I’ve been struggling with NSTableView for the last two days. All I want to do
is ensure the alternative “gray” highlight is used on a selection consistently
instead of the heavy blue. Here’s my code:
-(void) killBlue
{
NSInteger selectedRow = [_tableView selectedRow];
if ([_tableView selectedRow] != -1) //only call this if there is a
selection
{
NSTableRowView *myRowView = [_tableView rowViewAtRow:selectedRow
makeIfNecessary:NO];
[myRowView
setSelectionHighlightStyle:NSTableViewSelectionHighlightStyleRegular];
[myRowView setEmphasized:NO];
[_tableView
setSelectionHighlightStyle:NSTableViewSelectionHighlightStyleNone];
}
}
I’m calling this from three places:
1. In -tableViewSelectionDidChange: //to take care of user-initiated selection
changes
2. In -tabViewToggle //because the blue comes back when the TabView the
TableView is embedded in is switched back and forth
and
3 and in -(void)applicationDidBecomeActive:(NSNotification *)aNotification
//because the blue comes back when the app is switched in and out of frontmost
1 and 2 work fine. At first 3 only worked when the app was switched in an out
of focus with the cmd-tab app switcher keys, but not when mouse clicks were
used to change the frontmost app. To solve that problem, I also had to ensure
something else was firstResponder when the app was made frontmost.
I thought my troubles were over, until I discovered that despite those three
implementations, I **still** get the blue highlighting in a situation where a
row is highlighted (correctly appearing gray), then I click on any other app,
then click back on the highlighted row (rather than somewhere else in the
window) to make my app active again. Sure enough, there’s the blue. I’m
exhausted trying to think of all the ways to defeat this blue highlighting and
would appreciate some guidance.
I’ve seen SE posts suggesting subclassing NSTableRowView, but I don’t
understand why, since the property setEmphasized already exists in the parent
class and should work across the board (shouldn’t it??).
Any thoughts much appreciated.
Best
Phil
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