[epaint] Add more text wrapping options

[awaken1ng]

Add an ability to limit how many lines the text should have,
control breaking behavior a little bit,
and insert arbitrary character, e.g. …, to represent clipped text.

Maybe TextWrapping::overflow_character should be renamed into something more descriptive, like overflow_representation?

out.mp4

[BctfN0HUK7Yg]

Very good. I want to use it. Can you add wrapping by char (no by word) for small textareas?

[awaken1ng]

Very good. I want to use it. Can you add wrapping by char (no by word) for small textareas?

For TextEdits? Or you mean a single line Label?

If you mean the latter, TextWrapping::break_anywhere should do exactly that, if it's set to true then wrapping will break at a character, instead of trying to break at a word, you can see it's behaviour in the demo video.

[juancampa]

Pulled this into my fork and it works like a charm, at least in my use case. Thank you!

[emilk]

Left some comments, but looks good!

[emilk]

I think usize::MAX is a better way to disable it; then there is no need for any special cases.

[awaken1ng]

Default was initially usize::MAX, but I then later realized that if it's set to 0, then egui crashes in rows_from_paragraphs because we end up with no paragraphs, hence the check in line_break function.