January 2011 - MacRuby-devel - lists.macosforge.org

constants again
by Joel Reymont 11 Jan '11

11 Jan '11

What should be the constant name below? Is there a way to find out the constants defined in a framework? Thanks, Joel --- grep -i ro_MGSFOTextView build/Release/MGSFragaria.framework/Resources/BridgeMetadata/MGSFragaria.bridgemetadata <constant name='ro_MGSFOTextView' type='@'/> irb(main):001:0> framework './build/Release/MGSFragaria.framework' => true irb(main):002:0> ro_MGSFOTextView NameError: undefined local variable or method `ro_MGSFOTextView' for main:TopLevel irb(main):003:0> Ro_MGSFOTextView NameError: uninitialized constant Ro_MGSFOTextView irb(main):004:0> RO_MGSFOTextView NameError: uninitialized constant RO_MGSFOTextView --- http://wagerlabs.com | @wagerlabs | http://www.linkedin.com/in/joelreymont

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C-level blocks (issue #712)?
by Rolando Abarca 11 Jan '11

11 Jan '11

Hi all, I've taken a look at the referred issue (#712), but I'm not sure of the final implemented syntax. I'm trying to use a NSOpenPanel, so far this is what I'm doing: {{{ def loadSprite(sender) @panel.beginSheetModalForWindow(@window, completionHandler:lambda { |code| NSLog("code: #{code}") }) end }}} what's the Right Way(tm) to use a NSOpenPanel? thanks! -- Rolando Abarca M. Games For Food S.p.A. http://www.gamesforfood.com Phone: +1 (408) 345-5433

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Custom URL scheme (again)
by Martin Hawkins 11 Jan '11

11 Jan '11

I went back to this today to take it a step further and found my way blocked - it seems to be a MacRuby thing because this is trivial to implement in Objective-C. This code is now: framework 'Cocoa' class AppDelegate def initialize registerExperimental @eventDescriptor = NSAppleEventDescriptor.descriptorWithString("this_is_a_string") end def registerExperimental sharedAEManager = NSAppleEventManager.sharedAppleEventManager sharedAEManager.setEventHandler(self, andSelector: :"getURL:event:withReplyEvent:returnEvent", forEventClass: KInternetEventClass, andEventID:KAEGetURL) end def getURL(event, withReplyEvent:returnEvent) if event.respond_to?(:paramDescriptorForKeyword) url = event.paramDescriptorForKeyword(keyDirectObject).to_s end end def applicationShouldTerminateAfterLastWindowClosed(theApplication) return true; end end I've edited the info.plist to register 'experimental' as a custom URL scheme and tested it by calling it in Safari. Typing 'experimental://' in the Safari address bar produces an error: experimental[4759]: -[AppDelegate getURL:event:withReplyEvent:returnEvent]: unrecognised selector sent to instance 0x200c0e240 I've tried re-writing the 'andSelector: :"getURL:event:withReplyEvent:returnEvent"' part of the setEventHandler call every way I can think of: andSelector:"getURL:event:withReplyEvent:returnEvent" andSelector:"getURL:withReplyEvent" to name but two. I'm fairly sure the whole method name has to be sent, including the argument names, so I can't really see what is wrong. As I say, I've constructed the Obj-C equivalent (experimental-cpp) where typing 'experimental-cpp:///splat' produces exactly the required response. Any ideas anyone, please?

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combining macrubyc with xcode
by Joel Reymont 11 Jan '11

11 Jan '11

How do I combine compilation with macrubyc and xcode? I would like to use macrubyc in the Release configuration, to avoid distributing Ruby source code files. Thanks, Joel --- http://wagerlabs.com | @wagerlabs | http://www.linkedin.com/in/joelreymont

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MacBacon, a fork of Bacon the RSpec clone.
by Eloy Duran 10 Jan '11

10 Jan '11

Hi, I've just released a fork of the Bacon spec library for MacRuby. It specifically differs in the fact that it is NSRunloop aware, which is most visible in the `wait' method that allows you to schedule a block of assertions for later on the runloop. To be clear, the main thread is never halted and thus optimized for MacRuby/Objective-C testing. The repo: https://github.com/alloy/MacBacon And the gem: https://rubygems.org/gems/mac_bacon To be fair, I haven't used it in a project yet, but will start doing so tomorrow. If that's not test-first, I don't know what is ;) So I look forward to your experiences. Cheers, Eloy

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syntax highlighting
by Joel Reymont 10 Jan '11

10 Jan '11

Is there anything I can piggyback on to implement syntax highlighting in a Cocoa editing window? Is there some Ruby lexing code, for example, that I can reuse? Thanks, Joel --- http://wagerlabs.com | @wagerlabs | http://www.linkedin.com/in/joelreymont

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convert array into a string
by Joel Reymont 10 Jan '11

10 Jan '11

I would like to do mungedRegistration = [...] registrationString = NSString.stringWithUTF8String(mungedRegistration) but this results in can't convert Array into String (TypeError) What is the best approach here? I do need my munged registration to be an array since I'm initializing it with numbers and then do calculations on these numbers to convert them into character values. Thanks, Joel --- http://wagerlabs.com | @wagerlabs | http://www.linkedin.com/in/joelreymont

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Initializing Pointer.new with specific value
by Dave Baldwin 10 Jan '11

10 Jan '11

In OpenGL some functions take pointers and these are easily handled via v = Pointer.new('f', 20) glVertexPointer(3, GL_FLOAT, 3, v) (the C prototype is void glVertexPointer(GLint size, GLenum type, GLsizei stride, const GLvoid * pointer); however in some cases this function has been overloaded so you pass in an integer as the last parameter. In C this is easy glVertexPointer(3, GL_FLOAT, 3, (void *) 12) but how do I do this with MacRuby Pointer objects? (the source code and googling hasn't helped). I can (and have) written this as an objective-C method and called this method from ruby so I have a workaround. I can understand if this is not possible or desirable from ruby as it is a horrible bit of API design in OpenGL in any case. Dave.

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Custom url scheme
by Martin Hawkins 10 Jan '11

10 Jan '11

I'm trying to create a custom URL scheme following the instructions here http://www.cocoadev.com/index.pl?HowToRegisterURLHandler and in the Cocoa Scripting Guide p108. I've not been getting anywhere! I've got at least two problems here: (I'm running OS X 10.6.6 with MacRuby 0.8) # Attempt #1 # AppDelegate.rb # experimental framework 'Foundation' framework 'ApplicationServices' class AppDelegate def initialize registerExperimental end def registerExperimental sharedAEManager = NSAppleEventManager.sharedAppleEventManager sharedAEManager.setEventHandler(self, andSelector:getURL, forEventClass:kInternetEventClass, andEventID:kAEGetURL) end def getURL end end The above results produce an error - undefined local variable or method `kInternetEventClass' despite the fact that they are defined in HIServices/ InternetConfig.h. Is this where I need to delve into the depths of BridgeSupport? If the above is changed to def getURL(event, returnEvent) # do something with event here to parse the url end then I get wrong number of arguments (0 for 2) (ArgumentError) which is what I expected, but I am confused as to how to parse the 'andSelector' part of the code and sharedAEManager.setEventHandler(self, andSelector:getURL(event, withReplyEvent:returnEvent), forEventClass:kInternetEventClass, andEventID:kAEGetURL) is clearly wrong. Any guidance as to how to fix these two issues will be most gratefully received! thanks

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Help subclassing NSXMLElement
by Robert Rice 10 Jan '11

10 Jan '11

I've been trying to subclass NSXMLElement in MacRuby without success. I have implemented NSXMLDocument.replacementClassForClass returning my custom subclass to replace NSXMLElement but the parser returns NSXMLFidelityElement instances rather than my custom class instances. Has anyone done this in MacRuby? Thanks, Bob Rice

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