[MacRuby-devel] MacRuby on Mavericks

Robert Carl Rice rice.audio at pobox.com
Sat Nov 9 22:16:12 PST 2013

On Nov 7, 2013, at 9:07 AM, Joshua Ballanco <jballanc at gmail.com> wrote:

> * MacRuby integration with Xcode relies on rb-nibtool, but the Xcode team has repeatedly signaled (not so subtly) that they are not interested in keeping this shim working.

I assume that rb-nibtool scans rb files to identify possible IBOutlet and IBAction targets. If this is it's only function then I would not miss it if it goes away. I have discovered that it is easy to define IBOutlet and IBAction targets in Objective-C files without recoding any ruby code into Objective-C. The results are much better because the linkage and error messages are very fast while the scanning of ruby files gets very slow on a large project.

To avoid adding a lot of files, I created a single Objective-C .h and .m file for each of my nib files, including the main, giving it a corresponding name.

//  MainWindow.h
//  RiceCNC
//  Created by Robert Rice on 11/9/13.
//  Copyright (c) 2013 Robert Rice. All rights reserved.

#import <Foundation/Foundation.h>

@interface AppDelegate : NSObject

@property (weak) IBOutlet id template_menu;
@property (weak) IBOutlet id example_menu;

- (IBAction)makeNewMachine:(id)sender;
- (IBAction)makeNewEngine:(id)sender;


//  MainWindow.m
//  RiceCNC
//  Created by Robert Rice on 11/9/13.
//  Copyright (c) 2013 Robert Rice. All rights reserved.

#import "MainWindow.h"

@implementation AppDelegate

@synthesize template_menu;
@synthesize example_menu;

- (IBAction)makeNewMachine:(id)sender {};
- (IBAction)makeNewEngine:(id)sender {};


The IBActions are easy. I simply define empty methods for my actions. MacRuby will replace the empty methods with the ruby methods.

For each IBOutlet, I define a C property, remove the attr_writer or attr_accessor from my ruby class, then reference the property from my ruby class using the dot syntax.

For this example, I changed @template_menu to self.template_menu and @example_menu to self.example_menu:

# AppDelegate.rb
# MacCNC
# Created by Robert Rice on 3/10/12.
# Copyright 2012 Rice Audio. All rights reserved.

class AppDelegate
#	attr_writer :template_menu, :example_menu
	def init
		if super
#			ErrorLog.instance.debug( "AppDelegate init" )
		@pdf_window_controller			= nil
		@mail_bridge_window_controller	= nil
	def awakeFromNib
#		ErrorLog.instance.debug( "AppDelegate awakeFromNib" )
		bundle	= NSBundle.mainBundle
		engines	= bundle.pathsForResourcesOfType( "engine", inDirectory:"Templates" )
		engines.each do | path |
			title	= path.split( '/' ).last.split( '.' ).first
			item	= self.template_menu.addItemWithTitle( title, action:"open_engine_template:", keyEquivalent:"" )
			item.setTarget( self )

		examples	= bundle.pathsForResourcesOfType( "cnc", inDirectory:"Examples" )
		examples.each do | path |
			title	= path.split( '/' ).last.split( '.' ).first
			item	= self.example_menu.addItemWithTitle( title, action:"open_document_template:", keyEquivalent:"" )
			item.setTarget( self )

	def makeNewMachine( sender )
		makeNewDocument( "Machine" )
	def makeNewEngine( sender )
		makeNewDocument( "Engine" )
	def makeNewDocument( type )
		ErrorLog.instance.warn( "makeNewDocument #{ type }" )
		nserror		= Pointer.new( :object )
		controller	= NSDocumentController.sharedDocumentController
		document	= controller.makeUntitledDocumentOfType( type, error:nserror )
		if document
			controller.addDocument( document )
			ErrorLog.instance.error( "Error creating new #{ type } Document" )

	def open_engine_template( sender )
		open_file( NSBundle.mainBundle.pathForResource( sender.title, ofType:"engine", inDirectory:"Templates" ) )
	def open_machine_template( sender )
		open_file( NSBundle.mainBundle.pathForResource( sender.title, ofType:"machine", inDirectory:"Templates" ) )
	def open_document_template( sender )
		open_file( NSBundle.mainBundle.pathForResource( sender.title, ofType:"cnc", inDirectory:"Examples" ) )
	def open_file( path )
		url			= NSURL.fileURLWithPath( path )
		nserror		= Pointer.new( :object )
		NSDocumentController.sharedDocumentController.openDocumentWithContentsOfURL( url,
			display:true, error:nserror )

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