Multi Font Support

[wrongsell]

Hello again, friend =)
I use Imui to integrate into various Unity games for modding purposes.

I would like to output all the fonts available in the game's assets and display them to make a selection directly in the UI, but Imui does not support more than 1 font.
I understand that this was done to improve the library's performance, but this is a relatively basic feature that can be useful for various purposes.
I think that support for multiple fonts would be a nice addition.

Also, it is difficult to fit all the necessary symbols on one atlas texture, which causes problems with displaying different symbols. Multi-atlas support would also be a good feature for the library.

[vape]

Hi! I plan to implement rich text support sometime in the future, which will probably require adding support for multiple fonts. But for now, I want to keep it as it is for the sake of simplicity and performance.

A single atlas is also used for performance reasons, to reduce the draw call count and batch with the rest of the UI. I've no plans to support multiple atlases, although I think I'll add an option to control its size. In the meantime, you can increase ImTextDrawer.FONT_ATLAS_W and ImTextDrawer.FONT_ATLAS_H for your needs.

As for your specific case, if I understood correctly, you are trying to draw a preview for each font in your project? If that's the case, I think it's still doable. I've made a small demo to do just that. It has some caveats, mainly that previews are static and have a larger memory footprint as we need to keep a preview texture for each font, but it should work fine as long as we're not talking about hundreds of fonts. Here is the gist: https://gist.github.com/vape/4238feecee0a53a96f500c85ddff9c7c

[wrongsell]

Hi! I plan to implement rich text support sometime in the future, which will probably require adding support for multiple fonts. But for now, I want to keep it as it is for the sake of simplicity and performance.

A single atlas is also used for performance reasons, to reduce the draw call count and batch with the rest of the UI. I've no plans to support multiple atlases, although I think I'll add an option to control its size. In the meantime, you can increase ImTextDrawer.FONT_ATLAS_W and ImTextDrawer.FONT_ATLAS_H for your needs.

As for your specific case, if I understood correctly, you are trying to draw a preview for each font in your project? If that's the case, I think it's still doable. I've made a small demo to do just that. It has some caveats, mainly that previews are static and have a larger memory footprint as we need to keep a preview texture for each font, but it should work fine as long as we're not talking about hundreds of fonts. Here is the gist: https://gist.github.com/vape/4238feecee0a53a96f500c85ddff9c7c

Thanks for the answer and the code example. It's really enough for my purposes, but I hope there will be a simpler and more elegant way to implement it soon. Waiting for more updates ;)