The docs that do exist concerning the way to map arbitrary objects
(such as ones that contain a 'name' attribute in my case) onto text
cells have to do with NSFormatter.
The latter is clearly how one converts 'simple' values from an object
form to a stringified form and v.v.
The problem with
Hi,
I'm writing an app that provides 'added value' to the Address Book
database. I'm having a problem with allowing the user to Revert to the
last saved state, if I discard my copies of the person and group
records and reload them from the Address Book database all is well
except that gro
So, I really think there must be a 'proper' way to get the editor to
pick up and return the value (name) I need editing from my cell's
model object, but I'm still searching for the white magic, having
dabbled in the darker sort.
OK, I think I finally (mostly) grokked it.
The NSCell sub
I am trying to play QCComposition in CAOpenGLLayer
According to the documentation of QCRenderer this should work fine.
but at final output nothing is displayed. Can anyone tell me where i
am going wrong...?
but at final output nothing is displayed. Can anyone tell me where i
am going wrong.
Hello,
I have added - (BOOL)validateToolbarItem:(NSToolbarItem *)toolbarItem
to my code, which will control whether a toolbar item is enabled or
not. However, I need a something similar to control whether a toolbar
item is visible or not.
How can I do this?
Thank you,
Ferhat
__
Hi,
i'm trying to execute a javascript function on the iPhone and get the
return value.
The function is simple:
return "hello";
I'm using a UIWebView and the -stringByEvaluatingJavaScriptFromString:
method but, while it works on os x, it doesn't on the iPhone.
How can i solve?
Thanks
Ma
On Jan 30, 2009, at 9:47 PM, Ken Thomases wrote:
On Jan 30, 2009, at 2:46 PM, Brian Slick wrote:
It starts to occur to me that I don't actually want an instance, I
want the real deal.
That statement is nonsensical. There is no "real deal". An
instance is real. It's not some pale refl
I have an Entity named ServiceItem which have a relationship to
another Entity named Transponder.
I am creating the ServiceItem by looping through a text file, scanning
for a service item pattern, and create the object with a newObject
message to an NSArrayController.
ServiceItem *serviceI
Just curious - are you using garbage collection? We recently determined
there is a bug in QCCompositionLayer with garbage collection that prevents
the composition from playing. QCCompositionLayer is a subclass of
CAOpenGLLayer. Maybe you hit the same bug?
On 1/31/09 10:09 AM, "cocoa-dev-req
I've been trying in vain to reproduce this bug on my computer (c2duo)
and my wife's computer (G4) to no avail. Also the output from -
com.apple.CoreData.SQLDebug 1 doesn't seem unusual at all. Maybe I'll
try some tests with using large photos and see it there's a
significant slowdown when
On Jan 30, 2009, at 10:39 AM, Ken Tozier wrote:
On Jan 30, 2009, at 10:52 AM, Keary Suska wrote:
When you call -bind: do you pass
NSCreatesSortDescriptorBindingOption NO?
I'm not calling bind, because the array controller and array are
created inside the same function, so it just seemed
On Jan 31, 2009, at 10:31 AM, Brian Slick wrote:
And I believe that I do understand the difference between objects
and pointers (I could be mistaken). The part I'm missing is what
this needs to look like in code. I'm afraid I need some handholding
here. If I knew what I needed to do in o
This may be something I should have noticed years ago, but I'm
surprised. I'm checking it with the list to see if it's normal or
something to worry about. I wasn't able to Google anything on-point.
SDK is 10.4u, target 10.3, operating environment is 10.5.6.
I have an NSTextField bound throug
On Jan 30, 2009, at 12:46PM, Brian Slick wrote:
It starts to occur to me that I don't actually want an instance, I
want the real deal.
On Jan 31, 2009, at 9:31AM, Brian Slick wrote:
It may be a nonsensical statement here (good to know), but in the 3D
CAD world that I'm used to, which I hav
On Jan 30, 2009, at 8:31 PM, jurin...@eecs.utk.edu wrote:
> I am developing a computationally intense application which I need to
> multi-process to take advantage of the 8 cpu's on my new MacPro with
> dual
> quads. I am using Leopard 10.5 OS.
>> Your machine has two CPU's, not eight.
Really??
Core != CPU.
Your machine has 8 cores, but 2 CPUs (since it has 4 cores per CPU)
Dave
On Jan 31, 2009, at 1:19 PM, jurin...@eecs.utk.edu wrote:
On Jan 30, 2009, at 8:31 PM, jurin...@eecs.utk.edu wrote:
I am developing a computationally intense application which I need to
multi-process to ta
On Jan 31, 2009, at 1:19 PM, Keary Suska wrote:
You don't have a binding between the table view and the array
controller?
Yes, sorry, misread your post. I had been binding with "options: nil"
but when I passed in an options dict with
NSCreatesSortDescriptorBindingOption , it worked perfe
Hi all,
I was looking for a way to define Objective-C classes at runtime...
specifically to be able to supply class definitions when a Nib file is
loaded. This search soon led me to objc_setClassHandler, but that's
listed as deprecated without replacement here: http://developer.apple.com/d
I have a computationally intensive modeling application which I NEED to
multi-process, I am trying to avoid low level calls to pthread and tcb
block.
In order to get my GUI running I had to create a NSOperationQueue and run
my big method via a NSInvocationOperation.
Previous post indicates that
SDK 10.4, target 10.3, environment 10.5.6
In the course of startup, my application creates one NSTimer and
conducts one transaction through the Web Services Core framework
(culminating in WSMethodInvocationScheduleWithRunLoop).
NSZombieEnabled is YES.
When the scheduled invocation returns
hi Marco,
are you waiting for WebView to report load finished before calling
javascript?
e.g. see example snippet (loads Google api and calls it):
#import
@class UIWebView;
@interface WebViewController : UIViewController {}
@property (nonatomic, readonly) UIWebView *webView;
@end
#import "W
On many applications, when you enter in a serial number, there are several text
fields in a row, and as the user enters in the serial number the cursor
automatically jumps to the next text field at the appropriate time.
I am assuming that this is a long string being displayed across several text
I have a bullet-proof scientific app I developed using cocoa. I just
purchased a new MacPro with the dual quad processors.
Earlier posts attempting to determine MAXIMUM theoretical speedup have
gotten bogged down with semantic differencea between a corea and a CPUa.
Having done EXTENSIVE multi-p
At the risk of stating the obvious: it seems like your limiting factor
in speedup will depend a lot more on your algorithm design than
NSInvocationQueue, the number of cores/processors, etc.
In other words, this isn't really an Apple-specific question. It's a
matter of parallel algorithm de
On Sat, Jan 31, 2009 at 3:21 PM, Dave DeLong wrote:
> Core != CPU.
>
> Your machine has 8 cores, but 2 CPUs (since it has 4 cores per CPU)
This is one of those things that's true but mostly pointless. The
question for which the answer is "2" here is really not a useful
question. For nearly all pu
hi Marco,
I'm not John Resig (http://ejohn.org/) but I would not assume that
"return o" will actually evaluate to javascript object/function call,
I would rather script:
NSString *scriptCode = @"\"Hello\"";
or:
NSString *scriptCode = @"(function(){return \"hello\";})();";
but I would also fir
Can anyone tell me if the maximum speedup using parallel programming on
multicore processors is BOUNDED by:
(A) number of processers (as on a single core processor).
(B) number of processors X number cores / processor.
If each processor runs numCore threads SIMULTANEOUSLY the answer would be
(B)
On Sat, Jan 31, 2009 at 3:36 PM, Andrew Thompson wrote:
> Hi all,
>
> I was looking for a way to define Objective-C classes at runtime...
> specifically to be able to supply class definitions when a Nib file is
> loaded. This search soon led me to objc_setClassHandler, but that's listed
> as depr
On Sat, Jan 31, 2009 at 3:45 PM, Fritz Anderson wrote:
> SDK 10.4, target 10.3, environment 10.5.6
>
> In the course of startup, my application creates one NSTimer and conducts
> one transaction through the Web Services Core framework (culminating in
> WSMethodInvocationScheduleWithRunLoop).
>
> N
On Sat, Jan 31, 2009 at 5:04 PM, wrote:
> I have a bullet-proof scientific app I developed using cocoa. I just
> purchased a new MacPro with the dual quad processors.
>
> Earlier posts attempting to determine MAXIMUM theoretical speedup have
> gotten bogged down with semantic differencea between
On 31 Jan 2009, at 3:19 PM, John Murphy wrote:
On many applications, when you enter in a serial number, there are
several text fields in a row, and as the user enters in the serial
number the cursor automatically jumps to the next text field at the
appropriate time.
I am assuming that this
On Jan 31, 2009, at 2:48 PM, jurin...@eecs.utk.edu wrote:
Can anyone tell me if the maximum speedup using parallel programming
on
multicore processors is BOUNDED by:
(A) number of processers (as on a single core processor).
(B) number of processors X number cores / processor.
If each process
On Jan 31, 2009, at 2:04 PM, jurin...@eecs.utk.edu wrote:
There IS a know bug with the NSInvocationQueue method on intels using
10.5.6 which I have read will be fixed on 10.6.
Please do not say things like this without citing a specific source.
Otherwise you are spreading rumors.
In gener
Just as an experiment, learning about Core Animation, I tried using the
implicit animator proxy to make a picture (an image well, "iw") drop and
tumble to the bottom of the window. So I want it to move ("frameOrigin") and
turn over ("frameRotation") simultaneously. To do that, I tried making an
ani
Thanks... I think I'm with you... kinda of.
So, let's say for the sake of argument I have some NSView subclass
implemented in Java: MyView.
In interface builder I drag in a custom view and I set its type to
MyView by typing in the name of this class, which doesn't exist as an
Objective C cl
On 31 Jan 09, at 15:11, Chris Hanson wrote:
On Jan 31, 2009, at 2:04 PM, jurin...@eecs.utk.edu wrote:
There IS a know bug with the NSInvocationQueue method on intels using
10.5.6 which I have read will be fixed on 10.6.
Please do not say things like this without citing a specific
source. Ot
On Jan 31, 2009, at 5:57 PM, cocoa-dev-requ...@lists.apple.com wrote:
Can anyone tell me if the maximum speedup using parallel programming
on
multicore processors is BOUNDED by:
(A) number of processers (as on a single core processor).
(B) number of processors X number cores / processor.
I
On 2009 Jan 31, at 8:07, Ferhat Ayaz wrote:
I need ... to control whether a toolbar item is visible or not.
How can I do this?
I don't think you can do that, and it might look kind of weird.
Use -[NSToolbar -removeItemAtIndex:] to remove the item. Retain it if
desired and then later use
On 2009 Jan 31, at 8:33, Ivan C Myrvold wrote:
But later on, the transponder relationship have been set to nil, and
I don't know why. There is probably something missing in my core
data code.
Or, something that should not be in your code that is in your code
Do anyone know what I am miss
I am attempting to multi-process an cocoa application I developed last
year. I have a MacPro with dual-quads, using xcode 3.1.
Trying to use openMP to concurrently run a loop via the "#pragma omp for"
command (yes I have taken care of ALL necessary setup to ensure entire
loop can be run concurren
All else aside, yes you can do this in Cocoa and/or Quartz.
Here are a couple different ways. For instruction's sake, here's it done
with a compositing operation, NSCompositeDestinationIn. Result color =
what's already in the context but with additional alpha taken from the new
drawing.
- (void)
The dots show in the cell's "highlighted" state. If you send,
[cell setHighlighted: YES];
then you'll get dots... until it gets clicked on, then it
automatically un-highlights itself.
The solution is thus to subclass NSLevelIndicatorCell and override
isHighlighted to always return YE
John Murphy (johncmurp...@yahoo.com) on 2009-01-31 4:19 PM said:
>On many applications, when you enter in a serial number, there are
>several text fields in a row, and as the user enters in the serial
>number the cursor automatically jumps to the next text field at the
>appropriate time.
>I am ass
I have an NSTextField that is bound to a date in a Core Data program.
The text field has an NSDateFormatter attached to it. All connections
are set up using IB. The odd thing is that the user needs to enter
the date into the text field twice for the text field to correctly
update to t
I have a somewhat complex problem I am hoping the list can help me with.
Ultimately, what I am trying to do is grant my application rights to use the
Accessibility API without forcing users to turn on ³Enable access for
assistive devices². My application uses AppleScripts (primarily calling
System
Hello Cocoa developers!
This is my formal announcement of the release of version 1.0 of my
Objective-C library wrapper around the Drop.io API, which I have
dubbed "DropKit".
Drop.io is an easy to use, online file sharing service that provides
users with a simple and private way to share i
Easily reproduced doesn't always translate into guaranteed to occur.
In my experience, using a single queue in your application is a
sufficient safeguard as no system framework I've encountered causes an
issue. That isn't to say that the API is without quirks but they can
usually be adjus
Are you compiling with the -fopenmp flag?
-rob.
On Jan 31, 2009, at 8:30 PM, jurin...@eecs.utk.edu wrote:
I am attempting to multi-process an cocoa application I developed last
year. I have a MacPro with dual-quads, using xcode 3.1.
Trying to use openMP to concurrently run a loop via the "#p
Greetings,
CocoaHeads is an international Mac programmer's group. Meetings are
free and open to the public. We specialize in Cocoa, but everything
Mac programming related is welcome.
Upcoming meetings:
Canada
Ottawa/Gatineau- Thursday, December 11, 2008 19:00.
Germany
Aachen- Thursday, Feb
On Sat, Jan 31, 2009 at 6:33 PM, Andrew Thompson wrote:
> Thanks... I think I'm with you... kinda of.
>
> So, let's say for the sake of argument I have some NSView subclass
> implemented in Java: MyView.
> In interface builder I drag in a custom view and I set its type to MyView by
> typing in the
On Sat, Jan 31, 2009 at 10:15 PM, Robert Marini wrote:
> Easily reproduced doesn't always translate into guaranteed to occur. In my
> experience, using a single queue in your application is a sufficient
> safeguard as no system framework I've encountered causes an issue. That
> isn't to say that
On 31 Jan 09, at 19:15, Robert Marini wrote:
Easily reproduced doesn't always translate into guaranteed to
occur. In my experience, using a single queue in your application
is a sufficient safeguard as no system framework I've encountered
causes an issue. That isn't to say that the API is
When inside of -[NSView drawRect:], what's the difference between
- (void)drawRect:(NSRect)rect;
{
if ([self needsToDrawRect:someRect])
}
... and ...
- (void)drawRect:(NSRect)rect;
{
if (NSIntersectsRect(rect, someRect))
}
... ?
AFAICT from the
If your original algorithm is scalar, you can get upto 4x increase by
moving to SIMD (SSE2/3) if your algorithms can be paralleled. Add
that to the 7 extra cores and you can get upto 32x speed up. In the
real world you're very (very) unlikely to reach max throughput because
of data depend
I'm overriding -[NSTableView highlightSelectionInClipRect:] because I
don't want all the columns of the selected row to be highlighted.
Works fine except +[NSColor highlightColor] returns white instead of
actual highlight color I have set in System Preferences > Appearance,
which is green.
On Sun, Feb 1, 2009 at 1:11 AM, Jerry Krinock wrote:
> I'm overriding -[NSTableView highlightSelectionInClipRect:] because I don't
> want all the columns of the selected row to be highlighted. Works fine
> except +[NSColor highlightColor] returns white instead of actual highlight
> color I have s
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