Re: Unnecessary Boolean Warning
One important difference for instance is that if you write if (a() b()), both a() and b() will always be executed, while if you write if (a() b()), b() will be executed only if a() is true. The C language doesn't make any guarantees about that. While this optimisation is to be expected, the order of execution (left to right) and the optimisation (b not executed) is implementation dependent. This is a classic question for coding job interviews. As has been pointed out, it most certainly does. This is important because it allows you to write stuff like if (index maxIndex isValid(array[index])) ... In languages which don't guarantee short-circuiting, the array could be indexed out-of-bounds. On a related note, somebody said he would be less confused if C didn't have two different kind of booleans. In fact, it has none at all. It is part of the idiom that you should read if(a) as if a is non-zero and not as if a is true. Regards, Sander ___ 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 to Identify if the device is used in iAD supported Regions
Full disclosure: I don't use iAd, so this is based on WWDC recollection and doc lookup. The Test Advertisement I believe only displays when you are testing during development. Users will never see it. Keep the banner view hidden until you receive a bannerViewDidLoadAd: message in the ad delegate. Presumably this just won't get called in regions that don't support iAd. You could setup a timer to load from other ad networks if you don't receive an iAd within some predetermined period. (Sent from my iPad.) -- Conrad Shultz www.synthetiqsolutions.com On Aug 3, 2011, at 20:46, Sasikumar JP jps...@gmail.com wrote: I am planning to use iAD for my iOS application. As the iAD available only in USA,UK,France,Italia,Deutschland,España AppStores. I want to display iAD only for supported regions. This will avoid displaying Test Advertisement from iAD.I can use AdMob for all other regions. I am not sure, how to identify the iOS Device is used in supported region? Any help is highly appreciated. Thanks Sasikumar JP ___ 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/conrad%40synthetiqsolutions.com This email sent to con...@synthetiqsolutions.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: How to Identify if the device is used in iAD supported Regions
Cornad, I guess, Test Advertisement displays even your region App store does not support iAD. I have seen many application in my device displays Test Advertisement, as iAD not supported in my region. I agree with your approach,only if the delegate method(bannerViewDidLoadAd:) is not getting invoked for iAD not supported regions. But thats not the case, if Appstore supports iAD, it Displays real ad. otherwise it will display Test Ad. Either case your delegate method would be invoked. Any one can confirm the behaviour of iAD in the not supported region. Thanks Sasikumar JP On Thu, Aug 4, 2011 at 1:33 PM, Conrad Shultz con...@synthetiqsolutions.com wrote: Full disclosure: I don't use iAd, so this is based on WWDC recollection and doc lookup. The Test Advertisement I believe only displays when you are testing during development. Users will never see it. Keep the banner view hidden until you receive a bannerViewDidLoadAd: message in the ad delegate. Presumably this just won't get called in regions that don't support iAd. You could setup a timer to load from other ad networks if you don't receive an iAd within some predetermined period. (Sent from my iPad.) -- Conrad Shultz www.synthetiqsolutions.com On Aug 3, 2011, at 20:46, Sasikumar JP jps...@gmail.com wrote: I am planning to use iAD for my iOS application. As the iAD available only in USA,UK,France,Italia,Deutschland,España AppStores. I want to display iAD only for supported regions. This will avoid displaying Test Advertisement from iAD.I can use AdMob for all other regions. I am not sure, how to identify the iOS Device is used in supported region? Any help is highly appreciated. Thanks Sasikumar JP ___ 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/conrad%40synthetiqsolutions.com This email sent to con...@synthetiqsolutions.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: Long delay of NSPopUpButton first click
Drawing item titles into image and caching them for later use works nice. But I have noticed unacceptable side effect. Normally, when menu is displayed you can press any letter key, and menu will scroll to the first item, which title starts with that letter. In my case , NSMenuItems does not have titles and that does not work. Looking for workaround to maintain this functionality. ___ 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: NSTableView with autoResizing Column: How to trigger auto-resizing after setFrame:?
On 3 Aug 2011, at 19:20, Quincey Morris wrote: On Aug 3, 2011, at 05:41, Daniel Vollmer wrote: Now, what I'm trying to do is resize the tableview horizontally inside the scrollview *without* changing the size of the window itself[1]. I can do that easily enough by modifying its frame, but this seems to ignore the column auto-resizing and leaves the column at the original width. Of course, I could just set the new column width explicitly, but I'm trying use the autoresizing so that I can use NSViewAnimation to animate this transition. Any ideas on why the column autosizing doesn't work when setting the frame directly? I tried calling various NSView and NSControl methods to force a relayout after changing the size, but had no success. By modifying the frame of what? You should be changing the scroll view frame, but you make it sound like you're changing the table view frame. The frame of the tableview. I want the scrollview to stay the same size, only to display half of twice as much content (i.e. display the left half of the original content in twice as much detail, with the ability to scroll over to the 2nd half). Also, check that you've enabled column resizing correctly in *both* places -- the column resizing behavior of the table view itself (it's a popup -- resize first column/resize last column/etc) AND the resizing behavior of the column (it's a checkbox prior to Xcode 4 IIRC, and a popup in Xcode 4). They are both enabled, and as mentioned before, the column resizing works fine when resizing the window itself (which in turn changes the size of the scrollView). Daniel. ___ 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: Correct way to use contextInfo with ARC
On Aug 3, 2011, at 8:38 PM, Kevin Bracey wrote:
Hi All,
A case of me not grasping C or/and ARC;-)
I'm trying to pass the NSMutableArray across the void to the didEndSelector
so I can access it if the user clicks ok.
/snippits
NSMutableArray *someInfo = [NSArray arrayWithObjects:@made , @it,
@across,. nil];
[holdAlert beginSheetModalForWindow:[self window] modalDelegate:self
didEndSelector:@selector( alertDidEnd:returnCode:contextInfo: )
contextInfo:?how to send someInfo?];
-(void)alertDidEnd:(NSAlert *)alert returnCode:(int)returnCode
contextInfo:(void *)contextInfo
{
// not happy maybe use a sheet and block
NSMutableArray *holdArray = ?contextInfo?;
what magic do I use to pass it in and get it out;-)
Well, I can’t test this directly, since I haven’t been able to play with ARC
yet due to Apple not having graced us lowly second-class-citizen Mac developers
with the Xcode 4.2 beta, but according to the docs, you should be able to do
this by casting the array to (__bridge_retained void *) when you give it to
beginSheetModalForWindow:modalDelegate:didEndSelector:contextInfo:, and then
casting it to (__bridge_transfer NSMutableArray *) in your
alertDidEnd:returnCode:contextInfo: method.
Here’s the documentation page I’m referring to:
http://clang.llvm.org/docs/AutomaticReferenceCounting.html#objects.operands.casts
Charles___
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CFStringCreateWithBytes and Endianness
Hi All, I want to create a CFString using function CFStringCreateWithBytes. CFStringRef CFStringCreateWithBytes ( CFAllocatorRef alloc, const UInt8 *bytes, CFIndex numBytes, CFStringEncoding encoding, Boolean isExternalRepresentation ); I suspect, the encoding parameter refers to the encoding of the source string. My source buffer containing the string can be encoded in UTF-16LE or UTF-16BE. I don't want to have a BOM in the resulting CFString - and the source buffer does not contain it either. So, I would create it like: CFStringRef str = CFStringCreateWithBytes(NULL, buffer, length, encoding, false); where encoding corresponds to either UTF-16LE or UTF-16-BE of the source. That is, parameter encoding equals either kCFStringEncodingUTF16LE or kCFStringEncodingUTF16BE respectively. The documentation does not tell me which source encoding would be the most preferred to initialize the CFString in the most efficient manner. I would guess this is UTF-16LE on Intel machines. So, the question is, which one would be the most efficient - and how can I figure this out at compile- /runtime? (I know how to figure the endianness of the machine) And what happens if I just specify kCFStringEncodingUTF16 ? Is then the source encoding assumed to be in host endianness? Or UTF-16BE as the Unicode Standard suggests? Thanks for help! Regards Andreas ___ 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: CFStringCreateWithBytes and Endianness
On 4 Aug 2011, at 6:49 AM, Andreas Grosam wrote: I want to create a CFString using function CFStringCreateWithBytes. CFStringRef CFStringCreateWithBytes ( CFAllocatorRef alloc, const UInt8 *bytes, CFIndex numBytes, CFStringEncoding encoding, Boolean isExternalRepresentation ); I suspect, the encoding parameter refers to the encoding of the source string. The thing to bear in mind is that it is the encoding of the _source_ string. It's a fact about the bytes you're importing. Facts about the data aren't changeable at runtime, so there isn't a choice you can make when you call CFStringCreateWithBytes. My source buffer containing the string can be encoded in UTF-16LE or UTF-16BE. I don't want to have a BOM in the resulting CFString - and the source buffer does not contain it either. CFString is an opaque type. You don't know how it stores its characters internally, and you shouldn't have to care. It might store endianness as a BOM in a character buffer, or as a flag in an associated data structure, or it might have a preferred internal endianness that you never see from the outside. It may or may not store the characters as UTF-16 (either endianness) at all. These details may vary by architecture, version of Core Foundation, and even from string to string. [T]he need for a BOM arises in the context of text interchange, rather than in normal text processing within a closed environment. — Wikipedia, Byte order mark, http://en.wikipedia.org/wiki/Byte_order_mark The documentation does not tell me which source encoding would be the most preferred to initialize the CFString in the most efficient manner. I would guess this is UTF-16LE on Intel machines. If you mean that you have control over how the bytes in the source data were originally written, little-endian may be a good choice, but it's only a guess, and guesses about the efficiency of opaque functions are worthless. If Core Foundation doesn't always use UTF-16 internally, there may be a conversion anyway, and the efficiency of the source is at most a minor consideration. If I were less lazy, I'd look at the source of CFLite, and know for sure. The best way to know, however is not to guess. Prepare your source text in both orders, and benchmark CFStringCreateWithBytes each way. That way, you can get the answer that matches your actual use. You may find that byte order makes so little difference in speed that it needn't be a consideration. Wikipedia says that the Unicode standard says that if there is no BOM, you assume the byte stream is big-endian. So if your first priority is to avoid a BOM, your choice is made for you: Pass kCFStringEncodingUTF16BE. Correctness is a much bigger consideration than the presence of two bytes. One of my slogans is that it's a false economy to get the wrong answer as quickly as possible. However, assuming big-endian assumes you absolutely trust every writer of your source stream. If you accept a BOM, you'll be able to handle more inputs. Otherwise, try big-endian, and if CFStringCreateWithBytes returns NULL, try again with little-endian. And what happens if I just specify kCFStringEncodingUTF16 ? Is then the source encoding assumed to be in host endianness? Or UTF-16BE as the Unicode Standard suggests? Possibly CFStringCreateWithBytes tries it both ways, and accepts the way that doesn't error. Maybe, to favor the standard behavior, it tries big-endian first. I haven't looked at the source, and can't tell you for sure. The thing to do is _test_, with the kind of data you'll actually use, and you'll know. — F ___ 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
Question about sending to PHP from Obj-C
I have a little script sitting locally on my Mac (webserver). http://eric.domain.com/iOS_Log/logger.php: ? $myFile = yabba.txt; $fh = fopen($myFile,'a') or die(can't open file); $query = $_GET[string]; $stringData = $query.\n; fwrite($fh,$stringData); fclose($fh); ? I am simply trying to send the PHP a small string from my app on a device. I've seen examples of POST everywhere, but looking for GET. Of course if I do *http://eric.domain.com/iOS_Log/logger.php?string=Foo* in a browser it works fine. ___ 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: Telling Auto Save, No, I'm busy now
On 2011 Aug 01, at 08:14, Kevin Perry wrote: Canceling an autosave when -autosavingIsImplicitlyCancellable returns NO will cause problems with file coordination. Thank you, Kevin. I believe you and Jens on this. Indeed, when I close a document window, its document receives a saveToURL:ofType:forSaveOperation:completionHandler: message, and, as expected, -autosavingIsImplicitlyCancellable returns NO. If you absolutely cannot save when a non-cancellable autosave starts, it is OK to defer the autosave until you're ready, as long as you make sure to call the original completionHandler when you're done. Makes sense, but I'm getting a crash if I begin some operations and then hit the 'close' button on the window while the operations are in progress… I take the four parameters I receive in saveToURL:ofType:forSaveOperation:completionHandler: and put them into a dictionary in an NSOperation, and throw this operation onto the end my operation queue. (This project was written back in 10.5 so it does not use GCD.) When this final operation runs, I send this dictionary to a selector on the main thread. But the completion handler seems to contain a bomb at this point – it usually crashes upon receiving any message, not always in the same place. Often, it crashes when I send it to super's saveToURL:ofType:forSaveOperation:completionHandler:, which apparently tries to copy it, like this… #0 0x97c68987 in _Block_copy_internal #1 0x97c68bd8 in _Block_object_assign #2 0x97123a41 in __copy_helper_block_138 #3 0x97c67f86 in _Block_call_copy_helper #4 0x97c689d3 in _Block_copy_internal #5 0x97c68bd8 in _Block_object_assign #6 0x9713f43b in __copy_helper_block_40 #7 0x97c67f86 in _Block_call_copy_helper #8 0x97c689d3 in _Block_copy_internal #9 0x9bb22eae in _dispatch_Block_copy #10 0x9bb251ea in dispatch_async #11 0x9713ac9c in -[NSDocument performAsynchronousFileAccessUsingBlock:] #12 0x97123688 in -[NSDocument saveToURL:ofType:forSaveOperation:completionHandler:] Retaining the completionHandler a half dozen times, with no corresponding releases, before placing into the dictionary, does not help. So apparently it's not memory management. I also get a crash if I instead save using the old-fashioned method, and then invoke the completion handler manually… NSError* error = nil ; BOOL ok = [super saveToURL:url ofType:typeName forSaveOperation:saveOperation error:error] ; completionHandler(error) ; In this case, the saveToURL completes successfully, but it crashes when I invoke the completion handler. So I tried just forgetting the completion handler, commenting out that last line, but then I get a crash later, it looks like, when the dictionary is deallocced and the completion handler gets a CFRelease(). Finally, I tried just forgetting the completion handler, not even entering it into the dictionary. No crash. However, as you predicted… your application be blocked until the completionHandler is called I wasn't sure what you meant by that, since the main thread is not blocked. Actually, I can continue editing the document. However it hangs if I later try to close the document… #0 0x995d5c5e in semaphore_wait_trap #1 0x9bb26874 in _dispatch_semaphore_wait_slow #2 0x9bb26970 in dispatch_semaphore_wait #3 0x9713b135 in -[NSDocument performActivityWithSynchronousWaiting:usingBlock:] #4 0x97126cf4 in -[NSDocument canCloseDocumentWithDelegate:shouldCloseSelector:contextInfo:] #5 0x0018aca3 in -[MyDocument continueCanCloseWithInfo:] at MyDocument.m:456 or save the document… #0 0x995d5c5e in semaphore_wait_trap #1 0x9bb26874 in _dispatch_semaphore_wait_slow #2 0x9bb26970 in dispatch_semaphore_wait #3 0x9713b135 in -[NSDocument performActivityWithSynchronousWaiting:usingBlock:] #4 0x971205cd in -[NSDocument saveDocumentWithDelegate:didSaveSelector:contextInfo:] #5 0x971201e0 in -[NSDocument saveDocument:] #6 0x00186755 in -[MyDocument saveDocumentFinalAsAs:] at MyDocument.m:1651 What could it be about this completion handler object that causes it to become a bomb after sitting in a dictionary for a few seconds? Thank you, Jerry ___ 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: Question about sending to PHP from Obj-C
http://developer.apple.com/library/mac/#documentation/Cocoa/Reference/Foundation/Classes/NSString_Class/Reference/NSString.html%23//apple_ref/occ/instm/NSString/writeToURL:atomically:encoding:error: I'd guess that you could create an NSURL object with the full GET string, then write an empty string to that url. Something like this completely off-the-cuff code: NSURL *url = [NSURL URLWithString:@http://eric.domain.com/iOS_Log/logger.php?string=Foo;]; NSString *emptyString = @; [emptyString writeToURL:url atomically:NO encoding:NSUTF8StringEncoding error:NULL]; ...come to think of it, since you're doing a GET you could probably just readFromURL and then discard the resulting NSString object. The point is basically that all of your data is going to be in the NSURL for the GET request, all you need to do is touch that URL via some method. On Aug 4, 2011, at 9:52 AM, Eric E. Dolecki wrote: I have a little script sitting locally on my Mac (webserver). http://eric.domain.com/iOS_Log/logger.php: ? $myFile = yabba.txt; $fh = fopen($myFile,'a') or die(can't open file); $query = $_GET[string]; $stringData = $query.\n; fwrite($fh,$stringData); fclose($fh); ? I am simply trying to send the PHP a small string from my app on a device. I've seen examples of POST everywhere, but looking for GET. Of course if I do *http://eric.domain.com/iOS_Log/logger.php?string=Foo* in a browser it works fine. ___ 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/joe.wollard%40gmail.com This email sent to joe.woll...@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
Re: Telling Auto Save, No, I'm busy now
On Aug 4, 2011, at 8:54 AM, Jerry Krinock wrote: I'm getting a crash if I begin some operations and then hit the 'close' button on the window while the operations are in progress… I take the four parameters I receive in saveToURL:ofType:forSaveOperation:completionHandler: and put them into a dictionary in an NSOperation, and throw this operation onto the end my operation queue. (This project was written back in 10.5 so it does not use GCD.) Did you copy the block, or did you just add it to the dictionary as a value (which just retains it)? You need to copy it and then later release it. When this final operation runs, I send this dictionary to a selector on the main thread. But the completion handler seems to contain a bomb at this point – it usually crashes upon receiving any message, not always in the same place. Often, it crashes when I send it to super's saveToURL:ofType:forSaveOperation:completionHandler:, which apparently tries to copy it, like this… #00x97c68987 in _Block_copy_internal #10x97c68bd8 in _Block_object_assign #20x97123a41 in __copy_helper_block_138 #30x97c67f86 in _Block_call_copy_helper #40x97c689d3 in _Block_copy_internal #50x97c68bd8 in _Block_object_assign #60x9713f43b in __copy_helper_block_40 #70x97c67f86 in _Block_call_copy_helper #80x97c689d3 in _Block_copy_internal #90x9bb22eae in _dispatch_Block_copy #10 0x9bb251ea in dispatch_async #11 0x9713ac9c in -[NSDocument performAsynchronousFileAccessUsingBlock:] #12 0x97123688 in -[NSDocument saveToURL:ofType:forSaveOperation:completionHandler:] This suggests that you didn't copy it. Thus, the above is the first time it has been copied, which attempts to relocated it off of its original stack frame and into the heap. However, that stack frame is long gone and no longer valid. Retaining the completionHandler a half dozen times, with no corresponding releases, before placing into the dictionary, does not help. So apparently it's not memory management. Blocks have special memory management requirements and retaining is not sufficient if the block is to survive its original stack frame. Regards, 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
Re: Question about sending to PHP from Obj-C
On Aug 4, 2011, at 7:52 AM, Eric E. Dolecki wrote: I have a little script sitting locally on my Mac (webserver). http://eric.domain.com/iOS_Log/logger.php: ? $myFile = yabba.txt; $fh = fopen($myFile,'a') or die(can't open file); $query = $_GET[string]; $stringData = $query.\n; fwrite($fh,$stringData); fclose($fh); ? Just a note that it is not useful to post the PHP code--not only is it not relevant to your case, there is no guarantee that list members are familiar enough with PHP to make real sense of it. I am simply trying to send the PHP a small string from my app on a device. I've seen examples of POST everywhere, but looking for GET. Of course if I do *http://eric.domain.com/iOS_Log/logger.php?string=Foo* in a browser it works fine. Anyway--can you be more specific about your problem? Regarding specifying query strings, Cocoa doesn't provide any convenient means that I know of to build query strings so you have to manually assemble them. Something like: NSString *urlString = [NSString stringWithFormat:@http://eric.domain.com/iOS_Log/logger.php?string=%@;, [foo stringByAddingPercentEscapesUsingEncoding:NSASCIIStringEncoding]]; NSURL *url = [NSURL URLWithString: urlString]; HTH, 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: Telling Auto Save, No, I'm busy now
On 2011 Aug 04, at 07:53, Ken Thomases wrote: On Aug 4, 2011, at 8:54 AM, Jerry Krinock wrote: I'm getting a crash if I begin some operations and then hit the 'close' button on the window while the operations are in progress… I take the four parameters I receive in saveToURL:ofType:forSaveOperation:completionHandler: and put them into a dictionary in an NSOperation, and throw this operation onto the end my operation queue. (This project was written back in 10.5 so it does not use GCD.) Did you copy the block, or did you just add it to the dictionary as a value (which just retains it)? The latter, Ken. I didn't mention that I was a newbie on Blocks, having just read Blocks Programming Topics yesterday. Copying Blocks was near the end … looks like I must have fallen asleep. This suggests that you didn't copy it. Thus, the above is the first time it has been copied, which attempts to relocated it off of its original stack frame and into the heap. However, that stack frame is long gone and no longer valid. Yup. Blocks have special memory management requirements and retaining is not sufficient if the block is to survive its original stack frame. OK, I'll go do the homework. Thank you. ___ 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: Telling Auto Save, No, I'm busy now
What Ken said. Also, it might be more convenient to use NSBlockOperation or -addOperationWithBlock so the function parameters (including the completion handler) are all captured correctly for you automatically. It's a lot more convenient than stashing things in an NSDictionary. Finally, I misspoke about the application blocking when you defer calling the completion handler. User interaction blocking for async saving doesn't get invoked until much later. As a result, yes the user can continue editing the document, which I suppose is OK since the pending autosave will pick up those changes as well. However, since -autosaveWithImplicitCancellability:… uses -performAsynchronousFileAccessUsingBlock:, any further attempts to gain access to the file will block the main thread, so you'll need to use -continueAsynchronousWorkOnMainQueueUsingBlock: to avoid a potential deadlock when reinvoking the -saveToURL: method on the main queue. Also, what I said about other applications blocking trying to get sole access to the file via file coordination is still true. -KP On Aug 4, 2011, at 7:53 AM, Ken Thomases wrote: On Aug 4, 2011, at 8:54 AM, Jerry Krinock wrote: I'm getting a crash if I begin some operations and then hit the 'close' button on the window while the operations are in progress… I take the four parameters I receive in saveToURL:ofType:forSaveOperation:completionHandler: and put them into a dictionary in an NSOperation, and throw this operation onto the end my operation queue. (This project was written back in 10.5 so it does not use GCD.) Did you copy the block, or did you just add it to the dictionary as a value (which just retains it)? You need to copy it and then later release it. When this final operation runs, I send this dictionary to a selector on the main thread. But the completion handler seems to contain a bomb at this point – it usually crashes upon receiving any message, not always in the same place. Often, it crashes when I send it to super's saveToURL:ofType:forSaveOperation:completionHandler:, which apparently tries to copy it, like this… #0 0x97c68987 in _Block_copy_internal #1 0x97c68bd8 in _Block_object_assign #2 0x97123a41 in __copy_helper_block_138 #3 0x97c67f86 in _Block_call_copy_helper #4 0x97c689d3 in _Block_copy_internal #5 0x97c68bd8 in _Block_object_assign #6 0x9713f43b in __copy_helper_block_40 #7 0x97c67f86 in _Block_call_copy_helper #8 0x97c689d3 in _Block_copy_internal #9 0x9bb22eae in _dispatch_Block_copy #10 0x9bb251ea in dispatch_async #11 0x9713ac9c in -[NSDocument performAsynchronousFileAccessUsingBlock:] #12 0x97123688 in -[NSDocument saveToURL:ofType:forSaveOperation:completionHandler:] This suggests that you didn't copy it. Thus, the above is the first time it has been copied, which attempts to relocated it off of its original stack frame and into the heap. However, that stack frame is long gone and no longer valid. Retaining the completionHandler a half dozen times, with no corresponding releases, before placing into the dictionary, does not help. So apparently it's not memory management. Blocks have special memory management requirements and retaining is not sufficient if the block is to survive its original stack frame. Regards, 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/kperry%40apple.com This email sent to kpe...@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
Menu Item Key Equivalent
I have set the key equivalent for a menu item to A not cmd-A just plain A. I have other key equivalents set to numbers 0 , 1 , 3. If I hit 0, 1 or 3 the menu action method is called. If I hit A the menu action is not called. Where am I wrong? -koko ___ 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 to Identify if the device is used in iAD supported Regions
Wow, if that's really the behavior then I'd say you should definitely file a bug. Not only should users never see debug/test junk, but it would be ridiculous for you to have to hard code region support... without an API how would you handle addition or removal of a region? You shouldn't have to push out a new app. FWIW, given the absence of mention of iAd at WWDC this year and the publicized lack of enthusiasm among advertisers (at least in the US), I would not be surprised to see iAd revamped or even dropped. But this is purely speculative. (Sent from my iPhone.) -- Conrad Shultz www.synthetiqsolutions.com On Aug 4, 2011, at 1:28, Sasikumar JP jps...@gmail.com wrote: Cornad, I guess, Test Advertisement displays even your region App store does not support iAD. I have seen many application in my device displays Test Advertisement, as iAD not supported in my region. I agree with your approach,only if the delegate method(bannerViewDidLoadAd:) is not getting invoked for iAD not supported regions. But thats not the case, if Appstore supports iAD, it Displays real ad. otherwise it will display Test Ad. Either case your delegate method would be invoked. Any one can confirm the behaviour of iAD in the not supported region. Thanks Sasikumar JP On Thu, Aug 4, 2011 at 1:33 PM, Conrad Shultz con...@synthetiqsolutions.com wrote: Full disclosure: I don't use iAd, so this is based on WWDC recollection and doc lookup. The Test Advertisement I believe only displays when you are testing during development. Users will never see it. Keep the banner view hidden until you receive a bannerViewDidLoadAd: message in the ad delegate. Presumably this just won't get called in regions that don't support iAd. You could setup a timer to load from other ad networks if you don't receive an iAd within some predetermined period. (Sent from my iPad.) -- Conrad Shultz www.synthetiqsolutions.com On Aug 3, 2011, at 20:46, Sasikumar JP jps...@gmail.com wrote: I am planning to use iAD for my iOS application. As the iAD available only in USA,UK,France,Italia,Deutschland,España AppStores. I want to display iAD only for supported regions. This will avoid displaying Test Advertisement from iAD.I can use AdMob for all other regions. I am not sure, how to identify the iOS Device is used in supported region? Any help is highly appreciated. Thanks Sasikumar JP ___ 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/conrad%40synthetiqsolutions.com This email sent to con...@synthetiqsolutions.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
Symbol not found: _OBJC_CLASS_$_NSURL
My App has run on this users machine for quite some time now. I just did a new build changing nothing related to NSURL. Now when this user runs the app she gets this message: Dyld Error Message: Symbol not found: _OBJC_CLASS_$_NSURL Referenced from: /Applications/Convert It Mac.app/Contents/MacOS/Convert It Mac Expected in: /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation NSURL has been around since Moses. Do this indicate a problem with her machine? -koko ___ 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: Symbol not found: _OBJC_CLASS_$_NSURL
Le 4 août 2011 à 18:46, koko a écrit : My App has run on this users machine for quite some time now. I just did a new build changing nothing related to NSURL. Now when this user runs the app she gets this message: Dyld Error Message: Symbol not found: _OBJC_CLASS_$_NSURL Referenced from: /Applications/Convert It Mac.app/Contents/MacOS/Convert It Mac Expected in: /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation NSURL has been around since Moses. Do this indicate a problem with her machine? You probably either change the Deployment version, or the SDK setting. NSURL has been around since Moses, but until recent changes in OS X, it was in Foundation framework, not in CoreFoundation. -- Jean-Daniel ___ 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 to Identify if the device is used in iAD supported Regions
Haven't yet ventured in to iAd territory and don't know any of the data objects involved, so could be off in left field here. Since you will always get the -bannerViewDidLoadAd: delegate callback, even for the test ad, would it be possible to look inside the ad data to see if it is the test ad and just ignore it? - h On Thu, Aug 4, 2011 at 09:03, Conrad Shultz con...@synthetiqsolutions.comwrote: Wow, if that's really the behavior then I'd say you should definitely file a bug. Not only should users never see debug/test junk, but it would be ridiculous for you to have to hard code region support... without an API how would you handle addition or removal of a region? You shouldn't have to push out a new app. FWIW, given the absence of mention of iAd at WWDC this year and the publicized lack of enthusiasm among advertisers (at least in the US), I would not be surprised to see iAd revamped or even dropped. But this is purely speculative. (Sent from my iPhone.) -- Conrad Shultz www.synthetiqsolutions.com On Aug 4, 2011, at 1:28, Sasikumar JP jps...@gmail.com wrote: Cornad, I guess, Test Advertisement displays even your region App store does not support iAD. I have seen many application in my device displays Test Advertisement, as iAD not supported in my region. I agree with your approach,only if the delegate method(bannerViewDidLoadAd:) is not getting invoked for iAD not supported regions. But thats not the case, if Appstore supports iAD, it Displays real ad. otherwise it will display Test Ad. Either case your delegate method would be invoked. Any one can confirm the behaviour of iAD in the not supported region. Thanks Sasikumar JP On Thu, Aug 4, 2011 at 1:33 PM, Conrad Shultz con...@synthetiqsolutions.com wrote: Full disclosure: I don't use iAd, so this is based on WWDC recollection and doc lookup. The Test Advertisement I believe only displays when you are testing during development. Users will never see it. Keep the banner view hidden until you receive a bannerViewDidLoadAd: message in the ad delegate. Presumably this just won't get called in regions that don't support iAd. You could setup a timer to load from other ad networks if you don't receive an iAd within some predetermined period. (Sent from my iPad.) -- Conrad Shultz www.synthetiqsolutions.com On Aug 3, 2011, at 20:46, Sasikumar JP jps...@gmail.com wrote: I am planning to use iAD for my iOS application. As the iAD available only in USA,UK,France,Italia,Deutschland,España AppStores. I want to display iAD only for supported regions. This will avoid displaying Test Advertisement from iAD.I can use AdMob for all other regions. I am not sure, how to identify the iOS Device is used in supported region? Any help is highly appreciated. Thanks Sasikumar JP ___ 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/conrad%40synthetiqsolutions.com This email sent to con...@synthetiqsolutions.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/hsiegel%40gmail.com This email sent to hsie...@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
Re: How to Identify if the device is used in iAD supported Regions
If you find that your application is displaying the test ad on a non-development device after deploying to the App Store, then file a bug. The App Store build of your application should not be seeing the test ad on consumer devices. If you ran the App Store version of your application on a development device prior to iOS 4.3, there are cases where you will persistently see the test ad when you should not (on 4.3 or later this should only happen if you run the App Store and development builds in rapid succession). This should only occur on devices that you used for development of that application (this includes any device that has ever run a non-App Store version of the application). So to summarize, this should work exactly as Conrad described it for your customers. If it does not, file a bug. On Aug 4, 2011, at 1:28 AM, Sasikumar JP wrote: I guess, Test Advertisement displays even your region App store does not support iAD. I have seen many application in my device displays Test Advertisement, as iAD not supported in my region. I agree with your approach,only if the delegate method(bannerViewDidLoadAd:) is not getting invoked for iAD not supported regions. But thats not the case, if Appstore supports iAD, it Displays real ad. otherwise it will display Test Ad. Either case your delegate method would be invoked. Any one can confirm the behaviour of iAD in the not supported region. -- David Duncan ___ 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: [iOS] Block animation kills performance
On Sun, 31 Jul 2011 16:20:48 -0700, Rick Mann rm...@latencyzero.com said: Xcode 3.2.6, iOS 4.3. My app shows a heartbeat as a flashing red square. Once each second, I execute the following code. If I use the block style, overall performance of the app suffers greatly (the UI becomes unresponsive to touches). If I animate the more traditional way, UI responsiveness seems normal. This occurs in both the simulator and the device (iPad). Am I doing something wrong? My book is clear on this point: http://www.apeth.com/iOSBook/ch17.html#_block_based_view_animation User touch interactions are disabled during the animation, by default [i.e., when using what you call the block style]. This is not the case with an animation block [i.e. when using what you call the traditional way]. The optionUIViewAnimationOptionAllowUserInteraction lets you reverse this setting. m. -- matt neuburg, phd = m...@tidbits.com, http://www.apeth.net/matt/ A fool + a tool + an autorelease pool = cool! Programming iOS 4! http://www.apeth.net/matt/default.html#iosbook___ 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: Unnecessary Boolean Warning
At the risk of offending contributors to this list, whose knowledge and helpfulness I greatly respect, may I suggest that this thread has gone on long enough and that competing opinions on this topic would be better aired on some other list? Boyd___ 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: Menu Item Key Equivalent
On Thu, Aug 4, 2011 at 9:17 AM, koko k...@highrolls.net wrote: I have set the key equivalent for a menu item to A not cmd-A just plain A. I have other key equivalents set to numbers 0 , 1 , 3. If I hit 0, 1 or 3 the menu action method is called. If I hit A the menu action is not called. Where am I wrong? Did you remember to remove the Cmd-A key equivalent from Edit Select All? --Kyle Sluder ___ 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: finding my UIViewController
On Thu, 04 Aug 2011 00:07:40 +0800, Roland King r...@rols.org said: Is there any way to find, given a UIView, what the closest presenting UIViewController is? Walk the responder chain until you come to a UIViewController? UIResponder* r = self; while (![r isKindOfClass: [UIViewController class]]) r = [r nextResponder]; m. -- matt neuburg, phd = m...@tidbits.com, http://www.apeth.net/matt/ A fool + a tool + an autorelease pool = cool! Programming iOS 4! http://www.apeth.net/matt/default.html#iosbook___ 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: NSTableView with autoResizing Column: How to trigger auto-resizing after setFrame:?
On Aug 4, 2011, at 03:12, Daniel Vollmer wrote: On 3 Aug 2011, at 19:20, Quincey Morris wrote: By modifying the frame of what? You should be changing the scroll view frame, but you make it sound like you're changing the table view frame. The frame of the tableview. I want the scrollview to stay the same size, only to display half of twice as much content (i.e. display the left half of the original content in twice as much detail, with the ability to scroll over to the 2nd half). The relationship between the table view and the scroll view is more intimate than that. The view hierarchy (not all shown in IB) is scroll view -- clip view -- document view, and in this case the document view is the table view. The only way you can *directly* have the table view be half of the scroll view's content is to mess with the scroll view's internal layout, and that may violate the table view's assumptions about its relationship to the enclosing views. If you want to have other content that scrolls along with the table view inside the scroll view (which I *think* is what you're trying to do), then the correct way to do it is to enclose the table view (along with its own scroll view) and the associated content in a containing scroll view (which means the table view's scroll view and the other content will be enclosed in a custom view that's the outer scroll view's document view). The inner scroll view would be set to autoresize, so it basically has no effect, all the resizing being driven by the outer scroll view. While it may seem ridiculous to have the extra, useless, inner scroll view, it's actually just easer to go with the flow on this. You can *try* to divorce a table view from the scroll view that IB creates for it, but IMO it isn't worth the effort or the pain. ___ 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: [iOS] Block animation kills performance
Thanks! On Aug 4, 2011, at 11:02 , Matt Neuburg wrote: On Sun, 31 Jul 2011 16:20:48 -0700, Rick Mann rm...@latencyzero.com said: Xcode 3.2.6, iOS 4.3. My app shows a heartbeat as a flashing red square. Once each second, I execute the following code. If I use the block style, overall performance of the app suffers greatly (the UI becomes unresponsive to touches). If I animate the more traditional way, UI responsiveness seems normal. This occurs in both the simulator and the device (iPad). Am I doing something wrong? My book is clear on this point: http://www.apeth.com/iOSBook/ch17.html#_block_based_view_animation User touch interactions are disabled during the animation, by default [i.e., when using what you call the block style]. This is not the case with an animation block [i.e. when using what you call the traditional way]. The optionUIViewAnimationOptionAllowUserInteraction lets you reverse this setting. m. -- matt neuburg, phd = m...@tidbits.com, http://www.apeth.net/matt/ A fool + a tool + an autorelease pool = cool! Programming iOS 4! http://www.apeth.net/matt/default.html#iosbook ___ 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: UITableViewController, with table view not the root of its nib?
On Wed, 03 Aug 2011 13:49:10 -0700, Jens Alfke j...@mooseyard.com said: As far as I can tell, UITableViewController only works when the table is the root of the nib That's basically right. The docs are very clear on this: you must not use UITableViewController unless the table view *is* the whole controlled view: Note: You should use a UIViewController subclass rather than a subclass of UITableViewController to manage a table view if the view to be managed is composed of multiple subviews, one of which is a table view. The default behavior of the UITableViewController class is to make the table view fill the screen between the navigation bar and the tab bar (if either are present). However, use of a UITableViewController doesn't really net you any functionality you can't implement yourself, so this should not be a big issue. m. -- matt neuburg, phd = m...@tidbits.com, http://www.apeth.net/matt/ A fool + a tool + an autorelease pool = cool! Programming iOS 4! http://www.apeth.net/matt/default.html#iosbook___ 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
view:(QTMovieView *)view willDisplayImage:
Hi, I've been looking for a way to draw on top of a QT movie whose display dimensions the user can vary using the window's resize handle(?) while it is running. I have previously stepped through the individual frames but the result was jerky. I obtained a smoother result by first converting the movie into an image sequence but the time required to perform the convertion and memory use are unacceptable. The most promising suggestion I've found so far is the (undocumented) delegate method in QTMovieView.h - (CIImage *)view:(QTMovieView *)view willDisplayImage:(CIImage *)image Some discussions on various forums circa 2008, suggest the method had been used successfully in the past but it's not worked for me. XCode seems not to recognise it. Is the method no longer extant? Should I look to try another approach e.g. Core Video? I use XCode 3.2.6 Julius http://juliuspaintings.co.uk ___ 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: view:(QTMovieView *)view willDisplayImage:
Have you tried putting both the movie view, and a custom overlay inside of a layer-backed view? The more traditional route I think is to add a child window for the overlay, keeping its size/placement in sync with the parent window Sent from my iPad On 4 Aug 2011, at 08:13 PM, julius jul...@juliuspaintings.co.uk wrote: Hi, I've been looking for a way to draw on top of a QT movie whose display dimensions the user can vary using the window's resize handle(?) while it is running. I have previously stepped through the individual frames but the result was jerky. I obtained a smoother result by first converting the movie into an image sequence but the time required to perform the convertion and memory use are unacceptable. The most promising suggestion I've found so far is the (undocumented) delegate method in QTMovieView.h - (CIImage *)view:(QTMovieView *)view willDisplayImage:(CIImage *)image Some discussions on various forums circa 2008, suggest the method had been used successfully in the past but it's not worked for me. XCode seems not to recognise it. Is the method no longer extant? Should I look to try another approach e.g. Core Video? I use XCode 3.2.6 Julius http://juliuspaintings.co.uk ___ 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/cocoadev%40mikeabdullah.net This email sent to cocoa...@mikeabdullah.net ___ 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: Symbol not found: _OBJC_CLASS_$_NSURL
Thanks ! Now I remember reading about this somewhere ... NSURL moving from one framework to another. -koko On Aug 4, 2011, at 10:59 AM, Jean-Daniel Dupas wrote: Le 4 août 2011 à 18:46, koko a écrit : My App has run on this users machine for quite some time now. I just did a new build changing nothing related to NSURL. Now when this user runs the app she gets this message: Dyld Error Message: Symbol not found: _OBJC_CLASS_$_NSURL Referenced from: /Applications/Convert It Mac.app/Contents/MacOS/Convert It Mac Expected in: /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation NSURL has been around since Moses. Do this indicate a problem with her machine? You probably either change the Deployment version, or the SDK setting. NSURL has been around since Moses, but until recent changes in OS X, it was in Foundation framework, not in CoreFoundation. -- Jean-Daniel ___ 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: view:(QTMovieView *)view willDisplayImage:
On 4 Aug 2011, at 20:25, Mike Abdullah wrote: Have you tried putting both the movie view, and a custom overlay inside of a layer-backed view? The more traditional route I think is to add a child window for the overlay, keeping its size/placement in sync with the parent window Hi Mike thanks. I'll take a good look at both of these. Best wishes Julius http://juliuspaintings.co.uk ___ 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: Menu Item Key Equivalent
Is not cmd-A and A different? Why would cmd-A need to be removed? -koko On Aug 4, 2011, at 12:18 PM, Kyle Sluder wrote: On Thu, Aug 4, 2011 at 9:17 AM, koko k...@highrolls.net wrote: I have set the key equivalent for a menu item to A not cmd-A just plain A. I have other key equivalents set to numbers 0 , 1 , 3. If I hit 0, 1 or 3 the menu action method is called. If I hit A the menu action is not called. Where am I wrong? Did you remember to remove the Cmd-A key equivalent from Edit Select All? --Kyle Sluder ___ 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: Menu Item Key Equivalent
On Thu, Aug 4, 2011 at 1:06 PM, koko k...@highrolls.net wrote: Is not cmd-A and A different? Why would cmd-A need to be removed? Oh, I misread. Is this even supported? The key equivalent machinery might not dispatch non-modified characters to menus… --Kyle Sluder ___ 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
CoreData I/O error for database: no such table
I tried searching around and found one other person who had the same problem[1], but no one followed up with a good solution for existing databases. I have an entity with a many-to-many relationship to itself, called parents and children. And when I take a database that was made by an application built by Xcode 3.2.6 and move that application to Xcode 4.1, I'm now getting this error when trying to look up something in that entity: I/O error for database at /path/to/mydatabase.db. SQLite error code:1, 'no such table: Z_16PARENTS' It looks like the model compiler made a subtle change to the many-to-many table that is part of the model used to make the database during the switch. How do I make it so that it uses the same tables that it used to use? Throwing out and rebuilding the existing database is not an option. I already tried changing the Mac OS X deployment target, since I noticed that the deployment target is passed to momc, but that did not make any difference. I was able to work around the problem by creating a custom build rule that builds the data model using Xcode 3's momc tool instead of Xcode 4's tool, and while that did solve the problem, there has got to be a better way. But what is that way? I can't believe Xcode 4 would ship with such a regression in momc... Nick Zitzmann http://www.chronosnet.com/ [1] http://www.cocoabuilder.com/archive/cocoa/306002-core-data-o-error-no-such-column.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: Menu Item Key Equivalent
The reason I have tried is that in the same menu I use 0,1,3,6 without cmd modifier and they work just fine. FYI This is a a Zoom Menu A = zoom all S = zoom selected 0 = zoom to hoop 1 = zoom 1:1 3 = zoom 3:1 6 = zoom 6:1 On Aug 4, 2011, at 2:18 PM, Kyle Sluder wrote: On Thu, Aug 4, 2011 at 1:06 PM, koko k...@highrolls.net wrote: Is not cmd-A and A different? Why would cmd-A need to be removed? Oh, I misread. Is this even supported? The key equivalent machinery might not dispatch non-modified characters to menus… --Kyle Sluder ___ 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
Core Data Concurrency Issues
I’m having some issues with concurrency with Core Data. I create an object
that has a to-many relationship with another object (which in turn has a
to-one reciprocal relationship with the first object), then dispatch_async
onto a private queue. In that queue, I use a separate managed object
context, which I’ve created earlier and only use within that queue. Here’s a
snippet:
ParentObject *parent = [NSEntityDescription
insertNewObjectForEntityName:@ParentObject]
inContext:[self moc]];
NSManagedObjectID *objectID = [parent objectID];
dispatch_async(dedicatedQueue, ^{
// Note: childContext is an NSManagedObjectContext that has been created
earlier and is only used within this queue.
ParentObject *parent = [childContext objectWithID:userID];
for (NSDictionary *jsonDict in allChildDicts) {
ChildObject *child = [NSEntityDescription
insertNewObjectForEntityName:@ChildObject]
inContext:childContext];
[parent addChildObject:child];
}
});
If I try to save the context within the dedicated queue, I get validation
errors on the child objects with the text “Dangling reference to an invalid
object.”
It appears to work correctly if I create the parent object within the
dedicated child queue. So, what is the proper way to create these objects on
the main queue and then update them in the background? Thanks in advance.
Jeff Kelley
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Re: Correct way to use contextInfo with ARC
On Aug 3, 2011, at 6:38 PM, Kevin Bracey wrote:
NSMutableArray *someInfo = [NSArray arrayWithObjects:@made , @it,
@across,. nil];
Did you really want to create an NSArray (non-mutable) and then pass it off as
an NSMutableArray? Since you mentioned ARC, I'm surprised the compiler didn't
flag the type mismatch. You might have better luck creating the NSMutableArray
that your completion routine seems to be expecting:
NSMutableArray *someInfo = [NSMutableArray arrayWithObjects:@made ,
@it, @across,. nil];
[holdAlert beginSheetModalForWindow:[self window] modalDelegate:self
didEndSelector:@selector(
alertDidEnd:returnCode:contextInfo: ) contextInfo:someInfo;
-(void)alertDidEnd:(NSAlert *)alert returnCode:(int)returnCode
contextInfo:(void *)contextInfo
{
NSMutableArray *holdArray = (NSMutableArray*)contextInfo;
...
}
Or, if the array doesn't really need to be mutable, use NSArray throughout. The
only reason to make it mutable would be so the completion handler could use it
to pass information back, but of course it has the delegate itself for that.
Or, use a block. That might be simpler
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Re: Core Data Concurrency Issues
A managed object context needs to be used and created from the same thread.
Create and use childContext in a single dispatchAsync block.
-Heath
On Aug 4, 2011 5:32 PM, Jeff Kelley slauncha...@gmail.com wrote:
I’m having some issues with concurrency with Core Data. I create an object
that has a to-many relationship with another object (which in turn has a
to-one reciprocal relationship with the first object), then dispatch_async
onto a private queue. In that queue, I use a separate managed object
context, which I’ve created earlier and only use within that queue. Here’s
a
snippet:
ParentObject *parent = [NSEntityDescription
insertNewObjectForEntityName:@ParentObject]
inContext:[self moc]];
NSManagedObjectID *objectID = [parent objectID];
dispatch_async(dedicatedQueue, ^{
// Note: childContext is an NSManagedObjectContext that has been created
earlier and is only used within this queue.
ParentObject *parent = [childContext objectWithID:userID];
for (NSDictionary *jsonDict in allChildDicts) {
ChildObject *child = [NSEntityDescription
insertNewObjectForEntityName:@ChildObject]
inContext:childContext];
[parent addChildObject:child];
}
});
If I try to save the context within the dedicated queue, I get validation
errors on the child objects with the text “Dangling reference to an
invalid
object.”
It appears to work correctly if I create the parent object within the
dedicated child queue. So, what is the proper way to create these objects
on
the main queue and then update them in the background? Thanks in advance.
Jeff Kelley
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