nsattributedstring

In CoreText it is easy ask: "for a given rectangle how much of this attributed string will fit?". CTFrameGetVisibleStringRange(rect).length Will return where in the string the next run of text should begin. My question is: "given an attributed string and a width, what rect height do I need to completely bound the attributed string?". Does the CoreText framework provide tools to do this? Thanks, Doug Joshua What you need is CTFramesetterSuggestFrameSizeWithConstraints() , you can use it like so: CTFramesetterRef frameSetter = CTFramesetterCreateWithAttributedString((__bridge

I use NSAttributedString to generate a string with two different sizes. By default, its bottom alignment looks like this: But I want to center it vertically, like this: To be clear, this is a single attributed string, not two or more. This is a simplified example to describe my question, what I'd actually like to do is more complex. I'd say the easiest thing to do is just manipulate the NSBaselineOffsetAttributeName attribute for the text in question: NSBaselineOffsetAttributeName The value of this attribute is an NSNumber object containing a floating point value indicating the character’s

This question may be a duplicate of this one . But the answers don't work for me and I want to be more specific. I have a NSString , but I need a NS(Mutable)AttributedString and some of the words in this string should be given a different color. I tried this: NSString *text = @"This is the text and i want to replace something"; NSDictionary *attributes = @ {NSForegroundColorAttributeName : [UIColor redColor]}; NSMutableAttributedString *subString = [[NSMutableAttributedString alloc] initWithString:@"AND" attributes:attributes]; NSMutableAttributedString *newText = [[NSMutableAttributedString

I have a UITextView and when the user is entering text into it, I want to format the text on the fly. Something like syntax highlighting... For that I'd like to use UITextView ... Everything works fine expect one problem: I take the text from the text view and make an NSAttributedString from of it. I make some edits to this attributed string and set it back as the textView.attributedText . This happens everytime the user types. So I have to remember the selectedTextRange before the edit to the attributedText and set it back afterwards so that the user can continue typing at the place he was

A simple test that is failed: Make a new project with just one subview (UITextView) and put the following in: - (void)viewDidLoad { [super viewDidLoad]; NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc] init]; paragraphStyle.lineHeightMultiple = 50.f; paragraphStyle.lineSpacing = 100.f; paragraphStyle.minimumLineHeight = 200.f; paragraphStyle.maximumLineHeight = 500.f; UIFont *font = [UIFont fontWithName:@"AmericanTypewriter" size:24.f]; self.textView.attributedText = [[NSAttributedString alloc] initWithString: @"This is a test.\n Will I pass?" attributes: @

I'm completely in the dark with Core Text's line spacing. I'm using NSAttributedString and I specify the following attributes on it: - kCTFontAttributeName - kCTParagraphStyleAttributeName From this the CTFrameSetter gets created and drawn to context. In the paragraph style attribute I'd like to specify the height of the lines. When I use kCTParagraphStyleSpecifierLineHeightMultiple each line receives padding at the top of the text, instead of the text being displayed in the middle of this height. When I use kCTParagraphStyleSpecifierLineSpacing a padding is added to the bottom of the text.