b7ebe16cfb
The purpose of this is to expose `frame.storage()` and `frame.storage_mut()` so users can save/load app state from the `App::update` function, without having to add another parameter to that function. Changes: * Added `Frame::storage()` and `Frame::storage_mut()` * `App::update` now takes a `&mut Frame` rather than just `&Frame` * `Frame` is no longer `Clone` or `Sync` (doesn't have to be since https://github.com/emilk/egui/pull/1366)
53 lines
1.5 KiB
Rust
53 lines
1.5 KiB
Rust
#![cfg_attr(not(debug_assertions), windows_subsystem = "windows")] // hide console window on Windows in release
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use eframe::egui;
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use egui_extras::RetainedImage;
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fn main() {
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let options = eframe::NativeOptions {
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initial_window_size: Some(egui::vec2(500.0, 900.0)),
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..Default::default()
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};
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eframe::run_native(
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"Show an image with eframe/egui",
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options,
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Box::new(|_cc| Box::new(MyApp::default())),
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);
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}
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struct MyApp {
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image: RetainedImage,
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}
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impl Default for MyApp {
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fn default() -> Self {
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Self {
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image: RetainedImage::from_image_bytes(
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"rust-logo-256x256.png",
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include_bytes!("rust-logo-256x256.png"),
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)
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.unwrap(),
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}
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}
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}
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impl eframe::App for MyApp {
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fn update(&mut self, ctx: &egui::Context, _frame: &mut eframe::Frame) {
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egui::CentralPanel::default().show(ctx, |ui| {
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ui.heading("This is an image:");
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self.image.show(ui);
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ui.heading("This is a rotated image:");
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ui.add(
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egui::Image::new(self.image.texture_id(ctx), self.image.size_vec2())
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.rotate(45.0_f32.to_radians(), egui::Vec2::splat(0.5)),
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);
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ui.heading("This is an image you can click:");
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ui.add(egui::ImageButton::new(
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self.image.texture_id(ctx),
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self.image.size_vec2(),
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));
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});
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}
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}
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