On Nov 21, 2010, at 23:14, vincent habchi wrote:
> I intended to lock, fetch the entity, read the corresponding attribute, and
> unlock. That's all I've to do. On the main thread, I lock when I mutate the
> set, then unlock. That's all in one place, so it's not so difficult to figure
> out.
*T
Hi,I am working on a user interface. There is only one window in my application
with Back and Next buttons on it. On Next / Back button click my application
performs some task and the current view is swapped with another view in the
window. It works fine until somebody clicks Next (or Back) butt
Hi,
I'm writing a custom cell at the moment that's used in an outline view, it's
object value changes sometimes when the outline view doesn't expect it to
(which seems to be only on mouse down or end editing). Is there some way I can
force the outline view to send it's - (void)outlineView:(NSO
Tell us more. In what way does this "mess up the whole functionality" of the
application?
On 22 Nov 2010, at 09:54, Abhijeet Singh wrote:
> Hi,I am working on a user interface. There is only one window in my
> application with Back and Next buttons on it. On Next / Back button click my
> appli
>> I am encountering what I believe to be a spurious compiler warning. I wonder
>> whether this is a clue that I am doing something differently to how I
>> "should" do it. The problem comes if I define a protocol containing a
>> property and then define that property in a base class that does NO
Quincey:
I am a bit in a hurry, so I will answer quickly:
> I think maybe you have more design options here. For example, you can [in
> principle, I think] multithread with a single MOC without locks if you pass
> "ownership" of the MOC around between threads that make changes, so that
> owner
I have an NSTextView instance on OS X 10.6.3 that persistently logs the
following error
auto_refcount_underflow_error
Breaking on this reveals that the underflow occurs on thread 4 in
NSTextCheckingOperation.
I haven't seen this behaviour before with NSTextView so I am pretty certain
that a mis
On Nov 22, 2010, at 4:09 AM, Thomas Davie wrote:
> I'm writing a custom cell at the moment that's used in an outline view, it's
> object value changes sometimes when the outline view doesn't expect it to
> (which seems to be only on mouse down or end editing). Is there some way I
> can force t
Still trying to get my unit tests to build. I have an app project
which includes unit tests as well, and it depends on another dylib
project. They're all built with GCC_ENABLE_OBJC_GC as unsupported.
AFAIK, that's off. So everything ought to be turned of with respect to
GC. And according to the out
I think someone somewhere told me that if you create a MOC on the main thread,
there's some special runloop integration that is included, hence one of the
reasons it's important to not create one on the main thread and then pass it
around.
This is also important to keep in mind re: NSOperation,
According to the NSDate.h header:
- (id)dateByAddingTimeInterval:(NSTimeInterval)ti
AVAILABLE_MAC_OS_X_VERSION_10_5_AND_LATER;
Problem is when I run the following code on Mac OS X 10.5 on a
PowerMac G5, I get the result listed below.
#import
int main (int argc, const char * argv[]) {
NSAut
Hi Stephane.
I believe that the header is mistaken. According to the documentation,
dateByAddingTimeInterval: is "Available in Mac OS X v10.6 and later."
http://developer.apple.com/library/mac/documentation/Cocoa/Reference/Foundation/Classes/NSDate_Class/Reference/Reference.html#//apple_ref/occ/
I received a strange crash report from a user. User says it is not
reproducible. The way I read this, an infinite loop occurred in my
NSPersistentDocument subclass of
-canCloseDocumentWithDelegate:shouldCloseSelector:contextInfo: when my code
invoked super. Here is the crash report.
Thread
Hello again;
Well, I ran some debugging and I determined that ALL I needed was an initial
save. After that, all the core data stores are up-to-date, and faults result
in actual fetched data.
So, although kind of kludgy, I accepted the "Initial Save" behavior à la
Garageband, where the user is
On Nov 22, 2010, at 11:32 AM, Jerry Krinock wrote:
> How can there be an infinite loop invoking super in a method? Looks like it
> was re-invoking itself instead of invoking super.
Busted method or isa swizzling, maybe? Or a memory smasher that messed up the
dispatch table?
Regards,
Ken
___
On Mon, Nov 22, 2010 at 10:31 AM, Ken Thomases wrote:
> On Nov 22, 2010, at 11:32 AM, Jerry Krinock wrote:
>
>> How can there be an infinite loop invoking super in a method? Looks like it
>> was re-invoking itself instead of invoking super.
>
> Busted method or isa swizzling, maybe? Or a memory
Okay, I've verified that the page has loaded correctly (by running [webView
stringByEvaluatingJavaScriptFromString:@"document.body.innerHTML"] to output
the HTML of the loaded webview and then comparing it with the page loaded by
the Mac version to ensure that they're the same.)
I've come to th
On Nov 22, 2010, at 07:58, Hunter Hillegas wrote:
> I think someone somewhere told me that if you create a MOC on the main
> thread, there's some special runloop integration that is included, hence one
> of the reasons it's important to not create one on the main thread and then
> pass it aroun
Any suggestions on how to do this?
I simply want to use a bunch of controls, grouped via a custom view, in a
toolbar, such that the controls form a single toolbar item (for add/remove),
but the individual controls respond to mouse, draw, etc as normal.
Is this not possible?
thanks
Rua HM.
On
I'm working on an application that lets a user create 'documents' that will
live in the app's Documents directory. I'd like to distribute some sample
documents that would be treated the same as anything the user creates, but
haven't seen anything that suggests I can have XCode populate Document
As far as I know, this is the way to go. For instance, it's a common thing with
pre-populated Core Data databases that you are going to want to write to.
On Nov 22, 2010, at 3:16 PM, Phillip Mills wrote:
> It seems easy enough to stick them into the main bundle as resources and then
> copy them
On 23/11/2010, at 10:02 AM, Rua Haszard Morris wrote:
> Is this not possible?
Yes, it's possible. But your question is too open-ended. What have you tried,
what doesn't perform as expected?
--Graham
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When I call exitFullScreenModeWithOptions in a document based app, the menu
items are permanently dimmed out. I've tried making everything I can think
of firstResponder, but still dimmed out.
I tried a couple of alternate full screen methods, to see if I could get
around it, but I'm using a layer
What I have tried:
- new window NIB file
- add a toolbar
- add a custom view to the nib
- add controls to the custom view - a button, textfield, etc, tweak layout to
taste
- drag the custom view to the toolbar customise sheet (i.e. the allowed items
area)
- it looks like the view content will app
In working on some networking code, I've come across one test machine on our
local net that has extremely slow performance. Like orders of magnitude slower
than normal, on the same local network and using the same method (airport,
through a single router) as other machines that work just fine. T
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On 11/22/10 5:31 PM, Graham Cox wrote:
> In working on some networking code, I've come across one test machine
> on our local net that has extremely slow performance. Like orders of
> magnitude slower than normal, on the same local network and using th
Hi all,
I searched back through 2005 in the Cocoa Mailing List and didn't see any
requests for this.
We need all the points on a line / arc / path on the screen. We need to do hit
detection on stroked line, so we must know if the point is valid or not.
I thought using CGPathContainsPoint woul
Hi cocoa-dev,
I recently added an event tap to my program. Since doing that, there is a
strange behavior: when I kill my job (usually by making a change in Xcode
and pressing cmd-Enter, being prompted to kill the job, and selecting OK),
it will repeat back the last 10-20 keypresses as or after it
Perhaps the bandwidth has been limited using ipfw or a similar utility?
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It seems to me that a simpler way to do this would be:
- get the endpoints of the line
- figure out the slope of the line
- If the slope is <= 1, pull out the x coordinate of the test point. If the
slope is > 1, use the y coordinate of the test point
- using the algebra that you learned when you
Thanks for this suggestion, Ben. I ultimately went with a combination of this
suggestion (dynamically determining associativity) and Ronald's suggestion
(allowing the user to choose). My parser will start with the associativity
used by NSExpression, but provides a property to change it.
Thank
A while back I saw an app that had dials to adjust certain settings.
I could have sworn there was example code related to it. Anyway. I'm wondering
if any of you might know where I could look to find information on creating
dials for iPhone/iPad. I've been googling for a bit and all I can come u
Hi everyone,
I thought it'd be fun to write a mathematical expression evaluator, a la Graham
Cox's GCMathParser, but one that was extensible. So I dusted off my parsing
skills and wrote DDMathParser: https://github.com/davedelong/DDMathParser
It's an NSString => NSNumber expression evaluator,
Hit testing of lines/paths can basically be done in two ways:
a) mathematically, in that you determine whether a given point is close to a
given line by calculation
b) graphically, in that you draw the line into some image and test the pixel
drawn.
I've done quite a bit of work on this in the p
Ah, nice job! It's about time my crusty old code was updated but I'm just too
busy...
--Graham
On 23/11/2010, at 3:41 PM, Dave DeLong wrote:
> Hi everyone,
>
> I thought it'd be fun to write a mathematical expression evaluator, a la
> Graham Cox's GCMathParser, but one that was extensible.
On 23/11/2010, at 12:31 PM, Graham Cox wrote:
> In working on some networking code, I've come across one test machine on our
> local net that has extremely slow performance.
OK, looks like my Airport hardware is up the swanee.
Cut a long story short - none of the suggested diagnostics turned
Hi guys (and gals),
I'm new to the Objective-C arena and am still getting my bearings. Besides the
amazing set of libraries that Apple provides in the SDK, is there an open
source repository elsewhere of Objective-C libraries that can be used in
development? Specifically, I'm looking for a Sour
Trying to access this header to check its content and I don't find it in the
Foundation framework anymore for iOS. So, where is it now? All references I
find while "googling" it refers to pages that were updated in 2002 and 2003,
nothing recent.
Have I been sleeping all those years and missed i
Hey Dave,
I'm currently working on an app that loads expressions from plugin-like files,
and currently we're having the expressions be written in JavaScript syntax and
then using a WebView to evaluate the JavaScript. Obviously, this is less than
ideal. I'm wondering if you think that DDMathPars
On Nov 21, 2010, at 11:47 AM, vincent habchi wrote:
> briefly speaking, I have a Core Data Entity bearing a to-many relationship
> (therefore an NSSet * iVar). A dialog on the main thread can modify this set,
> while it may be simultaneously enumerated on a background GCD thread. I have
> ther
On Nov 22, 2010, at 1:08 PM, Quincey Morris wrote:
> On Nov 22, 2010, at 07:58, Hunter Hillegas wrote:
>
>> I think someone somewhere told me that if you create a MOC on the main
>> thread, there's some special runloop integration that is included, hence one
>> of the reasons it's important to
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