newbie core data question

My managed classes need non-standard persistent attributes, such as CGPoint. Possibly, I'll need other C structs or enums as well. The Core Data Programming Guide section about non-standard persistent attributes (link below) says there are two ways to go about this: transformable attributes

Re: Button width should accomodate localized string

On Mon, November 30, 2009 2:53:08 PM, Ricky Sharp rsh...@mac.com wrote: On Nov 29, 2009, at 9:52 AM, glenn andreas wrote: On Nov 29, 2009, at 9:38 AM, Symadept wrote: How can I scale my button or Label to be able to accomodate the localized string? That's the whole purpose of being able to

Re: NSWindow - how to resize it keeping aspect ratio?

On Thu, February 25, 2010 7:37:17 AM Alexander Bokovikov openwo...@uralweb.ru wrote: I don't understand what is the problem. Isn't my 422/674 ratio not a constant? What is a principal difference between it and yours 4/3? Just substitute my digits to whatever you need. You'll get just the

Re: Best practice example for a setup wizard?

Hi Ian, When you speak of a setup wizard, I think of those Windows-based apps with the Next and Back buttons. In my opinion, those wizards are very Windows-like, and therefore, annoying. ;) Have you considered displaying a regular dialog box that asks for the relevant information? Unless the

Re: Displaying contents of more than one NSManagedObjectContext?

Hi Rick, It is my limited understanding of core data that you can load as many managed object *models* as you want into a managed object context to obtain the union of all those models. You may want to look at the core data command line tutorial, which shows how to write a non-gui

Re: receiving events

Hi Ariel, I'm afraid it's a bit difficult to understand your question. Are you attempting to insert a full-screen view into the responder chain? Thanks, Soong - Original Message From: Ariel Feinerman arielfap...@gmail.com To: Cocoa Development cocoa-dev@lists.apple.com Sent: Mon,

Re: Question about garbage collection

I believe it will because there will be no pointer to each allocated string after a new one is allocated. Note that it won't be deallocated immediately. It will be deallocated when the collector runs. - Original Message From: Michael Abendroth pfrc.yao...@googlemail.com To:

Re: Core Data Document based app need some help

On Mon, January 11, 2010 12:11:34 PM, Quincey Morris quinceymor...@earthlink.net wrote: It looks like you should *not* be using NSComboBox for this. A combo box is a kind of text field, not a kind of menu. It looks like you want menus. Yeah. Try using a pop-up button instead. That's a kind

Re: Looking up a NSString constant at runtime

On Mon, Jan 4, 2010 at 4:56 PM, David Alter alterconsult...@gmail.com wrote: Is there a way to lookup what and NString constant is at runtime? Have you tried [NSDeviceResolution description] or [NSString stringWithString:NSDeviceResolution] ? Soong

Re: GC memory leak - what is it?

On Mon, January 4, 2010 12:39:22 PM Bill Bumgarner b...@mac.com wrote: It isn't so much thinking of it as a reference that needs to be nil'd out as much as it is a need to properly disconnect a subgraph of objects from the live object graph in an application such that the subgraph is

Re: NSDocument, NSManagedObjectContext do Stuff in -dealloc, Cause Crash

Hi all, If it is true that the ONLY safe thing you can do in dealloc is release instance variables, then where else/how else are you supposed to implement a method that is guaranteed to be called upon an object's termination, so that you can do final cleanups, such as removing it as an

Re: Keyword @defs

James, What exactly is this @defs keyword supposed to do? -Soong - Original Message From: James Pengra pengr...@charter.net To: cocoa-dev@lists.apple.com Sent: Sun, November 29, 2009 4:07:11 PM Subject: Keyword @defs Consider the following situation I found in a Cocoa program to

Re: [SOLVED] CoreData/NSPersistentDocument initialization

, Soong - Original Message From: Jerry Krinock je...@ieee.org To: Cocoa Developers cocoa-dev@lists.apple.com Sent: Fri, November 20, 2009 11:07:18 PM Subject: Re: [SOLVED] CoreData/NSPersistentDocument initialization On 2009 Nov 20, at 12:04, Oftenwrong Soong wrote: However

CoreData/NSPersistentDocument initialization

Hi all, My document model is Core Data based. When a new document is created, I must initialize the model to contain several objects with default values. I followed Apple's Departments example:

Re: [SOLVED] CoreData/NSPersistentDocument initialization

they're blue and sometimes they're yellow. I can't explain any of this. If someone can, please enlighten me! Thanks, Soong - Original Message From: Oftenwrong Soong oftenwrongso...@yahoo.com To: cocoa-dev@lists.apple.com Sent: Fri, November 20, 2009 12:04:06 PM Subject: CoreData

NSArrayController question

Hi all, I have a very common UI layout: a Master/Detail view. The Master is a NSTableView bound via a NSArrayController to a NSMutableArray, with buttons for Add and Remove whose Target/Action is the NSArrayController's add and remove actions. The Detail box displays attributes of the

Re: NSArrayController question [Solved]

processing, and then calls NSArrayController's addObject. For future reference, when you think of subclassing framework classes, that's a sign that it's time for bed. :) Thanks, Soong - Original Message From: Oftenwrong Soong oftenwrongso...@yahoo.com To: cocoa-dev@lists.apple.com Sent

Trouble with initial position of NSScrollView

Hi all, My app's UI was swapping views into a NSBox (a la Hillegass's book). Now I decided to replace the NSBox with a NSScrollView. No big difference there. I only made three changes: In IB, I got rid of the NSBox and dropped a NSScrollView in its place. In my document controller class, I

avoiding spagetti code

Hi all, In the MVC style, I want to avoid connecting directly between a view and a model. However I have a custom NSView subclass that renders a graphical view of the model and therefore it needs information from the model. I think it is considered bad practice to put a pointer to the model

Re: GC crash due to being naughty

Hi Ben, Have you considered the so-called Flyweight design pattern? It is designed to solve the problem of having a zillion objects to allocate. It sounds like this pattern might prevent your having to play the dirty tricks that are causing you problems. In the frameworks, Flyweight is used,

Re: GC crash due to being naughty

Hi Ben, You say the crash occurs in this line: individuals[individualCount++] = individualsForPop[i]; The problem may be in the post-increment (individualCount++). IIRC, there is no agreed-upon compiler standard as to whether the post-increment will occur before or after the assignment.

Serial comm in Cocoa?

Hi All, What is the Cocoa-fied way to communicate via a serial port? Using a kext to support the Prolific PL2303 chip and a shell utility like cu, it is possible to communicate via many USB-based serial ports. (For those who need it, the kext is at sourceforge.net/projects/osx-pl2303.) I am

Re: Serial comm in Cocoa?

Thanks Louis... I'm studying the code right now. -Soong - Original Message From: Louis Demers louisdem...@mac.com To: Oftenwrong Soong oftenwrongso...@yahoo.com Sent: Thu, October 15, 2009 5:58:02 PM Subject: Re: Serial comm in Cocoa? I use 2 C routines I found on the net and adapted

Re: Efficient searching of an NSArray of NSDictionary

Hi all, IIUC, what you're saying is that NSPredicate is used as a filter. Is that correct? If so, is Predicate Editor (in IB) related in some way? And if so, what is it supposed to do? Honestly I could never understand the docs on this particular control. :) Thanks, Soong On Sept 29, 2009

document-based application

Hi All, In my doc-based app, I need to initially display a startup window instead of a new empty document. Its function would be somewhat akin to that of the Template Chooser that comes up when you launch Pages. I've scoured the texts about the document architecture but cannot find pointers

NSUserDefaults

Hi all, Why does NSUserDefaults provide method stringForKey but not a method setString:forKey (akin to setBool:forKey, setFloat:forKey, etc.)? This does not seem symmetric. I'm using setObject:forKey when saving a NSString to the defaults database. Is this correct? Thanks, Soong

Re: NSSplitView resizing

On Wednesday, August 26, 2009 8:22:24 PM, Brandon Walkin bwal...@gmail.com wrote: This can be done completely in IB if you use BWToolkit. http://brandonwalkin.com/bwtoolkit/ Demo video: http://brandonwalkin.com/blog/videos/iCalSplitView.mov Brandon Wow, that is a *really* impressive

NSSplitView resizing

Hi all, I have a window containing a NSSplitView. When the window is resized, both panes of the split view resize proportionally. I would like one pane to remain fixed while the other resizes. Xcode does this, as well as iCal and other apps. Is there a delegate method that does this or must I

IB connections with view swapping?

Hi all, My document-based app will use view swapping, allowing the user to navigate through multiple screens like a wizard of sorts. I am putting each view in a separate nib and using NSViewController. View swapping is working. Now I need to make connections between these views and my model.

NSOutlineView vertical text alignment

Hi all, I have a NSOutlineView. I want to use the small text size (by setting Text Field Cell Size to Small in Interface Builder). The disclosure triangle looks proper and is vertically centered in the row. However the text is too high in the cell. I would like it centered like the disclosure

IB connections - newbie question

Hi all, I am making a NSDocument based app. In the NIB for the document window, I need to create a connection to a global data object (think singleton). This global data is used when creating the document, but isn't part of the document. Normally I'd make a connection by dragging a NSObject