NSTreeController/OutlineView w/CoreData Bindings multiple selection?
I have an NSTreeController and outline view displaying a hierarchy of Group objects. This works fine. The NSTreeController is bound to the managed object context, and uses a fetch predicate of parent == nil. It won't let me select more than one row. Is it simply not possible to do so? TIA, Rick ___ 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: NS_INLINE and obj = nil;?
On Jan 3, 2010, at 5:26 PM, Scott Ribe wrote: Easily fixed: #define GDRelease(x) [(x) release], (x) = nil, (void)0 Not really a good fix; compiler error is preferable to tweaking your macro to allow compilation of nonsense ;-) Actually this causes a compiler error if you try if (GDRelease(...)). --Andy ___ 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
Simple Core Data problem - zombie objects left in store
Hi folks Happy New Year, I'm not sure why this is a problem as I've done this before now, so can't quite see the problem. This is all on 10.6.2 in a Core Data app (i.e. non-document-based). Despite re-reading the Core Data Programming Topics Marcus Zarra's (excellent) book, I'm stumped as to why I'm getting the problem I am. I've distilled it into a sample app with XML store, so I can 'read' the store etc. In the sample app I have Department and Person objects. Department has an optional to-many relationship 'people', with a cascade delete rule. Person has a non-optional to-one relationship 'department' (which is the inverse of the other relationship), with a nullify delete rule. If I add a new person in a given department, all is well (app can be quit / relaunched, everything is as it should be). If I then remove that person, all seems well. Until the store tries to save, at which point I get a department is a required value error. I then quit anyway, relaunch, and the person is back from the dead. If I make the person's 'department' relationship optional, then it's quite happy saving the store after I delete a person. However if I then open up the XML store, the person is lingering on in cryogenic storage, with no owning department, i.e. they were removed from the department, but not deleted from the store. Bearing in mind this is after the app has quit, so can't be the Undo manager etc. retaining them for its own needs. The button doing the removing is hooking up to the 'remove' action of the People array controller, which in turn binds its content set to the Departments array controller (controller key = selection, model key path = people). So it seems the array controller is not trying to remove the Person object, but just trying to break its relationship to its containing Department. I'm missing something brain-numbingly obvious aren't I? :) Thanks in advance for pointing out my stupidity, Ken p.s. I've checked and the app delegate is definitely using NSXMLStoreType, not NSCryogeneticStoreType ;) - - - - - - - - - - Dr. Ken Tabb Mac UNIX Developer - Health Human Sciences Machine Vision Neural Network researcher - School of Computer Science University of Hertfordshire, 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
NSDate without time portion
Hi All, What's the best way to get an NSDate object for 'today' such that the time is 00:00:00 (or any other constant). I not interested in the time, I only care about the year-month-day, but I do need the the hours-minutes-seconds to be the same on all dates so that I can compare the dates. Currently I do this: NSDateFormatter *dateFmter = [[NSDateFormatter alloc] init]; [dateFmter setTimeStyle:NSDateFormatterNoStyle]; [dateFmter setDateStyle:NSDateFormatterMediumStyle]; NSString dateText = [ dateFmter stringFromDate: self.now ]; // !! !! I need dateText anyway self.now = [ dateFmter dateFromString: dateText ]; // !! truncate time to 00:00:00 But this seems ugly, cumbersome and inefficient. The other option might be to use NSDate, NSCalendar and NSDateComponents, but that seems to be even more ugly and cumbersome and probably more inefficient. Something like NSDate dateForTodayWithNoTimeComponentPleaseKTHXBAI would be good. Regards, Brian. (Apologies for gratuitous LOLspeak)___ 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
IGNORE ME: Simple Core Data problem - zombie objects left in store
Hi again folks, of course, the IB Deletes objects on remove option for the People array controller had something to do with it... sigh... Sorry for filling up your Inboxes... Ken On 4 Jan 2010, at 10:14, Tabb, Ken wrote: Hi folks Happy New Year, I'm not sure why this is a problem as I've done this before now, so can't quite see the problem. This is all on 10.6.2 in a Core Data app (i.e. non-document-based). Despite re-reading the Core Data Programming Topics Marcus Zarra's (excellent) book, I'm stumped as to why I'm getting the problem I am. I've distilled it into a sample app with XML store, so I can 'read' the store etc. In the sample app I have Department and Person objects. Department has an optional to-many relationship 'people', with a cascade delete rule. Person has a non-optional to-one relationship 'department' (which is the inverse of the other relationship), with a nullify delete rule. If I add a new person in a given department, all is well (app can be quit / relaunched, everything is as it should be). If I then remove that person, all seems well. Until the store tries to save, at which point I get a department is a required value error. I then quit anyway, relaunch, and the person is back from the dead. If I make the person's 'department' relationship optional, then it's quite happy saving the store after I delete a person. However if I then open up the XML store, the person is lingering on in cryogenic storage, with no owning department, i.e. they were removed from the department, but not deleted from the store. Bearing in mind this is after the app has quit, so can't be the Undo manager etc. retaining them for its own needs. The button doing the removing is hooking up to the 'remove' action of the People array controller, which in turn binds its content set to the Departments array controller (controller key = selection, model key path = people). So it seems the array controller is not trying to remove the Person object, but just trying to break its relationship to its containing Department. I'm missing something brain-numbingly obvious aren't I? :) Thanks in advance for pointing out my stupidity, Ken p.s. I've checked and the app delegate is definitely using NSXMLStoreType, not NSCryogeneticStoreType ;) - - - - - - - - - - Dr. Ken Tabb Mac UNIX Developer - Health Human Sciences Machine Vision Neural Network researcher - School of Computer Science University of Hertfordshire, 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/k.j.tabb %40herts.ac.uk This email sent to k.j.t...@herts.ac.uk - - - - - - - - - - Dr. Ken Tabb Mac UNIX Developer - Health Human Sciences Machine Vision Neural Network researcher - School of Computer Science University of Hertfordshire, 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: Need font anti aliasing techniques
On Monday, January 4, 2010, padmakumar padmaku...@tataelxsi.co.in wrote: What are all the ways we can programmatically make anti aliasing techniques for texts displayed in NSTextField. regards PK Try this: http://tinyurl.com/anel Or this is shorter easier to read: http://tinyurl.com/l2fucm This is also a good resource: http://whathaveyoutried.com/ Failing that, this example is quite helpful to some: http://lmgtfy.com/?q=anti-aliasing+cocoa ___ 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
Implementing search field in core-data app
Dear list, I have a fairly basic core-data model with a set of Category entities, each category contains then a set of Item entities. What I want to do is implement a search field which searches all items from all categories - something like the searching is done in Mail.app. I'm not really sure how to go about this. I've tried binding the predicate bindings of an NSSearchField to the Item array controller, but this only searches in the items of the currently selected category (since the array controller is bound to categorycontroller.selection.items). I also tried making another array controller which contains all items and then set a filter predicate on this depending on the user having chosen a state: 'all categories' or 'currently selected category'. Then I bound my table view to this 'all items array controller'. But this is not so nice since the relationship between categories and items is not automatically handled. Is there a 'correct' way to attack such a problem, or has someone else managed to implement a search interface something like Mail.app? Best wishes, Martin Martin Hewitson Albert-Einstein-Institut Max-Planck-Institut fuer Gravitationsphysik und Universitaet Hannover Callinstr. 38, 30167 Hannover, Germany Tel: +49-511-762-17121, Fax: +49-511-762-5861 E-Mail: martin.hewit...@aei.mpg.de WWW: http://www.aei.mpg.de/~hewitson ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
How to find that my app is running under same security session in fast user switch
Hi all My app can run multiple instances of itself for different users. I want to check that in case of a fast user switch, If my app is requesting data from port of other user, then i should block this attempt. one suggested approach is to use Security/AuthSession.h which has *SessionGetInfo*(callerSecuritySession, mySession, sessionInfo); This gives me the bits like *sessionHasGraphicAccess*, *sessionIsRoot,* and others Here i am getting the SecuritySessionId for my process. I am confused that from which id/bit i should compare this id to get the info about this - Form where my app is running and from where it is getting served are running in the same security session Please correct my understanding. I am confused with global and per-user window-server. -- -- Warm Regards, Parimal Das ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Why is [NSArray arrayWithObjects:] failing for me?
Thank you to all who offered your expertise! Whatta dumb mistake! I thought all objects were retained once when created, not auto-released. Gah! I've been programming for 20+ years--mostly with C++ and C#. Cocoa-ObjC has the steepest learning curve of any programming I have ever done. It makes me feel like an idiot, so you can certainly expect to see more of these noobish questions from me... Thanks in advance for your help and patience! ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Why is [NSArray arrayWithObjects:] failing for me?
Essential reading: http://developer.apple.com/mac/library/documentation/cocoa/Conceptual/MemoryMgmt/MemoryMgmt.html The 'memory management rules' are not complex. A much bigger problem is avoiding memory leaks. Paul Sanders. - Original Message - From: Charles Jenkins cjenk...@tec-usa.com To: Cocoa-Dev List cocoa-dev@lists.apple.com Sent: Monday, January 04, 2010 12:44 PM Subject: Re: Why is [NSArray arrayWithObjects:] failing for me? Thank you to all who offered your expertise! Whatta dumb mistake! I thought all objects were retained once when created, not auto-released. Gah! I've been programming for 20+ years--mostly with C++ and C#. Cocoa-ObjC has the steepest learning curve of any programming I have ever done. It makes me feel like an idiot, so you can certainly expect to see more of these noobish questions from me... Thanks in advance for your help and patience! ___ 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: Setting NSWindow titlebar height
On 3 Jan 2010, at 19:41, PCWiz wrote: I have a window that looks like this right now: http://img22.imageshack.us/img22/2953/screenshot20100103at123.png I've removed the titlebar buttons and everything Why? How does the user make the Window go away/hide without the title bar buttons? Perhaps I'm being unfair since I don't know what this window is for, but it seems like a huge waste of time and energy to try to do difficult things that break the Apple human interface guidelines. , however there is still that space at the top where the titlebar usually is. Is there a way to remove that space (in other words, a way to set the height of the title bar?). Moving up the NSToolbar would work too, is that possible? Independent Cocoa Developer, Macatomy Software http://macatomy.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/adc%40jeremyp.net This email sent to a...@jeremyp.net __ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email __ ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Why is [NSArray arrayWithObjects:] failing for me?
On 2010-01-03 00:08, Eric Smith wrote: Correct, do not release the array. If you don't create it with init, or retain it, then you should not release it. Eric, thank you for stating that rule. It should be easy enough to remember and help me avoid this problem in the future. In my defense, there seems to be a bug in the latest XCode, which make strings stored in NSArrays look like garbage when inspected during debugging. So the elements of pnl appeared to be trashed immediately upon creation. That's why I was looking for the bug in the wrong place. Does anyone else find XCode extremely buggy? I have to continually close and reopen my editing window because the code display gets trashed and appears to scramble my code. It doesn't really change the source code file; it just makes it look as if I've randomly gone through the file deleting stuff, and when I see that happen, I immediately save, close, and reopen the window, and everything is fine. Mac software is usually first class, stable, and beautiful. How do folks write such great software when they're stuck with such a sub-par IDE? :-) ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Why is [NSArray arrayWithObjects:] failing for me?
On 4.1.2010, at 13:44, Charles Jenkins wrote: Thank you to all who offered your expertise! Whatta dumb mistake! I thought all objects were retained once when created, not auto-released. Gah! I've been programming for 20+ years--mostly with C++ and C#. Cocoa-ObjC has the steepest learning curve of any programming I have ever done. Strange that you feel so. I’d say C++ is way more complex - although I did 20+ years of C++ coding and only 2 of ObjC/Cocoa. But in any case you can take the whole retain/release problem out of your learning curve by switching to GC - unless you are targeting the iPhone. It makes me feel like an idiot, so you can certainly expect to see more of these noobish questions from me... Thanks in advance for your help and patience! Kai___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Why is [NSArray arrayWithObjects:] failing for me?
On 04/01/2010, at 11:58 PM, Charles Jenkins wrote: On 2010-01-03 00:08, Eric Smith wrote: Correct, do not release the array. If you don't create it with init, or retain it, then you should not release it. Eric, thank you for stating that rule. It should be easy enough to remember and help me avoid this problem in the future. One of the rules of this forum is don't restate the memory management rules, but instead point to the relevant documentation. While the gist of what Eric says is right, it's incomplete and potentially misleading, especially as 'init' does not create anything. In my defense, there seems to be a bug in the latest XCode, which make strings stored in NSArrays look like garbage when inspected during debugging. So the elements of pnl appeared to be trashed immediately upon creation. That's why I was looking for the bug in the wrong place. The debugger is gdb - Xcode merely acts as a window for it. I think I have seen the same effect but I don't think it's Xcode's fault necessarily. Ensure you are properly compiling for debug with no optimisation and so on. Does anyone else find XCode extremely buggy? I have to continually close and reopen my editing window because the code display gets trashed and appears to scramble my code. It doesn't really change the source code file; it just makes it look as if I've randomly gone through the file deleting stuff, and when I see that happen, I immediately save, close, and reopen the window, and everything is fine. Mac software is usually first class, stable, and beautiful. How do folks write such great software when they're stuck with such a sub-par IDE? :-) I haven't experienced this. Some other minor irritations for sure, but nothing major. On the whole I've found Xcode to be pretty solid. It might be worth taking this up on the xcode users list, or at least having a look through its archives to see if it's a common problem. --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: Why is [NSArray arrayWithObjects:] failing for me?
On 04-Jan-2010, at 8:58 PM, Charles Jenkins wrote: On 2010-01-03 00:08, Eric Smith wrote: Correct, do not release the array. If you don't create it with init, or retain it, then you should not release it. Eric, thank you for stating that rule. It should be easy enough to remember and help me avoid this problem in the future. With respect to Eric, that's part of the rule, the rules are in the memory management guide and it's better to read them in full from the apple documentation than paraphrase them. In my defense, there seems to be a bug in the latest XCode, which make strings stored in NSArrays look like garbage when inspected during debugging. So the elements of pnl appeared to be trashed immediately upon creation. That's why I was looking for the bug in the wrong place. Does anyone else find XCode extremely buggy? I have to continually close and reopen my editing window because the code display gets trashed and appears to scramble my code. It doesn't really change the source code file; it just makes it look as if I've randomly gone through the file deleting stuff, and when I see that happen, I immediately save, close, and reopen the window, and everything is fine. Mac software is usually first class, stable, and beautiful. How do folks write such great software when they're stuck with such a sub-par IDE? :-) I've found XCode, especially the recent releases, to be very good indeed. Certainly the XCode released with Snow Leopard (and since updated) is stable and I've not had any of those issues with it myself. If you have repeatable issues with XCode there is an XCode users list with a lot of helpful people on it and a couple of the toolchain guys from Apple do read it from time to time and reply also. I've had several questions answered there (mostly about how to do X or Y, XCode has a bit of a learning curve especially when you start to get creative with targets and executables). ___ 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/rols%40rols.org This email sent to r...@rols.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: Why is [NSArray arrayWithObjects:] failing for me?
On 4.1.2010, at 13:58, Charles Jenkins wrote: On 2010-01-03 00:08, Eric Smith wrote: Correct, do not release the array. If you don't create it with init, or retain it, then you should not release it. Eric, thank you for stating that rule. It should be easy enough to remember and help me avoid this problem in the future. In my defense, there seems to be a bug in the latest XCode, which make strings stored in NSArrays look like garbage when inspected during debugging. So the elements of pnl appeared to be trashed immediately upon creation. That's why I was looking for the bug in the wrong place. Yes, the data formatters in the debugger do not always work. Typing po object (e.g. po [pnl objectAtIndex:0]) normally works. po stand for print object. Does anyone else find XCode extremely buggy? Not at all. For me Xcode is extremely robust and a lot of fun to use. I use the latest version under Snow Leopard, but it was mostly the same under Leopard, too. My impression was that Xcode gained a lot of robustness when it was switched to GC. I have to continually close and reopen my editing window because the code display gets trashed and appears to scramble my code. It doesn't really change the source code file; it just makes it look as if I've randomly gone through the file deleting stuff, and when I see that happen, I immediately save, close, and reopen the window, and everything is fine. Sounds scary, i’ve never seen this. Mac software is usually first class, stable, and beautiful. How do folks write such great software when they're stuck with such a sub-par IDE? :-) They aren’t. There must be something very special with your setup. Best Kai ___ 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
Animating an NSView in from Below.
I know there are tutorials like Marcus Zarras which shows how to change from one view to another, but I would like to animate in a view which isn't going to replace another view. Here's what I have at the moment:http://drp.ly/9w86s (Test App). The view seems to slide in but the view isn't actually displayed. What's wrong? 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: iPhone: load cell from XIB slows down tableview?
John,
I had a similar issue. For me the problem turned out to be that the
reusableId was not being set as it was imported from the nib. Thus the
call dequeue one was always retuning nil. I solved this by building
the cell by hand and calling the correct init method so the reusableid
was being set and all works well now. Let me know if there is a better
solution.
Regards
Damien
Sent from my iPhone 3GS
On 04/01/2010, at 3:33 PM, John Michael Zorko jmzo...@mac.com wrote:
Hello, all ...
I'm trying to determine why my tableviews scroll so jerkily on
non-3GS devices. The datasource only has perhaps 170 records, so I
think it may have something to do with how i'm instantiating the
cells in -tableView:cellForRowAtIndexPath. In other apps i've done,
I create the view for the cell programmatically, and alloc / init
the cell if I can't dequeue it. However, in this app, I have the
cell's view loaded from a XIB. Is there a better way of defining my
cell's view with IB that still results in a performant tableview?
- (UITableViewCell *)tableView:(UITableView *)tableViewIn
cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *cellID = @mycellID;
MyAppDelegate *appDelegate = (MyAppDelegate *)[[UIApplication
sharedApplication] delegate];
LogDailyCell *cell = (LogDailyCell *)[tableViewIn
dequeueReusableCellWithIdentifier:cellID];
if (nil == cell)
{
NSArray *nib = [[NSBundle mainBundle]
loadNibNamed:@LogDailyCell
owner:self
options:nil];
for (id oneObject in nib)
{
if ([oneObject isKindOfClass:[LogDailyCell class]])
{
cell = (LogDailyCell *)oneObject;
break;
}
}
}
MyObject *act = nil;
switch(indexPath.section)
{
case 0:
act = [appDelegate array1ItemAtIndex:indexPath.row];
cell.type = 2;
break;
case 1:
act = [appDelegate array2ItemAtIndex:indexPath.row];
cell.type = 3;
break;
case 2:
act = [appDelegate array3ItemAtIndex:indexPath.row];
cell.type = 4;
break;
case 3:
act = [appDelegate array4ItemAtIndex:indexPath.row];
cell.type = 5;
break;
}
cell.name.text = act.name;
cell.label1.text = [NSString stringWithFormat:@%i,
act.anNSString];
cell.field1.text = @;
cell.field2.text = @;
cell.ident = indexPath.row;
[cell.deleteButton removeFromSuperview];
return cell;
}
Regards,
John
___
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Re: Why is [NSArray arrayWithObjects:] failing for me?
Does anyone else find XCode extremely buggy? I have to continually close and reopen my editing window because the code display gets trashed and appears to scramble my code. It doesn't really change the source code file; it just makes it look as if I've randomly gone through the file deleting stuff, and when I see that happen, I immediately save, close, and reopen the window, and everything is fine. This bug occurs for me fairly often - it usually happens when doing something using auto-completion. Luckily, as you said, it doesn't actually corrupt the file. :) ___ 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 garbage collection
On Jan 3, 2010, at 18:21, Ben Haller wrote: Bill, I for one would like to hear a bit more about this. What has changed in SL? Why would it ever be possible to outrun the collector? If the limit of memory is being reached, can't it always just do an immediate, synchronous collection before the call to +alloc returns? I'd love to have a better understanding of what's going on under the hood here... I think this: http://lists.apple.com/archives/Cocoa-dev/2009/Jun//msg01586.html is the thread where b.bum threw some light on that issue. (But I didn't reread the whole thing, so some of what I remember may be from a different thread.) ___ 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: Animating an NSView in from Below.
On 05/01/2010, at 12:16 AM, Joshua Garnham wrote: I know there are tutorials like Marcus Zarras which shows how to change from one view to another, but I would like to animate in a view which isn't going to replace another view. Here's what I have at the moment:http://drp.ly/9w86s (Test App). The view seems to slide in but the view isn't actually displayed. What's wrong? The view 'secondView' is not part of the window, so there's nothing to display. All your code is doing is shrinking the first view, which is part of the window because you added it in IB. You need to add 'secondView' to the window's content using [[window contentView] addSubview:secondView] at the start of the animation. I realise you're only trying out a few ideas, but don't get carried away with this design - you need to move this stuff into a proper controller for your window. --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: Why is [NSArray arrayWithObjects:] failing for me?
On Jan 4, 2010, at 7:58 AM, Charles Jenkins wrote: On 2010-01-03 00:08, Eric Smith wrote: Correct, do not release the array. If you don't create it with init, or retain it, then you should not release it. Eric, thank you for stating that rule. It should be easy enough to remember and help me avoid this problem in the future. That rule isn't complete. Just read the published memory management docs that someone else linked for you--several times. In my defense, there seems to be a bug in the latest XCode, which make strings stored in NSArrays look like garbage when inspected during debugging. So the elements of pnl appeared to be trashed immediately upon creation. That's why I was looking for the bug in the wrong place. Does anyone else find XCode extremely buggy? I have to continually close and reopen my editing window because the code display gets trashed and appears to scramble my code. It doesn't really change the source code file; it just makes it look as if I've randomly gone through the file deleting stuff, and when I see that happen, I immediately save, close, and reopen the window, and everything is fine. Mac software is usually first class, stable, and beautiful. How do folks write such great software when they're stuck with such a sub- par IDE? :-) I don't find it buggy. I find it first class, stable and beautiful. ___ 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: Animating an NSView in from Below.
Joshua, you are only setting the frames of your views but you never add secondView as a subview of your window. Florian. On 04 Jan 2010, at 14:16, Joshua Garnham wrote: I know there are tutorials like Marcus Zarras which shows how to change from one view to another, but I would like to animate in a view which isn't going to replace another view. Here's what I have at the moment:http://drp.ly/9w86s (Test App). The view seems to slide in but the view isn't actually displayed. What's wrong? 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/florian.soenens%40nss.be This email sent to florian.soen...@nss.be Looking for Web-to-Print Solutions? Visit our website : http://www.vit2print.com This e-mail, and any attachments thereto, is intended only for use by the addressee(s) named herein and may contain legally privileged and/or confidential information and/or information protected by intellectual property rights. If you are not the intended recipient, please note that any review, dissemination, disclosure, alteration, printing, copying or transmission of this e-mail and/or any file transmitted with it, is strictly prohibited and may be unlawful. If you have received this e-mail by mistake, please immediately notify the sender and permanently delete the original as well as any copy of any e-mail and any printout thereof. We may monitor e-mail to and from our network. NSS nv Tieltstraat 167 8740 Pittem Belgium ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Why is [NSArray arrayWithObjects:] failing for me?
Here's another useful link: http://www.cocoadev.com/index.pl?NSZombieEnabled I find enabling 'zombies' to be an excellent way of detecting an 'over-released' object without getting horrible / delayed / cryptic crashes. I aways have them enabled during debugging. Just a note of caution though: nothing is ever freed with this option enabled (which, when you're only debugging, is not really important). And here is the 'tao of debugging' for OS X, which has a useful section on memory-related matters: http://developer.apple.com/mac/library/technotes/tn2004/tn2124.html Paul Sanders. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Why is [NSArray arrayWithObjects:] failing for me?
This has happened to me often. On Jan 4, 2010, at 8:24 AM, Dave Keck wrote: Does anyone else find XCode extremely buggy? I have to continually close and reopen my editing window because the code display gets trashed and appears to scramble my code. It doesn't really change the source code file; it just makes it look as if I've randomly gone through the file deleting stuff, and when I see that happen, I immediately save, close, and reopen the window, and everything is fine. This bug occurs for me fairly often - it usually happens when doing something using auto-completion. Luckily, as you said, it doesn't actually corrupt the file. :) ___ 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/intrntmn%40aol.com This email sent to intrn...@aol.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: NSDate without time portion
On Jan 4, 2010, at 02:26, Brian Bruinewoud wrote: What's the best way to get an NSDate object for 'today' such that the time is 00:00:00 (or any other constant). I not interested in the time, I only care about the year-month-day, but I do need the the hours-minutes-seconds to be the same on all dates so that I can compare the dates. Currently I do this: NSDateFormatter *dateFmter = [[NSDateFormatter alloc] init]; [dateFmter setTimeStyle:NSDateFormatterNoStyle]; [dateFmter setDateStyle:NSDateFormatterMediumStyle]; NSString dateText = [ dateFmter stringFromDate: self.now ]; // !! !! I need dateText anyway self.now = [ dateFmter dateFromString: dateText ]; // !! truncate time to 00:00:00 But this seems ugly, cumbersome and inefficient. The other option might be to use NSDate, NSCalendar and NSDateComponents, but that seems to be even more ugly and cumbersome and probably more inefficient. NSDate is *not* a good choice for these sorts of comparisons, because it's always a date and a time, and it's not as simple as it seems. Consider this (unlikely) example: Suppose you decided to force the time to 2:30 am instead of midnight. Probably doesn't behave as expected on days of daylight savings changeover (in places when it changes at 2 am), where they might be no 2:30 am, or two of them. Also, the difference between two dates standardized like that is not necessarily exactly one day, so computing elapsed days can be problematic too. If you only need to compare dates, you could certainly do it if you could standardize each NSDate to a unique time on that date, but choosing the time -- and standardizing to it -- is not easy unless you assume knowledge about how NSDate is implemented. The correct solution is NSDateComponents. It's slightly bulkier but correct. ___ 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: iPhone: load cell from XIB slows down tableview?
On Jan 4, 2010, at 12:03 AM, John Michael Zorko wrote:
I'm trying to determine why my tableviews scroll so jerkily on non-3GS
devices. The datasource only has perhaps 170 records, so I think it may have
something to do with how i'm instantiating the cells in
-tableView:cellForRowAtIndexPath. In other apps i've done, I create the view
for the cell programmatically, and alloc / init the cell if I can't dequeue
it. However, in this app, I have the cell's view loaded from a XIB. Is there
a better way of defining my cell's view with IB that still results in a
performant tableview?
- (UITableViewCell *)tableView:(UITableView *)tableViewIn
cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *cellID = @mycellID;
Have you verified that you've set the Identifier for the custom cell in the XIB
to match the above cellID? If they don't match, you'll end up loading the XIB
for every row in the table view. If things are set up properly, the XIB will
be loaded once for each visible row on the screen plus a few more depending on
how fast you scroll.
MyAppDelegate *appDelegate = (MyAppDelegate *)[[UIApplication
sharedApplication] delegate];
LogDailyCell *cell = (LogDailyCell *)[tableViewIn
dequeueReusableCellWithIdentifier:cellID];
if (nil == cell)
{
NSArray *nib = [[NSBundle mainBundle]
loadNibNamed:@LogDailyCell
owner:self options:nil];
for (id oneObject in nib)
{
if ([oneObject isKindOfClass:[LogDailyCell class]])
{
cell = (LogDailyCell *)oneObject;
break;
}
}
}
This is less of an issue, but iterating over the objects in the XIB can be
avoided by adding an outlet connected to the custom cell to your class that
owns the XIB. I've got a sample project that demonstrates this available at
http://majestysoftware.com/code/CustomCellFromNib.zip
The project was created pre-3.0, so you'll get a deprecation warning when
building. The basic concept is still valid in 3.x.
--
Tony Ingraldi
http://www.majestysoftware.com/
Old-fashioned values and high-tech
know-how___
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Re: NSTreeController/OutlineView w/CoreData Bindings multiple selection?
Rick Mann (rm...@latencyzero.com) on 2010-01-04 4:08 AM said: I have an NSTreeController and outline view displaying a hierarchy of Group objects. This works fine. The NSTreeController is bound to the managed object context, and uses a fetch predicate of parent == nil. It won't let me select more than one row. Is it simply not possible to do so? That should work. You sure you have the 'multiple selection' checkbox on? Sean ___ 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
Retain Count of NSConnection object
Hi and happy new year,
I have a server and a client app using NSConnection.
All seems to work fine. The client is doing something like
[(NSDistantObject *)aServer doThis] while the server object has a method
- (oneway void)doThis
{
NSLog(@do something);
}
After calling this method, the retain count I geton the client side
when I call [[aServer connectionForProxy] retainCount] has increased
by 3. Why I cannot understand at all. It doesn't do anything. Even if
I empty the entire method doThis it increases and makes my client run
out of memory eventually.
Is the server actually influencing the retainCount of its client's
connectionForProxy, or is the retainCount something that every party
has to look after on its own (which I thought would be the case)?
I can hardly expect for this to be a Cocoa-bug but imagine I am
misunderstanding something. Can anyone help and please tell me where I
am erring here?
Thanks a lot
Alex
smime.p7s
Description: S/MIME cryptographic signature
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Re: Retain Count of NSConnection object
On Mon, Jan 4, 2010 at 10:34 AM, Alexander Reichstadt l...@mac.com wrote: I can hardly expect for this to be a Cocoa-bug but imagine I am misunderstanding something. Can anyone help and please tell me where I am erring here? You're expecting -retainCount to return a useful number. It doesn't. Have a look at: http://developer.apple.com/Mac/library/documentation/Performance/Conceptual/ManagingMemory/Articles/FindingLeaks.html 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: iPhone: load cell from XIB slows down tableview?
Tony, Have you verified that you've set the Identifier for the custom cell in the XIB to match the above cellID? If they don't match, you'll end up loading the XIB for every row in the table view. If things are set up properly, the XIB will be loaded once for each visible row on the screen plus a few more depending on how fast you scroll. I fixed the issue last night, perhaps 20 minutes after I posted the question. Yes, it was exactly as you described -- I had the ID set incorrectly in the XIB. Many thanks! This is less of an issue, but iterating over the objects in the XIB can be avoided by adding an outlet connected to the custom cell to your class that owns the XIB. I've got a sample project that demonstrates this available at http://majestysoftware.com/code/CustomCellFromNib.zip The project was created pre-3.0, so you'll get a deprecation warning when building. The basic concept is still valid in 3.x. That is a good idea -- i'll try it :-) Regards, John Falling You - exploring the beauty of voice and sound http://www.fallingyou.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: Why is [NSArray arrayWithObjects:] failing for me?
I don’t seem to have any issues with XCode at all beyond not being able to hover-inspect some vars (I just use po on the output window instead). On Jan 4, 2010, at 5:58 AM, Charles Jenkins wrote: On 2010-01-03 00:08, Eric Smith wrote: Correct, do not release the array. If you don't create it with init, or retain it, then you should not release it. Eric, thank you for stating that rule. It should be easy enough to remember and help me avoid this problem in the future. In my defense, there seems to be a bug in the latest XCode, which make strings stored in NSArrays look like garbage when inspected during debugging. So the elements of pnl appeared to be trashed immediately upon creation. That's why I was looking for the bug in the wrong place. Does anyone else find XCode extremely buggy? I have to continually close and reopen my editing window because the code display gets trashed and appears to scramble my code. It doesn't really change the source code file; it just makes it look as if I've randomly gone through the file deleting stuff, and when I see that happen, I immediately save, close, and reopen the window, and everything is fine. Mac software is usually first class, stable, and beautiful. How do folks write such great software when they're stuck with such a sub-par IDE? :-) ___ 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/alex%40webis.net This email sent to a...@webis.net Alex Kac - President and Founder Web Information Solutions, Inc. I am not young enough to know everything. --Oscar Wilde ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Why is [NSArray arrayWithObjects:] failing for me?
Normally I’d agree, but people understand things in different ways. I found reading Aaron Hillegass book on Cocoa far more understandable than Apple’s docs. When I first started I used Apple’s docs as my reference and Aaron’s book as a way to understand it. Now I just use the Apple docs, but for beginners I strongly recommend that book. On Jan 4, 2010, at 6:11 AM, Roland King wrote: On 2010-01-03 00:08, Eric Smith wrote: Correct, do not release the array. If you don't create it with init, or retain it, then you should not release it. Eric, thank you for stating that rule. It should be easy enough to remember and help me avoid this problem in the future. With respect to Eric, that's part of the rule, the rules are in the memory management guide and it's better to read them in full from the apple documentation than paraphrase them. Alex Kac - President and Founder Web Information Solutions, Inc. The optimist proclaims that we live in the best of all possible worlds; and the pessimist fears this is true. -- James Clabell ___ 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: exposeBinding:
On 2010 Jan 03, at 14:56, Rick Mann wrote: Is -exposeBinding: only necessary when implementing an IB plug-in? Or is it required to make bind: work at all (on a custom object)? It is required to make bind: work at all (on a custom object). Put it in your +initialize method. ___ 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: NSBezierPath linewidth not correct
On 2 Jan 2010, at 23:42, Rob Keniger wrote: On 02/01/2010, at 8:58 PM, Gustavo Pizano wrote: No worries, I modify it and in fact it does work, but the background images will display a .5 gap between along the horizon between the images that conform the background, so I will put just a .5 to everywhere I need instead... It will probably be easier to create an NSAffineTransform and translate the whole context by 0.5px, so all drawing is offset without you needing to fiddle with individual values. While it sounds good superficially, that isn't such a great idea. The reason is that while stroking draws the stroke centred on the specified path, filling draws strictly inside. So e.g. NSRect myRect = NSMakeRect (10.0, 10.0, 100.0, 100.0); [[NSColor blueColor] set]; NSRectFill (myRect); will draw a sharp blue rectangle (by default), even though [[NSColor redColor] set]; [NSBezierPath strokeRect:myRect]; will (on current displays) add a fuzzy outline. Also, even if you adjust for the 0.5 pixel offset, you don't necessarily want to do so in both axes (depends what you're doing). It isn't necessarily 0.5 pixels either---you might be on a high DPI display, which is something Apple spent a lot of time talking about and has gone rather quiet about recently... Kind regards, Alastair. -- http://alastairs-place.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: Question about garbage collection
On Jan 4, 2010, at 5:31 AM, Quincey Morris wrote: On Jan 3, 2010, at 18:21, Ben Haller wrote: Bill, I for one would like to hear a bit more about this. What has changed in SL? Why would it ever be possible to outrun the collector? If the limit of memory is being reached, can't it always just do an immediate, synchronous collection before the call to +alloc returns? I'd love to have a better understanding of what's going on under the hood here... I think this: http://lists.apple.com/archives/Cocoa-dev/2009/Jun//msg01586.html is the thread where b.bum threw some light on that issue. (But I didn't reread the whole thing, so some of what I remember may be from a different thread.) Yes -- this message covers the high level issues related to doing an exhaustive blocking scan-and-collect when memory runs low or, more specifically, out. http://lists.apple.com/archives/Cocoa-dev/2009/Jun//msg01630.html b.bum ___ 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: NSTreeController/OutlineView w/CoreData Bindings multiple selection?
On Jan 4, 2010, at 06:21:47, Sean McBride wrote: Rick Mann (rm...@latencyzero.com) on 2010-01-04 4:08 AM said: I have an NSTreeController and outline view displaying a hierarchy of Group objects. This works fine. The NSTreeController is bound to the managed object context, and uses a fetch predicate of parent == nil. It won't let me select more than one row. Is it simply not possible to do so? That should work. You sure you have the 'multiple selection' checkbox on? Well, now, I'm an idiot. I couldn't fund such a checkbox last night. That was the *first* thing I looked for, and when I didn't find it, I decided there was something else. I probably just had the wrong thing selected in IB. And I looked for it more than once! Thank you! -- Rick ___ 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
Pasteboard file promises under 10.6
Does anybody know how to get file promises working with the new pasteboard API in Snow Leopard? When the dragging session in started, I put the following item onto the provided pasteboard: NSPasteboardItem* item = [[NSPasteboardItem alloc] init]; [item setDataProvider:self forTypes:[NSArray arrayWithObject:(NSString*)kPasteboardTypeFileURLPromise]]; [item setString:@net.mycompany.mydocument forType:kPasteboardTypeFilePromiseContent]; [pboard writeObjects:[NSArray arrayWithObject:item]]; But when I drag my objects, the delegate method pasteboard:item:provideDataForType: is never called. If I use public.data instead of my custom UTI, I get the following output in the console: Looked for HFSPromises on the pasteboard, but found none Sadly, the system documentation does not provide any more clues. Cheers Frank ___ 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: Custom NSFormatter classes
Hello again Patric and others.
I have another question related to the previous one.
I now have the following things:
* Foo model class
* FooFormatter class which converts Foo objects into string representations
* User interface with NSTableView which uses the FooFormatter in a text field
cell
What I would like to do next (yet not sure how to do it) is to have a context
menu attached to the table view with menu items calling actions on a Foo object
underneath the mouse cursor. Lets consider that the Foo class has something
like the following:
- (IBAction)setOneDot:(id)sender;
- (IBAction)setTwoDots:(id)sender;
- (IBAction)setThreeDots:(id)sender;
And the context menu would have items like One dot, Two dots and Three
dots which would call those actions.
The problem here is that target-action relationships can't be bound in the
Interface Builder, since target is not known until the user presses right mouse
on the table view. I am guessing that the best solution would be to subclass
NSCell or NSTextFieldCell and then override some method to handle the mouse
event?
Or maybe this could be done with some sort of Cocoa Bindings trickery to have
those menu items call directly on the setDots: method of the Foo class, without
having to implement a separate action for each setXXXDot(s) ? How about
displaying a checkmark on the menu item for the current state?
On Jan 3, 2010, at 1:58 PM, Patrick Mau wrote:
Hallo Henri
Your assumption about how formatters should work are correct. To provide a
useful answer
I have setup a mini project here, because I have stumbled over a detail I did
not now:
http://public.me.com/pmau
I took your approach and implemted a minimal datasource and a Foo object.
This is not a great example, but here's what II did not know:
When you wire up the formatter to the text field cell in IB,
setFormatter is called on the TextFieldCell, which in turn will
call your formatting code withe the cell's title:
run
[Switching to process 7123]
Running…
2010-01-03 12:39:47.790 Formatter[7123:a0f] NSCFString Cell Title
2010-01-03 12:39:47.810 Formatter[7123:a0f] Foo Foo: 0x1139291d0
2010-01-03 12:39:47.811 Formatter[7123:a0f] Foo Foo: 0x1151000a0
2010-01-03 12:39:47.811 Formatter[7123:a0f] Foo Foo: 0x1151000b0
Therefore you have too prepare to receive at least one object, which is not
Foo.
Interestingly, I could not find that little detail in the documentation.
If you want to return an instance Foo from your datasource, it is much more
convenient to write
your own NSCell subclass, because you can control editing and formatting much
easier.
You can even use an attached formatter that you setup in IB, passing it a
property of Foo.
All the best,
Patrick
On Jan 3, 2010, at 1:47 , Henri Häkkinen wrote:
Hello.
I have an array of custom Foo objects which I would need to display in an
NSTableView object. I implement the data source delegate like this:
- (NSInteger)numberOfRowsInTableView:(NSTableView *)tableView {
return [arrayOfFoos count];
}
- (id)tableView:(NSTableView *)tableView
objectValueForTableColumn:(NSTableColumn *)tableColumn row:(NSInteger) row {
return [arrayOfFoos objectAtIndex:row];
}
Then I have NSFormatter subclass FooFormatter which takes in a Foo object
and converts it to a string. This formatter object is attached to the
formatter property of the TextFieldCell class in the NSTableView's table
column. The FooFormatter is like this:
@implementation FooFormatter
- (NSString *)stringForObjectValue:(id)anObject {
if ([anObject isKindOfClass:[Foo class]] == NO) {
[NSException raise:NSInvalidArgumentException format:@Wrong
object];
}
Foo *foo = (Foo *)anObject;
NSString *string;
// ... convert foo into string ...
return string;
}
@end
I am assuming here that the object returned by the data source
objectValueForTableColumn: is passed to the formatter's
stringForObjectValue: before it is displayed in the text field cell -- this
seems not to be the case. I would like to keep formatting of Foo objects
separate from the data source (if possible) since I intend to implement
multiple different FooFormatter derived classes suited for different
situations.
The Cocoa docs seem to be a little low on details on how these NSFormatter
objects are supposed to work. Can anybody give me any insight? Would be
appreciated. Thanks.
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Please do not
Re: Pasteboard file promises under 10.6
On Jan 4, 2010, at 11:06 AM, Frank Illenberger wrote: Does anybody know how to get file promises working with the new pasteboard API in Snow Leopard? You can't. Every version of Mac OS X to date treats file promise pasteboards as being different from all other kinds of pasteboards, and the only supported way of starting a file promise drag operation is by using the -dragPromisedFilesOfTypes:... method of NSView. Also, some built-in views support file promise dragging through their delegate or data source methods, which ultimately use -dragPromisedFilesOfTypes:... to do the drag. Nick Zitzmann http://www.chronosnet.com/ ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
iPhone Creating a months view
I am creating an iPhone view that has 12 months of views in it starting with January. For each subview (month) I need to get the 1st day of the month (which calendar day it falls on as an int). For instance Jan 2010 begins on a Friday (int of 5 I assume). This way I can properly populate the UILabels I am positioning in each subview. I saw this: http://theocacao.com/document.page/389 but I can't get it to work for the iPhone. I am going through docs and google at the moment. Any help appreciated. Eric ___ 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: iPhone Creating a months view
On Jan 4, 2010, at 10:35 AM, Eric E. Dolecki wrote: I am creating an iPhone view that has 12 months of views in it starting with January. For each subview (month) I need to get the 1st day of the month (which calendar day it falls on as an int). For instance Jan 2010 begins on a Friday (int of 5 I assume). This way I can properly populate the UILabels I am positioning in each subview. I saw this: http://theocacao.com/document.page/389 but I can't get it to work for the iPhone. I am going through docs and google at the moment. Any help appreciated. Eric I think the best approach would be a combination of NSDate, NSCalendar, and NSDateComponents. You could create an NSDate for the first of each month (1/1, 2/1, 3/1, etc.) and then use the components:fromDate: method on NSCalendar with the NSWeekdayCalendarUnit constant to get the day of the week for the first of the month. That comes out as an int from 1 to 7 (1 is Sunday, 7 is Saturday, so Friday would be 6). Wyatt___ 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: iPhone Creating a months view
One caution about using NSDateComponents, NSCalendar, etc… is that they are considerably slower than the CF date code. We took code written using the NS versions and rewrote them as CF version and the performance was easily 10x. Of course it was mostly noticeable only in loops where we were doing lots of iterations, but on the iPhone it was noticeable to the user even in short loops of 10 items or so. On Jan 4, 2010, at 11:59 AM, Wyatt Webb wrote: On Jan 4, 2010, at 10:35 AM, Eric E. Dolecki wrote: I am creating an iPhone view that has 12 months of views in it starting with January. For each subview (month) I need to get the 1st day of the month (which calendar day it falls on as an int). For instance Jan 2010 begins on a Friday (int of 5 I assume). This way I can properly populate the UILabels I am positioning in each subview. I saw this: http://theocacao.com/document.page/389 but I can't get it to work for the iPhone. I am going through docs and google at the moment. Any help appreciated. Eric I think the best approach would be a combination of NSDate, NSCalendar, and NSDateComponents. You could create an NSDate for the first of each month (1/1, 2/1, 3/1, etc.) and then use the components:fromDate: method on NSCalendar with the NSWeekdayCalendarUnit constant to get the day of the week for the first of the month. That comes out as an int from 1 to 7 (1 is Sunday, 7 is Saturday, so Friday would be 6). Wyatt___ 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/alex%40webis.net This email sent to a...@webis.net Alex Kac - President and Founder Web Information Solutions, Inc. The optimist proclaims that we live in the best of all possible worlds; and the pessimist fears this is true. -- James Clabell ___ 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: iPhone Creating a months view
On Jan 4, 2010, at 11:35 AM, Eric E. Dolecki wrote: I am creating an iPhone view that has 12 months of views in it starting with January. Don't make assumptions about calendars unless you are absolutely sure you can get away with them, e.g. every calendar currently in use in the world uses seven day weeks. In this case, you shouldn't, because, for example, while it's true that most calendar types have exactly 12 months in a year, the Hebrew calendar has 12 months in a regular year and 13 months in a leap year. You can use NSCalendar to figure out how many months there are in a given year. For each subview (month) I need to get the 1st day of the month (which calendar day it falls on as an int). For instance Jan 2010 begins on a Friday (int of 5 I assume). Again, use NSCalendar and NSDateComponents. They are available on the iPhone OS; the older NSCalendarDate class is not available on the iPhone OS. Nick Zitzmann http://www.chronosnet.com/ ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Getting children of all subnodes of a selected node in NSTreeController?
I now have a working Group selection UI, where you can choose one or more groups and see the list of items belonging to those groups in another pane. Now, I'd like to extend things a bit so that if a group with subgroups is selected, all of the items belonging to that group, and to all of its subgroups, is shown in the list. I didn't see any KVO operator that would do that, so I think what I need to do is subclass NSTreeController and add a property which is either all of the selected groups and their subgroups, or nodes. OTOH, I think that would be hard to do correctly, because of the way the controllers return proxies. Maybe a better thing to do would be to add a property to my Group entity which is all of the it child items (which I have now), plus all of the subgroups' child items. Any advice would be much appreciated. Thanks! -- Rick ___ 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: iPhone Creating a months view
Thanks for the insights. Currently I have a chunk of code in a loop that looks like this: *//'pointer' increments in a loop - so create a date for each month of the year, c defined outside the loop* int currentYear = [comp year]; NSDateComponents *components = [[[NSDateComponents alloc]init] autorelease]; [components setMonth:pointer+1]; [components setDay:1]; [components setYear:currentYear]; NSCalendar *gregorian = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar]; NSDate *myDate = [gregorian dateFromComponents:components]; NSRange range = [c rangeOfUnit:NSDayCalendarUnit inUnit:NSMonthCalendarUnit forDate:[c dateFromComponents:components]]; *//Now get the day of the week the 1st day of this month falls on (ie. 6 = Friday)* unsigned uFlags = NSWeekdayCalendarUnit; NSDateComponents *comp2 = [gregorian components:uFlags fromDate:myDate]; NSLog(@Date: %@, days in this month: %d, starts on weekday:%i, myDate, range.length, [comp2 weekday] ); And the output looks like this: *Date: 2010-01-01 00:00:00 -0500, days in this month: 31, starts on weekday:6* *Date: 2010-02-01 00:00:00 -0500, days in this month: 28, starts on weekday:2* *Date: 2010-03-01 00:00:00 -0500, days in this month: 31, starts on weekday:2* *Date: 2010-04-01 00:00:00 -0400, days in this month: 30, starts on weekday:5* *Date: 2010-05-01 00:00:00 -0400, days in this month: 31, starts on weekday:7* *Date: 2010-06-01 00:00:00 -0400, days in this month: 30, starts on weekday:3* *Date: 2010-07-01 00:00:00 -0400, days in this month: 31, starts on weekday:5* *Date: 2010-08-01 00:00:00 -0400, days in this month: 31, starts on weekday:1* *Date: 2010-09-01 00:00:00 -0400, days in this month: 30, starts on weekday:4* *Date: 2010-10-01 00:00:00 -0400, days in this month: 31, starts on weekday:6* *Date: 2010-11-01 00:00:00 -0400, days in this month: 30, starts on weekday:2* *Date: 2010-12-01 00:00:00 -0500, days in this month: 31, starts on weekday:4* I'll rename some of the stuff check into that number of months in a year thing. Thanks again. On Mon, Jan 4, 2010 at 2:17 PM, Nick Zitzmann n...@chronosnet.com wrote: On Jan 4, 2010, at 11:35 AM, Eric E. Dolecki wrote: I am creating an iPhone view that has 12 months of views in it starting with January. Don't make assumptions about calendars unless you are absolutely sure you can get away with them, e.g. every calendar currently in use in the world uses seven day weeks. In this case, you shouldn't, because, for example, while it's true that most calendar types have exactly 12 months in a year, the Hebrew calendar has 12 months in a regular year and 13 months in a leap year. You can use NSCalendar to figure out how many months there are in a given year. For each subview (month) I need to get the 1st day of the month (which calendar day it falls on as an int). For instance Jan 2010 begins on a Friday (int of 5 I assume). Again, use NSCalendar and NSDateComponents. They are available on the iPhone OS; the older NSCalendarDate class is not available on the iPhone OS. Nick Zitzmann http://www.chronosnet.com/ -- http://ericd.net Interactive design and development ___ 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
GC memory leak - what is it?
A recent post mentioned the concept of GC memory leakage. How is is this defined? Is it merely a failure to nil out a rooted reference? man heap(1) makes reference to over-rooted objects. Are these merely objects with more than one root reference or is something else afoot? Regards Jonathan Mitchell Developer http://www.mugginsoft.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: exposeBinding:
On Mon, Jan 4, 2010 at 8:30 AM, Jerry Krinock je...@ieee.org wrote: It is required to make bind: work at all (on a custom object). Put it in your +initialize method. Eh? It is not required at 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: GC memory leak - what is it?
On Jan 4, 2010, at 11:50 AM, jonat...@mugginsoft.com wrote: A recent post mentioned the concept of GC memory leakage. How is is this defined? Is it merely a failure to nil out a rooted reference? man heap(1) makes reference to over-rooted objects. Are these merely objects with more than one root reference or is something else afoot? Under GC, a memory leak will fall into one of two categories: (1) An object was CFRetain'd, but never CFRelease'd. This is exactly like over-retaining an object in non-GC . Note that, in general, if you are using CFRetain under GC, it is only to work around a limitation somewhere or because of a design flaw. If you need to use CFRetain to work around something, please file a bug! (2) A hard reference to an object that isn't cleaned up. For example, many applications have a cache somewhere, typically key/value pairs. I have seen a number of these where, under non-GC, the cache never retained the values and was never pruned. Because the values were never retained, the values in the cache were released and deallocated, leaving behind a dangling value with a key that would no longer ever be accessed. In the move to GC, this created a leak in that the cache would often default to a strong reference. Lesson; prune your caches! It isn't so much thinking of it as a reference that needs to be nil'd out as much as it is a need to properly disconnect a subgraph of objects from the live object graph in an application such that the subgraph is collected. That is, nil'ing out references is a fix for a symptom where the overarching problem is one of properly managing the connectivity of the object graph within the application. b.bum ___ 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: GC memory leak - what is it?
jonat...@mugginsoft.com wrote: A recent post mentioned the concept of GC memory leakage. How is is this defined? Is it merely a failure to nil out a rooted reference? Yes. If you hold a reference to memory you don't need anymore, you have a leak. I've gotten into huge flamewars over this, but I'm convinced of its truth. Consider a Java Document Object Model tree. Every node holds a reference to its parent and all of its children. If you hold a reference to any node in the tree, you prevent the entire tree from being collected. If you can't be sure that some other code will nil out your references, then nil them out yourself. Rippit the Ogg Frog rip...@oggfrog.com http://www.oggfrog.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: Custom NSFormatter classes
Hallo Henri
I have updated the Formatter to include a context menu
for the TableView.
http://public.me.com/pmau
Since you don't know the target, you could wire them up to the FirstResponder
object in IB.
Look at the inspector panel for FirstResponder, you can add actions there.
Since the TableView is not subclassed, the first responder in this case is
the Application Delegate. This is where I implemented the actions.
This is not how I would recommend implementing, but it should give you an idea.
Please read
http://developer.apple.com/Mac/library/documentation/Cocoa/Conceptual/MenuList/Articles/EnablingMenuItems.html
It explains how the responder chain is searched and how enabling items works.
In my example:
* NSTableView does not implent it,
* The NSWinow does not implement it
* The widow delegate does not
* The Application delegate does (Bingo!)
You could look at the [window firstResponder] in the action method,
this would yield the TableView.
You could then mis-use the Datasource and forward the action there.
(You can get the selected rows there, too.)
You could subclass the NSTableView, implementing your actions there.
You could embed the TableView in a custom view subclass to handle actions and
so on.
You could use a custom Controller as your FilesOwner and bind actions there in
IB.
I hope you get the idea.
Patrick
PS: I don't mind answering, but my quick hacks will not necessarily improve
your coding ;)
Please read a lot of documents about FirstResponder, FilesOwner and see what
fits your needs.
On Jan 4, 2010, at 19:14 , Henri Häkkinen wrote:
Hello again Patric and others.
I have another question related to the previous one.
I now have the following things:
* Foo model class
* FooFormatter class which converts Foo objects into string representations
* User interface with NSTableView which uses the FooFormatter in a text field
cell
What I would like to do next (yet not sure how to do it) is to have a context
menu attached to the table view with menu items calling actions on a Foo
object underneath the mouse cursor. Lets consider that the Foo class has
something like the following:
- (IBAction)setOneDot:(id)sender;
- (IBAction)setTwoDots:(id)sender;
- (IBAction)setThreeDots:(id)sender;
And the context menu would have items like One dot, Two dots and Three
dots which would call those actions.
The problem here is that target-action relationships can't be bound in the
Interface Builder, since target is not known until the user presses right
mouse on the table view. I am guessing that the best solution would be to
subclass NSCell or NSTextFieldCell and then override some method to handle
the mouse event?
Or maybe this could be done with some sort of Cocoa Bindings trickery to have
those menu items call directly on the setDots: method of the Foo class,
without having to implement a separate action for each setXXXDot(s) ? How
about displaying a checkmark on the menu item for the current state?
On Jan 3, 2010, at 1:58 PM, Patrick Mau wrote:
Hallo Henri
Your assumption about how formatters should work are correct. To provide a
useful answer
I have setup a mini project here, because I have stumbled over a detail I
did not now:
http://public.me.com/pmau
I took your approach and implemted a minimal datasource and a Foo object.
This is not a great example, but here's what II did not know:
When you wire up the formatter to the text field cell in IB,
setFormatter is called on the TextFieldCell, which in turn will
call your formatting code withe the cell's title:
run
[Switching to process 7123]
Running…
2010-01-03 12:39:47.790 Formatter[7123:a0f] NSCFString Cell Title
2010-01-03 12:39:47.810 Formatter[7123:a0f] Foo Foo: 0x1139291d0
2010-01-03 12:39:47.811 Formatter[7123:a0f] Foo Foo: 0x1151000a0
2010-01-03 12:39:47.811 Formatter[7123:a0f] Foo Foo: 0x1151000b0
Therefore you have too prepare to receive at least one object, which is not
Foo.
Interestingly, I could not find that little detail in the documentation.
If you want to return an instance Foo from your datasource, it is much more
convenient to write
your own NSCell subclass, because you can control editing and formatting
much easier.
You can even use an attached formatter that you setup in IB, passing it a
property of Foo.
All the best,
Patrick
On Jan 3, 2010, at 1:47 , Henri Häkkinen wrote:
Hello.
I have an array of custom Foo objects which I would need to display in an
NSTableView object. I implement the data source delegate like this:
- (NSInteger)numberOfRowsInTableView:(NSTableView *)tableView {
return [arrayOfFoos count];
}
- (id)tableView:(NSTableView *)tableView
objectValueForTableColumn:(NSTableColumn *)tableColumn row:(NSInteger) row {
return [arrayOfFoos objectAtIndex:row];
}
Then I have NSFormatter subclass FooFormatter which takes in a Foo object
and converts it to a string.
Re: Custom NSFormatter classes
Thanks for your answer again, Patrick. By the way, what is the general opinion about the Cocoa Bindings technology among Mac developers? I have been looking into it lately and while it looks very neat I have found it troublesome to actually put it into practical use. I am contemplating whether or not to adopt it into my projects, or to just use target-action mechanism which seems to be easier to use even though it requires a bit more glue coding. ___ 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: iPhone Creating a months view
On Jan 4, 2010, at 11:17 AM, Nick Zitzmann wrote: On Jan 4, 2010, at 11:35 AM, Eric E. Dolecki wrote: I am creating an iPhone view that has 12 months of views in it starting with January. Don't make assumptions about calendars unless you are absolutely sure you can get away with them, e.g. every calendar currently in use in the world uses seven day weeks. In this case, you shouldn't, because, for example, while it's true that most calendar types have exactly 12 months in a year, the Hebrew calendar has 12 months in a regular year and 13 months in a leap year. You can use NSCalendar to figure out how many months there are in a given year. For each subview (month) I need to get the 1st day of the month (which calendar day it falls on as an int). For instance Jan 2010 begins on a Friday (int of 5 I assume). Again, use NSCalendar and NSDateComponents. They are available on the iPhone OS; the older NSCalendarDate class is not available on the iPhone OS. As a follow-on to Nick's caveats above, check out NSLocale Calendar Keys in the NSLocale Class Reference for a list of calendars supported on the phone. Note that the phone-supported calendars are a subset of those supported on Mac OS X. And NSCalendarDate appears to have vanished from Mac OS X Foundation as well . . . Amateur and Professional calendar scholars alike can visit this web site for everything you never wanted to know about calendar lore: http://emr.cs.iit.edu/home/reingold/calendar-book/index.shtml Cheers, . . . . . . . .Henry = iPhone App Development and Developer Education . . . Visit www.nonatomic-retain.com Mac OSX Application Development, Plus a Great Deal More . . . Visit www.trilithon.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: iPhone Creating a months view
On Jan 4, 2010, at 2:17 PM, Henry McGilton (Boulevardier) wrote: And NSCalendarDate appears to have vanished from Mac OS X Foundation as well . . . It's still there; it's just been deprecated because Apple wants to push the NSCalendar and NSDateComponents classes due to their superior localization capabilities. Not everybody in the world uses the Gregorian calendar, after all. But it's currently still useful for one reason - it's the only built-in way to include a time zone as part of a date. Nick Zitzmann http://www.chronosnet.com/ ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Custom NSFormatter classes
On Tuesday, January 5, 2010, Henri Häkkinen wrote: Thanks for your answer again, Patrick. By the way, what is the general opinion about the Cocoa Bindings technology among Mac developers? Don't confuse my uninformed opinion with the general opinion but it appears to be an 80% technology... 80% of the time (particularly for simple cases) it works well saves a bit of effort. For the remaining 20% it varies significantly; sometimes you can bend it, prod it and squish it to mostly fit... Sometimes you waste several hours bending, prodding squishing only to realise those several hours of effort (assuming you were successful) saved you five or ten minutes of glue coding. My difficulty is knowing which situation is which. Plus often you will get both situations in the one project... Regards, Matt ___ 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: GC memory leak - what is it?
On 4 Jan 2010, at 20:39, Bill Bumgarner wrote: It isn't so much thinking of it as a reference that needs to be nil'd out as much as it is a need to properly disconnect a subgraph of objects from the live object graph in an application such that the subgraph is collected. That is, nil'ing out references is a fix for a symptom where the overarching problem is one of properly managing the connectivity of the object graph within the application. b.bum Thanks for the clarification. I am using the ObjectGraph tool in Instruments. The table view for this tool has a Root column. Presumably a item marked as Root is one of : global variables, stack variables, and objects with external references Browsing through User-defined Root objects I can see in the Extended Detail view that some of my objects have multiple stack roots. How can a multiple stack root occur? Is this just saying that the same object is referenced by multiple stack allocated pointers at the time that the sample was taken? Presumably a stack root cannot be the source of any persistent leak as once the frame is gone so is the root. Sorry if this is dumb question. I am struggling to comprehend just what the ObjectGraph tool is telling me. Docs seem MIA for this tool (or maybe it's me that's MIA). Most of my rooted objects are statically allocated singletons. ObjectGraph correctly identifies them as single roots. Thanks again Jonathan Mitchell Developer mugginsoft.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
Turn off font hinting?
Hello all, I wrote some code to draw an NSString rotated by an arbitrary angle, which can be manipulated interactively. The results are surprisingly bad (compared to how good font rendering is in general on the Mac). Most notably, the character positions jump around in whole pixel increments while I'm rotating the text. Usually, this is caused by hinting which tries to place vertical and horizontal lines at integer pixels. Does anyone know of a way to switch this off (temporarily) for a given context? Thanks in advance, 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
Looking up a NSString constant at runtime
Is there a way to lookup what and NString constant is at runtime? I want to know what the string is for a given constant. For example I would like to pass in the constant name ( i.e. NSDeviceResolution) and get back the NSString that constant represents. I know in this case that the Constant name and the string are the same but I suspect that is not always true. Any ideas? thanks -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: Looking up a NSString constant at runtime
On Mon, Jan 4, 2010 at 4:56 PM, David Alter alterconsult...@gmail.com wrote: Is there a way to lookup what and NString constant is at runtime? Have you tried [NSDeviceResolution description] or [NSString stringWithString:NSDeviceResolution] ? Soong ___ 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
Do I need to download both XCode for both Mac iPhone
Newbie Q: I've been playing with the XCode env for iPhone for a few weeks and was thinking about doing some OS X dev but do I need to download the whole OS X version of XCode or is there some smaller download? - jem -- Jan Erik Moström http://mostrom.eu ___ 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: Revolving scoreboard
Take a look at the first post in the following link: http://www.cocoadev.com/index.pl?CoreAnimation Basically, you just have the view's animator as a receiver rather than the view itself. This will automatically do the default animations for you. --Nick Paulson On Jan 4, 2010, at 1:55 AM, gumbo...@mac.com wrote: Thanks Guys, that will work really well and its a nice neat solution. Can you elaborate on the animation proxy a little bit or rather point me in the right direction. Cheers Rob On 4/01/2010, at 2:29 PM, PCWiz wrote: Good point, the view subclass would be easy and clean. Independent Cocoa Developer, Macatomy Software http://macatomy.com On 2010-01-03, at 6:10 PM, Scott Anguish wrote: I don’t think using NSScrollView is at all necessary in this case. That’s much more of a situation for user interaction. This sounds more like the case for creating a view subclass that contains a view that displays the current score. When the score increases, insert another view visually above the other ( so it’d be like Main View New View then using an animation proxy to move the main view up and the new view up as well. On Jan 3, 2010, at 6:27 PM, PCWiz wrote: This isn't something thats extremely difficult to do. You will need to create NSView subclasses for the scores at the top. You can use NSAttributedString/NSMutableAttributedString to create styled text, and use their drawInRect method to draw the text into the view. It would be a good idea to read this: https://developer.apple.com/mac/library/documentation/Cocoa/Conceptual/CocoaDrawingGuide/Introduction/Introduction.html And more specifically, this: https://developer.apple.com/mac/library/documentation/Cocoa/Conceptual/CocoaDrawingGuide/Text/Text.html#//apple_ref/doc/uid/TP40003290-CH209-BCIEEIGC For the scrolling scores below, you will have to put the scores into an NSTableView, or an NSCollectionView (the latter is better if you want to customize the display) inside an NSScrollView. As for the automatic scrolling, NSScrollView has nothing built in to facilitate this. Most likely you are going to have to use an NSTimer that fires every few milliseconds, and uses NSScrollView's scrollToPoint: method to scroll gradually until you hit the bottom. Independent Cocoa Developer, Macatomy Software http://macatomy.com On 2010-01-03, at 4:07 PM, gumbo...@mac.com wrote: I have been asked to design a revolving scoreboard for a large Sporting Clays event. The plan is to have a MacBook connected to a large flat screen TV in the main tent. I will pull the scores from a CSV file (which is updated regularly) and sort them into arrays for display. Creating the on screen graphics is something I have not done much of with Cocoa. The organizers have asked for a full screen display and would like have the top 5 scores at the top of the screen and then scroll the rest of the field below these scores. I could punch this out with HTML and a bit of Javascript, but I thought it might be good to do have a play with Quartz. Can you please tell me how you good people might approach this? ___ 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/pcwiz.support%40gmail.com This email sent to pcwiz.supp...@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/scott%40cocoadoc.com This email sent to sc...@cocoadoc.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/gumboots%40mac.com This email sent to gumbo...@mac.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/cocoa%40nickpaulson.com This email sent to co...@nickpaulson.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
Need help regarding sleep notification
Hi, I am listening to the notifications NSWorkspaceWillSleepNotification and NSWorkspaceDidWakeNotification in my code. I am getting these notifications, when user selects sleep from system menu. But when system goes to sleep, after being idle for some duration, I am not getting these notifications. I have faced the same problem on both leopard and snow leopard. 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: Do I need to download both XCode for both Mac iPhone
Newbie Q: I've been playing with the XCode env for iPhone for a few weeks and was thinking about doing some OS X dev but do I need to download the whole OS X version of XCode or is there some smaller download? You need xcode + iphone-sdk, so yes, you need both. :) -- regards Claus When lenity and cruelty play for a kingdom, the gentler gamester is the soonest winner. Shakespeare twitter.com/kometen ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Why is [NSArray arrayWithObjects:] failing for me?
that’s fine, Aaron’s book is an excellent source. The issue is more that the memory management rules shouldn’t be paraphrased here. Too easy for people to make errors and confuse users. On Jan 4, 2010, at 11:24 AM, Alex Kac wrote: Normally I’d agree, but people understand things in different ways. I found reading Aaron Hillegass book on Cocoa far more understandable than Apple’s docs. When I first started I used Apple’s docs as my reference and Aaron’s book as a way to understand it. Now I just use the Apple docs, but for beginners I strongly recommend that book. On Jan 4, 2010, at 6:11 AM, Roland King wrote: On 2010-01-03 00:08, Eric Smith wrote: Correct, do not release the array. If you don't create it with init, or retain it, then you should not release it. Eric, thank you for stating that rule. It should be easy enough to remember and help me avoid this problem in the future. With respect to Eric, that's part of the rule, the rules are in the memory management guide and it's better to read them in full from the apple documentation than paraphrase them. Alex Kac - President and Founder Web Information Solutions, Inc. The optimist proclaims that we live in the best of all possible worlds; and the pessimist fears this is true. -- James Clabell ___ 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/scott%40cocoadoc.com This email sent to sc...@cocoadoc.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: GC memory leak - what is it?
On Mon, January 4, 2010 12:39:22 PM Bill Bumgarner b...@mac.com wrote: It isn't so much thinking of it as a reference that needs to be nil'd out as much as it is a need to properly disconnect a subgraph of objects from the live object graph in an application such that the subgraph is collected. That is, nil'ing out references is a fix for a symptom where the overarching problem is one of properly managing the connectivity of the object graph within the application. Does anybody know how the collector actually works? I've read the docs a dozen times but something about the description makes me think it doesn't exactly happen the way it's described. According to the docs, the collector scans all of your objects to determine what needs to be deallocated. But in performing this scan, how does it know which bits in your object are pointers to other objects and which bits are just data? I think that an understanding of what actually happens behind the scenes would clear up a LOT of the common questions we see here about GC. Soong ___ 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: Do I need to download both XCode for both Mac iPhone
Le 4 janv. 2010 à 23:23, Rick Mann a écrit : On Jan 4, 2010, at 01:41:56, Jan Erik Moström wrote: Newbie Q: I've been playing with the XCode env for iPhone for a few weeks and was thinking about doing some OS X dev but do I need to download the whole OS X version of XCode or is there some smaller download? No. The iPhone SDK version of Xcode includes everything you need for desktop development as well. Ditto. So there is two 'no' and one 'yes' answers to your question. 'no' answer win ;-) -- 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: Looking up a NSString constant at runtime
I think you're confused: the constant *is* the string; there is no lookup to perform. You can do anything with it that you would do with any other non-mutable string: log it, setStringValue on a text field in the user interface, setMessageText in an alert, and so on. -- Scott Ribe scott_r...@killerbytes.com http://www.killerbytes.com/ (303) 722-0567 voice ___ 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: Do I need to download both XCode for both Mac iPhone
On Mon, Jan 4, 2010 at 1:41 AM, Jan Erik Moström li...@mostrom.pp.se wrote: Newbie Q: I've been playing with the XCode env for iPhone for a few weeks and was thinking about doing some OS X dev but do I need to download the whole OS X version of XCode or is there some smaller download? The current iPhone SDK downloads are proper supersets of the corresponding Xcode downloads. That is, everything contained in the Mac-only downloads is also included in the iPhone SDK downloads. -- Clark S. Cox III clarkc...@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: Need font anti aliasing techniques
On Jan 3, 2010, at 8:33 PM, padmakumar wrote: What are all the ways we can programmatically make anti aliasing techniques for texts displayed in NSTextField. What kind of results are you trying to achieve? Mac OS X has a standard antialiasing mechanism in its font rendering; normally, just using NSTextField should achieve appropriate antialiasing. — Chris ___ 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: Looking up a NSString constant at runtime
This would work for finding out what the name is as well as logging it. What if I'm getting a string passed in that is the name of the constant and I want to return the constants string value. Is there a way to do that? something like... NSString * constValue = [SomeToolToLookupConstants constant:@ NSDeviceResolution']; any idea? -dave On Mon, Jan 4, 2010 at 2:19 PM, Oftenwrong Soong oftenwrongso...@yahoo.comwrote: On Mon, Jan 4, 2010 at 4:56 PM, David Alter alterconsult...@gmail.com wrote: Is there a way to lookup what and NString constant is at runtime? Have you tried [NSDeviceResolution description] or [NSString stringWithString:NSDeviceResolution] ? Soong ___ 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/alterconsulting%40gmail.com This email sent to alterconsult...@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: Looking up a NSString constant at runtime
The constant *is* an NSString; essentially you could do: NSString *constValue = NSDeviceResolution; Though, that may be a little redundant. --Nick Paulson On Jan 4, 2010, at 6:09 PM, David Alter wrote: This would work for finding out what the name is as well as logging it. What if I'm getting a string passed in that is the name of the constant and I want to return the constants string value. Is there a way to do that? something like... NSString * constValue = [SomeToolToLookupConstants constant:@ NSDeviceResolution']; any idea? -dave On Mon, Jan 4, 2010 at 2:19 PM, Oftenwrong Soong oftenwrongso...@yahoo.comwrote: On Mon, Jan 4, 2010 at 4:56 PM, David Alter alterconsult...@gmail.com wrote: Is there a way to lookup what and NString constant is at runtime? Have you tried [NSDeviceResolution description] or [NSString stringWithString:NSDeviceResolution] ? Soong ___ 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/alterconsulting%40gmail.com This email sent to alterconsult...@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/cocoa%40nickpaulson.com This email sent to co...@nickpaulson.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: help a brother out?
Hi Ryan, Long time no talk, but distros aren't a good way to go with Snow Leopard. Retail install is easier and better. Independent Cocoa Developer, Macatomy Software http://macatomy.com On 2010-01-04, at 12:31 PM, Ryan R. Moos wrote: any chance you might know a rapidshare link for OS X 10.6 Snow Leopard Universal v3.6? Long ago you pointed me in the right direction for Kalyway Ryan Ryan R. Moos User 2 Productions Assistant VFX Editor cl 310-383-2663 http://www.linkedin.com/in/ryanrmoos END OF LINE ___ 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: Turn off font hinting?
One idea would be to draw the text into the view at the normal angle, then convert the contents of the view into an NSImage, put that into an NSImageView and rotate that instead. I'm not sure how good of a solution this is, or if there is a better solution, but I've found that manipulating images of elements rather than the elements directly is smoother. Independent Cocoa Developer, Macatomy Software http://macatomy.com On 2010-01-04, at 2:47 PM, Sander Stoks wrote: Hello all, I wrote some code to draw an NSString rotated by an arbitrary angle, which can be manipulated interactively. The results are surprisingly bad (compared to how good font rendering is in general on the Mac). Most notably, the character positions jump around in whole pixel increments while I'm rotating the text. Usually, this is caused by hinting which tries to place vertical and horizontal lines at integer pixels. Does anyone know of a way to switch this off (temporarily) for a given context? Thanks in advance, 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/pcwiz.support%40gmail.com This email sent to pcwiz.supp...@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: GC memory leak - what is it?
On Jan 4, 2010, at 2:27 PM, Oftenwrong Soong wrote: According to the docs, the collector scans all of your objects to determine what needs to be deallocated. But in performing this scan, how does it know which bits in your object are pointers to other objects and which bits are just data? The Objective-C compiler has always generated extended type information for classes, so you can not only tell what the offset of an instance variable is at runtime, but also what its type is. When building GC-supported or GC-required, the compiler additionally provides a layout bitmap that gives the collector a faster way to know what offsets should be considered to hold strong and weak references. See class_setIvarLayout and class_setWeakIvarLayout in the Objective-C Runtime Reference; anyone constructing classes “by hand” (e.g. using objc_allocateClassPair) needs to use these if they want their classes to work under GC. — Chris ___ 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: Turn off font hinting?
On Jan 4, 2010, at 1:47 PM, Sander Stoks wrote: I wrote some code to draw an NSString rotated by an arbitrary angle, which can be manipulated interactively. The results are surprisingly bad (compared to how good font rendering is in general on the Mac). Most notably, the character positions jump around in whole pixel increments while I'm rotating the text. Usually, this is caused by hinting which tries to place vertical and horizontal lines at integer pixels. Does anyone know of a way to switch this off (temporarily) for a given context? I don't think Quartz's text renderer uses hinting in the normal sense; this is part of why text looks different on Mac than on Windows. (Subpixel anti-aliasing largely removes the need for hinting, and makes the hints actually mess up the shape of the glyphs.) I'm not sure why you're getting this result. Are you just applying a rotation transform to the NSGraphicsContext and then drawing the NSString? Have you tried using the lower-level CG APIs instead (it shouldn't make a difference, but you never know.) —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
Re: Looking up a NSString constant at runtime
What if I'm getting a string passed in that is the name of the constant and I want to return the constants string value. Is there a way to do that? This is C, and just as with variables, the names are not there at runtime. If you really need to do this, you'll have to build your own lookup table, possibly using some macro magic to avoid having to type the name twice for each entry. -- Scott Ribe scott_r...@killerbytes.com http://www.killerbytes.com/ (303) 722-0567 voice ___ 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: GC memory leak - what is it?
On Jan 4, 2010, at 1:39 PM, jonat...@mugginsoft.com wrote: How can a multiple stack root occur? Is this just saying that the same object is referenced by multiple stack allocated pointers at the time that the sample was taken? That is correct; the object may be referenced by multiple local variables [on the stack]. Note that since the stack is scanned conservatively, you may be seeing stale references -- references that have gone out of scope. Presumably a stack root cannot be the source of any persistent leak as once the frame is gone so is the root. One would like to believe that, but it isn't always the case. On AMD64, the ABI specifies that there is a red zone of 128 bytes allocated just below the current stack pointer that can be used as scratch space. Thus, the collector has to also scan the red zone conservatively. However, the red zone will often contain whatever local variables -- including arguments (which are an awful lot like local variables, really) -- that were written there when the current frame called a function somewhere, pushing a frame below. Hence the need for objc_clear_stack(). Among other things, it clears the red zone. (Don't let the details scare you -- as long as you are using the recommended run loop / grand central dispatch mechanisms for looping and waiting, clearing the stack is handled automatically. That is, very very few developers will ever run into a need to deal with this directly). Sorry if this is dumb question. I am struggling to comprehend just what the ObjectGraph tool is telling me. Docs seem MIA for this tool (or maybe it's me that's MIA). File a bug, please! Most of my rooted objects are statically allocated singletons. ObjectGraph correctly identifies them as single roots. Good. Note that you can also use gdb to perform the same analysis. In any GC'd program, 'info gc-roots addr' and 'info gc-referers addr' can be used to interrogate the connectivity of the object at addr. b.bum ___ 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: Bold Braille
In my braille app, the font Apple Braille looks kind of wimpy when printed. Some people say it's hard to read. I thought I'd try making it bold, but for some reason, Apple Braille does not go bold in any app I've tried. ... 3) Is there another way to make my braille look heavier? You might try using NSStrokeWidthAttributeName with a negative value: http://lists.apple.com/archives/Cocoa-dev/2004/Jun/msg01747.html You'll want to apply that attribute and your font to an NSAttributedString. ~Martin ___ 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
Exception thrown in _NXCreateWindow: reference offset exceeds bounds
Hi, I just got this report about a crash on launch, while loading the nib. Any ideas what the problem might be? I'm clueless. Thanks! 2010-01-05 10:44:39 +1100: CGSResolveShmemReference : window.RO : Reference offset (37632) exceeds bounds (32768) on shmem obj 0x60b 2010-01-05 10:44:39 +1100: kCGErrorFailure: CGSNewWindowWithOpaqueShape: Cannot map window information shmem 2010-01-05 10:44:39 +1100: kCGErrorFailure: Set a breakpoint @ CGErrorBreakpoint() to catch errors as they are logged. 2010-01-05 10:44:39 +1100: An uncaught exception was raised 2010-01-05 10:44:39 +1100: Error (1000) creating CGSWindow 2010-01-05 10:44:39 +1100: *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Error (1000) creating CGSWindow' *** Call stack at first throw: ( 0 CoreFoundation 0x928b340a __raiseError + 410 1 libobjc.A.dylib 0x92e44509 objc_exception_throw + 56 2 CoreFoundation 0x928b3138 +[NSException raise:format:arguments:] + 136 3 CoreFoundation 0x928b30aa +[NSException raise:format:] + 58 4 AppKit 0x968ddca5 _NXCreateWindow + 316 5 AppKit 0x968ddab0 _NSCreateWindow + 59 6 AppKit 0x968dccd6 -[NSWindow _commonAwake] + 1784 7 AppKit 0x968d98fa -[NSWindow _commonInitFrame:styleMask:backing:defer:] + 1524 8 AppKit 0x968d8549 -[NSWindow _initContent:styleMask:backing:defer:contentView:] + 1568 9 AppKit 0x96909782 -[NSPanel _initContent:styleMask:backing:defer:contentView:] + 89 10 AppKit 0x968d7f23 -[NSWindow initWithContentRect:styleMask:backing:defer:] + 71 11 AppKit 0x96909719 -[NSPanel initWithContentRect:styleMask:backing:defer:] + 103 12 myApp0x00056e4b 0x0 + 355915 13 AppKit 0x96956b86 -[NSWindowTemplate nibInstantiate] + 588 14 AppKit 0x968c7ca4 -[NSIBObjectData instantiateObject:] + 253 15 AppKit 0x968c6faa -[NSIBObjectData nibInstantiateWithOwner:topLevelObjects:] + 336 16 AppKit 0x968c5450 loadNib + 257 17 AppKit 0x968c4848 +[NSBundle(NSNibLoading) _loadNibFile:nameTable:withZone:ownerBundle:] + 228 18 AppKit 0x968c4759 +[NSBundle(NSNibLoading) loadNibFile:externalNameTable:withZone:] + 158 19 AppKit 0x968c46a4 +[NSBundle(NSNibLoading) loadNibNamed:owner:] + 383 20 AppKit 0x968c14a9 NSApplicationMain + 434 21 myApp0x27e2 0x0 + 10210 ) ___ 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: Looking up a NSString constant at runtime
I can open a library and lookup a function by name using dlsym. These constants are EXTERN. It seams there should be away to look these up as well. -dave On Mon, Jan 4, 2010 at 3:39 PM, Scott Ribe scott_r...@killerbytes.comwrote: What if I'm getting a string passed in that is the name of the constant and I want to return the constants string value. Is there a way to do that? This is C, and just as with variables, the names are not there at runtime. If you really need to do this, you'll have to build your own lookup table, possibly using some macro magic to avoid having to type the name twice for each entry. -- Scott Ribe scott_r...@killerbytes.com http://www.killerbytes.com/ (303) 722-0567 voice ___ 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: Looking up a NSString constant at runtime
On 05/01/2010, at 11:03 AM, David Alter wrote: I can open a library and lookup a function by name using dlsym. These constants are EXTERN. It seams there should be away to look these up as well. Functions are not the same, because a function's name is a necessary part of the runtime. A constant's name is just a convenience for the programmer and doesn't make it into the binary. There is no built-in standard way to do this - you're on your own. --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
[MEET] Toronto Area Cocoa WebObjects Developer Group - January 26
The next meeting of tacow/Toronto CocoaHeads will be held on Tuesday, January 26 at 6:30 PM at Ryerson University. Note that this meeting is two weeks later than usual; also, we're no longer using the same meeting room. Up-to-date info and directions are available at http://groups.google.com/group/tacow and http://tacow.org/. Karl Moskowski kolpa...@voodooergonomics.com Voodoo Ergonomics Inc. http://voodooergonomics.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: Re: NSSearchField and bindings question
On Jan 4, 2010 5:15pm, Saurabh Sharan saurabh.sha...@isharan.com wrote: You're not alone -- happened to me too. Though, when I downloaded the code from pragprog.com, it worked. - Saurabh On Sun, Jan 3, 2010 at 10:11 PM, lorenzo7...@gmail.com wrote: I'm going the Zarra book, Core Data and I;ve reached the section where an NSSearchfield is bound to one of the arrays used in the sample application (page 43). As instructed in the book, I configured the NSSearchfield's predicate binding as follows: Controller Key: filterPredicate Model Key Path: name Display Name: predicate Predicate Format: keyPath contains $value This did not work and the NSTableView (column) which should update itself from the NSArrayController does nothing. I found an example of this sort of thing here: http://homepage.mac.com/mmalc/CocoaExamples/controllers.html and found that the binding in the second predicate used for the NSSearchfield is configured like this: Controller Key: filterPredicate Model Key Path : Display Name: Last Name Predicate Format: lastName contains[cd] $value I configured my predicate binding fashion and it works. So my question is: Did I miss something in the book, or is the book wrong? 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/saurabh.sharan%40isharan.com This email sent to saurabh.sha...@isharan.com Thanks for the reply. The downloadable code differs from the book as well: Controller Key: filterPredicate Model Key Path: Display Name: Recipe Name --- Here is one difference, book uses 'predicate' Predicate Format: name contains[c] $value --- Here is another, book uses 'keyPath contains $value' This works. So, if not anything else, I know of two ways to do this now. Thanks again. ___ 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: Looking up a NSString constant at runtime
On 4/Jan/2010, at 4:24 PM, glenn andreas wrote:
CFBundle has routines for looking up both functions and data by name. It
does require you figure out what framework the symbol comes from (and then
get the corresponding CFBundle), but it is doable.
Cool, I didn't know that CFBundle exposed access to external symbols at run
time! I've always used nm (or some such) to look at the symbol table. This
was a fun exercise to work out how to get access to the value of the symbol at
runtime. Apologies if I've done something weird, I don't work in CF very often.
If you know the bundle identifier, then it would seem that this code will find
the symbol and allow access to its value:
CFBundleRef bundle =
CFBundleGetBundleWithIdentifier(CFSTR(com.apple.AppKit));
if(bundle){
NSString **pointer = (NSString **)CFBundleGetDataPointerForName
(bundle, CFSTR(NSDeviceResolution));
if(pointer){
NSLog(@NSDeviceResolution = %@, *pointer);
}
}
If you don't know the bundle identifier then I assume you have to iterate over
the available bundles (left as an exercise for someone else. ;-)
As to the usefulness of this, I can't say. The original poster never said why
they were trying to do so I don't know if this will be suitable for the task...
Today however, at this moment, it worked for me!
M.
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Question about multiple MOCs on shared PSC
So, I thought I could create a new NSManagedObjectContext given the NSPersistentStoreCoordinator of a different MOC, and that it would be a completely blank context. But it turns out fetches for objects will fetch anything out of the store(s). This makes sense, but isn't what I wanted. I really wanted to have to create all new objects in the new MOC, and then add those to the store, and otherwise treat the MOC as if it were a blank slate (i.e., do fetches, etc and not have any problems). So, it looks like I need to create a new standalone MOC, and then manually integrate the changes back into the old one. Before I proceed with that, can anyone tell me if that's not the case? TIA! Rick P.S. It may not be as bad as all that; I may be able to do what I need to with no Fetches done in the MOC. -- Rick ___ 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: Looking up a NSString constant at runtime
Ah yes, external symbols in a dynamic library--you do have some chance of looking them up at run time ;-) -- Scott Ribe scott_r...@killerbytes.com http://www.killerbytes.com/ (303) 722-0567 voice ___ 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
NSViewController view swapping where to put the buttons at?
Hi all, My end goal is to have an interface that swaps views and performs actions at each of those views, with the ability to go back and forth over those views. Not sure how to do this I found something similar to what I want to do in View swapping using a view controller. So I have a Main Window, that contains a NSView aka the right side of a vertical split view object and I have set up a situation using multiple xib interfaces containing views to swap. Using an NSViewController object by following the example (http://developer.apple.com/mac/library/samplecode/ViewController/). This issue I am running into is where to place the buttons at to control swapping between views. At certain times I don't want the buttons to be there unless certain conditions are met. So that led me to the idea of placing the buttons I want within the Views, this is different from the example which provides a drop-down menu that's always visible as provided in the example. So I have a refresh button (left side of the split view)that checks that the conditions are right, if they are it loads the first view, I have this part working. The part I am having trouble with is getting the buttons I make in each view to call a method in the Window Controller. I figured swapping in out views would be a much better solution than doing a whole lot of setHidden: calls. The Views that I am swapping in are subclasses of NSViewController. I have tried adding a NSObject in Interface Builder and classing it to that of my Window controller, this allows me to connect the button to the method, but causes a init loop, when I remove the refresh button method call from awakeFromNib that causes the init infinite loop to stop but now view swapping does not happen, even though my logs say the method is being called. I am new to Cocoa Development so any guidance and suggestions are welcomed, it seems like I am doing this the hard way... Thanks, Dan ___ 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: help a brother out?
Any discussion of copying will result in removal from the list and Apple WWDR and legal departments being notified. [moderator] On Jan 4, 2010, at 6:14 PM, PCWiz wrote: Hi Ryan, Long time no talk, but distros aren't a good way to go with Snow Leopard. Retail install is easier and better. Independent Cocoa Developer, Macatomy Software http://macatomy.com On 2010-01-04, at 12:31 PM, Ryan R. Moos wrote: any chance you might know a rapidshare link for OS X 10.6 Snow Leopard Universal v3.6? Long ago you pointed me in the right direction for Kalyway ___ 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: NSXMLParser problems
I am an XML parsing noob, but I do it all the time in AS3, etc. I have the
following methods... I was expecting something to be called in the delegate
methods, but I don't get anything. Shouldn't I be getting something...
although the Yahoo! API is supposed to return XML, it's really a weird
bastardization of XML and HTML:
- (void)parserDidStartDocument:(NSXMLParser *)parser {
NSLog(@parserDidStartDocument);
}
- (void)parser:(NSXMLParser *)parser parseErrorOccurred:(NSError
*)parseError {
NSLog(@Parsing Error);
}
- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName
namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName
attributes:(NSDictionary *)attributeDict {
NSLog(@didStartElement);
//not sure how to handle namespaces in obj-c
if( [elementName isEqualToString:@yweather:condition]){
NSString *thisOwner = [attributeDict objectForKey:@text];
NSLog(@%@, thisOwner);
}
}
// I send this a string, ie. 01701
+(NSString*)getWeatherXmlForZipCode: (NSString*)zipCode {
NSError *error;
NSURLResponse *response;
NSData *dataReply;
NSString *stringReply;
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL: [NSURL
URLWithString: [NSString stringWithFormat:@
http://weather.yahooapis.com/forecastrss?p=%@;, zipCode]]];
[request setHTTPMethod: @GET];
dataReply = [NSURLConnection sendSynchronousRequest:request
returningResponse:response error:error];
stringReply = [[NSString alloc] initWithData:dataReply
encoding:NSUTF8StringEncoding];
NSString *header = @?xml version=\1.0\ encoding=\UTF-8\?;
NSString *xml = [NSString stringWithFormat:@%...@\n%@, header, stringReply];
NSData *data = [xml dataUsingEncoding:NSUTF8StringEncoding];
NSXMLParser *parser = [[NSXMLParser alloc] initWithData:data];
[parser setDelegate:self];//should allow the methods above to be called when
I parse?
[parser setShouldResolveExternalEntities:YES];
[parser setShouldProcessNamespaces:YES];
[parser parse];
//NSLog(stringReply);
return stringReply;
}
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Re: NSViewController view swapping where to put the buttons at?
On 05/01/2010, at 11:45 AM, Dan wrote: My end goal is to have an interface that swaps views and performs actions at each of those views, with the ability to go back and forth over those views. Not sure how to do this I found something similar to what I want to do in View swapping using a view controller. So I have a Main Window, that contains a NSView aka the right side of a vertical split view object and I have set up a situation using multiple xib interfaces containing views to swap. Using an NSViewController object by following the example (http://developer.apple.com/mac/library/samplecode/ViewController/). This issue I am running into is where to place the buttons at to control swapping between views. At certain times I don't want the buttons to be there unless certain conditions are met. So that led me to the idea of placing the buttons I want within the Views, this is different from the example which provides a drop-down menu that's always visible as provided in the example. So I have a refresh button (left side of the split view)that checks that the conditions are right, if they are it loads the first view, I have this part working. The part I am having trouble with is getting the buttons I make in each view to call a method in the Window Controller. I figured swapping in out views would be a much better solution than doing a whole lot of setHidden: calls. The Views that I am swapping in are subclasses of NSViewController. I have tried adding a NSObject in Interface Builder and classing it to that of my Window controller, this allows me to connect the button to the method, but causes a init loop, when I remove the refresh button method call from awakeFromNib that causes the init infinite loop to stop but now view swapping does not happen, even though my logs say the method is being called. I am new to Cocoa Development so any guidance and suggestions are welcomed, it seems like I am doing this the hard way... The buttons that control the view swapping don't want to be in the views that are swapped. They ought to be external to them, and handled by a separate (master?/parent?) controller. If they need to be conditionally hidden, then maybe an informal protocol implemented by each view sub-controller can return whether a given button should be hidden or shown, and the master controller can then ask the subcontroller what to show/hide that way. It sounds like you have something like a master/detail interface - if so then searching the archives and docs for those terms should unearth plenty of discussion and approaches. --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
Weird issue with BDAlias/FSRefs and the case of filesystem paths
Hi everyone, I'm using the BDAlias wrapper (http://github.com/rentzsch/bdalias) for handling alias records so that my app manages files better when they're moved or renamed. Things were working fine but recently, for no apparent reason, any alias that points to a file in the Users folder returns a lowercase users filename for the Users folder rather than the normal Users. This means that my paths look like this: /users/rob/some/file.html rather than this: /Users/rob/some/file.html If I use any of the Cocoa methods to select a file such as NSOpenPanel, or just print NSHomeDirectory(), I get the correct result, Users. In the Finder and when using Terminal, the folder is named Users. From what I can tell there are no extended attributes on the Users folder, running xattr -l -v /Users returns nothing. I've looked at the BDAlias code and it's pretty straightforward, it is just getting a CFURLRef from the path and then grabbing the FSRef from the URL, something like this: FSRef *outRef; CFURLReftempURL = NULL; Boolean gotRef = false; tempURL = CFURLCreateWithFileSystemPath(kCFAllocatorDefault, inPath, kCFURLPOSIXPathStyle, false); if (tempURL == NULL) return fnfErr; gotRef = CFURLGetFSRef(tempURL, outRef); When the BDAlias object is asked for its path it does the reverse, and gets the path from the FSRef via a CFURL: CFURLCreateFromFSRef(kCFAllocatorDefault, inRef); if (tempURL == NULL) return NULL; CFStringRef result = CFURLCopyFileSystemPath(tempURL, kCFURLPOSIXPathStyle); This all seems fine, and the only things I can think of is that there is some weird bug in CoreFoundation that's causing this or that my drive is corrupted in some weird fashion, although Disk Utility reports no problems. Interestingly, on my system other apps such as BBEdit and Coda also exhibit this behaviour. In BBEdit for example, if I choose Edit Insert File/Folder Paths then I get /users/rob/some/file.html. I assume that's because it's also using FSRefs internally. I don't understand what could be happening here, does anyone have any clues? I've never seen anything like this. -- Rob Keniger ___ 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
Getting warning when saving merged MOC
I'm slowly but surely getting the hang of using multiple MOCs. I'm successfully creating objects in MOC B and merging those changes into the existing MOC A, and seeing the UI bound to MOC A update to reflect the changes. The problem I'm seeing now is that MOC A then becomes dirty, and wants to be saved. If I save it, I get a warning that This document’s file has been changed by another application since you opened or saved it. The changes made by the other application will be lost if you save. Save anyway? The thing that's a bit wonky here is that these changes are already saved in the store, because that's how the MOCs got merged in the first place (the dirty flag is being set by my call to -mergeChangesFromContextDidSaveNotification:). There's definitely no other app involved. The changes in MOC B consist of all new objects, and a relationship between an old object and a new one. This is a to-many relationship, that is, the old Group entity picks up another Part entity. Am I doing something wrong, or failing to take some step to avoid this confusion? There may be legitimate changes in MOC A that need to be saved, but the merged changes should already be in the store. TIA, Rick ___ 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
