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

Document based application template
by Andy Stechishin 31 Jan '12

31 Jan '12

I am trying to make a Document based MacRuby application. I create the new project in Xcode4 (4.0.2) and immediately select build and run. The application starts but there is no "Untitled" window and the File->New and File->Open menu options are greyed out. Following the same sequence of actions except choosing an Objective-C based application, the "Untitled" Window appears and the menu options are active. I have compared the project contents, the xib files (including File Owners and First Responders) and linked frameworks and can find no difference that would explain the different operation. It would seem that there is some problem with NSDocumentController in the MacRuby version. It is either not there or has been added properly to the responder chain. Am I missing something? Or is this a defect? Has anyone else encountered this and found a work around? Andy Stechishin

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Re: [MacRuby-devel] MacRuby-devel Digest, Vol 45, Issue 26
by Jean-Denis MUYS 22 Dec '11

22 Dec '11

Thanks for your answer. I followed your advice, and indeed, it works quite nicely. However, in the meantime, I filed a ticket reporting the bug to the MacRuby project. And the bug is already fixed (thanks Watson1978). A commit has been added today with the fix. The latest nightly doesn't yet include the fix, but tomorrow's should. So I built MacRuby from source, and I can confirm that the short sample session that I quoted yesterday now works fine. I can't preclude other bugs to show up downstream, but I have no reason to suspect so. So I now have two working options, between MCPKit and Sequel. MacRuby at its best. For reference, the short version of the recipe for MCPKit is: - Download the source code for Sequel Pro and open the included Xcode project. Sequel Pro uses Interface Builder plugins which are not support in Xcode 4. However, we won't build Sequel Pro, and it's OK here to use Xcode 4. I used Xcode 4.2 - Out of the 8 or so targets included in the Sequel Pro Xcode project, choose the framework target named MCPKit - As of today, this target specifies an old SDK. In the target settings, switch the SDK to the latest SDK (10.7 under Lion for me). - As of today, this target is set up as incompatible with GC. This doesn't work with MacRuby. Switch that target setting to "Supported". This setting is "Objective-C Garbage Collection" in the "Apple LLVM Compiler 3.0 - Language" section. - The "Installation Directory" setting (in the "deployment" section) is set for installing the framework as a private framework in the application bundle. This works for me. If you want to install the framework system-wide, you'll have to change this. - Build the target and copy the output package (MCPKit.framework) to your MacRuby source code directory. - You can close the Sequel Pro Xcode project. Switch to your MacRuby Xcode project. - Go to your app target "Build Phases" tab, and open the "Link Binary With Libraries" section. Click the + button to add the framework. In the library selection sheet, click "Add Other…" and select the MCPKit.framework package. - Click the big + button at the bottom right of the Build Phases pane to add a new Copy Files phase. Select "Frameworks" in the new Copy Phase destination pop up menu. Drag the MCPKit.framework from your project source list to the Copy Phase file list (or alternatively use the + button). - That's it. This recipe actually works for any external private framework. Jean-Denis On 16 nov. 2011, at 19:28, <macruby-devel-request(a)lists.macosforge.org<mailto:macruby-devel-request@lists.macosforge.org>> wrote: Message: 3 Date: Wed, 16 Nov 2011 17:29:18 +0000 From: Steve Clarke <steve(a)sclarkes.me.uk<mailto:steve@sclarkes.me.uk>> To: "MacRuby development discussions." <macruby-devel(a)lists.macosforge.org<mailto:macruby-devel@lists.macosforge.org>> Subject: Re: [MacRuby-devel] symbol not found: _rb_str_freeze Message-ID: <60D7AE97-7D34-481A-BD2E-E17B8B7CAB7A(a)sclarkes.me.uk<mailto:60D7AE97-7D34-481A-BD2E-E17B8B7CAB7A@sclarkes.me.uk>> Content-Type: text/plain; charset=windows-1252 Hi Jean-Denis, I can't answer your question directly but I may be able to help a bit. I also want to use mysql with `MacRuby. I tried mysql gem version 2.8.1 and hit problems I couldn't work around. I also tried ruby-mysql 2.9.4. I did get that to work after some mods, but it was very slow to load and didn't seem totally reliable. I then decided to use an Objective-C framework that accesses SQL. Sequel Pro contains such a framework called MCPKit and it's open source. This means no gems so it loads v quickly. However, the version of MCPKit that I downloaded had manual memory management so wouldn't link with a MacRuby app. I don't know much about Objective-C but I thought I would just try recompiling MCPKit with ARC and garbage collection. To my surprise and delight it worked. I'm afraid I don't know how robust this approach is likely to be. Maybe I've just been lucky. It would be interesting to hear from someone who understands memory management better than me. Steve On 16 Nov 2011, at 15:33, Jean-Denis MUYS wrote: Hi, I have a big showstopper with my app: sequel with the mysql gem fails with the following error message: dyld: Symbol not found: _rb_str_freeze Referenced from: /Library/Frameworks/MacRuby.frameword/[?]/mysql_api.bundle This is mentioned on the net on the sequel project back in february. The diagnostic of the sequel developer was that this is a bug in MacRuby. I am using MacRuby nightly latest as of November 17, 2011, which reports its version as 0.12 I have mysql gem version 2.8.1 I have sequel gem version 3.29.0 Steps to reproduce in macirb: require 'ruby gems' require 'sequel' DB = Sequel.connect(:adapter => 'mysql', :user => 'root', :host => 'localhost', :database => 'test', :password => 'your password') DB.tables Is there any workaround/ easy fix? I would appreciate any suggestion, including of alternate gems to use. Jean-Denis

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ruby structure for NSOutlineView
by François Boone 07 Dec '11

07 Dec '11

Hi, In the same way that this tutorial (http://developer.apple.com/library/mac/#featuredarticles/UsingMacRuby/_inde…) I try to implement a NSOutlineView controller in ruby to make a simple tree in the left part of a window. I read the documentation of NSOutlineView, tasks and I understand I have to write at least four methods in my controller class: • – outlineView:child:ofItem: • – outlineView:isItemExpandable: • – outlineView:numberOfChildrenOfItem: • – outlineView:objectValueForTableColumn:byItem: My questions are: 1) what kind of object I have to use in ruby to fit with outlineView structure? If I understand I need a structure like: Parent_1 : child 1, child 2 Parent_2 : no child Parent_3 : child 1, child 2, child 3 2) Is a Hash like this: Hash[ "Parent_1" => ["child 1", child 2"], "Parent_2", Parent_3 => ["child 1", "child 2", "child_3"]] can be the solution? 3) where I can find this kind of information: the mapping between ruby data structure and NSObject data structure (for future use)? 4) and the last one: I think I do not understand what is item in the last method: – outlineView:objectValueForTableColumn:byItem: item: An item in the data source in the specified tableColumn of the view. So, if I want to make a simple tree, I should have just one column, and then item should be Parent_x or child_x: Is it right? Thank you for reply François

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Re: [MacRuby-devel] ApplicationSupport framework
by Kevin Colyar 25 Nov '11

25 Nov '11

Yes! That did it. So, does this mean folks who trying to use the App will need to be on Lion or have Bridge Support Preview 3 installed for it to work, or does does this just affect the build process? Thanks, Kevin -- Kevin Colyar http://kevin.colyar.net

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ApplicationSupport framework
by Kevin Colyar 25 Nov '11

25 Nov '11

All, I'm unable to access any ApplicationSupport framework constants or methods ( AXAPIEnabled(), AXUIElementCreateApplication(), etc) in my MacRuby 0.10 application. However, the other developer on the project is able to, apparently since he is running OSX 10.7. Anyone know if there is some kind of bridge support difference on 10.7? Thanks, Kevin -- Kevin Colyar http://kevin.colyar.net

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MacRuby promise delivered
by Jean-Denis MUYS 25 Nov '11

25 Nov '11

Following up on my Friday suggestion, I am happy to announce that I implemented a first version a Xcode MacRuby projects that dynamically reloads Ruby source code into a running application, allowing for a very dynamic incremental programming style. go to https://github.com/jdmuys/MacRubyReload to download the project. The ReadMe.markDown text file gives full instructions. Hopefully MacRuby Xcode templates can evolve to automatically provide a similar facility. This is all very simple and very primitive. There is a lot of room for improvement. I also apologize for my Ruby style: I probably haven't written more than 100 or so lines of Ruby code overall yet. I hope this gets the ball rolling. Jean-Denis

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Macruby dispatch problem
by François Boone 25 Nov '11

25 Nov '11

Hi, Once again, I don't if it's the appropriate forum to post this question. I have a problem with the dispatch gem on my mac. 1) Problem: $ macirb irb(main):001:0> require 'dispatch' LoadError: no such file to load -- dispatch 2) My configuration: --> MacBook Pro, 2.5 GHz Intel Core 2 Duo (yes, an old one. Since Christmas is close and you would like to give me a gift .... :) ) --> Snow Leopard 10.6.8 64 bits on ( In system information: Noyau et extensions 64 bits : Oui) --> $ macruby -v MacRuby 0.10 (ruby 1.9.2) [universal-darwin10.0, x86_64] --> $ macgem query --local *** LOCAL GEMS *** dispatch (0.0.1) mspec (1.5.17) Thanks a lot for reply François PS: Is there a forum for beginner questions like mine, because I do not want to bother you with these basic questions

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Slideshow on OS X
by Rúben Fonseca 25 Nov '11

25 Nov '11

Hi all, first post to this mailing list. I'm trying to implement a simple Slideshow application on OS X using Macruby. It seems the normal way of doing this in Objective-C is by using the IKSlideshow class of Quartz framework. However I quickly started having crashes, even on the simplest example. Digging further I found this openradar from 2009 (http://openradar.appspot.com/7281441) stating that IKSlideshow doesn't work under GC. I tried taking the example app of IKSlideshow, enabling GC, and I confirmed it really crashes (Xcode 4.2, OS X 10.7.2). So since Macruby uses GC, I have no way of using IKSlideshow. So my question is, do anyone know an existing framework or sample code for showing fullscreen slideshows on OS X apps? Thanks everybody! Rúben -- Will work for bandwidth

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MacRuby: the definitive guide
by François Boone 25 Nov '11

25 Nov '11

HI, I don't know if it's the right forum to post my question and I apologize if not. I have just bought The definitive guide to learn Macruby and tools to develop some applications. However, I have a problem. page 129, for Actors. In Table View, col. one: I can not edit the cell when I run the program. I open the CoreDataExample and I compare carefully my settings ... without find something ... I am on Mac OS Snow, 10.6.8 and I use Xcode3.2.6 One more thing :) p130, the explanation for choosing another cell class doesn't work: In the identity tab, in class identity field, I can not choose NSButtonCell for example. What I have to do is to drag from class library the NSButtonCell to the cell in my table and the the class identity field is set to NSButtonClass. Maybe it' the right way to do this... I am just a beginner ! Thank you for reply. Have a nice day. François

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Is this possible in MacRuby?
by azzzz＠gmx.net 24 Nov '11

24 Nov '11

Hi All, Is it possible to make a Lion app(/option) with MacRuby which allows you to change the opacity (alpha value) of other apps/windows via the View menu? So say I have a PDF open in Preview, I'd go to: view menu > transparency, and then set it to 50% Is this possible? Would it be a pain to do? I don't think I've seen any MacRuby apps that add functionality to other apps like this so am guessing it's not trivial. Cheers, Aston

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