Truncating the string value of an NSTextField, in a Panther compatible way.
Truncating the string value of an NSTextField, in a Panther compatible way.
- Subject: Truncating the string value of an NSTextField, in a Panther compatible way.
- From: Sean Murphy <email@hidden>
- Date: Thu, 28 Sep 2006 19:23:30 -0400
Hey Everyone,
I'm trying to determine the best way to enable an NSTextField to
truncate its stringValue (using one of the NSLineBreakMode options)
if that value is too long and won't entirely fit into the field's
frame. My text field has been sized in Interface Builder so that it
will shrink as the window around it is made smaller.
Before you hit reply: I realize this is very simple on 10.4 or later,
with a message to a cell's setWraps:YES and setLineBreakMode:. IB
also allows both of these attributes to be set easily.
I'm in need of a solution that will work on 10.3.9+, however. The
setLineBreakMode: method was added to the AppKit in Tiger <http://
developer.apple.com/releasenotes/Cocoa/AppKit.html>. The archives
and other usual resources, for the most part, only turned up ideas
about adding this behavior to text inside an NSTableView.
Using an attributed string seemed like a good way to make this
happen. So, I created one with its NSParagraphStyleAttributeName set
to a style with my desired line breaking mode. Then, I just called
setAttributedStringValue: on the NSTextField. This didn't work,
though, and I then tried changing the setWraps attribute of the text
field in case that was the problem. The text field does handle
string attributions correctly (such as fonts) but seems to ignore the
paragraph style's line break mode.
For reference, Apple has a sample code listing in an article about
truncating strings, <http://developer.apple.com/documentation/Cocoa/
Conceptual/Rulers/Tasks/TruncatingStrings.html>, which is very
similar to mine.
Is a subclass of NSTextField or NSTextFieldCell required to
accomplish this, since handing it an attributed string doesn't seem
to be enough? (Or am I missing something really simple - I hate when
that happens!)
Thanks for your help,
Sean
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