I thought I understood bindings.
> To: "Cocoa List"
> Date: Wednesday, October 8, 2008, 5:27 PM
> On 09/10/2008, at 10:21 AM, Chris Idou wrote:
>
> > It seems that the bindings are only working in one
> direction.
> > Editing the fields updates the object, but
> and
> [object2 bind:@"value" toObject:object1
> withKeyPath:@"whateverPathForKeyIs" options:nil];
>
> Otherwise, make sure you're content object is KVC/KVO
> compliant etc.
>
> Tim
>
>
> On 9 Oct 2008, at 01:21, Chris Idou wrote:
>
> >
&g
If all you actually want is a flag, why not just have a flag? When the other
thread gets around to examining the flag, it can do what it wants.
If you need to synchronize access to the flag, because say, the number of times
they press the button is significant, then put an @synchronized directiv
ons:nil];
>
> Otherwise, make sure you're content object is KVC/KVO
> compliant etc.
>
> Tim
>
>
> On 9 Oct 2008, at 01:21, Chris Idou wrote:
>
> >
> > I've got an NSObjectController controlling an
> object. This content
> > object&#
I want to be able to drag strings out of a table into another field, but I must
be missing something major because drags never get initiated. I've added the
delegate, registered drag types and added delegate methods, but clicking and
dragging within the table simply selects rows in the table, dr
--- On Fri, 10/10/08, Ian Joyner <[EMAIL PROTECTED]> wrote:
> I'll have to think more about this. I'm not sure
> that KVO can't be
> done in a type-safe manner.
I guess KVO can be done in a type safe manner, but not with the interesting way
that objective-c does it. i.e. it can synthesize all
gt;
> Subject: Re: NSTableView and drag and drop
> To: [EMAIL PROTECTED]
> Cc: cocoa-dev@lists.apple.com
> Date: Friday, October 10, 2008, 11:50 PM
> Have a look at
> /Developer/Examples/Appkit/DragaNDropOutlineView
>
> On 11-Oct-08, at 9:06 AM, Chris Idou wrote:
>
> return YES. In
> your case you can simply write the string contents of the
> represented
> object in to the pasteboard for the NSStringPasteboardType
> and return
> YES
>
> Go through protocol.
> HTH,
> Chaitanya
>
> On 11-Oct-08, at 7:31 PM, Chris
I'm trying to modify the default behavior of an NSTextView to behave
more like that of programming IDEs (xcode or textmate) where if you
tab over and then press return, it automatically tabs you to the same
indentation level on the new line.
Could someone point me in the right direction? My guess
as a prefix header doesn't guard
against inclusion in plain C or C++ source files, unfortunately.
You'll have to switch the target's prefix header to a local prefix
that includes an #ifdef __OBJC__/#endif around the #import of Cocoa.h>, one of which
Does anyone know if you can use this mechanism for dotted values, or does it
have to be a value local to the object?
For example, could you say that field "a" depends on "b.c"? I'm trying to do
that but it doesn't seem to work or me.
___
urns an id. You can define them as returning
something different but the compiler will ignore it.
> Best solution is just not to make the methods look the same.
That's not always convenient. For example, it's nice to be able to do
[NSStrin
.e. define the alloc method in such a way so that the
compiler knows that -[ alloc] returns an object of type
. Something similar could be used for [NSString string] and
[NSMutableString string] which have a similar problem (they return an
id, rather than an NSString or NSMutableString).
-- Chris
change the names of
your methods (which might make sense given that "context" doesn't tell
you much) or cast the return from alloc to the appropriate type. You
could use a macro to make it slightly more readable.
-- Chris
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ileNameChars (rather than the
UTF-16 length).
You should report it.
-- Chris
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On Wed, Oct 15, 2008 at 9:03 PM, John Engelhart
<[EMAIL PROTECTED]> wrote:
>
> On Oct 14, 2008, at 7:11 AM, Chris Suter wrote:
>>
>> You can't override the type for existing methods. For example,
>> initWithString: always returns an id. You can define them as r
For one of my attributes I can't seem to get keyPathsForValuesAffecting to
do its thing. The following is my code. I'm observing both keys to try and find
out what's going on. keyPathsForValuesAffectingCanLink does get called.
observeValueForKeyPath gets called for key noteController.linkableSe
Works for me.
-(void)aMethod:(void *)mem {
NSLog(@"mem2: %d", mem);
}
- (void)awakeFromNib {
void *memory = malloc(1);
NSLog(@"mem1: %d", memory);
[self aMethod:memory];
}
2008-10-16 11:40:36.815 aProg[30378:813] mem1: 2439440
2008-10-16 11:40:36.815 aProg[30378
nesday, October 15, 2008, 5:42 PM
> On Oct 15, 2008, at 7:16 PM, Chris Idou wrote:
>
> > For one of my attributes I can't seem to get
> > keyPathsForValuesAffecting to do its thing.
> The following is my
> > code. I'm observing both keys to try and f
AIL PROTECTED]>
> Subject: Re: tearing my hair out: +(NSSet
> *)keyPathsForValuesAffectingValueForKey:
> To: [EMAIL PROTECTED]
> Cc: "Cocoa Developers"
> Date: Wednesday, October 15, 2008, 5:54 PM
> On Oct 15, 2008, at 8:46 PM, Chris Idou wrote:
>
> >
A category could be a nice OO solution here that avoids having the dreaded if
else.
--- On Wed, 10/15/08, Ken Ferry <[EMAIL PROTECTED]> wrote:
> From: Ken Ferry <[EMAIL PROTECTED]>
> Subject: Re: Comparing the Class
> To: "Graham Cox" <[EMAIL PROTECTED]>
> Cc: "cocoa-dev Dev"
> Date: Wednesda
I've attached code that shows what I'm talking about with my
keyPathsForValuesAffectingValueForKey problem. If anyone wants me to send a zip
file (60kb) xcode project, jet let me know. For those who just want to see the
code, I've appended it here also. To compile, just put the 2 classes in a
p
uincey Morris <[EMAIL PROTECTED]>
> Subject: Re: tearing my hair, ok here is a compilable example.
> To: cocoa-dev@lists.apple.com
> Date: Wednesday, October 15, 2008, 10:54 PM
> On Oct 15, 2008, at 22:13, Chris Idou wrote:
>
> > @class Class1;
> > @interface Clas
if (context == [Class2 class])
> {
> if ([keyPath
> isEqualToString:@"myMethod"])
> {
> NSLog( @"newvalue - myMethod:%d",
> [self myMethod] );
> }
> }
> else
> {
> [supe
Why don't you make it a regular Cocoa app that doesn't open any windows and
doesn't have a dock icon?
--- On Thu, 10/16/08, XiaoGang Li <[EMAIL PROTECTED]> wrote:
> From: XiaoGang Li <[EMAIL PROTECTED]>
> Subject: how to use the loginItem in OSX 10.3?
> To: cocoa-dev@lists.apple.com
> Date: Th
Ok, I see it is caused by NSObjectController. Is everyone agreed it is a bug?
It's still quite odd that it only occurs if loaded from a NIB, but works ok if
manually instantiated.
--- On Thu, 10/16/08, Chris Suter <[EMAIL PROTECTED]> wrote:
> From: Chris Suter <[EMAIL PROT
On Thu, Oct 16, 2008 at 7:54 PM, Chris Idou <[EMAIL PROTECTED]> wrote:
> I disagree. I changed both to be NSObjects, and nothing changed.
I think it is to do with it being a subclass of NSObjectController.
Changing it to an NSObject makes it work for me.
ncy.
Xcode's model compiler will generate warnings and errors to enforce
that consistency during model compilation.
-- Chris
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appropriate calls to unlink() when it's passed a properly-acquired-and-
validated right.
-- Chris
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I seem to be getting erratic behaviour from toolbar button isEnabled bindings.
In some scenarios they don't seem to work correctly.
I've tried putting the exact same binding criteria on some regular buttons just
to see what happens, and they seem to work correctly when the toolbar buttons
don'
ng
> To: [EMAIL PROTECTED]
> Date: Tuesday, October 21, 2008, 3:59 PM
> You can try to disable Autovalidates.
>
>
> On Oct 21, 2008, at 5:04 PM, Chris Idou wrote:
>
> >
> > I seem to be getting erratic behaviour from toolbar
> button isEnabled
> > bindings
ely.
Have people noticed these situations? What causes them, and when should I look
out for it?
Re: Toolbar buttons and isEnabled binding
> From: Chris Idou <[EMAIL PROTECTED]>
> Subject: Toolbar buttons and isEnabled binding
> To: cocoa-dev@lists.apple.com
> Date: Tuesday, Octobe
t; Subject: Re: When does Cocoa fall apart? (Run loops)
> To: [EMAIL PROTECTED]
> Cc: cocoa-dev@lists.apple.com
> Date: Wednesday, October 22, 2008, 2:42 AM
> in the latter, are you in a secondary thread? This could
> explain your
> problem.Otherwise, I did not experience that lately.
&
Adobe Illustrator CS3 and up has a feature called "live trace" which is like
the old Streamline program, to trace raster images into vector format.
There is also an app called Vector Magic that can vectorize images, there is a
demo online somewhere.
As a professional graphic designer breaking in
I'm calling commitEditing on a NSObjectController, and its returning NO, for no
apparent or obvious reason.
How am I supposed to debug these things?
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e.com
> Date: Wednesday, October 22, 2008, 7:18 AM
> On Wed, Oct 22, 2008 at 9:56 AM, Chris Idou
> <[EMAIL PROTECTED]> wrote:
>
> > The problem I reported recently where
> NSObjectController screws up KVO has been confirmed by Apple
> as a real bug as well. I'm
re is some other, more acceptable, best practice with respect
to log file location. So... is there a best practice? Is is documented
anywhere in Apple doc? Where should I go to read about accepted usage
of the /Library and user/Library directories and the files therein?
Thanks in adva
be used specifically for
this purpose by some number of apps on my system.) Still, it's worth
noting the existence of this other directory.
Thanks again.
Chris
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uture as we become more and more OS X-aware. Thanks for the
tip...
Chris
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--- On Wed, 10/22/08, Ron Lue-Sang <[EMAIL PROTECTED]> wrote:
> The only reason a controller would return NO for
> commitEditing is that
> one of *its* editors refused to commitEditing.
It's not clear to me what "its editors" are. All I've got is an object with
some fields, with an NSObjectCont
Surely there should be a way to warn on any conversion where data is lost,
even if it is not on by default. The compiler knows when this is happening,
the author may not.
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Has anyone found a way to make a row in the NSPredicateEditor to have
components taller than the standard height or a more complicated arrangement of
components, or are you pretty much limited to one row of buttons, and text
fields and similar sized components?
Programs like Hazel are able to
Interesting, but that's no longer ansi-C. Plus it still won't support you
creating your own kinds of format strings.
--- On Sun, 10/26/08, Chris Suter <[EMAIL PROTECTED]> wrote:
> From: Chris Suter <[EMAIL PROTECTED]>
> Subject: Re: Just starting off in obj C
&g
I'm getting the following error:
In , different number of items (3) than predicate
template views (4) for template
>From experimenting, the only difference between the
>NSPredicateEditorRowTemplate that is failing and my other ones that work fine,
>is that this one has a NSButton in its list
itration; there's no other
way for it to work.
-- Chris
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Hel
oa-dev@lists.apple.com
> Date: Tuesday, October 28, 2008, 11:41 AM
> On Oct 27, 2008, at 10:07 PM, Chris Idou wrote:
>
> >
> > I'm getting the following error:
> >
> > In , different
> number of items (3)
> > than predicate template views (4)
t was trying to allocate when
it failed.
If you're that interested, you can look at the source code. It's open source.
This is straying a bit off-topic for the Cocoa list.
-- Chris
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Please
ks. I think the 2 MB must come from a large
allocation or from one of the other data structures.
-- Chris
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0
zsh: illegal hardware instruction dead
%
% NSZombieEnabled=YES ./dead
2008-10-30 10:39:35.736 dead[12323:10b] *** -[NSObject self]: message
sent to deallocated instance 0xc048b0
zsh: trace trap NSZombieEnabled=YES dead
Chris Kane
Cocoa Frameworks, Apple
On Oct 30, 2008, at 10:03, Michae
I for one would love for it to start up again. Anything we can do?
Thanks,
Chris
On Thursday, October 30, 2008, at 02:10PM, "Jay Reynolds Freeman" <[EMAIL
PROTECTED]> wrote:
>Excuse me wasting bandwidth, but I have the impression that the
>Silicon Valley CocoaHeads gro
unction to conform to the NSCopying protocol.
-- Chris
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I was puzzled why tokenField:writeRepresentedObjects:toPasteboard: delegate
function wasn't called when dragging from an NSTokenField. Then on a hunch I
tried setting the delegate of the NSTokenFieldCell, and then it started getting
called.
Is that what I am supposed to do? Does the documentat
As of Leopard, you need to do this:
sudo touch /var/log/do_dnserver_log
sudo touch /var/log/dnserver.log
sudo chown daemon /var/log/dnserver.log
as the daemon can't create that file itself in that location any longer.
But you can find the logs in the "system.log" in Console.ap
I uploaded a mini project here:
http://idisk.mac.com/chris.bitmead-Public?view=web
Can anyone tell me why writeRepresentedObjects isn't called on the
TokenDelegate when you drag a token from one field to the other?
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iew. Or even just put it within your
window/panel's content view, covering 100% of its area, with its
springs and struts set appropriately.
-- Chris
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I don't seem to be having much luck getting localization to work. I've got a
utf16 strings file in my project called MetaData.strings that contains:
"kMDItemFSLabel" = "color label";
Then in my code...
[[NSBundle bundleForClass:[self class]] localizedStringForKey:@"kMDItemFSLabel"
value:@"not
> Do you really mean this? As far as I've heard,
> Apple's official
> stance has never been to classify Carbon as a legacy
> technology
> (though they've certainly taken all the steps). Can we
> finally settle
> this issue and start calling things as they are?
>
> Of course there is the whole i
Has anyone been able to add menu items to the first popup while it is running?
Or are you pretty much stuck with whatever the initial values were? I've tried
various things and haven't been able to do it.
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ggests darwin-dev might be a better place. I'm surprised there
doesn't seem to be a porting-from-Windows list.
Cheers,
Chris
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ing *familyName;
@property (readonly) NSString *fullName;
@end
Atomic properties only guarantee that you won't get back a zombie from
any of the above properties. They make no guarantee that fullName
won't be "Cem Hanson" or "Chris Karan."
Furthermore, if anything is
;pages" options:nil];
The same is true for things like NSNotification names, various known
NSDictionary keys, and so on -- if there's a named constant, use it,
rather than make an assumption about what its value is.
-- Chris
___
ying
objects the pop-up represents.
One other thing to ensure is that you're *only* using the specific
Masters controller you set up in Step #2 for populating this pop-up.
One common issue is to try to "consolidate" controllers; since
bindings are generally two
.
Views in Cocoa don't hold data, they just present it.
-- Chris
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s on your data distinct from your
user interface, you can much more easily scale your logic along with
the user's hardware, and keep debugging of both your UI and logic
straightforward.
-- Chris
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How does one obtain a list of all the UTI file types known to the system?
And then for a given UTI, how does one obtain a human readable representation
of it?
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PROTECTED]>
> Subject: Re: How to get a list of all known file types?
> To: [EMAIL PROTECTED]
> Cc: cocoa-dev@lists.apple.com
> Date: Thursday, November 6, 2008, 4:09 PM
> On Nov 6, 2008, at 4:00 PM, Chris Idou wrote:
>
> > How does one obtain a list of all the UTI fil
are interested in.
--- On Thu, 11/6/08, j o a r <[EMAIL PROTECTED]> wrote:
> From: j o a r <[EMAIL PROTECTED]>
> Subject: Re: How to get a list of all known file types?
> To: [EMAIL PROTECTED]
> Cc: cocoa-dev@lists.apple.com
> Date: Thursday, November 6, 2008, 4:32 P
om
> Date: Thursday, November 6, 2008, 6:48 PM
> On Fri, Nov 7, 2008 at 2:12 PM, Chris Idou
> <[EMAIL PROTECTED]> wrote:
> >
> > I've got an app which is matching on file types,
> so I want the user to be able to say "show me all
> the... say... MS-Word docu
s, and generate
entities that will be backed by those classes. Then you can change
your superclasses to NSManagedObject, remove your ivars, adjust or
eliminate your accessors, and have converted an existing app to use
Core Data for its object graph management.
-- Chris
On Nov 8, 2008, at
any light on what's wrong here? Hopefully the above is
> enough to go on.
The order of evaluation of the arguments to a function is undefined so
you have a problem where you're taking the address of wptr and you're
pre-decrementing it.
-- Chris
__
dn't look at it closely enough.
Nevertheless, I believe that's what the compiler was getting at
(albeit erroneously).
-- Chris
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need otherwise). If I were you, I'd create a new object. You might
find that you want to add more columns to the table in future.
-- Chris
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NSExpression contains the following mysterious information:
"All methods must take 0 or more id arguments and return an id value, although
you can use the CAST expression to convert datatypes with lossy string
representations (for example, CAST(, "NSDate")). The CAST
expression is extended
I would say it depends on how big the dataset is. If the data is small and/or
you have to slurp it all into memory anyway, then I like the simplicity of just
keeping it as XML. But if the data is arbitrarily large and/or you don't want
it all in memory at once, then going to sqlite becomes some
CocoaFundamentals/CocoaObjects/chapter_3_section_9.html#//apple_ref/doc/uid/TP40002974-CH4-DontLinkElementID_105>
-- Chris
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://nikitadanilov.blogspot.com/2005/07/vaargs-c99-compound-literals-safe.html.
-Chris
2008/11/17 Oleg Krupnov <[EMAIL PROTECTED]>:
> I apologize, this is plain old C, not Cocoa-specific question, but the
> fastest way to get the answer.
>
> I want to create a function that finds
omewhere. And if
it's an important app, we often can't introduce the pool we wanted to
due to binary compatibility, which means everybody loses if it would
have improved typical app performance.
Chris Kane
Cocoa Frameworks, Apple
___
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--- On Wed, 26/11/08, Michael Robinson <[EMAIL PROTECTED]> wrote:
> I too had a horrible time implementing this.
>
> Below I've pasted the code that handles dnd re-ordering
> in my table.
>
> Basically it just makes a copy of the dragged row, deletes
> it, then rebuilds the array, inserting the
The core-data documentation seems very vague about whether multiple threads
should use different NSManagedObjectContexts but one
NSPersistentStoreCoordinator, or multiple coordinators.
I've got an app where one thread needs to write, and one (or maybe more)
threads need to read. One or more co
, if this is something you'd like to see API for, please file
a feature request at http://bugreport.apple.com/ and describe what
you'd like to be able to do and why.
Thanks!
-- Chris
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I want to have a separate thread in my app which does time consuming things. I
want to assign tasks to this thread using performSelector:onThread.
Now you can't have a runloop with no input sources, or it exits immediately. So
how do I start a thread with a runloop that does nothing except pati
Good question. I had assumed that something like
[myThread performSelector:@selector(exit) onThread:myThread ...
would do the trick. Would this be a "nice" way to do it?
>
> Chris Idou wrote:
>
> >I want to have a separate thread in my app which does
> time consum
Maybe you could launch your own untitled document, if that's what you need?
--- On Wed, 3/12/08, Sean McBride <[EMAIL PROTECTED]> wrote:
> From: Sean McBride <[EMAIL PROTECTED]>
> Subject: How to display simple dialog at application startup?
> To: cocoa-dev@lists.apple.com
> Received: Wednesday,
I've got a main thread that handles a gui, and a worker thread with its own
persistentStoreCoordinator and managedObjectContext. The gui notifies the
worker thread of a change, passing it an objectID, and the worker thread gets
the object, and other objects it is connected to, and calls
[manag
NSString *name;
You can then write "NSString *n = bird.name;" and the compiler will
generate an invocation of -BIRD_NAME.
-- Chris
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<[EMAIL PROTECTED]>
> Subject: Re: core data, refreshObject, multiple threads
> To: cocoa-dev@lists.apple.com
> Cc: [EMAIL PROTECTED]
> Received: Friday, 5 December, 2008, 4:04 PM
> Hi Chris,
>
> On 5/12/08, Chris Idou <[EMAIL PROTECTED]> wrote:
>
&
t; Received: Sunday, 7 December, 2008, 5:45 AM
> Chris,
>
> Can you make use of the -
> (void)refreshObject:(NSManagedObject *)object
> mergeChanges:(BOOL)flag method on NSManagedObjectContext?
See my original posting below.
>
> Thanks
> --
> John Clayton
> Skyp
I'm a bit confused by your post. NSPredicateEditor doesn't compare any dates,
it just creates NSPredicates. Maybe you're saying that if you have a
NSDatePicker in your NSPredicateEditor, that it creates a predicate with a date
set to 13:41:40. If that's the case, then it probably has more to do
is there any
> guarantee about the time of an NSDatePicker in an
> NSPredicateEditor?
>
> I created a quick test of an NSDatePicker outside an
> NSPredicateEditor and its default time seems to be 8:00:00.
>
> On Dec 7, 2008, at 5:57 PM, Chris Idou wrote:
>
> >
>
ot; time was inserted which then
> threw off anything else I did. If I only needed a date
> (from a datetime field), I had to format it that way (as
> only a date, and in the format I needed) and do some
> seemingly-odd comparison (like comparing two strings). It
> worked, so I di
if PackageMaker does the same thing? Or can it be motivated to do
so? I plan on trying this myself but I'm a PackageMaker newby and am
concerned about the influence of various settings on my experiments...
Chris
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s interpreted as a single argument.
-- Chris
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its from NSView? Or is there a more
appropriate method?
I'd appreciate any pointers in the right direction.
Chris
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Conta
I want to call a script with NSTask and I want to set an environment variable.
But it seems like bad form to blow away the current environment. So I guess I
need to read the current environment and extend it before passing it to NSTask.
Is there any Cocoa API which returns the environment as a N
ing with an invalid signature.
It wouldn't surprise me if future releases of OS X make more use of
the code signature.
By the way, you should post code signing questions to the apple-cdsa
list rather than the Cocoa list as you'll get a better response there.
-- Chris
__
I've got a modal dialog with a couple of NSTextFields. Changes weren't getting
saved, so I thought I'd better call commitEditing on the text field before
retrieving its value with stringValue.
But when I call commitEditing on the NSTextField it gives the error:
-[NSTextField commitEditing]: unr
/app show the
changed value. Anyone know what's going on here?
Thanks in advance...
Chris
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the things they wind up able to accomplish with third-party
plug-ins to your application, especially if they can do things with
plug-ins that get saved in your application's documents.
- The Apple Publications Style Guide term is "plug-in" with a hyphen
in prose, "Plug-in
trdup(), this:
char *t = [key UTFString];
char *keychar = (char *)malloc(strlen(t) + 1);
strcpy(keychar, t);
Dunno about the rest of your code, but that jumped out at me.
Cheers,
Chris
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Plea
a regular
NSWindow with a custom view?
2) How can I position the window so that it is directly below the
NSStatusItem?
Or am I going about this the wrong way.
Thanks!
--Chris
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