rubycocoa-talk — talking about RubyCocoa

[Rubycocoa-talk] URL types, getUrl_withReplyEvent, registerMyApp, and init()

[elliottcable <me...@el...>]

I have very simple requirements: I need a tiny, absolutely simple tool  
to pass handling of URLs, OS X style, to a more complicated, actually- 
ruby (not RubyCocoa, GUI-less) tool. I've started my first RubyCocoa  
app as a non-document-based, Core Data RubyCocoa application in Xcode,  
and I've played around with some RubyCocoa tutorials on the net, so  
I've got the basics down.

The only thing I can't figure out is *where* to place the following  
snippets that I've put together from various Ruby and/or ObjC code  
relating to this topic:

http://gist.github.com/9058

I've got the Info.plist code worked out, so after a build in Xcode, OS  
X will open MyApp.app when I type myapp:test into Safari's location bar.

I've also placed the `registerMyApp` snippet into rb_main.rb, and a  
call to that `registerMyApp` method in the  `rb_main_init` method in  
said file; I've placed the `getUrl_withReplyEvent` method in my  
AppDelegate class in myappAppDelegate.rb

However, my hook code (the meat of `getUrl_withReplyEvent`, which  
should `say` the URL out loud [the only way I know of to get  
information out of the app, because printing it won't show anywhere]  
and allow me to work with the URL at some point in the future) never  
seems to get run. Also, I have no idea if the `registerMyApp` code was  
successfully executed or not - I don't get any errors as it is  
currently structured.

First of all, does anybody have any prior experience with working with  
URLs like this in a RubyCocoa app; second, the (ObjC focused)  
documentation for this stuff says to place this code within the ObjC  
`init()` function - where's the equivalent of that for a RubyCocoa app?

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Re: [Rubycocoa-talk] Intermittent dump - problems in mouseDown()/NSNotificationCenter postNotificationName:object:userInfo:]

[Brian M. <ma...@ex...>]

On Aug 27, 2008, at 9:37 AM, Allison Newman wrote:
> How are you populating @preferences.translator_display_names[]?


Like this:

     archived =  
NSUserDefaults.standardUserDefaults.objectForKey(:translators)
     @translator_preferences = archived.collect do | nsdatum |
       NSKeyedUnarchiver.unarchiveObjectWithData(nsdatum)
     end
     @translator_preferences.collect { | t | t.display_name }

-----
Brian Marick, independent consultant
Mostly on agile methods with a testing slant
www.exampler.com, www.exampler.com/blog, www.twitter.com/marick

Re: [Rubycocoa-talk] Intermittent dump - problems in mouseDown()/NSNotificationCenter postNotificationName:object:userInfo:]

[Brian M. <ma...@ex...>]

On Aug 27, 2008, at 12:04 AM, Allison Newman wrote:
> In my (admittedly limited) experience with RubyCocoa, the bug most  
> likely to make the internals of Cocoa blow up is when you hand Cocoa  
> a Ruby Object that has been generated by a factory class.  My  
> personal favourite of these is objects generated by YAML, but I'm  
> sure there are others.
>
> Is your problem always associated with NSNotificationCenter?  How  
> are you generating the observer objects?  Can you post that code?


The interesting thing here is that I'm not causing the notification to  
be sent. It's happening on a mouse-down. None of my code observes  
those notifications. Here's the code that manages the combo boxes.  
It's in a controller (loaded from main nib). It talks to a class that  
loads-and-decodes user preferences. (Not using  
NSUserDefaultsController yet.)

     def awakeFromNib
       @comboBox.usesDataSource = true
       @comboBox.dataSource = self
       @comboBox.stringValue =  
@preferences.display_name_of_favorite_translator
       super
     end

     # In role as data source

     def numberOfItemsInComboBox(ignored)
       @preferences.translator_display_names.size
     end

     def comboBox_objectValueForItemAtIndex(ignored, index)
       @preferences.translator_display_names[index]
     end

     def comboBox_indexOfItemWithStringValue(ignored, string)
       @preferences.translator_display_names.index(string) || NSNotFound
     end

-----
Brian Marick, independent consultant
Mostly on agile methods with a testing slant
www.exampler.com, www.exampler.com/blog, www.twitter.com/marick

Re: [Rubycocoa-talk] Intermittent dump - problems in mouseDown()/NSNotificationCenter postNotificationName:object:userInfo:]

[Allison N. <dem...@ma...>]

Hi Brian,
In my (admittedly limited) experience with RubyCocoa, the bug most  
likely to make the internals of Cocoa blow up is when you hand Cocoa a  
Ruby Object that has been generated by a factory class.  My personal  
favourite of these is objects generated by YAML, but I'm sure there  
are others.

Is your problem always associated with NSNotificationCenter?  How are  
you generating the observer objects?  Can you post that code?

Hope that helps,

Alli

Le 27 août 08 à 00:55, Brian Marick a écrit :

> I occasionally get the following dump when using my app. It happens
> when I repeatedly and alternately click a combo box and a button, but
> not after a predictable number of clicks. It seems to always happen in
> a combo box click. Ideas? Could this have anything to do with  
> RubyCocoa?
>
> #0  0x9566beba in _objc_error ()
> #1  0x9566bef0 in __objc_error ()
> #2  0x9566a8f7 in _freedHandler ()
> #3  0x92c9b54a in _nsnote_callback ()
> #4  0x94692aba in __CFXNotificationPost ()
> #5  0x94692d93 in _CFXNotificationPostNotification ()
> #6  0x92c987b0 in -[NSNotificationCenter
> postNotificationName:object:userInfo:] ()
> #7  0x96b661dd in .LCFI1 ()
> #8  0x96b66771 in ffi_call ()
> #9  0x00042a6c in rb_ffi_dispatch ()
> #10 0x0002db65 in objcptr_s_new_with_cptr ()
> #11 0x0002ee44 in init_mdl_OCObjWrapper ()
> #12 0x96b66424 in ffi_closure_SYSV ()
> #13 0x000dc1d8 in rb_eval_string_wrap ()
> #14 0x000dcdec in rb_eval_string_wrap ()
> #15 0x000da06d in rb_eval_string_wrap ()
> #16 0x000dc9de in rb_eval_string_wrap ()
> #17 0x000dcdec in rb_eval_string_wrap ()
> #18 0x000da06d in rb_eval_string_wrap ()
> #19 0x000dc9de in rb_eval_string_wrap ()
> #20 0x000dcdec in rb_eval_string_wrap ()
> #21 0x000da06d in rb_eval_string_wrap ()
> #22 0x000e01fc in rb_thread_trap_eval ()
> #23 0x000e086a in rb_thread_trap_eval ()
> #24 0x000dc43a in rb_eval_string_wrap ()
> #25 0x000dcdec in rb_eval_string_wrap ()
> #26 0x000e6347 in rb_apply ()
> #27 0x00035371 in install_ovmix_hooks ()
> #28 0x000d1fe5 in rb_protect ()
> #29 0x00036449 in rbobj_call_ruby ()
> #30 0x00036ad9 in rbobj_call_ruby ()
> #31 0x00035ce6 in install_ovmix_hooks ()
> #32 0x0003414f in ovmix_register_ruby_method ()
> #33 0x947309aa in ___forwarding___ ()
> #34 0x94730a12 in __forwarding_prep_0___ ()
> #35 0x93f15c23 in -[NSApplication sendAction:to:from:] ()
> #36 0x93f15b60 in -[NSControl sendAction:to:] ()
> #37 0x93f159e6 in -[NSCell _sendActionFrom:] ()
> #38 0x93f1503f in -[NSCell trackMouse:inRect:ofView:untilMouseUp:] ()
> #39 0x93f14892 in -[NSButtonCell
> trackMouse:inRect:ofView:untilMouseUp:] ()
> #40 0x93f1414c in -[NSControl mouseDown:] ()
> #41 0x93f1288b in -[NSWindow sendEvent:] ()
> #42 0x93edf431 in -[NSApplication sendEvent:] ()
> #43 0x93e3ce27 in -[NSApplication run] ()
> #44 0x93e0a030 in NSApplicationMain ()
> #45 0x96b661dd in .LCFI1 ()
> #46 0x96b66771 in ffi_call ()
> #47 0x00042a6c in rb_ffi_dispatch ()
> #48 0x0003b2ed in find_bs_boxed_by_encoding ()
> #49 0x000d2c47 in rb_with_disable_interrupt ()
> #50 0x000dc1d8 in rb_eval_string_wrap ()
> #51 0x000dcdec in rb_eval_string_wrap ()
> #52 0x000da06d in rb_eval_string_wrap ()
> #53 0x000e8f62 in rb_load_protect ()
> #54 0x000e8f93 in ruby_exec ()
> #55 0x000e8fbf in ruby_run ()
> #56 0x000386ac in RBApplicationMain ()
> #57 0x00001fed in main (argc=1, argv=0xbfffe3ac) at /Users/marick/
> writing/rubycocoa-book/Book/code/fenestra/preferred-list/main.m:14
>
> -----
> Brian Marick, independent consultant
> Mostly on agile methods with a testing slant
> www.exampler.com, www.exampler.com/blog, www.twitter.com/marick
>
>
> -------------------------------------------------------------------------
> This SF.Net email is sponsored by the Moblin Your Move Developer's  
> challenge
> Build the coolest Linux based applications with Moblin SDK & win  
> great prizes
> Grand prize is a trip for two to an Open Source event anywhere in  
> the world
> http://moblin-contest.org/redirect.php?banner_id=100&url=/
> _______________________________________________
> Rubycocoa-talk mailing list
> Rub...@li...
> https://lists.sourceforge.net/lists/listinfo/rubycocoa-talk

Re: [Rubycocoa-talk] Intermittent dump - problems in mouseDown()/NSNotificationCenter postNotificationName:object:userInfo:]

[Brian M. <ma...@ex...>]

Note: the problem isn't always in _freedHandler(). Sometimes it's in  
objc_msgSend:

(gdb) bt
#0  0x9567b6e8 in objc_msgSend ()
#1  0x92c9b54a in _nsnote_callback ()
#2  0x94692aba in __CFXNotificationPost ()
#3  0x94692d93 in _CFXNotificationPostNotification ()
#4  0x92c987b0 in -[NSNotificationCenter  
postNotificationName:object:userInfo:] ()


-----
Brian Marick, independent consultant
Mostly on agile methods with a testing slant
www.exampler.com, www.exampler.com/blog, www.twitter.com/marick

[Rubycocoa-talk] Intermittent dump - problems in mouseDown()/NSNotificationCenter postNotificationName:object:userInfo:]

[Brian M. <ma...@ex...>]

I occasionally get the following dump when using my app. It happens  
when I repeatedly and alternately click a combo box and a button, but  
not after a predictable number of clicks. It seems to always happen in  
a combo box click. Ideas? Could this have anything to do with RubyCocoa?

#0  0x9566beba in _objc_error ()
#1  0x9566bef0 in __objc_error ()
#2  0x9566a8f7 in _freedHandler ()
#3  0x92c9b54a in _nsnote_callback ()
#4  0x94692aba in __CFXNotificationPost ()
#5  0x94692d93 in _CFXNotificationPostNotification ()
#6  0x92c987b0 in -[NSNotificationCenter  
postNotificationName:object:userInfo:] ()
#7  0x96b661dd in .LCFI1 ()
#8  0x96b66771 in ffi_call ()
#9  0x00042a6c in rb_ffi_dispatch ()
#10 0x0002db65 in objcptr_s_new_with_cptr ()
#11 0x0002ee44 in init_mdl_OCObjWrapper ()
#12 0x96b66424 in ffi_closure_SYSV ()
#13 0x000dc1d8 in rb_eval_string_wrap ()
#14 0x000dcdec in rb_eval_string_wrap ()
#15 0x000da06d in rb_eval_string_wrap ()
#16 0x000dc9de in rb_eval_string_wrap ()
#17 0x000dcdec in rb_eval_string_wrap ()
#18 0x000da06d in rb_eval_string_wrap ()
#19 0x000dc9de in rb_eval_string_wrap ()
#20 0x000dcdec in rb_eval_string_wrap ()
#21 0x000da06d in rb_eval_string_wrap ()
#22 0x000e01fc in rb_thread_trap_eval ()
#23 0x000e086a in rb_thread_trap_eval ()
#24 0x000dc43a in rb_eval_string_wrap ()
#25 0x000dcdec in rb_eval_string_wrap ()
#26 0x000e6347 in rb_apply ()
#27 0x00035371 in install_ovmix_hooks ()
#28 0x000d1fe5 in rb_protect ()
#29 0x00036449 in rbobj_call_ruby ()
#30 0x00036ad9 in rbobj_call_ruby ()
#31 0x00035ce6 in install_ovmix_hooks ()
#32 0x0003414f in ovmix_register_ruby_method ()
#33 0x947309aa in ___forwarding___ ()
#34 0x94730a12 in __forwarding_prep_0___ ()
#35 0x93f15c23 in -[NSApplication sendAction:to:from:] ()
#36 0x93f15b60 in -[NSControl sendAction:to:] ()
#37 0x93f159e6 in -[NSCell _sendActionFrom:] ()
#38 0x93f1503f in -[NSCell trackMouse:inRect:ofView:untilMouseUp:] ()
#39 0x93f14892 in -[NSButtonCell  
trackMouse:inRect:ofView:untilMouseUp:] ()
#40 0x93f1414c in -[NSControl mouseDown:] ()
#41 0x93f1288b in -[NSWindow sendEvent:] ()
#42 0x93edf431 in -[NSApplication sendEvent:] ()
#43 0x93e3ce27 in -[NSApplication run] ()
#44 0x93e0a030 in NSApplicationMain ()
#45 0x96b661dd in .LCFI1 ()
#46 0x96b66771 in ffi_call ()
#47 0x00042a6c in rb_ffi_dispatch ()
#48 0x0003b2ed in find_bs_boxed_by_encoding ()
#49 0x000d2c47 in rb_with_disable_interrupt ()
#50 0x000dc1d8 in rb_eval_string_wrap ()
#51 0x000dcdec in rb_eval_string_wrap ()
#52 0x000da06d in rb_eval_string_wrap ()
#53 0x000e8f62 in rb_load_protect ()
#54 0x000e8f93 in ruby_exec ()
#55 0x000e8fbf in ruby_run ()
#56 0x000386ac in RBApplicationMain ()
#57 0x00001fed in main (argc=1, argv=0xbfffe3ac) at /Users/marick/ 
writing/rubycocoa-book/Book/code/fenestra/preferred-list/main.m:14

-----
Brian Marick, independent consultant
Mostly on agile methods with a testing slant
www.exampler.com, www.exampler.com/blog, www.twitter.com/marick

[Rubycocoa-talk] Why I love RubyCocoa

[Allison N. <dem...@ma...>]

I've just finished writing a little snippet of code that made me remember why I love programming in Ruby so much, and how great it is that RubyCocoa lets me do so whilst accessing all the glory that is Cocoa :-)  So I thought I'd share :-)

It's an application of open classes in Ruby.  Basically I wanted a method that would give me an NSImage of any NSView that I wanted.  So here it is:

require 'osx/cocoa'
include OSX

class NSView < NSResponder

    def captureImage
        bit_image_rep = self.bitImageRepForCachingDisplayInRect(self.visibleRect)
        self.cacheDisplayInRect_toBitmapImageRep(self.visibleRect, bit_image_rep)
        image = NSImage.alloc.initWithSize(bit_image_rep.size)
        image.addRepresentation(bit_image_rep)
        image
    end

end


And to use it:

frame = NSRect.new(0, 0, 100, 100)
some_view = NSButton.alloc.initWithFrame(frame)
image = some_view.captureImage

Although why you'd want to capture the image of a button is beyond me...

Actually, being a bit of a Cocoa newbie, is there a simpler way of doing this?

Alli

[Rubycocoa-talk] [ANN]Growl Notifier 1.0.1

[Satoshi N. <ps...@li...>]

Growl Notifier 1.0.1 has been released.

  http://rubyforge.org/projects/growlnotifier/
  http://growlnotifier.rubyforge.org/

Growl Notifier allows your application to post Growl notifications.
It can then receive clicked and timed out notifications from Growl.
Or you can give it a block, which will then be used as a clicked callback.

It is an extraction and clean up of the Growl code from LimeChat.
The option to pass procs is extracted from WebApp.

LimeChat:
  http://github.com/psychs/limechat/tree/master

WebApp:
  http://github.com/alloy/webapp-app/tree/master

== Installation

gem install growlnotifier

== Requirements

* Mac OS X 10.4 or 10.5
* Ruby 1.8
* RubyCocoa 0.13.1

== Example

require 'rubygems'
require 'growl'

class GrowlController < OSX::NSObject
  HELLO_TYPE = 'Hello message received'

  def init
    if super_init
      @g = Growl::Notifier.sharedInstance
      @g.delegate = self
      @g.register('GrowlSample', [HELLO_TYPE])
      @g.notify(HELLO_TYPE, 'Sticky', 'Hello world',
                :sticky => true, :click_context => Time.now.to_s )
      @g.notify(HELLO_TYPE, 'Timed out', 'Hello world',
                :click_context => Time.now.to_s )
      @count = 2
      self
    end
  end

  def growlNotifierClicked_context(sender, context)
    puts "Clicked: #{context}"
    checkCount
  end

  def growlNotifierTimedOut_context(sender, context)
    puts "Timed out: #{context}"
    checkCount
  end

  def checkCount
    @count -= 1
    OSX::NSApp.terminate(nil) if @count == 0
  end
end

g = GrowlController.alloc.init
OSX::NSApp.run

-- 
Satoshi Nakagawa

[Rubycocoa-talk] Error

[Craig W. <cwi...@ma...>]

A friend of mine wrote a Python script to access the DictionaryServices
framework. It was a little slow so I wrote one in Ruby and Obj-C to
compare. With Ruby I am getting the error as shown below. Any  
suggestions
as to what I am missing here?

Toda, (thanks)

Craig


Obj-C code that works:
NSString *searchword = [args objectAtIndex:1];
		CFRange range = CFRangeMake(0, [searchword length]);
		CFStringRef def = DCSCopyTextDefinition(NULL, searchword, range);
		
Python code that works:
searchword = sys.argv[1].decode('utf-8')
wordrange = (0, len(searchword))
dictresult = DCSCopyTextDefinition(None, searchword, wordrange)

Ruby code:
word = 'History'								# also tried as NSString
word_len = NSRange.new(0, word.length)			# also tried as CFRange
puts DCSCopyTextDefinition(nil, word, word_len)

The error:
OSX::OCDataConvException: Cannot convert the argument #2 as '{?=ii}'  
to Objective-C

Frameworks:
require 'osx/cocoa'; include OSX
require_framework '/System/Library/Frameworks/CoreServices.framework/ 
Frameworks/DictionaryServices.framework'

DictionaryServices would not load without the full path.

Re: [Rubycocoa-talk] problems when "require"-ing libraries or gems

[Stephyn B. <ste...@co...>]

Greg,

I gave your suggestion a try.

require 'rubygems'
require 'osx/cocoa'
require 'rexml/document'

Interestingly, this delayed the crash until I actually called  
exportModel whereas before the application crashed instantly.

I tried using rexml via

require 'rexml/document'

in a toy application I had sitting around and everything worked out  
just fine. Because I am had similar issues with builder (although at  
seemingly random places), this leads me to believe that there is  
something wrong with this project....but just what that could be  
completely escapes me. The only clue I have is the backtrace--which  
isn't very useful to me.

Can a project file get corrupted? Has anyone observed a similar  
behavior?

Cheers,
Steve

On Aug 19, 2008, at 7:35 AM, rub...@li... 
  wrote:

> Message: 1
> Date: Mon, 18 Aug 2008 17:11:40 -0700
> From: Gregory Clarke <gr...@in...>
> Subject: Re: [Rubycocoa-talk] problems when "require"-ing libraries or
> 	gems
> To: rub...@li...
> Message-ID:
> 	<6D6...@in...>
> Content-Type: text/plain; charset="us-ascii"
>
> Hi Steve,
>
> You might need a require 'rubygems' before the require 'rexml/
> document'. Certainly that's true for Builder. I've used REXML in my
> latest RubyCocoa projects, along with other gems, and require
> 'rubygems' is my first line.
>
> Hope this helps,
> Greg

Re: [Rubycocoa-talk] Using Cocoa structs in RubyCocoa

[Eloy D. <elo...@gm...>]

I always explicitly require the bridgesupport files in this way.
Actually this is most of the times the way I load a framework, so I  
don't add it in the xcode project unless it's really needed.

So afaik if you load a framework by adding it to the linked frameworks  
in your xcode project, you still need to tell the bridge
to load the bridgesupport file.

Laurent, any input on this matter?

Eloy

On Aug 19, 2008, at 2:32 PM, Allison Newman wrote:

> Yup, everything worked fine after I called require_framework 'QTKit'
>
> Actually, do you know why we have to do this manually?  I would have  
> thought that all of the frameworks that are loaded automatically  
> should also load the .bridgesupport files.  Am I actually looking at  
> a bug do you think?
>
> Alli

Re: [Rubycocoa-talk] Using Cocoa structs in RubyCocoa

[Allison N. <dem...@ma...>]

Oh, never mind, I just added a:

require_framework 'QTKit'

to the top of my file, and it works fine now...  Thanks for the help Eloy. 

On Tuesday, August 19, 2008, at 01:35PM, "Eloy Duran" <elo...@gm...> wrote:
>Hi Alli,
>
>Normally you'd cerate a bridge support file like so:
>
>$ gen_bridge_metadata -f QTKit > QTKit.bridgesupport
>
>Where -f stands for a framework name in one of the default load paths.
>However, trying to wrap QTKit results in the following error:
>"undefined local variable or method `trans' for <UNDEFINED> ... </ 
> >:REXML::Document"
>
>So I guess you'd need to debug this to get it to completely wrap the  
>framework.
>
>- Eloy
>
>On Aug 19, 2008, at 12:56 PM, Allison Newman wrote:
>
>> Hi everyone,
>>
>> I'm currently having trouble with writing some code to generate a  
>> Quicktime movie file.  When I wish to add an image to the file, I  
>> have to create a QTTime struct.
>>
>> When I do this for most of the standard Cocoa structs, such as  
>> NSRect, NSPoint etc, I can simply do:
>>
>> point = NSPoint.new(1, 2)
>>
>> This works.  However if I try the same idea with a QTTime:
>>
>> qt_time = QTTime.new(1, 10, 0)
>>
>> RubyCocoa dies, claiming it doesn't know the constant QTTime.
>>
>> I have tried looking inside the RubyCocoa framework to see how the  
>> magic is done for the NSxxxx structs, but I found the following  
>> comment in oc_types.rb:
>>
>> # This module adds syntax-sugar APIs on top of the Cocoa structures.
>> # This is mostly to preserve backwards compatibility with previous  
>> versions
>> # of RubyCocoa where the C structures support was hardcoded in the  
>> bridge.
>> # Now structures are automatically handled via the metadata  
>> mechanism, but
>> # the API is not compatible with what we used to have.
>>
>> If I understand correctly, this means that QTKit has not had  
>> metadata generated for it to handle things such as structs etc.  Can  
>> anyone confirm that this is the case, and if so, point me in the  
>> direction of some documentation explaining how it is done.  With a  
>> bit of luck, I'll even be able to add the QTKit metadata back into  
>> the RubyCocoa project.
>>
>> Thanks for any help.
>>
>> Alli
>>
>> -------------------------------------------------------------------------
>> This SF.Net email is sponsored by the Moblin Your Move Developer's  
>> challenge
>> Build the coolest Linux based applications with Moblin SDK & win  
>> great prizes
>> Grand prize is a trip for two to an Open Source event anywhere in  
>> the world
>> http://moblin-contest.org/redirect.php?banner_id=100&url=/
>> _______________________________________________
>> Rubycocoa-talk mailing list
>> Rub...@li...
>> https://lists.sourceforge.net/lists/listinfo/rubycocoa-talk
>
>
>-------------------------------------------------------------------------
>This SF.Net email is sponsored by the Moblin Your Move Developer's challenge
>Build the coolest Linux based applications with Moblin SDK & win great prizes
>Grand prize is a trip for two to an Open Source event anywhere in the world
>http://moblin-contest.org/redirect.php?banner_id=100&url=/
>_______________________________________________
>Rubycocoa-talk mailing list
>Rub...@li...
>https://lists.sourceforge.net/lists/listinfo/rubycocoa-talk
>
>

Re: [Rubycocoa-talk] Using Cocoa structs in RubyCocoa

[Eloy D. <e....@su...>]

Hi Alli,

No problem, thanks!
I should have known though,
but solving that issue was beyond the scope of giving you the answer :)

So did it wrap everything correctly?
If so, you might want to file a radar ticket with apple
to get the bridgesupport file added in an update.

- Eloy

On Aug 19, 2008, at 1:59 PM, Allison Newman wrote:

> Eloy,
>
> Apparently you need to patch your rexml/document.rb.  See here:
> http://rubycocoa.sourceforge.net/GettingStarted
>
> (Sorry to send you to the newbie site, but it describes your result  
> perfectly - gen_bridge_metadata on QTKit works on my system.)
>
> Alli
>
> On Tuesday, August 19, 2008, at 01:35PM, "Eloy Duran" <elo...@gm... 
> > wrote:
>> Hi Alli,
>>
>> Normally you'd cerate a bridge support file like so:
>>
>> $ gen_bridge_metadata -f QTKit > QTKit.bridgesupport
>>
>> Where -f stands for a framework name in one of the default load  
>> paths.
>> However, trying to wrap QTKit results in the following error:
>> "undefined local variable or method `trans' for <UNDEFINED> ... </
>>> :REXML::Document"
>>
>> So I guess you'd need to debug this to get it to completely wrap the
>> framework.
>>
>> - Eloy
>>
>> On Aug 19, 2008, at 12:56 PM, Allison Newman wrote:
>>
>>> Hi everyone,
>>>
>>> I'm currently having trouble with writing some code to generate a
>>> Quicktime movie file.  When I wish to add an image to the file, I
>>> have to create a QTTime struct.
>>>
>>> When I do this for most of the standard Cocoa structs, such as
>>> NSRect, NSPoint etc, I can simply do:
>>>
>>> point = NSPoint.new(1, 2)
>>>
>>> This works.  However if I try the same idea with a QTTime:
>>>
>>> qt_time = QTTime.new(1, 10, 0)
>>>
>>> RubyCocoa dies, claiming it doesn't know the constant QTTime.
>>>
>>> I have tried looking inside the RubyCocoa framework to see how the
>>> magic is done for the NSxxxx structs, but I found the following
>>> comment in oc_types.rb:
>>>
>>> # This module adds syntax-sugar APIs on top of the Cocoa structures.
>>> # This is mostly to preserve backwards compatibility with previous
>>> versions
>>> # of RubyCocoa where the C structures support was hardcoded in the
>>> bridge.
>>> # Now structures are automatically handled via the metadata
>>> mechanism, but
>>> # the API is not compatible with what we used to have.
>>>
>>> If I understand correctly, this means that QTKit has not had
>>> metadata generated for it to handle things such as structs etc.  Can
>>> anyone confirm that this is the case, and if so, point me in the
>>> direction of some documentation explaining how it is done.  With a
>>> bit of luck, I'll even be able to add the QTKit metadata back into
>>> the RubyCocoa project.
>>>
>>> Thanks for any help.
>>>
>>> Alli
>>>
>>> -------------------------------------------------------------------------
>>> This SF.Net email is sponsored by the Moblin Your Move Developer's
>>> challenge
>>> Build the coolest Linux based applications with Moblin SDK & win
>>> great prizes
>>> Grand prize is a trip for two to an Open Source event anywhere in
>>> the world
>>> http://moblin-contest.org/redirect.php?banner_id=100&url=/
>>> _______________________________________________
>>> Rubycocoa-talk mailing list
>>> Rub...@li...
>>> https://lists.sourceforge.net/lists/listinfo/rubycocoa-talk
>>
>>
>> -------------------------------------------------------------------------
>> This SF.Net email is sponsored by the Moblin Your Move Developer's  
>> challenge
>> Build the coolest Linux based applications with Moblin SDK & win  
>> great prizes
>> Grand prize is a trip for two to an Open Source event anywhere in  
>> the world
>> http://moblin-contest.org/redirect.php?banner_id=100&url=/
>> _______________________________________________
>> Rubycocoa-talk mailing list
>> Rub...@li...
>> https://lists.sourceforge.net/lists/listinfo/rubycocoa-talk
>>
>>
>
> -------------------------------------------------------------------------
> This SF.Net email is sponsored by the Moblin Your Move Developer's  
> challenge
> Build the coolest Linux based applications with Moblin SDK & win  
> great prizes
> Grand prize is a trip for two to an Open Source event anywhere in  
> the world
> http://moblin-contest.org/redirect.php?banner_id=100&url=/
> _______________________________________________
> Rubycocoa-talk mailing list
> Rub...@li...
> https://lists.sourceforge.net/lists/listinfo/rubycocoa-talk

Re: [Rubycocoa-talk] Using Cocoa structs in RubyCocoa

[Allison N. <dem...@ma...>]

 Eloy,

Apparently you need to patch your rexml/document.rb.  See here:
http://rubycocoa.sourceforge.net/GettingStarted

(Sorry to send you to the newbie site, but it describes your result perfectly - gen_bridge_metadata on QTKit works on my system.)

Alli

On Tuesday, August 19, 2008, at 01:35PM, "Eloy Duran" <elo...@gm...> wrote:
>Hi Alli,
>
>Normally you'd cerate a bridge support file like so:
>
>$ gen_bridge_metadata -f QTKit > QTKit.bridgesupport
>
>Where -f stands for a framework name in one of the default load paths.
>However, trying to wrap QTKit results in the following error:
>"undefined local variable or method `trans' for <UNDEFINED> ... </ 
> >:REXML::Document"
>
>So I guess you'd need to debug this to get it to completely wrap the  
>framework.
>
>- Eloy
>
>On Aug 19, 2008, at 12:56 PM, Allison Newman wrote:
>
>> Hi everyone,
>>
>> I'm currently having trouble with writing some code to generate a  
>> Quicktime movie file.  When I wish to add an image to the file, I  
>> have to create a QTTime struct.
>>
>> When I do this for most of the standard Cocoa structs, such as  
>> NSRect, NSPoint etc, I can simply do:
>>
>> point = NSPoint.new(1, 2)
>>
>> This works.  However if I try the same idea with a QTTime:
>>
>> qt_time = QTTime.new(1, 10, 0)
>>
>> RubyCocoa dies, claiming it doesn't know the constant QTTime.
>>
>> I have tried looking inside the RubyCocoa framework to see how the  
>> magic is done for the NSxxxx structs, but I found the following  
>> comment in oc_types.rb:
>>
>> # This module adds syntax-sugar APIs on top of the Cocoa structures.
>> # This is mostly to preserve backwards compatibility with previous  
>> versions
>> # of RubyCocoa where the C structures support was hardcoded in the  
>> bridge.
>> # Now structures are automatically handled via the metadata  
>> mechanism, but
>> # the API is not compatible with what we used to have.
>>
>> If I understand correctly, this means that QTKit has not had  
>> metadata generated for it to handle things such as structs etc.  Can  
>> anyone confirm that this is the case, and if so, point me in the  
>> direction of some documentation explaining how it is done.  With a  
>> bit of luck, I'll even be able to add the QTKit metadata back into  
>> the RubyCocoa project.
>>
>> Thanks for any help.
>>
>> Alli
>>
>> -------------------------------------------------------------------------
>> This SF.Net email is sponsored by the Moblin Your Move Developer's  
>> challenge
>> Build the coolest Linux based applications with Moblin SDK & win  
>> great prizes
>> Grand prize is a trip for two to an Open Source event anywhere in  
>> the world
>> http://moblin-contest.org/redirect.php?banner_id=100&url=/
>> _______________________________________________
>> Rubycocoa-talk mailing list
>> Rub...@li...
>> https://lists.sourceforge.net/lists/listinfo/rubycocoa-talk
>
>
>-------------------------------------------------------------------------
>This SF.Net email is sponsored by the Moblin Your Move Developer's challenge
>Build the coolest Linux based applications with Moblin SDK & win great prizes
>Grand prize is a trip for two to an Open Source event anywhere in the world
>http://moblin-contest.org/redirect.php?banner_id=100&url=/
>_______________________________________________
>Rubycocoa-talk mailing list
>Rub...@li...
>https://lists.sourceforge.net/lists/listinfo/rubycocoa-talk
>
>

Re: [Rubycocoa-talk] Using Cocoa structs in RubyCocoa

[Eloy D. <elo...@gm...>]

Hi Alli,

Normally you'd cerate a bridge support file like so:

$ gen_bridge_metadata -f QTKit > QTKit.bridgesupport

Where -f stands for a framework name in one of the default load paths.
However, trying to wrap QTKit results in the following error:
"undefined local variable or method `trans' for <UNDEFINED> ... </ 
 >:REXML::Document"

So I guess you'd need to debug this to get it to completely wrap the  
framework.

- Eloy

On Aug 19, 2008, at 12:56 PM, Allison Newman wrote:

> Hi everyone,
>
> I'm currently having trouble with writing some code to generate a  
> Quicktime movie file.  When I wish to add an image to the file, I  
> have to create a QTTime struct.
>
> When I do this for most of the standard Cocoa structs, such as  
> NSRect, NSPoint etc, I can simply do:
>
> point = NSPoint.new(1, 2)
>
> This works.  However if I try the same idea with a QTTime:
>
> qt_time = QTTime.new(1, 10, 0)
>
> RubyCocoa dies, claiming it doesn't know the constant QTTime.
>
> I have tried looking inside the RubyCocoa framework to see how the  
> magic is done for the NSxxxx structs, but I found the following  
> comment in oc_types.rb:
>
> # This module adds syntax-sugar APIs on top of the Cocoa structures.
> # This is mostly to preserve backwards compatibility with previous  
> versions
> # of RubyCocoa where the C structures support was hardcoded in the  
> bridge.
> # Now structures are automatically handled via the metadata  
> mechanism, but
> # the API is not compatible with what we used to have.
>
> If I understand correctly, this means that QTKit has not had  
> metadata generated for it to handle things such as structs etc.  Can  
> anyone confirm that this is the case, and if so, point me in the  
> direction of some documentation explaining how it is done.  With a  
> bit of luck, I'll even be able to add the QTKit metadata back into  
> the RubyCocoa project.
>
> Thanks for any help.
>
> Alli
>
> -------------------------------------------------------------------------
> This SF.Net email is sponsored by the Moblin Your Move Developer's  
> challenge
> Build the coolest Linux based applications with Moblin SDK & win  
> great prizes
> Grand prize is a trip for two to an Open Source event anywhere in  
> the world
> http://moblin-contest.org/redirect.php?banner_id=100&url=/
> _______________________________________________
> Rubycocoa-talk mailing list
> Rub...@li...
> https://lists.sourceforge.net/lists/listinfo/rubycocoa-talk

[Rubycocoa-talk] Using Cocoa structs in RubyCocoa

[Allison N. <dem...@ma...>]

Hi everyone,

I'm currently having trouble with writing some code to generate a Quicktime movie file.  When I wish to add an image to the file, I have to create a QTTime struct.

When I do this for most of the standard Cocoa structs, such as NSRect, NSPoint etc, I can simply do:

point = NSPoint.new(1, 2)

This works.  However if I try the same idea with a QTTime:

qt_time = QTTime.new(1, 10, 0)

RubyCocoa dies, claiming it doesn't know the constant QTTime.

I have tried looking inside the RubyCocoa framework to see how the magic is done for the NSxxxx structs, but I found the following comment in oc_types.rb:

# This module adds syntax-sugar APIs on top of the Cocoa structures.
# This is mostly to preserve backwards compatibility with previous versions
# of RubyCocoa where the C structures support was hardcoded in the bridge.
# Now structures are automatically handled via the metadata mechanism, but 
# the API is not compatible with what we used to have.

If I understand correctly, this means that QTKit has not had metadata generated for it to handle things such as structs etc.  Can anyone confirm that this is the case, and if so, point me in the direction of some documentation explaining how it is done.  With a bit of luck, I'll even be able to add the QTKit metadata back into the RubyCocoa project.

Thanks for any help.

Alli 

Re: [Rubycocoa-talk] problems when "require"-ing libraries or gems

[Gregory C. <gr...@in...>]

Hi Steve,

You might need a require 'rubygems' before the require 'rexml/ 
document'. Certainly that's true for Builder. I've used REXML in my  
latest RubyCocoa projects, along with other gems, and require  
'rubygems' is my first line.

Hope this helps,
Greg


> Dear all,
>
> I'm using RubyCocoa 0.13.2 on OS X 10.5.4
>
> I have a problem that is driving me batty. I was originally trying  
> to use XmlBuilder to write out some XML. However, at seemingly  
> random places, my application would crash while building the XML and  
> jump into the debugger, always at objc_msgSend.
>
> Well, I thought perhaps there might be some strange problem with  
> XmlBuilder so I decided to try using REXML instead. Well now I get  
> the problem immediately. The following code works perfectly from the  
> command line using /usr/bin/ruby which points to /System/Library/ 
> Frameworks/Ruby.framework/Versions/Current/usr/bin/ruby
>
> require 'osx/cocoa'
> require 'rexml/document'
>
> doc = REXML::Document.new
> node = REXML::Element.new( "node")
> doc.add_element node
> puts "#{doc.to_s}"
>
> In fact, there's no particular reason to include 'osx/cocoa' as it  
> stands because I deleted everything down to the simplest terms.  
> Originally, I had objects that knew how to write themselves to XML.
>
> However, if I run the following code as part of an XCode project for  
> a Cocoa application:
>
> require 'osx/cocoa'
> require 'rexml/document'
>
> class AppController < OSX::NSObject
> 	include OSX
>
> 	# big cut of other methods
>
> 	def exportModel
> 		return if @modelAlias.selectedObjects.length < 1
> 		model = @modelAlias.selectedObjects[ 0]
>
> #		panel = NSSavePanel.savePanel
> #		return if panel.runModalForDirectory_file( nil, "model.xml") !=  
> NSFileHandlingPanelOKButton
>
> #		filename = NSString.stringWithString panel.filename
>
> 		doc = REXML::Document.new
> 		node = REXML::Element.new( "node")
> 		doc.add_element node
> 		NSLog( "#{doc.to_s}")
> 	end
> 	ib_action :exportModel
> end
>
> The application barely runs. It starts up but when I attempt to load  
> a model into the application, the application crashes and goes  
> immediately into the debugger (dbg) without any other information  
> about what might have gone wrong. I assume it crashes on openModels  
> (and not exportModel) because it is the first time that  
> AppController is interpreted.
>
> Here are the first 30 lines from the backtrace:
>
> #0  0x946ef6e8 in objc_msgSend ()
> #1  0x0002fab4 in rbobj_to_nsobj ()
> #2  0x0002d327 in objcptr_s_new_with_cptr ()
> #3  0x000dc1d8 in rb_eval_string_wrap ()
> #4  0x000dcdec in rb_eval_string_wrap ()
> #5  0x000da06d in rb_eval_string_wrap ()
> #6  0x000db17c in rb_eval_string_wrap ()
> #7  0x000db1c5 in rb_eval_string_wrap ()
> #8  0x000dc9de in rb_eval_string_wrap ()
> #9  0x000e641e in rb_apply ()
> #10 0x000dc323 in rb_eval_string_wrap ()
> #11 0x000dcdec in rb_eval_string_wrap ()
> #12 0x000dd871 in rb_respond_to ()
> #13 0x000dd95a in rb_funcall ()
> #14 0x00104a55 in rb_inspect ()
> #15 0x00035bca in rbobj_call_ruby ()
> #16 0x00034db6 in install_ovmix_hooks ()
> #17 0x000331ef in ovmix_register_ruby_method ()
> #18 0x9030e9aa in ___forwarding___ ()
> #19 0x9030ea12 in __forwarding_prep_0___ ()
> #20 0x00033319 in ovmix_register_ruby_method ()
> #21 0x9584a69b in _NSGetUsingKeyValueGetter ()
> #22 0x9584a1aa in -[NSObject(NSKeyValueCoding) valueForKey:] ()
> #23 0x95878192 in -[NSArray(NSKeyValueCoding) valueForKey:] ()
> #24 0x95877d2a in -[NSObject(NSKeyValueCoding) valueForKeyPath:] ()
> #25 0x958c3548 in -[NSArray(NSKeyValueCoding) valueForKeyPath:] ()
> #26 0x95877c90 in -[NSObject(NSKeyValueCoding) valueForKeyPath:] ()
> #27 0x95118cd4 in -[NSBinder  
> _valueForKeyPath:ofObject:mode:raisesForNotApplicableKeys:] ()
> #28 0x951188dc in -[NSBinder  
> valueForBinding:resolveMarkersToPlaceholders:] ()
> #29 0x951f2b29 in -[NSSelectionBinder  
> _adjustObject:mode:observedController:observedKeyPath:context:editableState:adjustState 
> :] ()
> #30 0x9514d950 in -[NSValueBinder  
> _observeValueForKeyPath:ofObject:context:] ()
>
> Note that it is not enough to comment out the REXML lines, to make  
> everything run fine. I have to comment out the require 'rexml/ 
> document' line as well...then everything will run fine....but REXML  
> is in the Ruby standard library. I can cd to /System/Library/ 
> Frameworks/Ruby.framework/Versions/Current/usr/lib/ruby/1.8/rexml/  
> and see that document.rb is there.
>
> Any ideas?
>
> Cheers,
> Steve
>
>
>
>
> -------------------------------------------------------------------------
> This SF.Net email is sponsored by the Moblin Your Move Developer's  
> challenge
> Build the coolest Linux based applications with Moblin SDK & win  
> great prizes
> Grand prize is a trip for two to an Open Source event anywhere in  
> the world
> http://moblin-contest.org/redirect.php?banner_id=100&url=/_______________________________________________
> Rubycocoa-talk mailing list
> Rub...@li...
> https://lists.sourceforge.net/lists/listinfo/rubycocoa-talk

[Rubycocoa-talk] problems when "require"-ing libraries or gems

[Stephyn B. <ste...@co...>]

Dear all,

I'm using RubyCocoa 0.13.2 on OS X 10.5.4

I have a problem that is driving me batty. I was originally trying to  
use XmlBuilder to write out some XML. However, at seemingly random  
places, my application would crash while building the XML and jump  
into the debugger, always at objc_msgSend.

Well, I thought perhaps there might be some strange problem with  
XmlBuilder so I decided to try using REXML instead. Well now I get the  
problem immediately. The following code works perfectly from the  
command line using /usr/bin/ruby which points to /System/Library/ 
Frameworks/Ruby.framework/Versions/Current/usr/bin/ruby

require 'osx/cocoa'
require 'rexml/document'

doc = REXML::Document.new
node = REXML::Element.new( "node")
doc.add_element node
puts "#{doc.to_s}"

In fact, there's no particular reason to include 'osx/cocoa' as it  
stands because I deleted everything down to the simplest terms.  
Originally, I had objects that knew how to write themselves to XML.

However, if I run the following code as part of an XCode project for a  
Cocoa application:

require 'osx/cocoa'
require 'rexml/document'

class AppController < OSX::NSObject
	include OSX

	# big cut of other methods

	def exportModel
		return if @modelAlias.selectedObjects.length < 1
		model = @modelAlias.selectedObjects[ 0]

#		panel = NSSavePanel.savePanel
#		return if panel.runModalForDirectory_file( nil, "model.xml") !=  
NSFileHandlingPanelOKButton

#		filename = NSString.stringWithString panel.filename

		doc = REXML::Document.new
		node = REXML::Element.new( "node")
		doc.add_element node
		NSLog( "#{doc.to_s}")
	end
	ib_action :exportModel
end

The application barely runs. It starts up but when I attempt to load a  
model into the application, the application crashes and goes  
immediately into the debugger (dbg) without any other information  
about what might have gone wrong. I assume it crashes on openModels  
(and not exportModel) because it is the first time that AppController  
is interpreted.

Here are the first 30 lines from the backtrace:

#0  0x946ef6e8 in objc_msgSend ()
#1  0x0002fab4 in rbobj_to_nsobj ()
#2  0x0002d327 in objcptr_s_new_with_cptr ()
#3  0x000dc1d8 in rb_eval_string_wrap ()
#4  0x000dcdec in rb_eval_string_wrap ()
#5  0x000da06d in rb_eval_string_wrap ()
#6  0x000db17c in rb_eval_string_wrap ()
#7  0x000db1c5 in rb_eval_string_wrap ()
#8  0x000dc9de in rb_eval_string_wrap ()
#9  0x000e641e in rb_apply ()
#10 0x000dc323 in rb_eval_string_wrap ()
#11 0x000dcdec in rb_eval_string_wrap ()
#12 0x000dd871 in rb_respond_to ()
#13 0x000dd95a in rb_funcall ()
#14 0x00104a55 in rb_inspect ()
#15 0x00035bca in rbobj_call_ruby ()
#16 0x00034db6 in install_ovmix_hooks ()
#17 0x000331ef in ovmix_register_ruby_method ()
#18 0x9030e9aa in ___forwarding___ ()
#19 0x9030ea12 in __forwarding_prep_0___ ()
#20 0x00033319 in ovmix_register_ruby_method ()
#21 0x9584a69b in _NSGetUsingKeyValueGetter ()
#22 0x9584a1aa in -[NSObject(NSKeyValueCoding) valueForKey:] ()
#23 0x95878192 in -[NSArray(NSKeyValueCoding) valueForKey:] ()
#24 0x95877d2a in -[NSObject(NSKeyValueCoding) valueForKeyPath:] ()
#25 0x958c3548 in -[NSArray(NSKeyValueCoding) valueForKeyPath:] ()
#26 0x95877c90 in -[NSObject(NSKeyValueCoding) valueForKeyPath:] ()
#27 0x95118cd4 in -[NSBinder  
_valueForKeyPath:ofObject:mode:raisesForNotApplicableKeys:] ()
#28 0x951188dc in -[NSBinder  
valueForBinding:resolveMarkersToPlaceholders:] ()
#29 0x951f2b29 in -[NSSelectionBinder  
_adjustObject:mode:observedController:observedKeyPath:context:editableState:adjustState 
:] ()
#30 0x9514d950 in -[NSValueBinder  
_observeValueForKeyPath:ofObject:context:] ()

Note that it is not enough to comment out the REXML lines, to make  
everything run fine. I have to comment out the require 'rexml/ 
document' line as well...then everything will run fine....but REXML is  
in the Ruby standard library. I can cd to /System/Library/Frameworks/ 
Ruby.framework/Versions/Current/usr/lib/ruby/1.8/rexml/ and see that  
document.rb is there.

Any ideas?

Cheers,
Steve

Re: [Rubycocoa-talk] Preventing Sleep

[Patrick G. <pge...@wa...>]

> Alternatively, if there isn't such a repository, do people feel that  
> it would be worthwhile to create one?  I'd be happy enough to do the  
> work to get the ball rolling.

YES! if we're talking of a .bridgesupport files repository — you  
should not need to write code to call existing framework functions.  
Your calling UpdateSystemActivity should work provided you have  
a .bridgesupport file exposing it. I've tried gen_bridge_metadata to  
expose the ObjC runtime functions, without success.

I'm working on a JavascriptCore bridge and I've resorted to manually  
exposing these runtime functions ... This sucks. We need to massage  
gen_bridge_metadata into exposing any framework function.

-Patrick

Re: [Rubycocoa-talk] Preventing Sleep

[Allison N. <dem...@ma...>]

OK, that worked like a charm, thanks Marcelo. 

I actually ended up creating a bundle, as I figure that this will probably be something of fairly general use, at least for my own apps.  However, I wanted to ask the list if there isn't already a bundle that the community is using as a one-stop repository for storing an interface for these low-level C functions that I could add the call to.  Alternatively, if there isn't such a repository, do people feel that it would be worthwhile to create one?  I'd be happy enough to do the work to get the ball rolling.

Alli


On Monday, August 04, 2008, at 05:17PM, "Marcelo Alves" <mar...@xf...> wrote:
>  Write (and implement) a category in ObjC or a new class and use it
>from RubyCocoa.
>
>
>2008/8/4 Allison Newman <dem...@ma...>:
>> Hi everyone,
>>
>> OK, for those that don't religiously follow cocoadev, I just asked a question over there about how to stop my Mac from going to sleep.  The response was not exactly... ideal from the point of view of a RubyCocoa developer.  Apparently the answer is to use the following:
>>
>> UpdateSystemActivity(OverallAct);
>>
>> Which is a pure C function call, with the prototype being found in power.h
>>
>> My question is:  How do I best go about integrating this into a RubyCocoa app.  I have previously written C Extensions to Ruby, but that doesn't seem to be a particularly flexible/reuseable solution.  What is considered the best way of accessing this type of code, or better yet, has anyone already exposed this functionality for RubyCocoa?
>>
>> Thanks in advance for any help/guidance.
>>
>> Alli
>>
>> -------------------------------------------------------------------------
>> This SF.Net email is sponsored by the Moblin Your Move Developer's challenge
>> Build the coolest Linux based applications with Moblin SDK & win great prizes
>> Grand prize is a trip for two to an Open Source event anywhere in the world
>> http://moblin-contest.org/redirect.php?banner_id=100&url=/
>> _______________________________________________
>> Rubycocoa-talk mailing list
>> Rub...@li...
>> https://lists.sourceforge.net/lists/listinfo/rubycocoa-talk
>>
>
>-------------------------------------------------------------------------
>This SF.Net email is sponsored by the Moblin Your Move Developer's challenge
>Build the coolest Linux based applications with Moblin SDK & win great prizes
>Grand prize is a trip for two to an Open Source event anywhere in the world
>http://moblin-contest.org/redirect.php?banner_id=100&url=/
>_______________________________________________
>Rubycocoa-talk mailing list
>Rub...@li...
>https://lists.sourceforge.net/lists/listinfo/rubycocoa-talk
>
>

Re: [Rubycocoa-talk] Preventing Sleep

[Marcelo A. <mar...@xf...>]

  Write (and implement) a category in ObjC or a new class and use it
from RubyCocoa.


2008/8/4 Allison Newman <dem...@ma...>:
> Hi everyone,
>
> OK, for those that don't religiously follow cocoadev, I just asked a question over there about how to stop my Mac from going to sleep.  The response was not exactly... ideal from the point of view of a RubyCocoa developer.  Apparently the answer is to use the following:
>
> UpdateSystemActivity(OverallAct);
>
> Which is a pure C function call, with the prototype being found in power.h
>
> My question is:  How do I best go about integrating this into a RubyCocoa app.  I have previously written C Extensions to Ruby, but that doesn't seem to be a particularly flexible/reuseable solution.  What is considered the best way of accessing this type of code, or better yet, has anyone already exposed this functionality for RubyCocoa?
>
> Thanks in advance for any help/guidance.
>
> Alli
>
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[Rubycocoa-talk] Preventing Sleep

[Allison N. <dem...@ma...>]

Hi everyone,

OK, for those that don't religiously follow cocoadev, I just asked a question over there about how to stop my Mac from going to sleep.  The response was not exactly... ideal from the point of view of a RubyCocoa developer.  Apparently the answer is to use the following:

UpdateSystemActivity(OverallAct);

Which is a pure C function call, with the prototype being found in power.h

My question is:  How do I best go about integrating this into a RubyCocoa app.  I have previously written C Extensions to Ruby, but that doesn't seem to be a particularly flexible/reuseable solution.  What is considered the best way of accessing this type of code, or better yet, has anyone already exposed this functionality for RubyCocoa?

Thanks in advance for any help/guidance.

Alli

Re: [Rubycocoa-talk] What's the equivalent obj-c?

[Patrick G. <pge...@wa...>]

> Just a quick one, but what would be the equivalent of:
>
> kvc_accessor :authorized
>
> in obj-c? Just trying to fully understand what that code actually  
> does!

It defines a getter for the instance variable. If authorized is an  
object, it's equivalent to

-(id)authorized
{
	return authorizedInstanceVariable;
}

BTW, kvc_accessor is defined in RubyCocoa and you can check the source  
in /System/Library/Frameworks/RubyCocoa.framework/Versions/A/Resources/ 
ruby/osx/objc/oc_import.rb

-Patrick

[Rubycocoa-talk] What's the equivalent obj-c?

[Tim P. <he...@ti...>]

Hey chaps,

Just a quick one, but what would be the equivalent of:

kvc_accessor :authorized

in obj-c? Just trying to fully understand what that code actually does!

Cheers all

Tim

Re: [Rubycocoa-talk] problems with NSOutlineView and DataSource mixed with Bindings

[Patrick G. <pge...@wa...>]

> For the longest time, I couldn't get the NSOutlineView to  
> acknowledge the @root object at all. Even though this same code  
> worked previously without bindings.
> I have no idea why the FaultTreeDisplayNode is being sent the  
> copyWithZone selector nor have I ever seen anything that requires  
> you to do so for either Bindings or DataSources.

When updating values, Bindings try to call setObjectValue on your  
cell. If that doesn't work, next step is trying to copy the object  
with copyWithZone.

In a ruby project I added this …

class ItemTableViewCell < NSTextFieldCell
	def setObjectValue(obj)
		@item = obj
	end

… then used @item's contents in drawInteriorWithFrame_inView to draw  
the cell. If you don't draw yourself, just define a new cell class and  
add that setObjectValue implementation.

-Patrick