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Questions tagged [nslayoutmanager]

Glyph layout engine in iOS and OSX

Responsible for converting characters drawn from NSTextStorage and laying them out as glyphs following the display/geometric constraints provided by one or more NSTextContainer.

120 questions
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How to properly determine width of an attributed string

What I want to do: layout text using NSLayoutManager and set its NSTextContainer to the width of the widest string (glyph-wise) in an array of strings. What my problem is: The methods for determining the total 'glyph-width' seem to be incorrect…
rhombus
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Clarifying the behaviour of NSLayoutManager & NSTextContainer with respect to vertical layout?

Code Sample I have a NSLayoutManager, NSTextContainer & NSTextStorage as properties in a custom NSView (not a TextView) initialized in awakeFromNib() as follows: textStorage = NSTextStorage(attributedString: self.attributedString) …
Sam
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get text in NSTextContainer

I have a NSOrderedSet of paragraphs with NSString content. Looping through all, a large string is created and given NSTextStorage. But with that all the paragraphs are lost. The code below allows me to count the pages and present the content in…
Giwan
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Computing text size with NSLayoutManager

I'm working on a view which uses TextKit framework to typeset text in columns like this: I use my UIView's bounds with edge insets (black rectangle) to compute 10 CGRects which I then transform into NSTextContainers (red rectangles). In drawRect: I…
Petr Mánek
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'-[UITextView autocapitalizationType]: unrecognized selector sent to instance?

I would like to create custom subclasses(SubCustomView) of uiview when click on button and added uitextview class on SubCustomView as subview. when i initiate uitextview i use initWithFrame:textContainer: method. when i used this method, the project…
Prasad G
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Scrollable NSTextView with custom NSTextStorage for formatting

I'm trying to make a text editor with formatting for Mac OS. Which I have working using an NSTextView together with a custom NSTextStorage class. Which applies attributes like bold etc to NSAttributableStrings. This all seems to work fine as seen in…
Matthijn
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NSLayoutManager Text new line seems to start from bottom of rectangle and go up

m_LayoutManager = [[NSLayoutManager alloc] init]; m_TextContainer = [[NSTextContainer alloc] init]; m_TextStorage = [[NSTextStorage alloc] initWithString: @"Here's to the crazy ones, the misfits, the rebels, the troublemakers, the round pegs in the…
user805547
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NSTextView lineHeightMultiple drawing issues

By setting the lineHeightMultiple of a NSParagraphStyle that is used in a text view I'm getting drawing artifacts when selecting text. This is reproducible in TextEdit. More specifically: Open TextEdit in rich text mode Pick Courier 14 as the…
user139992
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How to get height of string with maximum lines using NSTextStorage?

I am trying to get the height of an attributed string (for any font, any language, any strange utf8 characters, etc). I found this interesting topic at Badoo Chatto about different solutions: https://github.com/badoo/Chatto/issues/129 And the…
Kalzem
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TextKit - UILabel with background and spacing

I've been working on something like this. Everything was working fine until I've found out a string input that causes an issue The input string is "This is a long titlessss \n Withssssssss" Basically, it seems like the "long" word fits the space…
ndPPPhz
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Receive immediate layout updates from NSLayoutManager

I'm currently setting a delegate on the layout manager and reacting to layoutManager(_:didCompleteLayoutFor:atEnd:), but there seems to be a slight delay between the layout being updated visually (by editing the text or resizing the NSTextView) and…
T .
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Calculate glyph run bounds with NSLayoutManager

I'm trying to achieve a visual effect with a UITextView whereby the text has a distinct background color, eg: The approach I tried to build on was based on a code snippet from Apple used to calculate lines, and then built upon as shown in this…
isaac
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NSStackView places NSViews on the baseline

Having reviewed most of Apple's (paucity) of documentation regarding NSStackView, plus the wise words of the greater Internet, including the collective wisdom of Stackoverflow, a problem remains. Any NSView I add programmatically to my (IB…
Rojer
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enumerateLineFragmentsForGlyphRange:withBlock: returns word fragments

I'm using a UITextView to display some text. In laying out the text, I enumerate the lines of text using the enumerateLineFragmentsForGlyphRange:withBlock: method. NSInteger shrunkNumberOfLines = 3; __block NSMutableString *shortenedText =…
bryanjclark
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Adding Multiple NSTextContainers to an NSLayoutManager

I notice that you can add multiple text containers to a layout manager in Objective-C using the addTextContainer:(NSTextContainer *)textContainer selector. Using TextKit, I've only ever had to add one text container, and when messing around with…
rolling_codes
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