I have recently experienced some of these same issues.
You can check out the message:
http://lists.apple.com/archives/cocoa-dev/2009/Mar/msg00179.html
for what I was concerned with.
As best I can determine, a NSTextView relies upon a NSScrollView to
handle it's scrolling behavior. Unfortunately, there does not appear
to be any way to place a fieldEditor inside of a NSScrollView in order
to provide this behavior - but I haven't had that confirmed by anyone.
What I ended up doing is creating a NSTextView inside of a
NSScrollView on the fly and using that as my field editor.
Although, I suppose creating a NSTextField would have worked as
well...I may try switching to that as it would be less code.
On Mar 3, 2009, at 10:04 PM, Luke Evans wrote:
I've been trying to implement label editing a la Finder, and found
this useful so far:
http://www.cocoadev.com/index.pl?FieldEditorIssues
Essentially, this approach uses the regular NSTextView instance
served up by -[NSWindow fieldEditor:forObject], and recomputes the
size of that is required for the current text. You can then
position the frame of the text view according to taste. This works
great up to the point where I limit the size of the text view
reaches the maximum size for my "text area" (under the icon, like
Finder). What I'd like to have happen then is for the text to
scroll like a multiline NSTextField, so that the caret remains in
view, but instead the text view remains with its top lines visible,
and the caret disappears below along with any typed text, clipped by
the frame.
I'm beginning to think that I'm barking up the wrong tree hoping for
text scrolling behaviour to appear from NSTextView. I have no
enclosing scroll view at the moment (though I suppose I could have a
tiny one that has its scrollbar furniture turned off), and I see
that NSTextView is a rather different animal to NSTextField (that
owns a text field cell that in turn provides -setScrollable, which
is what I think I want). However, before I rip the current
fieldEditor/NSTextView stuff apart and try again with creating an
NSTextField on demand, I thought I'd seek a few simple answers:
- Is there any way to get NSTextView to have a text scrolling
behaviour intrinsically? Perhaps this is really only behaviour
produced by an object, like a cell, that wraps the field editor when
its hosted there.
- If this is a non-starter, is it best to create an NSTextField, or
would an NSTextFieldCell work somehow on its own?
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