egui/crates/egui_demo_lib/src/demo/tooltips.rs

86 lines
2.9 KiB
Rust

#[derive(Clone, PartialEq, Eq)]
#[cfg_attr(feature = "serde", derive(serde::Deserialize, serde::Serialize))]
pub struct Tooltips {
enabled: bool,
}
impl Default for Tooltips {
fn default() -> Self {
Self { enabled: true }
}
}
impl super::Demo for Tooltips {
fn name(&self) -> &'static str {
"🗖 Tooltips"
}
fn show(&mut self, ctx: &egui::Context, open: &mut bool) {
use super::View as _;
let window = egui::Window::new("Tooltips")
.constrain(false) // So we can test how tooltips behave close to the screen edge
.resizable(false)
.scroll(false)
.open(open);
window.show(ctx, |ui| self.ui(ui));
}
}
impl super::View for Tooltips {
fn ui(&mut self, ui: &mut egui::Ui) {
ui.spacing_mut().item_spacing.y = 8.0;
ui.vertical_centered(|ui| {
ui.add(crate::egui_github_link_file_line!());
});
ui.label("All labels in this demo have tooltips.")
.on_hover_text("Yes, even this one.");
ui.label("Some widgets have multiple tooltips!")
.on_hover_text("The first tooltip.")
.on_hover_text("The second tooltip.");
ui.label("Tooltips can contain interactive widgets.")
.on_hover_ui(|ui| {
ui.label("This tooltip contains a link:");
ui.hyperlink_to("www.egui.rs", "https://www.egui.rs/")
.on_hover_text("The tooltip has a tooltip in it!");
});
ui.label("You can put selectable text in tooltips too.")
.on_hover_ui(|ui| {
ui.style_mut().interaction.selectable_labels = true;
ui.label("You can select this text.");
});
ui.separator(); // ---------------------------------------------------------
let tooltip_ui = |ui: &mut egui::Ui| {
ui.horizontal(|ui| {
ui.label("This tooltip was created with");
ui.code(".on_hover_ui(…)");
});
};
let disabled_tooltip_ui = |ui: &mut egui::Ui| {
ui.label("A fifferent tooltip when widget is disabled.");
ui.horizontal(|ui| {
ui.label("This tooltip was created with");
ui.code(".on_disabled_hover_ui(…)");
});
};
ui.label("You can have different tooltips depending on whether or not a widget is enabled or not:")
.on_hover_text("Check the tooltip of the button below, and see how it changes dependning on whether or not it is enabled.");
ui.horizontal(|ui| {
ui.checkbox(&mut self.enabled, "Enabled")
.on_hover_text("Controls whether or not the button below is enabled.");
ui.add_enabled(self.enabled, egui::Button::new("Sometimes clickable"))
.on_hover_ui(tooltip_ui)
.on_disabled_hover_ui(disabled_tooltip_ui);
});
}
}