Citra-SDL: provide CLI tool for rebinding keys about citra HOT 2 OPEN

I’m taking a look at this! Reading keys from the command line sounds tricky; don’t you need to launch an SDL window to read keypresses like that? Either way, I think a simple interactive editor (display the current key bindings, click one to change it, save on exit) written in SDL might be better, so that’s what I’m considering to write.

from citra.

Scratch that: after some discussion on IRC, I’m realizing that rendering text in SDL is surprisingly difficult, and will require some new external library if we want to do it right. (SDL_ttf has its shortcomings, so linkmauve recommended Pango, but that seems to be a rather heavyweight solution.)

For now, the UI I’m implementing will be more or less as described in this issue: you pass a key name as a command line argument, a dummy SDL window pops open, you enter a single keypress into it, and the config file gets rewritten. This is sort of clunky, but should be easily improvable once the text issue gets resolved.

from citra.