Actually, for what it's worth, I did just hit one snag. If you attempt to
edit the cell, the field editor inherits the white color! This makes it
pretty difficult to see what you're doing ;)
I have a custom field editor anyway and have lots of control over how the
edit process gets started, so it was no problem to force the field editor to
use the actual item color, but I figured this was worth mentioning, for the
archives if nothing else.
John Stiles wrote:
Six of one and a half dozen of the other? :)
Anyway, it looks like this does the trick:
([cell isHighlighted] && [[outlineView window] isKeyWindow] &&
[[outlineView window] firstResponder] == outlineView)
Not quite as clean and nice as "backgroundStyle" but it will have to do for
now :)
Ken Ferry wrote:
Also, I'd be pretty surprised if this actually showed up in perf
profiling. Do you mean 'heavyweight', or annoying? :-)
> but it seems a lot more heavyweight. You have to do:
>
> [[outlineView selectedRowIndexes] containsIndex:[outlineView
rowForItem:item]]
-Ken
On Mon, Feb 25, 2008 at 6:26 PM, Ken Ferry <email@hidden> wrote:
The pre-leopard code isn't pretty. The AppKit relnotes give the old
path while motivating the backgroundStyle API. I'm not sure if this
is 100% complete..
> Prior to Leopard, you may have noticed that text turns white in selected
table view rows. The
> mechanism that controlled this behavior, unfortunately, was arcane. The
table would set the
> highlight color of the cell to the alternateSelectedControlColor and set
the cell to be highlighted.
> The cell would then introspect its highlight color, and use white text if
the color was the
> alternateSelectedControlColor.
You probably have a constrained case, so it may suffice to check
-isHighlighted.
It'd be nice if you could use the Leopard API on Leopard or later, as
we might try to be a little bit more clever about when the text
actually turns white. Ideally the text wouldn't turn white if the
user's chosen selection color was sufficiently light. There's scope
for making that work in the backgroundStyle API.
-Ken
On Mon, Feb 25, 2008 at 5:12 PM, John Stiles <email@hidden> wrote:
> In my outline view, I'm using an NSTextFieldCell and setting the item's
> color via setTextColor:.
>
> This works fine, but for some colors, it's almost impossible to see when
> the item is selected. I'd like to always make the text white if the item
> is selected.
>
> In Leopard, I know I can use [cell backgroundStyle] ==
> NSBackgroundStyleDark to check this, but I was wondering if there is any
> easy check for Tiger and below. I can actually go through the
> machinations of asking the outline view if the item is selected, but it
> seems a lot more heavyweight. You have to do:
>
> [[outlineView selectedRowIndexes] containsIndex:[outlineView
> rowForItem:item]]
>
> And I'm not sure just how fast that is, but it can't be as fast as just
> asking the cell "are you selected" :)
>
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