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egui/crates/egui_demo_lib/tests/misc.rs
Emil Ernerfeldt fa4cfec777 Change text color of selected text (#7691)
Selected text now gets the color of `visuals.selection.stroke.color`.
This means you can have inverted colors for selected text, like in the
new test:
<img width="154" height="46" alt="image"
src="https://github.com/user-attachments/assets/2666361d-d7e2-4d50-8e4d-2fcc128f1a81"
/>


It also means the color of selected text in labels matches that of the
text color of selected buttons.
2025-11-07 15:34:36 +01:00

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use egui::{Color32, accesskit::Role};
use egui_kittest::{Harness, kittest::Queryable as _};
#[test]
fn test_kerning() {
for pixels_per_point in [1.0, 2.0] {
for theme in [egui::Theme::Dark, egui::Theme::Light] {
let mut harness = Harness::builder()
.with_pixels_per_point(pixels_per_point)
.with_theme(theme)
.build_ui(|ui| {
ui.label("Hello world!");
ui.label("Repeated characters: iiiiiiiiiiiii lllllllll mmmmmmmmmmmmmmmm");
ui.label("Thin spaces: 123456789");
ui.label("Ligature: fi :)");
ui.label("\ttabbed");
});
harness.run();
harness.fit_contents();
harness.snapshot(format!(
"image_kerning/image_{theme}_x{pixels_per_point}",
theme = match theme {
egui::Theme::Dark => "dark",
egui::Theme::Light => "light",
}
));
}
}
}
#[test]
fn test_italics() {
for pixels_per_point in [1.0, 2.0_f32.sqrt(), 2.0] {
for theme in [egui::Theme::Dark, egui::Theme::Light] {
let mut harness = Harness::builder()
.with_pixels_per_point(pixels_per_point)
.with_theme(theme)
.build_ui(|ui| {
ui.label(egui::RichText::new("Small italics").italics().small());
ui.label(egui::RichText::new("Normal italics").italics());
ui.label(egui::RichText::new("Large italics").italics().size(22.0));
});
harness.run();
harness.fit_contents();
harness.snapshot(format!(
"italics/image_{theme}_x{pixels_per_point:.2}",
theme = match theme {
egui::Theme::Dark => "dark",
egui::Theme::Light => "light",
}
));
}
}
}
#[test]
fn test_text_selection() {
let mut harness = Harness::builder().build_ui(|ui| {
let visuals = ui.visuals_mut();
visuals.selection.bg_fill = Color32::LIGHT_GREEN;
visuals.selection.stroke.color = Color32::DARK_BLUE;
ui.label("Some varied ☺ text :)\nAnd it has a second line!");
});
harness.run();
harness.fit_contents();
// Drag to select text:
let label = harness.get_by_role(Role::Label);
harness.drag_at(label.rect().lerp_inside([0.2, 0.25]));
harness.drop_at(label.rect().lerp_inside([0.6, 0.75]));
harness.run();
harness.snapshot("text_selection");
}