Re: Zeroing out instance variables
On Sat, Apr 17, 2010 at 8:29 PM, Ben Haller bhcocoa...@sticksoftware.com wrote: I don't think I'm crazy about this. There are many different subclasses, so each subclass would have its own corresponding struct, and every ivar access would go through an indirection; it sounds very confusing and messy. Not to say there might not be cases where it would be the correct design; but for my situation, I think I'm happier with my current design. Thanks for the suggestion, though! Dirty little secret: every ivar access on 64-bit is already indirected through the runtime. Otherwise the runtime couldn't support non-fragile instance variables. :) You could theoretically get better performance if your instance variable were a pointer-to-struct. But if your way is sufficiently performant, stick with it. --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: Any Cocoa Developers in Denver?
On Sat, Apr 17, 2010 at 5:49 AM, Roby Sherman rxsh...@interealm.com wrote: Besides Quark being down the street, I don't come across many Cocoa developers around here and was just curious how out in the boonies I am. :) Hey maybe the 3 of us could get some coffee sometime, drop me a line! ;) ;) There are many regional Cocoa groups throughout the world. Here are two that are in your neck of the woods: CocoaHeads: http://cocoaheads.org/us/BoulderColorado/index.html NSCoder Night: http://nscodernight.com/?cat=14 --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: Supporting different orientations with UITabBarView?
Looking sheepishly down: I found my mistake. There was still one view controller subclass that wasn't overriding the method. It's working now, but thanks for reminding me! -Laurent. -- Laurent Daudelin AIM/iChat/Skype:LaurentDaudelin http://nemesys.dyndns.org Logiciels Nemesys Software laurent.daude...@gmail.com Photo Gallery Store: http://laurentdaudelin.shutterbugstorefront.com/g/galleries On Apr 17, 2010, at 20:19, Luke Hiesterman wrote: You should post some sample code of the tabBarController not autorotating. The behavior of the tabBarcontroller should definitely be to rotate if all of it's child viewViewControllers support rotation to the given orientation. Luke ___ 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: Text file
The call to -stringWithContentsOfFile: looks correct, but you're failing to check for errors. If it fails, it will return nil, and passing nil to setString: is illegal and will throw an exception. right, right... most correct. I can catch the nil. This leaves the question of why -stringWithContentsOfFile: would fail. I'm not sure what heuristics that call uses, but you'd think it would be able to handle MacRoman, obsolete though it is. exactly the point germane, but in perusing NSString.h one is given to understand this method might not be as 'smart' as one could wish: -- *These try to determine the encoding, and return the encoding which was used. Note that these methods might get smarter in subsequent releases of the system, and use additional techniques for recognizing encodings. If nil is returned, the optional error return indicates problem that was encountered (for instance, file system or encoding errors).* -- ...alas poor lost MacRoman. ___ 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: Converting an afp:NSURL to a filesystem path - or - Ya can't get there from here...
On Apr 17, 2010, at 5:29 PM, Ken Thomases wrote: On Apr 17, 2010, at 6:46 PM, James Bucanek wrote: How do I get the mount point path of a freshly mounted volume in Snow Leopard? In Leopard (10.5), the NSWorkspaceDidMountNotification included an NSDevicePath value. It contained the path to the mount point of the freshly mounted volume. In Snow Leopard (10.6), this property has been deprecated and has been replaced with NSWorkspaceVolumeURLKey that contains an NSURL to the new volume. Here's the problem: How do you turn the NSURL into its equivalent filesystem path? For backwards compatibility, the notification still includes an NSDevicePath value, but that value is wrong for AFP volumes. For example, in 10.5 mounting the network volume Dinah would fire a notification containing NSDevicePath=/Volumes/Dinah. In 10.6, mounting the same volume posts a notification containing: NSWorkspaceVolumeURLKey = NSURL(afp://james%20buca...@march%20hare._afpovertcp._tcp.local/Dinah) NSDevicePath = /Dinah Does seem like a bug. Perhaps you can use -[NSWorkspace mountedLocalVolumePaths]? You'd keep a copy of the old value and recheck it on each mount/unmount notification. By the way, are you mounting this volume programmatically using FSMountServerVolumeSync/Async? If so, then you get a volume reference number back, and you can use FSGetVolumeInfo to get its root directory as an FSRef, and from there a path or URL. In fact, it may be possible to use FSMountServerVolumeSync with the afp: URL you're getting from NSWorkspace. You'd effectively be asking to remount the volume that was just mounted. Hopefully, the OS will immediately return success without doing any actual new mounting, and that would be a way to get the volume reference number. On the other hand, it's just as likely to return some sort of volume already mounted error. Good luck, Ken If that doesn't work, you could try looping through the mounted volumes and check each one for a matching URL with FSCopyURLForVolume(). Kevin___ 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
[iPhone] Adding an Image to a View
Hi All, I have two UIView's in Interface Builder in separate .xib files. The first .xib file looks like this: File's OwnerViewControllerX First Responder UIResponder MainViewUIView ImageView (Image1.jpg) UIImageView (Inside UIView) Rounded Rect Button UIButton (Inside UIView) Table View UITableView (Inside UIView) Rounded Rect Button UIButton (Inside UIView) When I run this and call up the View all works as intended, the Image, Buttons and the Table all display and interact correctly. The second .xib file looks like this: File's OwnerViewControllerY First Responder UIResponder ViewUIView ImageView (Image1.jpg) UIImageView (Inside UIView) Table View UITableView (Inside UIView) However, when I run this and call up the View, the Table displays ok, but the image doesn't show up at all! I've compared all the properties (outlets etc.) and as far as I can see, the two views are hooked up in the same way but it just doesn't display the image. I am using the same source file for the two images (Image1.jpg) and this file is inside the XCode Project. Both views display just fine in Interface Builder. The second View is called up via a user click on a table view item from the First view and is just pushed onto the Navigation Stack in the normal way. Is there something else I need to do? I'm trying to get this ready for a demo tomorrow and it would be nice if I could get the image to display! Thanks in Advance for any help. All the Best Dave ___ 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: Strange autoreleased with no pool in place message
On 18.04.2010, at 1:59, Ken Thomases wrote: Run Manage Breakpoints Add Symbolic Breakpoint. Type the name of the function to break on. In general, you should familiarize yourself with the Xcode Debugging Guide: http://developer.apple.com/mac/library/documentation/DeveloperTools/Conceptual/XcodeDebugging/ Thank you, though I've found the reason. A friend of mine shared this code snippet with me: #ifdef DEBUG #define NSLog( s, ... ) NSLog( @%s : (%d) %@,__FUNCTION__, __LINE__, [NSString stringWithFormat:(s), ##__VA_ARGS__] ) #else #define NSLog( s, ... ) #endif This macro is helpful when it is in correct hands :) I didn't take it into account that such redefined NSLog can't be used without a NSAutoReleasePool, being previously initialized. Usual NSLog can be used wherever you wish unless it is not using autoreleased objects. For example, NSLog(@Hello); can be inserted wherever you wish, right? I've removed NSLog call from one improper location, and the problem has disappeared. What is interesting, this error didn't lead to crash in 10.5+, but leads to crash in 10.4. Most likely you started an NSThread without putting an autorelease pool in the thread’s main function, or you got a callback on some thread and are making Cocoa calls on it without wrapping your callback in an autorelease pool. Start NSThread even BEFORE main() ? Is it possible? It is possible, with something like +load. It's also possible log lines are somehow out of order. In any case, there's no reason to speculate. The debugger can show you exactly where/when this is happening. As for threads, it's definitely not my case. all my threads are initialized in FreePascal back-end stuff, because FPC doesn't support Cocoa threads for some reason. Of course I'm using NSAutoReleasePool in all Cocoa methods, called from FPC thread procedures. Fortunately this part of my project works OK. Thanks. ___ 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 copy something to the pasteboard in a service call
On 16/04/2010, at 4:41 PM, Kay Jurkuhn wrote: Hi list! I'm implementing an application service. The desired result of the action is to copy a string to the pasteboard. But as the communication between caller and called service goes via the pasteboard the caller will delete the content of the pasteboard at the end of the call. What would be the best way to keep my string on the pasteboard publicly accessible after the call? Set up a timer? Application services communicate through *A* pasteboard, not through *THE* pasteboard. From the introduction to services: Services are performed by transferring data back and forth between applications through a shared pasteboard. Note that the two applications—service requester and service provider—are completely separate; they do not run in a shared memory space. The pasteboard holding the data is specific to the service request and does not normally interfere with the standard Copy/Paste pasteboard. So you can place your string on the services pasteboard you're passed and the general pasteboard for normal use. --Graham ___ 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: Text file
On Apr 18, 2010, at 3:40 AM, Henrietta Read wrote: This leaves the question of why -stringWithContentsOfFile: would fail. I'm not sure what heuristics that call uses, but you'd think it would be able to handle MacRoman, obsolete though it is. In general, it is. For example, I just created a test file encoded in MacRoman and stringWithContentsOfFile:usedEncoding:error: correctly set the encoding to 30 - or Western (Mac OS Roman) when run through localizedNameOfStringEncoding: Something else is going on here. warmest regards, Ralph Raffael Cavallaro raffaelcavall...@me.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 do I get a file reference w/o relying on the path?
I'm storing the bookmark data in an array displayed in a table: NSData *bookmarkData = [inAbsoluteURL bookmarkDataWithOptions:NSURLBookmarkCreationSuitableForBookmarkFile includingResourceValuesForKeys:nil relativeToURL:nil error:error]; When the user double clicks on the row in the table I want to open the file. I use this: NSError *error; BOOL isStale; NSURL *url = [NSURL URLByResolvingBookmarkData:bookmarkData options:NSURLBookmarkResolutionWithoutUI relativeToURL:nil bookmarkDataIsStale:isStale error:error]; When the file's name or directory changes on my hard drive the resolved url == nil. I'd like it to resolve to the actual file even if my app is closed and opened again (I'm saving the bookmarkData to repopulate the table the next time the user opens my app). I thought that's what bookmarks did in 10.6 - I could be wrong. An ugly workaround would be when the user double-clicks for me to create an actual alias file in a temp folder from the bookmark data and store that in my array, recreate it in a temp folder and launch that. I'm sure that's wrong - there has got to be a better way. On Apr 3, 2010, at 6:55 PM, Ken Thomases wrote: On Apr 3, 2010, at 5:20 PM, Brad Stone wrote: I want to store a reference to a file in an ivar that will allow the user to change the file's name and/or the directory (i.e. the path) and still allow me to access it. I don't want to create a file (like an ailas). I need to store the file reference in a variable so I can open the file no matter where the user moves it or renames it. FSRefs have the property you desire. As of Snow Leopard, though, the new recommended technique is to use a file reference NSURL. Check the NSURL documentation and also: http://developer.apple.com/mac/library/documentation/cocoa/conceptual/LowLevelFileMgmt/Articles/FileManagementNSURL.html Note that an alias _record_ is different from an alias _file_. An alias record is data in memory and is suitable for this purpose, but perhaps overkill. As of Snow Leopard, alias records are deprecated in favor of bookmark data, but, again, it's probably overkill. (Both alias records and bookmark data are more suitable if the reference is to be persisted for use by a later process. Also, both can apply more robust searching heuristics to find an appropriate file even if it isn't the original. For example, if the original is deleted and replaced with a new file of the same name.) 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
+Hi+
http://sites.google.com/site/xcsde4rs/ucfn8w -- http://www.doomstick.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: +Hi+
How did this get past moderation? On 18 Apr 2010, at 15:55, Daniel Grace wrote: http://sites.google.com/site/xcsde4rs/ucfn8w -- http://www.doomstick.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/joshualeetucker%40googlemail.com This email sent to joshualeetuc...@googlemail.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
Checking if a touch is within a UIButton’s bou nds.
I am trying to make an if statement which will check whether the users touch is
within a
UIButton's bounds. I thought this would be an easy affair as UIButton
is a subclass of UIView, however my code doesn't seem to work.
This is the code I have been using.
- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event {
NSArray *array = [touches allObjects];
UITouch *specificTouch = [array objectAtIndex:0];
currentTouch = [specificTouch locationInView:self.view];
if (CGRectContainsPoint(button.bounds, currentTouch)) {
//Do something.
}
//Else do nothing.
}
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Re: Checking if a touch is within a UIButton ’s bounds.
Is self.view the same thing as button? You're using the former to produce
a CGPoint, but the latter to produce a bounding rectangle. My guess is that
they're not the same, which means the point is in a different coordinate system
than button.bounds.
HTH,
Dave
On Apr 18, 2010, at 9:02 AM, Joshua Garnham wrote:
I am trying to make an if statement which will check whether the users touch
is within a
UIButton's bounds. I thought this would be an easy affair as UIButton
is a subclass of UIView, however my code doesn't seem to work.
This is the code I have been using.
- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event {
NSArray *array = [touches allObjects];
UITouch *specificTouch = [array objectAtIndex:0];
currentTouch = [specificTouch locationInView:self.view];
if (CGRectContainsPoint(button.bounds, currentTouch)) {
//Do something.
}
//Else do nothing.
}
smime.p7s
Description: S/MIME cryptographic signature
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Re: How do I get a file reference w/o relying on the path?
On Apr 18, 2010, at 10:43 AM, Brad Stone wrote: I'm storing the bookmark data in an array displayed in a table: NSData *bookmarkData = [inAbsoluteURL bookmarkDataWithOptions:NSURLBookmarkCreationSuitableForBookmarkFile includingResourceValuesForKeys:nil relativeToURL:nil error:error]; I am doing the same thing and it is still able to resolve the bookmarks when the file moves or its name changes. The only real difference I can see between our two approaches is that I am passing 0 for both the creation options and the resolution options. What are the properties of the error object are you getting when the bookmark resolution fails? -Noah ___ 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: +Hi+
On Sun, Apr 18, 2010 at 9:58 AM, Joshua Tucker joshualeetuc...@googlemail.com wrote: How did this get past moderation? How indeed. I've sent two messages to the list before that were trying to answer a question and both were rejected for No reason. Someone from the Ukraine gets into my email and sends just a spam link and it gets through? Odd indeed. I've killed all other sessions and changed my password, though. Sorry that it got through... somehow. 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
scrollPoint: and smooth scrolling depend on current modifierFlags?
Hi list, I'm using NSViews scrollPoint: method to scroll a custom NSView subclass programmatically, when certain key events occur. Use smooth scrolling in the appearance tab of SystemPreferences.app is enabled. The problem is, that scrollPoint: seems to evaluate the current modifier flags and decides that smooth scrolling should be disabled when alt, shift or ctrl are pressed. Otherwise it works as selected in SystemPreferences. Is there a way to change this disabling-behavior? Any hints? -- Michael Schmidt ___ 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
Weird CGFloat issue
Hi all, I'm having a really strange problem with a simple method call: CGFloat newMin = 150.0f; CGFloat newMax = 0.0f; [mapContentSubview setMinDimension:newMin andMaxDimension:newMax]; The method is defined as: - (void)setMinDimension:(CGFloat)newMinDimension andMaxDimension:(CGFloat)newMaxDimension; But when I look at what's coming in as the new min dimension, it is 807.000122, and not 150.0 as expected. If I call it like this: [mapContentSubview setMinDimension:150.0f andMaxDimension:newMax]; or [mapContentSubview setMinDimension:150.0 andMaxDimension:newMax]; the min dimension value at the other end is 5.5607842581234111e-315. I'm sure there is just some simple typing problem, but I'm just not seeing it. Any ideas? Thanks Gideon ___ 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: program termination after releasing self defined NSXMLParser class
Am 17.04.2010 um 18:44 schrieb Fritz Anderson: On 16 Apr 2010, at 11:34 AM, Alexander Spohr wrote: That means that -parse does not block. It runs in the event loop. I have not found this to be the case. In the context of the documents, and of the customary terms for XML parsing, event-driven parsing, provided by NSXMLParser, means that the parser yields elements one-by-one as it steps through the source. You'll note from the paragraph after the one you quote that -[NSXMLParser parse] returns YES if parsing is successful and NO in there is an error or if the parsing operation is aborted. This is impossible unless the parsing is done synchronously. You are right. I confused NSXMLParser with another one I used recently. Sorry for the noise. atze ___ 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: Weird CGFloat issue
Le 18 avr. 2010 à 19:26, Gideon King a écrit : Hi all, I'm having a really strange problem with a simple method call: CGFloat newMin = 150.0f; CGFloat newMax = 0.0f; [mapContentSubview setMinDimension:newMin andMaxDimension:newMax]; The method is defined as: - (void)setMinDimension:(CGFloat)newMinDimension andMaxDimension:(CGFloat)newMaxDimension; But when I look at what's coming in as the new min dimension, it is 807.000122, and not 150.0 as expected. If I call it like this: [mapContentSubview setMinDimension:150.0f andMaxDimension:newMax]; or [mapContentSubview setMinDimension:150.0 andMaxDimension:newMax]; the min dimension value at the other end is 5.5607842581234111e-315. I'm sure there is just some simple typing problem, but I'm just not seeing it. Any ideas? Look like a problem where the method declaration does not match exactly the definition (or you call the method without having imported the header and the compiler don't know the method signature). -- 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: Weird CGFloat issue
On Apr 18, 2010, at 1:26 PM, Gideon King wrote: CGFloat newMin = 150.0f; CGFloat newMax = 0.0f; [mapContentSubview setMinDimension:newMin andMaxDimension:newMax]; The method is defined as: - (void)setMinDimension:(CGFloat)newMinDimension andMaxDimension:(CGFloat)newMaxDimension; Are you taking account of the fact that CGFloat is different on 32 and 64 bit platforms? typedef float CGFloat;// 32-bit typedef double CGFloat;// 64-bit warmest regards, Ralph Raffael Cavallaro raffaelcavall...@me.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
[Moderator] Re: +Hi+
Because every message isn’t moderated. Only new users. He’s likely posted reasonable messages in the past. This looks like his machine either has a virus, or he decided to send to his entire mailing list. If every message was moderated, it would be a full-time job. As it is, I volunteer to do this during my down time at work. On Apr 18, 2010, at 10:58 AM, Joshua Tucker wrote: How did this get past moderation? On 18 Apr 2010, at 15:55, Daniel Grace wrote: http://sites.google.com/site/xcsde4rs/ucfn8w ___ 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: [Moderator] Re: +Hi+
Oh, okay :) No worries! Josh On 18 Apr 2010, at 19:27, Scott Anguish wrote: Because every message isn’t moderated. Only new users. He’s likely posted reasonable messages in the past. This looks like his machine either has a virus, or he decided to send to his entire mailing list. If every message was moderated, it would be a full-time job. As it is, I volunteer to do this during my down time at work. On Apr 18, 2010, at 10:58 AM, Joshua Tucker wrote: How did this get past moderation? On 18 Apr 2010, at 15:55, Daniel Grace wrote: http://sites.google.com/site/xcsde4rs/ucfn8w ___ 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
[Moderator] Re: +Hi+
Messages are not rejected with “No reason”. If they’re autorejected it’s because you’re not subscribed with the address you attempt to send with. Size is another reason they’re rejected, but that note says so. And it’s done manually. And if they are rejected for _any_ other reason, I add info about why. You’ve posted to the list successfully before because your moderation bit is off, otherwise this would have been caught by moderation. This isn’t a moderation issue. scott [moderator] On Apr 18, 2010, at 12:44 PM, Daniel Grace wrote: On Sun, Apr 18, 2010 at 9:58 AM, Joshua Tucker joshualeetuc...@googlemail.com wrote: How did this get past moderation? How indeed. I've sent two messages to the list before that were trying to answer a question and both were rejected for No reason. Someone from the Ukraine gets into my email and sends just a spam link and it gets through? Odd indeed. I've killed all other sessions and changed my password, though. Sorry that it got through... somehow. ___ 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: Text file
On Apr 18, 2010, at 12:40 AM, Henrietta Read wrote: exactly the point germane, but in perusing NSString.h one is given to understand this method might not be as 'smart' as one could wish: I wouldn’t think it would fail with MacRoman, though. Did you check the output NSError? Also, try inspecting the file with a hex editor … maybe there are some invisible null bytes or control characters. What I usually do in cases like this, when trying to decode arbitrary data to strings, is to fall back to assuming NSWindowsCP1252StringEncoding. This is (a) a very common encoding [the default on most Windows systems], (b) fairly standard (it’s a superset of ISO-Latin-1), and (c) always works since it encodes all 256 bytes values. —Jens___ 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
Warning with an initializer method of AMWorkflow
If I try to create an AMWorkflow using the initContentsWithURL:error:
method, I get a warning.
- (id)myRunWorkflowAtURL:(NSURL*)fileURL withInput:(id)workflowInput
error:(NSError**)error
{
NSError* createError = nil;
AMWorkflow* workflow = [[AMWorkflow alloc]
initWithContentsOfURL:fileURL error:createError];
}
warning: incompatible Objective-C types 'struct NSError **', expected
'struct NSDictionary **' when passing argument 2 of
'initWithContentsOfURL:error:' from distinct Objective-C type
The 2nd parameter is documented as NSError** as documented in AMWorkflow.h
- (id)initWithContentsOfURL:(NSURL *)fileURL error:(NSError **)outError;
This appears to happen with either the 10.5 SDK or 10.6 SDK.
I've logged this bug ID# 7877547
I'd like to know how safe it is to ignore the warning or typecast to
remove the warning?
Not sure how else to create this object to work with AMWorkflowController.
Thanks.
--
Mark Munz
unmarked software
http://www.unmarked.com/
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Re: iphone help - saving data
Please reply to list messages on-list. On 18 Apr 2010, at 2:52 PM, Rui Lopes wrote: What is the best option then? SQLite? Please read the documentation I referred you to. It answers your question. The requirements you stated — simple data, no relationships, less than thousands of records (no problem keeping the whole data set in memory) — are best served by the NSCoding/NSCoder facilities, not by Core Data or a relational database. — 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
Re: Warning with an initializer method of AMWorkflow
On Apr 18, 2010, at 2:56 PM, Mark Munz wrote: If I try to create an AMWorkflow using the initContentsWithURL:error: method, I get a warning. warning: incompatible Objective-C types 'struct NSError **', expected 'struct NSDictionary **' when passing argument 2 of 'initWithContentsOfURL:error:' from distinct Objective-C type The 2nd parameter is documented as NSError** as documented in AMWorkflow.h - (id)initWithContentsOfURL:(NSURL *)fileURL error:(NSError **)outError; This appears to happen with either the 10.5 SDK or 10.6 SDK. I've logged this bug ID# 7877547 I'd like to know how safe it is to ignore the warning or typecast to remove the warning? This is the same issue as in this recent thread http://lists.apple.com/archives/cocoa-dev/2010/Apr/msg00816.html. There is a typecast involved in the solution, but probably not the one you're considering. 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
Re: Baffling Button Behavior
On 17 Apr 2010, at 4:32 PM, k...@highrolls.net wrote: I have two buttons in a view, side by side. Their autoresizingMask are both NSViewMaxXMargin + NSViewMaxYMargin When their containing view is resized only the left button behaves properly. The right button stays fixed. Why? Before resize:http://highrolls.net/Before Resize.png After resize:http://highrolls.net/After Resize.png I wish you had provided the real URLs (e.g. http://highrolls.net/After%20Resize.png). I also wish your screen shots showed the enclosing window, so I could tell what resizing was done. Group: There are two buttons visible, Save on the left, and Save As… on the right. In the before picture, they appear side-by-side, with a normal amount of space between them. In the after picture, which I _assume_ comes after the window was resized to be narrower, Save (left) is the same x-distance from the left margin (visually stationary); Save As… (right) has moved to the left so it is under, and half-covered by, Save. The most obvious explanation is that the resizing mask for Save As… contains NSViewMinXMargin (flexible on left) and not NSViewMaxXMargin (flexible on right), despite your intention. Things to try: I would like to see your code in which you set the autoresizing masks, for both buttons. Or if it was done in Interface Builder, please double-check the resizing settings. Verify that the two buttons are embedded in the same view. In the debugger, set a breakpoint in some code where you have access to pointers to the two buttons, after their resizing masks have been set. If you really are using setAutoResizingMask:, breaking right after the second call would do. Then use the Debugger Console for these two commands: p/d (int) [saveButton autoresizingMask] p/d (int) [saveAsButton autoresizingMask] My bet is the two numbers are different. — 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
Re: Weird CGFloat issue
That was it - importing the wrong header. Thanks. Look like a problem where the method declaration does not match exactly the definition (or you call the method without having imported the header and the compiler don't know the method signature). -- 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: Parsing common elements between xml documents
Thanks Jens. I switched to TinyXML to do my xml parsing and things have been going well so far. Since, all the xml documents I will be parsing are pretty small, I think it should be ok (shouldn't cause much of a memory overhead with the DOM route). George On Sat, Apr 17, 2010 at 8:58 PM, Jens Alfke j...@mooseyard.com wrote: On Apr 17, 2010, at 12:42 PM, Malayil George wrote: But, I figure it would be easier if I could set up a parser that would parse B into it's object and return it. So, while parsing A, when I encounter element B, I would like to hand-off the entire B element to my B parser and have it return object B. This way, while parsing doc D, I could do the same thing (and not have to duplicate code for parsing B) and my code is more readable. However, I am not able to figure out how to You can do this with a stream-based parser but it takes a bit of work. You keep a stack of which object you’re currently building, and when you finish an element you pop the corresponding object and hand it to the new top object, to store a reference to it. This sort of thing is easier with a DOM-based parser where you can inspect the entire tree of objects at once, but the Cocoa one (NSXMLDocument) isn’t available on iPhone for some reason. —Jens ___ 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
Introspecting the current method
Hi everyone, I was just writing some code and asked myself a question that I don't know the answer to, and a quick look in the documentation didn't reveal anything promising. If I'm inside a method, is there a way to know at runtime whether that method is a class or an instance method? Currently the only way I though of to do this is to see if self is a Class object or not, but I was wondering if there's a more reliable way to determine this. Any ideas? Thanks, Dave 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: Introspecting the current method
On 19/04/2010, at 10:14 AM, Dave DeLong wrote: If I'm inside a method, is there a way to know at runtime whether that method is a class or an instance method? Currently the only way I though of to do this is to see if self is a Class object or not, but I was wondering if there's a more reliable way to determine this. I might be lacking imagination here, but I can't think of any situation where needing to detect this would make any sense. Methods should be written with this knowledge built-in to them, since they can either function as class methods or instance methods but not both. And client code should also know what it's doing and will call the appropriate method for whatever task it wants the object to carry out. You could ask whether [[self class] instancesRespondToSelector:_cmd] and if it returns YES it's an instance method. But I'm boggling trying to think of a legitimate use case. --Graham ___ 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: Introspecting the current method
On Sun, Apr 18, 2010 at 8:21 PM, Graham Cox graham@bigpond.com wrote: On 19/04/2010, at 10:14 AM, Dave DeLong wrote: If I'm inside a method, is there a way to know at runtime whether that method is a class or an instance method? Currently the only way I though of to do this is to see if self is a Class object or not, but I was wondering if there's a more reliable way to determine this. I might be lacking imagination here, but I can't think of any situation where needing to detect this would make any sense. Language bridging, perhaps. You can build up a class definition at run time, with all of its selectors registered to resolve to a single IMP function. That's how CamelBones registers Perl classes with the ObjC runtime, with messages sent to Perl methods (both class and instance) routed through one IMP function. sherm-- -- Cocoa programming in Perl: http://www.camelbones.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: Introspecting the current method
At runtime, I would use: #define classMethod() (self == [self class]) And just for fun, at compile-time: GCC: #define classMethod() (__builtin_choose_expr( \ __builtin_types_compatible_p(__typeof__(self), \ __typeof__(id)), YES, NO)) LLVM: #define classMethod() (__builtin_choose_expr( \ __builtin_types_compatible_p(__typeof__(self), \ __typeof__(NSObject *)), YES, NO)) Although I don't trust these last two for a second; perhaps a compiler wizard can comment. ___ 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: Zeroing out instance variables
On Sun, Apr 18, 2010 at 2:09 AM, Kyle Sluder kyle.slu...@gmail.com wrote: On Sat, Apr 17, 2010 at 8:29 PM, Ben Haller bhcocoa...@sticksoftware.com wrote: I don't think I'm crazy about this. There are many different subclasses, so each subclass would have its own corresponding struct, and every ivar access would go through an indirection; it sounds very confusing and messy. Not to say there might not be cases where it would be the correct design; but for my situation, I think I'm happier with my current design. Thanks for the suggestion, though! Dirty little secret: every ivar access on 64-bit is already indirected through the runtime. Otherwise the runtime couldn't support non-fragile instance variables. :) You could theoretically get better performance if your instance variable were a pointer-to-struct. But if your way is sufficiently performant, stick with it. If by indirected through the runtime you mean accesses one global variable to get an offset. It does not, as one might take your comment to indicate, actually call any runtime functions. Putting everything in a pointer to a struct won't be faster. You have to access an ivar anyway to get the pointer, and then you've added another dereference before you can get your data. In addition, you've hurt locality of reference, so will probably have worse cache performance characteristics. 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
Re: Introspecting the current method
On Apr 18, 2010, at 7:14 PM, Dave DeLong wrote: If I'm inside a method, is there a way to know at runtime whether that method is a class or an instance method? Keep in mind that class methods are just instance methods, where the instance is the class object. (The class object being an instance of its metaclass.) So, in a deep sense, there's no distinction between a class method and an instance method. There's only the receiver object and the message/selector. 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: How do I get a file reference w/o relying on the path?
The error comes back file does not exist and the NSLog statement shows url =
(null) after I change the name of the file in the Finder. If I change the
file name back to what it was when the bookmark was saved the file opens fine.
I changed my creation option to 0. No difference.
NSData *bookmarkData = [note valueForKey:@bookmarkData];
NSError *error = nil;
BOOL isStale;
NSURL *url = [NSURL URLByResolvingBookmarkData:bookmarkData
options:0 relativeToURL:nil bookmarkDataIsStale:isStale error:error];
NSLog(@url = %@, [url description]);
if (error != nil) {
[NSApp presentError:error];
}
On Apr 18, 2010, at 11:45 AM, Noah Desch wrote:
On Apr 18, 2010, at 10:43 AM, Brad Stone wrote:
I'm storing the bookmark data in an array displayed in a table:
NSData *bookmarkData = [inAbsoluteURL
bookmarkDataWithOptions:NSURLBookmarkCreationSuitableForBookmarkFile
includingResourceValuesForKeys:nil
relativeToURL:nil
error:error];
I am doing the same thing and it is still able to resolve the bookmarks when
the file moves or its name changes. The only real difference I can see
between our two approaches is that I am passing 0 for both the creation
options and the resolution options.
What are the properties of the error object are you getting when the bookmark
resolution fails?
-Noah
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Blend mode 'darken' for NSImage?
I need to combine a number of NSImages such that each pixel of the result is the darkest of the corresponding pixels of the NSImages. Blend mode 'darken' does exactly what I need to, but I'm clueless about how to efficiently apply blend modes to NSImages. An alternative is to use an NSCompositingOperation, but the best candidate NSCompositePlusDarker is not exactly what I need. I could convert my NSImage to a bitmap and do my thing, but fear a performance hit. Any suggestions? Thanks, Izak --- Grinnikend door het leven... ___ 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: Introspecting the current method
Yes, code should obviously be written with this knowledge in mind. The use case I have for it is for macros. I like to use a debugging macro like the following to ensure that methods are getting called (without having to break execution to stop at a breakpoint): #define LogMethod NSLog(@-[%@ %...@], NSStringFromClass([self class]), NSStringFromSelector(_cmd)) This, of course, is only accurate for instance methods (since I'm logging a -). I was just wondering if there was a way I could use some sort of introspection to appropriately place a + or a -. I like the ([self class] == self) method, simply because it's shorter, but the [[self class] instancesRespondToSelector:_cmd] is also a great solution. Thanks for the ideas! Dave On Apr 18, 2010, at 6:21 PM, Graham Cox wrote: On 19/04/2010, at 10:14 AM, Dave DeLong wrote: If I'm inside a method, is there a way to know at runtime whether that method is a class or an instance method? Currently the only way I though of to do this is to see if self is a Class object or not, but I was wondering if there's a more reliable way to determine this. I might be lacking imagination here, but I can't think of any situation where needing to detect this would make any sense. Methods should be written with this knowledge built-in to them, since they can either function as class methods or instance methods but not both. And client code should also know what it's doing and will call the appropriate method for whatever task it wants the object to carry out. You could ask whether [[self class] instancesRespondToSelector:_cmd] and if it returns YES it's an instance method. But I'm boggling trying to think of a legitimate use case. --Graham 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: Introspecting the current method
On Sun, Apr 18, 2010 at 10:15 PM, Dave DeLong davedel...@me.com wrote: Yes, code should obviously be written with this knowledge in mind. The use case I have for it is for macros. I like to use a debugging macro like the following to ensure that methods are getting called (without having to break execution to stop at a breakpoint): #define LogMethod NSLog(@-[%@ %...@], NSStringFromClass([self class]), NSStringFromSelector(_cmd)) This, of course, is only accurate for instance methods (since I'm logging a -). I was just wondering if there was a way I could use some sort of introspection to appropriately place a + or a -. I like the ([self class] == self) method, simply because it's shorter, but the [[self class] instancesRespondToSelector:_cmd] is also a great solution. The magic __func__ identifier produces a C string which I believe, in an ObjC method, has exactly the format you're looking for. 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
Re: Introspecting the current method
That's amazing! Is there some sort of coherent list of magic identifiers somewhere? Dave On Apr 18, 2010, at 8:21 PM, Michael Ash wrote: The magic __func__ identifier produces a C string which I believe, in an ObjC method, has exactly the format you're looking for. 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: Introspecting the current method
On Apr 18, 2010, at 9:21 PM, Michael Ash wrote: On Sun, Apr 18, 2010 at 10:15 PM, Dave DeLong davedel...@me.com wrote: Yes, code should obviously be written with this knowledge in mind. The use case I have for it is for macros. I like to use a debugging macro like the following to ensure that methods are getting called (without having to break execution to stop at a breakpoint): #define LogMethod NSLog(@-[%@ %...@], NSStringFromClass([self class]), NSStringFromSelector(_cmd)) This, of course, is only accurate for instance methods (since I'm logging a -). I was just wondering if there was a way I could use some sort of introspection to appropriately place a + or a -. I like the ([self class] == self) method, simply because it's shorter, but the [[self class] instancesRespondToSelector:_cmd] is also a great solution. The magic __func__ identifier produces a C string which I believe, in an ObjC method, has exactly the format you're looking for. And, if not, then one of __FUNCTION__ or __PRETTY_FUNCTION__ probably does. 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
Re: Introspecting the current method
Actually, I just found it! http://developer.apple.com/mac/library/documentation/DeveloperTools/gcc-4.0.1/cpp/Standard-Predefined-Macros.html#Standard-Predefined-Macros This will certainly suit my purposes what I was needing. However, the check of [self class] == self is still really useful. Thanks everyone! Dave On Apr 18, 2010, at 8:26 PM, Dave DeLong wrote: That's amazing! Is there some sort of coherent list of magic identifiers somewhere? Dave On Apr 18, 2010, at 8:21 PM, Michael Ash wrote: The magic __func__ identifier produces a C string which I believe, in an ObjC method, has exactly the format you're looking for. ___ 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/davedelong%40me.com This email sent to davedel...@me.com 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: Introspecting the current method
On Apr 18, 2010, at 9:26 PM, Dave DeLong wrote: That's amazing! Is there some sort of coherent list of magic identifiers somewhere? http://gcc.gnu.org/onlinedocs/gcc/C-Extensions.html http://gcc.gnu.org/onlinedocs/gcc/Function-Names.html 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
Re: How do I get a file reference w/o relying on the path?
On Apr 18, 2010, at 9:43 AM, Brad Stone wrote: I'm storing the bookmark data in an array displayed in a table: NSData *bookmarkData = [inAbsoluteURL bookmarkDataWithOptions:NSURLBookmarkCreationSuitableForBookmarkFile includingResourceValuesForKeys:nil relativeToURL:nil error:error]; When the user double clicks on the row in the table I want to open the file. I use this: NSError *error; BOOL isStale; NSURL *url = [NSURL URLByResolvingBookmarkData:bookmarkData options:NSURLBookmarkResolutionWithoutUI relativeToURL:nil bookmarkDataIsStale:isStale error:error]; When the file's name or directory changes on my hard drive the resolved url == nil. I'd like it to resolve to the actual file even if my app is closed and opened again (I'm saving the bookmarkData to repopulate the table the next time the user opens my app). I thought that's what bookmarks did in 10.6 - I could be wrong. An ugly workaround would be when the user double-clicks for me to create an actual alias file in a temp folder from the bookmark data and store that in my array, recreate it in a temp folder and launch that. I'm sure that's wrong - there has got to be a better way. Hmm... have you tried converting the URL to a file reference URL first via its -fileReferenceURL method, and then generating a bookmark from that? Charles___ 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 do I get a file reference w/o relying on the path?
Are you sure the data is being stored into your note dictionary correctly?
Here is my bookmark resolution code, it looks almost exactly like yours. I'm
running on 10.6.3 and building for 10.6 with GC off.
- (NSURL *)resolveBookmarkData:(NSData *)bookmark
withOptions:(NSURLBookmarkResolutionOptions)options needsUpdate:(BOOL *)stale
{
NSURL *url;
NSError *error;
NSMutableDictionary *userInfo;
error = Nil;
*stale = NO;
url = [NSURL URLByResolvingBookmarkData:bookmark options:options
relativeToURL:Nil bookmarkDataIsStale:stale error:error];
if ( url ) {
return url;
}
if ( error [[error domain] isEqualTo:NSCocoaErrorDomain] [error
code] == NSFileNoSuchFileError ) {
// error presentation and resolution code follows...
-Noah
On Apr 18, 2010, at 10:08 PM, Brad Stone wrote:
The error comes back file does not exist and the NSLog statement shows url
= (null) after I change the name of the file in the Finder. If I change the
file name back to what it was when the bookmark was saved the file opens
fine. I changed my creation option to 0. No difference.
NSData *bookmarkData = [note valueForKey:@bookmarkData];
NSError *error = nil;
BOOL isStale;
NSURL *url = [NSURL URLByResolvingBookmarkData:bookmarkData
options:0 relativeToURL:nil bookmarkDataIsStale:isStale error:error];
NSLog(@url = %@, [url description]);
if (error != nil) {
[NSApp presentError:error];
}
On Apr 18, 2010, at 11:45 AM, Noah Desch wrote:
On Apr 18, 2010, at 10:43 AM, Brad Stone wrote:
I'm storing the bookmark data in an array displayed in a table:
NSData *bookmarkData = [inAbsoluteURL
bookmarkDataWithOptions:NSURLBookmarkCreationSuitableForBookmarkFile
includingResourceValuesForKeys:nil
relativeToURL:nil
error:error];
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Re: Zeroing out instance variables
On Apr 18, 2010, at 6:52 PM, Michael Ash michael@gmail.com wrote: If by indirected through the runtime you mean accesses one global variable to get an offset. It does not, as one might take your comment to indicate, actually call any runtime functions. If that's the case, how can the language support reordering instance variables? The only way I can see o support taking the address of an instance variable is to convert ivar into a runtime call. --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: Blend mode 'darken' for NSImage?
Ah, so your problem is that not every CG blend mode is available as an NSCompositingOperation? If you would, please file a quick bug mentioning that you needed this. If you're running on 10.6, you can use -[NSImage CGImageForProposedRect:context:hints:] to get a CGImage, then draw the CGImage with your blend mode. See the AppKit relnotes for details, but that's likely to be efficient. If that method isn't available, you can get the same end effect by taking a destination CGContext, setting the blend mode to darken, starting a transparency layer, drawing the NSImage in copy or source over mode, and ending the transparency layer. The layers contents are composited to the context in darken mode. Repeat for each NSImage. Perf-wise, this is like drawing each image once in copy mode and once in darken mode. Copy mode is vectorized, darken mode isn't, so I would expect to see most of your time in CGContextEndTransparencyLayer for images of reasonable size. -Ken Sent from my iPhone, so be forgiving. On Apr 18, 2010, at 7:14 PM, Izak van Langevelde eezac...@xs4all.nl wrote: I need to combine a number of NSImages such that each pixel of the result is the darkest of the corresponding pixels of the NSImages. Blend mode 'darken' does exactly what I need to, but I'm clueless about how to efficiently apply blend modes to NSImages. An alternative is to use an NSCompositingOperation, but the best candidate NSCompositePlusDarker is not exactly what I need. I could convert my NSImage to a bitmap and do my thing, but fear a performance hit. Any suggestions? Thanks, Izak --- Grinnikend door het leven... ___ 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/kenferry%40gmail.com This email sent to kenfe...@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: Zeroing out instance variables
On Sun, Apr 18, 2010 at 10:58 PM, Kyle Sluder kyle.slu...@gmail.com wrote:
On Apr 18, 2010, at 6:52 PM, Michael Ash michael@gmail.com wrote:
If by indirected through the runtime you mean accesses one global
variable to get an offset. It does not, as one might take your
comment to indicate, actually call any runtime functions.
If that's the case, how can the language support reordering instance
variables? The only way I can see o support taking the address of an
instance variable is to convert ivar into a runtime call.
Why not take a look for yourself?
$ cat ivartest.m
#import Cocoa/Cocoa.h
@interface Foo : NSObject { id ivar; } @end
@implementation Foo
- (void)testMethod {
ivar = nil;
}
@end
$ gcc -c ivartest.m
$ otool -tV ivartest.o
ivartest.o:
(__TEXT,__text) section
-[Foo testMethod]:
pushq %rbp
0001movq%rsp,%rbp
0004movq%rdi,0xf8(%rbp)
0008movq%rsi,0xf0(%rbp)
000cmovq0xf8(%rbp),%rdx
0010movq_OBJC_IVAR_$_Foo.ivar(%rip),%rax
0017movq(%rax),%rax
001aleaq(%rdx,%rax),%rax
001emovq$-[Foo testMethod],(%rax)
0025leave
0026ret
As you can see, the offset of the ivar itself is referenced as a
linker symbol which will then get resolved at load time. And you can
see that no function calls take place.
Mike
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Re: Blend mode 'darken' for NSImage?
On 2010-04-18, at 11:00 PM, Ken Ferry wrote: Ah, so your problem is that not every CG blend mode is available as an NSCompositingOperation? If you would, please file a quick bug mentioning that you needed this. From the documentation: The compositing operations are related to (but different from) the blend mode settings used in Quartz. They are different, so I don't consider it a bug... If you're running on 10.6, you can use -[NSImage CGImageForProposedRect:context:hints:] to get a CGImage, then draw the CGImage with your blend mode. I don't want to draw anything, I want an NSImage, and I'm not wildly enthusiastic about drawing everything in a dummy view and then peeling out an NSImage... Thanks, Izak --- Grinnikend door het leven... ___ 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: Blend mode 'darken' for NSImage?
On Sun, Apr 18, 2010 at 8:30 PM, Izak van Langevelde eezac...@xs4all.nlwrote: On 2010-04-18, at 11:00 PM, Ken Ferry wrote: Ah, so your problem is that not every CG blend mode is available as an NSCompositingOperation? If you would, please file a quick bug mentioning that you needed this. From the documentation: The compositing operations are related to (but different from) the blend mode settings used in Quartz. They are different, so I don't consider it a bug... The two sets used to be unrelated, but at this point the blend modes are a superset of the compositing operations. If you're running on 10.6, you can use -[NSImage CGImageForProposedRect:context:hints:] to get a CGImage, then draw the CGImage with your blend mode. I don't want to draw anything, I want an NSImage, and I'm not wildly enthusiastic about drawing everything in a dummy view and then peeling out an NSImage... Ah - you don't need a dummy view. And as far as drawing, what is drawing but copying bytes from here to there? :-) We're optimized for drawing, it's not something you want to avoid relative to direct byte access. Think about how often we have to draw. See AppKit relnotes for more discussion of what's fast and what's not. If you tried to get direct access to the bytes of an NSBitmapImageRep, that'd effectively draw the rep, as discussed in the notes. CGContextRef ctx = CGBitmapContextCreate(NULL/*CG allocates its own data*/, dstWidth, dstHeight, 8/*bitsPerComponent*/, 0/*bytesPerRow - since CG is allocating the data, let it choose bytesPerRow as it sees best*/, colorSpace/*perhaps [[NSColorSpace sRGBColorSpace] CGColorSpace]*/, kCGBitmapByteOrder32Host|kCGImageAlphaPremultipliedFirst); CGContextClearRect(CGRectMake(0,0,dstWidth,dstHeight)); // drawing goes here - either by getting CGImage and drawing it (preferred on 10.6) or with transparency layer trick above. CGImageRef im_cg = CGBitmapContextCreateImage(ctx); CFRelease(ctx); NSImage *im = [[NSImage alloc] initWithCGImage:im_cg size:NSZeroSize/*take size from the CGImage*/]; CFRelease(im_cg); This ought to outperform anything you would do by hand (er, provided what you would do by hand gets colorspace handling correct). -Ken Cocoa Frameworks Thanks, Izak --- Grinnikend door het leven... ___ 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: Zeroing out instance variables
On Apr 18, 2010, at 8:13 PM, Michael Ash michael@gmail.com wrote: As you can see, the offset of the ivar itself is referenced as a linker symbol which will then get resolved at load time. And you can see that no function calls take place. For some reason I assumed that symbol held the Ivar struct. Which wouldn't affect the ability to store the address of the instance variable. 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/kyle.sluder%40gmail.com This email sent to kyle.slu...@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
