Module: Btk

Included in:
Gtk::Widget
Defined in:
lib/btk.rb

Class Method Summary collapse

Instance Method Summary collapse

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(name, *argv, &block) ⇒ Object 



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# File 'lib/btk.rb', line 54

def method_missing(name,*argv,&block)
	if name.to_s =~ /^sig_(.*)$/
		return self.signal_connect($1,&block)
	else
		ob=eval("Btk.#{name}(*argv,&block)")
		if self.respond_to? 'pack_start'
			opts=Array(Btk.get_options(argv)[:pack])
			default_opts=[true,true,0]
			opts.each_index{|idx|
				default_opts[idx]=opts[idx] unless opts[idx].nil?
			}
			opts=default_opts
			self.pack_start(ob,opts[0],opts[1],opts[2])
		elsif self.respond_to? 'add'
			self.add(ob)
		end
		return ob
	end
end

Class Method Details

.get_options(argv) ⇒ Object 



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# File 'lib/btk.rb', line 8

def self.get_options(argv)
	options={}
	if argv.last.is_a? Hash
		options=argv.pop
	end
	options
end

.method_missing(name, *argv, &block) ⇒ Object 



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# File 'lib/btk.rb', line 16

def self.method_missing(name,*argv,&block)
	real_name=nil
	[Gtk,Object].each{|t|
		if t.const_defined?(name.to_sym)
			real_name="#{t.name}::#{name}"
		end
	}
	raise "undefined class #{name}" unless real_name
	name=real_name
	options=get_options(argv)

	#create object
	ob=eval("#{name}.new(#{parse_params(:argv,argv)})")

	#parse options
	options.each{|key,value|
		#ignore :pack
		next if key==:pack
		ob_method=nil

		#two methods supported
		methods=["#{key}=".to_s,"set_#{key}".to_s]
		methods.each{|method|
			if ob.respond_to?(method)
				ob_method=method
				break
			end
		}
		ob_method or raise "cannot find method in #{methods.join(',')}"
		value=Array(value)
		eval("ob.send(ob_method,#{parse_params(:value,value)})")
	}
	if block_given?
		yield(ob)
	end
	ob
end

.parse_params(name, argv) ⇒ Object 



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# File 'lib/btk.rb', line 4

def self.parse_params(name,argv)
	(0..Array(argv).size-1).collect{|idx| "#{name}[#{idx}]"}.join(',')
end