Re: Silly NSTextFieldCell tricks
Re: Silly NSTextFieldCell tricks
- Subject: Re: Silly NSTextFieldCell tricks
- From: Peter Ammon <email@hidden>
- Date: Thu, 31 Jan 2008 12:12:43 -0800
On Jan 31, 2008, at 11:56 AM, John Stiles wrote:
Peter Ammon wrote:
On Jan 31, 2008, at 11:27 AM, John Stiles wrote:
I've noticed that in table views, the NSTextFieldCell has the
ability to ever-so-slightly squash its contents horizontally, to
fit inside the table cell, before eventually giving up and
truncating them with ellipses.
Is there any way for me to programmatically do the same thing to
my own NSTextFieldCell?
As I'm typing this, suddenly I'm thinking "maybe I could fake it
by altering the cell's bounds while leaving the frame alone"… but
is there a better way? Changing the bounds would make the text
thinner, which isn't quite the same as squeezing the letters more
tightly together.
Hi John,
This is called "tightening" in the API, and it's enabled by
default on text fields (actually, on any control) when the line
break mode is one of the three truncation line break modes in
NSParagraphStyle.h. You can control the threshold between
tightening and truncation with the
setTighteningFactorForTruncation: method on NSMutableParagraphStyle.
Hope that helps,
-Peter
Cool!
Is there any way to enable this for an NSTextField in a window?
Someone off-list suggested using attributed strings to do this, but
is that the best way?
Attributed strings aren't necessary, and NSTextFields do this by
default. In IB, make an NSTextField and in the Inspector, set its
Line Breaks mode to Truncate Tail, and make it resize with the window.
Oh, it doesn't happen if the text field has key focus, so you could
add another text field to hold the key focus for testing. If you do
that, you should see this behavior.
-Peter
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