Example Project Build Failure

[RossMurr4y]

Description

I've just run rustup update and tried to build the example_project but receive an error on build.

Error

godot-egui/example_project on  main [!?] is 📦 v0.1.0 via 🦀 v1.56.1 on ☁️  (ap-southeast-2) 
❯ cargo build
   Compiling egui_demo_lib v0.15.0
   Compiling godot_egui v0.1.8 (/Users/rossmurray/dev/egui_test/godot-egui/godot_egui)
error[E0277]: the trait bound `Arc<Style>: From<egui::style::Style>` is not satisfied
   --> godot_egui/src/lib.rs:230:47
    |
230 | ...                   self.egui_ctx.set_style(style);
    |                                     ^^^^^^^^^ the trait `From<egui::style::Style>` is not implemented for `Arc<Style>`
    |
    = help: the following implementations were found:
              <Arc<B> as From<Cow<'a, B>>>
              <Arc<CStr> as From<&CStr>>
              <Arc<CStr> as From<CString>>
              <Arc<OsStr> as From<&OsStr>>
            and 9 others
    = note: required because of the requirements on the impl of `Into<Arc<Style>>` for `egui::style::Style`

error[E0308]: mismatched types
   --> godot_egui/src/lib.rs:231:57
    |
231 | ...                   self.egui_ctx.set_fonts(font_definitions);
    |                                               ^^^^^^^^^^^^^^^^ expected struct `FontDefinitions`, found struct `epaint::text::fonts::FontDefinitions`
    |
    = note: perhaps two different versions of crate `epaint` are being used?

Some errors have detailed explanations: E0277, E0308.
For more information about an error, try `rustc --explain E0277`.
error: could not compile `godot_egui` due to 2 previous errors
warning: build failed, waiting for other jobs to finish...
error: build failed

Context

godot-egui/example_project on  main [!?] is 📦 v0.1.0 via 🦀 v1.56.1 on ☁️  (ap-southeast-2) 
❯ rustup show
Default host: x86_64-apple-darwin
rustup home:  /Users/rossmurray/.rustup

installed toolchains
--------------------

stable-x86_64-apple-darwin (default)
nightly-x86_64-apple-darwin
1.54.0-x86_64-apple-darwin

installed targets for active toolchain
--------------------------------------

thumbv7em-none-eabihf
x86_64-apple-darwin

active toolchain
----------------

stable-x86_64-apple-darwin (default)
rustc 1.56.1 (59eed8a2a 2021-11-01)

godot-egui/example_project on  main [!?] is 📦 v0.1.0 via 🦀 v1.56.1 on ☁️  (ap-southeast-2) took 45s 
❯ rustc --version
rustc 1.56.1 (59eed8a2a 2021-11-01)

godot-egui/example_project on  main [!?] is 📦 v0.1.0 via 🦀 v1.56.1 on ☁️  (ap-southeast-2) 
❯ cargo --version
cargo 1.56.0 (4ed5d137b 2021-10-04)

Fix

I was able to get it built by bumping the versions of egui and egui_demo_lib in the Cargo.toml:

[dependencies]
gdnative = "0.9.3"
egui = "0.15.0"
egui_demo_lib = "0.15.0"
godot_egui = { path = "../godot_egui" }

I was then able to cargo build with only a few deprecation messages received, and the project loaded and ran fine within Godot from that point.

[RossMurr4y]

Normally I'd submit a PR but in this case I'm not confident that my fix would work for all cases - I tried a few different things and may have ended up with an accidentally working version. I figure I'd just report it and leave it to those who know best :)

[jacobsky]

This issue is probably related to godot-theme, initially it was using a very naive serialization solution which caused this kind of issue to occur. In the latest version (along with the pending #33 ) this should be resolved.

[jacobsky]

#33 has been merged. So this issue should be resolved.