NSTextFieldCell with multiple lines

Question

I need to show an NSTextFieldCell with multiple lines with a different format on each line.

Something like that:

Line 1: Title
Line 2: Description

I have subclassed NSTextFieldCell, but I do not know how to proceed with it.

Any ideas?

Answer 1

Firstly, this does not require a subclass of NSTextFieldCell , since, as a subclass of NSCell , NSTextFieldCell -setAttributedStringValue: inherited. The string you provided can be represented as NSAttributedString . The following code illustrates how you could achieve your desired text using a regular NSTextField .

MDAppController.h:

 @interface MDAppController : NSObject <NSApplicationDelegate> { IBOutlet NSWindow *window; IBOutlet NSTextField *textField; } @end 

MDAppController.m:

 @implementation MDAppController static NSDictionary *regularAttributes = nil; static NSDictionary *boldAttributes = nil; static NSDictionary *italicAttributes = nil; - (void)applicationDidFinishLaunching:(NSNotification *)aNotification { if (regularAttributes == nil) { regularAttributes = [[NSDictionary dictionaryWithObjectsAndKeys: [NSFont systemFontOfSize:[NSFont systemFontSize]],NSFontAttributeName, nil] retain]; boldAttributes = [[NSDictionary dictionaryWithObjectsAndKeys: [NSFont boldSystemFontOfSize:[NSFont systemFontSize]],NSFontAttributeName, nil] retain]; NSFont *regFont = [NSFont userFontOfSize:[NSFont systemFontSize]]; NSFontManager *fontManager = [NSFontManager sharedFontManager]; NSFont *oblique = [fontManager convertFont:regFont toHaveTrait:NSItalicFontMask]; italicAttributes = [[NSDictionary dictionaryWithObjectsAndKeys: oblique,NSFontAttributeName, nil] retain]; } NSString *string = @"Line 1: Title\nLine 2: Description"; NSMutableAttributedString *rString = [[[NSMutableAttributedString alloc] initWithString:string] autorelease]; [rString addAttributes:regularAttributes range:[string rangeOfString:@"Line 1: "]]; [rString addAttributes:regularAttributes range:[string rangeOfString:@"Line 2: "]]; [rString addAttributes:boldAttributes range:[string rangeOfString:@"Title"]]; [rString addAttributes:italicAttributes range:[string rangeOfString:@"Description"]]; [textField setAttributedStringValue:rString]; } @end 

The result is the following:

Now, depending on how you intend to use this text, you can implement the design in several ways. You can see if NSTextView work for you, not NSTextField ...

Answer 2

What is wrong with using NSTextView ?