Ross,
Thank you for filing the bug.
Indeed there is a bug in NSTextTab.
Fortunately, it only affects -tabStopType method. The actual instance
created works as a decimal tab.
Aki
On 2008/02/21, at 14:30, Ross Carter wrote:
I've filed a bug on this (5757951) but I hope there's a workaround.
The initializer for creating a NSTextTab of type
NSDecimalTabStopType is initWithAlignment:(NSTextAlignment)alignment
location:(CGFloat)location options:(NSDictionary *)options. There is
no NSTextAlignment for dec tabs, so you use NSRightTextAlignment,
and the initializer apparently figures out that you want a decimal
tab by looking in the options dictionary.
But usually I get a right-aligned textTab even though I've requested
a decimal-aligned textTab. Sometimes an incantation can help:
// Create an options dictionary to be used in creating a decimal
NSTextTab:
NSCharacterSet *charSet = [NSCharacterSet
characterSetWithCharactersInString:@"."];
NSDictionary *optionsDict = [NSDictionary
dictionaryWithObject:charSet
forKey:NSTabColumnTerminatorsAttributeName];
// try to create a decimal NSTextTab using that options dict:
NSTextTab *textTab1 = [[NSTextTab alloc]
initWithTextAlignment:NSRightTextAlignment
location:location
options:optionsDict];
NSLog(@"tabStopType is %i", [textTab1 tabStopType]);
// Doesn't work; tabStopType is 1 (right)
// Create and release a default decimal NSTextTab:
NSTextTab *dummyTab = [[NSTextTab alloc]
initWithType:NSDecimalTabStopType location:location];
[dummyTab release];
// Now try again to create the decimal NSTextTab using the same
options dict:
NSTextTab *textTab2 = [[NSTextTab alloc]
initWithTextAlignment:NSRightTextAlignment
location:location
options:optionsDict];
NSLog(@"tabStopType is %i", [textTab2 tabStopType]);
// It works; tabStopType is 3 (decimal)
but sometimes I get the right-aligned textTab no matter what.
Any ideas on a sure-fire way to initialize a decimal NSTextTab?
Ross
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