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egui/crates/egui_demo_lib/src/demo/mod.rs
lucasmerlin 6c1d695fc6 Add screenshot support for eframe web (#5438)
This implements web support for taking screenshots in an eframe app (and
adds a nice demo).
It also updates the native screenshot implementation to work with the
wgpu gl backend.

The wgpu implementation is quite different than the native one because
we can't block to wait for the screenshot result, so instead I use a
channel to pass the result to a future frame asynchronously.

* Closes <https://github.com/emilk/egui/issues/5425>
* [x] I have followed the instructions in the PR template


https://github.com/user-attachments/assets/67cad40b-0384-431d-96a3-075cc3cb98fb
2024-12-12 19:17:42 +01:00

66 lines
1.5 KiB
Rust

//! Demo-code for showing how egui is used.
//!
//! The demo-code is also used in benchmarks and tests.
// ----------------------------------------------------------------------------
pub mod about;
pub mod code_editor;
pub mod code_example;
pub mod context_menu;
pub mod dancing_strings;
pub mod demo_app_windows;
pub mod drag_and_drop;
pub mod extra_viewport;
pub mod font_book;
pub mod frame_demo;
pub mod highlighting;
pub mod interactive_container;
pub mod misc_demo_window;
pub mod modals;
pub mod multi_touch;
pub mod paint_bezier;
pub mod painting;
pub mod pan_zoom;
pub mod panels;
pub mod password;
pub mod screenshot;
pub mod scrolling;
pub mod sliders;
pub mod strip_demo;
pub mod table_demo;
pub mod tests;
pub mod text_edit;
pub mod text_layout;
pub mod toggle_switch;
pub mod tooltips;
pub mod undo_redo;
pub mod widget_gallery;
pub mod window_options;
pub use {
about::About, demo_app_windows::DemoWindows, misc_demo_window::MiscDemoWindow,
widget_gallery::WidgetGallery,
};
// ----------------------------------------------------------------------------
/// Something to view in the demo windows
pub trait View {
fn ui(&mut self, ui: &mut egui::Ui);
}
/// Something to view
pub trait Demo {
/// Is the demo enabled for this integration?
fn is_enabled(&self, _ctx: &egui::Context) -> bool {
true
}
/// `&'static` so we can also use it as a key to store open/close state.
fn name(&self) -> &'static str;
/// Show windows, etc
fn show(&mut self, ctx: &egui::Context, open: &mut bool);
}