There is some documentation in the CoreFoundation part for all CFStringRef
formatting, which applies here.
http://developer.apple.com/Mac/library/documentation/CoreFoundation/Conceptual/CFStrings/formatSpecifiers.html#//apple_ref/doc/uid/TP40004265-SW1
laurent
On Tuesday, April 20, 2010, at
I create an object and insert it into the context, then i update a couple
properties.
Later I i do a fetch request with a predicate on the property i updated
after the insertion. If i do this fetch right after the update of the
property (using the accessors provided by coreData), then the fetch do
Hi Olivier
> I create an object and insert it into the context, then i update a couple
> properties.
>
> Later I i do a fetch request with a predicate on the property i updated
> after the insertion. If i do this fetch right after the update of the
> property (using the accessors provided by core
Hi,
I am doing some analyzing work on a WebView (going through the DOM, checking
links and texts). Since, sometimes this blocks the GUI, I am experimenting
using NSOperation/NSInvocationOperation. What confuses me is that, my
operation stops (not sure if it sleeps or is terminated) upon accessing
I'm trying to port some Carbon code that provides basic services menu
integration to a Cocoa application. This code implements the basic
Carbon event handlers for this functionality, cf:
const EventTypeSpec carbonServiceEvents[] = {
{ kEventClassService, kEventServiceGetTypes },
{ kEventCla
Hi,
I'm trying to implement a logging facility for an app that should behave quite
the same as OS X's Console.app in terms of displaying the log, i.e. an
NSTableView with varying row heights. I got it working so far, but there are
major drawing glitches when resizing the window or scrolling thr
Hello All,
I've been developing a screensaver in Objective-C using OpenGL to
render an object in wavefront .obj format. The object is displayed
and rotated on the X, Y and Z axis. I have enabled lighting and I'm
calculating surface normals so that shading works properly.
I have been dev
Hello all!
If this question doesn't belong on this list, please let me know, and
I'll try elsewhere - thanks!
WHAT I NEED:
I'm looking to find out how many lines a given string of text will
wrap to in a given NSTextField. in other words, once I know the string
and the size of the field it
Does there exist a low-memory warning for Mac apps similar to the
didReceiveMemoryWarning for the iPhone? I have looked at NSCache and other
related classes, but for my purposes it would be better to simply receive a low
memory warning and then act on the warning. Does such a warning exist for
On Apr 18, 2010, at 4:36 PM, Hao Lü wrote:
> I am doing some analyzing work on a WebView (going through the DOM, checking
> links and texts). Since, sometimes this blocks the GUI, I am experimenting
> using NSOperation/NSInvocationOperation. What confuses me is that, my
> operation stops (not sur
On Apr 20, 2010, at 10:10 AM, Bill wrote:
> Does there exist a low-memory warning for Mac apps similar to the
> didReceiveMemoryWarning for the iPhone? I have looked at NSCache and other
> related classes, but for my purposes it would be better to simply receive a
> low memory warning and the
One possibility is to install a CFRunLoopObserverRef that would query for
available memory, using task_info on mach_task_self().
Then you can check if you start to are coming nearer to "dangerous
territories". Not perfect though as usually the moment you can not alloc some
memory it can be alre
Just to clarify, when i say save, i mean call save: on the context and write
it to disk. Which the documentation state that you don't have to call save:
to be able to query for objects and that modified object will be found.
If i wait a little bit (probably for the next event in the event loop) t
On Apr 20, 2010, at 10:17 AM, Nick Zitzmann wrote:
>
> On Apr 20, 2010, at 10:10 AM, Bill wrote:
>
>> Does there exist a low-memory warning for Mac apps similar to the
>> didReceiveMemoryWarning for the iPhone? I have looked at NSCache and other
>> related classes, but for my purposes it wou
Le 20 avr. 2010 à 19:23, Bill a écrit :
>
> On Apr 20, 2010, at 10:17 AM, Nick Zitzmann wrote:
>
>>
>> On Apr 20, 2010, at 10:10 AM, Bill wrote:
>>
>>> Does there exist a low-memory warning for Mac apps similar to the
>>> didReceiveMemoryWarning for the iPhone? I have looked at NSCache and
On Apr 20, 2010, at 10:34 AM, Jean-Daniel Dupas wrote:
>
> Le 20 avr. 2010 à 19:23, Bill a écrit :
>
>>
>> On Apr 20, 2010, at 10:17 AM, Nick Zitzmann wrote:
>>
>>>
>>> On Apr 20, 2010, at 10:10 AM, Bill wrote:
>>>
Does there exist a low-memory warning for Mac apps similar to the
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Le 20 avr. 2010 à 19:36, Bill a écrit :
>
> On Apr 20, 2010, at 10:34 AM, Jean-Daniel Dupas wrote:
>
>>
>> Le 20 avr. 2010 à 19:23, Bill a écrit :
>>
>>>
>>> On Apr 20, 2010, at 10:17 AM, Nick Zitzmann wrote:
>>>
On Apr 20, 2010, at 10:10 AM, Bill wrote:
> Does there ex
On Apr 20, 2010, at 10:36 AM, Bill wrote:
>> And what make NSCache and NSDiscardableContent not appropriate here ?
>
> They are not inappropriate, but they require a lot more work than a simple
> warning sent via a notification or other means.
The iPhone has a much simpler memory model than M
On Apr 20, 2010, at 11:48 AM, Jens Alfke wrote:
>
> On Apr 20, 2010, at 10:36 AM, Bill wrote:
>
>>> And what make NSCache and NSDiscardableContent not appropriate here ?
>>
>> They are not inappropriate, but they require a lot more work than a simple
>> warning sent via a notification or oth
On Apr 19, 2010, at 11:55 AM, Paul J. Ascenzo wrote:
> I'm looking to find out how many lines a given string of text will wrap to in
> a given NSTextField. in other words, once I know the string and the size of
> the field it is going into, how do I find out how many lines the system will
> wr
RegexKitLite 4.0 has been released. Links:
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On a pe
Hi Thanks for your reply. .obj is an ASCII file format, I don't think byte
order would be an issue here.
On 2010-04-20, at 11:55 AM, A.M. wrote:
>
> On Apr 19, 2010, at 12:33 PM, Peter Willsey wrote:
>
>> Hello All,
>>
>> I've been developing a screensaver in Objective-C using OpenGL to rende
Can anyone clarify whether the NSMutableArray object's "setArray"
performs a deep copy of the NSArray provided,
or does it simply build an NSMutableArray object with
additionally-retained elements pointing back to the source object?
Thanks,
-Brent
___
On Apr 20, 2010, at 1:06 PM, Brent Fulgham wrote:
> Can anyone clarify whether the NSMutableArray object's "setArray"
> performs a deep copy of the NSArray provided,
> or does it simply build an NSMutableArray object with
> additionally-retained elements pointing back to the source object?
setArr
On Apr 20, 2010, at 1:06 PM, Brent Fulgham wrote:
Can anyone clarify whether the NSMutableArray object's "setArray"
performs a deep copy of the NSArray provided,
or does it simply build an NSMutableArray object with
additionally-retained elements pointing back to the source object?
It does no
On Tue, Apr 20, 2010 at 2:07 PM, Jens Alfke wrote:
> In general I can't think of any deep-copy behavior in any of the Cocoa
> collection classes. With one exception*, objects only get copied when you
> explicitly call -copy. And even -copy is implemented shallowly in existing
> classes (so copying
On Apr 19, 2010, at 7:46 AM, Kevin Walzer wrote:
> I'm trying to port some Carbon code that provides basic services menu
> integration to a Cocoa application. This code implements the basic Carbon
> event handlers for this functionality, cf:
>
> const EventTypeSpec carbonServiceEvents[] = {
>
On 4/20/10 5:52 PM, Peter Ammon wrote:
I'm not sure how to fix this. In my Carbon application, simply installing these
event handlers made the Services menu available. It's not clear to me why the
kEventServiceCopy event does not fire, but the kEventServiceGetTypes event
(necessary to determi
To not leave this hanging as some kind of view resize issue ...
I was moving the Save button programatically on a split view resize,
added the same to the Save As button and all is well
koko
On Apr 19, 2010, at 2:05 PM, Keary Suska wrote:
On Apr 19, 2010, at 10:02 AM, k...@highrolls.net
On 2010 Apr 19, at 08:56, Marco Masser wrote:
> I'm trying to implement a logging facility for an app ..., i.e. an
> NSTableView with varying row heights.
> I found three different approaches to calculating the height for a given
> width, but they all seem to be very performance-hungry:
> 1) (
On Apr 20, 2010, at 11:22 AM, olivier destrebecq wrote:
> Just to clarify, when i say save, i mean call save: on the context and write
> it to disk. Which the documentation state that you don't have to call save:
> to be able to query for objects and that modified object will be found.
Yes. Ever
On 2010 Apr 19, at 08:56, Marco Masser wrote:
I'm trying to implement a logging facility for an app ..., i.e. an
NSTableView with varying row heights.
I found three different approaches to calculating the height for a
given width, but they all seem to be very performance-hungry:
1) (my favor
Folks;
Subclassed NSObject now getting compiler warnings - don't understand why?
@interface ABC : NSObject {
}
@end
@implementation ABC
+ (void)initialize
{
...
keys = [NSArray ..];
[self setKeys:keys triggerChangeNotificationsForDependentKey:@"xyz"];
...
}
@end
I'm seeing compiler
On 2010 Apr 20, at 17:03, Jens Alfke wrote:
> I wouldn't do it this way (and I speak from past experience, having tried to
> do this once). You're using NSTableView for something it's not good at —
> updating layout on the fly as the width changes
OK, the -tableView:heightOfRow: delegate metho
On 21/04/2010, at 11:48 AM, Steve Cronin wrote:
> I'm seeing compiler warnings -> : warning: 'ABC' may not respond to
> '+setKeys:triggerChangeNotificationsForDependentKey:'
>
> What have I overlooked?
As a method that has been deprecated for a long time, perhaps it's no longer
being include
On Apr 20, 2010, at 9:48 PM, Steve Cronin wrote:
> Subclassed NSObject now getting compiler warnings - don't understand why?
>
> @interface ABC : NSObject {
> }
> @end
>
> @implementation ABC
> + (void)initialize
> {
> ...
> keys = [NSArray ..];
>[self setKeys:keys triggerChangeNotificat
Graham;
Directly from the current Apple docs:Key-Value Observing Programming Guide
No mention of deprecation…
Registering Dependent Keys
It’s common that the value of one property of a class is dependent on the value
of another property of the same class. Key-value observing provides a
lightwe
http://developer.apple.com/mac/library/documentation/cocoa/Conceptual/KeyValueObserving/Concepts/DependentKeys.html#//apple_ref/doc/uid/20002179-SW3
It's very deprecated, that documentation splits into Mac OS X 10.5 and
later and Mac OS X 10.4 and earlier.
http://developer.apple.com/mac/librar
From the NSKeyValueObserving Protocol reference:
Deprecated NSKeyValueObserving Methods
A method identified as deprecated has been superseded and may become
unsupported in the future.
Deprecated in Mac OS X v10.5 and later
setKeys:triggerChangeNotificationsForDependentKey:
Configures the recei
Other reasonable responses aside, what did you #import?
If you #import'd Cocoa/Cocoa.h, I would be surprised to see this.
If you brought in only NSObject.h, well, the declaration isn't in that file.
-Ken
On Tue, Apr 20, 2010 at 6:48 PM, Steve Cronin wrote:
> Folks;
>
> Subclassed NSObject now
I'm making a completely custom CoreAnimation-based view that plays an
audio media stored in a QT movie. However, I'm struck with an
implementation problem with indicating the current time in the movie.
Ideally, if QTMovie defined a currentTime property, I could use
bindings or a binding-lik
On Apr 19, 2010, at 8:56 AM, Marco Masser wrote:
> I'm trying to implement a logging facility for an app that should behave
> quite the same as OS X's Console.app in terms of displaying the log, i.e. an
> NSTableView with varying row heights. I got it working so far, but there are
> major draw
On Apr 19, 2010, at 1:21 PM, Philip Mobley wrote:
> I am fairly new to Cocoa, and so I have 2 questions I would appreciate some
> feedback. For a beginner, Cocoa suffers from the "too much info" problem and
> its often difficult to find the answers to seemly simple questions. I have
> had be
On Tue, Apr 20, 2010 at 8:09 PM, Chase Meadors wrote:
> Ideally, if QTMovie defined a currentTime property, I could use bindings or
> a binding-like design to handle the implementation of some time text &
> progress bar. However, QTMovie does not define it as a property. It appears
> setCurrentTim
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