> I must confess that I made the mistake of calculating the size of the text using the attributed string, but I did *not* assign the attributed string to the text layer, but instead I assigned the orig. plain string. That way, the text layer must have used a different font for rendering the text, different from the font that CTFramesetterSuggestFrameSizeWithConstraints() used (as specified in the attributed string). Argh.
So, for the record, in case other people might have a similar problem some time
in the future, too,
I am enclosing my current version of the code below.
And thanks again! Your suggestions kept me experimenting.
Best regards, Gabriel
Encl.:
NSFont * font = [NSFont fontWithName: @"Andale Mono" size: fontSize_ ];
if ( ! font )
[self logMessage: @"Could not find font Andale Mono!" asError: YES];
NSMutableParagraphStyle * paragraphStyle = [[NSMutableParagraphStyle alloc]
init];
paragraphStyle.lineBreakMode = NSLineBreakByClipping;
NSColor *color = [NSColor whiteColor];
NSDictionary * attrsDictionary = [NSDictionary dictionaryWithObjectsAndKeys:
font, NSFontAttributeName,
color, NSForegroundColorAttributeName,
paragraphStyle,
NSParagraphStyleAttributeName,
nil];
NSAttributedString * mesg_attrstring = [[NSAttributedString alloc]
initWithString: mesg
attributes: attrsDictionary];
textLayer_.string = mesg_attrstring;
textLayer_.fontSize = fontSize_; // not
sure this is actually needed
CTFramesetterRef framesetter = CTFramesetterCreateWithAttributedString(
(__bridge CFAttributedStringRef) mesg_attrstring );
CFRange mesg_string_range;
CGSize string_rect = CTFramesetterSuggestFrameSizeWithConstraints(
framesetter, CFRangeMake(0,0), NULL, drawRect_.size, & mesg_string_range );
textLayer_.bounds = CGRectMake( 0.0, 0.0, string_rect.width,
string_rect.height );
textLayer_.shadowPath = CGPathCreateWithRect( textLayer_.bounds, NULL );
// set drop shadow
[textLayer_ setNeedsDisplay];
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