Class: Gtk::GObject

Inherits:
Object
  • Object
show all
Defined in:
lib/gtk.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(*args) ⇒ GObject

Returns a new instance of GObject.



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# File 'lib/gtk.rb', line 101

def initialize *args
  raise "hell" unless args.size == 1 && args.first.is_a?(FFI::Pointer)
  @native = args.first
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method, *args) ⇒ Object 



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# File 'lib/gtk.rb', line 128

def method_missing method,*args
  method = "set_#{method.to_s[0..-2]}".to_sym if method.to_s[-1] == '='

  getter = "get_#{method}".to_sym
  klass = self.class
  while klass
    raise "hell #{method} #{self.inspect}" if klass == Object
    return send(getter,*args) if respond_to?(getter)

    name = "gtk_#{klass.name.split('::').last.underscore}_#{method}".to_sym
    getter_name = "gtk_#{klass.name.split('::').last.underscore}_#{getter}".to_sym
    if m = (Lib.attached_methods[name] || Lib.attached_methods[getter_name])
      raise "#{self.class.name}: #{method}" unless m
      if m[:args].last == :varargs
        raise ArgumentError.new unless m[:args].size <= (args.size+1)
      else
        raise ArgumentError.new unless m[:args].size == (args.size+1)
      end

      types = m[:args][1..-1]
      args = args.map do |arg|
        type = types.shift
        if arg.is_a?(GObject)
          arg.native
        elsif arg.is_a?(Symbol) && type.respond_to?(:superclass) && type.superclass == Enums
          type[arg]
        else
          arg
        end
      end

      return Lib.send(m[:name],@native,*args)
    end
    klass = klass.superclass
  end
end

Instance Attribute Details

#native ⇒ Object

Returns the value of attribute native.



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# File 'lib/gtk.rb', line 99

def native
  @native
end

#type ⇒ Object

Returns the value of attribute type.



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# File 'lib/gtk.rb', line 99

def type
  @type
end

Class Method Details

.type_register ⇒ Object 



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# File 'lib/gtk.rb', line 106

def self.type_register
  type_name = name.gsub(/::/,'__')
  cell_progress_info = Lib::GTypeInfo.new
  @type = Lib.g_type_register_static(
    superclass.type,
    type_name,
    cell_progress_info.ref,
    0
  )
end

Instance Method Details

#signal_connect(name, &block) ⇒ Object 



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# File 'lib/gtk.rb', line 117

def signal_connect(name,&block)
  callback = FFI::Function.new(:void, [:pointer]) do |data|
    block.call
  end
  Lib.g_signal_connect_data(native,name,callback,nil,nil,0)
end

#unref ⇒ Object 



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# File 'lib/gtk.rb', line 124

def unref
  Lib.g_object_unref(native)
end