How do I use a NSTextBlock in an attributed string?
How do I use a NSTextBlock in an attributed string?
- Subject: How do I use a NSTextBlock in an attributed string?
- From: Daryle Walker <email@hidden>
- Date: Wed, 08 Mar 2017 16:17:39 -0500
I tried:
> // Set the paragraph formatting for the body...
> let bodyAdvancement = bodyFont.maximumAdvancement
> let bodyIndent = max(bodyAdvancement.width, bodyAdvancement.height) / 2.0
> let bodyParagraphStyle = NSParagraphStyle.default().mutableCopy() as! NSMutableParagraphStyle
> bodyParagraphStyle.headIndent = bodyIndent
> bodyParagraphStyle.lineBreakMode = .byWordWrapping
>
> // ...and separator
> let separatorParagraphStyle = bodyParagraphStyle.mutableCopy() as! NSMutableParagraphStyle
> let separatorTextBlock = NSTextBlock()
> separatorParagraphStyle.textBlocks.append(separatorTextBlock)
>
> // Set the body, but add a line for the initial separator
> let richSeparator = NSMutableAttributedString(string: " \n", attributes: [NSFontAttributeName: bodyFont, NSParagraphStyleAttributeName: separatorParagraphStyle])
> let richBody = NSMutableAttributedString(string: body, attributes: [NSFontAttributeName: bodyFont, NSParagraphStyleAttributeName: bodyParagraphStyle])
> result.append(richSeparator)
> result.append(richBody)
What I wanted: the separator line surrounded by a block.
What I got: the separator and the body all surrounded by a block.
I originally had the separator and body in a single string, and used a range to influence just the separator. This got the same result. I thought treating the separator and body in separate strings first wouldn’t infect the body with the text block, but it (illogically) does!
How do I end the influence of a block? Put -1 entries in the text-block array?
—
Daryle Walker
Mac, Internet, and Video Game Junkie
darylew AT mac DOT com
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