Re: Decode a base64 image for iphone
On Mar 29, 2009, at 11:28 PM, developers mac wrote: I am getting an image of base64 type encoded one. I have to decode it. Can some one suggest me on this. I am new to this concept. Any help would be greatly appreciated. http://www.lmgtfy.com/?q=cocoa+base64+decode Nick Zitzmann http://www.chronosnet.com/ ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
NSDates and natural language ...
Hi, Is anyone aware of any frameworks/classes that have been released that allow you to return natural language from a date ? What I mean by this is if, for example, I pass todays date it would return 'Today', yesterdays date would return 'Yesterday', 25th March 08 would return 'Last week' etc I know I can work this out manually using NSTimeInterval, some calculations and plenty of if statements but I was hoping there was already something out there. Thanks, -Mic ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Small white border around custom cell in NSTableView ...
Hi, Whenever I use a custom cell within an NSTableView, and color the background different to the tables, there is a small white border (or whatever I set the background color of the table to be) around the cell, probably around 4px in height/width. Is there a way to remove this 'padding' so that the bottom of the previous row cell lines up exactly with the top of the current row cell ? Thanks, -Mic ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Delayed Undo Problem
I have a basic core data document based application (Hillegass 3rd Edition, Chapter 11, CarLot). With a single primary window every thing works. Then a second window is added with a generic master detail interface using the core data entity from the Interface Builder pallet. When making a change to the model in the second window, undo/redo in the main menu is not available until the primary window is clicked and brought to the front. I need the undo/redo menu to work regardless of which window is frontmost. Any thoughts as to how this can be done? Richard ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Small white border around custom cell in NSTableView ...
Hi Dave, I didn't notice that in the documentation ... but must admit with hindsight that I've spent more time looking in NSCell's documentations when I should have been looking at NSTableViews. Just checked in the online docs and this looks exactly what I'm after, thank you. Cheers, -Mic 2009/3/30 Dave Keck d...@docdave.com: Have you looked at setIntercellSpacing: ? Hi, Whenever I use a custom cell within an NSTableView, and color the background different to the tables, there is a small white border (or whatever I set the background color of the table to be) around the cell, probably around 4px in height/width. Is there a way to remove this 'padding' so that the bottom of the previous row cell lines up exactly with the top of the current row cell ? Thanks, -Mic ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Small white border around custom cell in NSTableView ...
On Mon, Mar 30, 2009 at 8:29 AM, Mic Pringle micprin...@gmail.com wrote: Is there a way to remove this 'padding' so that the bottom of the previous row cell lines up exactly with the top of the current row cell ? Have you tried looking at NSTableView's documentation? There's a way to set -intercellSpacing if that's really what you want to do. -- I.S. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: NSDates and natural language ...
Hello, Mic Pringle micprin...@gmail.com wrote: any frameworks/classes that have been released that allow you to return natural language from a date ? NSDateFormatter ? My firs answer on this list, l hope it's a good one... ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
MySQL-Cocoa database access
Hi Friends, I am communicating with the MySQL database through the SMySQL framework. I can open the database connection successfully. I can select the database too. When I send a query to read the max count in the primary key i get the value in return for the first time. Then I insert the new record in the database with the next count. I perform the above 2 tasks in the loop. In the second iteration itself my select query fails. Can anyone suggest why does this happen? I tried reconnecting the database in the loop. Also tried to add sleep for 1 second, but it's not worth for updating thousands of records. Please suggest some solution. Is anyone know the other framework which i can use for mysql-cocoa connection? Best Regards, Sparta... ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: NSDates and natural language ...
Hi Laurent, I don't think I can achieve what I'm looking for with NSDateFormatter unless I subclass it and implement my own mehtods, which is what I'm looking to avoid if there's already an existing project out there. Thanks for your response though. -Mic 2009/3/30 Laurent Demaret l...@ideaslb.net: Hello, Mic Pringle micprin...@gmail.com wrote: any frameworks/classes that have been released that allow you to return natural language from a date ? NSDateFormatter ? My firs answer on this list, l hope it's a good one... ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: [BUG?] - [NSLayoutManager usedRectForTextContainer:] returns incorrect value
I'm running the code below. I have a single NSWindow with a checkbox and a button. In the awakeFromNib method of the main controller, I change the attribute of the checkbox string. In the compute: method, I compute the height requested to display a string for a specific font and maximum width. If I run this code as is, I get 17.0 as the required height. That's incorrect. If I comment the awakeFromNib code, I get 34.0f as the required height. That's correct. Is this the code exactly as it is in the app? e.g. compute: doesn't depend in any way on the values you set in -awakeFromNib? (I think this is your complaint, but I'm just verifying.) Not that this fixes your problem, but -[NSAttributedString boundingRectWithSize:options:] would probably be a bit easier for you to use. -Ben ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: ack no class
Maybe start up that generated app in gdb with a breakpoint set on NSLog? When it breaks you could look at the backtrace. That may at least tell you where the message is being generated, which may then tell you why. On Mar 29, 2009, at 3:26 PM, Mark Sibly wrote: I'm the author of BlitzMax, a multi-platform 'basic like' compiler. I've recently had a few reports that apps generated by the Mac version are producing a mysterious ack no class error when they start up - similar to this: 2009-03-24 22:26:14.460 test[10329:717] ack no class This appears to be written to 'stderr' and is occuring somewhere between [NSApp run] and the [applicationDidFinishLaunching] method in the app delegate - ie: it appears to be somewhere inside OsX/Cocoa. I have been unable to reproduce this myself, but it's occurring on at least one other machine with an identical config to mine - an Intel Mac with OS X 10.5.6. Has anyone else encountered this? From the few similar cases I've found via google, Safari beta4 has been suggested as a cause but I have that installed and am not getting this error. It's not really a biggy, as it doesn't seem to affect the app in any way, it's just pretty ugly for users of an apparently 'basic like' language. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Delayed Undo Problem
On Mar 30, 2009, at 5:55 AM, Richard Somers wrote: I have a basic core data document based application (Hillegass 3rd Edition, Chapter 11, CarLot). With a single primary window every thing works. Then a second window is added with a generic master detail interface using the core data entity from the Interface Builder pallet. When making a change to the model in the second window, undo/redo in the main menu is not available until the primary window is clicked and brought to the front. I need the undo/redo menu to work regardless of which window is frontmost. Any thoughts as to how this can be done? This FAQ might help: http://developer.apple.com/documentation/Cocoa/Conceptual/CoreData/Articles/cdFAQ.html#/ /apple_ref/doc/uid/TP40001802-244036 Keary Suska Esoteritech, Inc. Demystifying technology for your home or business ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Properties and the runtime
On Mon, Mar 30, 2009 at 1:06 AM, Luke the Hiesterman luket...@apple.com wrote: Up to this point, I've thought of properties as syntactic sugar for method calls. That is myObject.size should compile the same as [myObject size] unless of course a custom getter is set in the property declaration, then it would compile the same as if I had called that getter. What makes me question this is that there's apparently a need for dealing with properties at the runtime level, as discussed in http://developer.apple.com/DOCUMENTATION/Cocoa/Conceptual/ObjCRuntimeGuide/Articles/ocrtPropertyIntrospection.html I can't think of anything about properties that needs to be dealt with at runtime. My understanding has it that all information necessary for what properties do is available at compile time. E.g. the method to call, return types, how to compile synthesized properties using copy, retain, assign, nonatomic, and also whether to throw an error if something is readonly. So, then, my question is, what about using properties requires a runtime component? To me it feels like everything could be handled by the compiler. I think what you're missing is that the runtime has a lot of information available through APIs that aren't strictly necessary at runtime. For example, you can get a list of method names and argument/return types, or a list of ivar names and types, even though none of this stuff is needed to send a message or access an ivar. This sort of metadata is provided just for the benefit of other code. For example, the method/ivar information is used by Cocoa to implement things like key/value coding. You can use it yourself for your own purposes. As far as I know, Cocoa doesn't use the property info for anything at the moment, but it's there just so that you can use it if you have a use for it. And one last note: don't mix up the dot syntax with properties. The API whose documentation you've linked to is about @property stuff. The dot syntax is just a funny way to message getters and setters. Other than the fact that the dot syntax is commonly used with getters and setters declared with @property, they are completely unrelated. Mike ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Best Strategy to Control iTunes
I'm currently developing an App in iTunes, and I'm new to Cocoa and the entire Mac development world. So far, things are looking great. I have few questions, about which is the best strategy to follow in order to accomplish some tasks. This is a special purpose app, in a controlled environment. * Open iTunes if it's not already open. - Is using NSWorkSpace the best way to launch iTunes? Or should I use a different method? What ar the side effects if the application was already running? - How can I detect if iTunes is not responding? I'd like to force quit it, and open it again - In a nutshell, I'd like iTunes to be open all times, and responsive, how can I guarentee this? * Communcation with iTunes - What's the best interface to use? Running Apple Script through osa (by shell invocation) inside my app? AppleScript-Cocoa bridge? Any other methods? - It's known that if any dialog is open in iTunes it freezes any communication through the scriptable interface, how can I detect that and put all my messages in a queue, so that when iTunes is responsive, I can send my messages? Thanks in advance, Ammar ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Best Strategy to Control iTunes
Hi Ammar, 2009/3/30 Ammar Ibrahim ammar.ibra...@gmail.com I'm currently developing an App in iTunes, and I'm new to Cocoa and the entire Mac development world. So far, things are looking great. I have few questions, about which is the best strategy to follow in order to accomplish some tasks. This is a special purpose app, in a controlled environment. * Open iTunes if it's not already open. - Is using NSWorkSpace the best way to launch iTunes? Or should I use a different method? What ar the side effects if the application was already running? Using NSWorkspace's -launchApplication: is fine. If the app was already running when you called it, the method won't do anything, as you can read from the documentation. - How can I detect if iTunes is not responding? I'd like to force quit it, and open it again I'm not sure you can actually do that. - In a nutshell, I'd like iTunes to be open all times, and responsive, how can I guarentee this? Just praying. :-) Apple should care about that, not you. * Communcation with iTunes - What's the best interface to use? There are many approaches but if you don't tell us what are your purposes we can't tell you wich approach is the best for your use. However, i suggest googling for ScriptingBridge. - It's known that if any dialog is open in iTunes it freezes any communication through the scriptable interface, how can I detect that and put all my messages in a queue, so that when iTunes is responsive, I can send my messages? What kind of task are you trying to accomplish? Are you sure you have to know whether a dialog is open in iTunes? AFAIK you can't do anything similar, in any application. Thanks in advance, Ammar ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/luca.pazzerello%40gmail.com This email sent to luca.pazzere...@gmail.com -- --Luca C. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: ack no class
On Mar 29, 2009, at 3:26 PM, Mark Sibly wrote: I've recently had a few reports that apps generated by the Mac version are producing a mysterious ack no class error when they start up - similar to this: 2009-03-24 22:26:14.460 test[10329:717] ack no class This appears to be written to 'stderr' and is occuring somewhere between [NSApp run] and the [applicationDidFinishLaunching] method in the app delegate - ie: it appears to be somewhere inside OsX/Cocoa. I have been unable to reproduce this myself, but it's occurring on at least one other machine with an identical config to mine - an Intel Mac with OS X 10.5.6. Has anyone else encountered this? From the few similar cases I've found via google, Safari beta4 has been suggested as a cause but I have that installed and am not getting this error. This isn't obviously coming from Apple's code. I'm guessing it's printed by some plugin or haxie or something. Perhaps it's a web browser extension or add-on that is confused by changes in Safari 4. Compare the installed software on your machine and the reproducible case you found. You can use `info shared` in gdb or the Xcode debugger console to print the libraries loaded in the process; if this is the fault of a plugin then you'll see it on their machine but not yours. The breakpoint on NSLog suggestion also might help; that message is formatted like NSLog output. -- Greg Parker gpar...@apple.com Runtime Wrangler ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
NSTableColumn's sort key in Interface Builder
Hello,
I have a table view whose delegate's -
tableView:objectValueForTableColumn:row: returns an NSDictionary with
key value pairs that look like this for each of its columns (the
columns' cells are responsible for extracting some subset of this
dictionary to display to the user):
{
xkDateModified = 2008-01-15 23:03:00 -0800;
xkDisplayStatus = Awaiting Pickup;
xkFileName = stuff.graffle;
xkOwnerID = l...@testtest.com;
}
I'd like to make the File Name columns sortable, so I've set up the
file name column's sort key to be xkFileName and the selector to be
compare:. The sorting triangle appears in the header, but the column
isn't being sorted.
I have verified using an NSLog() inside of -
tableView:objectForTableColumn:row: that [resultObjectValue
valueForKeyPath:@xkFileName] returns the proper file names.
What am I doing wrong?
Mike
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Re: [BUG?] - [NSLayoutManager usedRectForTextContainer:] returns incorrect value
On Mar 30, 2009, at 3:55 PM, Benjamin Stiglitz wrote: I'm running the code below. I have a single NSWindow with a checkbox and a button. In the awakeFromNib method of the main controller, I change the attribute of the checkbox string. In the compute: method, I compute the height requested to display a string for a specific font and maximum width. If I run this code as is, I get 17.0 as the required height. That's incorrect. If I comment the awakeFromNib code, I get 34.0f as the required height. That's correct. Is this the code exactly as it is in the app? e.g. compute: doesn't depend in any way on the values you set in -awakeFromNib? (I think this is your complaint, but I'm just verifying.) Yes. Not that this fixes your problem, but -[NSAttributedString boundingRectWithSize:options:] would probably be a bit easier for you to use. I tried it. It apparently does not work for multi-line text. I should probably add that additional tests show that the bug appears in Mac OS X 10.4.11 but not in Mac OS X 10.5.6. I also thought of a ugly workaround (strike the text with a bezier path instead of relying on the Cocoa Text Engine) but if there is a better solution, I'm still interested. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Why does -[NSURLConnection start] crash?
Here's the sample code: http://lapcatsoftware.com/downloads/ConnectionStartCrash.m It crashes when calling this: _connection = [[NSURLConnection alloc] initWithRequest:request delegate:self startImmediately:NO]; [_connection start]; but not this: _connection = [[NSURLConnection alloc] initWithRequest:request delegate:self startImmediately:YES]; Of course, you wouldn't normally want to call [_connection start] immediately; in my tool, I was using performSelector:afterDelay: to call it, and the crash still occurs. Here's the backtrace: #0 0x97092152 in CFSetApplyFunction () #1 0x95b0cdad in CFNSchedulingSetScheduleSource () #2 0x95b375bb in RunLoopMultiplexer::sourceForScheduling () #3 0x95b3769a in RunLoopMultiplexer::schedule () #4 0x95b88d96 in URLConnectionClient::start () #5 0x1bd9 in -[MyConnectionDelegate connectWithCrash:] (self=0x103330, _cmd=0x1f5c, shouldCrash=1 '\001') at /Users/jeff/ Documents/Programming/TestProjects/ConnectionStartCrash/ ConnectionStartCrash.m:24 #6 0x1d38 in main (argc=1, argv=0xb694) at /Users/jeff/ Documents/Programming/TestProjects/ConnectionStartCrash/ ConnectionStartCrash.m:50 The argument for cachePolicy: doesn't seem to matter, by the way. Am I missing something? Is there some run loop setup I need to perform? -Jeff ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: NSTableColumn's sort key in Interface Builder
On Mar 30, 2009, at 12:16 PM, Mike Manzano wrote:
Hello,
I have a table view whose delegate's -
tableView:objectValueForTableColumn:row: returns an NSDictionary
with key value pairs that look like this for each of its columns
(the columns' cells are responsible for extracting some subset of
this dictionary to display to the user):
{
xkDateModified = 2008-01-15 23:03:00 -0800;
xkDisplayStatus = Awaiting Pickup;
xkFileName = stuff.graffle;
xkOwnerID = l...@testtest.com;
}
I'd like to make the File Name columns sortable, so I've set up
the file name column's sort key to be xkFileName and the selector to
be compare:. The sorting triangle appears in the header, but the
column isn't being sorted.
I have verified using an NSLog() inside of -
tableView:objectForTableColumn:row: that [resultObjectValue
valueForKeyPath:@xkFileName] returns the proper file names.
What am I doing wrong?
Nothing! You have to just sort your model array in the controller
yourself in:
- (void)tableView:(NSTableView *)tableView sortDescriptorsDidChange:
(NSArray *)oldDescriptors AVAILABLE_MAC_OS_X_VERSION_10_3_AND_LATER;
corbin
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Referencing a controller from one NIB to another ?
Following up on my question about putting several windows in a single NIB, as it seems it's a bad idea, I'm now confronted to binding controllers from one NIB to another. To give a quick example, take the TwoManyControllers sample : http://developer.apple.com/SampleCode/TwoManyControllers/index.html A main NSArrayController holds the list of top level elements to display them in an NSTable, each of those elements is itself an array, to which a secondary NSArrayController is bound. Problem, how do you do that when the first NSArrayController is in the main NIB, and the secondary one in the other ? I was looking for a way to define the first NSArrayController in both NIBs, except that in the 2nd NIB it would reference the one in the first, rather than being instantiated on its own, but I don't see how that's doable. Any ideas ? -- Guillaume http://telegraph-road.org ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Best Strategy to Control iTunes
For issue 1: I use NSWorkspace to handle this. Someone more knowledgeable than me might be able to answer your more detailed questions. When I launch my app, I check the sharedWorkspace to see if com.apple.iTunes is already running. If not, I launch it. For issue 2: There is a nifty framework for communicating with iTunes. It's called EyeTunes and has made my life much easier when working with iTunes. Just search for EyeTunes in Google and it should be the first hit. Mark On Mon, Mar 30, 2009 at 10:03 AM, Ammar Ibrahim ammar.ibra...@gmail.comwrote: I'm currently developing an App in iTunes, and I'm new to Cocoa and the entire Mac development world. So far, things are looking great. I have few questions, about which is the best strategy to follow in order to accomplish some tasks. This is a special purpose app, in a controlled environment. * Open iTunes if it's not already open. - Is using NSWorkSpace the best way to launch iTunes? Or should I use a different method? What ar the side effects if the application was already running? - How can I detect if iTunes is not responding? I'd like to force quit it, and open it again - In a nutshell, I'd like iTunes to be open all times, and responsive, how can I guarentee this? * Communcation with iTunes - What's the best interface to use? Running Apple Script through osa (by shell invocation) inside my app? AppleScript-Cocoa bridge? Any other methods? - It's known that if any dialog is open in iTunes it freezes any communication through the scriptable interface, how can I detect that and put all my messages in a queue, so that when iTunes is responsive, I can send my messages? Thanks in advance, Ammar ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/mwsuman%40gmail.com This email sent to mwsu...@gmail.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
opening a file
Hello! I am trying to open i file (the license for my app) when the user clicks on a menu item. i gave applescript a try but it did not work. any ideas? the website for the application is below. -James Gifford The Downloadermac Project: http://code.google.com/p/downloadermac Google Group: http://groups.google.com/group/downloadermac_googlecode E-Mail: skunkmeado...@gmail.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Launching a preference pane from inside a Cocoa app
I'm looking to map the Preferences... menu item to a system preference pane I created rather than the built-in application preferences. I know I can use AppleScript to launch my prefPane, but am wondering if there is a better, Cocoa way of doing it. Does anyone know the Apple way of launching a prefPane from a Cocoa app? Mark ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Adding UTI to document type causes NSDocumentController Misbehavior
The other day I was writing an AppleScript and noticed that AppleScript's 'choose file' command has a parameter 'of type' which requires a UTI. Since I'd like to be able to use this parameter in AppleScripts that choose my app's documents, I read up on UTI [1]. It all seems very simple, including the fact that if a suitable UTI does not exist, you can create your own. Since my document type is proprietary, I opened the editor on my project's app target and, in the Properties tab, in the line for my app's single document type, I saw that the UTI was blank. So I changed it to com.MyCompanyBlah.Blah. The results of this: 1. In my app's Info.plist, in the CFBundleDocumentTypes, in the single array for my single document type, there was added a key LSItemContentTypes, an array containing a single string, com.MyCompanyBlah.Blah. Per documentation, this is expected. 2. Before adding the UTI, -[NSDocumentController defaultType] returned the Name of my single document type. After, it returns its UTI. This is odd -- seems like we've got some wires crossed here. Indeed... 3. During running of -[NSDocumentController openUntitledDocumentAndDisplay:error], for example, to create a new document, it raises an exception: *** -[NSPathStore2 stringByAppendingPathExtension:]: nil argument Remove the UTI from the Target's Properties and now new documents can now be created again. Why the strange reactions from NSDocumentController? Is this one of those situations where I need to kick Launch Services in the pants or something like that? Sincerely, Jerry Krinock [1] http://developer.apple.com/macosx/uniformtypeidentifiers.html ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Launching a preference pane from inside a Cocoa app
On Mar 30, 2009, at 11:17 AM, Mark Suman wrote: Does anyone know the Apple way of launching a prefPane from a Cocoa app? Yes. (If you were wondering _how_ to do it, then all you need to do is open the preference pane using NSWorkspace or Launch Services. System Preferences will then display the pane.) Nick Zitzmann http://www.chronosnet.com/ ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
[SOLVED] Re: NSTableColumn's sort key in Interface Builder
Doh!
On Mar 30, 2009, at 1:00 PM, Corbin Dunn wrote:
On Mar 30, 2009, at 12:16 PM, Mike Manzano wrote:
Hello,
I have a table view whose delegate's -
tableView:objectValueForTableColumn:row: returns an NSDictionary
with key value pairs that look like this for each of its columns
(the columns' cells are responsible for extracting some subset of
this dictionary to display to the user):
{
xkDateModified = 2008-01-15 23:03:00 -0800;
xkDisplayStatus = Awaiting Pickup;
xkFileName = stuff.graffle;
xkOwnerID = l...@testtest.com;
}
I'd like to make the File Name columns sortable, so I've set up
the file name column's sort key to be xkFileName and the selector
to be compare:. The sorting triangle appears in the header, but the
column isn't being sorted.
I have verified using an NSLog() inside of -
tableView:objectForTableColumn:row: that [resultObjectValue
valueForKeyPath:@xkFileName] returns the proper file names.
What am I doing wrong?
Nothing! You have to just sort your model array in the controller
yourself in:
- (void)tableView:(NSTableView *)tableView sortDescriptorsDidChange:
(NSArray *)oldDescriptors AVAILABLE_MAC_OS_X_VERSION_10_3_AND_LATER;
corbin
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Re: Processing data maintained with Core Data
Thanks to all for your suggestions. On 27-Mar-2009, at 18:09, Quincey Morris wrote: the key question seems to be: what is the thread safety model of your existing code? Generating audio from parameters and file lists held by a different thread seems disaster-prone, so presumably your code doesn't do that, but you also suggest you currently don't have 2 copies of the data, so maybe your code *does* do that. My code currently doesn't *do* anything. Not on Mac OS. Not yet. I suppose one could argue that other implementations have two copies of the UI data--one maintained by the UI, with the audio thread retrieving the data it needs at the beginning of its processing loop (ie, a second copy). It's just the second copy isn't 'maintained' per se... it's re-read each time through the audio processing loop. Based on the information you've provided so far, I'd suggest you snapshot your data model (into a C struct) and pass it off to your background processing thread, where is can be used by your nice, tested C code. This may be the direction I'll take. Just noticed this list replies to sender, not to the list. Duly noted. One (hopefully) last thing… On 28-Mar-2009, at 7:04, Ben Trumbull wrote: Given your existing code base, and RT constraints, I would suggest you consider pushing changes over to the RT thread in batches. Basically, update the configuration the RT thread is using in response to the NSManagedObjectContextDidSaveNotification. It's sinking in that this might be an even better approach. Is there any sample code available demonstrating this technique? -- P. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
How can I draw an election map?
I am starting a new project that involves simulating various US election results. I want to plot the results using an election map similar to the ones that were all over the web during last year¹s election. However, I would like to do this in Cocoa/Objective-C rather than having to learn Python or Java. I am looking for advice on how to get started, since I have done only very rudimentary graphics stuff up to now. Basically there are two pieces of the puzzle: (1) how to get the blank map into my program, and (2) how to dynamically fill the complex shapes that constitute the map. I have blank maps I can use, and I suppose I could convert them into pretty much any graphics format (I am thinking EPS is probably best). Once I have the map in place I need to do the equivalent of a ³fill² command in the various places to put the right color in the right state outline. At this stage, I don¹t even know what classes I should be researching (NSBezier path? CALayer?), so any advice, no matter how general would be really welcome. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Best Strategy to Control iTunes
* Communcation with iTunes - What's the best interface to use? There are many approaches but if you don't tell us what are your purposes we can't tell you wich approach is the best for your use. However, i suggest googling for ScriptingBridge. My application will be adding/removing tracks to iTunes. I will not be controlling playback or anything like that, it's mainly to manipulate the database and playlists. - It's known that if any dialog is open in iTunes it freezes any communication through the scriptable interface, how can I detect that and put all my messages in a queue, so that when iTunes is responsive, I can send my messages? What kind of task are you trying to accomplish? Are you sure you have to know whether a dialog is open in iTunes? AFAIK you can't do anything similar, in any application. If I want to add a track to iTunes, I need to make sure iTunes is responsive. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
[MEET] April CocoaHeads Mac Developer Meetings
Greetings, CocoaHeads is an international Mac programmer's group. Meetings are free and open to the public. We specialize in Cocoa, but everything Mac programming related is welcome. Upcoming meetings: Canada Halifax- Thursday, April 9, 2009 18:00. Toronto- Tuesday, April 14, 2009 18:30. Germany Berlin- Thursday, April 9, 2009 19:00. Bonn- Thursday, April 16, 2009 19:00. Munich- Thursday, April 9, 2009 20:00. Mexico Mexico City- Thursday, April 16, 2009 17:00. South Africa Johannesburg- Thursday, April 2, 2009 18:30. Spain Barcelona- Friday, April 24, 2009 16:30. Sweden Stockholm- Monday, April 6, 2009 18:45. United States Atlanta- Thursday, April 9, 2009 19:00. Boston- Thursday, February 12, 2009 19:00. Boulder- Tuesday, April 14, 2009 07:00. Colorado Springs- Thursday, April 9, 2009 19:00. Des Monies- Thursday, April 9, 2009 19:00. Fayetteville- Thursday, April 9, 2009 19:00. Lake Forest- Wednesday, April 8, 2009 19:00. Nashville- Thursday, April 16, 2009 19:00. Philadelphia- Thursday, April 9, 2009 19:00. Pittsburgh- Thursday, April 9, 2009 19:30. St. Louis- Saturday, April 25, 2009 14:00. United Kingdom Swindon- Monday, April 6, 2009 20:00. Some chapters may have yet to post their meeting for next month. Meeting times may change. Locations and more information here: http://cocoaheads.org Also be sure to check for an NSCoder Night in your area: http://nscodernight.com/ Steve Silicon Valley CocoaHeads ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: (un)mounting volumes
Torsten Curdt wrote: How do I list all mounted volumes (and their mount points)? apropos mount man 3 getmntinfo man 2 getfsstat -- GG ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: (un)mounting volumes
On Mar 30, 2009, at 6:08 PM, Torsten Curdt wrote: How do I list all mounted volumes (and their mount points)? Well, since you're poking around in the File Manager, take a look at FSGetVolumeInfo. However, since this is cocoa-dev, I will also direct you to the - mountedLocalVolumePaths and -mountedRemovableMedia methods of NSWorkspace. I'll also point out the existence of the - unmountAndEjectDeviceAtPath: method. Cheers, Ken ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
EXC_BAD_ACCESS and NSAttributedString driving me crazy
I'm getting NSRTFDPboardType and NSRTFPboardType objects as NSData from the pasteboard and I'm storing them in a core data XML repository and getting them out again, and when necessary I'm converting them into NSAttributedString with initWithRTF or initWithRTFD. This mostly works but every now and then, actually quite often, this initWithRTF(D) crashes with EXC_BAD_ACCESS. (stack traces below). The thing is, I'm doing an md5Hash on the NSData objects every single time I store them and retrieve them just to make sure they are not corrupted, and the exact same NSData that is working one minute as an argument to initWithRTF(D), makes it crash later on. I'm using garbage collection, but I've solved a lot of GC problems and this doesn't seem similar. Has anyone got any thoughts? #00x95a82688 in objc_msgSend #10x933b0b26 in -[NSCFDictionary setObject:forKey:] #20x90824684 in -[NSRTFD setObject:forKey:] #30x908f3c2f in -[NSAKDeserializer deserializePList:] #40x908f3961 in -[NSDocumentDeserializer deserializeNewPList] #50x908f3753 in -[NSRTFD(NSSerializationSupport) initWithPasteboardDataRepresentation:] #60x908f2fe9 in -[NSFileWrapper initWithSerializedRepresentation:] #70x908f2e32 in -[NSRTFReader initWithRTFD:] #80x9070b9a7 in _NSReadAttributedStringFromURLOrData #90x90709943 in -[NSAttributedString(NSAttributedStringKitAdditions) initWithData:options:documentAttributes:error:] #100x908f2de2 in -[NSAttributedString(NSAttributedStringKitAdditions) initWithRTFD:documentAttributes:] .. #00x95a82688 in objc_msgSend #10x90894910 in processColor #20x9089395b in CharAttr #30x9088db34 in -[NSRTFReader attributedString] #40x9070bc03 in _NSReadAttributedStringFromURLOrData #50x90709943 in -[NSAttributedString(NSAttributedStringKitAdditions) initWithData:options:documentAttributes:error:] #60x9088c542 in -[NSAttributedString(NSAttributedStringKitAdditions) initWithRTF:documentAttributes:] . Program received signal: “EXC_BAD_ACCESS”. Enjoy a better web experience. Upgrade to the new Internet Explorer 8 optimised for Yahoo!7. Get it now. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: How can I draw an election map?
On Mar 30, 2009, at 5:07 PM, Tobias Zimmerman wrote: I am starting a new project that involves simulating various US election results. I want to plot the results using an election map similar to the ones that were all over the web during last year’s election. However, I would like to do this in Cocoa/Objective-C rather than having to learn Python or Java. I did something, java sorry, based on... http://www.cs.princeton.edu/introcs/35purple/ which for the mapping uses... Data sources. We collect state and county border data from the US Census TIGER database. [ documentation ] The file USA.txt contains each state (in the Continental US) and its corresponding polygon (s). There are 104 polygons in total. The files NJ.txt contain each county in the given state. There are 3325 polygons in total over all states. If you look at the java you can see how it's routines for drawing and filling, etc. the polygons work. It was a little buggy in translating mouse position to map coordinates as I remember. Which I wanted for displaying little tooltip type popup windows when you did mouse over states or counties. For one thing to display the state or county name which it had no provision for and I didn't try to add. You probably would have to rework that if you went with ObjC anyhow. I still haven't finished to final result version of mine but the shareware version for the 2008 presidential elections is at... http://www195.pair.com/mik3hall/ It didn't exactly make me wealthy and I was a little disappointed in not even getting much feedback. But it had some downloads and I'd still like to find the time to come up with a final 2008 version and maybe add some other political content of some sort. Something with information on what's up in Washington that would allow for some degree of user interaction to make users views and opinions part of the software somehow. Mike Hallhallmike at att dot net http://www.geocities.com/mik3hall http://sourceforge.net/projects/macnative smime.p7s Description: S/MIME cryptographic signature ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Why does -[NSURLConnection start] crash?
On 31/03/2009, at 3:32 , Jeff Johnson wrote: Here's the sample code: http://lapcatsoftware.com/downloads/ConnectionStartCrash.m It crashes when calling this: _connection = [[NSURLConnection alloc] initWithRequest:request delegate:self startImmediately:NO]; [_connection start]; Google for NSURLConnection startImmediately Second link: http://veys.com/2008/08/17/nsurlconnection-startimmediatelyno-boom/ Apparently when not using the simpler initWithRequest:delegate:, or even startImmediately:YES, the connection does not get scheduled in the current run loop. And again apparently, this causes unhappiness to occur when you eventually get around to calling start. Simple fix, just stuff it in the current run loop before calling start and everyone gets along just fine. [c scheduleInRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode]; Enjoy, Peter. -- Run macros from your iPhone with Keyboard Maestro Control! or take a break with Derzle for your iPhone Keyboard Maestro http://www.keyboardmaestro.com/ Macros for your Mac Aragom Space War http://www.stairways.com/iphone/aragom Don't get killed! Derzle http://www.stairways.com/iphone/derzle Enjoy a relaxing puzzle. http://www.stairways.com/ http://download.stairways.com/ ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: EXC_BAD_ACCESS and NSAttributedString driving me crazy
Chris Idou (idou...@yahoo.com) on 2009-03-30 8:25 PM said: I'm getting NSRTFDPboardType and NSRTFPboardType objects as NSData from the pasteboard and I'm storing them in a core data XML repository and getting them out again, and when necessary I'm converting them into NSAttributedString with initWithRTF or initWithRTFD. This mostly works but every now and then, actually quite often, this initWithRTF(D) crashes with EXC_BAD_ACCESS. (stack traces below). The thing is, I'm doing an md5Hash on the NSData objects every single time I store them and retrieve them just to make sure they are not corrupted, and the exact same NSData that is working one minute as an argument to initWithRTF(D), makes it crash later on. I'm using garbage collection, but I've solved a lot of GC problems and this doesn't seem similar. Has anyone got any thoughts? What else have you tried? http://developer.apple.com/technotes/tn2004/tn2124.html http://www.sealiesoftware.com/blog/archive/2008/09/22/ objc_explain_So_you_crashed_in_objc_msgSend.html ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: EXC_BAD_ACCESS and NSAttributedString driving me crazy
Thanks for the links. If I run with libgmalloc, it dies the same way, but seemingly much quicker: Program received signal EXC_BAD_ACCESS, Could not access memory. Reason: KERN_PROTECTION_FAILURE at address: 0x0032 0x95a82688 in objc_msgSend () (gdb) where #0 0x95a82688 in objc_msgSend () #1 0x90894910 in processColor () #2 0x9089395b in CharAttr () #3 0x9088db34 in -[NSRTFReader attributedString] () #4 0x9070bc03 in _NSReadAttributedStringFromURLOrData () #5 0x90709943 in -[NSAttributedString(NSAttributedStringKitAdditions) initWithData:options:documentAttributes:error:] () #6 0x9088c542 in -[NSAttributedString(NSAttributedStringKitAdditions) initWithRTF:documentAttributes:] () I also found a posting with someone with the exact same problem: http://www.mail-archive.com/cocoa-dev@lists.apple.com/msg27895.html I'm not sure what else to try. I'd be inclined to jump to the conclusion of blaming Apple, if it wasn't that this API must be a very widely called one. From: Sean McBride cwat...@cam.org To: Chris Idou idou...@yahoo.com; cocoa-dev@lists.apple.com Sent: Tuesday, 31 March, 2009 2:43:18 PM Subject: Re: EXC_BAD_ACCESS and NSAttributedString driving me crazy Chris Idou (idou...@yahoo.com) on 2009-03-30 8:25 PM said: I'm getting NSRTFDPboardType and NSRTFPboardType objects as NSData from the pasteboard and I'm storing them in a core data XML repository and getting them out again, and when necessary I'm converting them into NSAttributedString with initWithRTF or initWithRTFD. This mostly works but every now and then, actually quite often, this initWithRTF(D) crashes with EXC_BAD_ACCESS. (stack traces below). The thing is, I'm doing an md5Hash on the NSData objects every single time I store them and retrieve them just to make sure they are not corrupted, and the exact same NSData that is working one minute as an argument to initWithRTF(D), makes it crash later on. I'm using garbage collection, but I've solved a lot of GC problems and this doesn't seem similar. Has anyone got any thoughts? What else have you tried? http://developer.apple.com/technotes/tn2004/tn2124.html http://www.sealiesoftware.com/blog/archive/2008/09/22/ objc_explain_So_you_crashed_in_objc_msgSend.html Enjoy a safer web experience. Upgrade to the new Internet Explorer 8 optimised for Yahoo!7. Get it now. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: EXC_BAD_ACCESS and NSAttributedString driving me crazy
Can you try temporarily disabling garbage collection around the unarchiving of RTFD, and see if it helps? [[NSGarbageCollector defaultCollector] disable]; ... unarchive your RTFD ... [[NSGarbageCollector defaultCollector] enable]; Ali On Mar 30, 2009, at 5:25 PM, Chris Idou wrote: I'm getting NSRTFDPboardType and NSRTFPboardType objects as NSData from the pasteboard and I'm storing them in a core data XML repository and getting them out again, and when necessary I'm converting them into NSAttributedString with initWithRTF or initWithRTFD. This mostly works but every now and then, actually quite often, this initWithRTF(D) crashes with EXC_BAD_ACCESS. (stack traces below). The thing is, I'm doing an md5Hash on the NSData objects every single time I store them and retrieve them just to make sure they are not corrupted, and the exact same NSData that is working one minute as an argument to initWithRTF(D), makes it crash later on. I'm using garbage collection, but I've solved a lot of GC problems and this doesn't seem similar. Has anyone got any thoughts? #00x95a82688 in objc_msgSend #10x933b0b26 in -[NSCFDictionary setObject:forKey:] #20x90824684 in -[NSRTFD setObject:forKey:] #30x908f3c2f in -[NSAKDeserializer deserializePList:] #40x908f3961 in -[NSDocumentDeserializer deserializeNewPList] #50x908f3753 in -[NSRTFD(NSSerializationSupport) initWithPasteboardDataRepresentation:] #60x908f2fe9 in -[NSFileWrapper initWithSerializedRepresentation:] #70x908f2e32 in -[NSRTFReader initWithRTFD:] #80x9070b9a7 in _NSReadAttributedStringFromURLOrData #90x90709943 in -[NSAttributedString(NSAttributedStringKitAdditions) initWithData:options:documentAttributes:error:] #100x908f2de2 in - [NSAttributedString(NSAttributedStringKitAdditions) initWithRTFD:documentAttributes:] .. #00x95a82688 in objc_msgSend #10x90894910 in processColor #20x9089395b in CharAttr #30x9088db34 in -[NSRTFReader attributedString] #40x9070bc03 in _NSReadAttributedStringFromURLOrData #50x90709943 in -[NSAttributedString(NSAttributedStringKitAdditions) initWithData:options:documentAttributes:error:] #60x9088c542 in -[NSAttributedString(NSAttributedStringKitAdditions) initWithRTF:documentAttributes:] . Program received signal: “EXC_BAD_ACCESS”. Enjoy a better web experience. Upgrade to the new Internet Explorer 8 optimised for Yahoo!7. Get it now. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/aozer%40apple.com This email sent to ao...@apple.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: EXC_BAD_ACCESS and NSAttributedString driving me crazy
That's a good trick to know! When I bracket the calls thus, it crashes in a different but similar place: #00x95a82688 in objc_msgSend #10x90894910 in processColor #20x9089395b in CharAttr #30x9088db34 in -[NSRTFReader attributedString] #40x9070bc03 in _NSReadAttributedStringFromURLOrData #50x90709943 in -[NSAttributedString(NSAttributedStringKitAdditions) initWithData:options:documentAttributes:error:] #60x9088c542 in -[NSAttributedString(NSAttributedStringKitAdditions) initWithRTF:documentAttributes:] #70x908e6f25 in +[_NSRTFPboardTypeConverter pasteboard:provideDataForType:] #80x908e6b58 in __NSPasteboardProvideData #90x918dd120 in __CFPasteboardResolvePromiseForItemLocal #100x918e0680 in CFPasteboardCopyData #110x9086763e in -[NSPasteboard _dataWithoutConversionForType:] #120x9086748a in -[NSPasteboard dataForType:] And then if I bracket the call to dataForType: as well, the crashes stop happening. I'm relieved to know I at least have a workaround. Does this tend to indicate some kind of Apple GC bug? From: Ali Ozer ao...@apple.com To: Chris Idou idou...@yahoo.com Cc: Cocoa Dev cocoa-dev@lists.apple.com Sent: Tuesday, 31 March, 2009 4:12:55 PM Subject: Re: EXC_BAD_ACCESS and NSAttributedString driving me crazy Can you try temporarily disabling garbage collection around the unarchiving of RTFD, and see if it helps? [[NSGarbageCollector defaultCollector] disable]; ... unarchive your RTFD ... [[NSGarbageCollector defaultCollector] enable]; Ali On Mar 30, 2009, at 5:25 PM, Chris Idou wrote: I'm getting NSRTFDPboardType and NSRTFPboardType objects as NSData from the pasteboard and I'm storing them in a core data XML repository and getting them out again, and when necessary I'm converting them into NSAttributedString with initWithRTF or initWithRTFD. This mostly works but every now and then, actually quite often, this initWithRTF(D) crashes with EXC_BAD_ACCESS. (stack traces below). The thing is, I'm doing an md5Hash on the NSData objects every single time I store them and retrieve them just to make sure they are not corrupted, and the exact same NSData that is working one minute as an argument to initWithRTF(D), makes it crash later on. I'm using garbage collection, but I've solved a lot of GC problems and this doesn't seem similar. Has anyone got any thoughts? #00x95a82688 in objc_msgSend #10x933b0b26 in -[NSCFDictionary setObject:forKey:] #20x90824684 in -[NSRTFD setObject:forKey:] #30x908f3c2f in -[NSAKDeserializer deserializePList:] #40x908f3961 in -[NSDocumentDeserializer deserializeNewPList] #50x908f3753 in -[NSRTFD(NSSerializationSupport) initWithPasteboardDataRepresentation:] #60x908f2fe9 in -[NSFileWrapper initWithSerializedRepresentation:] #70x908f2e32 in -[NSRTFReader initWithRTFD:] #80x9070b9a7 in _NSReadAttributedStringFromURLOrData #90x90709943 in -[NSAttributedString(NSAttributedStringKitAdditions) initWithData:options:documentAttributes:error:] #100x908f2de2 in -[NSAttributedString(NSAttributedStringKitAdditions) initWithRTFD:documentAttributes:] .. #00x95a82688 in objc_msgSend #10x90894910 in processColor #20x9089395b in CharAttr #30x9088db34 in -[NSRTFReader attributedString] #40x9070bc03 in _NSReadAttributedStringFromURLOrData #50x90709943 in -[NSAttributedString(NSAttributedStringKitAdditions) initWithData:options:documentAttributes:error:] #60x9088c542 in -[NSAttributedString(NSAttributedStringKitAdditions) initWithRTF:documentAttributes:] . Program received signal: “EXC_BAD_ACCESS”. Enjoy a better web experience. Upgrade to the new Internet Explorer 8 optimised for Yahoo!7. Get it now. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/aozer%40apple.com This email sent to ao...@apple.com Enjoy a better web experience. Upgrade to the new Internet Explorer 8 optimised for Yahoo!7. Get it now. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
