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Improve the About windows in the demo library (#3400)

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* Tweak size of rerun logo

* Move history of immediate mode to docs

* Add link to Rerun.io from demo-lib's About window
This commit is contained in:
Emil Ernerfeldt
2023-09-27 11:38:52 +02:00
committed by GitHub
parent 35945dea46
commit 8ef443948f
4 changed files with 22 additions and 11 deletions
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11
crates/egui/src/lib.rs
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@@ -163,7 +163,14 @@
//!
//! # Understanding immediate mode
//!
//! `egui` is an immediate mode GUI library. It is useful to fully grok what "immediate mode" implies.
//! `egui` is an immediate mode GUI library.
//!
//! Immediate mode has its roots in gaming, where everything on the screen is painted at the
//! display refresh rate, i.e. at 60+ frames per second.
//! In immediate mode GUIs, the entire interface is laid out and painted at the same high rate.
//! This makes immediate mode GUIs especially well suited for highly interactive applications.
//!
//! It is useful to fully grok what "immediate mode" implies.
//!
//! Here is an example to illustrate it:
//!
@@ -198,7 +205,7 @@
//! # });
//! ```
//!
//! Here egui will read `value` to display the slider, then look if the mouse is dragging the slider and if so change the `value`.
//! Here egui will read `value` (an `f32`) to display the slider, then look if the mouse is dragging the slider and if so change the `value`.
//! Note that `egui` does not store the slider value for you - it only displays the current value, and changes it
//! by how much the slider has been dragged in the previous few milliseconds.
//! This means it is responsibility of the egui user to store the state (`value`) so that it persists between frames.

18
crates/egui_demo_lib/src/demo/about.rs
View File

@@ -41,6 +41,15 @@ impl super::View for About {
ui.add_space(12.0); // ui.separator();
ui.heading("Links");
links(ui);
ui.add_space(12.0);
ui.horizontal_wrapped(|ui| {
ui.spacing_mut().item_spacing.x = 0.0;
ui.label("egui development is sponsored by ");
ui.hyperlink_to("Rerun.io", "https://www.rerun.io/");
ui.label(", a startup doing visualizations for computer vision and robotics.");
});
}
}
@@ -65,15 +74,10 @@ fn about_immediate_mode(ui: &mut egui::Ui) {
);
ui.add_space(8.0);
ui.label("Note how there are no callbacks or messages, and no button state to store.");
ui.label("Immediate mode has its roots in gaming, where everything on the screen is painted at the display refresh rate, i.e. at 60+ frames per second. \
In immediate mode GUIs, the entire interface is laid out and painted at the same high rate. \
This makes immediate mode GUIs especially well suited for highly interactive applications.");
ui.horizontal_wrapped(|ui| {
ui.spacing_mut().item_spacing.x = 0.0;
ui.label("More about immediate mode ");
ui.label("There are no callbacks or messages, and no button state to store. ");
ui.label("Read more about immediate mode ");
ui.hyperlink_to("here", "https://github.com/emilk/egui#why-immediate-mode");
ui.label(".");
});