  end
end

#variable(auto_create: true) ⇒ Object 



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# File 'lib/glimmer/tk/menu_item_proxy.rb', line 150

def variable(auto_create: true)
  if @variable.nil? && auto_create
    sibling_variable = sibling_radio_menu_items.map {|mi| mi.variable(auto_create: false)}.compact.first
    @variable = sibling_variable.nil? ? ::TkVariable.new : sibling_variable
  else
    @variable
  end
  @variable
end