Module: WxRubyStyleAccessors

Included in:
Wx
Defined in:
lib/wx/accessors.rb

Overview

WxSugar - Accessors

The default WxRuby interface has lots and lots of methods like

* get_position()
* set_size(a_size)
* is_checked()
* can_undo()
* has_style(a_style)

and so on. Methods that retrieve set, or query attributes of an object are more normally in Ruby called simply by the attribute name, or, in other cases, with a predicate method:

* pos = my_widget.position
* my_widget.size = a_size
* my_widget.checked?
* my_widget.can_undo?
* my_widget.has_style?

This extension creates an alias for every WxRuby instance method that begins with get_, set_, is_, can_ and has_. Note that if you are calling a ‘setter’ method on self, you must explicitly send the message to self:

# set's self size to be 100px by 100px
self.size = Wx::Size.new(100, 100)
# only sets the value of a local variable 'size'
size = Wx::Size.new

Instance Method Summary collapse

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(sym, *args) ⇒ Object

Ruby-style method named are implemented by method-missing; if an unknown method is called, see if it is a rubyish name for a real method. In principle it would be possible to set up real aliases for them at start-up, but in practice this is far too slow for all the classes that need to be started up.



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# File 'lib/wx/accessors.rb', line 36

def method_missing(sym, *args)
  case sym.to_s
  when /^(\w+)\=$/ 
    meth = "set_#{$1}"
  when /^((?:has|can)\w+)\?$/
    meth = $1
  when /^(\w+)\?$/
    meth = "is_#{$1}"
  else
    meth = "get_#{sym}"
  end
  if respond_to?(meth)
    send(meth, *args)
  else
    super
  end
end