July 2010 - MacRuby-devel - lists.macosforge.org

An easy way to add .rb files to Xcode build automatically?
by Michael Jackson 29 Jul '10

29 Jul '10

I usually write all of my Ruby code in Vim, but I'm using Xcode to keep my project organized and to build/debug/etc. Whenever I create a new file in Vim I have to go into my Xcode project and add the files to the "Classes" group manually. Is there a good way to set up a folder reference in Xcode that will automatically keep track of my new .rb files and copy them to the project root when I build? Or do I always have to add them manually? I tried adding a folder to the root of my project called "Classes" in which I put all of my Ruby code. I then added that folder reference to the project. However, when I build the project the files are copied to a "Classes" folder in the build instead of to the project root where they can be found by main.rb. -- Michael Jackson http://mjijackson.com @mjijackson

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sorting colors (MacRuby Graphics)
by Matt Aimonetti 28 Jul '10

28 Jul '10

I wrote a new sample for MacRuby Graphics that samples the colors from a jpg and display them. I was trying to find a good way to sort the colors in a way that makes total sense (sort by color family and by brightness). Unfortunately, this isn't an easy thing to do, here is the result: http://img.skitch.com/20100716-nth8dcm4ag12bcns1fgngt4ird.png Source code: http://github.com/mattetti/macruby_graphics/blob/master/examples/color_samp… I'd be curious to know if one of you knows a better way to do that? Thanks, - Matt

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ControlTower in MacRuby
by Alexander von Below 28 Jul '10

28 Jul '10

Hello, I apologize for the repost, but I have not found help anywhere else... My goal is to run a ControlTower instance (1) in MacRuby within a Cocoa app, i.e. using -[MacRuby evaluateFileAtPath:] First question: Is this possible at all? Second question: I understand that my control script is the body to: app = Rack::Builder.new { ... config ... }.to_app but I have not figured out how to make an .rb file that will run a control tower instance. Any help is appreciated! Alex 1) http://svn.macosforge.org/repository/ruby/ControlTower/

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[MacRuby] #805: Can't build MacRuby0.6 on Mac OSX 10.5.8 with llvm(rev89156)
by MacRuby 28 Jul '10

28 Jul '10

#805: Can't build MacRuby0.6 on Mac OSX 10.5.8 with llvm(rev89156) ---------------------------------+------------------------------------------ Reporter: kyossi212@… | Owner: lsansonetti@… Type: defect | Status: new Priority: blocker | Milestone: Component: MacRuby | Keywords: build Leopard ---------------------------------+------------------------------------------ 1. download MacRuby0.6 from SVN, as http://www.macruby.org/source.html say. 2. Following README.rdoc, Install llvm rev 89156. llvm build successfully. 3. rake failed for MacRuby0.6. $rake /usr/bin/ruby tool/compile_prelude.rb prelude.rb miniprelude.c.new rm miniprelude.c.new /usr/bin/g++-4.2 -I/usr/local/include -D_DEBUG -D_GNU_SOURCE -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS -O2 -fno-common -Woverloaded-virtual -I. -I./include -g -Wall -arch i386 -arch x86_64 -Wno-parentheses -Wno-deprecated-declarations -Werror -I./icu-1060 -c vm.cpp -o vm.o cc1plus: warnings being treated as errors /usr/include/c++/4.0.0/bits/stl_uninitialized.h: In function ‘_ForwardIterator std::__uninitialized_copy_aux(_InputIterator, _InputIterator, _ForwardIterator, __false_type) [with _InputIterator = __gnu_cxx::__normal_iterator<RoxorFunction::Line*, std::vector<RoxorFunction::Line, std::allocator<RoxorFunction::Line> > >, _ForwardIterator = __gnu_cxx::__normal_iterator<RoxorFunction::Line*, std::vector<RoxorFunction::Line, std::allocator<RoxorFunction::Line> > >]’: /usr/include/c++/4.0.0/bits/stl_uninitialized.h:92: warning: control reaches end of non-void function cc1plus: warnings being treated as errors /usr/include/c++/4.0.0/bits/stl_uninitialized.h: In function ‘_ForwardIterator std::__uninitialized_copy_aux(_InputIterator, _InputIterator, _ForwardIterator, __false_type) [with _InputIterator = __gnu_cxx::__normal_iterator<RoxorFunction::Line*, std::vector<RoxorFunction::Line, std::allocator<RoxorFunction::Line> > >, _ForwardIterator = __gnu_cxx::__normal_iterator<RoxorFunction::Line*, std::vector<RoxorFunction::Line, std::allocator<RoxorFunction::Line> > >]’: /usr/include/c++/4.0.0/bits/stl_uninitialized.h:92: warning: control reaches end of non-void function lipo: can't figure out the architecture type of: /var/folders/ta/tas10EvnE7CTtN0lbeES1k+++TI/-Tmp-//ccPdEJKo.out rake aborted! Command failed with status (1): [/usr/bin/g++-4.2 -I/usr/local/include -D_...] (See full trace by running task with --trace) -- Ticket URL: <http://www.macruby.org/trac/ticket/805> MacRuby <http://macruby.org/>

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working with pixels in bitmaps?
by Emil Tin 28 Jul '10

28 Jul '10

hi, i'm trying to draw pixels in a bitmap. first i'm allocating a NSBitmapImageRep: def awakeFromNib @nsBitmapImageRepObj = NSBitmapImageRep.alloc.initWithBitmapDataPlanes nil, pixelsWide:@nsRectFrameRect.size.width, pixelsHigh:@nsRectFrameRect.size.height, bitsPerSample:8, samplesPerPixel:3, hasAlpha:false, isPlanar:false, colorSpaceName:"NSCalibratedRGBColorSpace", bytesPerRow:0, bitsPerPixel:0 end i can in fact write pixels if i use the setPixel method: def drawBitmap xs = 255.0/(a)nsRectFrameRect.size.width ys = 255.0/(a)nsRectFrameRect.size.height 0.upto @nsRectFrameRect.size.height do |y| 0.upto @nsRectFrameRect.size.width do |x| color = [x*xs,y*ys,0] @nsBitmapImageRepObj.setPixel color, atX:x, y:y end end setNeedsDisplay true end however, i can't figure out how to write directly to the bitmap. bitmapData returns a pointer to the allocated memery, but how do i write to it? @nsBitmapImageRepObj.bitmapData[0] = 255 # => can't convert Fixnum into String (TypeError) @nsBitmapImageRepObj.bitmapData[1] = '\255' # => index 1 out of string (IndexError) documentation states that bitmapData returns an unsigned char*, but when ruby seems to think it's a string with length zero. do i need to use the Pointer class? searching for 'pixel' here on the list revelealed this post by julien jassaud back in dec 2009: > I also had a problem with function NSBitmapImageRep. Again, a pointer problem. Having an NSBitmapImageRep, the function bitmapData returns an (unsigned char *) but in MacRuby, it returns an empty string. The workaround was to create the class in an Objective C bundle. any news on this issue? thanks in advance, emil tin

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[MacRuby] #815: Macrake crashes at initialization
by MacRuby 28 Jul '10

28 Jul '10

#815: Macrake crashes at initialization -------------------------------+-------------------------------------------- Reporter: legrand@… | Owner: lsansonetti@… Type: defect | Status: new Priority: critical | Milestone: MacRuby 0.7 Component: MacRuby | Keywords: -------------------------------+-------------------------------------------- Running macrake without any argument results in a segmentation fault. Macrake also fails on trivial rake files with the same stack. It appears that object_getClass gets called with an invalid pointer (value 8) by rb_objc_nsnumber2numeric. {{{ Exception Type: EXC_BAD_ACCESS (SIGSEGV) Exception Codes: KERN_INVALID_ADDRESS at 0x0000000000000008 Crashed Thread: 0 Dispatch queue: com.apple.main-thread Application Specific Information: objc[86966]: garbage collection is ON Thread 0 Crashed: Dispatch queue: com.apple.main-thread 0 libobjc.A.dylib 0x00007fff8348c5f0 object_getClass + 11 1 libmacruby.dylib 0x00000001000dc123 rb_objc_nsnumber2numeric + 19 2 ??? 0x0000000103aa6100 0 + 4356464896 3 com.apple.CoreFoundation 0x00007fff81dcb20f -[__NSPlaceholderDictionary initWithObjects:forKeys:count:] + 783 4 com.apple.CoreFoundation 0x00007fff81dcd74a +[NSDictionary dictionaryWithObject:forKey:] + 58 5 libmacruby.dylib 0x00000001000dc410 rb_rb2oc_exception + 96 6 libmacruby.dylib 0x0000000100142a5d rb_vm_raise + 429 7 libmacruby.dylib 0x000000010003027b rb_make_exception + 523 8 libmacruby.dylib 0x0000000100130399 rb_vm_dispatch + 6841 }}} Let me know if more information is required. -- Ticket URL: <http://www.macruby.org/trac/ticket/815> MacRuby <http://macruby.org/>

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malloc error: GC operation on unregistered thread
by Michael Jackson 27 Jul '10

27 Jul '10

Hi all, I'm getting a malloc error every time I run my app. Here's what I'm getting in the console: Running… Bottlefly(45475,0x116a20000) malloc: *** auto malloc[45475]: error: GC operation on unregistered thread. Thread registered implicitly. Break on auto_zone_thread_registration_error() to debug. Being a Ruby developer and not familiar with C debugging techniques, I'm a bit lost as to what to do to track down this bug. I noticed there's another thread going on right now, but with a slightly different error. Does this seem like something that may be fixed in trunk? -- Michael Jackson http://mjijackson.com @mjijackson

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malloc error
by Robert Rice 27 Jul '10

27 Jul '10

MacRuby 0.6 is working well for me but I recently started getting the following malloc error while using the custom page size dialog in Page Setup: MacRuby 0.6 Release(774,0x7fff7045cc20) malloc: reference count underflow for 0x20275e080, break on auto_refcount_underflow_error to debug. MacRuby 0.6 Release(774,0x7fff7045cc20) malloc: reference count underflow for 0x202644e40, break on auto_refcount_underflow_error to debug. MacRuby 0.6 Release(774,0x7fff7045cc20) malloc: reference count underflow for 0x20083b6c0, break on auto_refcount_underflow_error to debug. This bug generally doesn't cause my MacRuby app to crash but it does crash audio and video streaming applications such as iTunes and EyeTV. Is this a known bug? Thanks, Bob Rice

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[MacRuby] #811: Bus error encrypting/decrypting with OpenSSL
by MacRuby 26 Jul '10

26 Jul '10

#811: Bus error encrypting/decrypting with OpenSSL -------------------------------+-------------------------------------------- Reporter: pwilson@… | Owner: lsansonetti@… Type: defect | Status: new Priority: blocker | Milestone: MacRuby 0.7 Component: MacRuby | Keywords: -------------------------------+-------------------------------------------- I've verified that Trac 809 fixes an OpenSSL bug I ran into, but I'm running into additional failures later in the process of doing encryption/decryption operations. I'm attaching a test file that first encrypts some data with an RSA key and then decrypts it. On encryption, the script bus errors with this stack trace: {{{ Program received signal EXC_BAD_ACCESS, Could not access memory. Reason: KERN_PROTECTION_FAILURE at address: 0x0000000100972cd8 0x00007fff84444289 in BN_bn2bin () (gdb) bt #0 0x00007fff84444289 in BN_bn2bin () #1 0x00007fff844b0634 in RSA_eay_public_encrypt () #2 0x00007fff844c4c6b in RSA_public_encrypt () #3 0x0000000103d1ad79 in ossl_rsa_public_encrypt () #4 0x00000001001408e9 in rb_vm_dispatch () #5 0x0000000103a00d50 in ?? () #6 0x0000000103a03d1c in ?? () #7 0x0000000100140805 in rb_vm_dispatch () #8 0x0000000103a00d50 in ?? () #9 0x0000000103a00346 in ?? () #10 0x000000010014d5b8 in rb_vm_run () #11 0x0000000100040530 in ruby_run_node () #12 0x0000000100000d28 in main () }}} If I encrypt the data using Ruby 1.9.2, save it to a file, and then use MacRuby to decrypt it, I get this stack trace: {{{ Program received signal EXC_BAD_ACCESS, Could not access memory. Reason: KERN_PROTECTION_FAILURE at address: 0x0000000100972cd8 0x00007fffffe007c5 in __memcpy () (gdb) bt #0 0x00007fffffe007c5 in __memcpy () #1 0x00007fff8449e138 in RSA_padding_check_PKCS1_type_2 () #2 0x00007fff844b127e in RSA_eay_private_decrypt () #3 0x00007fff844c4c8b in RSA_private_decrypt () #4 0x0000000103c1a8a8 in ossl_rsa_private_decrypt () #5 0x00000001001408e9 in rb_vm_dispatch () #6 0x0000000103a00be0 in ?? () #7 0x0000000103a0aa8d in ?? () #8 0x000000010014082b in rb_vm_dispatch () #9 0x0000000103a00be0 in ?? () #10 0x0000000103a0a344 in ?? () #11 0x0000000100140846 in rb_vm_dispatch () #12 0x0000000103a00be0 in ?? () #13 0x0000000103a0023e in ?? () #14 0x000000010014d5b8 in rb_vm_run () #15 0x0000000100040530 in ruby_run_node () #16 0x0000000100000d28 in main () }}} Looking at the source code, I assume it is pretty much the same issue as fixed in Trac 809 (revision 4373) for the Cipher code. Ie... {{{ - str = rb_str_new(0, out_len); + str = rb_bstr_new(); + rb_bstr_resize(str, out_len); }}} -- Ticket URL: <http://www.macruby.org/trac/ticket/811> MacRuby <http://macruby.org/>

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MacRuby with Xcode 4 preview
by Kenny Lovrin 26 Jul '10

26 Jul '10

Hey I realize I might be a bit ahead of time here, but still wanted to ask; Is there any way of getting the templates and IB support into Xcode 4 at this time? I tried out of curiosity to create a project with 3.2.3 and open it in the Xcode 4 preview, which builds fine with my real quick testing. There seems to be the IB support lacking though, and it would be really nice if it was possible to get it working. :) I'm not sure where MacRuby installs the templates etc, otherwise I would just have tested to copy them, but I supect it won't work anyway? Thanks, Kenny

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