I'm trying to use an NSFontPanel to allow the user to change an application-wide font setting. It's supposed to work something like this: the user clicks a button, a font panel pops up, they choose a font and a size, and their selection is persisted.
The following code shows the panel:
- (IBAction)showFontMenu:(id)sender {
NSFontManager *fontManager = [NSFontManager sharedFontManager];
[fontManager setDelegate:self];
NSFontPanel *fontPanel = [fontManager fontPanel:YES];
[fontPanel makeKeyAndOrderFront:sender];
}
The documentation seems to suggest that the changeFont:(id)sender method should be called when the font changes; this isn't happening in my case.
- (void)changeFont:(id)sender {
// blah
}
Any ideas on what I might be doing wrong?
include this:
[fontManager setTarget:self];
The object you've defined -changeFont:
on must the first responder or above it in the responder chain. You haven't specified where you've defined the method, but I assume it's on a controller object that is not in the responder chain.
NSFontManager
's delegate exists primarily to filter the fonts it supplies to the font panel via -fontManager:willIncludeFont:
.
As kperryua mentions, -changeFont:
is sent up the responder chain. The button that launches the font menu or its enclosing view might be a good place to put a responder for -changeFont:
.
You might find the Font Handling guide marginally more useful than the Font Panel guide.
The core problem is this line:
[fontPanel makeKeyAndOrderFront:sender];
By making the font panel the key window, it's got no idea where to send action messages like -changeFont: to.
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