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

Concurrency bug in ControlTower
by Charles Oliver Nutter 23 Oct '11

23 Oct '11

Apologies reporting this here; I'm not sure where I should report bugs in ControlTower. I believe there's a bug in ControlTower around line 34: def open @status = :open while (@status == :open) connection = @socket.accept # << here @request_queue.async(@request_group) do The "connection" local variable is used in the async block below to parse the request and send the response. Unless MacRuby's blocks behave differently than regular Ruby, this variable is shared across all activations of that block. As a result, it's possible that two concurrent requests will end up using each others' connection, and usually just blowing up as a result. The fix I've come up with is to wrap the @request_queue.async call in a tap call: def open @status = :open while (@status == :open) conn = @socket.accept conn.tap do |connection| @request_queue.async(@request_group) do Since async can't accept any explicitly-passed state, this seems like the safest way to ensure the connection reference is not shared by separate invocations. I'm not sure if it's possible in GCD, but having async take an optional argument with explicitly-passed state might also be a good way to fix this. - Charlie

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macruby_deploy not embedding all of MacRuby
by Kevin Colyar 12 May '11

12 May '11

I'm running the following command to prepare my app to share with testers. PATH="$PATH:/usr/local/bin" macruby_deploy --embed --compile "$TARGET_BUILD_DIR/$PROJECT_NAME.app" On my machine, its says the app directory is ~25MB but testers get the following error when they try to run it: dyld: Library not loaded: @executable_path/../Frameworks/MacRuby.framework/Versions/0.10/usr/lib/libmacruby.dylib Referenced from: /Applications/ViKing.app/Contents/MacOS/ViKing Reason: no suitable image found. Did find: /Applications/ViKing.app/Contents/MacOS/../Frameworks/MacRuby.framework/Versions/0.10/usr/lib/libmacruby.dylib: unknown file type, first eight bytes: 0x6C 0x69 0x62 0x6D 0x61 0x63 0x72 0x75 /Applications/ViKing.app/Contents/MacOS/../Frameworks/MacRuby.framework/Versions/0.10/usr/lib/libmacruby.dylib: unknown file type, first eight bytes: 0x6C 0x69 0x62 0x6D 0x61 0x63 0x72 0x75 Trace/BPT trap When I upload the app directory to a remote server it's ~55MB and works only other's machines. I assume this is due to symbolic links. Has anyone else seen this or have a fix for it? Perhaps I'm missing a flag that I need to pass to macruby_deploy. Thanks, Kevin -- Kevin Colyar http://kevin.colyar.net

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Sqlite3 without core data
by Petr Kaleta 02 May '11

02 May '11

Can you suggest me some gem/framework to work with Sqlite3 without core data? Something which has nice DSL and good performance. Thanks - Petr

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Failure with outlineView data source
by Malcolm F 01 May '11

01 May '11

I'm getting crashes using an outlineView data source fed by an array of numbers. The crash happens after fiddling around in the view, usually after some variable small delay. Upon crash, the debugger is always stopped in 'class_getSuperclass'. The crash only happens using Integers or Floats over 12. I've simplified it down to this sparse MyDocument class that can be put into a document-based app. Put an outline view into MyDocument.xib and connect the datasource delegate to MyDocument. I'm new at this, so if an experienced MacRubyist can show me what I'm doing wrong, I will be very grateful. thanks, m <<code snippet start>> class MyDocument < NSDocument attr_accessor :dataSourceArray def init super if (self != nil) # Add your subclass-specific initialization here. # If an error occurs here, return nil. end self end def awakeFromNib #@dataSourceArray = [1,2,3,4,5,6,7,8,9,10,11,12] #survives @dataSourceArray = [1,2,3,4,5,6,7,8,9,10,11,12,13] #crashes, anything over 12 #@dataSourceArray = [0.to_i,8.to_i,116.to_i,224.to_i,400.to_i,1000.to_i] #crashes #@dataSourceArray = 13.0 #float also crashes #@dataSourceArray = [10] #survives #@dataSourceArray = [99] #crashes #@dataSourceArray = 99 #crashes #@dataSourceArray = 9 #survives #@dataSourceArray = [NSNumber.numberWithInt(99)] #crashes #@dataSourceArray = Array.new [117] #crashes #@dataSourceArray = [1,2,3,4,[5,6],7,8,9,0] #survives #@dataSourceArray = [0,8,116,224,400,1000] #crashes #@dataSourceArray = [0.to_s,8.to_s,116.to_s,224.to_s,400.to_s,1000.to_s] #survives #@dataSourceArray = [:zero,:eight,:onesixteen,:twotwentyfour,:fourhundred,:hundredyoh] #survives end def windowNibName "MyDocument" end ################## DataSource for OV ####################### def outlineView(outlineView, numberOfChildrenOfItem:item) if item.is_a? Array return item.count end 1 end def outlineView(outlineView, isItemExpandable:item) (item == nil) || ((item.is_a? Array) && (item.count > 0)) end def outlineView(outlineView, child:index, ofItem:item) #returns child item objects if item == nil return @dataSourceArray #root item end if item.is_a? Array return item[index] end return nil end def outlineView(outlineView, objectValueForTableColumn:tableColumn, byItem:item) # returns the object represented by the column at this item item.to_s end end <<code snippet end>>

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get and set a checkbox in tableview
by Pavlos Vinieratos 30 Apr '11

30 Apr '11

Hello. I am writing a little app, and I have a table view with a checkbox cell and a text cell in each row. I implemented the data source, and in tableView:objectValueForColumn:row:, in the checkbox row I just return NSOnState or NSOffState, but when I run the app, the checkboxes don't get checked where they should. Also, when one is checked, how can I uncheck it through tableView:setObjectValueForColumn:row? thank you -- Pavlos Vinieratos -- Pavlos Vinieratos

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Hot Cocoa
by Mark Rada 30 Apr '11

30 Apr '11

For those that are still interested in Hot Cocoa, my fork has merged in changes from all the other forks and I've been making several other changes. Thanks to help of Watson, the application builder is now completely working again (AFAICT, since I only have a few regression tests), and the example apps appear to be working. My plan is to continue going through the source and adding documentation and regression tests, as well as some additional mappings and other small features. I'm not sure if I'll have as much time as needed in the next few months, so I wouldn't say the project is now maintained. My interest in hot cocoa is mostly driven by curiosity. I'd like to better understand its capabilities and where it can be applied; specifically how it exceeds or falls short of Interface Builder and how they can be used together. It also seems like an interesting way to learn more about Cocoa (which I am still getting the hang of). Mark Rada mrada(a)marketcircle.com

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Building an application package
by Petr Kaleta 29 Apr '11

29 Apr '11

Hi, is there any tutorial how to build standalone application package without Xcode? Right now I am developing it in Textmate and debugging from terminal using $ macruby main.rb So how can I create standalone *.app which will include all gems, frameworks, etc. And also my ruby code must be compiled as well. Thanks - Petr

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Re: [MacRuby-devel] NSTrackingArea
by Sean Mateus 28 Apr '11

28 Apr '11

this worked for me! class TowerView < NSView def awakeFromNib tracking_area = NSTrackingArea.alloc.initWithRect self.bounds, options:(NSTrackingCursorUpdate | NSTrackingActiveInActiveApp), owner:self, userInfo:nil puts tracking_area.methods(true,true) self.addTrackingArea tracking_area end end > It's still the same and of course I have the cocoa framework loaded > otherwise it wouldn't find the NSTrackingArea class.

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NSTrackingArea
by Thomas R. Koll 27 Apr '11

27 Apr '11

Hi, I trying to listen to events by mouseMoved using a NSTrackingArea as the cocoa docs suggest but I can't get it working in MacRuby. This is my simplified view i want to add the tracking zone but I'm getting: undefined method `initWithRect' for #<NSTrackingArea:0x200bfa3c0> (NoMethodError) class TowerView < NSView def awakeFromNib tracking_area = NSTrackingArea.alloc.initWithRect self.bounds self.addTrackingArea tracking_area tracking_area.initWithRect self.bounds end end Any hint for me, or is it missing in one of those bridge files? -- Thomas R. "TomK32" Koll http://ananasblau.com

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Xcode 4 - Font & Colors Theme for Macruby
by anoiaque 27 Apr '11

27 Apr '11

Hi, Is there a way to create an .dvtcolortheme xml file for macruby. It seems that xcode4 does not recognize macruby language elements for font and colorize, am i wrong ? Thanks

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