On May 11, 2009, at 6:03 PM, Gunnar Proppe wrote:
Howdy Jon,
Thanks for the tips, I'll give that a try. The first suggestion
sounds close to where I was going to go, except I hadn't thought of
instantiating the view in the NIB file. Great idea.
Your alternative suggestion sounds interesting but I'm not sure I
understand it. Would I then set the class name in the Identity pane
of this pasted, plain NSView to my custom class?
Yes.
What's different about this plain NSView from the "custom view"
dragged from the library?
The "Custom View" has additional behavior beyond an NSView. One way
they are different is that when a custom view is instantiated from a
NIB file it receives the initWithFrame: message instead of
initWithCoder:.
Is this a bug in Interface Builder, or did I misread the linked
documentation?
This is a bug in Interface Builder.
Jon Hess
From the doc:
"The procedure for adding a custom view item is very similar to that
for a custom image item. (“Custom” in this context means any object
from the Interface Builder library as well as instances of a custom
NSView subclass.) Just drag any view object from the library onto
the Allowed Toolbar Items area. Click the item once and press
Command-1 to display the Attributes pane for the object as a toolbar
item; click again to edit the attributes of the item as itself. You
should modify the size of the custom view item in the Size pane of
the inspector, not directly. If you drag a Custom View object into
the allowed-items set, click it twice and set the name of the custom
NSView class in the Identity pane of the inspector (Command-6)."
Gunnar
----- Original Message ----
From: Jonathan Hess <jh...@apple.com>
To: Gunnar Proppe <toneclus...@yahoo.com>
Cc: cocoa-dev@lists.apple.com
Sent: Monday, May 11, 2009 4:35:49 PM
Subject: Re: NSToolbarItem with custom view in Interface Builder 3
(Leopard)
Hey Gunnar -
You won't be able to make this work with an instance of "custom
view" dragged
from the library. Here are a couple of suggestions for workarounds:
You could add an outlet to the toolbar item you'd like to use a
custom view
with, and then place the custom view at the top level of your NIB,
and also add
an outlet to it. In awakeFromNib, you could call setView: on the
toolbar item
with the correct view.
Alternatively, you could use a view object that wasn't a custom
view. Interface
Builder doesn't provide a view object in the library that isn't a
specific
subclass or NSView, or a custom view, but you can get a hold of a
plain NSView
by copying and pasting one from someplace else. For example,
copying a window's
content view by using Interface Builder's outline view will get you
a vanilla
instance of NSView. Paste one into the top level of a document and
resize it to
a reasonable size, and and then you can drag it from the document
window into
the toolbar.
Good Luck -
Jon Hess
On May 9, 2009, at 11:36 AM, Gunnar Proppe wrote:
I followed the steps described here to set up a toolbar item with
a custom
view in Interface Builder:
http://developer.apple.com/documentation/Cocoa/Conceptual/Toolbars/Articles/ToolbarInIB.html
Unfortunately my custom view's drawRect is never called. I
verified that it
does get initialized. The toolbar item's min and max size are set
up properly.
Just to be safe I had my view conform to NSCoding but initWithCoder
and
ecodeWithCoder aren't called. I tried various springs and struts
settings with
no results.
Digging deeper, I subclassed NSToolbarItem and overrode setView
and setMinSize
so I could break on them. setMinSize is getting called with the
correct values.
Interestingly, setView gets called before my custom view is
initialized. I
assume this is the proxy NSView object. Then my custom view is
initialized
(initWithFrame) but the NSToolbarItem's setView isn't called again
with the new
view instance. I don't know if this is a bug -- maybe Cocoa does
some voodoo in
the swapping from the proxy NSView object to the custom view.
Standard views work fine: eg. NSButton and NSBox.
Has anyone successfully used IB to create toolbar items with
custom views?
Thanks,
Gunnar
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