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Polish image API (#3338)

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* Imoprove docs for callback shapes

* Improve docs for loader traits

* Use snake_case for feature `all_loaders`

* Make loaders publix

* Slightly better error message on image load failure

* Improve image loading error messages

* Use `bytes://` schema for included bytes loader

* Try user loaders first

* Move `image_loading_spinners` to `Visuals`

* Unify and simplify code

* Make the main text of `Button` optional

This largely makes ImageButton obsolete

* Fix docstrings

* Better docs

* typos

* Use the more explicit `egui_extras::install_image_loaders`

* Simplify `Image::paint_at` function
This commit is contained in:
Emil Ernerfeldt
2023-09-14 16:33:10 +02:00
committed by GitHub
parent e367c20779
commit d7d222d3f6
25 changed files with 406 additions and 279 deletions
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2
examples/images/Cargo.toml
View File

@@ -12,7 +12,7 @@ publish = false
eframe = { path = "../../crates/eframe", features = [
"__screenshot", # __screenshot is so we can dump a screenshot using EFRAME_SCREENSHOT_TO
] }
egui_extras = { path = "../../crates/egui_extras", features = ["all-loaders"] }
egui_extras = { path = "../../crates/egui_extras", features = ["all_loaders"] }
env_logger = "0.10"
image = { version = "0.24", default-features = false, features = [
"jpeg",

11
examples/images/src/main.rs
View File

@@ -1,12 +1,11 @@
#![cfg_attr(not(debug_assertions), windows_subsystem = "windows")] // hide console window on Windows in release
use eframe::egui;
use eframe::epaint::vec2;
fn main() -> Result<(), eframe::Error> {
env_logger::init(); // Log to stderr (if you run with `RUST_LOG=debug`).
let options = eframe::NativeOptions {
drag_and_drop_support: true,
initial_window_size: Some(egui::vec2(600.0, 800.0)),
..Default::default()
};
eframe::run_native(
@@ -14,7 +13,7 @@ fn main() -> Result<(), eframe::Error> {
options,
Box::new(|cc| {
// The following call is needed to load images when using `ui.image` and `egui::Image`:
egui_extras::loaders::install(&cc.egui_ctx);
egui_extras::install_image_loaders(&cc.egui_ctx);
Box::<MyApp>::default()
}),
)
@@ -27,10 +26,8 @@ impl eframe::App for MyApp {
fn update(&mut self, ctx: &egui::Context, _frame: &mut eframe::Frame) {
egui::CentralPanel::default().show(ctx, |ui| {
egui::ScrollArea::new([true, true]).show(ui, |ui| {
ui.add(
egui::Image::new(egui::include_image!("ferris.svg"))
.fit_to_fraction(vec2(1.0, 0.5)),
);
ui.image(egui::include_image!("ferris.svg"));
ui.add(
egui::Image::new("https://picsum.photos/seed/1.759706314/1024")
.rounding(egui::Rounding::same(10.0)),