Re: How to display the information in the columns of the table view?

[Alexander Spohr]

Compile as debug.
Run and look at the console in Xcode.

Try
[tableRecordsArray addObject:infoDictionary]
instead of

[tableRecordsArray insertObject:infoDictionary  atIndex:row+i];



Tell us what tableRecordsArray is and how you allocate it.

atze

ps. signing what Graham Cox said.


Am 25.07.2009 um 15:56 schrieb Bright:


Hi all,
   In my application, I want to drag the file into the table view.  
At the same time, display the basic information in the columns of  
the table view.
   Now, I got the basic information of the file and saved it in a  
NSDictionary object.The code is :theInfoDictionary  
=[NSDictionarydictionaryWithObjectsAndKeys:[filePath  
lastPathComponent], @"name",[filePath pathExtension], @"extension",  
modDate, @"modifiedDate",nil];
 In the "- (BOOL)tableView: acceptDrop: row: dropOperation:" method,  
I tried to insert the information Dictionary into the  Array use the  
code "[tableRecordsArray insertObject:infoDictionary  atIndex:row 
+i];".
But when I drop the file into the table view, the app exited  
immediately. But I do not know how to realize it.
  Note: The enclosure is the code of this application. I wish  
someone can find out the bug and amend it for me. Thank you.

 Any help greatly appreciated.
 Brightplayer.zip>___


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Multiple keyboard shortcuts for the same menu command

[Oleg Krupnov]

I'd like the "Go Back" command in my app to be triggered by both Cmd+[
and Cmd+<- (left arrow) keyboard shortcuts. How do I do that?

I am aware of the [NSMenuItem isAlternate] but it only works if the
"keyboard equivalents" are the same and only the modifiers differ,
whereas in my case the opposite is the case: the modifiers are the
same and the keyboard equivalents are different.

Is there a way to do it, desirably without much hassle (invisible
buttons, Carbon, etc.)?

Thanks!
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Re:Re: How to display the information in the columns of the table view?

[Bright]

>Try

>[tableRecordsArray addObject:infoDictionary]
>instead of
>> [tableRecordsArray insertObject:infoDictionary  atIndex:row+i];
>
>Tell us what tableRecordsArray is and how you allocate it.

 I have tried the replacement, it does not work.
The tableRecordsArray the NSArray object for conserve the dragged files to the 
table view.
I allocate it in the controller class's -awakeFromNib method.
   The enclosure is the code of Contoller.m  class . There is the  what the 
tableRecordsArray? is in detail.
Thanks a lot.

myController.rtf
Description: Binary data
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Re: How to display the information in the columns of the table view?

[Andrew Farmer]

The crash you're seeing is almost certainly occuring because you  
aren't retaining infoDictionary correctly.

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Re: Multiple keyboard shortcuts for the same menu command

[Тимофей Даньшин]

Well, you could have two different menu items doing the same thing and  
having the two shortcuts.

On Jul 27, 2009, at 11:38 AM, Oleg Krupnov wrote:


I'd like the "Go Back" command in my app to be triggered by both Cmd+[
and Cmd+<- (left arrow) keyboard shortcuts. How do I do that?

I am aware of the [NSMenuItem isAlternate] but it only works if the
"keyboard equivalents" are the same and only the modifiers differ,
whereas in my case the opposite is the case: the modifiers are the
same and the keyboard equivalents are different.

Is there a way to do it, desirably without much hassle (invisible
buttons, Carbon, etc.)?

Thanks!
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Dictionary with enum keys?

[Debajit Adhikary]

I need to create a dictionary/hashmap where the

   - Keys are enums
   - Values are some subclass of NSObject


NSDictionary won't work here (enums don't conform to NSCopying).

I could perhaps use a CFDictionaryRef here, but I'd like to know if is there
any other way to achieve this.
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Re: Cocoa Document-Based App v. Windows MDI App

[Aaron Burghardt]

On Jul 27, 2009, at 12:50 AM, David Blanton wrote:


I think I'll use:

The Mac frameworks just don't support that approach. Sorry. I could  
re-implement MDI on the Mac, but it would be about a man-year's  
work. Do you want me to do that?"


To add to that argument, you might list some of the details that would  
be affected.  For example, you may/would break the behavior of the  
Window menu to switch between, or even be aware of, your different  
windows.


Another argument: In the 90's, Microsoft tried to make Office more  
neutral by making the Mac version look/feel like the Windows version  
(Word 6/Excel 5).  It was poorly received, MS took the lesson and  
separated their Mac development into a more autonomous group, then  
proceeded to deliver products that were much better received.  An old  
review of Mac Office 98 should offer documentation of this  
philosophical change, and it persists to this day.


One last argument:  Ask them to consider what they would think if the  
tables were turned and you asked them to change their Windows apps to  
put the menu bar at the top of the screen.


Good luck,

Aaron



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Re: Dictionary with enum keys?

[Jean-Daniel Dupas]

Le 27 juil. 09 à 10:48, Debajit Adhikary a écrit :


I need to create a dictionary/hashmap where the

  - Keys are enums
  - Values are some subclass of NSObject


NSDictionary won't work here (enums don't conform to NSCopying).

I could perhaps use a CFDictionaryRef here, but I'd like to know if  
is there

any other way to achieve this.


NSMapTable using NSIntegerMapKeyCallBack. (The C API is recommanded  
when working with something else than object)


But CFDictionary is perfectly valid too.



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Re: Cocoa Document-Based App v. Windows MDI App

[Jean-Daniel Dupas]

Le 27 juil. 09 à 10:49, Aaron Burghardt a écrit :



On Jul 27, 2009, at 12:50 AM, David Blanton wrote:


I think I'll use:

The Mac frameworks just don't support that approach. Sorry. I could  
re-implement MDI on the Mac, but it would be about a man-year's  
work. Do you want me to do that?"


To add to that argument, you might list some of the details that  
would be affected.  For example, you may/would break the behavior of  
the Window menu to switch between, or even be aware of, your  
different windows.




And more important, you will break Exposé and Spaces (it would not be  
possible to put windows on many spaces).



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Creating an installer for KEXT

[Shraddha Karwan]

Hi,

I have a Kernel extension. I am using Package Maker Version 3.0.3 (174). I
need Root Authentication for installing the KEXT in the
/System/Library/Extension directory.
The package maker tutorials on Apple's site refer to some older version of
Package Maker which consists of a Root Authentication check box in the
Contents pane. But the version which I have contains an Admin authentication
check box. I want the "root" user access for loading the KEXT. How do I
achieve this?

-- 
Regards,
Shraddha Karwan
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Re: Creating an installer for KEXT

[I. Savant]

On Jul 27, 2009, at 7:06 AM, Shraddha Karwan wrote:

I have a Kernel extension. I am using Package Maker Version 3.0.3  
(174). I

need Root Authentication for installing the KEXT in the
/System/Library/Extension directory.


  This is best posted to the xcode-users list (Package Maker is part  
of Xcode Tools) ... it isn't specific to Cocoa.


--
I.S.


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Re: How to display the information in the columns ...... is OK

[Bright]

>The crash you're seeing is almost certainly occuring because you 

>aren't retaining infoDictionary correctly.

Haha. You are right. I added the "[infoDictionary retain];" at the end of 
the info code fragement.
At the same time, I modified  other code correspondingly. It is OK now. 
 Thank you.  Thank you for everyone's help
Bright
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Re: Rotating image

[Dragos Ionel]

No need to release an image created using the imageNamed.

Dragos


On Sun, Jul 26, 2009 at 4:00 AM, Agha Khan  wrote:

> HI:
> I have an image which works fine.
> UIImage *img = [UIImage imageNamed:@"background.png"];
> [img drawAtPoint:CGPointMake(0,0)];
> [img release];
>
> Now suppose I want to rotate that image at 90 degree. Is there an easy way
> to accomplish this task?
>
> Best regards
> Agha
>
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Re: How to display the file's basic information in the columns of

[Scott Ribe]

Debugging the application is better than finding the crash report anyway.

Now that you know where it's crashing, there is of course nothing at all
wrong with putting an NSDictionary into an NSArray. You have a memory error
elsewhere that is the root cause of the crash. I have 2 suggestions:

- Show more of your code, at least from the allocation of theRecordsArray
and infoDictionary until the crash;

- Review the basic memory management rules to try to figure out where you
didn't follow them:



Note that I'm assuming the simple case and most likely cause--if you're
doing anything like using threads then you'll need to say so ;-)

-- 
Scott Ribe
scott_r...@killerbytes.com
http://www.killerbytes.com/
(303) 722-0567 voice


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Re: bypass NSApp

[Julien Isorce]

Hi,

I took all your remarks into account and I decided to
use the event dispatching system that uses the C third party program.

So I post an event which will be handled by the main loop of the C third
party program.
The attached callback intializes the nsapp and in the main thread.

To get ride of [NSapp run], I am also posting at regular time, an event and
the attached callback calls
[NSApp nextEventMatchingMask..], [NSApp sendEvent..].

It also resolves the problem of having several plugins like that (or loading
this same plugin several times)

The solution is ok but I am still convinced that the NSRunLoop could/should
get the ability to perform/handle the events that the NSApp is the only one
able to do.

Anyway, thx for all your answers/advises

Julien


2009/7/11 Stephen J. Butler 

> On Fri, Jul 10, 2009 at 6:50 PM, Julien Isorce
> wrote:
> > you are enterely right so then we are moving to the other solution:
> bypass
> > NSApp,
> > making a classic NSRunLoop but add to it the ability to perform/handle
> the
> > events that the NSApp usually is the only one able to do.
> >
> > I am open to any solution, even if it requires to have only one plugin
> which
> > has the "main thread" (=only one plugin based on Cocoa)
>
> I just took a break and went swimming, and while I was swimming I
> pondered the question, "What is REALLY Julien's problem?" I think I
> figured it out!
>
> I bet you ALREADY have a plugin written in GNUstep working on Linux or
> some other platform. You were hoping you could just recompile the
> plugin on OS X and it would work here too. But as we've been trying to
> tell you, there is no way this will ever work.
>
> But MacPorts lets you build GNUstep for OS X! So, if this is your
> situation, the way to make this all work is compile GNUstep for OS X,
> and link your app against it like you would in Linux.
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Re: [iPhone] Why can't a UITextField be its own delegate?

[Jonathan Hendry]

On Jul 25, 2009, at 16:14 PM, WT wrote:


Convoluted? I don't see it that way.

This particular text field needs to limit its number of characters  
to a given interval.


Seems like a good job for an NSFormatter attached to the field.
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Re: Views in CDBA's

[David Blanton]

3. Set the document view of the scroll view to this view.


This is why I was confused about "store Im this nib" above. When you  
drag a scroll view in from the Library, it has a custom view inside  
of it, set up as the scroll view's document view. You can use the  
Identity inspector to change it's class to that which you created in  
step 1.




I was thinking I had to set the view programatically.  Now I get it.

I want to thank everyone who offered suggestions, answers and wisdom.

This will be a Mac App (no pun intended) !

I know I'll be back but for now ... Ciao!

db




On Jul 27, 2009, at 12:47 AM, Kyle Sluder wrote:

On Jul 26, 2009, at 10:44 PM, David Blanton   
wrote:


I dragged a Scroll View from the LIbrary Objects Tab to the Window  
defined in MyDocument.xib.


All of my content to be displayed here will be bit maps.


Well that's a bit of a tautology considering it's all going to be  
rendered into the window's backing store, which is a bitmap.



So .. do I


I'm assuming you're describing a procedure here, not laying out a  
set of options? That's how I'm interpreting it.



1.  make a view, store in this nib.


"Make a view" is a bit vague. Again assuming, this time that you're  
referring to "subclass NSView." In that case yes, but I don't know  
what "store in this nib" means.



2. Render my bit map to this view.


Yes. Typically this will happen in -drawRect:. You will probably be  
drawing NSBitmapImageReps here.



3. Set the document view of the scroll view to this view.


This is why I was confused about "store Im this nib" above. When you  
drag a scroll view in from the Library, it has a custom view inside  
of it, set up as the scroll view's document view. You can use the  
Identity inspector to change it's class to that which you created in  
step 1.


--Kyle Sluder





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Re: Document-Based Application

[Scott Ribe]

Also remember that although "1 class per file" is usual practice, there's
nothing in the language that requires it.

If the cleanest solution turns out to be 22 very small and somewhat similar
classes, put them in 1 file (well ok, 2) instead of spreading them between
22 (well ok, 44) files.

-- 
Scott Ribe
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NSTextView - "Image Editing"?

[Frank D. Engel, Jr.]

Hi,

In Leopard, there is an option to enable "Image Editing" in an  
NSTextView.  I was hoping that meant I could pop up an "Image Edit"  
panel, as in an IKImageView, but that doesn't seem to be the case?


What does that option do, and is there any easy way that I could use  
the "Image Edit" panel within an NSTextView?


I can't seem to find that anywhere, but Pages, for example, seems to  
do something very similar to that...



Thank you!

---
Frank D. Engel, Jr.  

$ ln -s /usr/share/kjvbible /usr/manual
$ true | cat /usr/manual | grep "John 3:16"
John 3:16 For God so loved the world, that he gave his only begotten  
Son, that whosoever believeth in him should not perish, but have  
everlasting life.

$


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Re: NSTextView - "Image Editing"?

[Douglas Davidson]

On Jul 27, 2009, at 8:57 AM, Frank D. Engel, Jr. wrote:

In Leopard, there is an option to enable "Image Editing" in an  
NSTextView.  I was hoping that meant I could pop up an "Image Edit"  
panel, as in an IKImageView, but that doesn't seem to be the case?


What does that option do, and is there any easy way that I could use  
the "Image Edit" panel within an NSTextView?


This option is advisory for attachments; unfortunately the attachment  
classes do not yet implement this functionality, so if you want to pop  
up a panel you would need to do it yourself.


Douglas Davidson

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Re: Search Item in the Application menu missing in Other languages

[Arun]

Hi  Peter,

selector(showHelp:) is the default action that gets called when we click on
the Help -> showHelp option.
Looks like you did not undersatnd the question correctly.
The Hep menu in english contains a Search menu item in English. If you
change the Operating System language, Search menu item
disappears. Is there any way in which we can get the Search menu item under
Help Menu in all the languages?

Thanks
Arun KA




On Sat, Jul 25, 2009 at 4:33 AM, Peter Ammon  wrote:

>
> On Jul 24, 2009, at 11:22 AM, Arun wrote:
>
>  Hi All,
>>
>> I have a cocoa application which is localized in multiple languages.
>> My application uses default Menu's like File, Edit, View, etc.,
>> When the language is set to English in the System Preferences ->
>> International -> languages, Under the Help menu there is an item called
>> "Search".
>> But if the language is changed to french, German or Japanese and
>> application
>> is launched, the same "Search" item under Help menu is missing.
>> Is there anything that is missing or not configured in my application for
>> which my application is behaving like this?
>>
>> Thanks
>> Arun
>>
>
> Hi Arun,
>
> Leopard has some heuristics for determining which menu is the Help menu.
>  The simplest way to make sure it gets identified correctly in all languages
> is to include a menu item with the default Help action, which is
> @selector(showHelp:).
>
> Hope this, well, helps,
> -Peter
>
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Pop-up Panels?

[Frank D. Engel, Jr.]

I want to create something like an NSPopUpButton, but instead of a  
menu coming from it, I'd like to display a custom panel that acts like  
a pop-up menu: it would be a selection interface, but not a simple  
menu; if the user clicks outside of it, it would just disappear and  
nothing would change, etc...  like pop-up calculators and calendars in  
some programs...


I'm sure things like this are done often enough, but all of the search  
terms I'm coming up with are giving me sites that show how to change  
the appearance of the button itself, not what gets popped up.


Can someone point me to something that might help with this?


Thank you!


---
Frank D. Engel, Jr.  

$ ln -s /usr/share/kjvbible /usr/manual
$ true | cat /usr/manual | grep "John 3:16"
John 3:16 For God so loved the world, that he gave his only begotten  
Son, that whosoever believeth in him should not perish, but have  
everlasting life.

$


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Re: NSString -componentsSeparatedByString: line break

[Chase Meadors]

Thanks guys, except now I'm having a new problem. My array of lines is  
now containing empty strings that actually report a length of zero.  
This would be fine, except when I try to filter the array to get rid  
of these empty lines,


[array filterUsingPredicate:[NSCompoundPredicate  
notPredicateWithSubpredicate:[NSPredicate predicateWithFormat:@"SELF  
LIKE %@", @""]]];


this code has no affect. These empty strings have a length of 0 so  
they would have to be just empty strings. Other filtering predicates  
work fine. Is this a problem with the predicate?


On Jul 26, 2009, at 9:57 PM, Rob Keniger wrote:



On 27/07/2009, at 12:23 PM, Adam R. Maxwell wrote:



On Jul 26, 2009, at 7:11 PM, Greg Guerin wrote:


Chase Meadors wrote:

If the length of this mystery string is 1 and it's not a space,  
what is it???


Use -characterAtIndex:0 and print the returned unichar using the  
"%x" format.


Another sometimes-handy trick is to create a mutable copy and call  
CFStringTransform with kCFStringTransformToUnicodeName.



You should also look at -getLineStart:end:contentsEnd:forRange: if  
you're parsing lines of text, as it takes into account a variety of  
possible line endings, not just \n.


--
Rob Keniger



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iTunes DB Change Notifications?

[Brad Gibbs]

I've looked through the docs and Googled, but may not be looking for  
the right terms.


Are there change notifications for the iTunes database?  I'd like to  
have an iTunes client on a different machine on the local network be  
notified of changes, rather than having to poll and reload the  
database regularly.


Thanks.

Brad
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Re: Pop-up Panels?

[I. Savant]

On Jul 27, 2009, at 1:35 PM, Frank D. Engel, Jr. wrote:

I want to create something like an NSPopUpButton, but instead of a  
menu coming from it, I'd like to display a custom panel that acts  
like a pop-up menu: it would be a selection interface, but not a  
simple menu; if the user clicks outside of it, it would just  
disappear and nothing would change, etc...  like pop-up calculators  
and calendars in some programs...


  You'd want a button that stays down when the view is displayed  
(like a popup). You'd want a view in which to display your complicated  
UI. For this, you'd need a borderless (or custom-drawn) window to  
position over the control's host window in which to display your  
custom view.


  There are examples of both online. If you have more specific  
questions, post them (in other words, "what have you tried", and  
"break it down").



I'm sure things like this are done often enough, but all of the  
search terms I'm coming up with are giving me sites that show how to  
change the appearance of the button itself, not what gets popped up.




  I recall someone coming up with something like this (a popup- 
calendar-date-chooser control of some kind). Perhaps you could learn  
by example if you found it.


--
I.S.


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Re: iTunes DB Change Notifications?

[I. Savant]

On Jul 27, 2009, at 1:38 PM, Brad Gibbs wrote:

I've looked through the docs and Googled, but may not be looking for  
the right terms.


Are there change notifications for the iTunes database?  I'd like to  
have an iTunes client on a different machine on the local network be  
notified of changes, rather than having to poll and reload the  
database regularly.


  Short answer: No.

  Long answer: You can get around this, but you won't get  
instantaneous notifications. iTunes maintains an XML PLIST  
representation of the database for third-party developers to latch  
onto for reading only. Using FSEvents for Leopard and above (or  
UKKQueue for Tiger and before), you can watch this file for changes  
and respond accordingly.


  Caveat: This doesn't work on network volumes. You'll have to have  
the local machine monitoring for the changes and notifying any  
interested parties (clients) over the network.


--
I.S.


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Re: iTunes DB Change Notifications?

[Kyle Sluder]

On Jul 27, 2009, at 10:38 AM, Brad Gibbs  wrote:

Are there change notifications for the iTunes database?  I'd like to  
have an iTunes client on a different machine on the local network be  
notified of changes, rather than having to poll and reload the  
database regularly.


Nope. No public ones, anyway. You could watch the iTunes DB files with  
FSEvents or kqueue and refresh over Apple events when you detect a  
change.


File a Radar, too.

--Kyle Sluder



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NSTableView - strange behaviour after cell text color assignment

[Alexander Bokovikov]

Hi, All,

I'm trying to color my table's rows depending on some value, returning  
from a function like this:


int GetState(int rowIndex);

I've searched around the Net and the only clear way I've found is to  
set my AppController, as a tableView delegate and respond to the message


- (void)tableView:(NSTableView *)aTableView
  willDisplayCell:(id)aCell
   forTableColumn:(NSTableColumn *)aTableColumn
  row:(int)rowIndex;

I've created this method as the next:

if (rowIndex == selRow)
color = [NSColor selectedTextColor];
else
switch (st = GetState(rowIndex)) {
case 1 : { color = [NSColor colorWithCalibratedRed:0

 green:0

  blue:0.5

 alpha:1.0]; break; }
case 2 : { color = [NSColor colorWithCalibratedRed:0

 green:0.5

  blue:0

 alpha:1.0]; break; }
case 3 : { color = [NSColor colorWithCalibratedRed:0.5

 green:0

  blue:0

 alpha:1.0]; break; }
}
[aCell  setTextColor:color];

I've got a strange effect: a new row is selected OK, when I change  
selection in the tableview, but the row, which was selected, remains  
being drawn with the same selected color unless reloadData will  
appear. Therefore, changing selection quickly I can change color of  
many rows to selected color, unless update will come. Selection bar  
itself looks OK, and selected row background and text color changes  
immediately, but how to update the row, which was previously selected?  
I believed it will be done by my delegate method. It looks like this  
method is called at some not appropriate time. Is there a solution?


Thanks.



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Re: NSString -componentsSeparatedByString: line break

[Shawn Erickson]

On Mon, Jul 27, 2009 at 10:36 AM, Chase Meadors wrote:
> Thanks guys, except now I'm having a new problem.

Are you using -getLineStart:end:contentsEnd:forRange:? If not you
should switch to use that and see if you still have an issue.

http://developer.apple.com/documentation/Cocoa/Reference/Foundation/Classes/NSString_Class/Reference/NSString.html#//apple_ref/occ/instm/NSString/getLineStart:end:contentsEnd:forRange:

-Shawn
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UITextView not updating

[Development]

I asked about this earlier and no one seemed the know the answer.
I have a UITextView inside of a scroll view. The textview is offscreen  
when the main view loads. So it does not update when data is loaded in  
to it. Thus when ever the scroll it is inside moves I use a standard  
scrollview delegate method to detect the scroll. Then execute the code  
below.


if(scrollView == miniScroll){
for (UIView *childView in onlinePeopleView.subviews)
{   
[childView setNeedsDisplay];
}
}

This does not work. setNeedDisplay does not cause it to update and  
display the text inside of the textview. What can I do to cause the  
text to be displayed? Everything else is set up correctly in IB and  
the text size is unaltered. So I know its none of that. If I NSLog()  
the contents of the text view it shows that the textview is infact  
imbued with the correct text it simply will not display. How can I  
force a textview to update it's display?



Thanks
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Re: UITextView not updating

[Luke the Hiesterman]

It would be easier to answer this with a sample project.

Luke

On Jul 27, 2009, at 11:10 AM, Development wrote:


I asked about this earlier and no one seemed the know the answer.
I have a UITextView inside of a scroll view. The textview is  
offscreen when the main view loads. So it does not update when data  
is loaded in to it. Thus when ever the scroll it is inside moves I  
use a standard scrollview delegate method to detect the scroll. Then  
execute the code below.


if(scrollView == miniScroll){
for (UIView *childView in onlinePeopleView.subviews)
{   
[childView setNeedsDisplay];
}
}

This does not work. setNeedDisplay does not cause it to update and  
display the text inside of the textview. What can I do to cause the  
text to be displayed? Everything else is set up correctly in IB and  
the text size is unaltered. So I know its none of that. If I NSLog()  
the contents of the text view it shows that the textview is infact  
imbued with the correct text it simply will not display. How can I  
force a textview to update it's display?



Thanks
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Re: NSString -componentsSeparatedByString: line break

[Chase Meadors]

Nevermind though, it WAS an empty string, and I just changed the  
predicate to @"SELF == %@", @""

I didn't think the == was for strings but it worked.

On Jul 27, 2009, at 1:03 PM, Shawn Erickson wrote:

On Mon, Jul 27, 2009 at 10:36 AM, Chase Meadors  
wrote:

Thanks guys, except now I'm having a new problem.


Are you using -getLineStart:end:contentsEnd:forRange:? If not you
should switch to use that and see if you still have an issue.

http://developer.apple.com/documentation/Cocoa/Reference/Foundation/Classes/NSString_Class/Reference/NSString.html#/ 
/apple_ref/occ/instm/NSString/getLineStart:end:contentsEnd:forRange:


-Shawn


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Re: iTunes DB Change Notifications?

[Brad Gibbs]

If Apple is providing the XML file for third party developer use, but  
they don't provide any way to monitor changes, does that mean that  
their intention is for third party apps to regularly refresh from the  
XML file?  Isn't this an extremely expensive operation?  Particularly  
when moving data across a network?


How about interjecting a Core Data app, running on the machine that  
maintains the XML file?  That machine could monitor the XML file with  
FSEvents and maintain a CD DB that mirrors the XML file, adding new  
objects or fetching, updating and then saving changes, as  
appropriate.  On the context's WillSaveNotification, it could alert  
its clients, sending just the updated information.


If this works, the question is, would it be better to maintain  
mirrored CD DB's on each of the clients (clients will be a mix of Macs  
and iPhones), and update those databases when changes occur?  Or,  
should they query the server when they need information?  The client  
UI's would be much more responsive if the clients each maintained  
their own databases, particularly if I wanted to get cover art to the  
clients, but maintenance gets more complicated.




On Jul 27, 2009, at 10:48 AM, Kyle Sluder wrote:


On Jul 27, 2009, at 10:38 AM, Brad Gibbs  wrote:

Are there change notifications for the iTunes database?  I'd like  
to have an iTunes client on a different machine on the local  
network be notified of changes, rather than having to poll and  
reload the database regularly.


Nope. No public ones, anyway. You could watch the iTunes DB files  
with FSEvents or kqueue and refresh over Apple events when you  
detect a change.


File a Radar, too.

--Kyle Sluder




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Re: iTunes DB Change Notifications?

[slasktrattena...@gmail.com]

On Mon, Jul 27, 2009 at 7:46 PM, I. Savant wrote:
> On Jul 27, 2009, at 1:38 PM, Brad Gibbs wrote:
>
>> I've looked through the docs and Googled, but may not be looking for the
>> right terms.
>>
>> Are there change notifications for the iTunes database?  I'd like to have
>> an iTunes client on a different machine on the local network be notified of
>> changes, rather than having to poll and reload the database regularly.
>
>  Short answer: No.
>

Short answer: YES. A distributed notification is posted every time the
the database is updated. Add an observer for notifications named
"com.apple.iTunes.sourceSaved" posted by object
"com.apple.iTunes.sources".

Good luck.
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Re: iTunes DB Change Notifications?

[I. Savant]

On Jul 27, 2009, at 3:09 PM, slasktrattena...@gmail.com wrote:


Short answer: YES. A distributed notification is posted every time the
the database is updated. Add an observer for notifications named
"com.apple.iTunes.sourceSaved" posted by object
"com.apple.iTunes.sources".


  Is this documented / public? If not, fair warning: this string  
could change at any time without notice and your product will stop  
working.


--
I.S.


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Re: Search Item in the Application menu missing in Other languages

[Peter Ammon]

Arun, my advice is the same.  To identify which menu (if any) should  
get the Search field, AppKit examines the actions of the items in that  
menu.  If a menu contains an item with the showHelp: action, then  
AppKit concludes that menu is the Help menu, and it will get the  
Search field.


-Peter

On Jul 27, 2009, at 9:54 AM, Arun wrote:


Hi  Peter,

selector(showHelp:) is the default action that gets called when we  
click on the Help -> showHelp option.

Looks like you did not undersatnd the question correctly.
The Hep menu in english contains a Search menu item in English. If  
you change the Operating System language, Search menu item
disappears. Is there any way in which we can get the Search menu  
item under Help Menu in all the languages?


Thanks
Arun KA




On Sat, Jul 25, 2009 at 4:33 AM, Peter Ammon  wrote:

On Jul 24, 2009, at 11:22 AM, Arun wrote:

Hi All,

I have a cocoa application which is localized in multiple languages.
My application uses default Menu's like File, Edit, View, etc.,
When the language is set to English in the System Preferences ->
International -> languages, Under the Help menu there is an item  
called

"Search".
But if the language is changed to french, German or Japanese and  
application

is launched, the same "Search" item under Help menu is missing.
Is there anything that is missing or not configured in my  
application for

which my application is behaving like this?

Thanks
Arun

Hi Arun,

Leopard has some heuristics for determining which menu is the Help  
menu.  The simplest way to make sure it gets identified correctly in  
all languages is to include a menu item with the default Help  
action, which is @selector(showHelp:).


Hope this, well, helps,
-Peter



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Re: NSTableView - strange behaviour after cell text color assignment

[Alexander Bokovikov]

Replying to myself:


- (void)tableView:(NSTableView *)aTableView
  willDisplayCell:(id)aCell
   forTableColumn:(NSTableColumn *)aTableColumn
  row:(int)rowIndex;


The function above works perfectly, but the problem reason was in the  
incorrect receiving of the selected row index. I wrongly assigned it,  
as a global variable, within a function, which updated my table data  
on timer. therefore the selected row index value was changed on timer,  
but not on real selection change. why didn't 5 set the assignment in  
the tableViewSelected: action, going from tableView? Really, I did it.  
But unfortunately this action raises on the mouse clicks only.  
Keyboard clicks are passing by this action.


Fortunately I've found a solution, that really works. I've registered  
an observer for NSTableViewSelectionDidChangeNotification  
notification, and now every change of selection is processed.


I believe, the question is closed.

Thanks.
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Re: Creating an installer for KEXT

[Fritz Anderson]

On 27 Jul 2009, at 6:52 AM, I. Savant wrote:

 This is best posted to the xcode-users list (Package Maker is part  
of Xcode Tools) ... it isn't specific to Cocoa.


Better yet, installer-dev, which is specifically for PackageMaker and  
Installer.app. PackageMaker is... um... subtle. You need a specialty  
list.


— F

--
Fritz Anderson -- Xcode 3 Unleashed: Now in its second printing -- 


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Re: [iPhone] Why can't a UITextField be its own delegate?

[Fritz Anderson]

On 27 Jul 2009, at 9:58 AM, Jonathan Hendry wrote:


Seems like a good job for an NSFormatter attached to the field.


Can you attach an NSFormatter to a UITextField? The only mention in  
the docs of attaching formatters to cells says right up front that the  
subject does not apply to iPhone OS.


— F

--
Fritz Anderson -- Xcode 3 Unleashed: Now in its second printing -- 


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Re: Dictionary with enum keys?

[Ken Thomases]

On Jul 27, 2009, at 3:52 AM, Jean-Daniel Dupas wrote:


Le 27 juil. 09 à 10:48, Debajit Adhikary a écrit :


I need to create a dictionary/hashmap where the

 - Keys are enums
 - Values are some subclass of NSObject


NSDictionary won't work here (enums don't conform to NSCopying).

I could perhaps use a CFDictionaryRef here, but I'd like to know if  
is there

any other way to achieve this.


NSMapTable using NSIntegerMapKeyCallBack. (The C API is recommanded  
when working with something else than object)


But CFDictionary is perfectly valid too.


You can also use NSDictionary with NSNumber keys.  You'll just have to  
cast your enum values to one of the integer types.


Cheers,
Ken

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NSTableView cell editing begin / end notifications?

[Alexander Bokovikov]

Hi, All,

In my app I have a table, populated by some periodic procedure,  
working on a timer. At the same time I need to add a cell editing  
capability. But periodic updating procedure calls [tableView  
reloadData], which resets the cell editor, if it is active.


Therefore I need to stop this update procedure for a time, when cell  
editor is active. I've searched over the Net, but can't find any  
simple solution or description, how to catch editor appearance and  
hiding. Could anybody point me any sample or at least what  
notifications should I use? I don't like the idea to subclass a cell  
editor, but of course I'll do it (though don't know how to do it yet)  
if there will no other simpler solutions.


Thanks.
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How to set the string and integer value of an NSButtonCell using NSOutilneView

[Korei Klein]

I'm implementing an NSOutlineViewDataSource object which will be the 
data source of an NSOutlineView.

The NSOutlineView displays its data in NSButtonCell s.

The value displayed in an NSButtonCell is both an integer, and a string.
The delegate method which I am implementing 
outlineView:objectValueForTableColumn:byItem, however, allows me to 
return only one value to the NSOutlineView.


Is it possible for my implementation of 
outlineView:objectValueForTableColumn:byItem to set both the string 
value and the integer value of the NSButtonCell?



Also, how do I determine the index of the column which is the second 
argument of outlineView:objectValueForTableColumn:byItem.

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NSXMLDocument and schema validation (Not finding schema document?)

[Leif Harrison]

Has anyone had success using NSXMLDocument to validate XML using an  
XML Schema document?  I can parse and process my XML file fine as long  
as I don't validate, but when I call validateAndReturnError: I'm  
getting back the error "xmlSchemaParse: could not load ''.


As far as I can tell, the schema URL in my XML document is fine (I can  
access it using Safari), and I've validated the same XML document  
using the same schema URL using XML Nanny.  So...I can't figure out  
why NSXMLDocument can't find my schema.  Heck, I've even grabbed the  
schema URL from the NSXMLDocument root element (by getting the  
attribute "xsi:schemaLocation") and checked that I can access the URL  
directly using NSString stringWithContentsOfURL:.


Does NSXMLDocument actually use the URL specified via  
xsi:schemaLocation, or do I need to actually put the schema document  
somewhere else?


- Leif Harrison
  rexfe...@catsreach.org
  l...@ubermind.com
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nil there not here

[David Blanton]

I create a CGImageRef and store it
When I get around to using it, it is nil

My code is below ... fire away, please!


#import "MyDocumentView.h"

@interface MyDocument : NSDocument
{
MyDocumentView* _myDocumentView;
}
@end


- (id)init
{
self = [super init];
if (self) {

// Add your subclass-specific initialization here.
// If an error occurs here, send a [self release] message and  
return nil.


_myDocumentView = [[MyDocumentView alloc] init];
[_myDocumentView retain];

}
return self;
}


- (BOOL)readFromData:(NSData *)data ofType:(NSString *)typeName error: 
(NSError **)outError


	context = CGBitmapContextCreate (bitmap.m_array, bitmap.m_pixelsx,  
bitmap.m_pixelsy, 8, bitmap.m_pixelsx * 4, colorSpace, 	 
kCGImageAlphaNoneSkipFirst|kCGBitmapByteOrder32Host);	

CGImageRelease(_myDocumentView->_cgImageRef);
_myDocumentView->_cgImageRef =  CGBitmapContextCreateImage (context);
CGImageRetain(_myDocumentView->_cgImageRef); 
CGContextRelease(context);
CGColorSpaceRelease(colorSpace);

at this point _myDocumentView->_cgImageRef is not nil



@interface MyDocumentView : NSView {
@public
CGImageRef  _cgImageRef;
}

@end

@implementation MyDocumentView

- (void)drawRect:(NSRect)dirtyRect {

if(_cgImageRef)  HERE _cgImageRef is nil
{
		NSGraphicsContext *graphicsContext = [NSGraphicsContext  
currentContext];

CGContextRef context = (CGContextRef)[graphicsContext 
graphicsPort];
CGRect r;
		r = CGRectMake(dirtyRect.origin.x  , dirtyRect.origin.y ,  
dirtyRect.size.width, dirtyRect.size.width);	

CGContextDrawImage(context, r, _cgImageRef);
}
}

@end

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Re: How to set the string and integer value of an NSButtonCell using NSOutilneView

[Chase Meadors]

Well, according to the documentation, an NSButtonCell's object value  
(and all interpretations thereof) correspond to the state of the  
button (on, off, or mixed). You want to set this as well as set the  
title of the button. Unlike NSBrowser, NSOutlineView's data source  
methods don't provide direct access to the cell, it only asks you for  
the object value.


It's a bit of a pain, but if you want the button state AND the title  
of the button to be affected by object value, you could subclass  
NSButtonCell and override -setObjectValue:. THEN, in the datasource  
methods, you could pass a dictionary containing an int and a string.  
Then do this:


- (void)setObjectValue:(id)object {

[super setObjectValue:[object valueForKey:@"buttonState"]];

[self setTitle:[object valueForKey:@"buttonTitle"]];

}

Getting controls to USE your custom cell can be icky (NSBrowser ack!),  
but I don't have much experience with NSOutlineView. If you have  
trouble with that, just reply and ask on the list. You should be able  
to just call -setCellClass:[MyCustomCell class] on your outline view.


On Jul 27, 2009, at 4:17 PM, Korei Klein wrote:

I'm implementing an NSOutlineViewDataSource object which will be the  
data source of an NSOutlineView.

The NSOutlineView displays its data in NSButtonCell s.

The value displayed in an NSButtonCell is both an integer, and a  
string.
The delegate method which I am implementing  
outlineView:objectValueForTableColumn:byItem, however, allows me to  
return only one value to the NSOutlineView.


Is it possible for my implementation of  
outlineView:objectValueForTableColumn:byItem to set both the string  
value and the integer value of the NSButtonCell?



Also, how do I determine the index of the column which is the second  
argument of outlineView:objectValueForTableColumn:byItem.

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Re: [iPhone] Why can't a UITextField be its own delegate?

[WT]

On Jul 26, 2009, at 4:16 AM, Greg Guerin wrote:


WT wrote:

It seems I'll have to opt for having a regular UITextField and a  
custom class whose sole purpose is to provide a delegate that does  
the common work. As Kyle suggested, I may need to make that a  
superclass and derive additional delegates to perform extra work  
after the common task.


As previously noted, you could also give the common-task delegate  
its own delegate.  Then you get the advantages of delegation, it's  
just one level away from the UITextField's direct delegate.


More generally, you could implement the Chain Of Responsibility  
pattern in the UITextField's direct delegate (the principal  
delegate), so any number of other secondary delegates could  
contribute to the overall task, in chain-priority order, and  
according to which selectors a secondary delegate implements.  Since  
any secondary delegate could also be the principal of its own chain,  
you have the potential for a tree of delegates.


Yes, after careful consideration, the Chain of Responsibility is the  
approach I went with, and it's working great. Thanks for the suggestion.


Wagner
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Re: nil there not here

[Greg Guerin]

David Blanton wrote:


_myDocumentView = [[MyDocumentView alloc] init];
[_myDocumentView retain];


This is over-retaining _myDocumentView.  You called alloc/init, so  
you already own the instance.  If you retain it again, you're not  
gaining anything.  Unless you're doing the extra retain because  
you're over-releasing somewhere else.  Then the extra retain is  
hiding the symptom of the over-release bug.



Regarding the rest of your code, is it possible for -drawRect to be  
called before readFromData has been called and returned?  I note this  
in particular because drawRect is basically a callback rather than  
something you directly invoke.


Is MyDocumentView being added to a view hierarchy before readFromData  
has been invoked?


And is there a reason readFromData isn't a method of MyDocumentView?   
It seems odd to be manipulating another object's ivars directly from  
some other class.


  -- GG

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Re: nil there not here More Info

[David Blanton]

I just noticed that the object I allocate is not the one whose  
drawRect is being called ... I am confused ... what other object is  
there !


On Jul 27, 2009, at 3:44 PM, David Blanton wrote:


I create a CGImageRef and store it
When I get around to using it, it is nil

My code is below ... fire away, please!


#import "MyDocumentView.h"

@interface MyDocument : NSDocument
{
MyDocumentView* _myDocumentView;
}
@end


- (id)init
{
   self = [super init];
   if (self) {

   // Add your subclass-specific initialization here.
   // If an error occurs here, send a [self release] message and  
return nil.


_myDocumentView = [[MyDocumentView alloc] init];
[_myDocumentView retain];

   }
   return self;
}


- (BOOL)readFromData:(NSData *)data ofType:(NSString *)typeName  
error:(NSError **)outError


	context = CGBitmapContextCreate (bitmap.m_array, bitmap.m_pixelsx,  
bitmap.m_pixelsy, 8, bitmap.m_pixelsx * 4, colorSpace, 	 
kCGImageAlphaNoneSkipFirst|kCGBitmapByteOrder32Host);	

CGImageRelease(_myDocumentView->_cgImageRef);
_myDocumentView->_cgImageRef =  CGBitmapContextCreateImage (context);
CGImageRetain(_myDocumentView->_cgImageRef); 
CGContextRelease(context);
CGColorSpaceRelease(colorSpace);

at this point _myDocumentView->_cgImageRef is not nil



@interface MyDocumentView : NSView {
@public
CGImageRef  _cgImageRef;
}

@end

@implementation MyDocumentView

- (void)drawRect:(NSRect)dirtyRect {

if(_cgImageRef)  HERE _cgImageRef is nil
{
		NSGraphicsContext *graphicsContext = [NSGraphicsContext  
currentContext];

CGContextRef context = (CGContextRef)[graphicsContext 
graphicsPort];
CGRect r;
		r = CGRectMake(dirtyRect.origin.x  , dirtyRect.origin.y ,  
dirtyRect.size.width, dirtyRect.size.width);	

CGContextDrawImage(context, r, _cgImageRef);
}
}

@end

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Re: [iPhone] Why can't a UITextField be its own delegate?

[WT]

On Jul 27, 2009, at 10:32 PM, Fritz Anderson wrote:


On 27 Jul 2009, at 9:58 AM, Jonathan Hendry wrote:


Seems like a good job for an NSFormatter attached to the field.


Can you attach an NSFormatter to a UITextField? The only mention in  
the docs of attaching formatters to cells says right up front that  
the subject does not apply to iPhone OS.


— F


That's the reason I had to code it (limiting the number of characters)  
myself. My understanding, like yours, was that you can't attach a  
formatter to a text field on the iPhone SDK.


Wagner

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Re: nil there not here

[Dave Carrigan]

On Jul 27, 2009, at 2:44 PM, David Blanton wrote:


_myDocumentView = [[MyDocumentView alloc] init];
[_myDocumentView retain];


You already own _myDocumentView by virtue of the fact that you used  
alloc/init, so this extra retain is going to lead to memory leaks  
unless you release twice in -dealloc (which obviously you don't want  
to do).


- (BOOL)readFromData:(NSData *)data ofType:(NSString *)typeName  
error:(NSError **)outError


	context = CGBitmapContextCreate (bitmap.m_array, bitmap.m_pixelsx,  
bitmap.m_pixelsy, 8, bitmap.m_pixelsx * 4, colorSpace, 	 
kCGImageAlphaNoneSkipFirst|kCGBitmapByteOrder32Host);	

CGImageRelease(_myDocumentView->_cgImageRef);
_myDocumentView->_cgImageRef =  CGBitmapContextCreateImage (context);
CGImageRetain(_myDocumentView->_cgImageRef); 
CGContextRelease(context);
CGColorSpaceRelease(colorSpace);


You are treating _myDocumentView as a pointer to a struct. Since you  
declared as _cgImageRef as @public, it will work, it completely  
defeats the goal of encapsulation in the language, so you should have  
a good reason for doing it. If you can't think of a good reason, then  
instead you should set up getter and setter methods for these members:


- (void)setImage:(CGImageRef)image
{
  CFRetain(image);
  CFRelease(_cgImageRef);
  _cgImageRef = image;
}

- (CGImageRef)image
{
  return _cgImageRef;
}

An even better design would probably be to not even create getters and  
setters and create a method in your view such as


- (BOOL)setImageFromData:(NSData*)data type:(NSString*)type error: 
(NSError**)error

{
   /* everything in -readFromData goes here
}

Then:

- (BOOL)readFromData:(NSData*)data ofType:(NSString*)typeName error: 
(NSError*)outError

{
   return [_myDocumentView setImageFromData:data type:typeName  
error:outError];

}

It's hard to say without knowing your architecture if that's the  
better design, but it is definitely better if your view is the only  
thing that uses the imageref, especially since it completely hides the  
fact that your view uses CGImages and you are now free to use anything  
else that comes along without affecting the rest of your design.


As to why your ivar becomes nil, that's hard to say without seeing  
your entire project. But I suspect that if you start using better  
encapsulation and other OO principals in your design, your problem  
will disappear.


Regards,

--
Dave Carrigan
d...@rudedog.org
Seattle, WA, USA



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Re: nil there not here More Info

[Scott Ribe]

> I just noticed that the object I allocate is not the one whose
> drawRect is being called ... I am confused ... what other object is
> there !

One defined in a nib file perhaps?

-- 
Scott Ribe
scott_r...@killerbytes.com
http://www.killerbytes.com/
(303) 722-0567 voice


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Re: UITextView not updating

[Info]

Hi,

I run into the same problem with an app for that I decided to set up  
my view controllers / views as singletons (and therefore to reuse them).


Views within a scroll view display their previous values if they  
become a new value assigned when they are scrolled off (screen or  
scroll view bounds - I can't tell).


A fix (very bad for performance) is to set up the view controller as a  
delegate for the scroll view and to do somethings like this:


-(void) viewDidScroll {
   myTextView.frame=myTextView.frame;
}

It's a bug in UIKit a I always wanted to file but didn't do...

Markus

On 27.07.2009, at 20:10, Development wrote:


I asked about this earlier and no one seemed the know the answer.
I have a UITextView inside of a scroll view. The textview is  
offscreen when the main view loads. So it does not update when data  
is loaded in to it. Thus when ever the scroll it is inside moves I  
use a standard scrollview delegate method to detect the scroll. Then  
execute the code below.


if(scrollView == miniScroll){
for (UIView *childView in onlinePeopleView.subviews)
{   
[childView setNeedsDisplay];
}
}

This does not work. setNeedDisplay does not cause it to update and  
display the text inside of the textview. What can I do to cause the  
text to be displayed? Everything else is set up correctly in IB and  
the text size is unaltered. So I know its none of that. If I NSLog()  
the contents of the text view it shows that the textview is infact  
imbued with the correct text it simply will not display. How can I  
force a textview to update it's display?



Thanks
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Re: nil there not here

[David Blanton]

- (BOOL)readFromData:(NSData*)data ofType:(NSString*)typeName error: 
(NSError*)outError

{
  return [_myDocumentView setImageFromData:data type:typeName  
error:outError];

}


Yes, I should do it as above and will. Thanks for the suggestion.

I guess a better way of stating the problem is :

What is the preferred method of associating a view with a document?   
This is the fundamental issue for me.


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Re: nil there not here

[Kyle Sluder]

On Mon, Jul 27, 2009 at 3:56 PM, David Blanton wrote:
> What is the preferred method of associating a view with a document?  This is
> the fundamental issue for me.

It's known as the Model-View-Controller paradigm.  Typically you
create some custom class known as a controller, which mediates between
a view and the model (document).

--Kyle Sluder
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Re: How to display the information in the columns of the table view?

[Paul M]

Hi all,
   In my application, I want to drag the file into the table view. At 
the same time, display the basic information in the columns of the 
table view.

...


Thanks for just wasting an hour and a half trying to recover from that 
stupid huge attachment!


I'm on dial-up - I have no choice, I live in a rural area.

When my email froze trying to dl the first message after I logged in, I 
thought it was rfelated to some other problems earlier in the day. 
After killing the connection and running a few tests, I found I was 
temporarily locked out of the apple list, presumably because it thought 
I still had an active connection.
Anyway it got worse from there but I'll bore you no longer, You caused 
me significant irritation, and prevented me from getting some emails I 
was waiting on.


Actually. I'm surprised that the list allows such stupid behaviour.


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Dynamic UI with scroll view

[Chase Meadors]

I'm writing an app where the number of controls in the UI is dependent  
on the amount of information to be entered. The scroll view  
programming guide is not helping either. The only experience I've had  
with scroll views is the ones that come with other views in IB.


If I'm thinking correctly, I can build a view in code (with copying  
some generic text fields/popup with correct settings in the nib) then  
set the documentView of the scroll view with this newly created view.  
But this: (the scroll view is an independent scroll view made in IB)


NSLog(@"%@", [scrollView documentView]); //outputs (null)

[scrollView setDocumentView:[[NSView alloc]  
initWithFrame:NSMakeRect(0, 0, 500, 500)]];


NSLog(@"%@", [scrollView documentView]); //outputs (null) again

Also, I'm not too clear on how the frame of this view should work.  
Should I just make it whatever height I need for all the controls and  
the scroll view will scroll it?


Thanks for any help.
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Re: NSString -componentsSeparatedByString: line break

[Kirk Kerekes]

How about:

[array filterUsingPredicate:[NSPredicate  
predicateWithFormat:@"SELF.length > 0"]];


"LIKE" is awfully fancy for the purpose.

On Jul 27, 2009, at 2:03 PM, cocoa-dev-requ...@lists.apple.com wrote:


Date: Mon, 27 Jul 2009 12:36:27 -0500
From: Chase Meadors 
Subject: Re: NSString -componentsSeparatedByString: line break
To: Cocoa-Dev List 
Message-ID: 
Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes

Thanks guys, except now I'm having a new problem. My array of lines is
now containing empty strings that actually report a length of zero.
This would be fine, except when I try to filter the array to get rid
of these empty lines,

[array filterUsingPredicate:[NSCompoundPredicate
notPredicateWithSubpredicate:[NSPredicate predicateWithFormat:@"SELF
LIKE %@", @""]]];

this code has no affect. These empty strings have a length of 0 so
they would have to be just empty strings. Other filtering predicates
work fine. Is this a problem with the predicate?


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NSString and regular expressions

[Rick Mann]

I need to do some regex searches on NSStrings, and use capturing  
groups. Looking online I found some discussions from 2003 referring to  
MOKit, which hasn't been touched since 2005, and seems to include a  
lot of stuff I don't care about. Other references to agkit suggest it  
doesn't support unicode.


All of this makes me wonder if there's not a better support in this  
day and age for regex? I'm surprised not to find it in NSString.


Recommendations on what I should use? Thanks!


--
Rick

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Re: NSString and regular expressions

[Dave DeLong]

RegexKit.  Without a doubt.

http://regexkit.sourceforge.net

I use it in about 75% of my projects.

Dave

On Jul 27, 2009, at 6:37 PM, Rick Mann wrote:

I need to do some regex searches on NSStrings, and use capturing  
groups. Looking online I found some discussions from 2003 referring  
to MOKit, which hasn't been touched since 2005, and seems to include  
a lot of stuff I don't care about. Other references to agkit suggest  
it doesn't support unicode.


All of this makes me wonder if there's not a better support in this  
day and age for regex? I'm surprised not to find it in NSString.


Recommendations on what I should use? Thanks!


--
Rick

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Re: NSString and regular expressions

[Rob Keniger]

On 28/07/2009, at 10:38 AM, Dave DeLong wrote:


RegexKit.  Without a doubt.

http://regexkit.sourceforge.net

I use it in about 75% of my projects.


RegexKit is very nice and extremely comprehensive, but it has quite a  
large footprint and is probably overkill for many uses.


Unfortunately, RegexKit Lite (the stripped-down version) uses the  
built-in ICU library which uses a syntax quite different to the PCRE  
that most people are used to.


You might want to look at AGRegex which is very compact (one class)  
and which uses PCRE:


http://colloquy.info/project/browser/trunk/Frameworks/AGRegex

--
Rob Keniger



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NSWindow reference remains null after window did load

[Daniel Child]

I have a master controller loading a window controller subclass, but  
for some reason, I cannot get a pointer to the window loaded in the  
XIB file. I've looked at every connection, and I've also tested the  
order by of method calls.


In the window controller's init:
[self window] yields nothing.

Likewise in awakeFromNib and windowDidLoad.

It's totally mysterious because I have practically identical setups in  
two other programs, the only difference being that they used nib files  
and this is xib. But from what I understand, that shouldn't matter.


For what it's worth, in the XIB file, the window outlet goes to File's  
Owner (the window controller subclass). The window contains a table,  
and (unsurprisingly) [myTable window] also yields nothing.


Eventually the window does load, but only in its basic nib-drawn form,  
ignoring all of the initialization that the controller is supposed to  
do except for two text fields, which do for some reason get initialized.


I've spent hours checking connections and stepping through code. Does  
anyone have a suggestion where I can look to track down this issue.


Thanks.
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Re: NSTableView - strange behaviour after cell text color assignment

[Graham Cox]

On 28/07/2009, at 5:51 AM, Alexander Bokovikov wrote:


I wrongly assigned it, as a global variable



Whenever you find yourself doing this, stop, look and figure out  
another way. It's almost invariably a sign of a bad design or flawed  
implementation.


--Graham


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Re: NSWindow reference remains null after window did load

[Graham Cox]

On 28/07/2009, at 12:39 PM, Daniel Child wrote:

I have a master controller loading a window controller subclass, but  
for some reason, I cannot get a pointer to the window loaded in the  
XIB file. I've looked at every connection, and I've also tested the  
order by of method calls.


In the window controller's init:
[self window] yields nothing.

Likewise in awakeFromNib and windowDidLoad.

It's totally mysterious because I have practically identical setups  
in two other programs, the only difference being that they used nib  
files and this is xib. But from what I understand, that shouldn't  
matter.


For what it's worth, in the XIB file, the window outlet goes to  
File's Owner (the window controller subclass). The window contains a  
table, and (unsurprisingly) [myTable window] also yields nothing.


If this is literally true, isn't this the problem? The window outlet  
of the controller should go to... ta-d!... the WINDOW. That is,  
the actual window, not its controller, or a view within it, but the  
NSWindow object.


--Graham


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Re: NSWindow reference remains null after window did load

[Randall Meadows]

On Jul 27, 2009, at 8:39 PM, Daniel Child wrote:

I have a master controller loading a window controller subclass, but  
for some reason, I cannot get a pointer to the window loaded in the  
XIB file. I've looked at every connection, and I've also tested the  
order by of method calls.


In the window controller's init:
[self window] yields nothing.

Likewise in awakeFromNib and windowDidLoad.

It's totally mysterious because I have practically identical setups  
in two other programs, the only difference being that they used nib  
files and this is xib. But from what I understand, that shouldn't  
matter.


For what it's worth, in the XIB file, the window outlet goes to  
File's Owner (the window controller subclass). The window contains a  
table, and (unsurprisingly) [myTable window] also yields nothing.


Eventually the window does load, but only in its basic nib-drawn  
form, ignoring all of the initialization that the controller is  
supposed to do except for two text fields, which do for some reason  
get initialized.


I've spent hours checking connections and stepping through code.  
Does anyone have a suggestion where I can look to track down this  
issue.


This came up in another chat I had today.  In that case, the window  
was not set to be visible at launch, so the system deferred actually  
loading it until it was ready to be shown.  Perhaps that's happening  
to you?

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Re: Dictionary with enum keys?

[Debajit Adhikary]

Thanks! The NSNumber approach is working fine :)

On Mon, Jul 27, 2009 at 1:35 PM, Ken Thomases  wrote:

> On Jul 27, 2009, at 3:52 AM, Jean-Daniel Dupas wrote:
>
>  Le 27 juil. 09 à 10:48, Debajit Adhikary a écrit :
>>
>>  I need to create a dictionary/hashmap where the
>>>
>>>  - Keys are enums
>>>  - Values are some subclass of NSObject
>>>
>>>
>>> NSDictionary won't work here (enums don't conform to NSCopying).
>>>
>>> I could perhaps use a CFDictionaryRef here, but I'd like to know if is
>>> there
>>> any other way to achieve this.
>>>
>>
>> NSMapTable using NSIntegerMapKeyCallBack. (The C API is recommanded when
>> working with something else than object)
>>
>> But CFDictionary is perfectly valid too.
>>
>
> You can also use NSDictionary with NSNumber keys.  You'll just have to cast
> your enum values to one of the integer types.
>
> Cheers,
> Ken
>
>
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Re: How to set the string and integer value of an NSButtonCell using NSOutilneView

[Graham Cox]

On 28/07/2009, at 7:17 AM, Korei Klein wrote:

Also, how do I determine the index of the column which is the second  
argument of outlineView:objectValueForTableColumn:byItem.



[[theOutlineView tableColumns] indexOfObject:theTableColumn];

You need to be wary of using the index though - it isn't fixed as the  
user can drag columns, so it's better whenever possible to use the  
table column object itself. It should have anything you want to know  
about the column.


--Graham


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