Module: JSON::Editor::MenuExtension

Includes:
Gtk
Included in:
EditMenu, FileMenu, OptionsMenu, PopUpMenu
Defined in:
lib/gems/json_pure-1.1.3/lib/json/editor.rb

Overview

This module bundles some method, that can be used to create a menu. It should be included into the class in question.

Instance Attribute Summary collapse

Instance Method Summary collapse

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(*a, &b) ⇒ Object 



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# File 'lib/gems/json_pure-1.1.3/lib/json/editor.rb', line 254

def method_missing(*a, &b)
  treeview.__send__(*a, &b)
end

Instance Attribute Details

Returns the menu.



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# File 'lib/gems/json_pure-1.1.3/lib/json/editor.rb', line 221

def menu
  @menu
end

#treeview ⇒ Object (readonly)

Returns the Gtk::TreeView of this menu.



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# File 'lib/gems/json_pure-1.1.3/lib/json/editor.rb', line 218

def treeview
  @treeview
end

Instance Method Details

#add_item(label, keyval = nil, klass = MenuItem, &callback) ⇒ Object

Adds a Gtk::MenuItem to this instance’s #menu. label is the label string, klass is the item type, and callback is the procedure, that is called if the item is activated.



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# File 'lib/gems/json_pure-1.1.3/lib/json/editor.rb', line 231

def add_item(label, keyval = nil, klass = MenuItem, &callback)
  label = "#{label} (C-#{keyval.chr})" if keyval
  item = klass.new(label)
  item.signal_connect(:activate, &callback)
  if keyval
    self.signal_connect(:'key-press-event') do |item, event|
      if event.state & Gdk::Window::ModifierType::CONTROL_MASK != 0 and
        event.keyval == keyval
        callback.call item
      end
    end
  end
  menu.append item
  item
end

#add_separator ⇒ Object

Adds a Gtk::SeparatorMenuItem to this instance’s #menu.



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# File 'lib/gems/json_pure-1.1.3/lib/json/editor.rb', line 224

def add_separator
  menu.append SeparatorMenuItem.new
end

#create ⇒ Object

This method should be implemented in subclasses to create the #menu of this instance. It has to be called after an instance of this class is created, to build the menu.

Raises:

  • (NotImplementedError) 


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# File 'lib/gems/json_pure-1.1.3/lib/json/editor.rb', line 250

def create
  raise NotImplementedError
end

#initialize(treeview) ⇒ Object

Creates a Menu, that includes MenuExtension. treeview is the Gtk::TreeView, on which it operates.



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# File 'lib/gems/json_pure-1.1.3/lib/json/editor.rb', line 212

def initialize(treeview)
  @treeview = treeview
  @menu = Menu.new
end