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)
49 lines
1.3 KiB
Rust
49 lines
1.3 KiB
Rust
//! A good way of displaying an SVG image in egui.
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//!
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//! Requires the dependency `egui_extras` with the `svg` feature.
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#![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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fn main() {
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let options = eframe::NativeOptions {
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initial_window_size: Some(egui::vec2(1000.0, 700.0)),
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..Default::default()
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};
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eframe::run_native(
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"svg example",
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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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svg_image: egui_extras::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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svg_image: egui_extras::RetainedImage::from_svg_bytes(
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"rustacean-flat-happy.svg",
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include_bytes!("rustacean-flat-happy.svg"),
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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("SVG example");
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ui.label("The SVG is rasterized and displayed as a texture.");
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ui.separator();
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let max_size = ui.available_size();
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self.svg_image.show_max_size(ui, max_size);
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});
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}
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}
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