App::max_size_points limits webGL canvas to 1024px width silently -- Make settable?

[AriYoung00]

Hello all --
Just spend a couple hours banging my head against the wall trying to figure out why I couldn't make the webGL canvas for my app grow wider than 1024 pixels. Turns out, App::max_size_points returns [1024, 2048] by default, limiting the maximum possible width to 1024 pixels. Note that this is called on every (I think?) render cycle, so changing the canvas size manually with egui_web::resize_canvas_to_screen_size is not possible either. I understand that the width is limited in order to preserve performance in some browsers; however, I believe that max_size_points should probably be settable by the user, rather than an arbitrary hard-coded limit. My application, for example, does not work properly at this width. If this is something that would be well-received, I would be more than happy to put together a PR making the requisite changes to the App trait.
Thanks!

[emilk]

Just override max_size_points in your impl for App and pick whatever max-size you want, just like the demo app does: https://github.com/emilk/egui/blob/master/egui_demo_lib/src/wrap_app.rs#L53-L55

This is a common question, so what is needed is some better communication of this, the question is where to put that. Where did you go looking for a solution?

EDIT: I have improved the docs in ec6268e

[AriYoung00]

Whoops, my bad, major brain fart there. I think the first place that I looked was the documentation for App::max_size_points, although I also came across egui_web::resize_canvas_to_screen_size. Generally, I think it could be beneficial to add more information on controlling window/canvas size, as I found that both of those I had to mostly figure out from method docs.