Module: Rabbit::Element::Base::DrawHook

Included in:
Rabbit::Element::Base
Defined in:
lib/rabbit/element/base/draw-hook.rb

Constant Summary collapse

@@draw_hook_names = 
[]

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.def_draw_hook(klass, name) ⇒ Object 


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# File 'lib/rabbit/element/base/draw-hook.rb', line 8

def def_draw_hook(klass, name)
  @@draw_hook_names << name
  base_name = "#{name}_draw_proc"
  var_name = "@#{base_name}s"
  klass.module_eval(<<-EOC, __FILE__, __LINE__ + 1)
    def add_#{base_name}(name=nil, &block)
      #{var_name} << [block, name]
      block
    end

    def delete_#{base_name}(name=nil, &block)
      #{var_name}.reject! do |blk,|
        blk == block
      end
    end

    def delete_#{base_name}_by_name(name)
      #{var_name}.reject! do |_, nm|
        name === nm
      end
    end

    def clear_#{base_name}s
      #{var_name} = []
    end

    def #{base_name}s(name)
      #{var_name}.find_all do |_, nm|
        name === nm
      end
    end

    def #{base_name}(name)
      #{var_name}.find do |_, nm|
        name === nm
      end
    end
EOC
end

.def_draw_hooks(klass, *names) ⇒ Object 


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# File 'lib/rabbit/element/base/draw-hook.rb', line 48

def def_draw_hooks(klass, *names)
  names.each do |name|
    klass.def_draw_hook(name)
  end
end

Instance Method Details

#clear_draw_procs ⇒ Object 


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# File 'lib/rabbit/element/base/draw-hook.rb', line 67

def clear_draw_procs
  @@draw_hook_names.each do |name|
    __send__("clear_#{name}_draw_procs")
  end
end