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Toggle switch now becomes blue when ON #6494

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merged 6 commits into from
Jun 7, 2024
Merged

Toggle switch now becomes blue when ON #6494

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c87d221
Toggle switch now becomes blue when ON
abey79 Jun 4, 2024
a531796
Merge branch 'refs/heads/main' into antoine/better-toggle
abey79 Jun 6, 2024
6198069
Post-merge fixes
abey79 Jun 6, 2024
8430229
Make circle large when on
abey79 Jun 6, 2024
28791b2
Merge branch 'refs/heads/main' into antoine/better-toggle
abey79 Jun 6, 2024
ae2fab9
Update to last egui for lerp
abey79 Jun 6, 2024
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20 changes: 16 additions & 4 deletions crates/re_ui/src/toggle_switch.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -18,11 +18,19 @@ fn toggle_switch_ui(ui: &mut egui::Ui, height: f32, on: &mut bool) -> egui::Resp
let how_on = ui.ctx().animate_bool(response.id, *on);
let visuals = ui.style().interact(&response);
let expanded_rect = visual_rect.expand(visuals.expansion);
let fg_fill = visuals.bg_fill;
let bg_fill = visuals.text_color();
let fg_fill_off = visuals.bg_fill;
let fg_fill_on = egui::Color32::from_rgba_premultiplied(0, 128, 255, 255);
let fg_fill = egui::Color32::from_rgba_premultiplied(
lerp_u8(fg_fill_off.r(), fg_fill_on.r(), how_on),
lerp_u8(fg_fill_off.g(), fg_fill_on.g(), how_on),
lerp_u8(fg_fill_off.b(), fg_fill_on.b(), how_on),
lerp_u8(fg_fill_off.a(), fg_fill_on.a(), how_on),
);
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let bg_fill_off = visuals.text_color();

let rounding = 0.5 * expanded_rect.height();
ui.painter()
.rect(expanded_rect, rounding, bg_fill, egui::Stroke::NONE);
.rect_filled(expanded_rect, rounding, bg_fill_off);
let circle_x = egui::lerp(
(expanded_rect.left() + rounding)..=(expanded_rect.right() - rounding),
how_on,
Expand All @@ -31,7 +39,7 @@ fn toggle_switch_ui(ui: &mut egui::Ui, height: f32, on: &mut bool) -> egui::Resp
let circle_center = egui::pos2(circle_x, expanded_rect.center().y);
let circle_radius = 0.3 * expanded_rect.height();
ui.painter()
.circle(circle_center, circle_radius, fg_fill, egui::Stroke::NONE);
.circle_filled(circle_center, circle_radius, fg_fill);
}

response
Expand All @@ -48,3 +56,7 @@ fn toggle_switch_ui(ui: &mut egui::Ui, height: f32, on: &mut bool) -> egui::Resp
pub fn toggle_switch(height: f32, on: &mut bool) -> impl egui::Widget + '_ {
move |ui: &mut egui::Ui| toggle_switch_ui(ui, height, on)
}

fn lerp_u8(a: u8, b: u8, t: f32) -> u8 {
(a as f32 + t * (b as f32 - a as f32)).round() as u8
}
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