Re: [MacRuby-devel] Advice for Total Tyro
On 16/10/2011, at 10:12 AM, Bryan Harrison wrote: Objective-C is not without a certain homely charm, but Ruby is obviously the more modern language. So… • Does Xcode treat Ruby as family, or is it a stepchild toiling in the ashes? Are there other tools I'll need? • What's Apple's attitude toward Ruby applications? • Can Ruby take advantage of the (finally!) modern memory management features released with iOS 5? • Will I end up have having learn Objective-C regardless? Basically, If you were me, what would you do, and what order might you do it in? Hi Bryan, Your 5-10 year time frame is a key factor. I started developing an app for the Mac circa 2003 in RealBasic. A couple of years ago I converted it to MacRuby (wrote a convertor in Ruby to do this then manually tweaked). This was after getting to know Ruby through Rails. Despite (or perhaps because of) a background in C years ago, I've tried to avoid Objective-C, although I've read the Hillegass book and done some of the examples. I just prefer Ruby for various reasons. I'm using TextMate for editing the code and XCode for running it. I'm not trying to ship a product yet, so I can live with the occasional MacRuby teething problems. They will be fixed in time. On OSX, MacRuby does do modern memory management, which is a big plus IMHO. Paul Howson Paul Howson Warwick Qld Australia ___ MacRuby-devel mailing list MacRuby-devel@lists.macosforge.org http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
Re: [MacRuby-devel] CVImageBufferRef vs __NSCFType
On 24/08/2010, at 8:49 AM, Thibault Martin-Lagardette wrote: It is a problem in the QTKit bridgesupport, where `captureOutput:didOutputVideoFrame:withSampleBuffer:fromConnection` is not defined. This means it's defintely not something you are doing wrong (and it's not MacRuby's fault either – it has no way, without proper BridgeSupport support, to know the actual type of the parameter) This has been fixed in BridgeSupport already, and should be released soon(-ish). However, I don't think there is any workaround in the meantime, except waiting for the BridgeSupport update. Previous BridgeSupport errors and omissions have been fixed by manual editing of the BridgeSupport file pending an updated version. Can you supply a copy of the fix in this case? Paul Howson ___ MacRuby-devel mailing list MacRuby-devel@lists.macosforge.org http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
[MacRuby-devel] Where are the rake tasks?
This might be a dumb question, but I notice mention of various macruby-related rake tasks (e.g rake clean) Is there a standard set of rake tasks supplied with macruby? Where are the rake files for these tasks? Paul Howson Warwick Qld Australia ___ MacRuby-devel mailing list MacRuby-devel@lists.macosforge.org http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
Re: [MacRuby-devel] CFRange (Boxed) elements not accessible
On 31/05/2010, at 6:12 PM, Laurent Sansonetti wrote:
Any other suggestions for getting around this bug?
It is possible to fix the problem by manually editing the file.
/System/Library/Frameworks/ApplicationServices.framework/Frameworks/CoreText.framework/Resources/BridgeSupport/CoreText.bridgesupport
Then, locate the description of CTLineGetStringRange. It should be something
like:
function name='CTLineGetStringRange'
arg type='^{__CTLine=}'/
retval type64='{?=qq}' type='{?=ii}'/
/function
And replace with:
function name='CTLineGetStringRange'
arg type='^{__CTLine=}'/
retval type64='{_CFRange=qq}' type='{_CFRange=ii}'/
/function
I understand that editing the file manually is probably not an option if you
intend to ship the project later, but I think we can add a fix in trunk to
expose the fields. We can maybe find another workaround if needed.
Editing the file fixed the problem. By the time I'm ready to ship something,
these changes will have percolated through the system I'm sure.
Thanks,
Paul.
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Re: [MacRuby-devel] CFRange (Boxed) elements not accessible
On 31/05/2010, at 11:47 AM, Laurent Sansonetti wrote: Hi Paul, I believe that here the function is typed to return an anonymous struct (likely a bug in the bridgesupport file), so MacRuby won't be able to associate it as an NSRange. You may be able to access location using string_range[0] and length using string_range[1]. Laurent Thanks Laurent. That appears not to work: undefined method `[]' for #Boxed:0x2006947a0 (NoMethodError) Is the bridgesupport file produced elsewhere within Apple? (i.e. out of your control) Any other suggestions for getting around this bug? Thanks, Paul - Paul Howson Warwick Qld Australia ___ MacRuby-devel mailing list MacRuby-devel@lists.macosforge.org http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
Re: [MacRuby-devel] [MacRuby] #628: CTFramesetterCreateFrame doesn't like the CFRange type
On 06/05/2010, at 1:18 PM, Laurent Sansonetti wrote: Hi Paul, On May 5, 2010, at 7:57 PM, Paul Howson wrote: On 26/04/2010, at 1:33 PM, MacRuby wrote: Hi Laurent, What would be a feasible workaround for this problem, given than I'm using MacRuby 0.5 ? i.e. I'm also trying to call: CTFramesetterCreateFrame(framesetter, CFRangeMake(0, 0), path, nil) The second argument is a range which produces the error. Can I edit the bridge support file? Or is there some other workaround? Can I use a more recent built of MacRuby? Or are these too buggy compared to 0.5? Do you have any reason why you cannot use 0.6? It's much stabler than 0.5 :) http://www.macruby.org/blog/2010/04/30/macruby06.html Laurent No reason other than I had not yet noticed the announcement of 0.6! I will upgrade. Thanks. Paul ___ MacRuby-devel mailing list MacRuby-devel@lists.macosforge.org http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
[MacRuby-devel] How to set up and retrieve returned buffer from CTFrameGetLineOrigins?
I need some help with this example which arises at the boundary between MacRuby and the C Core Text framework. Consider the following Core Text function definition: void CTFrameGetLineOrigins( CTFrameRef frame, CFRange range, CGPoint origins[] ) The third argument is defined as: origins The buffer to which the origins are copied. The buffer must have at least as many elements as specified by range's length. Clearly origins is a buffer and a series of CGPoint structures are copied into it. How can this be handled in MacRuby? Specifically: 1. What kind of argument should be passed? Presumably something constructed using the Pointer.new_with_type() function? Documentation on this function is very hard to find. 2. How to access the individual CGPoints in the returned buffer? This is not an Objective-C / MacRuby array object. It is just an address to a buffer. Easy to do in C, but how to do in MacRuby? Paul Howson Warwick Qld Australia ___ MacRuby-devel mailing list MacRuby-devel@lists.macosforge.org http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
Re: [MacRuby-devel] How to set up and retrieve returned buffer from CTFrameGetLineOrigins?
On 07/05/2010, at 1:08 PM, Matt Aimonetti wrote: Duly noted ;) Actually Matt, could you perhaps consider a chapter on the subject of interfacing MacRuby to the various Core xxx C-language frameworks, which is not quite as straightforward as the seamless integration of MacRuby with Cocoa classes. Paul Howson ___ MacRuby-devel mailing list MacRuby-devel@lists.macosforge.org http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
Re: [MacRuby-devel] How to set up and retrieve returned buffer from CTFrameGetLineOrigins?
On 07/05/2010, at 1:03 PM, Laurent Sansonetti wrote:
Hi Paul,
You're right, the Pointer class must be used. Sorry about the lack of
documentation. Here is a snippet that might work:
# n must be defined
origins = Pointer.new(CGPoint.type, n) # this builds a pointer to n times
CGPoint
CTFrameGetLineOrigins(frame, CFRange.new(0, n), origins)
Using Pointer#[] you can simply dereference a given slot in the pointer, as
in C.
n.times { |i| p origins[i] } # should print nth points
Let me know if this works or not for you.
Laurent
Thanks Laurent. I will try it out.
Paul
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[MacRuby-devel] Requirements for Interface Builder to correctly parse MacRuby files?
Hello Laurent et al, In an attempt to ease code management for a large document class, I split the code for my NSDocument subclass into a number of separate Ruby files. e.g. MyDocument-base.rb, MyDocument-commands.rb, and so on, reopening the Ruby class and adding more methods in each file. When the class was in a single source file (eg. MyDocument.rb), Interface Builder would correctly parse this and recognise outlets and action methods. Splitting the class into separate files had the effect of causing Interface Builder to no longer recognise outlets and action methods. Can you please explain how and when IB parses Ruby source files and why splitting a class into separate files breaks the parsing? Is this documented somewhere? Any suggestions for a way around this? Thanks, Paul Howson Queensland Australia ___ MacRuby-devel mailing list MacRuby-devel@lists.macosforge.org http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
Re: [MacRuby-devel] Requirements for Interface Builder to correctly parse MacRuby files?
On 02/02/2010, at 2:14 PM, Laurent Sansonetti wrote: Hi Paul, In theory, splitting files should not be an issue. Keep in mind that the IB parser is very rudimentary at the moment (we are working on a much better solution for a future release), so if you define classes into modules it may not work. A good way to know exactly what IB will read is to call the parser by yourself, manually, from the command line: $ /Developer/usr/bin/rb_nibtool -f MyController.rb You should see on the terminal a property list, basically an array of dictionaries, each one being a class with outlets/actions sub-dictionaries. Laurent Thanks Laurent. That flushed out the problem. When re-opening classes across multiple files, I was not declaring the superclass relationship again. e.g. FILE 1: class A NSDocument … end FILE 2: class A … end When the Ruby compiler sees FILE 2 it already knows A is a subclass of NSDocument. But the Interface Builder parser obviously treats files in isolation and needs to be told about that relationship in each file. Problem solved. Paul ___ MacRuby-devel mailing list MacRuby-devel@lists.macosforge.org http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
Re: [MacRuby-devel] [MacRuby] #499: Order declaring class hierarchy gets MacRuby confused about instance variables
On 11/12/2009, at 11:53 AM, MacRuby wrote: #499: Order declaring class hierarchy gets MacRuby confused about instance variables --+- Reporter: p...@…| Owner: lsansone...@… Type: defect| Status: new Priority: major | Milestone: MacRuby 0.5 Component: MacRuby |Keywords: --+- Comment(by lsansone...@…): Definitely a bug... thanks for the report. This bug has not been fixed in MacRuby 0.5. Will it automatically migrate to being a 0.6 milestone? Paul Howson ___ MacRuby-devel mailing list MacRuby-devel@lists.macosforge.org http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
Re: [MacRuby-devel] How to test if you're running MacRuby vs. Ruby?
On 17/12/2009, at 6:21 PM, Josh Ballanco wrote: def is_macruby? defined? RUBY_ENGINE RUBY_ENGINE == 'macruby' end Cheers, Josh Thanks Josh. However I note this works only if you write: defined?(RUBY_ENGINE) RUBY_ENGINE == 'macruby' i.e. the argument to defined? must be put in parentheses else MacRuby crashes. Paul Howson ___ MacRuby-devel mailing list MacRuby-devel@lists.macosforge.org http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
[MacRuby-devel] How to test if you're running MacRuby vs. Ruby?
Is there a way to test if code is running in MacRuby rather than Ruby? I'm developing and testing some code using plain old Ruby 1.8.7 in TextMate, then integrating it into an Xcode project, so I need to be able to comment out some lines which are Cocoa-dependent when testing in plain Ruby. Paul Howson ___ MacRuby-devel mailing list MacRuby-devel@lists.macosforge.org http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
[MacRuby-devel] String#getbyte not working?
It appears the new String method called getbyte for Ruby 1.9 is not working? Results in an Abort trap message. ~/Dev $ macruby --version MacRuby version 0.5 (ruby 1.9.0) [universal-darwin10.0, x86_64] ~/Dev $ macruby -e ' abc.getbyte(0);' Abort trap Paul Howson Warwick Qld Australia ___ MacRuby-devel mailing list MacRuby-devel@lists.macosforge.org http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
[MacRuby-devel] Do the nightly builds continue from the latest beta
This might be an obvious question, but are the nightly builds (and the nightly build installers) an evolution from whatever is the latest beta? In other words, are the official betas just particular snapshots of the ongoing nightly build process? Paul Howson Warwick Qld Australia ___ MacRuby-devel mailing list MacRuby-devel@lists.macosforge.org http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
Re: [MacRuby-devel] not 32bit
On 09/10/2009, at 4:56 AM, Laurent Sansonetti wrote: Note that MacRuby is only known to work under a certain revision of LLVM trunk (which is documented in the README.rdoc file). Does the MacRuby installer also install LLVM? If not, how is that kept up to date? Paul Howson Queensland, Australia. ___ MacRuby-devel mailing list MacRuby-devel@lists.macosforge.org http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
Re: [MacRuby-devel] Setting Breakpoints/Debugger
On 18/06/2009, at 5:47 PM, Matt Aimonetti wrote: Not being able to use ruby debug in MacRuby is something that used to really bother me at first. I'm thinking about maybe hacking hotconsole so you could run it in the context of your app. That would obviously not be as nice a real debugger but that might be cool. I'm not familiar with hotconsole. Would that be something like script/ console in Rails? That would be useful. Also, thanks Eloy for your response. Good points. Paul ___ MacRuby-devel mailing list MacRuby-devel@lists.macosforge.org http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
[MacRuby-devel] MacRuby Document-based Application template in XCode?
Hi, When using Objective-C, XCode provides you with a template for a Cocoa Document-based Application. For MacRuby we so far have in XCode only MacRuby Application and MacRuby Core Data Application. Would it work to take a new MacRuby Application and copy across the relevant bits from a new Cocoa Document-based Application in order to make a MacRuby Document-based Application? Is it that simple, or are there other gotchas I need to know about? Paul Howson Queensland Australia ___ MacRuby-devel mailing list MacRuby-devel@lists.macosforge.org http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
Re: [MacRuby-devel] A MacRuby-users group?
On 23/05/2009, at 3:35 AM, Laurent Sansonetti wrote: Any though? If most people agree to create a -users group I can ask for an official (macosforge.org) one. If another list is created, could you please consider something a little more flexible than this kind of (old fashioned) mailing list? Something with an RSS feed would make it easier to integrate with other feed subscriptions. And maybe something with a better designed/ more modern web interface? Paul Howson ___ MacRuby-devel mailing list MacRuby-devel@lists.macosforge.org http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
