Fix desync charactorvisitors and Caxton compatibility

[Wetterquarz]

This pull request aims to fix #12 (#16) and improve compatibility.

The fix of #12 has currently been achieved.
Compatibility (#1) has not been tested. Caxton is now compatible as of 5f80a30 (fix keve1227/furigana#3).

I have changed the architecture from "$^text(ruby)" converting to "\ue9c0text\ue9c1ruby\ue9c2" now replacing "$^text(ruby)" with a single character (\uFFFC) and then embedding the text and ruby in the net.minecraft.text.Style class.

As this is a major rewrite, there is currently still some differences in rendering which need to be fixed:

• Ruby is displayed a few pixels lower than before in Above-mode (Fixed with 6f41c86)
• Kanji are not equally spaced out in the gap but bunched in the middle (Fixed with 6f41c86)
• Autocomplete suggestions are rendered too far left (Fixed with 4cf1f3f)

[keve1227]

I'm out of town for the weekend but I'm planning to take a closer look at this marvel on Tuesday 😁

[keve1227]

I marked getWidthMutex as volatile since I can't imagine any kind of "mutex" that wouldn't be. I'm just not sure what getWidthMutex and isSeparatingDrawCall are and if maybe they should both be marked volatile.

[keve1227]

I must thank you for this. Using a single character per ruby and storing the details in the style is a really elegant solution to the line wrapping and overflow issues. If you feel this PR is ready, I'm happy to merge it.

• Autocomplete suggestions are rendered too far left

I'm not entirely sure what this point is referring to. Has this been resolved?

[Wetterquarz]

I must thank you for this. Using a single character per ruby and storing the details in the style is a really elegant solution to the line wrapping and overflow issues. If you feel this PR is ready, I'm happy to merge it.

• Autocomplete suggestions are rendered too far left

I'm not entirely sure what this point is referring to. Has this been resolved?

It is about the chat, where you can autocomplete names or parts of commands and ghosts of the suggestions is slightly shifted when not using Caxton. Unfortunately, it is still not fixed and have yet to find the source of the problem.

Edit: I just found the problem is more generally characters to the right of cursor are rendered to far left.

[Wetterquarz]

@keve1227, I believe it is now ready for merging.

[keve1227]

Now it's ready.

[Tahlpok]

Hey, I was abble to try it it worked ! Unfortunatly most of the mod are still stucked in 1.21.1 so i cannot play with the 1.21.3 mod. Is there a way to lunch this mod in this version ? or do you think that you can also correct the bug in 1.21.1.

Thank you in advance !

[Wetterquarz]

Hey, I was abble to try it it worked ! Unfortunatly most of the mod are still stucked in 1.21.1 so i cannot play with the 1.21.3 mod. Is there a way to lunch this mod in this version ? or do you think that you can also correct the bug in 1.21.1.

Thank you in advance !

I have started work on this and, except for a small problem which won't get in the way, it seems to work. This work can be seen in #18. You can also download the artifact from there.