OK, many thanks for the tips Steve.
On 28 Jun 2009, at 19:07, Steve Christensen wrote:
On Jun 28, 2009, at 5:09 PM, Stephen Blinkhorn wrote:
I have just noticed that some standard Cocoa objects look very
different on 10.4 compared to 10.5. In particular NSPopUpMenu and
NSButton objects are being drawn as much larger controls on 10.4
(rounded rect style, mini size). I am creating xib files via IB on
Leopard.
There is no guarantee that standard views will adhere to a
particular look or size across OS versions. You can either create
multiple per-OS nibs that you load programmatically or a single
version that has appropriate spacing for the OS version you know
about.
Also, I am using some standard icons like NSUserGroup and such
which are not being displayed within NSButton at all on 10.4. I
can probably find these and add them into my bundle but it seems
curious.
That string constant for that icon is only defined in the 10.5 SDK
version of NSImage.h as
APPKIT_EXTERN NSString *const NSImageNameUserGroup
AVAILABLE_MAC_OS_X_VERSION_10_5_AND_LATER;
Thus I would not expect that the image (at least using that name) is
available on a system running Tiger.
I am testing on 10.4.6 which is the version of my install DVD so my
question is whether there is a minimum Tiger version that includes
Leopard compatibility for this kind of stuff? 10.4.9?
The minimum OS version that includes Leopard compatibility is, by
definition, 10.5.0. If you're using Leopard-only features —whether
classes, methods or resources— and you want to run on a Tiger
system, you'll need to provide an appropriate alternative or
gracefully downgrade the functionality you provide. For the case of
an icon, that may mean that you need to embed your own version; for
the case of code, you need a runtime check that does the right thing
for each OS version.
steve
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