On 28 jun 2009, at 13.05, Kyle Sluder wrote:
On Sun, Jun 28, 2009 at 12:59 PM, Phil Hystad<phys...@mac.com> wrote:
(1) The default Cocoa Application created by Xcode creates a simple
application with a single window and a default menu (among other
things I
presume). This window has a content view which I am assuming is an
instance
of NSView but I actually can't find out if that is true.
Therefore, are
there any inspectors that tell me the actual class used for a
particular
view. The class identity part of the Inspector for the content view
suggests has a drop down that allows me to choose various classes
but there
must be a specific class that is used already. How do I find this?
Don't worry about it. You shouldn't muck with the content view of a
window; the window treats it specially. It's only exposed as an
NSView, regardless of what subclass it is actually an instance of.
Just add your views as children of it.
That's not correct. It's perfectly valid to replace the content view
with any other view of your choosing. You're probably right in
pointing out that it's not commonly done though. For a very simple
window with some sort of custom view that provides all drawing, that
would be a fine thing to do though.
You should be able to set the class of view used in the identity
inspector, or replace the content view of the window at runtime, just
like for all other views.
(2) I am trying to understand how the window sizing features of
the view
inspector relate to the window itself. As best as I can tell, none
of the
actual window sizing features for the content view are usable as
they do not
really seem to do anything. Is this true? Is it possibly the case
that the
content view, being bound to the window frame, is sized
automatically based
on the window size?
Yes that's correct. The content view is always resized to fit the
content area of the window.
(3) Again, on the window sizing inspector, if I resize the window
using the
resize thingy in the lower right hand corner, I can see the updated
pixel
size in the inspector, but only after I stop resizing. If I want
to resize
to a particular dimension, say 300 x 225 (or, whatever), it is a
try this,
check, try that check, and so on. Is there a way to enable the
size values
of height and width to resize dynamically as I change the window
size? I
have looked all over the documentation and tried a lot of things
but nothing
seems to make the behavior different.
Don't think so. File a radar: http://bugreport.apple.com You can
also enter the values directly in the text fields.
Good suggestion. Note though, that if you already know the dimension
you want to use, it's probably easier to set it using the numeric
input fields in the inspector directly. Also note that if you hold
down the Command key while resizing in IB it will resize smoothly, and
not snap to guides. This often makes pixel resizing / alignment a lot
easier.
(4) And, finally, on the window sizing inspector, in the part called
"autosizing" when I click on the content view (remember, it is
empty, just
as created by Xcode), there is an animated image that expands and
contracts
in size and I have absolutely no idea why it is animated or what
it means.
Any help?
Read up about autosizing of subviews here:
<http://developer.apple.com/documentation/Cocoa/Conceptual/CocoaViewsGuide/WorkingWithAViewHierarchy/WorkingWithAViewHierarchy.html#//apple_ref/doc/uid/TP40002978-CH4-SW12
>
j o a r
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