cocoa

Scripting Bridge generates error creating a new playlist in iTunes on 10.5, but not 10.6

I'm having a problem with the Scripting Bridge framework in 10.5. Specifically, I use this code to create a new user playlist in iTunes: NSDictionary *propertiesDict = [NSDictionary dictionaryWithObject:@"playlistName" forKey:@"name"]; playlistToReturn = (iTunesUserPlaylist*)[[[iTunesApp classForScriptingClass:@"user playlist"] alloc] ...

Problem in print layout near page end

Hi all, I am facing some problem in print layout, below is the description of steps I followed and problem which I am facing: I have taken a custom view over which there are NSTextViews, NSTableViews arranged one below other. I am trying to calculate exact height of NSTextViews and NSTableViews depending upon content in them. Dependi...

Expanding all items of a NSOutlineView that loads data from a data source

First of all I'm new to cocoa development so I suppose I'm probably trying to do this the wrong way, but here goes: I have a NSOutlineView which loads the data from a NSOutlineViewDataSource imnplementation. I want all the items to be expanded after they are loaded, but i can't seem to find an event fired when the data has finished loadi...

NSNumberFormatter, how to remove blank spaces in currency symbol

I'm having some values that I need to format into a currency string. It seems that when using NSNumberFormatter to format an amount, the resulting currency string will contain one or more blank spaces. For instance using the following piece of code to format @"1000" into the European currency format will result in returning @"1,000,00 €...

How to create a run loop that only listens to performSelector:onThread: and GUI events?

I want to create a separate thread that runs its own window. Frankly, the documentation does not make sense to me. So I create an NSThread with a main function. I start the thread, create an NSAutoreleasePool, and run the run loop: // Global: BOOL shouldKeepRunning = YES; - (void)threadMain { NSAutoreleasePool *pool = [NSAutorelea...

how to ignore hotkeys in os x

Hi, do the Mac OS X APIs provide a method to ignore all systemwide hotkeys? I'm currently researching how to build a kiosk-mode like application. I searched the OS X Developer documentation and tried google (combinations of [cocoa, carbon, os x, ignore, global, hotkey, kiosk, event]), but nothing turned up yet. I know this has been d...

Why is my NSMutableArray returning nill?

I have a very simple task: add the contents of a textField to an NSMutableArray.The Problem is the array is returning nill. I believe that it has something to do with the fact that the array I'm using is declared as an instance variable. /* IBOutlet NSTextField *textField; IBOutlet NSTabView *tableView; IBOutlet NSButton *button; NS...

How does an NSTextField know that it's value has changed?

I have a textfield that can either be edited by hand, or set through another control. (It's a page number, so you can jump to page 16 by typing in 16, or you can page up and down with the next/prev buttons) I have the value of the text field bound to an int page variable. It seems to work correctly, when you type a page number in, it ju...

Generate a random alphanumeric string in cocoa

Hey there, I know this can't be that hard. I've searched, but I can't seem to find a simple solution. I want to call a method, pass it the length and have it generate a random alphanumeric string. Any ideas? Are there any utility libraries out there that may have a bunch of these types of functions? Thanks, Howie ...

How To Draw More Precise Lines using Core Graphics and CALayer

Hello I am having a hard time making this UI element look the way I want (see screenshot). Notice the image on the right--how the line width and darkness looks inconsistent compared to the image on the left (which happens to be a screen grab from safari) where the border width is more consistent. How does apple make their lines so perfec...

setting image of slider

Hi, How can i set an image to a circular slider, which is an object of NSSlider. I have called setImage: method, but does not work out. What could be the alternative approach to do so. ...

NSTextField enter to trigger action

I've been looking all over for a simple example of how to have an action (or button) be triggered when the enter key is hit in the text field. Should I subclass the text field? Would I need to set a delegate to call the action I need? Is there a way to catch the event in my main window controller class? If you could even just point me ...

Can I use Core Animation without CALayers?

Hello! Is it possible to use Core Animation to change something else than properties of CALayers? I’d like to use a simple property animation with easing to change a value on my model class. Something like this: CABasicAnimation* anim = [CABasicAnimation animation]; anim.keyPath = @"someProperty"; anim.fromValue = [NSNumber numberWithFl...

Core Data multi-threading

My app starts by presenting a tableview whose datasource is a Core Data SQLite store. When the app starts, a secondary thread with its own store controller and context is created to obtain updates from the web for data in the store. However, any resulting changes to the store are not notified to the fetchedresults controller (I presume b...

NSRunAlertPanel shows up behind the "active window"

I'm trying to put together a simple error reporting package. If my main program crashes, it saves a crashlog, then starts a reporter program. The reporter program asks the user if it can send the crash log to me, then does so. I'm using NSRunAlertPanel to create a basic message box. For some reason, that message box is showing up buried...

How do I run modals windows from code with cocoa?

Hi,everybody I`m trying to run a window as modal directly from the code. My program starts and a main NSWindows is showed.A thread still running to see if the user has a valid distribution. if he doesn't I need to run a modal.I mean, I have no buttons clicked in the interface.I've designed a NSWindow on the interface builder for a passw...

(ObjectiveC) How to get the reference count of an NSObject?

Is there a way to fetch the current reference count for an NSObject (i.e. NSString)? ...

NSTableView setting the sort column?

I have a NSTableView with multiple columns. clicking each of the columns sorts by the column like in iTunes. However when the tableview first loads the rows are unsorted and no tablecolumn is highlighted or displaying the up/down indicator image. I'm wondering if theres a simple way I can programmatically set the column the table is sort...

NSView -(void)keyDown in console program

I'm not getting the -(void)keyDown callback on my inherited NSOpenGLView (note that mouseMoved does not work either though I do setAcceptsMouseMovedEvents:YES, but that is not an issue yet). It implements - (BOOL)acceptsFirstResponder { return YES; } but still no luck. My knowledgeable friend implied that it might have something t...

Building a NSPredicate for a filter

Hi, Just wondering what the best way to build a NSPredicate is if some filters are optional? This is basically for a filter, so if some options aren't selected I don't to filter by them eg. If I have option1 and option2 set for the filter. NSPredicate* predicate = [NSPredicate predicateWithFormat:@"option1 = %@ AND option2 = %@] .......