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Re: [Rubycocoa-talk] copyWithZone
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From: Laurent S. <lsa...@ap...> - 2007-08-04 16:30:30
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Okay, that's because your cell's object value is a NSObject class that doesn't implement copyWithZone. From your first message I see that you got a crash when trying to implement it. Can you try to call: objc_method :copyWithZone, ''@@:^v" inside your Download class? Thanks, Laurent On Aug 4, 2007, at 6:18 PM, Eloy Duran wrote: > Yes, that's true. However the problem is not with the NSCell subclass > (DownloadCell) but with the NSObject subclass (Download) that holds > the values for the cell. > > If I don't implement the copyWithZone method it exits with a method > not found error: > 2007-08-04 18:15:29.644 HellaNZB[3861] *** -[Download copyWithZone:]: > selector not recognized [self = 0x158c2400] > /Users/eloy/Documents/DEVELOPMENT/RubyCocoa/Nzb/hellanzb/build/ > Release/HellaNZB.app/Contents/Resources/rb_main.rb:22:in > `NSApplicationMain': NSInvalidArgumentException - *** -[Download > copyWithZone:]: selector not recognized [self = 0x158c2400] > (OSX::OCException) > from /Users/eloy/Documents/DEVELOPMENT/RubyCocoa/Nzb/hellanzb/build/ > Release/HellaNZB.app/Contents/Resources/rb_main.rb:22 > > As you can see the class of the object that it's being called on is > Download which is a NSObject subclass. > > Otherwise I will create a small app and see if I can replicate the > problem. > > Ciao, > Eloy > > On 8/4/07, Laurent Sansonetti <lsa...@ap...> wrote: >> copyWithZone: is part of the NSCopying protocol, which NSObject >> doesn't implement but NSCell does. >> >> http://developer.apple.com/documentation/Cocoa/Reference/Foundation/Protocols/NSCopying_Protocol/Reference/Reference.html >> >> Laurent >> >> On Aug 4, 2007, at 6:05 PM, Eloy Duran wrote: >> >>> Hey Lrz, >>> >>> That would have been very nice! :) >>> However unfortunately NSObject doesn't implement copyWithZone... >>> >>>>> foo = OSX::NSObject.alloc.init >>> => #<OSX::NSObject:0x2e00e class='NSObject' id=0x159ac60> >>>>> foo.objc_methods.grep(/zone/i) >>> => ["zone"] >>> >>> Eloy >>> >>> On 8/4/07, Laurent Sansonetti <lsa...@ap...> wrote: >>>> Try: >>>> >>>> def copyWithZone(zone) >>>> copy = super_copyWithZone(zone) >>>> # set your attributes to copy >>>> # ex: >>>> # copy.title = self.title >>>> return copy >>>> end >>>> >>>> Laurent >>>> >>>> On Aug 4, 2007, at 5:53 PM, Eloy Duran wrote: >>>> >>>>> Hello, >>>>> >>>>> I'm trying to write my own custom NSCell for a tableview. >>>>> However, the table view tries to call #copyWithZone on my objects, >>>>> which are subclasses of NSObject. So I was trying to create a >>>>> working >>>>> #copyWithZone, but no matter what I do it always crashes >>>>> immediately. >>>>> For instance I have the following, but it doesn't even write to >>>>> the >>>>> console: >>>>> >>>>> def copyWithZone(zone) >>>>> puts 'COPY!' >>>>> copy = Download.allocWithZone(zone).init >>>>> self.instance_variables.each do |iv| >>>>> copy.instance_variable_set iv, self.instance_variable_get(iv) >>>>> end >>>>> return copy >>>>> end >>>>> >>>>> Backtrace: >>>>> >>>>> #0 0x90a594c0 in objc_msgSend () >>>>> #1 0xbfffc21c in ?? () >>>>> #2 0x0002b850 in ocid_to_rbobj () >>>>> #3 0x0002df10 in ocdata_to_rbobj () >>>>> #4 0x0003051a in ovmix_register_ruby_method () >>>>> #5 0x00031a98 in rbobj_call_ruby () >>>>> #6 0x00031075 in ovmix_register_ruby_method () >>>>> #7 0x0002f8b9 in init_ovmix () >>>>> #8 0x927fa468 in -[NSObject(NSForwardInvocation) forward::] () >>>>> #9 0x90a5ccc1 in _objc_msgForward () >>>>> #10 0x932aed02 in -[NSCell _setContents:] () >>>>> #11 0x932aec95 in -[NSCell setObjectValue:] () >>>>> #12 0x9353abaa in -[_NSPlaceholderTextFieldPlugin >>>>> showValue:inObject:] () >>>>> #13 0x93511593 in -[NSValueBinder showValue:inObject:] () >>>>> #14 0x93510938 in -[NSValueBinder >>>>> _adjustObject:mode:observedController:observedKeyPath:context:editableState:adjustState >>>>> :] >>>>> () >>>>> #15 0x9353a287 in -[NSValueBinder >>>>> updateTableColumnDataCell:forDisplayAtIndex:] () >>>>> #16 0x9353a9ef in -[NSTextValueBinder >>>>> updateTableColumnDataCell:forDisplayAtIndex:] () >>>>> #17 0x9353a1d6 in -[_NSBindingAdaptor >>>>> tableColumn:willDisplayCell:row:] () >>>>> #18 0x93402a9d in -[NSTableView >>>>> _sendDelegateWillDisplayCell:forColumn:row:] () >>>>> #19 0x933ea065 in -[NSTableView >>>>> _drawContentsAtRow:column:clipRect:] >>>>> () >>>>> #20 0x933e902b in -[NSTableView drawRow:clipRect:] () >>>>> #21 0x933e67ce in -[NSTableView drawRowIndexes:clipRect:] () >>>>> #22 0x933e56a4 in -[NSTableView drawRect:] () >>>>> #23 0x933113b1 in -[NSView _drawRect:clip:] () >>>>> #24 0x9331040b in -[NSView >>>>> _recursiveDisplayAllDirtyWithLockFocus:visRect:] () >>>>> #25 0x9330f473 in -[NSView >>>>> _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView >>>>> :] >>>>> () >>>>> #26 0x93310041 in -[NSView >>>>> _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView >>>>> :] >>>>> () >>>>> #27 0x93310041 in -[NSView >>>>> _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView >>>>> :] >>>>> () >>>>> #28 0x93310041 in -[NSView >>>>> _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView >>>>> :] >>>>> () >>>>> #29 0x93310041 in -[NSView >>>>> _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView >>>>> :] >>>>> () >>>>> #30 0x9330eb78 in -[NSThemeFrame >>>>> _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView >>>>> :] >>>>> () >>>>> #31 0x9330e362 in -[NSView >>>>> _displayRectIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView >>>>> :] >>>>> () >>>>> #32 0x9330dc8e in -[NSView displayIfNeeded] () >>>>> #33 0x9330da32 in -[NSWindow displayIfNeeded] () >>>>> #34 0x9335dd6c in _handleWindowNeedsDisplay () >>>>> #35 0x9082dd6e in __CFRunLoopDoObservers () >>>>> #36 0x9082ce10 in CFRunLoopRunSpecific () >>>>> #37 0x9082cace in CFRunLoopRunInMode () >>>>> #38 0x92dec8d8 in RunCurrentEventLoopInMode () >>>>> #39 0x92debfe2 in ReceiveNextEventCommon () >>>>> #40 0x92debe39 in BlockUntilNextEventMatchingListInMode () >>>>> #41 0x93292465 in _DPSNextEvent () >>>>> #42 0x93292056 in -[NSApplication >>>>> nextEventMatchingMask:untilDate:inMode:dequeue:] () >>>>> #43 0x9328bddb in -[NSApplication run] () >>>>> #44 0x9327fd2f in NSApplicationMain () >>>>> #45 0x0003fc0d in ffi_call_SYSV () >>>>> #46 0x0003fbae in ffi_call () >>>>> #47 0x0003cfa0 in rb_ffi_dispatch () >>>>> #48 0x00035ca0 in find_bs_boxed_by_encoding () >>>>> #49 0x00221e09 in call_cfunc () >>>>> #50 0x002214f2 in rb_call0 () >>>>> #51 0x00222489 in rb_call () >>>>> #52 0x0021c34a in rb_eval () >>>>> #53 0x00217d9c in eval_node () >>>>> #54 0x00218369 in ruby_exec_internal () >>>>> #55 0x002183b3 in ruby_exec () >>>>> #56 0x002183dd in ruby_run () >>>>> #57 0x00033474 in RBApplicationMain () >>>>> #58 0x00002886 in main () >>>>> >>>>> So does somebody know of a good way of implementing this with >>>>> RubyCocoa? >>>>> >>>>> Cheers, >>>>> Eloy >>>>> >>>>> PS: I'm on svn rev 1983 >>>>> >>>>> ------------------------------------------------------------------------- >>>>> This SF.net email is sponsored by: Splunk Inc. >>>>> Still grepping through log files to find problems? Stop. >>>>> Now Search log events and configuration files using AJAX and a >>>>> browser. >>>>> Download your FREE copy of Splunk now >> http://get.splunk.com/ >>>>> _______________________________________________ >>>>> Rubycocoa-talk mailing list >>>>> Rub...@li... >>>>> https://lists.sourceforge.net/lists/listinfo/rubycocoa-talk >>>> >>>> >>>> ------------------------------------------------------------------------- >>>> This SF.net email is sponsored by: Splunk Inc. >>>> Still grepping through log files to find problems? Stop. >>>> Now Search log events and configuration files using AJAX and a >>>> browser. >>>> Download your FREE copy of Splunk now >> http://get.splunk.com/ >>>> _______________________________________________ >>>> Rubycocoa-talk mailing list >>>> Rub...@li... >>>> https://lists.sourceforge.net/lists/listinfo/rubycocoa-talk >>>> >>> >>> ------------------------------------------------------------------------- >>> This SF.net email is sponsored by: Splunk Inc. >>> Still grepping through log files to find problems? Stop. >>> Now Search log events and configuration files using AJAX and a >>> browser. >>> Download your FREE copy of Splunk now >> http://get.splunk.com/ >>> _______________________________________________ >>> Rubycocoa-talk mailing list >>> Rub...@li... >>> https://lists.sourceforge.net/lists/listinfo/rubycocoa-talk >> >> >> ------------------------------------------------------------------------- >> This SF.net email is sponsored by: Splunk Inc. >> Still grepping through log files to find problems? Stop. >> Now Search log events and configuration files using AJAX and a >> browser. >> Download your FREE copy of Splunk now >> http://get.splunk.com/ >> _______________________________________________ >> Rubycocoa-talk mailing list >> Rub...@li... >> https://lists.sourceforge.net/lists/listinfo/rubycocoa-talk >> > > ------------------------------------------------------------------------- > This SF.net email is sponsored by: Splunk Inc. > Still grepping through log files to find problems? Stop. > Now Search log events and configuration files using AJAX and a > browser. > Download your FREE copy of Splunk now >> http://get.splunk.com/ > _______________________________________________ > Rubycocoa-talk mailing list > Rub...@li... > https://lists.sourceforge.net/lists/listinfo/rubycocoa-talk |
