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,
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
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
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.
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
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:
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
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
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
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
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?
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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,
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.
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
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
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
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.
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
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
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
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
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
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
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
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
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
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
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
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]
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
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
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
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
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
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
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
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
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...
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
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
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
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
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
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,
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
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
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
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
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
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
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
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
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
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
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
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
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?
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
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
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
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
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:
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
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
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
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
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
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
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
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
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
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
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
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
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
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