cocoa-bindings

I have a custom NSTextView implementation that automatically adjusts the font size so that the text fills the entire view. I overwrote didChangeText to call my font size adjustment method. Works great when the user is editing text, but didChangeText (and the delegate method textDidChange: ) are not called when the text view contents are set via bindings. The font adjustment code needs to run whenever the text is set/changes, not only when it's changed by the user. How can I detect all changes to the text in an NSTextView , even via bindings? Note: If there's a better way to have the text fill

I have a view-based NSTableView that is populated through bindings. My textFields & imageViews are bound to the NSTableCellView's objectValue's properties. If I want to have an edit/info button in my NSTableCellView: Who should be the target of the button's action? How would the target get the objectValue that is associated with the cell that the button is in? I'd ultimately like to show a popover/sheet based on the objectValue. Your controller class can be the target. To get the object value: - (IBAction)showPopover:(id)sender { NSButton *button = (NSButton *)sender; id representedObject = [

When I insert a new object in a Core Data managed object context and shortly after that try to find this new object in the NSArrayController (which is connect with the managedObjectContext through binding), I can't find it. I do the creation and search in one method. My question now. How long does it take for a new inserted object to show up in the NSArrayControllers arrangedObject array? Update: Here is the code for inserting and fetching the new objects NSEntityDescription *entity = [[[self managedObjectModel] entitiesByName] objectForKey:@"EntityName"]; NSManagedObject *object = [

I'm using Cocoa bindings (as in Objective-C on the Mac) to display a relative date value using a value transformer. That is, my NSValueTransformer subclass converts an NSDate instance to NSString to display relative dates like "3 seconds ago", "2 minutes ago", etc. As you can see, these displayed values gets outdated as time progresses and thus will need to be refreshed somehow. I know I'll need to use a timer and then force the bindings to update so that the value transformer gets re-executed and display the correct relative date. But the question is, how do I make these bindings to refresh

I'm trying to decide which path to take for developing my Snow Leopard app. First, I should preface with the obvious differences: NSTableView can have multiple columns of data for representing different parts of the same "element" of data (a row) where NSCollectionView can display a grid of data as well, but every row+column combo is its own element. For my purposes, assume I'm dealing with a single column. As far as I can tell, NSCollectionView items are NSView s which all must be of the same dimensions. Also, unlike NSTableView , collectionview items are copied to the NSCollectionView

I have spent more than a day on trying to find a simple example of how to use an NSObjectController for binding along with core data. All examples are of NSArrayControllers with NSTableView bindings. How would you setup a simple NSObjectController with core data to automatically save and fetch data? Lets say you want to bind an entity with a string attribute to a text field, how would you do this? Here are the basics in Interface builder. Drag over an nstextfield into a view (from the object library) Drag over a nsobjectcontroller (likewise) Open the bindings inspector. Option-Cmd-7 or View

I must be missing something simple, but I am having some trouble binding a tableView to an NSDictionaryController. Here is a model of my current scheme: TableViewColumn --bindsTo-->DictionaryController.arrangedObjects.(value or key) --bindsTo-->someClass.someClassMember.aDictionary. I've tested the tableView by adding an entry to aDictionary on init, which is displayed correctly. But when another method produces an object that is then added to aDictionary, the TableView doesn't seem to update or even know that aDictionary now has two entries. I've tried everything I can think of. I am not