objective c - NSTextFieldCell with Multiple Lines -

i need show nstextfieldcell multiple lines different format on each line.

something this:

line 1: title
line 2: description

i subclassed nstextfieldcell don't know how go on it.

any ideas?

first off, don't have subclass nstextfieldcell achieve this, since, subclass of nscell, nstextfieldcell inherits -setattributedstringvalue:. string provided can represented nsattributedstring. following code illustrates how achieve desired text ordinary 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 

this results in following:

now, depending on how intend text used, implement design in several different ways. may want whether nstextview might work rather nstextfield...