date:20081016

It has something to do with Class1 being a subclass of
NSObjectController. This code works for me with the same IB
connections (sorry, had to reformat; it's my compulsion):

#import Cocoa/Cocoa.h

@interface Class1 : NSObject
{
BOOL canLink;
}

- (BOOL) canLink;

- (IBAction) change:(id)v;

@end


#import Class1.h

@implementation Class1

- (BOOL) canLink
{
NSLog( @%s %d nc:%p, _cmd, canLink, self );
return canLink;
}


- (IBAction) change:(id)v
{
[self willChangeValueForKey:@canLink];
canLink = !canLink;
[self didChangeValueForKey:@canLink];

NSLog( @%s %d, _cmd, canLink );
}

- (void) setCanLink:(BOOL)aValue
{
canLink = aValue;
}

@end


#import Cocoa/Cocoa.h

@class Class1;

@interface Class2 : NSObject
{
IBOutlet Class1 *class1;
}

- (BOOL) myMethod;

@end


#import Class2.h
#import Class1.h

@implementation Class2

+ (NSSet*) keyPathsForValuesAffectingMyMethod
{
NSLog( @%s, _cmd );
return [NSSet setWithObject:@class1.canLink];
}

#pragma mark -

- (void) awakeFromNib
{
NSLog( @%s class1:%p, _cmd, class1 );

[self addObserver:self
   forKeyPath:@myMethod
  options:NSKeyValueObservingOptionNew
  context:[Class2 class]];
}

- (void) observeValueForKeyPath:(NSString*)keyPath
   ofObject:(id)object
 change:(NSDictionary*)change
context:(void *)context
{
NSLog( @%s %@, _cmd, keyPath );
if (context == [Class2 class])
{
if ([keyPath isEqualToString:@myMethod])
{
NSLog( @newvalue - myMethod:%d, [self myMethod] );
}
}
else
{
[super observeValueForKeyPath:keyPath ofObject:object
change:change context:context];
}
}

- (BOOL) myMethod
{
return [class1 canLink];
}

@end



On Thu, Oct 16, 2008 at 1:18 AM, Chris Idou [EMAIL PROTECTED] wrote:
 That thought had occured to me, but making it readwrite doesn't seem to help. 
 Cocoa NIB loading doesn't seem to call accessors, it seems to access them 
 more directly. I even tried this:


 -(Class1 *)class1 {
return class1;
 }

 -(void)setClass1:(Class1 *)v {
NSLog(@setClass1: %@, v);
[self willChangeValueForKey:@class1];
class1 = v;
[self didChangeValueForKey:@class1];
 }

 But they don't get called.

 I even tried adding to awakeFromNIB:

id old = [self class1];
[self setClass1:nil];
[self setClass1:old];

 To try and force the issue, but to no avail.

 Someone has observed that my code works when called from main() and bypassing 
 IB. But it still doesn't work when loaded from a NIB!


 --- On Wed, 10/15/08, Quincey Morris [EMAIL PROTECTED] wrote:

 From: Quincey 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 Class2 : NSObject {
 IBOutlet Class1 *class1;
 
 
  }
  @property(readonly) Class1 *class1;
  -(BOOL)myMethod;
  @end
 
  #import Class2.h
  #import Class1.h
 
  @implementation Class2
 
  @synthesize class1;
 
  ...
 
  - (void)awakeFromNib {
 [self addObserver:self
forKeyPath:@myMethod
   options:NSKeyValueObservingOptionNew
   context: [Class2 class]];
 
  }
 
 
  + (NSSet *)keyPathsForValuesAffectingMyMethod {
 
 NSLog(@keyPathsForValuesAffectingMyMethod);
 return [NSSet
 setWithObject:@class1.canLink];
  }

 I think your problem is that Class2 isn't properly KVO
 compliant for
 the key class1. Consider what happens when your
 nib is loaded. At
 some point, the nib loader needs to set class1
 to its correct value.
 Since the property is readonly and synthesized, there's
 no setter
 method, so the instance variable is changed directly.
 (I'm going from
 memory here, but I believe that's what documented to
 happen.) That
 presumably fails to trigger any KVO notifications, and your

 keyPathsForValuesAffectingMyMethod is not
 consulted.

 Try this:

  ...

  @interface Class2 ()

  @property(readwrite) Class1 *class1;
  @end

 

  @implementation Class2
 
  @synthesize class1;
  

 If my theory is correct, that should cause the outlet to be
 set via a
 KVC-compliant setter, and the keypath dependency should
 start working.


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Re: tearing my hair, ok here is a compilable example.

On Thu, Oct 16, 2008 at 2:03 AM, Stephen J. Butler
[EMAIL PROTECTED] wrote:
 - (void) setCanLink:(BOOL)aValue
 {
canLink = aValue;
 }

Opps. You can remove that. Still works. I'm assuming
NSObjectController overrides some of the KVC/KVO methods for its own
purposes, and it breaks observing subclass properties.
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AW: Dial with Bluetooth

2008-10-16 Thread Thomas Bartelmess

Could you maybe provide me some sample code for this. I'm really interested in 
using Bluetooth, it's still a 'research Project' for me. I have just getting 
started to understand Bluetooth.

Thanks a lot

Thomas



- Ursprüngliche Mail 
Von: Nick Zitzmann [EMAIL PROTECTED]
An: Thomas Bartelmess [EMAIL PROTECTED]
CC: cocoa-dev@lists.apple.com
Gesendet: Donnerstag, den 16. Oktober 2008, 08:15:29 Uhr
Betreff: Re: Dial with Bluetooth


On Oct 15, 2008, at 4:20 PM, Thomas Bartelmess wrote:

 I would like to know if anybody has some expirience with the  
 IOBluetooth Classes. Can you tell me how hard it is to Dial a number  
 on a Phone with Bluetooth. I'm new to Bluetooth (I don't know very  
 much about it) so please don't be too rude.


It isn't that hard, but it only works with the small handful of phones  
that support RFCOMM. Apple most certainly does not support RFCOMM on  
the **; I've only seen some Nokia and Sony Ericsson phones support  
it.

Nick Zitzmann
http://www.chronosnet.com/



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Project path

2008-10-16 Thread Quentin Arnault

Hi all,

I'm working on a iPhone code generator and I encounter some problems
especially with the xcodeproj file.Presently, I did not find a way to
generate the resource part of the project.pbxproj file. Do you know where I
could find some hints to do this ?

Best regards,
Quentin ARNAULT
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Re: custom nstextview

2008-10-16 Thread Matteo Manferdini

Hi Chris,
I don't know exactly how it's done, but Smultron does that and it's open
source. Maybe you can find what you are looking for digging in its code.
Bye.

On Mon, Oct 13, 2008 at 4:41 AM, chris struhar [EMAIL PROTECTED] wrote:

 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 is that I need
 to add some ruler to the view but I don't know where to go beyond
 that.

 Thanks.
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NSTextView user input bug in 10.4

2008-10-16 Thread Michael LaMorte


Hi all,

I'm developing an app with Xcode 3.1 on Leopard. I have a bunch of  
NSTextViews embedded in NSScrollViews (we'll call these input  
areas), which are embedded in NSScrollViews, which are in NSTabViews.  
The content of the NSTextViews is bound to CoreData values. The app  
compiles and runs fine under 10.5.x, but under 10.4 the NSTextViews  
are broken:


1) Once the user starts typing in an Input Area, the Input Area never  
resigns keyView status to another Input Area in their common  
NSScrollView super view.


2) When the user types, the behavior is odd... for example, if the  
user types asdf, the Input Area will type a, then as, then  
asd, then asdf, so the complete line of text is aasasdasdf. The  
text is never committed to the CoreData record.


I've subclassed the NSScrollView and NSTextView that make up the Input  
Area, but they are working fine in other areas of the application  
where they're not inside NSScrollView and NSTabView super views.


I have 10.4 SDK selected as a compile option, and 10.4 compatibility  
selected in Interface Builder.


TIA,
- Mike

---
Michael A. LaMorte

  In matters of style, swim with the current;
   In matters of principle, stand like a rock
 -Thomas Jefferson



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Length of a filename

2008-10-16 Thread Gerriet M. Denkmann



How can I check the appositeness of a filename?

This will not work:
if ( [potentialPath length]  255 )  ... error: filename too long
because HFS+ uses some decomposed form.

This might work:
if ( [[ NSString stringWithUTF8String: [potentialPath  
fileSystemRepresentation] ] length]  255 )  ...

but looks kind of convoluted and inefficient.

There are two methods in NSString:
decomposedStringWithCanonicalMapping
decomposedStringWithCompatibilityMapping
but the documentation does not say which (if any) should be used to  
convert a potentialPath into a form used in HFS+.


Kind regards,

Gerriet.

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Re: NSTextfield in tableColumn changing color slow

2008-10-16 Thread Corbin Dunn


Hi Steven,

On Oct 16, 2008, at 2:03 AM, Steven Hamilton wrote:


Hi Folks,
I have a core data bound tableColumn that displays a currency  
balance. My NSManagedObject is a custom class that calculates the  
balance from a @sum of related transactions and returns the balance.  
The binding then displays this balance in the tableColumn. So far so  
good. This works fast.


I've implemented the delegate method below to query the NSTextfield  
value and change the color to red if it's less than 0. However, when  
I implement this and scroll the table its slow and jerky. Clearly  
I'm going about this the wrong way. How is it best to change the  
color based on the value of the cell?


- (void)tableView:(NSTableView *)tableView willDisplayCell:(id)cell  
forTableColumn:(NSTableColumn *)tableColumn row:(NSInteger)row;


This is a good way to do it. Do you have a sample to show the slow down?

And/or what does your code do in this method?

-corbin
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Re: Length of a filename

2008-10-16 Thread Jean-Daniel Dupas



Le 16 oct. 08 à 11:31, Gerriet M. Denkmann a écrit :



How can I check the appositeness of a filename?

This will not work:
if ( [potentialPath length]  255 )  ... error: filename too long
because HFS+ uses some decomposed form.

This might work:
if ( [[ NSString stringWithUTF8String: [potentialPath  
fileSystemRepresentation] ] length]  255 )  ...

but looks kind of convoluted and inefficient.

There are two methods in NSString:
decomposedStringWithCanonicalMapping
decomposedStringWithCompatibilityMapping
but the documentation does not say which (if any) should be used to  
convert a potentialPath into a form used in HFS+.


Kind regards,

Gerriet.


HFS use a special Unicode implementation with some bug or limitation  
that remains for compatibility.  That's why you should never try to


I think you can use this undocumented but public function to try to  
convert your string and check the result code:


OSStatus FSGetHFSUniStrFromString(CFStringRef str, HFSUniStr255  
*uniStr);


As NSString and CFString are toolfree bridged, just pass your string  
as first argument.


But it's probably not a good idea to check to path name youself except  
if you are sure your user target an HFS+ volume.







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Re: Length of a filename

2008-10-16 Thread Michael Ash

On Thu, Oct 16, 2008 at 5:31 AM, Gerriet M. Denkmann
[EMAIL PROTECTED] wrote:

 How can I check the appositeness of a filename?

 This will not work:
 if ( [potentialPath length]  255 )  ... error: filename too long
 because HFS+ uses some decomposed form.

 This might work:
 if ( [[ NSString stringWithUTF8String: [potentialPath
 fileSystemRepresentation] ] length]  255 )  ...
 but looks kind of convoluted and inefficient.

 There are two methods in NSString:
decomposedStringWithCanonicalMapping
decomposedStringWithCompatibilityMapping
 but the documentation does not say which (if any) should be used to convert
 a potentialPath into a form used in HFS+.

It is impossible to preflight a filename in the general case, because
HFS+ is not the only filesystem in the universe. You could be writing
to FAT32 or ZFS or HFS or something else, all of which have different
rules for what's allowed and what's not. Even worse, you could be
writing to a network filesystem that is backed by anything, and you
can't even find out what that is.

If you need to know whether a filename is legal, the only sure way is
to try it and see if it works. If you need to preflight before you do
some real work, the only way I've found is to write out a dummy file
first and see if that succeeds.

Mike
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NSTextfield in tableColumn changing color slow

2008-10-16 Thread Steven Hamilton


Hi Folks,
I have a core data bound tableColumn that displays a currency balance.  
My NSManagedObject is a custom class that calculates the balance from  
a @sum of related transactions and returns the balance. The binding  
then displays this balance in the tableColumn. So far so good. This  
works fast.


I've implemented the delegate method below to query the NSTextfield  
value and change the color to red if it's less than 0. However, when I  
implement this and scroll the table its slow and jerky. Clearly I'm  
going about this the wrong way. How is it best to change the color  
based on the value of the cell?


- (void)tableView:(NSTableView *)tableView willDisplayCell:(id)cell  
forTableColumn:(NSTableColumn *)tableColumn row:(NSInteger)row;


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Re: AW: Dial with Bluetooth

2008-10-16 Thread Nick Zitzmann



On Oct 16, 2008, at 12:22 AM, Thomas Bartelmess wrote:

thanks for you answer. But there is Software that can dial on the  
**. Is this RFCOMM too or is there an other way to trigger an  
call with Bluetooth?



If there is, I'd like to know what method it's using. Normally you do  
phone dialing by connecting to a Bluetooth serial port (RFCOMM) and  
then sending an ATDT command, but I don't think the ** supports  
that.


Nick Zitzmann
http://www.chronosnet.com/

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Re: table bindings, value transformer per row?

2008-10-16 Thread Sean McBride

On 10/15/08 6:35 PM, [EMAIL PROTECTED] said:

i've got a bound table view. is it possible to use a different value
transformer based on which row of the table is being
displayed/edited? and if so, how?

I don't think so.  You can use a different formatter in different
columns, but rows are expected to show the same data as other rows.

--

Sean McBride, B. Eng [EMAIL PROTECTED]
Rogue Researchwww.rogue-research.com
Mac Software Developer  Montréal, Québec, Canada


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Re: how to use the loginItem in OSX 10.3?

2008-10-16 Thread Chris Idou

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: Thursday, October 16, 2008, 2:27 AM
 hi, list,
  I have a task that a cmd-line utility should be
 launched when user
 login window on OSX 10.3.9. this cmd-line utility bind to a
 socket port and
 listen message from low-level server. I means that the
 cmd-utility will not
 quit until the user logout. acutally, I know I should use
 launchd method to
 implement this feature in 10.4 or later . but in OSX
 10.3.9, I have
 encountered some problems.
  At first, I planned to use login Items, add item in
 the
 loginwindow.plist in the user's directory. I can add
 the cmd-line utility to
 the login item list of current user when the user login
 window. but one
 terminal (console) popup every time. this is a big problem,
 so
 unsatisfied for me, I need it to run as a daemon.
 Second, i use the unrecommended way : add a plist file
 to the path:
 /etc/mach_init_per_user.d directory. but it seems not work.
 what should i do
 anything else?
  I am sorry that if i put this mail in a wrong list.
 Any comments will
 be appreciated. Thanks.

 Andrew
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Re: Project path

2008-10-16 Thread Quentin Arnault

Ho, sorry, it seems that I red too quickly the Apple piece of news
concerning NDA... So thank you for the help, i'll go check the xcode-users
archives.

Best regards,
Quentin ARNAULT

On Thu, Oct 16, 2008 at 12:59 PM, I. Savant [EMAIL PROTECTED]wrote:

 On Oct 16, 2008, at 5:24 AM, Quentin Arnault wrote:

  I'm working on a iPhone code generator and I encounter some problems
 especially with the xcodeproj file.Presently, I did not find a way to
 generate the resource part of the project.pbxproj file. Do you know where
 I
 could find some hints to do this ?



 1 - We're still not allowed to discuss iPhone development on this list
 until the new agreement is in place.
 2 - This appears to have nothing directly to do with iPhone development.
 :-)
 3 - This has nothing to do with Cocoa at all.
 4 - The best place to post questions about Xcode project templates is the
 xcode-users list.
 5 - You might even be able to find project file structure questions already
 answered in the xcode-users archives.

 --
 I.S.



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how to use the loginItem in OSX 10.3?

2008-10-16 Thread XiaoGang Li

hi, list,
 I have a task that a cmd-line utility should be launched when user
login window on OSX 10.3.9. this cmd-line utility bind to a socket port and
listen message from low-level server. I means that the cmd-utility will not
quit until the user logout. acutally, I know I should use launchd method to
implement this feature in 10.4 or later . but in OSX 10.3.9, I have
encountered some problems.
 At first, I planned to use login Items, add item in the
loginwindow.plist in the user's directory. I can add the cmd-line utility to
the login item list of current user when the user login window. but one
terminal (console) popup every time. this is a big problem, so
unsatisfied for me, I need it to run as a daemon.
Second, i use the unrecommended way : add a plist file to the path:
/etc/mach_init_per_user.d directory. but it seems not work. what should i do
anything else?
 I am sorry that if i put this mail in a wrong list. Any comments will
be appreciated. Thanks.

Andrew
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Re: tearing my hair, Do we agree it’s a bu g?

2008-10-16 Thread Chris Idou


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 PROTECTED]
 Subject: Re: tearing my hair, ok here is a compilable example.
 To: [EMAIL PROTECTED]
 Cc: cocoa-dev@lists.apple.com, Stephen J. Butler [EMAIL PROTECTED]
 Date: Thursday, October 16, 2008, 2:15 AM
 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.
 
 -- Chris



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How to get icon of special folder (like /Applications or /Library)?

2008-10-16 Thread Alexander Shmelev


Hello,

On Mac OS X many special folders have their own personal icons. For  
example /Applications have capital letter A on generic folder icon.


I have some path which leads to some special folder. How can I  
determine what icon this folder have?

Path is stored in NSString.
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Re: NSComboBox select change

2008-10-16 Thread I. Savant


On Oct 16, 2008, at 2:07 AM, Joseph Yu wrote:


When the combobox change the selection,I want to do something.

How to do this?

I didn't see any callback function.


  Have you searched/read the documentation? This is considered Cocoa  
Fundamentals:


http://developer.apple.com/documentation/Cocoa/Conceptual/CocoaFundamentals/CommunicatingWithObjects/chapter_6_section_5.html

--
I.S.


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iPhone Development Mailing List

2008-10-16 Thread Stefan Arentz

It's been two weeks and Apple moves with its usual slowness and
secrecy. It's probably going to take a while longer. And then some
more. And then we wait a couple of weeks for the official mailing
list. In the meantime, outside of the Apple domain, everybody is
happily openly discussing iPhone development and even books are being
released with the consent of Apple.

http://pragdave.blogs.pragprog.com/pragdave/2008/10/the-iphone-book.html

I admit that I am an impatient man and I have a bunch of Cocoa-Touch
and iPhone development things that I would like to discuss within a
larger group. Rather last week then next month.

So, maybe it is time we take action and simply setup a google group or
mailing list. I'll be more than happy to host and manage the latter.

I also see there is a http://groups.google.com/group/iphone-dev but
there are no subscribers yet. Maybe the iPhone developer among us can
simply move there. It would be a good statement. And a lot of fun to
FINALLY start discussing this openly and to build up some developer
relations.

Anyone up for that? Let's do it!

 S.
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Re: tearing my hair, ok here is a compilable example.

2008-10-16 Thread Chris Suter

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.

-- Chris
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Re: Project path

2008-10-16 Thread I. Savant


On Oct 16, 2008, at 5:24 AM, Quentin Arnault wrote:


I'm working on a iPhone code generator and I encounter some problems
especially with the xcodeproj file.Presently, I did not find a way to
generate the resource part of the project.pbxproj file. Do you know  
where I

could find some hints to do this ?



1 - We're still not allowed to discuss iPhone development on this list  
until the new agreement is in place.
2 - This appears to have nothing directly to do with iPhone  
development. :-)

3 - This has nothing to do with Cocoa at all.
4 - The best place to post questions about Xcode project templates is  
the xcode-users list.
5 - You might even be able to find project file structure questions  
already answered in the xcode-users archives.


--
I.S.


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How can I launch Preview.app from my application for collection of images

2008-10-16 Thread Alexander Shmelev


Hello,

I have set of images, how can i open Preview.app from my Cocoa  
application to display them all?


BR, Alexander.
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Re: How can I launch Preview.app from my application for collection of images

2008-10-16 Thread Fritz Anderson


On 16 Oct 2008, at 10:48 AM, Alexander Shmelev wrote:

I have set of images, how can i open Preview.app from my Cocoa  
application to display them all?


See -[NSWorkspace openFile:withApplication:]. If your images are in  
memory only, you'll have to save them in temporary files. I don't know  
of a way to make Preview display an image that isn't in a file.


Consider -[NSWorkspace openFile:], which opens the file in the user's  
_preferred_ application for viewing the file. The user may have a good  
reason to prefer something other than Preview.


— F

--
Fritz Anderson -- Xcode 3 Unleashed: Now in its second printing -- http://x3u.manoverboard.org/ 



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Re: tearing my hair, ok here is a compilable example.

On Thu, Oct 16, 2008 at 3:59 AM, Chris Idou [EMAIL PROTECTED] wrote:
 I'm attaching the project with two NSObjects. Still doesn't work for me.

You forgot to connect the class1 outlet to your Class1 instance in IB.
Once I did that, it worked.
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Re: how to use the loginItem in OSX 10.3?

2008-10-16 Thread David Duncan

On Oct 16, 2008, at 2:27 AM, XiaoGang Li wrote:

hi, list,
I have a task that a cmd-line utility should be launched when user
login window on OSX 10.3.9. this cmd-line utility bind to a socket
port and
listen message from low-level server. I means that the cmd-utility
will not
quit until the user logout. acutally, I know I should use launchd
method to

implement this feature in 10.4 or later . but in OSX 10.3.9, I have
encountered some problems.
At first, I planned to use login Items, add item in the
loginwindow.plist in the user's directory. I can add the cmd-line
utility to
the login item list of current user when the user login window. but
one

terminal (console) popup every time. this is a big problem, so
unsatisfied for me, I need it to run as a daemon.
Second, i use the unrecommended way : add a plist file to the path:
/etc/mach_init_per_user.d directory. but it seems not work. what
should i do

anything else?
I am sorry that if i put this mail in a wrong list. Any comments
will

be appreciated. Thanks.

If I'm understanding you correctly, you want to launch a daemon at
login time on 10.3.9?

First, check out TN2083 Daemons and Agents http://developer.apple.com/technotes/tn2005/tn2083.html

If you have further questions, I would recommend either asking on
Darwin-Dev or submitting a tech support incident to [EMAIL PROTECTED]

--
David Duncan
Apple DTS Animation and Printing

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Resize the NSCollectionViewItem's view

2008-10-16 Thread gMail.com

Hi,
I have to programmatically resize the view of an NSCollectionViewItem,
(which is the record's view). I tried several ways, unsuccessfully.

in the awakeFromNib of the NSViewController subclass
--
NSCollectionView*collView = [[self oCollectionVI] collectionView];
[collView setMaxItemSize:NSMakeSize(480, 200)];
[collView setMinItemSize:NSMakeSize(480, 200)];

resizing directly the view
--
recView = [[viewController oCollectionVI] view];
newRecFrame = [recView frame];
recFrame.size.height = 100;
[recView setFrame:recFrame];
[[viewContr oCollectionVI] setView:recView]; // trying to force reset

No luck with both.
It seems that the size remains the same as defined in the nib file.
Any idea?


Thanks
LL


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Re: iPhone Development Mailing List

2008-10-16 Thread Stefan Arentz

Quick update to my own message. I found two places that seems to be good:

The first one is a mailing list hosted by the friendly folks from NetNewsWire:

 http://www.ranchero.com/?comments=1postid=1997
 http://lists.ranchero.com/listinfo.cgi/iphonedev-ranchero.com

And the second is a forum, not my preferred way, but there is a lot of
good iPhone development discussion going on. Interestingly this is
hosted at ... Apple!

  http://discussions.apple.com/category.jspa?categoryID=164

 S.

On Thu, Oct 16, 2008 at 11:14 AM, Stefan Arentz [EMAIL PROTECTED] wrote:
 It's been two weeks and Apple moves with its usual slowness and
 secrecy. It's probably going to take a while longer. And then some
 more. And then we wait a couple of weeks for the official mailing
 list. In the meantime, outside of the Apple domain, everybody is
 happily openly discussing iPhone development and even books are being
 released with the consent of Apple.

 http://pragdave.blogs.pragprog.com/pragdave/2008/10/the-iphone-book.html

 I admit that I am an impatient man and I have a bunch of Cocoa-Touch
 and iPhone development things that I would like to discuss within a
 larger group. Rather last week then next month.

 So, maybe it is time we take action and simply setup a google group or
 mailing list. I'll be more than happy to host and manage the latter.

 I also see there is a http://groups.google.com/group/iphone-dev but
 there are no subscribers yet. Maybe the iPhone developer among us can
 simply move there. It would be a good statement. And a lot of fun to
 FINALLY start discussing this openly and to build up some developer
 relations.

 Anyone up for that? Let's do it!
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Re: How to get icon of special folder (like /Applications or /Library)?

2008-10-16 Thread Mike Abdullah


[[NSWorkspace sharedWorkspace] iconForFile:path]

On 16 Oct 2008, at 16:08, Alexander Shmelev wrote:


Hello,

On Mac OS X many special folders have their own personal icons. For  
example /Applications have capital letter A on generic folder  
icon.


I have some path which leads to some special folder. How can I  
determine what icon this folder have?

Path is stored in NSString.
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Faceless background app that uses NSAppleScript

2008-10-16 Thread Scott Ribe

I need to write an app whose purpose is to drive other apps, using
NSAppleScript. No UI is needed. But I'm unclear on what kind of environment
needs to be set up in order for NSAppleScript to work. I suspect it needs at
least NSRunLoop event processing; I wonder if it might also need an
NSApplication around.

Past use of NSAppleScript has revealed that it's somewhat quirky about
event handling, in that what looks like a blocking synchronous call
(executeAndReturnError), seems to allow the event loop to keep processing
while it's waiting for a response.

And if it's too much of a pain in the neck, I'll just live with what I
already know how to do easily: a GUI that consists of a status window and
a Quit menu item ;-)

-- 
Scott Ribe
[EMAIL PROTECTED]
http://www.killerbytes.com/
(303) 722-0567 voice


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Re: how to complete c/s app

2008-10-16 Thread Scott Ribe

What do you wish to do that SAMBA does not?

-- 
Scott Ribe
[EMAIL PROTECTED]
http://www.killerbytes.com/
(303) 722-0567 voice


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Re: Faceless background app that uses NSAppleScript

On Thu, Oct 16, 2008 at 12:15 PM, Scott Ribe [EMAIL PROTECTED] wrote:
 And if it's too much of a pain in the neck, I'll just live with what I
 already know how to do easily: a GUI that consists of a status window and
 a Quit menu item ;-)

Look into LSUIElement and LSBackgroundOnly. One of the two should do
what you want.

http://cocoadev.com/index.pl?LSUIElement
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Re: Faceless background app that uses NSAppleScript

2008-10-16 Thread Jason Coco



On Oct 16, 2008, at 13:15 , Scott Ribe wrote:


I need to write an app whose purpose is to drive other apps, using
NSAppleScript. No UI is needed. But I'm unclear on what kind of  
environment
needs to be set up in order for NSAppleScript to work. I suspect it  
needs at

least NSRunLoop event processing; I wonder if it might also need an
NSApplication around.

Past use of NSAppleScript has revealed that it's somewhat quirky  
about

event handling, in that what looks like a blocking synchronous call
(executeAndReturnError), seems to allow the event loop to keep  
processing

while it's waiting for a response.

And if it's too much of a pain in the neck, I'll just live with what I
already know how to do easily: a GUI that consists of a status  
window and

a Quit menu item ;-)


Add the LSUIElement key to the Info.plist and it will launch without a  
dock icon or a menu. You can then safely call
[NSApplication sharedApplication] from within your application to  
connect to the window server (so you can use AppKit and other
frameworks). Then just do [NSApp run] to start the run loop and the  
event loop and treat it like normal... no need to create a window  
(although you could load one if you

ever had a need to).

HTH, Jason

smime.p7s
Description: S/MIME cryptographic signature
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Re: Faceless background app that uses NSAppleScript

2008-10-16 Thread Scott Ribe

 Add the LSUIElement key to the Info.plist and it will launch without a
 dock icon or a menu.

Aha, it didn't click with me that the application could be a complete normal
Cocoa app and that specifying faceless in the plist would simply hide it.

I've done normal Cocoa apps. I've done UNIXy server daemons (with some CF
stuff). I was imagining having to combine the two in some way requiring
obscure initialization sequences.

Thanks.

-- 
Scott Ribe
[EMAIL PROTECTED]
http://www.killerbytes.com/
(303) 722-0567 voice


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Re: Faceless background app that uses NSAppleScript

2008-10-16 Thread jason . coco

Yeah, I have a user agent that works like this... Mostly it's controlled by 
launchd but sometimes it presents a window to the user so it needs AppKit 
services... Just remember to call

[NSApplication sharedApplication] before doing anything else :)

--Original Message--
From: Scott Ribe
To: Jason Coco
Cc: Cocoa-dev
Sent: Oct 16, 2008 13:28
Subject: Re: Faceless  background app that uses NSAppleScript

 Add the LSUIElement key to the Info.plist and it will launch without a
 dock icon or a menu.

Aha, it didn't click with me that the application could be a complete normal
Cocoa app and that specifying faceless in the plist would simply hide it.

I've done normal Cocoa apps. I've done UNIXy server daemons (with some CF
stuff). I was imagining having to combine the two in some way requiring
obscure initialization sequences.

Thanks.

-- 
Scott Ribe
[EMAIL PROTECTED]
http://www.killerbytes.com/
(303) 722-0567 voice

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Format Specifier Problem

2008-10-16 Thread Adil Saleem

Hi,

I am trying to create a string from a float. But i want only 3 digits after the 
decimal place. Here's my code. 

float a = 2.036;
NSString *str = [NSString stringWithFormat:@%3f,a];

But this does not seem to work. Everytime it creates the string it is 2.036000 
instead of 2.036

What should be the format specifier to do this ? 


Thank You


  
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Re: Format Specifier Problem

2008-10-16 Thread Jens Beuckenhauer


Hello,

I am trying to create a string from a float. But i want only 3  
digits after the decimal place. Here's my code.


float a = 2.036;
NSString *str = [NSString stringWithFormat:@%3f,a];

But this does not seem to work. Everytime it creates the string it  
is 2.036000 instead of 2.036


What should be the format specifier to do this ?


I think you have to use %1.3f as specifier.

Greetings
Jens
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[Moderator]Re: iPhone Development Mailing List

2008-10-16 Thread Scott Anguish

 The NDA is still in effect, and will remain in effect until you  
receive the new program agreements.



You can't talk about it here, and legally you can't talk about it  
elsewhere.


When new agreements are sent to developers, new list guidelines will  
be sent as well.


Please, Do not use this list to point to resources that are allowing  
NDA violations. The support forums have been poked yet again.



It's been two weeks and Apple moves with its usual slowness and
secrecy. It's probably going to take a while longer. And then some
more. And then we wait a couple of weeks for the official mailing
list. In the meantime, outside of the Apple domain, everybody is
happily openly discussing iPhone development and even books are being
released with the consent of Apple.


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Re: NSTokenField: Tokenizing on Right Arrow key

2008-10-16 Thread Aki Inoue

Since the key events are currently handled directly by the text view  
short-circuiting the normal key binding management (and, thus, - 
control:textView:doCommandBySelector: delegation), there is no easy  
way to accomplish this right now.


The easiest thing you can do is to write a bug 8-).

Aki

On 2008/10/14, at 1:14, Dirk Musfeldt wrote:


Hi,

I'm using NSTokenField on 10.5. I want the field to display the  
token once
the user presses the right arrow key to get at the end of the  
selection.

this is the way it works in Mail's address field.

Unfortunately this does not work as expected. It works if the user  
enters
one of the tokenizing characters or presses the return key but not  
with the

right arrow key.

Anybody has a suggestion how to get that working?


Regards

Dirk



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Unable to parse special characters using NSXMLParser

2008-10-16 Thread JanakiRam

Hi All,
I'm having problems with NSXMLParser while parsing XML File which contain
some special characters or Non-UTF8 Characters,

My application will get the XML Document data from my server.  I'm creating
the NSXMLParser with NSData received from Server. Some times it could be
possible that received NSData may contain special characters such as Ä? ,
then parser stops itself and returns an error saying Invalid Character
Found. Here is the Exact Error am receiving ---

*NSXMLParserErrorDomain error 9*

Please provide your valuable suggestions to solve the problem.

Thanks in Advance.

JanakiRam
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Get service requester application name

2008-10-16 Thread Вера


Hello everyone!
I'm writing a service which should get selected text and requester  
name... Which selected text everything is ok. But with service  
requester app name...

Is such possibility exists or I'm a dreamer )

Thanks in advance. Hope my question is clear )

--  
With regards, Vera Tkachenko

[ICQ#230923300]
[web http://vera.org.ua]




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NSPredicateEditorRowTemplate and CoreData

2008-10-16 Thread Arved von Brasch


Hello Cocoa Dev List,

I'm loving NSPredicateEditor and what it lets you do.  I'm wondering  
about the best way to manage what I want to do:


I want a Pop-Up Pop-Up Pop-Up template row, where the last view is  
populated by every item of a particular CoreData Entity.  The entity  
has one attribute, 'name', that should be the display item, but the  
objects themselves (or at least their URL ID) should be part of the  
predicate, so that the predicate can follow the object should the name  
attribute change.  I'm expecting to parse the predicate tree when I  
want to use it to replace the object instance with its name attribute.


That part is relatively easy to set up in a  
NSPredicateEditorRowTemplate subclass.  I'm using an IBOutlet link to  
an NSArrayController which has all the items to populate the list  
with.  Overriding templateViews to populate the last view with the  
appropriate values.  This seems a little kludgy, but works well  
enough.  If there's a better solution, I'd love to hear it!


What's troubling me is the edge case where there are no objects of the  
particular entity in the database.  I think the best option would be  
to prevent the associated Row Template from being selectable from the  
left hand side Pop-Up, but I can't seem to find any way to do that.   
There is a potential problem I can see with removing the item from the  
left hand side Pop-Up anyway, namely, what happens if a previously  
saved predicate is given to the predicate editor.  Is there an elegant  
solution to this?


I appreciate any ideas,

Arved von Brasch
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newbie: send message to class not instance

2008-10-16 Thread Horst Jäger



Hi,

let's say I have a class MyClass

@interface MyClass : NSObject{

 - (void) myInstanceMethod;
 + (void) myClassMethod;

}

with an instance myInstance

MyClass *myInstance = [[MyClass alloc] init];

. I could then call myInstanceMethod like

[myInstance myInstanceMethod];

. I could call the static (or, like the Java-people say, class-) method like

[MyClass myClassMethod];

. I couldn't, however, call the static method via the Instance:

[myInstance myClassMethod];

wouldn't work. That's different in the languages I know, e.g. Java .

So far the preliminaries. Here comes the problem:

I could send a message to the instance, calling the instance-method 
with objc_msgSend or one of the related commands like performSelector:


objc_msgSend(myInstance, @selector(myInstanceMethod));

But I can't  send a message to the instance, calling the static 
method with objc_msgSend :


objc_msgSend(myInstance, @selector(myClassMethod));

, because that's the same as

[myInstance myClassMethod];

which doesn't work as said above.

But I can't send a message to the class either, calling the static 
method  with objc_msgSend:


objc_msgSend(MyClass , @selector(myClassMethod));

because MyClass is not a term for an Object, so I get a syntax error.

Thus there seems to be no way to call a static method by sending a 
message via objc_msgSend .


Is that so? Any help?

Thanks in advance

Horst














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Re: newbie: send message to class not instance

2008-10-16 Thread Bill Bumgarner


On Oct 16, 2008, at 9:38 AM, Horst Jäger wrote:
. I could call the static (or, like the Java-people say, class-)  
method like


Java borrowed from Objective-C on this and many other features.  Java  
was actually derived from Obj-C.


It is a class method.  Not a static method.

Class methods are inherited and can be overridden.

As to your other question, do this:

[[myInstance class] myClassMethod];

Done.

b.bum



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Re: Unable to parse special characters using NSXMLParser

2008-10-16 Thread Dave Carrigan



On Oct 16, 2008, at 11:23 AM, JanakiRam wrote:

I'm having problems with NSXMLParser while parsing XML File which  
contain

some special characters or Non-UTF8 Characters,


Is the server setting the appropriate character encoding in the XML  
document? If it is not, then the document is not well-formed, and  
NSXMLParser is correctly rejecting it.


You can see what encoding is being used by examining the first line;  
it will look something like


  ?xml version='1.0' encoding='the-doc-encoding' ?

--
Dave Carrigan
[EMAIL PROTECTED]
Seattle, WA, USA



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Re: Get service requester application name

2008-10-16 Thread Peter Ammon



On Oct 16, 2008, at 12:32 AM, Вера wrote:


Hello everyone!
I'm writing a service which should get selected text and requester  
name... Which selected text everything is ok. But with service  
requester app name...

Is such possibility exists or I'm a dreamer )

Thanks in advance. Hope my question is clear )


You want to find which application requested the Service?  There's not  
a perfect way to do this today, but what some apps do is to check  
which app is frontmost (via GetFrontProcess()) at the time the Service  
request is received.


-Peter

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Re: Unable to parse special characters using NSXMLParser

2008-10-16 Thread JanakiRam

Dave,
Thanks for the response.

In this case we are getting the following as the first line of the document.

?xml version=1.0?

JanakiRam

On Fri, Oct 17, 2008 at 12:11 AM, Dave Carrigan [EMAIL PROTECTED] wrote:


 On Oct 16, 2008, at 11:23 AM, JanakiRam wrote:

  I'm having problems with NSXMLParser while parsing XML File which contain
 some special characters or Non-UTF8 Characters,


 Is the server setting the appropriate character encoding in the XML
 document? If it is not, then the document is not well-formed, and
 NSXMLParser is correctly rejecting it.

 You can see what encoding is being used by examining the first line; it
 will look something like

  ?xml version='1.0' encoding='the-doc-encoding' ?

 --
 Dave Carrigan
 [EMAIL PROTECTED]
 Seattle, WA, USA


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Re: Unable to parse special characters using NSXMLParser

2008-10-16 Thread Benjamin Dobson


On 16 Oct 2008, at 19:50:01, JanakiRam wrote:

Dave,
Thanks for the response.

In this case we are getting the following as the first line of the  
document.


?xml version=1.0?

JanakiRam



Check the encoding of the file itself.

http://www.w3schools.com/XML/xml_encoding.asp
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Re: NSPredicateEditorRowTemplate and CoreData

2008-10-16 Thread Peter Ammon



On Oct 16, 2008, at 3:56 AM, Arved von Brasch wrote:


Hello Cocoa Dev List,

I'm loving NSPredicateEditor and what it lets you do.  I'm wondering  
about the best way to manage what I want to do:


I want a Pop-Up Pop-Up Pop-Up template row, where the last view is  
populated by every item of a particular CoreData Entity.  The entity  
has one attribute, 'name', that should be the display item, but the  
objects themselves (or at least their URL ID) should be part of the  
predicate, so that the predicate can follow the object should the  
name attribute change.  I'm expecting to parse the predicate tree  
when I want to use it to replace the object instance with its name  
attribute.


That part is relatively easy to set up in a  
NSPredicateEditorRowTemplate subclass.  I'm using an IBOutlet link  
to an NSArrayController which has all the items to populate the list  
with.  Overriding templateViews to populate the last view with the  
appropriate values.  This seems a little kludgy, but works well  
enough.  If there's a better solution, I'd love to hear it!


That's a fine approach.  You can also just create a new RowTemplate  
and set it on the NSPredicateEditor every time your list of items  
changes.


What's troubling me is the edge case where there are no objects of  
the particular entity in the database.  I think the best option  
would be to prevent the associated Row Template from being  
selectable from the left hand side Pop-Up, but I can't seem to find  
any way to do that.


There's no way to, say, disable the item, but you can remove it  
entirely by just removing that RowTemplate from the predicate editor's  
array of row templates.


 There is a potential problem I can see with removing the item from  
the left hand side Pop-Up anyway, namely, what happens if a  
previously saved predicate is given to the predicate editor.  Is  
there an elegant solution to this?


What you can do here is have a fallback template, that is, another  
template capable of showing the predicate.  If you load a predicate  
that references an item in the database that no longer exists, the  
fallback can display something generic instead.  You would implement  
this by having multiple templates nonzero for matchForPredicate:, with  
the fallback returning the smaller value.


You can also just preprocess the predicate to excise or replace  
predicates that no longer apply.


If no template claims the ability to show a particular predicate, then  
the predicate editor will complain (but does not raise an exception in  
Leopard), and then ignore the the predicate.


Hope this helps,
-Peter

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Re: tearing my hair out: +(NSSet *)keyPathsForValuesAffectingValueForKey:


On Oct 15, 2008, at 9:12 PM, Chris Idou wrote:


I'm now calling the super class as described, but it doesn't help.


In the code you originally provided, an object was observing itself  
using KVO.  Can you reproduce when a different object is the observer?


Also, is canLink actually changing?  You have told KVO that its value  
is affected by noteController.linkableSelection, but I think (under  
some circumstances) KVO actually checks if canLink has been changed as  
a result of noteController.linkableSelection changing before putting  
out a change notification for canLink.


I don't recall if you actually showed us the getter for canLink.

Cheers,
Ken

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Re: How to get icon of special folder (like /Applications or /Library)?


On Oct 16, 2008, at 10:08 AM, Alexander Shmelev wrote:

On Mac OS X many special folders have their own personal icons. For  
example /Applications have capital letter A on generic folder  
icon.


I have some path which leads to some special folder. How can I  
determine what icon this folder have?

Path is stored in NSString.


In general, to get the icon for any item in the file system, you can  
use:


[[NSWorkspace sharedWorkspace] iconForFile:pathToTheFile]

Also, just in case, you should not hard-code /Applications or any  
other path to a special folder in your code.  You should use  
NSSearchPathForDirectoriesInDomains or FSFindFolder to determine the  
path to a special folders at run time.


Cheers,
Ken

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Calling UNIX command from Cocoa

Ok., I am sure I have seen one but can't seem to find it. I need an  
Open Source class to call a command line program with a couple of  
arguments. Does any one know of any and where I can find one?


Thanks.
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Re: Calling UNIX command from Cocoa


On Oct 16, 2008, at 3:09 PM, development2 wrote:

Ok., I am sure I have seen one but can't seem to find it. I need an  
Open Source class to call a command line program with a couple of  
arguments. Does any one know of any and where I can find one?


Do you need open source to see the source, or just so it's available  
for you to use.


I ask because such a class is built into Cocoa, although it's closed  
source: NSTask.


I suppose, if you really need to see source code, there's probably a  
version of NSTask in GnuStep.


Cheers,
Ken

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Re: Calling UNIX command from Cocoa

2008-10-16 Thread Franklin Marmon



Calling a command line function can be handled with plain old C as  
well. Look at the exec() function set.


frm

Franklin Marmon
[EMAIL PROTECTED]
GTalk: [EMAIL PROTECTED]



On Oct 16, 2008, at 2:14 PM, Ken Thomases wrote:


On Oct 16, 2008, at 3:09 PM, development2 wrote:

Ok., I am sure I have seen one but can't seem to find it. I need an  
Open Source class to call a command line program with a couple of  
arguments. Does any one know of any and where I can find one?


Do you need open source to see the source, or just so it's available  
for you to use.


I ask because such a class is built into Cocoa, although it's closed  
source: NSTask.


I suppose, if you really need to see source code, there's probably a  
version of NSTask in GnuStep.


Cheers,
Ken

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Re: -[NSMutableSet addObject:] Ambiguous Docs: -isEqual: vs. ==

2008-10-16 Thread Keith Duncan

adding duplicates based on -isEqual: ^is^ indeed the behavior that I  
want


You might take a look at NSCountedSet, which doesn't add the object  
again but bumps the count.


Keith
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Desired Tabbing order not working

2008-10-16 Thread Adil Saleem

Hi,
 
There is a small problem i am having while using Interface Builder. I have 
multiple text fields on my window. I have specified my own sequence of 
nextKeyView, so that while tabbing through those text fields, it follows my 
desired order. I have made the required connections and it even shows 
them correctly in inspector window. But when i actually run the application, 
the order of nextKeyView is not the same as i had specified it.  Please guide 
what can be wrong here. Or is there any special requirements for changing the 
nextKeyView order.
 
Thanx
 



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Re: Faceless background app that uses NSAppleScript

2008-10-16 Thread has


Scott Ribe wrote:


I need to write an app whose purpose is to drive other apps, using
NSAppleScript. No UI is needed. But I'm unclear on what kind of  
environment
needs to be set up in order for NSAppleScript to work. I suspect it  
needs at

least NSRunLoop event processing; I wonder if it might also need an
NSApplication around.


Installing Apple event handlers that receive incoming events from  
other processes requires an event loop, of course, but I'm not aware  
of any limitations in NSAppleScript or the AppleScript component that  
force you to create one for outgoing events.


You certainly don't need an event loop to use AESend() or  
AESendMessage() unless you want to receive replies asynchronously.  
I've written scads of event loop-less Python/Ruby/ObjC code that uses  
both of these APIs synchronously. I've also written the occasional  
Python shell script to run AppleScripts via the Carbon OSA or Cocoa  
NSAppleScript APIs without problems.


FWIW, I think the AppleScript component may require a Window Manager  
connection, but you're unlikely to be running it in an environment  
without WM access anyway (as scriptable desktop applications  
invariably require WM access as well).



Past use of NSAppleScript has revealed that it's somewhat quirky  
about

event handling, in that what looks like a blocking synchronous call
(executeAndReturnError), seems to allow the event loop to keep  
processing

while it's waiting for a response.


I don't think so - AppleScript is normally used on the main thread on  
account of it being a PITA to use anywhere else, and anything running  
on your main thread will block your event loop until it returns.  
(There is an ancient and convoluted mechanism in AESend() from pre-OS  
X days that allows it to yield to other routines while waiting on a  
response, but let's not go there.)



You could also try asking on the applescript-users or applescript- 
implementors mailing lists; someone like Chris Nebel (AppleScript  
engineer) could tell you for sure what AS's limitations are.


HTH

has
--
Control AppleScriptable applications from Python, Ruby and ObjC:
http://appscript.sourceforge.net

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Re: Length of a filename

2008-10-16 Thread Gerriet M. Denkmann



On 16 Oct 2008, at 16:18, Jean-Daniel Dupas wrote:



Le 16 oct. 08 à 11:31, Gerriet M. Denkmann a écrit :



How can I check the appositeness of a filename?

This will not work:
if ( [potentialPath length]  255 )  ... error: filename too long
because HFS+ uses some decomposed form.

This might work:
if ( [[ NSString stringWithUTF8String: [potentialPath  
fileSystemRepresentation] ] length]  255 )  ...

but looks kind of convoluted and inefficient.

There are two methods in NSString:
decomposedStringWithCanonicalMapping
decomposedStringWithCompatibilityMapping
but the documentation does not say which (if any) should be used  
to convert a potentialPath into a form used in HFS+.




OSStatus FSGetHFSUniStrFromString(CFStringRef str, HFSUniStr255  
*uniStr);


Looks promising, but does not work - it does not decompose the filename:
NSString *f1 = [ NSString stringWithUTF8String: bête ];
HFSUniStr255 uniStr;
FSGetHFSUniStrFromString( (CFStringRef)f1, uniStr);
	NSLog(@HFSUniStr length %hu, uniStr.length); //	this is the  
original length, NOT the decomposed lenght

Returns 4 - but the decomposed length is 5.

But your advice (and of Michael Ash) not to preflight a filename is  
probably correct.

Thanks for pointing this out.

Kind regards,

Gerriet.

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Re: Multiple persistent store coordinators gotchas?

2008-10-16 Thread Dave Dribin


Hi Melissa,

Thanks for your help.  A quick question on this stale data statement:

On Oct 15, 2008, at 5:52 PM, Melissa J. Turner wrote:
Stale data is unlikely to be a problem unless you're expecting to  
load it significantly before you actually need it, which would be  
the same if you were loading it into a separate context on the same  
coordinator.


Just to clarify, stale data is only an issue for long-lived MOCs, not  
long-lived PSCs.  For example, if we create 1 PSC for all the  
background threads to share for the lifetime of the app, but only  
create (or reset) MOCs just before report generation, there's minimal  
chance of stale data.  These new/reset MOCs will always have fresh data?


-Dave

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Re: Animating view transitions with Core Animation (problems with BasicCocoaAnimations sample)

2008-10-16 Thread Troy Stephens


Hi Jim,

On Oct 13, 2008, at 3:51 PM, Jim Correia wrote:
I have some old NSAnimation based code that I'd like to update to  
use Core Animation.


Since BasicCocoaAnimations [1] does essentially what I want to do  
(at least for starters) I am using that as a starting point.


[1] http://developer.apple.com/samplecode/BasicCocoaAnimations/index.html

Problem #1:

- Animation for -replaceSubview:with: appears to require a layer  
backed view tree.

- Certain controls are not supported with layer backed view trees.
- Others work poorly:
	- Focus rings are drawn incorrectly for editable NSTextField and  
friends [2]
	- Non-editable NSTextFields have incorrect anti-aliasing (without  
Scott Stevenson's hack)
	- NSTokenField has other issues (will be more specific and file a  
radar later)


[2] http://skitch.com/jim.correia/2115/

Is there a direct workaround for any of these problems?


See Ken's reply regarding the text antialiasing.  Subpixel (LCD /  
font smoothing) antialiasing is on by default when views are asked  
to draw into their backing layers, but produces poor results if there  
isn't an opaque background behind the text drawn in that same layer  
(view).  The options are to either switch off font smoothing (giving  
you regular, whole-pixel antialiasing) or give each TextField an  
opaque background color (and don't forget to also set drawsBackground  
to YES).


The focus ring issue is known and we hope to find a better solution to  
it.  The present focus ring model that allows for drawing outside a  
view's bounds is at odds with the sizing of view backing layers, which  
doesn't allow extra margin for focus rings.  The result, for now, is  
thin focus rings when in layer-backed mode.


Please do file a Radar for whatever you're seeing in NSTokenField.

The workaround I attempted was to make the view tree in the window  
layer backed only during the animation. This leads to problems #2  
and #3.


Problem #2:

If I set view.wantsLayer=YES on the content view of the window  
before doing the transitions, they are still not animated. If I  
force that subview tree to re-display before sending - 
replaceSubview:with: to the animator proxy, the transition is  
animated.


While this works, forcing a view tree to display is usually the  
wrong way to go about things. Is it expected that I need to force  
display a view tree after view.wantsLayer=YES if I expect to start  
implicit animations on that run loop cycle?


The -display is necessary in this case, since without it there won't  
be an opportunity for the views to be drawn into their backing layers  
in a transaction that precedes whatever animation you're then going to  
apply to those backing layers.


If you want to be more efficient about it, a - 
displayIfNeededIgnoringOpacity sent to the root view of the layer- 
backed subtree (the view for which you're setting wantsLayer=YES)  
should suffice, and will avoid redisplaying other views higher up in  
the hierarchy.



Problem #3:

In order to arrange for my view tree to only be layer backed for the  
duration of the animation, I need to know when the animation  
finishes :-)


The benefit of the implicit view animations is that much of the  
heavy lifting has already been done for me, so I'd like to take  
advantage of it if possible. The problem, though, is that since I'm  
not running the animations explicitly, I don't know when they are  
done.


My current hack is to begin the implicit animations in a group, and  
use a perform delayed action to cleanup after the animation (based  
on the groups interval.)


This feels like a hack though. Is there a better way?


Using a perform-after-delay, an NSTimer, or equivalent is actually the  
recommended technique.  Execution of CAAnimations always obeys wall- 
clock time, so you can be assured of completion after the duration has  
elapsed, regardless of system load.


Alternatively, if you're providing your own CAAnimation instance to  
drive a particular animation (for layer-backed views, this would be  
done using an entry in a view's animations dictionary, or by  
overriding +defaultAnimationForKey: or -animationForKey:), you can set  
a delegate for the animation.  The delegate will then receive an - 
animationDidStop:finished: message when the animation terminates, if  
the delegate implements such a method.


Most of the time, the NSTimer approach is the simpler, more convenient  
way to go.


Troy


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NSManagedObjectModel initWithContentsOfURL: returns nil

2008-10-16 Thread Todd Blanchard

I've been trying to open this core data model all day.  XCode can open  
it.

I'm passing the path the the model file as a file path parameter.

NSManagedObjectModel* model = [[NSManagedObjectModel  
alloc]initWithContentsOfURL:[NSURL fileURLWithPath:modelFile]];


The modelFile is an absolute path.  If I take this absolute path and  
use it in terminal with


open modelFile

then XCode happily pops up the model editor.  So the path is good,  
presumably the model is good since XCode opens it.  But I cannot make  
it happen programmatically.


The path is /Users/todd/Projects/MyProjectGroup/MyProject/ 
BusinessModel.xcdatamodel/


The call returns nil.  Nothing NSLogged, no exception, no clue  
provided at all - just silent failure (which in itself is a bug as far  
as I'm concerned).


What would make it return nil?


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Re: NSManagedObjectModel initWithContentsOfURL: returns nil

2008-10-16 Thread Chris Hanson


On Oct 16, 2008, at 2:33 PM, Todd Blanchard wrote:

I've been trying to open this core data model all day.  XCode can  
open it.

I'm passing the path the the model file as a file path parameter.

NSManagedObjectModel* model = [[NSManagedObjectModel  
alloc]initWithContentsOfURL:[NSURL fileURLWithPath:modelFile]];



The path is /Users/todd/Projects/MyProjectGroup/MyProject/ 
BusinessModel.xcdatamodel/


What you're trying to open is an Xcode data model, which Xcode can  
compile into a Core Data managed object model (.mom) file.  Core  
Data can't read Xcode data model files directly.


In part, this is because Xcode data model files are allowed to be  
inconsistent for development convenience -- for example, they can have  
relationships with no destination entity set -- while Core Data  
managed object model files require a minimum amount of consistency.   
Xcode's model compiler will generate warnings and errors to enforce  
that consistency during model compilation.


  -- Chris

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Re: Calling UNIX command from Cocoa


Yeah I know about NSTask, I just can't get it too work correctly.


On Oct 16, 2008, at 2:14 PM, Ken Thomases wrote:


On Oct 16, 2008, at 3:09 PM, development2 wrote:

Ok., I am sure I have seen one but can't seem to find it. I need an  
Open Source class to call a command line program with a couple of  
arguments. Does any one know of any and where I can find one?


Do you need open source to see the source, or just so it's available  
for you to use.


I ask because such a class is built into Cocoa, although it's closed  
source: NSTask.


I suppose, if you really need to see source code, there's probably a  
version of NSTask in GnuStep.


Cheers,
Ken




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Re: Calling UNIX command from Cocoa

2008-10-16 Thread Bill Bumgarner


On Oct 16, 2008, at 3:03 PM, development2 wrote:

Yeah I know about NSTask, I just can't get it too work correctly.


NSTask is one heck of a lot easier to use than any of the lower level  
calls except, maybe, popen().


It definitely works, too.

What are the failure symptoms?

b.bum



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Re: Calling UNIX command from Cocoa

2008-10-16 Thread Torsten Curdt



On Oct 17, 2008, at 00:08, Bill Bumgarner wrote:


On Oct 16, 2008, at 3:03 PM, development2 wrote:

Yeah I know about NSTask, I just can't get it too work correctly.


NSTask is one heck of a lot easier to use than any of the lower  
level calls except, maybe, popen().


It took me also quite a while to get it working properly. Most  
examples were just too simplistic.


By no means saying this is perfect but it seems to work:

 http://github.com/tcurdt/feedbackreporter/tree/master/Sources/Main/Command.m

cheers
--
Torsten
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Re: [Moderator]Re: iPhone Development Mailing List

2008-10-16 Thread Torsten Curdt



On Oct 16, 2008, at 20:09, Scott Anguish wrote:

The NDA is still in effect, and will remain in effect until you  
receive the new program agreements.



You can't talk about it here, and legally you can't talk about it  
elsewhere.


When new agreements are sent to developers, new list guidelines will  
be sent as well.


Please, Do not use this list to point to resources that are allowing  
NDA violations. The support forums have been poked yet again.


I know it's not your fault, Scott. But this really is ridiculous. NDA  
lifted - but wait!


The first rule of fight club is... you do not talk about fight club  
- just a little longer.


Anyway ... I subscribed. Thanks for the link.

With the official announcement from Apple I doubt anyone can really  
get into trouble talking about it anyway. IANAL but I guess everyone  
except people on this list are taking the risk.


Sorry for the non-cocoa post. Just hope Apple is not continuing to  
make a bad joke out of this.


cheers
--
Torsten

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Hand-building an Application Menu

2008-10-16 Thread Russ

My menus are generated programmatically, not with a NIB (non-negotiable). That 
works fine. I've been trying to get a correct Application menu, though, without 
success after a wasted day. The code I have is based on stuff I have found on 
the web and seems to make sense in principle. It all runs, but the app menu 
remains missing (the 1st time run) or incomplete (succeeding runs).  Code 
follows, it gets called right after setting up the shared NSApp, before 
starting the run loop. There are no error messages or crashes---it is an 
expensive no-op.

Thanks.

void SetAppMenu(int aID, int pID, const char *appname)
{
NSMenu *appmenu, *srvmenu;
NSString *nstr, *astr, *pstr, *hstr, *sstr, *qstr;
NSMenuItem *itm, *aitm, *pitm, *sitm;

if (!menu_delegate)
menu_delegate = [[myMenuDelegate alloc] init];

nstr = [NSString stringWithFormat:@%s, appname];
astr = [NSString stringWithFormat:@About %s, appname];
pstr = [NSString stringWithFormat:@Preferences%C, (unichar)0x2026];
hstr = [NSString stringWithFormat:@Hide %s, appname];
qstr = [NSString stringWithFormat:@Quit %s, appname];
sstr = @Services;

appmenu = setupMenu(nstr);
srvmenu = setupMenu(sstr);

aitm = [[NSMenuItem alloc] initWithTitle:astr 
action:@selector(about:) keyEquivalent:@];
[aitm setTarget:menu_delegate];
[aitm setTag:aID];
[appmenu addItem:aitm];
[appmenu addItem:[NSMenuItem separatorItem]];

pitm = [[NSMenuItem alloc] initWithTitle:pstr 
action:@selector(preferences:) keyEquivalent:@,];
[pitm setTarget:menu_delegate];
[pitm setTag:pID];
[appmenu addItem:pitm];
[appmenu addItem:[NSMenuItem separatorItem]];

sitm = [[NSMenuItem alloc] initWithTitle:sstr action:0 keyEquivalent:@];
[sitm setSubmenu:srvmenu];
[appmenu addItem:sitm];
[appmenu addItem:[NSMenuItem separatorItem]];

itm = [[NSMenuItem alloc] initWithTitle:hstr 
action:@selector(hide:) keyEquivalent: @h];
[itm setTarget:menu_delegate];
[appmenu addItem:itm];

itm = [[NSMenuItem alloc] initWithTitle: @Hide Others 
action:@selector(hideOtherApplications:) keyEquivalent:@];
[itm setTarget:menu_delegate];
[appmenu addItem:itm];

itm = [[NSMenuItem alloc] initWithTitle: @Show All 
action:@selector(unhideAllApplications:) keyEquivalent:@];
[itm setTarget:menu_delegate];
[appmenu addItem:itm];
[appmenu addItem:[NSMenuItem separatorItem]];

itm = [[NSMenuItem alloc] initWithTitle:qstr 
action:@selector(terminate:) keyEquivalent:@q];
[appmenu addItem:itm];

// Does this: [NSApp setAppleMenu:appmenu];

[NSApp performSelector:@selector(setAppleMenu:) withObject:appmenu];
[NSApp setServicesMenu:srvmenu];
}


NSMenu *setupMenu(NSString *title)// title shouldn't be Null
{
NSMenu *men = [[NSMenu alloc] initWithTitle:title];
[men setAutoenablesItems:NO];

if (!menu_delegate)
menu_delegate = [[myMenuDelegate alloc] init];

[men setDelegate:menu_delegate];
return men;
}

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Enumerating a folder and getting a file's type

2008-10-16 Thread jeffs87


Hi,

I'm enumerating a folder and checking the extension but I would also 
like to check the type in case there is no extension.   Like AIFF 
Audio File for .aif file.  How do you do that?


thanks
Jeff

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Re: Desired Tabbing order not working

2008-10-16 Thread Jonathan Hess


Hey Adil -

Do you happen to have the Auto Recalculates View Loop checkbox  
checked in the containing window's attributes inspector?


Jon Hess

On Oct 16, 2008, at 1:31 PM, Adil Saleem wrote:


Hi,

There is a small problem i am having while using Interface Builder.  
I have multiple text fields on my window. I have specified my own  
sequence of nextKeyView, so that while tabbing through those text  
fields, it follows my desired order. I have made the required  
connections and it even shows them correctly in inspector window.  
But when i actually run the application, the order of nextKeyView is  
not the same as i had specified it.  Please guide what can be wrong  
here. Or is there any special requirements for changing the  
nextKeyView order.


Thanx




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Re: executables for OSX 10.4 vs 10.5

2008-10-16 Thread Stefan Werner



On Oct 15, 2008, at 2:57 AM, Thomas Engelmeier wrote:

Or is there some way to build a single app that runs on both and if  
so are there any drawbacks to doing this?


The only drawback is you get partially buggy, backward compatible  
behavior on Leopard when you link against the 10.4 SDK.


Can you elaborate? I was under the naive assumption that as long as I  
don't use any 10.5-only APIs the 10.4 SDK and the 10.5 SDK should  
behave the same.


I like using the 10.4 SDK over the 10.5 SDK because it'll prevent me  
from accidently using 10.5-only calls that would then crash on 10.4.


-Stefan
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Re: Enumerating a folder and getting a file's type


On Oct 16, 2008, at 5:46 PM, [EMAIL PROTECTED] wrote:

I'm enumerating a folder and checking the extension but I would also  
like to check the type in case there is no extension.   Like AIFF  
Audio File for .aif file.  How do you do that?


The narrow answer to your question is: make an NSURL from the file  
path and pass it to LSCopyKindStringForURL (NSURL is toll-free bridged  
with CFURLRef).


However, you should consider working with UTIs (Uniform Type  
Identifiers) rather than checking either extensions or kind strings.   
Read up on UTIs here: http://developer.apple.com/documentation/Carbon/Conceptual/understanding_utis/ 
.


You can use the NSWorkspace methods to check whether a file's UTI  
conforms to the type(s) you want to handle: -typeOfFile:error: and - 
type:conformsToType:.  For AIFF audio, you want to check for  
conformance to the UTI public.aiff-audio.


Cheers,
Ken

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Re: executables for OSX 10.4 vs 10.5

2008-10-16 Thread Kyle Sluder

On Thu, Oct 16, 2008 at 7:24 PM, Stefan Werner [EMAIL PROTECTED] wrote:
 Can you elaborate? I was under the naive assumption that as long as I don't
 use any 10.5-only APIs the 10.4 SDK and the 10.5 SDK should behave the same.

Very much no.  To fix bugs, but not break workarounds that people have
developed, the bug fixes are often only enabled when linking against
the new SDK.  Read the Backward Compatibility paragraph of the
AppKit Release Notes:
http://developer.apple.com/releasenotes/Cocoa/AppKit.html

--Kyle Sluder
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Object is not reachable from this managed object context

2008-10-16 Thread Lakshmi Vyasarajan


Hello,

I am developing an application that imports / synchronizes data from a  
web service .   I have a worker thread performing the poll / sync  
routine. After I do the sync I refresh the main thread by calling  
mergeChangesFromContextDidSaveNotification.


I get an exception with reason [Object is not reachable from this  
managed object context].  In the following code, saveComplete is the  
handler for NSManagedObjectContextDidSaveNotification.


-(void)saveComplete:(NSNotification *)notification{
	[self performSelectorOnMainThread:@selector(saveOnMain:)  
withObject:notification waitUntilDone:YES];

}

-(void)saveOnMain:(NSNotification *)notification{
NSLog(@Refreshing main thread);
	NSManagedObjectContext * appContext = [[NSApp delegate]  
managedObjectContext];

[appContext lock];
@try{
		[appContext  
mergeChangesFromContextDidSaveNotification:notification];		

[EMAIL PROTECTED](NSException * exception){

NSLog([exception reason]);
@throw;
[EMAIL PROTECTED]
[appContext unlock];
}


NSLog(@Refresh suceeded);
}

I could not find any references to this error leading me to believe  
that I am doing something completely wrong  and I have no clue what it  
is.


Thanks in advance,
Lakshmi.
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Re: table bindings, value transformer per row?

2008-10-16 Thread Keary Suska



On Oct 15, 2008, at 7:35 PM, [EMAIL PROTECTED] wrote:

i've got a bound table view. is it possible to use a different value  
transformer based on which row of the table is being displayed/ 
edited? and if so, how?



Yes, you can. The formatter is a property of the cell, and not the  
column, per se. You need an object that is the tableview's delegate,  
then implement -tableView:willDisplayCell:forTableColumn:row:. NSCell  
has a -setFormatter: method for your convenience. I have used this  
successfully without error, but I haven't performance tested it. I  
don't suspect that it is much slower.


HTH,

Keary Suska
Esoteritech, Inc.
Demystifying technology for your home or business

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Re: Sharing a Bindings Controller between nibs

2008-10-16 Thread Kyle Sluder

On Tue, Oct 14, 2008 at 6:30 PM, Citizen [EMAIL PROTECTED] wrote:
 So, what is the cleanest way (i.e with the least glue code) of connecting
 the two?

Bind it through File's Owner.  You may want to look into using an
NSViewController for this.

--Kyle Sluder
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Re: table bindings, value transformer per row?

2008-10-16 Thread [EMAIL PROTECTED]

i was asking about the value transformer that is specified for the 
binding. i am aware that it is quite easy to change formatters.


thanx anyway,
ken


At 5:49 PM -0600 10/16/08, Keary Suska wrote:

On Oct 15, 2008, at 7:35 PM, [EMAIL PROTECTED] wrote:

i've got a bound table view. is it possible to use a different 
value transformer based on which row of the table is being 
displayed/edited? and if so, how?



Yes, you can. The formatter is a property of the cell, and not the 
column, per se. You need an object that is the tableview's delegate, 
then implement -tableView:willDisplayCell:forTableColumn:row:. 
NSCell has a -setFormatter: method for your convenience. I have used 
this successfully without error, but I haven't performance tested 
it. I don't suspect that it is much slower.


HTH,

Keary Suska
Esoteritech, Inc.
Demystifying technology for your home or business


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Error in NSTask launch

I know it is something I am doinig but I am getting an error I can't  
seem to figure out. Here the code and then the error.


NSString *exePath = [[NSBundle  
bundleWithIdentifier:@com.yourcompany.SetupDevice]  
pathForResource:@upnpsearch ofType:@];


RunCommand *command = [[RunCommand alloc] initWithPath:exePath];
// set up the args
NSNumber *time = [NSNumber numberWithInt:15];
NSString *destPath = [NSString stringWithString:@/tmp];

NSArray *myArray = [NSArray arrayWithObjects: time, destPath, nil];
[command setArgs:myArray];

int result = [command execute];

Now in execute tI have the call:

[task launch];

I get the error:
2008-10-16 19:36:21.530 Installer[39330:813] *** -[NSCFNumber  
fileSystemRepresentation]: unrecognized selector sent to instance  
0x3fbe9a20

(gdb) continue
2008-10-16 19:36:24.751 Installer[39330:813] *** -[NSCFNumber  
fileSystemRepresentation]: unrecognized selector sent to instance  
0x3fbe9a20


Now I know this is on the arguments that I am passing in to the  
command line, but they look fine to em (Above in code) can anyone else  
see anything wrong?


Thanks,

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Re: Error in NSTask launch

2008-10-16 Thread Nick Zitzmann



On Oct 16, 2008, at 7:49 PM, development2 wrote:


RunCommand *command = [[RunCommand alloc] initWithPath:exePath];
// set up the args
NSNumber *time = [NSNumber numberWithInt:15];
NSString *destPath = [NSString stringWithString:@/tmp];

NSArray *myArray = [NSArray arrayWithObjects: time, destPath, nil];
[command setArgs:myArray];

int result = [command execute];



From the documentation: arguments - An array of NSString objects  
that supplies the arguments to the task.


Note that it doesn't mention NSNumber in the documentation, so it  
doesn't surprise me if some exceptions were raised. So if you change  
that 15 to a string, then it should work.


Nick Zitzmann
http://www.chronosnet.com/



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Re: Error in NSTask launch

2008-10-16 Thread Roland King


development2 wrote:

I know it is something I am doinig but I am getting an error I can't  
seem to figure out. Here the code and then the error.


NSString *exePath = [[NSBundle  
bundleWithIdentifier:@com.yourcompany.SetupDevice]  
pathForResource:@upnpsearch 
ofType:@];


RunCommand *command = [[RunCommand alloc] initWithPath:exePath];
// set up the args
NSNumber *time = [NSNumber numberWithInt:15];
NSString *destPath = [NSString stringWithString:@/tmp];

NSArray *myArray = [NSArray arrayWithObjects: time, destPath, nil];

[command setArgs:myArray];

int result = [command execute];


Now in execute tI have the call:

[task launch];

I get the error:
2008-10-16 19:36:21.530 Installer[39330:813] *** -[NSCFNumber  
fileSystemRepresentation]: unrecognized selector sent to instance  
0x3fbe9a20

(gdb) continue
2008-10-16 19:36:24.751 Installer[39330:813] *** -[NSCFNumber  
fileSystemRepresentation]: unrecognized selector sent to instance  
0x3fbe9a20


Now I know this is on the arguments that I am passing in to the  
command line, but they look fine to em (Above in code) can anyone 
else  see anything wrong?


Thanks,



well you're exec'ing a shell command, which needs command-line arguments 
as strings. So each of your arguments is being converted to a string 
ready to be sent to the shell. That's accomplished by calling  
fileSystemRepresentation on each of them. As you can see, NSCFNumber (ie 
your NSNumber) doesn't implement that method, which isn't that 
surprising, there is no one fileSystemRepresentation of a number, you 
might want an integer, or a float with a given number of decimals or the 
word TRUE or .. anything.


You need to figure out what your shell command actually wants in string 
format, convert your NSNumber explicitly to that, and then pass that as 
an NSString

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Re: Error in NSTask launch

2008-10-16 Thread Rob Keniger



On 17/10/2008, at 11:49 AM, development2 wrote:

Now I know this is on the arguments that I am passing in to the  
command line, but they look fine to em (Above in code) can anyone  
else see anything wrong?



The array of arguments that you pass to NSTask must be an array of  
NSStrings. You are trying to include an NSNumber, you must convert it  
to a string first.


Also, you should use NSTemporaryDirectory() to get the location of the  
temporary files directory, you should not hard-code it.


--
Rob Keniger



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Converting from HTML

2008-10-16 Thread Drarok Ithaqua

Hi all, i'm trying to find a way to convert an HTML-originated URL  
into one I can use in cocoa.


Example input: link type=application/rss+xml rel=alternate href=/ 
search/uniqueamp;stuffamp;here /


I know the URL that this data is fetched from, so I can prefix that to  
achieve a full URL again, but I need to convert the amp;
into plain ampersands, but there could be all kinds of HTML characters  
in there. Is there a category on NSString out there I could

use for this?

I read somewhere that I could use an NSAttributedString and  
initWithHTML, but that leaves me with an empty string. I'm guessing  
because it's

inside a head tag? Not sure.

I'm also open to using something more intelligent than my current  
method of searching the string for link  to find the rss feed, if  
there's perhaps an
easier way that would also convert the HTML characters for me. Maybe  
webkit has something for me?


I look forward to your replies, and you have my thanks in advance.

 - Drarok
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Re: Error in NSTask launch

Yep... I have been at this too long today. I read that and completely  
disregarded it.


Thanks again.


On Oct 16, 2008, at 7:56 PM, Nick Zitzmann wrote:



On Oct 16, 2008, at 7:49 PM, development2 wrote:


RunCommand *command = [[RunCommand alloc] initWithPath:exePath];
// set up the args
NSNumber *time = [NSNumber numberWithInt:15];
NSString *destPath = [NSString stringWithString:@/tmp];

NSArray *myArray = [NSArray arrayWithObjects: time, destPath, nil];
[command setArgs:myArray];

int result = [command execute];



From the documentation: arguments - An array of NSString objects  
that supplies the arguments to the task.


Note that it doesn't mention NSNumber in the documentation, so it  
doesn't surprise me if some exceptions were raised. So if you change  
that 15 to a string, then it should work.


Nick Zitzmann
http://www.chronosnet.com/






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Re: [Moderator]Re: iPhone Development Mailing List

2008-10-16 Thread Scott Anguish

If you re-read the announcement, you'll see that the NDA is lifted  
ONLY after the new program terms go out.


http://developer.apple.com/iphone/program/

They aren't out yet. So the NDA is still in effect.

For the moment this is still not for public discussion on this list.


Thanks

scott
[moderator]

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Objective 2.0 properties

2008-10-16 Thread Ignacio Enriquez

hi everyone!
I have a problem that is taking me hours of debbuging time. So I
decided to learn the origin of the problem.
It's about properties (Objective C 2.0)

As you know there are some kinds of properties (nonatomic,
retain,asign, readonly, readwrite... etc)

Let's thinks the next case :

@interface Lesson : NSObject {
NSString *lessonTitle;
NSDate *referDate;
NSNumber *lessonDuration;
}
@property (nonatomic, retain) NSString* lessonTitle;
@property (nonatomic, retain) NSDate *referDate;
@property (assign) NSNumber * lessonDuration;

@property (readonly) UIImage * lessonImage;
@end

@implemetantion Lesson

@synthesize lessonTitle;
@synthesize referDate;
@synthesize lessonDuration;

-(UIImage *) lessonImage{
return [UIImage imageNamed:
[NSString stringWithFormat:@cellImage%@,self.lessonTitle]]; //is self. ok?
}

@end

So the question is
Inside Lesson.m when i want to call or refer lessonTitle what is the best?
self.lessonTitle or just only lessonTitle? (note that is nonatomic, retain))

the same
Inside Lesson.m when I want to call or refer lessonDuration, What is
the best? self.lessonDuration or just lessonDuration (note that is
assign)

the same
Inside Lesson.m when I want to call or refer lessonImage what is the best?
self.lessonImage　or just lessonImage? (note that is readonly)

I have been trying a lot of conbination and none of them result in
compilation errors, but when I run the application it crashes.!
So I would like to know the difference between self.property and just property

I would appreciate your really kind explanation.
Thanks.
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Re: Hand-building an Application Menu

2008-10-16 Thread Jeff Johnson


Russ,

Where do you add it to the main menu?

-Jeff


On Oct 16, 2008, at 5:45 PM, Russ wrote:

My menus are generated programmatically, not with a NIB (non- 
negotiable). That works fine. I've been trying to get a correct  
Application menu, though, without success after a wasted day. The  
code I have is based on stuff I have found on the web and seems to  
make sense in principle. It all runs, but the app menu remains  
missing (the 1st time run) or incomplete (succeeding runs).  Code  
follows, it gets called right after setting up the shared NSApp,  
before starting the run loop. There are no error messages or  
crashes---it is an expensive no-op.


Thanks.

void SetAppMenu(int aID, int pID, const char *appname)
{
   NSMenu *appmenu, *srvmenu;
   NSString *nstr, *astr, *pstr, *hstr, *sstr, *qstr;
   NSMenuItem *itm, *aitm, *pitm, *sitm;

   if (!menu_delegate)
   menu_delegate = [[myMenuDelegate alloc] init];

   nstr = [NSString stringWithFormat:@%s, appname];
   astr = [NSString stringWithFormat:@About %s, appname];
   pstr = [NSString stringWithFormat:@Preferences%C,  
(unichar)0x2026];

   hstr = [NSString stringWithFormat:@Hide %s, appname];
   qstr = [NSString stringWithFormat:@Quit %s, appname];
   sstr = @Services;

   appmenu = setupMenu(nstr);
   srvmenu = setupMenu(sstr);

   aitm = [[NSMenuItem alloc] initWithTitle:astr
   action:@selector(about:) keyEquivalent:@];
   [aitm setTarget:menu_delegate];
   [aitm setTag:aID];
   [appmenu addItem:aitm];
   [appmenu addItem:[NSMenuItem separatorItem]];

   pitm = [[NSMenuItem alloc] initWithTitle:pstr
   action:@selector(preferences:) keyEquivalent:@,];
   [pitm setTarget:menu_delegate];
   [pitm setTag:pID];
   [appmenu addItem:pitm];
   [appmenu addItem:[NSMenuItem separatorItem]];

   sitm = [[NSMenuItem alloc] initWithTitle:sstr action:0  
keyEquivalent:@];

   [sitm setSubmenu:srvmenu];
   [appmenu addItem:sitm];
   [appmenu addItem:[NSMenuItem separatorItem]];

   itm = [[NSMenuItem alloc] initWithTitle:hstr
   action:@selector(hide:) keyEquivalent: @h];
   [itm setTarget:menu_delegate];
   [appmenu addItem:itm];

   itm = [[NSMenuItem alloc] initWithTitle: @Hide Others
   action:@selector(hideOtherApplications:)  
keyEquivalent:@];

   [itm setTarget:menu_delegate];
   [appmenu addItem:itm];

   itm = [[NSMenuItem alloc] initWithTitle: @Show All
   action:@selector(unhideAllApplications:)  
keyEquivalent:@];

   [itm setTarget:menu_delegate];
   [appmenu addItem:itm];
   [appmenu addItem:[NSMenuItem separatorItem]];

   itm = [[NSMenuItem alloc] initWithTitle:qstr
   action:@selector(terminate:) keyEquivalent:@q];
   [appmenu addItem:itm];

// Does this: [NSApp setAppleMenu:appmenu];

   [NSApp performSelector:@selector(setAppleMenu:)  
withObject:appmenu];

   [NSApp setServicesMenu:srvmenu];
}


NSMenu *setupMenu(NSString *title)// title shouldn't be Null
{
   NSMenu *men = [[NSMenu alloc] initWithTitle:title];
   [men setAutoenablesItems:NO];

   if (!menu_delegate)
   menu_delegate = [[myMenuDelegate alloc] init];

   [men setDelegate:menu_delegate];
   return men;
}


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Re: Objective 2.0 properties

2008-10-16 Thread Charles Steinman

--- On Thu, 10/16/08, Ignacio Enriquez [EMAIL PROTECTED] wrote:

 @interface Lesson : NSObject {
 NSString *lessonTitle;
 NSDate *referDate;
 NSNumber *lessonDuration;
 }
 @property (nonatomic, retain) NSString* lessonTitle;
 @property (nonatomic, retain) NSDate *referDate;
 @property (assign) NSNumber * lessonDuration;

Why is lessonDuration assign? That's begging for a crash. All three of these 
should be copy since the classes all conform to NSCopying.

 So the question is
 Inside Lesson.m when i want to call or refer lessonTitle
 what is the best?
 self.lessonTitle or just only lessonTitle? (note that is
 nonatomic, retain))

I prefer to always use accessors. It simplifies memory management if nothing 
else.

 I have been trying a lot of conbination and none of them
 result in
 compilation errors, but when I run the application it
 crashes.!
 So I would like to know the difference between
 self.property and just property

http://developer.apple.com/documentation/Cocoa/Conceptual/ObjectiveC/Articles/chapter_2_section_3.html#//apple_ref/doc/uid/TP30001163-CH11-SW17

Cheers,
Chuck

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Re: Hand-building an Application Menu

2008-10-16 Thread Russ


 Where do you add it to the main menu?

I'm trying to use NSApplication's setAppleMenu --- the application menu isn't 
visible as part of the main menu (the call is at the end of my routine, below). 
Note that I do a setMainMenu later in my startup sequence. My understanding is 
that OSX has it's own private NSMenu for the application and system menus, and 
combines the mainmenu supplied with those private submenus. So it seems to be a 
battle to get at the semi-private menus, which is a bit maddening.


On Oct 16, 2008, at 5:45 PM, Russ wrote:

 My menus are generated programmatically, not with a NIB (non- 
 negotiable). That works fine. I've been trying to get a correct  
 Application menu, though, without success after a wasted day. The  
 code I have is based on stuff I have found on the web and seems to  
 make sense in principle. It all runs, but the app menu remains  
 missing (the 1st time run) or incomplete (succeeding runs).  Code  
 follows, it gets called right after setting up the shared NSApp,  
 before starting the run loop. There are no error messages or  
 crashes---it is an expensive no-op.

 Thanks.

 void SetAppMenu(int aID, int pID, const char *appname)
 {
NSMenu *appmenu, *srvmenu;
NSString *nstr, *astr, *pstr, *hstr, *sstr, *qstr;
NSMenuItem *itm, *aitm, *pitm, *sitm;

if (!menu_delegate)
menu_delegate = [[myMenuDelegate alloc] init];

nstr = [NSString stringWithFormat:@%s, appname];
astr = [NSString stringWithFormat:@About %s, appname];
pstr = [NSString stringWithFormat:@Preferences%C,  
 (unichar)0x2026];
hstr = [NSString stringWithFormat:@Hide %s, appname];
qstr = [NSString stringWithFormat:@Quit %s, appname];
sstr = @Services;

appmenu = setupMenu(nstr);
srvmenu = setupMenu(sstr);

aitm = [[NSMenuItem alloc] initWithTitle:astr
action:@selector(about:) keyEquivalent:@];
[aitm setTarget:menu_delegate];
[aitm setTag:aID];
[appmenu addItem:aitm];
[appmenu addItem:[NSMenuItem separatorItem]];

pitm = [[NSMenuItem alloc] initWithTitle:pstr
action:@selector(preferences:) keyEquivalent:@,];
[pitm setTarget:menu_delegate];
[pitm setTag:pID];
[appmenu addItem:pitm];
[appmenu addItem:[NSMenuItem separatorItem]];

sitm = [[NSMenuItem alloc] initWithTitle:sstr action:0  
 keyEquivalent:@];
[sitm setSubmenu:srvmenu];
[appmenu addItem:sitm];
[appmenu addItem:[NSMenuItem separatorItem]];

itm = [[NSMenuItem alloc] initWithTitle:hstr
action:@selector(hide:) keyEquivalent: @h];
[itm setTarget:menu_delegate];
[appmenu addItem:itm];

itm = [[NSMenuItem alloc] initWithTitle: @Hide Others
action:@selector(hideOtherApplications:)  
 keyEquivalent:@];
[itm setTarget:menu_delegate];
[appmenu addItem:itm];

itm = [[NSMenuItem alloc] initWithTitle: @Show All
action:@selector(unhideAllApplications:)  
 keyEquivalent:@];
[itm setTarget:menu_delegate];
[appmenu addItem:itm];
[appmenu addItem:[NSMenuItem separatorItem]];

itm = [[NSMenuItem alloc] initWithTitle:qstr
action:@selector(terminate:) keyEquivalent:@q];
[appmenu addItem:itm];

 // Does this: [NSApp setAppleMenu:appmenu];

[NSApp performSelector:@selector(setAppleMenu:)  
 withObject:appmenu];
[NSApp setServicesMenu:srvmenu];
 }


 NSMenu *setupMenu(NSString *title)// title shouldn't be Null
 {
NSMenu *men = [[NSMenu alloc] initWithTitle:title];
[men setAutoenablesItems:NO];

if (!menu_delegate)
menu_delegate = [[myMenuDelegate alloc] init];

[men setDelegate:menu_delegate];
return men;
 }

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Re: Converting from HTML

2008-10-16 Thread Nathan Day


Try this

http://www.thinkmac.co.uk/blog/2005/05/removing-entities-from-html-in-cocoa.html 



On 17/10/2008, at 13:17 , Drarok Ithaqua wrote:

Hi all, i'm trying to find a way to convert an HTML-originated URL  
into one I can use in cocoa.


Example input: link type=application/rss+xml rel=alternate  
href=/search/uniqueamp;stuffamp;here /


I know the URL that this data is fetched from, so I can prefix that  
to achieve a full URL again, but I need to convert the amp;
into plain ampersands, but there could be all kinds of HTML  
characters in there. Is there a category on NSString out there I could

use for this?

I read somewhere that I could use an NSAttributedString and  
initWithHTML, but that leaves me with an empty string. I'm guessing  
because it's

inside a head tag? Not sure.

I'm also open to using something more intelligent than my current  
method of searching the string for link  to find the rss feed, if  
there's perhaps an
easier way that would also convert the HTML characters for me. Maybe  
webkit has something for me?


I look forward to your replies, and you have my thanks in advance.

- Drarok
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Nathan Day
[EMAIL PROTECTED]
http://homepage.mac.com/nathan_day/

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Re: Objective 2.0 properties