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Split out new crate egui-winit from egui_glium (#735)

pull/752/head
Emil Ernerfeldt 3 years ago
committed by GitHub
parent
commit
1b36863248
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  1. 2
      .github/workflows/rust.yml
  2. 8
      ARCHITECTURE.md
  3. 2
      CHANGELOG.md
  4. 16
      Cargo.lock
  5. 1
      Cargo.toml
  6. 2
      README.md
  7. 12
      eframe/Cargo.toml
  8. 2
      eframe/src/lib.rs
  9. 7
      egui-winit/CHANGELOG.md
  10. 45
      egui-winit/Cargo.toml
  11. 11
      egui-winit/README.md
  12. 69
      egui-winit/src/clipboard.rs
  13. 675
      egui-winit/src/lib.rs
  14. 1
      egui-winit/src/screen_reader.rs
  15. 3
      egui/Cargo.toml
  16. 4
      egui/src/data/input.rs
  17. 2
      egui_glium/CHANGELOG.md
  18. 25
      egui_glium/Cargo.toml
  19. 2
      egui_glium/README.md
  20. 27
      egui_glium/src/backend.rs
  21. 628
      egui_glium/src/lib.rs
  22. 1
      egui_glium/src/painter.rs
  23. 3
      egui_glium/src/persistence.rs
  24. 55
      egui_glium/src/window_settings.rs
  25. 3
      epaint/Cargo.toml
  26. 11
      sh/check.sh
  27. 2
      sh/docs.sh

2
.github/workflows/rust.yml

@ -132,7 +132,7 @@ jobs:
toolchain: 1.54.0
override: true
- run: sudo apt-get install libspeechd-dev
- run: cargo doc -p emath -p epaint -p egui -p eframe -p epi -p egui_web -p egui_glium --lib --no-deps --all-features
- run: cargo doc -p emath -p epaint -p egui -p eframe -p epi -p egui_web -p egui-winit -p egui_glium --lib --no-deps --all-features
doc_web:
name: cargo doc web

8
ARCHITECTURE.md

@ -5,7 +5,7 @@ Also see [`CONTRIBUTING.md`](https://github.com/emilk/egui/blob/master/CONTRIBUT
## Crate overview
The crates in this repository are: `egui, emath, epaint, egui, epi, egui_web, egui_glium, egui_demo_lib, egui_demo_app`.
The crates in this repository are: `egui, emath, epaint, egui, epi, egui-winit, egui_web, egui_glium, egui_demo_lib, egui_demo_app`.
### `egui`: The main GUI library.
Example code: `if ui.button("Click me").clicked() { … }`
@ -25,6 +25,11 @@ Depends on `emath`, [`ab_glyph`](https://crates.io/crates/ab_glyph), [`atomic_re
Depends only on `egui`.
Adds a thin application level wrapper around `egui` for hosting an `egui` app inside of `eframe`.
### `egui-winit`
This crates provides bindings between [`egui`](https://github.com/emilk/egui) and [winit](https://crates.io/crates/winit).
The library translates winit events to egui, handled copy/paste, updates the cursor, open links clicked in egui, etc.
### `egui_web`
Puts an egui app inside the web browser by compiling to WASM and binding to the web browser with [`js-sys`](https://crates.io/crates/js-sys) and [`wasm-bindgen`](https://crates.io/crates/wasm-bindgen). Paints the triangles that egui outputs using WebGL.
@ -40,7 +45,6 @@ The demo that you can see at <https://emilk.github.io/egui/index.html> is using
Depends on `egui` + `epi`.
This contains a bunch of uses of `egui` and looks like the ui code you would write for an `egui` app.
### `egui_demo_app`
Thin wrapper around `egui_demo_lib` so we can compile it to a web site or a native app executable.
Depends on `egui_demo_lib` + `eframe`.

2
CHANGELOG.md

@ -2,7 +2,7 @@
All notable changes to the egui crate will be documented in this file.
NOTE: [`eframe`](eframe/CHANGELOG.md), [`egui_web`](egui_web/CHANGELOG.md) and [`egui_glium`](egui_glium/CHANGELOG.md) have their own changelogs!
NOTE: [`eframe`](eframe/CHANGELOG.md), [`egui_web`](egui_web/CHANGELOG.md), [`egui-winit`](egui-winit/CHANGELOG.md) and [`egui_glium`](egui_glium/CHANGELOG.md) have their own changelogs!
## Unreleased

16
Cargo.lock

@ -799,6 +799,18 @@ dependencies = [
"serde_json",
]
[[package]]
name = "egui-winit"
version = "0.14.0"
dependencies = [
"copypasta",
"egui",
"epi",
"tts",
"webbrowser",
"winit",
]
[[package]]
name = "egui_demo_app"
version = "0.14.0"
@ -826,16 +838,14 @@ name = "egui_glium"
version = "0.14.0"
dependencies = [
"chrono",
"copypasta",
"directories-next",
"egui",
"egui-winit",
"epi",
"glium",
"image",
"ron",
"serde",
"tts",
"webbrowser",
]
[[package]]

1
Cargo.toml

@ -5,6 +5,7 @@ members = [
"egui_demo_lib",
"egui_glium",
"egui_web",
"egui-winit",
"egui",
"emath",
"epaint",

2
README.md

@ -167,6 +167,7 @@ I maintain two official egui integrations made for apps:
* [`egui_web`](https://github.com/emilk/egui/tree/master/egui_web) for making a web app. Compiles to WASM, renders with WebGL. [Click to run the egui demo](https://emilk.github.io/egui/index.html).
* [`egui_glium`](https://github.com/emilk/egui/tree/master/egui_glium) for compiling native apps with [Glium](https://github.com/glium/glium).
* [`egui-winit`](https://github.com/emilk/egui/tree/master/egui-winit) for integrating with [`winit`](https://github.com/rust-windowing/winit). `egui-winit` is used by `egui_glium`.
If you making an app, consider using [`eframe`](https://github.com/emilk/egui/tree/master/eframe), a framework which allows you to write code that works on both the web (`egui_web`) and native (using `egui_glium`).
@ -180,7 +181,6 @@ If you making an app, consider using [`eframe`](https://github.com/emilk/egui/tr
* [`egui_sdl2_gl`](https://crates.io/crates/egui_sdl2_gl) for [SDL2](https://crates.io/crates/sdl2).
* [`egui_vulkano`](https://github.com/derivator/egui_vulkano) for [Vulkano](https://github.com/vulkano-rs/vulkano).
* [`egui-winit-ash-integration`](https://github.com/MatchaChoco010/egui-winit-ash-integration) for [winit](https://github.com/rust-windowing/winit) and [ash](https://github.com/MaikKlein/ash).
* [`egui_winit_platform`](https://github.com/hasenbanck/egui_winit_platform) for [winit](https://crates.io/crates/winit) (requires separate painter).
* [`egui_winit_vulkano`](https://github.com/hakolao/egui_winit_vulkano) for [Vulkano](https://github.com/vulkano-rs/vulkano).
* [`fltk-egui`](https://crates.io/crates/fltk-egui) for [fltk-rs](https://github.com/fltk-rs/fltk-rs).
* [`ggez-egui`](https://github.com/NemuiSen/ggez-egui) for the [ggez](https://ggez.rs/) game framework.

12
eframe/Cargo.toml

@ -28,7 +28,7 @@ epi = { version = "0.14.0", path = "../epi" }
# For compiling natively:
[target.'cfg(not(target_arch = "wasm32"))'.dependencies]
egui_glium = { version = "0.14.0", path = "../egui_glium", default-features = false }
egui_glium = { version = "0.14.0", path = "../egui_glium", default-features = false, features = ["clipboard", "links"] }
# For compiling to web:
[target.'cfg(target_arch = "wasm32")'.dependencies]
@ -43,6 +43,12 @@ default = ["default_fonts"]
# If set, egui will use `include_bytes!` to bundle some fonts.
# If you plan on specifying your own fonts you may disable this feature.
default_fonts = ["egui/default_fonts"]
# Enable saving app state to disk.
persistence = ["epi/persistence", "egui_glium/persistence", "egui_web/persistence"]
screen_reader = ["egui_glium/screen_reader", "egui_web/screen_reader"] # experimental
time = ["egui_glium/time"] # for seconds_since_midnight
# experimental support for a screen reader
screen_reader = ["egui_glium/screen_reader", "egui_web/screen_reader"]
# for seconds_since_midnight (used in egui_demo_lib)
time = ["egui_glium/time"]

2
eframe/src/lib.rs

@ -62,5 +62,5 @@ pub fn start_web(canvas_id: &str, app: Box<dyn epi::App>) -> Result<(), wasm_bin
/// Call from `fn main` like this: `eframe::run_native(Box::new(MyEguiApp::default()))`
#[cfg(not(target_arch = "wasm32"))]
pub fn run_native(app: Box<dyn epi::App>, native_options: epi::NativeOptions) {
egui_glium::run(app, native_options)
egui_glium::run(app, &native_options)
}

7
egui-winit/CHANGELOG.md

@ -0,0 +1,7 @@
# Changelog for egui-winit
All notable changes to the `egui-winit` integration will be noted in this file.
## Unreleased
First stand-alone release. Previously part of `egui_glium`.

45
egui-winit/Cargo.toml

@ -0,0 +1,45 @@
[package]
name = "egui-winit"
version = "0.14.0"
authors = ["Emil Ernerfeldt <emil.ernerfeldt@gmail.com>"]
description = "Bindings for using egui with winit"
edition = "2018"
homepage = "https://github.com/emilk/egui/tree/master/egui-winit"
license = "MIT OR Apache-2.0"
readme = "README.md"
repository = "https://github.com/emilk/egui/tree/master/egui-winit"
categories = ["gui", "game-development"]
keywords = ["winit", "egui", "gui", "gamedev"]
include = [
"../LICENSE-APACHE",
"../LICENSE-MIT",
"**/*.rs",
"Cargo.toml",
]
[package.metadata.docs.rs]
all-features = true
[dependencies]
egui = { version = "0.14.0", path = "../egui", default-features = false }
epi = { version = "0.14.0", path = "../epi" }
winit = "0.25"
copypasta = { version = "0.7", optional = true }
webbrowser = { version = "0.5", optional = true }
# feature screen_reader
tts = { version = "0.17", optional = true }
[features]
default = ["clipboard", "links"]
# enable cut/copy/paste to OS clipboard.
# if disabled a clipboard will be simulated so you can still copy/paste within the egui app.
clipboard = ["copypasta"]
# enable opening links in a browser when an egui hyperlink is clicked.
links = ["webbrowser"]
# experimental support for a screen reader
screen_reader = ["tts"]

11
egui-winit/README.md

@ -0,0 +1,11 @@
# egui-winit
[![Latest version](https://img.shields.io/crates/v/egui-winit.svg)](https://crates.io/crates/egui-winit)
[![Documentation](https://docs.rs/egui-winit/badge.svg)](https://docs.rs/egui-winit)
[![unsafe forbidden](https://img.shields.io/badge/unsafe-forbidden-success.svg)](https://github.com/rust-secure-code/safety-dance/)
![MIT](https://img.shields.io/badge/license-MIT-blue.svg)
![Apache](https://img.shields.io/badge/license-Apache-blue.svg)
This crates provides bindings between [`egui`](https://github.com/emilk/egui) and [winit](https://crates.io/crates/winit).
The library translates winit events to egui, handled copy/paste, updates the cursor, open links clicked in egui, etc.

69
egui-winit/src/clipboard.rs

@ -0,0 +1,69 @@
/// Handles interfacing either with the OS clipboard.
/// If the "clipboard" feature is off it will instead simulate the clipboard locally.
pub struct Clipboard {
#[cfg(feature = "copypasta")]
copypasta: Option<copypasta::ClipboardContext>,
/// Fallback manual clipboard.
#[cfg(not(feature = "copypasta"))]
clipboard: String,
}
impl Default for Clipboard {
fn default() -> Self {
Self {
#[cfg(feature = "copypasta")]
copypasta: init_copypasta(),
#[cfg(not(feature = "copypasta"))]
clipboard: String::default(),
}
}
}
impl Clipboard {
pub fn get(&mut self) -> Option<String> {
#[cfg(feature = "copypasta")]
if let Some(clipboard) = &mut self.copypasta {
use copypasta::ClipboardProvider as _;
match clipboard.get_contents() {
Ok(contents) => Some(contents),
Err(err) => {
eprintln!("Paste error: {}", err);
None
}
}
} else {
None
}
#[cfg(not(feature = "copypasta"))]
Some(self.clipboard.clone())
}
pub fn set(&mut self, text: String) {
#[cfg(feature = "copypasta")]
if let Some(clipboard) = &mut self.copypasta {
use copypasta::ClipboardProvider as _;
if let Err(err) = clipboard.set_contents(text) {
eprintln!("Copy/Cut error: {}", err);
}
}
#[cfg(not(feature = "copypasta"))]
{
self.clipboard = text;
}
}
}
#[cfg(feature = "copypasta")]
fn init_copypasta() -> Option<copypasta::ClipboardContext> {
match copypasta::ClipboardContext::new() {
Ok(clipboard) => Some(clipboard),
Err(err) => {
eprintln!("Failed to initialize clipboard: {}", err);
None
}
}
}

675
egui-winit/src/lib.rs

@ -0,0 +1,675 @@
//! [`egui`] bindings for [`winit`](https://github.com/rust-windowing/winit).
//!
//! The library translates winit events to egui, handled copy/paste,
//! updates the cursor, open links clicked in egui, etc.
#![forbid(unsafe_code)]
#![warn(
clippy::all,
clippy::await_holding_lock,
clippy::char_lit_as_u8,
clippy::checked_conversions,
clippy::dbg_macro,
clippy::debug_assert_with_mut_call,
clippy::doc_markdown,
clippy::empty_enum,
clippy::enum_glob_use,
clippy::exit,
clippy::expl_impl_clone_on_copy,
clippy::explicit_deref_methods,
clippy::explicit_into_iter_loop,
clippy::fallible_impl_from,
clippy::filter_map_next,
clippy::float_cmp_const,
clippy::fn_params_excessive_bools,
clippy::if_let_mutex,
clippy::imprecise_flops,
clippy::inefficient_to_string,
clippy::invalid_upcast_comparisons,
clippy::large_types_passed_by_value,
clippy::let_unit_value,
clippy::linkedlist,
clippy::lossy_float_literal,
clippy::macro_use_imports,
clippy::manual_ok_or,
clippy::map_err_ignore,
clippy::map_flatten,
clippy::match_on_vec_items,
clippy::match_same_arms,
clippy::match_wildcard_for_single_variants,
clippy::mem_forget,
clippy::mismatched_target_os,
clippy::missing_errors_doc,
clippy::missing_safety_doc,
clippy::mut_mut,
clippy::mutex_integer,
clippy::needless_borrow,
clippy::needless_continue,
clippy::needless_pass_by_value,
clippy::option_option,
clippy::path_buf_push_overwrite,
clippy::ptr_as_ptr,
clippy::ref_option_ref,
clippy::rest_pat_in_fully_bound_structs,
clippy::same_functions_in_if_condition,
clippy::string_add_assign,
clippy::string_add,
clippy::string_lit_as_bytes,
clippy::string_to_string,
clippy::todo,
clippy::trait_duplication_in_bounds,
clippy::unimplemented,
clippy::unnested_or_patterns,
clippy::unused_self,
clippy::useless_transmute,
clippy::verbose_file_reads,
clippy::zero_sized_map_values,
future_incompatible,
missing_crate_level_docs,
nonstandard_style,
rust_2018_idioms
)]
#![allow(clippy::float_cmp)]
#![allow(clippy::manual_range_contains)]
pub use winit;
pub mod clipboard;
pub mod screen_reader;
pub fn native_pixels_per_point(window: &winit::window::Window) -> f32 {
window.scale_factor() as f32
}
pub fn screen_size_in_pixels(window: &winit::window::Window) -> egui::Vec2 {
// let (width_in_pixels, height_in_pixels) = display.get_framebuffer_dimensions();
// egui::vec2(width_in_pixels as f32, height_in_pixels as f32)
let size = window.inner_size();
egui::vec2(size.width as f32, size.height as f32)
}
/// Handles the integration between egui and winit.
pub struct State {
start_time: std::time::Instant,
egui_input: egui::RawInput,
pointer_pos_in_points: Option<egui::Pos2>,
any_pointer_button_down: bool,
current_cursor_icon: egui::CursorIcon,
/// What egui uses.
current_pixels_per_point: f32,
clipboard: clipboard::Clipboard,
screen_reader: screen_reader::ScreenReader,
/// If `true`, mouse inputs will be treated as touches.
/// Useful for debugging touch support in egui.
simulate_touch_screen: bool,
}
impl State {
/// Initialize with the native `pixels_per_point` (dpi scaling).
pub fn new(window: &winit::window::Window) -> Self {
Self::from_pixels_per_point(native_pixels_per_point(window))
}
/// Initialize with a given dpi scaling.
pub fn from_pixels_per_point(pixels_per_point: f32) -> Self {
Self {
start_time: std::time::Instant::now(),
egui_input: egui::RawInput {
pixels_per_point: Some(pixels_per_point),
..Default::default()
},
pointer_pos_in_points: None,
any_pointer_button_down: false,
current_cursor_icon: egui::CursorIcon::Default,
current_pixels_per_point: pixels_per_point,
clipboard: Default::default(),
screen_reader: screen_reader::ScreenReader::default(),
simulate_touch_screen: false,
}
}
/// The number of physical pixels per logical point,
/// as configured on the current egui context (see [`egui::Context::pixels_per_point`]).
#[inline]
pub fn pixels_per_point(&self) -> f32 {
self.current_pixels_per_point
}
/// The current input state.
/// This is changed by [`Self::on_event`] and cleared by [`Self::take_egui_input`].
#[inline]
pub fn egui_input(&self) -> &egui::RawInput {
&self.egui_input
}
/// Prepare for a new frame by extracting the accumulated input,
/// as well as setting [the time](egui::RawInput::time) and [screen rectangle](egui::RawInput::screen_rect).
pub fn take_egui_input(&mut self, display: &winit::window::Window) -> egui::RawInput {
let pixels_per_point = self.pixels_per_point();
self.egui_input.time = Some(self.start_time.elapsed().as_secs_f64());
// On Windows, a minimized window will have 0 width and height.
// See: https://github.com/rust-windowing/winit/issues/208
// This solves an issue where egui window positions would be changed when minimizing on Windows.
let screen_size_in_pixels = screen_size_in_pixels(display);
let screen_size_in_points = screen_size_in_pixels / pixels_per_point;
self.egui_input.screen_rect =
if screen_size_in_points.x > 0.0 && screen_size_in_points.y > 0.0 {
Some(egui::Rect::from_min_size(
egui::Pos2::ZERO,
screen_size_in_points,
))
} else {
None
};
self.egui_input.take()
}
/// Call this when there is a new event.
///
/// The result can be found in [`Self::egui_input`] and be extracted with [`Self::take_egui_input`].
///
/// Returns `true` if egui wants exclusive use of this event
/// (e.g. a mouse click on an egui window, or entering text into a text field).
/// For instance, if you use egui for a game, you want to first call this
/// and only when this returns `false` pass on the events to your game.
///
/// Note that egui uses `tab` to move focus between elements, so this will always return `true` for tabs.
pub fn on_event(
&mut self,
egui_ctx: &egui::Context,
event: &winit::event::WindowEvent<'_>,
) -> bool {
use winit::event::WindowEvent;
match event {
WindowEvent::ScaleFactorChanged { scale_factor, .. } => {
let pixels_per_point = *scale_factor as f32;
self.egui_input.pixels_per_point = Some(pixels_per_point);
self.current_pixels_per_point = pixels_per_point;
false
}
WindowEvent::MouseInput { state, button, .. } => {
self.on_mouse_button_input(*state, *button);
egui_ctx.wants_pointer_input()
}
WindowEvent::MouseWheel { delta, .. } => {
self.on_mouse_wheel(*delta);
egui_ctx.wants_pointer_input()
}
WindowEvent::CursorMoved { position, .. } => {
self.on_cursor_moved(*position);
egui_ctx.is_using_pointer()
}
WindowEvent::CursorLeft { .. } => {
self.pointer_pos_in_points = None;
self.egui_input.events.push(egui::Event::PointerGone);
false
}
// WindowEvent::TouchpadPressure {device_id, pressure, stage, .. } => {} // TODO
WindowEvent::Touch(touch) => {
self.on_touch(touch);
match touch.phase {
winit::event::TouchPhase::Started
| winit::event::TouchPhase::Ended
| winit::event::TouchPhase::Cancelled => egui_ctx.wants_pointer_input(),
winit::event::TouchPhase::Moved => egui_ctx.is_using_pointer(),
}
}
WindowEvent::ReceivedCharacter(ch) => {
if is_printable_char(*ch)
&& !self.egui_input.modifiers.ctrl
&& !self.egui_input.modifiers.mac_cmd
{
self.egui_input
.events
.push(egui::Event::Text(ch.to_string()));
egui_ctx.wants_keyboard_input()
} else {
false
}
}
WindowEvent::KeyboardInput { input, .. } => {
self.on_keyboard_input(input);
egui_ctx.wants_keyboard_input()
|| input.virtual_keycode == Some(winit::event::VirtualKeyCode::Tab)
}
WindowEvent::Focused(_) => {
// We will not be given a KeyboardInput event when the modifiers are released while
// the window does not have focus. Unset all modifier state to be safe.
self.egui_input.modifiers = egui::Modifiers::default();
false
}
WindowEvent::HoveredFile(path) => {
self.egui_input.hovered_files.push(egui::HoveredFile {
path: Some(path.clone()),
..Default::default()
});
false
}
WindowEvent::HoveredFileCancelled => {
self.egui_input.hovered_files.clear();
false
}
WindowEvent::DroppedFile(path) => {
self.egui_input.hovered_files.clear();
self.egui_input.dropped_files.push(egui::DroppedFile {
path: Some(path.clone()),
..Default::default()
});
false
}
_ => {
// dbg!(event);
false
}
}
}
fn on_mouse_button_input(
&mut self,
state: winit::event::ElementState,
button: winit::event::MouseButton,
) {
if let Some(pos) = self.pointer_pos_in_points {
if let Some(button) = translate_mouse_button(button) {
let pressed = state == winit::event::ElementState::Pressed;
self.egui_input.events.push(egui::Event::PointerButton {
pos,
button,
pressed,
modifiers: self.egui_input.modifiers,
});
if self.simulate_touch_screen {
if pressed {
self.any_pointer_button_down = true;
self.egui_input.events.push(egui::Event::Touch {
device_id: egui::TouchDeviceId(0),
id: egui::TouchId(0),
phase: egui::TouchPhase::Start,
pos,
force: 0.0,
});
} else {
self.any_pointer_button_down = false;
self.egui_input.events.push(egui::Event::PointerGone);
self.egui_input.events.push(egui::Event::Touch {
device_id: egui::TouchDeviceId(0),
id: egui::TouchId(0),
phase: egui::TouchPhase::End,
pos,
force: 0.0,
});
};
}
}
}
}
fn on_cursor_moved(&mut self, pos_in_pixels: winit::dpi::PhysicalPosition<f64>) {
let pos_in_points = egui::pos2(
pos_in_pixels.x as f32 / self.pixels_per_point(),
pos_in_pixels.y as f32 / self.pixels_per_point(),
);
self.pointer_pos_in_points = Some(pos_in_points);
if self.simulate_touch_screen {
if self.any_pointer_button_down {
self.egui_input
.events
.push(egui::Event::PointerMoved(pos_in_points));
self.egui_input.events.push(egui::Event::Touch {
device_id: egui::TouchDeviceId(0),
id: egui::TouchId(0),
phase: egui::TouchPhase::Move,
pos: pos_in_points,
force: 0.0,
});
}
} else {
self.egui_input
.events
.push(egui::Event::PointerMoved(pos_in_points));
}
}
fn on_touch(&mut self, touch: &winit::event::Touch) {
self.egui_input.events.push(egui::Event::Touch {
device_id: egui::TouchDeviceId(egui::epaint::util::hash(touch.device_id)),
id: egui::TouchId::from(touch.id),
phase: match touch.phase {
winit::event::TouchPhase::Started => egui::TouchPhase::Start,
winit::event::TouchPhase::Moved => egui::TouchPhase::Move,
winit::event::TouchPhase::Ended => egui::TouchPhase::End,
winit::event::TouchPhase::Cancelled => egui::TouchPhase::Cancel,
},
pos: egui::pos2(
touch.location.x as f32 / self.pixels_per_point(),
touch.location.y as f32 / self.pixels_per_point(),
),
force: match touch.force {
Some(winit::event::Force::Normalized(force)) => force as f32,
Some(winit::event::Force::Calibrated {
force,
max_possible_force,
..
}) => (force / max_possible_force) as f32,
None => 0_f32,
},
});
}
fn on_mouse_wheel(&mut self, delta: winit::event::MouseScrollDelta) {
let mut delta = match delta {
winit::event::MouseScrollDelta::LineDelta(x, y) => {
let points_per_scroll_line = 50.0; // Scroll speed decided by consensus: https://github.com/emilk/egui/issues/461
egui::vec2(x, y) * points_per_scroll_line
}
winit::event::MouseScrollDelta::PixelDelta(delta) => {
egui::vec2(delta.x as f32, delta.y as f32) / self.pixels_per_point()
}
};
if cfg!(target_os = "macos") {
// This is still buggy in winit despite
// https://github.com/rust-windowing/winit/issues/1695 being closed
delta.x *= -1.0;
}
if self.egui_input.modifiers.ctrl || self.egui_input.modifiers.command {
// Treat as zoom instead:
self.egui_input.zoom_delta *= (delta.y / 200.0).exp();
} else {
self.egui_input.scroll_delta += delta;
}
}
fn on_keyboard_input(&mut self, input: &winit::event::KeyboardInput) {
if let Some(keycode) = input.virtual_keycode {
use winit::event::VirtualKeyCode;
let pressed = input.state == winit::event::ElementState::Pressed;
// We could also use `WindowEvent::ModifiersChanged` instead, I guess.
if matches!(keycode, VirtualKeyCode::LAlt | VirtualKeyCode::RAlt) {
self.egui_input.modifiers.alt = pressed;
}
if matches!(keycode, VirtualKeyCode::LControl | VirtualKeyCode::RControl) {
self.egui_input.modifiers.ctrl = pressed;
if !cfg!(target_os = "macos") {
self.egui_input.modifiers.command = pressed;
}
}
if matches!(keycode, VirtualKeyCode::LShift | VirtualKeyCode::RShift) {
self.egui_input.modifiers.shift = pressed;
}
if cfg!(target_os = "macos")
&& matches!(keycode, VirtualKeyCode::LWin | VirtualKeyCode::RWin)
{
self.egui_input.modifiers.mac_cmd = pressed;
self.egui_input.modifiers.command = pressed;
}
if pressed {
// VirtualKeyCode::Paste etc in winit are broken/untrustworthy,
// so we detect these things manually:
if is_cut_command(self.egui_input.modifiers, keycode) {
self.egui_input.events.push(egui::Event::Cut);
} else if is_copy_command(self.egui_input.modifiers, keycode) {
self.egui_input.events.push(egui::Event::Copy);
} else if is_paste_command(self.egui_input.modifiers, keycode) {
if let Some(contents) = self.clipboard.get() {
self.egui_input.events.push(egui::Event::Text(contents));
}
}
}
if let Some(key) = translate_virtual_key_code(keycode) {
self.egui_input.events.push(egui::Event::Key {
key,
pressed,
modifiers: self.egui_input.modifiers,
});
}
}
}
/// Call with the output given by `egui`.
///
/// This will, if needed:
/// * update the cursor
/// * copy text to the clipboard
/// * open any clicked urls
/// * update the IME
/// *
pub fn handle_output(
&mut self,
window: &winit::window::Window,
egui_ctx: &egui::Context,
output: egui::Output,
) {
self.current_pixels_per_point = egui_ctx.pixels_per_point(); // someone can have changed it to scale the UI
if egui_ctx.memory().options.screen_reader {
self.screen_reader.speak(&output.events_description());
}
self.set_cursor_icon(window, output.cursor_icon);
if let Some(open) = output.open_url {
open_url(&open.url);
}
if !output.copied_text.is_empty() {
self.clipboard.set(output.copied_text);
}
if let Some(egui::Pos2 { x, y }) = output.text_cursor_pos {
window.set_ime_position(winit::dpi::LogicalPosition { x, y })
}
}
/// Returns `true` if Alt-F4 (windows/linux) or Cmd-Q (Mac)
pub fn is_quit_shortcut(&self, input: &winit::event::KeyboardInput) -> bool {
if cfg!(target_os = "macos") {
input.state == winit::event::ElementState::Pressed
&& self.egui_input.modifiers.mac_cmd
&& input.virtual_keycode == Some(winit::event::VirtualKeyCode::Q)
} else {
input.state == winit::event::ElementState::Pressed
&& self.egui_input.modifiers.alt
&& input.virtual_keycode == Some(winit::event::VirtualKeyCode::F4)
}
}
/// Returns `true` if this a close event or a Cmd-Q/Alt-F4 keyboard command.
pub fn is_quit_event(&self, event: &winit::event::WindowEvent<'_>) -> bool {
use winit::event::WindowEvent;
match event {
WindowEvent::CloseRequested | WindowEvent::Destroyed => true,
WindowEvent::KeyboardInput { input, .. } => self.is_quit_shortcut(input),
_ => false,
}
}
fn set_cursor_icon(&mut self, window: &winit::window::Window, cursor_icon: egui::CursorIcon) {
// prevent flickering near frame boundary when Windows OS tries to control cursor icon for window resizing
if self.current_cursor_icon == cursor_icon {
return;
}
self.current_cursor_icon = cursor_icon;
if let Some(cursor_icon) = translate_cursor(cursor_icon) {
window.set_cursor_visible(true);
let is_pointer_in_window = self.pointer_pos_in_points.is_some();
if is_pointer_in_window {
window.set_cursor_icon(cursor_icon);
}
} else {
window.set_cursor_visible(false);
}
}
}
fn open_url(_url: &str) {
#[cfg(feature = "webbrowser")]
if let Err(err) = webbrowser::open(_url) {
eprintln!("Failed to open url: {}", err);
}
#[cfg(not(feature = "webbrowser"))]
{
eprintln!("Cannot open url - feature \"links\" not enabled.");
}
}
/// Glium sends special keys (backspace, delete, F1, ...) as characters.
/// Ignore those.
/// We also ignore '\r', '\n', '\t'.
/// Newlines are handled by the `Key::Enter` event.
fn is_printable_char(chr: char) -> bool {
let is_in_private_use_area = '\u{e000}' <= chr && chr <= '\u{f8ff}'
|| '\u{f0000}' <= chr && chr <= '\u{ffffd}'
|| '\u{100000}' <= chr && chr <= '\u{10fffd}';
!is_in_private_use_area && !chr.is_ascii_control()
}
fn is_cut_command(modifiers: egui::Modifiers, keycode: winit::event::VirtualKeyCode) -> bool {
(modifiers.command && keycode == winit::event::VirtualKeyCode::X)
|| (cfg!(target_os = "windows")
&& modifiers.shift
&& keycode == winit::event::VirtualKeyCode::Delete)
}
fn is_copy_command(modifiers: egui::Modifiers, keycode: winit::event::VirtualKeyCode) -> bool {
(modifiers.command && keycode == winit::event::VirtualKeyCode::C)
|| (cfg!(target_os = "windows")
&& modifiers.ctrl
&& keycode == winit::event::VirtualKeyCode::Insert)
}
fn is_paste_command(modifiers: egui::Modifiers, keycode: winit::event::VirtualKeyCode) -> bool {
(modifiers.command && keycode == winit::event::VirtualKeyCode::V)
|| (cfg!(target_os = "windows")
&& modifiers.shift
&& keycode == winit::event::VirtualKeyCode::Insert)
}
fn translate_mouse_button(button: winit::event::MouseButton) -> Option<egui::PointerButton> {
match button {
winit::event::MouseButton::Left => Some(egui::PointerButton::Primary),
winit::event::MouseButton::Right => Some(egui::PointerButton::Secondary),
winit::event::MouseButton::Middle => Some(egui::PointerButton::Middle),
winit::event::MouseButton::Other(_) => None,
}
}
fn translate_virtual_key_code(key: winit::event::VirtualKeyCode) -> Option<egui::Key> {
use egui::Key;
use winit::event::VirtualKeyCode;
Some(match key {
VirtualKeyCode::Down => Key::ArrowDown,
VirtualKeyCode::Left => Key::ArrowLeft,
VirtualKeyCode::Right => Key::ArrowRight,
VirtualKeyCode::Up => Key::ArrowUp,
VirtualKeyCode::Escape => Key::Escape,
VirtualKeyCode::Tab => Key::Tab,
VirtualKeyCode::Back => Key::Backspace,
VirtualKeyCode::Return => Key::Enter,
VirtualKeyCode::Space => Key::Space,
VirtualKeyCode::Insert => Key::Insert,
VirtualKeyCode::Delete => Key::Delete,
VirtualKeyCode::Home => Key::Home,
VirtualKeyCode::End => Key::End,
VirtualKeyCode::PageUp => Key::PageUp,
VirtualKeyCode::PageDown => Key::PageDown,
VirtualKeyCode::Key0 | VirtualKeyCode::Numpad0 => Key::Num0,
VirtualKeyCode::Key1 | VirtualKeyCode::Numpad1 => Key::Num1,
VirtualKeyCode::Key2 | VirtualKeyCode::Numpad2 => Key::Num2,
VirtualKeyCode::Key3 | VirtualKeyCode::Numpad3 => Key::Num3,
VirtualKeyCode::Key4 | VirtualKeyCode::Numpad4 => Key::Num4,
VirtualKeyCode::Key5 | VirtualKeyCode::Numpad5 => Key::Num5,
VirtualKeyCode::Key6 | VirtualKeyCode::Numpad6 => Key::Num6,
VirtualKeyCode::Key7 | VirtualKeyCode::Numpad7 => Key::Num7,
VirtualKeyCode::Key8 | VirtualKeyCode::Numpad8 => Key::Num8,
VirtualKeyCode::Key9 | VirtualKeyCode::Numpad9 => Key::Num9,
VirtualKeyCode::A => Key::A,
VirtualKeyCode::B => Key::B,
VirtualKeyCode::C => Key::C,
VirtualKeyCode::D => Key::D,
VirtualKeyCode::E => Key::E,
VirtualKeyCode::F => Key::F,
VirtualKeyCode::G => Key::G,
VirtualKeyCode::H => Key::H,
VirtualKeyCode::I => Key::I,
VirtualKeyCode::J => Key::J,
VirtualKeyCode::K => Key::K,
VirtualKeyCode::L => Key::L,
VirtualKeyCode::M => Key::M,
VirtualKeyCode::N => Key::N,
VirtualKeyCode::O => Key::O,
VirtualKeyCode::P => Key::P,
VirtualKeyCode::Q => Key::Q,
VirtualKeyCode::R => Key::R,
VirtualKeyCode::S => Key::S,
VirtualKeyCode::T => Key::T,
VirtualKeyCode::U => Key::U,
VirtualKeyCode::V => Key::V,
VirtualKeyCode::W => Key::W,
VirtualKeyCode::X => Key::X,
VirtualKeyCode::Y => Key::Y,
VirtualKeyCode::Z => Key::Z,
_ => {
return None;
}
})
}
fn translate_cursor(cursor_icon: egui::CursorIcon) -> Option<winit::window::CursorIcon> {
match cursor_icon {
egui::CursorIcon::None => None,
egui::CursorIcon::Alias => Some(winit::window::CursorIcon::Alias),
egui::CursorIcon::AllScroll => Some(winit::window::CursorIcon::AllScroll),
egui::CursorIcon::Cell => Some(winit::window::CursorIcon::Cell),
egui::CursorIcon::ContextMenu => Some(winit::window::CursorIcon::ContextMenu),
egui::CursorIcon::Copy => Some(winit::window::CursorIcon::Copy),
egui::CursorIcon::Crosshair => Some(winit::window::CursorIcon::Crosshair),
egui::CursorIcon::Default => Some(winit::window::CursorIcon::Default),
egui::CursorIcon::Grab => Some(winit::window::CursorIcon::Grab),
egui::CursorIcon::Grabbing => Some(winit::window::CursorIcon::Grabbing),
egui::CursorIcon::Help => Some(winit::window::CursorIcon::Help),
egui::CursorIcon::Move => Some(winit::window::CursorIcon::Move),
egui::CursorIcon::NoDrop => Some(winit::window::CursorIcon::NoDrop),
egui::CursorIcon::NotAllowed => Some(winit::window::CursorIcon::NotAllowed),
egui::CursorIcon::PointingHand => Some(winit::window::CursorIcon::Hand),
egui::CursorIcon::Progress => Some(winit::window::CursorIcon::Progress),
egui::CursorIcon::ResizeHorizontal => Some(winit::window::CursorIcon::EwResize),
egui::CursorIcon::ResizeNeSw => Some(winit::window::CursorIcon::NeswResize),
egui::CursorIcon::ResizeNwSe => Some(winit::window::CursorIcon::NwseResize),
egui::CursorIcon::ResizeVertical => Some(winit::window::CursorIcon::NsResize),
egui::CursorIcon::Text => Some(winit::window::CursorIcon::Text),
egui::CursorIcon::VerticalText => Some(winit::window::CursorIcon::VerticalText),
egui::CursorIcon::Wait => Some(winit::window::CursorIcon::Wait),
egui::CursorIcon::ZoomIn => Some(winit::window::CursorIcon::ZoomIn),
egui::CursorIcon::ZoomOut => Some(winit::window::CursorIcon::ZoomOut),
}
}

1
egui_glium/src/screen_reader.rs → egui-winit/src/screen_reader.rs

@ -29,6 +29,7 @@ impl Default for ScreenReader {
impl ScreenReader {
#[cfg(not(feature = "screen_reader"))]
#[allow(clippy::unused_self)]
pub fn speak(&mut self, _text: &str) {}
#[cfg(feature = "screen_reader")]

3
egui/Cargo.toml

@ -47,7 +47,8 @@ cint = ["epaint/cint"]
persistence = ["serde", "epaint/persistence", "ron"]
# multi_threaded is only needed if you plan to use the same egui::Context from multiple threads.
# multi_threaded is only needed if you plan to use the same egui::Context
# from multiple threads. It comes with a minor performance impact.
single_threaded = ["epaint/single_threaded"]
multi_threaded = ["epaint/multi_threaded"]

4
egui/src/data/input.rs

@ -134,7 +134,7 @@ impl RawInput {
#[derive(Clone, Debug, Default, PartialEq)]
#[cfg_attr(feature = "persistence", derive(serde::Deserialize, serde::Serialize))]
pub struct HoveredFile {
/// Set by the `egui_glium` backend.
/// Set by the `egui-winit` backend.
pub path: Option<std::path::PathBuf>,
/// With the `egui_web` backend, this is set to the mime-type of the file (if available).
pub mime: String,
@ -144,7 +144,7 @@ pub struct HoveredFile {
#[derive(Clone, Debug, Default, PartialEq)]
#[cfg_attr(feature = "persistence", derive(serde::Deserialize, serde::Serialize))]
pub struct DroppedFile {
/// Set by the `egui_glium` backend.
/// Set by the `egui-winit` backend.
pub path: Option<std::path::PathBuf>,
/// Name of the file. Set by the `egui_web` backend.
pub name: String,

2
egui_glium/CHANGELOG.md

@ -8,6 +8,8 @@ All notable changes to the `egui_glium` integration will be noted in this file.
* Add `epi::NativeTexture` trait for glium painter
* Deprecate 'Painter::register_glium_texture'
* Increase scroll speed.
* Restore window position on startup without flickering.
* A lot of the code has been moved to the new library [`egui-winit`](https://github.com/emilk/egui/tree/master/egui-winit).
## 0.14.0 - 2021-08-24

25
egui_glium/Cargo.toml

@ -22,31 +22,36 @@ include = [
all-features = true
[dependencies]
copypasta = "0.7"
egui = { version = "0.14.0", path = "../egui", default-features = false, features = ["single_threaded"] }
egui-winit = { version = "0.14.0", path = "../egui-winit", default-features = false }
epi = { version = "0.14.0", path = "../epi" }
glium = "0.30"
webbrowser = "0.5"
# feature "persistence":
directories-next = { version = "2", optional = true }
ron = { version = "0.6", optional = true }
serde = { version = "1", optional = true }
# feature screen_reader
tts = { version = "0.17", optional = true }
# feature "time"
chrono = { version = "0.4", optional = true }
[dev-dependencies]
image = { version = "0.23", default-features = false, features = ["png"] }
[features]
default = ["default_fonts"]
default = ["clipboard", "default_fonts", "links"]
# enable cut/copy/paste to OS clipboard.
# if disabled a clipboard will be simulated so you can still copy/paste within the egui app.
clipboard = ["egui-winit/clipboard"]
# If set, egui will use `include_bytes!` to bundle some fonts.
# If you plan on specifying your own fonts you may disable this feature.
default_fonts = ["egui/default_fonts"]
# enable opening links in a browser when an egui hyperlink is clicked.
links = ["egui-winit/links"]
persistence = [
"directories-next",
"egui/persistence",
@ -54,5 +59,9 @@ persistence = [
"ron",
"serde",
]
time = ["chrono"] # for seconds_since_midnight
screen_reader = ["tts"] # experimental
# experimental support for a screen reader
screen_reader = ["egui-winit/screen_reader"]
# for seconds_since_midnight (used in egui_demo_lib)
time = ["chrono"]

2
egui_glium/README.md

@ -13,3 +13,5 @@ To use on Linux, first run:
```
sudo apt-get install libxcb-render0-dev libxcb-shape0-dev libxcb-xfixes0-dev libspeechd-dev libxkbcommon-dev libssl-dev
```
This crate depends on [`egui-winit`](https://github.com/emilk/egui/tree/master/egui-winit).

27
egui_glium/src/backend.rs

@ -77,7 +77,7 @@ fn window_builder_drag_and_drop(
fn create_display(
app: &dyn epi::App,
native_options: &epi::NativeOptions,
window_settings: Option<WindowSettings>,
window_settings: &Option<WindowSettings>,
window_icon: Option<glutin::window::Icon>,
event_loop: &glutin::event_loop::EventLoop<RequestRepaintEvent>,
) -> glium::Display {
@ -95,8 +95,8 @@ fn create_display(
let initial_size_points = native_options.initial_window_size;
if let Some(window_settings) = &window_settings {
window_builder = window_settings.initialize_size(window_builder);
if let Some(window_settings) = window_settings {
window_builder = window_settings.initialize_window(window_builder);
} else if let Some(initial_size_points) = initial_size_points {
window_builder = window_builder.with_inner_size(glutin::dpi::LogicalSize {
width: initial_size_points.x as f64,
@ -110,20 +110,7 @@ fn create_display(
.with_stencil_buffer(0)
.with_vsync(true);
let display = glium::Display::new(window_builder, context_builder, event_loop).unwrap();
if !cfg!(target_os = "windows") {
// If the app last ran on two monitors and only one is now connected, then
// the given position is invalid.
// If this happens on Mac, the window is clamped into valid area.
// If this happens on Windows, the window is hidden and impossible to bring to get at.
// So we don't restore window positions on Windows.
if let Some(window_settings) = &window_settings {
window_settings.restore_positions(&display);
}
}
display
glium::Display::new(window_builder, context_builder, event_loop).unwrap()
}
#[cfg(not(feature = "persistence"))]
@ -173,14 +160,14 @@ fn load_icon(icon_data: epi::IconData) -> Option<glutin::window::Icon> {
// ----------------------------------------------------------------------------
/// Run an egui app
pub fn run(mut app: Box<dyn epi::App>, native_options: epi::NativeOptions) {
pub fn run(mut app: Box<dyn epi::App>, native_options: &epi::NativeOptions) {
#[allow(unused_mut)]
let mut storage = create_storage(app.name());
let window_settings = deserialize_window_settings(&storage);
let mut event_loop = glutin::event_loop::EventLoop::with_user_event();
let icon = native_options.icon_data.clone().and_then(load_icon);
let display = create_display(&*app, &native_options, window_settings, icon, &event_loop);
let display = create_display(&*app, native_options, &window_settings, icon, &event_loop);
let repaint_signal = std::sync::Arc::new(GliumRepaintSignal(std::sync::Mutex::new(
event_loop.create_proxy(),
@ -260,7 +247,7 @@ pub fn run(mut app: Box<dyn epi::App>, native_options: epi::NativeOptions) {
} else {
// Winit uses up all the CPU of one core when returning ControlFlow::Wait.
// Sleeping here helps, but still uses 1-3% of CPU :(
if is_focused || !egui.input_state.raw.hovered_files.is_empty() {
if is_focused || !egui.egui_input().hovered_files.is_empty() {
std::thread::sleep(std::time::Duration::from_millis(10));
} else {
std::thread::sleep(std::time::Duration::from_millis(50));

628
egui_glium/src/lib.rs

@ -8,495 +8,87 @@
// Forbid warnings in release builds:
#![cfg_attr(not(debug_assertions), deny(warnings))]
#![forbid(unsafe_code)]
#![warn(clippy::all, missing_crate_level_docs, rust_2018_idioms)]
#![allow(clippy::manual_range_contains, clippy::single_match)]
#![warn(
clippy::all,
clippy::await_holding_lock,
clippy::char_lit_as_u8,
clippy::checked_conversions,
clippy::dbg_macro,
clippy::debug_assert_with_mut_call,
clippy::doc_markdown,
clippy::empty_enum,
clippy::enum_glob_use,
clippy::exit,
clippy::expl_impl_clone_on_copy,
clippy::explicit_deref_methods,
clippy::explicit_into_iter_loop,
clippy::fallible_impl_from,
clippy::filter_map_next,
clippy::float_cmp_const,
clippy::fn_params_excessive_bools,
clippy::if_let_mutex,
clippy::imprecise_flops,
clippy::inefficient_to_string,
clippy::invalid_upcast_comparisons,
clippy::large_types_passed_by_value,
clippy::let_unit_value,
clippy::linkedlist,
clippy::lossy_float_literal,
clippy::macro_use_imports,
clippy::manual_ok_or,
clippy::map_err_ignore,
clippy::map_flatten,
clippy::match_on_vec_items,
clippy::match_same_arms,
clippy::match_wildcard_for_single_variants,
clippy::mem_forget,
clippy::mismatched_target_os,
clippy::missing_errors_doc,
clippy::missing_safety_doc,
clippy::mut_mut,
clippy::mutex_integer,
clippy::needless_borrow,
clippy::needless_continue,
clippy::needless_pass_by_value,
clippy::option_option,
clippy::path_buf_push_overwrite,
clippy::ptr_as_ptr,
clippy::ref_option_ref,
clippy::rest_pat_in_fully_bound_structs,
clippy::same_functions_in_if_condition,
clippy::string_add_assign,
clippy::string_add,
clippy::string_lit_as_bytes,
clippy::string_to_string,
clippy::todo,
clippy::trait_duplication_in_bounds,
clippy::unimplemented,
clippy::unnested_or_patterns,
clippy::unused_self,
clippy::useless_transmute,
clippy::verbose_file_reads,
clippy::zero_sized_map_values,
future_incompatible,
missing_crate_level_docs,
nonstandard_style,
rust_2018_idioms
)]
#![allow(clippy::float_cmp)]
#![allow(clippy::manual_range_contains)]
mod backend;
mod painter;
#[cfg(feature = "persistence")]
pub mod persistence;
pub mod screen_reader;
pub mod window_settings;
pub use backend::*;
pub use painter::Painter;
pub use egui_winit;
pub use epi::NativeOptions;
use {
copypasta::ClipboardProvider,
egui::*,
glium::glutin::{
self,
event::{Force, VirtualKeyCode},
},
std::hash::{Hash, Hasher},
};
pub use copypasta::ClipboardContext;
pub struct GliumInputState {
pub pointer_pos_in_points: Option<Pos2>,
pub any_pointer_button_down: bool,
pub raw: egui::RawInput,
}
impl GliumInputState {
pub fn from_pixels_per_point(pixels_per_point: f32) -> Self {
Self {
pointer_pos_in_points: Default::default(),
any_pointer_button_down: false,
raw: egui::RawInput {
pixels_per_point: Some(pixels_per_point),
..Default::default()
},
}
}
}
/// Helper: checks for Alt-F4 (windows/linux) or Cmd-Q (Mac)
pub fn is_quit_shortcut(
input_state: &GliumInputState,
input: &glium::glutin::event::KeyboardInput,
) -> bool {
if cfg!(target_os = "macos") {
input.state == glutin::event::ElementState::Pressed
&& input_state.raw.modifiers.mac_cmd
&& input.virtual_keycode == Some(VirtualKeyCode::Q)
} else {
input.state == glutin::event::ElementState::Pressed
&& input_state.raw.modifiers.alt
&& input.virtual_keycode == Some(VirtualKeyCode::F4)
}
}
/// Is this a close event or a Cmd-Q/Alt-F4 keyboard command?
pub fn is_quit_event(
input_state: &GliumInputState,
event: &glutin::event::WindowEvent<'_>,
) -> bool {
use glutin::event::WindowEvent;
match event {
WindowEvent::CloseRequested | WindowEvent::Destroyed => true,
WindowEvent::KeyboardInput { input, .. } => is_quit_shortcut(input_state, input),
_ => false,
}
}
pub fn input_to_egui(
pixels_per_point: f32,
event: &glutin::event::WindowEvent<'_>,
clipboard: Option<&mut ClipboardContext>,
input_state: &mut GliumInputState,
) {
// Useful for debugging egui touch support on non-touch devices.
let simulate_touches = false;
use glutin::event::WindowEvent;
match event {
WindowEvent::ScaleFactorChanged { scale_factor, .. } => {
input_state.raw.pixels_per_point = Some(*scale_factor as f32);
}
WindowEvent::MouseInput { state, button, .. } => {
if let Some(pos) = input_state.pointer_pos_in_points {
if let Some(button) = translate_mouse_button(*button) {
let pressed = *state == glutin::event::ElementState::Pressed;
input_state.raw.events.push(egui::Event::PointerButton {
pos,
button,
pressed,
modifiers: input_state.raw.modifiers,
});
if simulate_touches {
if pressed {
input_state.any_pointer_button_down = true;
input_state.raw.events.push(egui::Event::Touch {
device_id: egui::TouchDeviceId(0),
id: egui::TouchId(0),
phase: egui::TouchPhase::Start,
pos,
force: 0.0
});
} else {
input_state.any_pointer_button_down = false;
input_state.raw.events.push(egui::Event::PointerGone);
input_state.raw.events.push(egui::Event::Touch {
device_id: egui::TouchDeviceId(0),
id: egui::TouchId(0),
phase: egui::TouchPhase::End,
pos,
force: 0.0
});
};
}
}
}
}
WindowEvent::CursorMoved {
position: pos_in_pixels,
..
} => {
let pos_in_points = pos2(
pos_in_pixels.x as f32 / pixels_per_point,
pos_in_pixels.y as f32 / pixels_per_point,
);
input_state.pointer_pos_in_points = Some(pos_in_points);
if simulate_touches {
if input_state.any_pointer_button_down {
input_state
.raw
.events
.push(egui::Event::PointerMoved(pos_in_points));
input_state.raw.events.push(egui::Event::Touch {
device_id: egui::TouchDeviceId(0),
id: egui::TouchId(0),
phase: egui::TouchPhase::Move,
pos: pos_in_points,
force: 0.0
});
}
} else {
input_state
.raw
.events
.push(egui::Event::PointerMoved(pos_in_points));
}
}
WindowEvent::CursorLeft { .. } => {
input_state.pointer_pos_in_points = None;
input_state.raw.events.push(egui::Event::PointerGone);
}
WindowEvent::ReceivedCharacter(ch) => {
if is_printable_char(*ch)
&& !input_state.raw.modifiers.ctrl
&& !input_state.raw.modifiers.mac_cmd
{
input_state.raw.events.push(Event::Text(ch.to_string()));
}
}
WindowEvent::KeyboardInput { input, .. } => {
if let Some(keycode) = input.virtual_keycode {
let pressed = input.state == glutin::event::ElementState::Pressed;
// We could also use `WindowEvent::ModifiersChanged` instead, I guess.
if matches!(keycode, VirtualKeyCode::LAlt | VirtualKeyCode::RAlt) {
input_state.raw.modifiers.alt = pressed;
}
if matches!(keycode, VirtualKeyCode::LControl | VirtualKeyCode::RControl) {
input_state.raw.modifiers.ctrl = pressed;
if !cfg!(target_os = "macos") {
input_state.raw.modifiers.command = pressed;
}
}
if matches!(keycode, VirtualKeyCode::LShift | VirtualKeyCode::RShift) {
input_state.raw.modifiers.shift = pressed;
}
if cfg!(target_os = "macos")
&& matches!(keycode, VirtualKeyCode::LWin | VirtualKeyCode::RWin)
{
input_state.raw.modifiers.mac_cmd = pressed;
input_state.raw.modifiers.command = pressed;
}
if pressed {
// VirtualKeyCode::Paste etc in winit are broken/untrustworthy,
// so we detect these things manually:
if is_cut_command(input_state.raw.modifiers, keycode) {
input_state.raw.events.push(Event::Cut);
} else if is_copy_command(input_state.raw.modifiers, keycode) {
input_state.raw.events.push(Event::Copy);
} else if is_paste_command(input_state.raw.modifiers, keycode) {
if let Some(clipboard) = clipboard {
match clipboard.get_contents() {
Ok(contents) => {
input_state.raw.events.push(Event::Text(contents));
}
Err(err) => {
eprintln!("Paste error: {}", err);
}
}
}
}
}
if let Some(key) = translate_virtual_key_code(keycode) {
input_state.raw.events.push(Event::Key {
key,
pressed,
modifiers: input_state.raw.modifiers,
});
}
}
}
WindowEvent::Focused(_) => {
// We will not be given a KeyboardInput event when the modifiers are released while
// the window does not have focus. Unset all modifier state to be safe.
input_state.raw.modifiers = Modifiers::default();
}
WindowEvent::MouseWheel { delta, .. } => {
let mut delta = match *delta {
glutin::event::MouseScrollDelta::LineDelta(x, y) => {
let points_per_scroll_line = 50.0; // Scroll speed decided by consensus: https://github.com/emilk/egui/issues/461
vec2(x, y) * points_per_scroll_line
}
glutin::event::MouseScrollDelta::PixelDelta(delta) => {
vec2(delta.x as f32, delta.y as f32) / pixels_per_point
}
};
if cfg!(target_os = "macos") {
// This is still buggy in winit despite
// https://github.com/rust-windowing/winit/issues/1695 being closed
delta.x *= -1.0;
}
if input_state.raw.modifiers.ctrl || input_state.raw.modifiers.command {
// Treat as zoom instead:
input_state.raw.zoom_delta *= (delta.y / 200.0).exp();
} else {
input_state.raw.scroll_delta += delta;
}
}
WindowEvent::TouchpadPressure {
// device_id,
// pressure,
// stage,
..
} => {
// TODO
}
WindowEvent::Touch(touch) => {
let pixels_per_point_recip = 1. / pixels_per_point;
let mut hasher = std::collections::hash_map::DefaultHasher::new();
touch.device_id.hash(&mut hasher);
input_state.raw.events.push(Event::Touch {
device_id: TouchDeviceId(hasher.finish()),
id: TouchId::from(touch.id),
phase: match touch.phase {
glutin::event::TouchPhase::Started => egui::TouchPhase::Start,
glutin::event::TouchPhase::Moved => egui::TouchPhase::Move,
glutin::event::TouchPhase::Ended => egui::TouchPhase::End,
glutin::event::TouchPhase::Cancelled => egui::TouchPhase::Cancel,
},
pos: pos2(touch.location.x as f32 * pixels_per_point_recip,
touch.location.y as f32 * pixels_per_point_recip),
force: match touch.force {
Some(Force::Normalized(force)) => force as f32,
Some(Force::Calibrated {
force,
max_possible_force,
..
}) => (force / max_possible_force) as f32,
None => 0_f32,
},
});
}
WindowEvent::HoveredFile(path) => {
input_state.raw.hovered_files.push(egui::HoveredFile {
path: Some(path.clone()),
..Default::default()
});
}
WindowEvent::HoveredFileCancelled => {
input_state.raw.hovered_files.clear();
}
WindowEvent::DroppedFile(path) => {
input_state.raw.hovered_files.clear();
input_state.raw.dropped_files.push(egui::DroppedFile {
path: Some(path.clone()),
..Default::default()
});
}
_ => {
// dbg!(event);
}
}
}
/// Glium sends special keys (backspace, delete, F1, ...) as characters.
/// Ignore those.
/// We also ignore '\r', '\n', '\t'.
/// Newlines are handled by the `Key::Enter` event.
fn is_printable_char(chr: char) -> bool {
let is_in_private_use_area = '\u{e000}' <= chr && chr <= '\u{f8ff}'
|| '\u{f0000}' <= chr && chr <= '\u{ffffd}'
|| '\u{100000}' <= chr && chr <= '\u{10fffd}';
!is_in_private_use_area && !chr.is_ascii_control()
}
fn is_cut_command(modifiers: egui::Modifiers, keycode: VirtualKeyCode) -> bool {
(modifiers.command && keycode == VirtualKeyCode::X)
|| (cfg!(target_os = "windows") && modifiers.shift && keycode == VirtualKeyCode::Delete)
}
fn is_copy_command(modifiers: egui::Modifiers, keycode: VirtualKeyCode) -> bool {
(modifiers.command && keycode == VirtualKeyCode::C)
|| (cfg!(target_os = "windows") && modifiers.ctrl && keycode == VirtualKeyCode::Insert)
}
fn is_paste_command(modifiers: egui::Modifiers, keycode: VirtualKeyCode) -> bool {
(modifiers.command && keycode == VirtualKeyCode::V)
|| (cfg!(target_os = "windows") && modifiers.shift && keycode == VirtualKeyCode::Insert)
}
pub fn translate_mouse_button(button: glutin::event::MouseButton) -> Option<egui::PointerButton> {
match button {
glutin::event::MouseButton::Left => Some(egui::PointerButton::Primary),
glutin::event::MouseButton::Right => Some(egui::PointerButton::Secondary),
glutin::event::MouseButton::Middle => Some(egui::PointerButton::Middle),
_ => None,
}
}
pub fn translate_virtual_key_code(key: VirtualKeyCode) -> Option<egui::Key> {
use VirtualKeyCode::*;
Some(match key {
Down => Key::ArrowDown,
Left => Key::ArrowLeft,
Right => Key::ArrowRight,
Up => Key::ArrowUp,
Escape => Key::Escape,
Tab => Key::Tab,
Back => Key::Backspace,
Return => Key::Enter,
Space => Key::Space,
Insert => Key::Insert,
Delete => Key::Delete,
Home => Key::Home,
End => Key::End,
PageUp => Key::PageUp,
PageDown => Key::PageDown,
Key0 | Numpad0 => Key::Num0,
Key1 | Numpad1 => Key::Num1,
Key2 | Numpad2 => Key::Num2,
Key3 | Numpad3 => Key::Num3,
Key4 | Numpad4 => Key::Num4,
Key5 | Numpad5 => Key::Num5,
Key6 | Numpad6 => Key::Num6,
Key7 | Numpad7 => Key::Num7,
Key8 | Numpad8 => Key::Num8,
Key9 | Numpad9 => Key::Num9,
A => Key::A,
B => Key::B,
C => Key::C,
D => Key::D,
E => Key::E,
F => Key::F,
G => Key::G,
H => Key::H,
I => Key::I,
J => Key::J,
K => Key::K,
L => Key::L,
M => Key::M,
N => Key::N,
O => Key::O,
P => Key::P,
Q => Key::Q,
R => Key::R,
S => Key::S,
T => Key::T,
U => Key::U,
V => Key::V,
W => Key::W,
X => Key::X,
Y => Key::Y,
Z => Key::Z,
_ => {
return None;
}
})
}
fn translate_cursor(cursor_icon: egui::CursorIcon) -> Option<glutin::window::CursorIcon> {
match cursor_icon {
CursorIcon::None => None,
CursorIcon::Alias => Some(glutin::window::CursorIcon::Alias),
CursorIcon::AllScroll => Some(glutin::window::CursorIcon::AllScroll),
CursorIcon::Cell => Some(glutin::window::CursorIcon::Cell),
CursorIcon::ContextMenu => Some(glutin::window::CursorIcon::ContextMenu),
CursorIcon::Copy => Some(glutin::window::CursorIcon::Copy),
CursorIcon::Crosshair => Some(glutin::window::CursorIcon::Crosshair),
CursorIcon::Default => Some(glutin::window::CursorIcon::Default),
CursorIcon::Grab => Some(glutin::window::CursorIcon::Grab),
CursorIcon::Grabbing => Some(glutin::window::CursorIcon::Grabbing),
CursorIcon::Help => Some(glutin::window::CursorIcon::Help),
CursorIcon::Move => Some(glutin::window::CursorIcon::Move),
CursorIcon::NoDrop => Some(glutin::window::CursorIcon::NoDrop),
CursorIcon::NotAllowed => Some(glutin::window::CursorIcon::NotAllowed),
CursorIcon::PointingHand => Some(glutin::window::CursorIcon::Hand),
CursorIcon::Progress => Some(glutin::window::CursorIcon::Progress),
CursorIcon::ResizeHorizontal => Some(glutin::window::CursorIcon::EwResize),
CursorIcon::ResizeNeSw => Some(glutin::window::CursorIcon::NeswResize),
CursorIcon::ResizeNwSe => Some(glutin::window::CursorIcon::NwseResize),
CursorIcon::ResizeVertical => Some(glutin::window::CursorIcon::NsResize),
CursorIcon::Text => Some(glutin::window::CursorIcon::Text),
CursorIcon::VerticalText => Some(glutin::window::CursorIcon::VerticalText),
CursorIcon::Wait => Some(glutin::window::CursorIcon::Wait),
CursorIcon::ZoomIn => Some(glutin::window::CursorIcon::ZoomIn),
CursorIcon::ZoomOut => Some(glutin::window::CursorIcon::ZoomOut),
}
}
fn set_cursor_icon(display: &glium::backend::glutin::Display, cursor_icon: egui::CursorIcon) {
if let Some(cursor_icon) = translate_cursor(cursor_icon) {
display.gl_window().window().set_cursor_visible(true);
display.gl_window().window().set_cursor_icon(cursor_icon);
} else {
display.gl_window().window().set_cursor_visible(false);
}
}
pub fn handle_output(
output: egui::Output,
clipboard: Option<&mut ClipboardContext>,
display: &glium::Display,
) {
if let Some(open) = output.open_url {
if let Err(err) = webbrowser::open(&open.url) {
eprintln!("Failed to open url: {}", err);
}
}
if !output.copied_text.is_empty() {
if let Some(clipboard) = clipboard {
if let Err(err) = clipboard.set_contents(output.copied_text) {
eprintln!("Copy/Cut error: {}", err);
}
}
}
if let Some(egui::Pos2 { x, y }) = output.text_cursor_pos {
display
.gl_window()
.window()
.set_ime_position(glium::glutin::dpi::LogicalPosition { x, y })
}
}
pub fn init_clipboard() -> Option<ClipboardContext> {
match ClipboardContext::new() {
Ok(clipboard) => Some(clipboard),
Err(err) => {
eprintln!("Failed to initialize clipboard: {}", err);
None
}
}
}
use glium::glutin;
// ----------------------------------------------------------------------------
@ -514,9 +106,9 @@ pub fn seconds_since_midnight() -> Option<f64> {
None
}
pub fn screen_size_in_pixels(display: &glium::Display) -> Vec2 {
pub fn screen_size_in_pixels(display: &glium::Display) -> egui::Vec2 {
let (width_in_pixels, height_in_pixels) = display.get_framebuffer_dimensions();
vec2(width_in_pixels as f32, height_in_pixels as f32)
egui::vec2(width_in_pixels as f32, height_in_pixels as f32)
}
pub fn native_pixels_per_point(display: &glium::Display) -> f32 {
@ -528,26 +120,16 @@ pub fn native_pixels_per_point(display: &glium::Display) -> f32 {
/// Use [`egui`] from a [`glium`] app.
pub struct EguiGlium {
egui_ctx: egui::CtxRef,
start_time: std::time::Instant,
clipboard: Option<crate::ClipboardContext>,
input_state: crate::GliumInputState,
egui_winit: egui_winit::State,
painter: crate::Painter,
current_cursor_icon: egui::CursorIcon,
screen_reader: crate::screen_reader::ScreenReader,
}
impl EguiGlium {
pub fn new(display: &glium::Display) -> Self {
Self {
egui_ctx: Default::default(),
start_time: std::time::Instant::now(),
clipboard: crate::init_clipboard(),
input_state: crate::GliumInputState::from_pixels_per_point(
crate::native_pixels_per_point(display),
),
egui_winit: egui_winit::State::new(display.gl_window().window()),
painter: crate::Painter::new(display),
current_cursor_icon: egui::CursorIcon::Default,
screen_reader: crate::screen_reader::ScreenReader::default(),
}
}
@ -564,24 +146,26 @@ impl EguiGlium {
}
pub fn pixels_per_point(&self) -> f32 {
self.input_state
.raw
.pixels_per_point
.unwrap_or_else(|| self.egui_ctx.pixels_per_point())
self.egui_winit.pixels_per_point()
}
pub fn on_event(&mut self, event: &glium::glutin::event::WindowEvent<'_>) {
crate::input_to_egui(
self.egui_ctx.pixels_per_point(),
event,
self.clipboard.as_mut(),
&mut self.input_state,
);
pub fn egui_input(&self) -> &egui::RawInput {
self.egui_winit.egui_input()
}
/// Returns `true` if egui wants exclusive use of this event
/// (e.g. a mouse click on an egui window, or entering text into a text field).
/// For instance, if you use egui for a game, you want to first call this
/// and only when this returns `false` pass on the events to your game.
///
/// Note that egui uses `tab` to move focus between elements, so this will always return `true` for tabs.
pub fn on_event(&mut self, event: &glium::glutin::event::WindowEvent<'_>) -> bool {
self.egui_winit.on_event(&self.egui_ctx, event)
}
/// Is this a close event or a Cmd-Q/Alt-F4 keyboard command?
pub fn is_quit_event(&self, event: &glutin::event::WindowEvent<'_>) -> bool {
crate::is_quit_event(&self.input_state, event)
self.egui_winit.is_quit_event(event)
}
pub fn begin_frame(&mut self, display: &glium::Display) {
@ -589,30 +173,14 @@ impl EguiGlium {
self.begin_frame_with_input(raw_input);
}
pub fn begin_frame_with_input(&mut self, raw_input: RawInput) {
pub fn begin_frame_with_input(&mut self, raw_input: egui::RawInput) {
self.egui_ctx.begin_frame(raw_input);
}
/// Prepare for a new frame. Normally you would call [`Self::begin_frame`] instead.
pub fn take_raw_input(&mut self, display: &glium::Display) -> egui::RawInput {
let pixels_per_point = self.pixels_per_point();
self.input_state.raw.time = Some(self.start_time.elapsed().as_secs_f64());
// On Windows, a minimized window will have 0 width and height.
// See: https://github.com/rust-windowing/winit/issues/208
// This solves an issue where egui window positions would be changed when minimizing on Windows.
let screen_size = screen_size_in_pixels(display);
self.input_state.raw.screen_rect = if screen_size.x > 0.0 && screen_size.y > 0.0 {
Some(Rect::from_min_size(
Default::default(),
screen_size / pixels_per_point,
))
} else {
None
};
self.input_state.raw.take()
self.egui_winit
.take_egui_input(display.gl_window().window())
}
/// Returns `needs_repaint` and shapes to draw.
@ -626,19 +194,9 @@ impl EguiGlium {
(needs_repaint, shapes)
}
pub fn handle_output(&mut self, display: &glium::Display, egui_output: egui::Output) {
if self.egui_ctx.memory().options.screen_reader {
self.screen_reader.speak(&egui_output.events_description());
}
if self.current_cursor_icon != egui_output.cursor_icon {
// call only when changed to prevent flickering near frame boundary
// when Windows OS tries to control cursor icon for window resizing
set_cursor_icon(display, egui_output.cursor_icon);
self.current_cursor_icon = egui_output.cursor_icon;
}
handle_output(egui_output, self.clipboard.as_mut(), display);
pub fn handle_output(&mut self, display: &glium::Display, output: egui::Output) {
self.egui_winit
.handle_output(display.gl_window().window(), &self.egui_ctx, output);
}
pub fn paint<T: glium::Surface>(

1
egui_glium/src/painter.rs

@ -1,4 +1,5 @@
#![allow(deprecated)] // legacy implement_vertex macro
#![allow(semicolon_in_expressions_from_macros)] // glium::program! macro
use {
egui::{

3
egui_glium/src/persistence.rs

@ -81,6 +81,9 @@ pub fn read_memory(ctx: &egui::Context, memory_file_path: impl AsRef<std::path::
}
/// Alternative to `FileStorage`
///
/// # Errors
/// When failing to serialize or create the file.
pub fn write_memory(
ctx: &egui::Context,
memory_file_path: impl AsRef<std::path::Path>,

55
egui_glium/src/window_settings.rs

@ -1,5 +1,6 @@
use glium::glutin;
use egui_winit::winit;
#[derive(Clone, Copy, Debug)]
#[cfg_attr(feature = "persistence", derive(serde::Deserialize, serde::Serialize))]
pub struct WindowSettings {
/// outer position of window in physical pixels
@ -37,47 +38,31 @@ impl WindowSettings {
}
}
pub fn initialize_size(
pub fn initialize_window(
&self,
window: glutin::window::WindowBuilder,
) -> glutin::window::WindowBuilder {
mut window: winit::window::WindowBuilder,
) -> winit::window::WindowBuilder {
if !cfg!(target_os = "windows") {
// If the app last ran on two monitors and only one is now connected, then
// the given position is invalid.
// If this happens on Mac, the window is clamped into valid area.
// If this happens on Windows, the window is hidden and impossible to bring to get at.
// So we don't restore window positions on Windows.
if let Some(pos) = self.pos {
window = window.with_position(winit::dpi::PhysicalPosition {
x: pos.x as f64,
y: pos.y as f64,
});
}
}
if let Some(inner_size_points) = self.inner_size_points {
window.with_inner_size(glutin::dpi::LogicalSize {
window.with_inner_size(winit::dpi::LogicalSize {
width: inner_size_points.x as f64,
height: inner_size_points.y as f64,
})
} else {
window
}
// Not yet available in winit: https://github.com/rust-windowing/winit/issues/1190
// if let Some(pos) = self.pos {
// *window = window.with_outer_pos(glutin::dpi::PhysicalPosition {
// x: pos.x as f64,
// y: pos.y as f64,
// });
// }
}
pub fn restore_positions(&self, display: &glium::Display) {
// not needed, done by `initialize_size`
// let size = self.size.unwrap_or_else(|| vec2(1024.0, 800.0));
// display
// .gl_window()
// .window()
// .set_inner_size(glutin::dpi::PhysicalSize {
// width: size.x as f64,
// height: size.y as f64,
// });
if let Some(pos) = self.pos {
display
.gl_window()
.window()
.set_outer_position(glutin::dpi::PhysicalPosition::new(
pos.x as f64,
pos.y as f64,
));
}
}
}

3
epaint/Cargo.toml

@ -36,7 +36,7 @@ parking_lot = { version = "0.11", optional = true } # Using parking_lot over std
serde = { version = "1", features = ["derive"], optional = true }
[features]
default = ["multi_threaded", "default_fonts"]
default = ["default_fonts", "multi_threaded"]
# If set, epaint will use `include_bytes!` to bundle some fonts.
# If you plan on specifying your own fonts you may disable this feature.
@ -55,4 +55,5 @@ persistence = ["serde", "emath/serde"]
single_threaded = ["atomic_refcell"]
# Only needed if you plan to use the same fonts from multiple threads.
# It comes with a minor performance impact.
multi_threaded = ["parking_lot"]

11
sh/check.sh

@ -15,9 +15,18 @@ cargo clippy --workspace --all-targets --all-features -- -D warnings -W clippy:
cargo test --workspace --all-targets --all-features
cargo fmt --all -- --check
cargo doc -p emath -p epaint -p egui -p eframe -p epi -p egui_web -p egui_glium --lib --no-deps --all-features
cargo doc -p emath -p epaint -p egui -p eframe -p epi -p egui_web -p egui-winit -p egui_glium --lib --no-deps --all-features
cargo doc -p egui_web --target wasm32-unknown-unknown --lib --no-deps --all-features
(cd emath && cargo check --no-default-features)
(cd epaint && cargo check --no-default-features --features "single_threaded")
(cd egui && cargo check --no-default-features --features "multi_threaded")
(cd eframe && cargo check --no-default-features)
(cd epi && cargo check --no-default-features)
(cd egui_web && cargo check --no-default-features)
(cd egui-winit && cargo check --no-default-features)
(cd egui_glium && cargo check --no-default-features)
# ------------------------------------------------------------
#

2
sh/docs.sh

@ -4,6 +4,6 @@ script_path=$( cd "$(dirname "${BASH_SOURCE[0]}")" ; pwd -P )
cd "$script_path/.."
cargo doc -p egui_web --target wasm32-unknown-unknown --lib --no-deps --all-features
cargo doc -p emath -p epaint -p egui -p eframe -p epi -p egui_web -p egui_glium --lib --no-deps --all-features --open
cargo doc -p emath -p epaint -p egui -p eframe -p epi -p egui_web -p egui-winit -p egui_glium --lib --no-deps --all-features --open
# cargo watch -c -x 'doc -p emath -p epaint -p egui --lib --no-deps --all-features'

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