如何将NSButton插入NSTextView？ （排队）

Question

I have a NSTextView and a custom NSButton. What I want to do is to insert that button (60x16 in size) to the end of the NSTextView.
How can I do something like that? I've been trying to search around on how to do this but I'm not getting anywhere.
Where should I begin? Thanks

Answer 1

I believe this question is pretty similar to yours:

Buttons inside an NSTextView / NSTextStorage

Quote from the question:

how do I get an NSButton to appear inside the text and react to clicks?

Note that the issue is not fully solved there, but it seems the OP got a good head start. Hopefully you can take some clues from the discussion.

Here is one answer:

NSTextAttachment holds the contents of an attachment; it is the value of the NSAttachmentAttributeName attribute for the NSAttachmentCharacter in the attributed string. The contents are usually given by an NSFileWrapper, but this is not required; you can create an empty NSTextAttachment with a nil file wrapper.

NSTextAttachmentCell handles display and user interaction for the attachment. By default an NSTextAttachment will create an NSTextAttachmentCell to display itself, depending on the contents of the attachment; in the generic case this will just be an image cell displaying an icon.

If you wish, however, you can supply a custom NSTextAttachmentCell for your attachment. It need not be an member of the class NSTextAttachmentCell; it only needs to conform to the NSTextAttachmentCell protocol. Actually, even that is not strictly necessary; it only needs to implement a few of the basic methods for sizing and drawing. Most cells already do this.

You will, however, need to deal with mouse events yourself. The methods you'll probably want to implement would be wantsToTrackMouseForEvent:inRect:ofView:atCharacterIndex: and trackMouse:inRect:ofView:atCharacterIndex:. The character index here should let you determine which portion of the text is relevant.