April 2009 - MacRuby-devel - lists.macosforge.org

Running the experimental branch
by Mike Moore 05 Apr '09

05 Apr '09

In the comments of Charlie's latest blog post, someone showed their benchmarks of the 0.5 branch running tak(). http://blog.headius.com/2009/04/how-jruby-makes-ruby-fast.html#comments I'd like to do the same but rake isn't giving me a macruby executable. How do I go beyond miniruby and get a ruby capable of running Charlie's bench_tak.rb?

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Accessing Obj-C InstVars from Ruby
by Edward Hynes 05 Apr '09

05 Apr '09

Is there a way to access instance variables defined in an Objective-C class from a Ruby extension? I'm porting some of Apple's example code to MacRuby as a learning experience and would like to do so incrementally. Porting the code one class at a time works fine, but for some of the larger classes I'd like to port them a few methods at a time. Here's an example of what's happening --- Example.h --- @interface Example : NSObject { NSString *instVarA; NSString *instVarB; } - (NSString *)methodA; @end --- Example.m --- #import "Example.h" @implementation Example - (id)init { if (self = [super init]) { instVarA = @"instVarA"; instVarB = @"instVarB"; } return self; } - (NSString *)methodA { return instVarA; } @end --- Example.rb --- class Example def methodB @instVarB end end Then at runtime, when I execute the following... example = Example.alloc.init puts example.methodA.inspect puts example.methodB.inspect .. I get "instVarA" nil How do I access InsVarB from Ruby? Thanks, Ed

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Re: [MacRuby-devel] Obj-C translation
by Frisco Del Rosario 04 Apr '09

04 Apr '09

> I guess the another thing to check is that you have actually set your > class (with the code below) to be the delegate in IB? Yup. I'm going to follow Steinberg's directions to build that little app with his supplied Obj-C code. Perhaps I should be working with Hillegass's vol. 3 instead. Because then if I go awry, I can fall back on your (John Shea's) translations.

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Macruby.framwork into Bundle
by Markus Werner 03 Apr '09

03 Apr '09

Hello List, I used the tutorial and tried to put the Macruby.framework into my Bundle. The executable already contains the right "path" to the framework and I copied the Run Script from "Embeded Mac Ruby Target" to my regular target, so the framework is in the bundle. (Why is this an extra target at all ? No criticism, just curiosity :-) ) If I do this thing with a virgin application, the application starts on a mac without macruby installed, but if I use my learnig project "http://github.com/polarix/iterm-auto-bookmark/tree/master ", the applications starts and quit immediately, without any error. BTW If somthing went wrong, on a call to a method (ruby or object-c object) you alway get a "NoMethodError" even if the method exists. The same thing applies to RubyCocoa. See http://discussions.apple.com/thread.jspa? threadID=1957372&tstart=60 if you like. :-D with kind regards Markus

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Trac ticket 232
by Jason Morrison 03 Apr '09

03 Apr '09

Hi MacRuby, I built MacRuby 0.4 from SVN on OSX 10.5.6 (x86) successfully, but could not run the example applications. I found http://www.macruby.org/trac/ticket/232 and thought that perhaps I was having the same issue, though I couldn't find any additional discussion on that issue: $ open ./ABPresence.app LSOpenFromURLSpec() failed with error -10810 for the file /Users/jasonmorrison/dev/MacRuby-trunk/sample-macruby/bin/ABPresence.app. I eventually found out that the bundled executables were not chmodded +x, and doing so fixed it: $ pwd /Users/jasonmorrison/dev/MacRuby-trunk/sample-macruby/bin $ ls ABPresence.app/ CircleView.app/ EmbeddedMacRuby.app/ OutlineView.app/ PathDemo.app/ ViewModelDemo.app/ AnimatingViews.app/ DotView.app/ FlickrDemo.app/ PagePacker.app/ RoundTransparentWindow.app/ $ chmod u+x FlickrDemo.app/Contents/MacOS/FlickrDemo $ open ./FlickrDemo.app # and off we go... So, I signed up for Trac, went back to the ticket, with the intent of commenting on it. Alas! I saw: Trac detected an internal error: SubversionException: ('unable to open database file', 200030) So, this post to the mailing list is the best I can do, I think. I hope this helps someone! Cheers, -Jason -- Jason Morrison jason.p.morrison(a)gmail.com http://jayunit.net (585) 216-5657

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Re: [MacRuby-devel] Obj-C translation
by Frisco Del Rosario 03 Apr '09

03 Apr '09

Brad Wilson: > This is untested, but I'd suggest trying: > def webView(sender, didReceiveTitle:title, forFrame:frame) > sender.window.setTitle(title) > end > Does that sound right to anybody else? Eloy Duran: > Yep that's correct. Though Brad's suggestion did not result in the delegate method being triggered, and neither did the change setTitle:title, my enthusiasm is unflagging.

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Re: [MacRuby-devel] Obj-C translation
by Frisco Del Rosario 03 Apr '09

03 Apr '09

On Thu, Apr 2, 2009 at 1:11 PM , John Shea wrote: > if you look about a quarter of the way down this page ( the > introductory tutorial) > http://www.macruby.org/documentation/tutorial.html > <http://www.macruby.org/documentation/tutorial.html> you will see it > all explained. <http://www.macruby.org/documentation/tutorial.html> I'd rtfm, but comprehended none of it, it seems. > <http://www.macruby.org/documentation/tutorial.html> In this case: > <http://www.macruby.org/documentation/tutorial.html> - > (BOOL)windowShouldZoom:(NSWindow *)window > toFrame:(NSRect)proposedFrame > <http://www.macruby.org/documentation/tutorial.html> could become: > <http://www.macruby.org/documentation/tutorial.html> > windowShouldZoom(window, toFrame:proposedFrame) > <http://www.macruby.org/documentation/tutorial.html> Got it! Now moving on to this delegate method — in Cocoa Programming Quick Start, Daniel H. Steinberg gives: - (void)webView:(WebView *)sender didReceiveTitle:(NSString *)title forFrame:(WebFrame *)frame { [[sender window] setTitle:title]; } Which I translated as: def didReceiveTitle(title, forFrame:frame) sender.window(setTitle:title) end That should be correct. But what might be the cause for the delegate method never to be triggered? (That is, the window title never changes.) Thank y'all for your help, and for putting up with an old dog trying to learn new stuff.

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NSControl's partial mapping to HotCocoa
by Frisco Del Rosario 03 Apr '09

03 Apr '09

NSButton inherits from NSControl, which — according to http://www.macruby.org/trac/wiki/HotCocoaStatus — is partially mapped to HotCocoa. Is this incomplete mapping the reason NSButton.respond_to?("setEnabled") == false ?

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Obj-C translation
by Frisco Del Rosario 02 Apr '09

02 Apr '09

What's the MacRuby style for this Obj-C ? - (BOOL)windowShouldZoom:(NSWindow *)window toFrame:(NSRect)proposedFrame From http://developer.apple.com/documentation/Cocoa/Reference/ApplicationKit/Cla…: How can a method be named Blah(arg) space blah(arg)?

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Re: [MacRuby-devel] HotCocoa table_view and the doubleAction
by Dave Baldwin 02 Apr '09

02 Apr '09

Quoting John Shea <johnmacshea(a)gmail.com>: > Hi Dave, > > I am actually wrestling with a similar problem. > > I believe I have solved your problem, maybe you can solve mine ;-) ?? > > in the start method I placed: > @my_table_view.setTarget(self) > @my_table_view.setDoubleAction(:double) > > > and then later on a method: > > def double > NSLog ("double") > end > This worked so thanks, but did have the side effect of making the single click action fail. I think this was because I was setting it up using @tableView.on_action do NSLog "got table action via on_action..." end which seems to add the action method to a proxy object and behind the scenes sets target to the proxy object. Easily fixed by @tableView.target = self @tableView.doubleAction = 'double:' @tableView.action = 'single:' and def double (sender) end def single (sender) end In actual fact I was also using the tableViewSelectionDidChange delegate so was finding out about single clicks twice. > > My issue is also delegating table updates to certain methods. > > I noticed that tableview.setDelegate(self) did not do anything - and > then I assumed that the TableDataSource is actually handling the > delegate - confirmed when I changed the numberOfRowsInTableView > method to return the value 1. I haven't had any problems using delegate methods. For example I do: @tableView.delegate = self and define a delegate method: def tableView (table, shouldEditTableColumn: c, row: r) false end as you get told which tableView is 'calling' you you can use this to do table specific actions if one object is acting as a delegate for two tableViews. More commonly the tableView is looked after by its own instance object so the setting of the delegate of the tableView will be unique for the different tableViews. If you don't get the delegate's method signature correct they it will look like the delegate isn't working. > > But then I assume that I am not supposed to add my own tableView(tv, > setObjectValue:anObject, forTableColumn:col, row:row) method to the > HotCocoa TableDataSource file? I don't believe so. > > What happens if I have two tables in the one application with > different delegated behaviour? Use two objects - one per tableView - to customise the delegated behaviour you want, or use the table argument to the delegate method so choose the behaviour. > > Am I supposed to get funky and add the different versions of the > tableView methods to the data instance itself? > Is there a way to override the delegate dispatch to actually go a > local class? I think this is what the setDelegate method does. Hope this helps, Dave. > > or do I setActions like in the double clicked example above? > > Cheers and thanks, > J > >

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