Fix some bugs in egui_flex and add small demo #267

	name: CI

	on: [push, pull_request]

	env:
	CARGO_TERM_COLOR: always
	RUSTFLAGS: -D warnings
	RUSTDOCFLAGS: -D warnings

	jobs:
	tests:
	strategy:
	matrix:
	os: [ubuntu-latest, macos-latest, windows-latest]
	runs-on: ${{ matrix.os }}
	steps:
	- name: Install packages (Linux)
	if: runner.os == 'Linux'
	uses: awalsh128/[email protected]
	with:
	packages: libwebkit2gtk-4.1-dev
	version: 1.0
	execute_install_scripts: true

	- uses: actions/checkout@v4

	- name: Set up cargo cache
	uses: Swatinem/rust-cache@v2

	- name: Clippy all-features
	uses: actions-rs/cargo@v1
	with:
	command: clippy
	args: --all-targets --all-features --workspace -- -D warnings

	- name: RustFmt
	uses: actions-rs/cargo@v1
	with:
	command: fmt
	args: --all --check

	- name: Test
	uses: actions-rs/cargo@v1
	with:
	command: test
	args: --all-features --workspace

	- name: Cargo Doc
	if: ${{ matrix.os == 'ubuntu-latest' }}
	uses: actions-rs/cargo@v1
	with:
	command: doc
	args: --lib --no-deps --all-features

	miri:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4

	- name: Install Miri
	uses: actions-rs/toolchain@v1
	with:
	toolchain: nightly
	override: true
	components: miri

	# Separate miri setup from run so that 'Miri Test'
	# logs are clean.
	- name: Setup Miri
	uses: actions-rs/cargo@v1
	with:
	command: miri
	args: setup

	- name: Miri Test
	uses: actions-rs/cargo@v1
	with:
	command: miri
	args: test --all-features

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