Behold, a Multiline GuiTextField!

[Draco18s]

As there have been few attempts to create this functionality (that I can find) I decided that I'd have to do this myself. And seeing as it boodly doesn't exist anywhere, I thought I'd share.

 

It does not extend GuiTextField, though it probably could, but it was easier to just take everything that was GuiTextField and make a new class and just make changes as needed, particularly as a lot of GuiTextField's fields were private and thus not visible to a subclass (using getters and setters was frustrating, as many setters either didn't exist or had annoying side effects, such as ignoring newlines and up/down arrow keys).

 

https://gist.github.com/Draco18s/2b02762b597e67a9b887aed241f25077

 

Known issues:

• Minimum height of 2 lines enforced (are you really going to complain?)
• Does not support multi-line selections (they are trouble some to handle; rendering, copying, etc)
• Does not feature a scroll bar (yet)
• Mouse wheel scrolling clamped to range that keeps the cursor within the visible text box range (technical limitation; could be overcome, but the limitation relates to automatically scrolling the cursor into range when using the arrow keys)
• Page up/down not supported (yet)
• Sometimes the selection highlight appears in edge-case situations that cause the cursor to reposition due to another (e.g. moving from one line to another when pasting multi-line content, etc)
• Up/down arrow cursor movement is "by column" rather than "by rendered position" as I can't be arsed to figure out where the carat should go instead (my usage will be moving to a monospaced font, where those two values are the same).

Edited December 31, 2018 by Draco18s

[loordgek]

https://gist.github.com/Draco18s/2b02762b597e67a9b887aed241f25077#file-guimultilinetextfield-L23

?

[Draco18s]

Oh, that can be removed. I was trying to dump some info to the debug output and having been over in C# for so long I imported the wrong thing.

 

And didn't clean up my imports.

Edited January 1, 2019 by Draco18s

[Cadiboo]

17 hours ago, Draco18s said:

Does not support multi-line selections (they are trouble some to handle; rendering, copying, etc)

Are you planning on implementing this?

[Draco18s]

8 hours ago, Cadiboo said:

Are you planning on implementing this?

Haven't looked into it. It'd be a pain to write, though, as the selection system is based off of comparing one integer index to another integer index (selectionStart != cursorLocation) and making that work across lines would require knowing what *line* the selection start is on as well, and then doing annoying things in the render portion of the code.

[Draco18s]

Gist updated.

Fixes:

• Backspace and delete now function at line boundaries (collapsing 2 lines into 1).
• Enter now functions as expected when in the middle of a line (splitting at the cursor).