Why NSTextField only shows the first word - objective-c

Question

When I include an NSTextField to a view, the added data is not completely shown. When the same configuration is applied to an NSTextField added with the .xib the text is shown completely.
Here is the code:
// Generated programmatically
NSTextField *label = [[NSTextField alloc] initWithFrame:self.bounds];
[label setBezeled:NO];
[label setDrawsBackground:NO];
[label setEditable:NO];
[label setSelectable:NO];
label.alignment = NSCenterTextAlignment;
label.backgroundColor = [NSColor clearColor];
label.textColor = [NSColor redColor];
label.font = [NSFont boldSystemFontOfSize:16.f];
[label setStringValue:str];
[self addSubview:label];
NSSize s3 = [str sizeWithAttributes:#{NSFontAttributeName:label.font}];
NSLog(#"S3 size: %f", s3.width);
[label setFrameSize:s3];
And the result is this:
Black text is the label configured in xib file. White text is the label created in xib file and configured programmatically. Red text is the label created and configured programmatically
Any idea?
The code is available here

Answer 1

Using NSString's sizeWithAttributes: only calculates the size of the text string itself. An NSTextField and its NSTextFieldCell also require some room themselves to handle their part of the drawing. So when you set the cell size to the size of the text alone, it's too small for the cell to draw all of the text and so the text is truncated.
Instead of trying to measure the size of the text yourself, you might try:
[label setStringValue:str];
[label sizeToFit];
[label setNeedsDisplay:YES];
NSTextField inherits NSControl's sizeToFit method which will automatically resize the text field to the appropriate size.