I am trying to determine the size of a piece of text using boundingRectWithSize.
The problem is that this method does not return the correct width.
(The height seems to be about right.)
Sometimes, the width is only a little bit too wide, sometimes it is much too
wide.
And I could not find a pattern, it is not just a linear factor.
Below is the code snippet that I use.
I already did considerable googling but could not find a solution for my
problem.
(Most posts say that I needed to use the correct options, so I included them,
to no avail.)
I would appreciate very much all kinds of pointers or suggestions.
Best regards, Gabriel
NSMutableString * mesg = NULL;
...
textLayer_.string = mesg;
textLayer_.fontSize = fontSize_;
NSStringDrawingContext * ctxt = [NSStringDrawingContext new];
ctxt.minimumScaleFactor = 1.0;
NSFont * font = [NSFont fontWithName: @"Andale Mono" size:
textLayer_.fontSize ];
NSMutableParagraphStyle * paragraphStyle = [[NSMutableParagraphStyle alloc]
init];
paragraphStyle.lineBreakMode = NSLineBreakByClipping;
NSDictionary * attrsDictionary = [NSDictionary dictionaryWithObjectsAndKeys:
font, NSFontAttributeName,
paragraphStyle,
NSParagraphStyleAttributeName, nil];
NSAttributedString * mesg_string = [[NSAttributedString alloc]
initWithString: mesg
attributes: attrsDictionary];
NSRect string_rect = CGRectIntegral( [mesg_string boundingRectWithSize:
drawRect_.size
options:
NSStringDrawingUsesLineFragmentOrigin |
//
NSStringDrawingUsesDeviceMetrics | // tried with and w/o
NSStringDrawingUsesFontLeading
context: ctxt ] );
string_rect.size.height += 0.2 * textLayer_.fontSize; // for the shadow
if ( string_rect.size.width < drawRect_.size.width )
string_rect.size.width *= 0.9; //
????
textLayer_.bounds = string_rect;
// set drop shadow
textLayer_.shadowPath = CGPathCreateWithRect( string_rect, NULL );
[textLayer_ setNeedsDisplay];
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