Set up a GTK simulator for the bike lights engine

Cargo.lock

@@ -165,6 +165,12 @@ version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa"
 
+[[package]]
+name = "az"
+version = "1.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7b7e4c2464d97fe331d41de9d5db0def0a96f4d823b8b32a2efd503578988973"
+
 [[package]]
 name = "backtrace"
 version = "0.3.69"
@@ -960,6 +966,18 @@ version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8fcfdc7a0362c9f4444381a9e697c79d435fe65b52a37466fc2c1184cee9edc6"
 
+[[package]]
+name = "fixed"
+version = "1.24.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "02c69ce7e7c0f17aa18fdd9d0de39727adb9c6281f2ad12f57cbe54ae6e76e7d"
+dependencies = [
+ "az",
+ "bytemuck",
+ "half",
+ "typenum",
+]
+
 [[package]]
 name = "flate2"
 version = "1.0.27"
@@ -2155,6 +2173,10 @@ dependencies = [
  "vcpkg",
 ]
 
+[[package]]
+name = "lights-core"
+version = "0.1.0"
+
 [[package]]
 name = "linux-raw-sys"
 version = "0.4.8"
@@ -3605,6 +3627,19 @@ version = "0.3.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d66dc143e6b11c1eddc06d5c423cfc97062865baf299914ab64caa38182078fe"
 
+[[package]]
+name = "simulator"
+version = "0.1.0"
+dependencies = [
+ "cairo-rs",
+ "fixed",
+ "gio",
+ "glib",
+ "gtk4",
+ "libadwaita",
+ "pango",
+]
+
 [[package]]
 name = "siphasher"
 version = "0.2.3"

Cargo.toml

@@ -2,6 +2,8 @@
 resolver = "2"
 members = [
     "authdb",
+    "bike-lights/core",
+    "bike-lights/simulator",
     "changeset",
     "config",
     "config-derive",

bike-lights/core/Cargo.toml

@@ -0,0 +1,8 @@
+[package]
+name = "lights-core"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]

bike-lights/core/src/lib.rs

@@ -0,0 +1,14 @@
+pub fn add(left: usize, right: usize) -> usize {
+    left + right
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn it_works() {
+        let result = add(2, 2);
+        assert_eq!(result, 4);
+    }
+}

bike-lights/simulator/Cargo.toml

@@ -0,0 +1,15 @@
+[package]
+name = "simulator"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+adw         = { version = "0.5", package = "libadwaita", features = [ "v1_2" ] }
+cairo-rs    = { version = "0.18" }
+fixed       = { version = "1" }
+gio         = { version = "0.18" }
+glib        = { version = "0.18" }
+gtk         = { version = "0.7", package = "gtk4", features = [ "v4_8" ] }
+pango       = { version = "*" }

bike-lights/simulator/src/main.rs

@@ -0,0 +1,295 @@
+use adw::prelude::*;
+use glib::Object;
+use gtk::subclass::prelude::*;
+use std::{cell::RefCell, env, rc::Rc};
+
+const WIDTH: i32 = 640;
+const HEIGHT: i32 = 480;
+
+pub struct RGB {
+    pub r: u8,
+    pub g: u8,
+    pub b: u8,
+}
+
+pub struct DashboardLightsPrivate {
+    lights: Rc<RefCell<[RGB; 3]>>,
+}
+
+#[glib::object_subclass]
+impl ObjectSubclass for DashboardLightsPrivate {
+    const NAME: &'static str = "DashboardLights";
+    type Type = DashboardLights;
+    type ParentType = gtk::DrawingArea;
+
+    fn new() -> Self {
+        Self {
+            lights: Rc::new(RefCell::new([
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+            ])),
+        }
+    }
+}
+
+impl ObjectImpl for DashboardLightsPrivate {}
+impl WidgetImpl for DashboardLightsPrivate {}
+impl DrawingAreaImpl for DashboardLightsPrivate {}
+
+glib::wrapper! {
+    pub struct DashboardLights(ObjectSubclass<DashboardLightsPrivate>) @extends gtk::DrawingArea, gtk::Widget;
+}
+
+impl DashboardLights {
+    pub fn new() -> Self {
+        let s: Self = Object::builder().build();
+
+        s.set_width_request(WIDTH);
+        s.set_height_request(100);
+
+        s.set_draw_func({
+            let s = s.clone();
+            move |_, context, width, _| {
+                let start = width as f64 / 2. - 150.;
+                let lights = s.imp().lights.borrow();
+                for i in 0..3 {
+                    context.set_source_rgb(
+                        lights[i].r as f64,
+                        lights[i].g as f64,
+                        lights[i].b as f64,
+                    );
+                    context.rectangle(start + 100. * i as f64, 10., 80., 80.);
+                    let _ = context.fill();
+                }
+            }
+        });
+
+        s
+    }
+
+    pub fn set_lights(&self, lights: [RGB; 3]) {
+        *self.imp().lights.borrow_mut() = lights;
+        self.queue_draw();
+    }
+}
+
+pub struct BikeLightsPrivate {
+    lights: Rc<RefCell<[RGB; 60]>>,
+}
+
+#[glib::object_subclass]
+impl ObjectSubclass for BikeLightsPrivate {
+    const NAME: &'static str = "BikeLights";
+    type Type = BikeLights;
+    type ParentType = gtk::DrawingArea;
+
+    fn new() -> Self {
+        Self {
+            lights: Rc::new(RefCell::new([
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+                RGB { r: 0, g: 0, b: 0 },
+            ])),
+        }
+    }
+}
+
+impl ObjectImpl for BikeLightsPrivate {}
+impl WidgetImpl for BikeLightsPrivate {}
+impl DrawingAreaImpl for BikeLightsPrivate {}
+
+glib::wrapper! {
+    pub struct BikeLights(ObjectSubclass<BikeLightsPrivate>) @extends gtk::DrawingArea, gtk::Widget;
+}
+
+impl BikeLights {
+    pub fn new() -> Self {
+        let s: Self = Object::builder().build();
+
+        s.set_width_request(WIDTH);
+        s.set_height_request(200);
+
+        s.set_draw_func({
+            let s = s.clone();
+            move |_, context, _, _| {
+                let lights = s.imp().lights.borrow();
+                for i in 0..30 {
+                    context.set_source_rgb(
+                        lights[i].r as f64,
+                        lights[i].g as f64,
+                        lights[i].b as f64,
+                    );
+                    context.rectangle(5. + 20. * i as f64, 5., 15., 15.);
+                    let _ = context.fill();
+                }
+                for i in 0..30 {
+                    context.set_source_rgb(
+                        lights[i + 30].r as f64,
+                        lights[i + 30].g as f64,
+                        lights[i + 30].b as f64,
+                    );
+                    context.rectangle(5. + 20. * i as f64, 30., 15., 15.);
+                    let _ = context.fill();
+                }
+            }
+        });
+
+        s
+    }
+
+    pub fn set_lights(&self, lights: [RGB; 60]) {
+        *self.imp().lights.borrow_mut() = lights;
+        self.queue_draw();
+    }
+}
+
+fn main() {
+    let app = adw::Application::builder()
+        .application_id("com.luminescent-dreams.bike-light-simulator")
+        .build();
+
+    app.connect_activate(move |app| {
+        let window = adw::ApplicationWindow::builder()
+            .application(app)
+            .default_width(WIDTH)
+            .default_height(HEIGHT)
+            .build();
+        let layout = gtk::Box::builder()
+            .orientation(gtk::Orientation::Vertical)
+            .build();
+        let controls = gtk::Box::builder()
+            .orientation(gtk::Orientation::Horizontal)
+            .build();
+
+        let dashboard_lights = DashboardLights::new();
+        let bike_lights = BikeLights::new();
+
+        let left_button = gtk::Button::builder().label("L").build();
+        let brake_button = gtk::Button::builder().label("Brakes").build();
+        let right_button = gtk::Button::builder().label("R").build();
+
+        left_button.connect_clicked({
+            let dashboard_lights = dashboard_lights.clone();
+            move |_| {
+                dashboard_lights.set_lights([
+                    RGB {
+                        r: 128,
+                        g: 128,
+                        b: 0,
+                    },
+                    RGB { r: 0, g: 0, b: 0 },
+                    RGB { r: 0, g: 0, b: 0 },
+                ]);
+            }
+        });
+
+        brake_button.connect_clicked({
+            let dashboard_lights = dashboard_lights.clone();
+            move |_| {
+                dashboard_lights.set_lights([
+                    RGB { r: 128, g: 0, b: 0 },
+                    RGB { r: 128, g: 0, b: 0 },
+                    RGB { r: 128, g: 0, b: 0 },
+                ]);
+            }
+        });
+
+        right_button.connect_clicked({
+            let dashboard_lights = dashboard_lights.clone();
+            move |_| {
+                dashboard_lights.set_lights([
+                    RGB { r: 0, g: 0, b: 0 },
+                    RGB { r: 0, g: 0, b: 0 },
+                    RGB {
+                        r: 128,
+                        g: 128,
+                        b: 0,
+                    },
+                ]);
+            }
+        });
+
+        controls.append(&left_button);
+        controls.append(&brake_button);
+        controls.append(&right_button);
+        layout.append(&controls);
+
+        let pattern_controls = gtk::Box::builder()
+            .orientation(gtk::Orientation::Horizontal)
+            .build();
+
+        let previous_pattern = gtk::Button::builder().label("Previous").build();
+        let next_pattern = gtk::Button::builder().label("Next").build();
+
+        pattern_controls.append(&previous_pattern);
+        pattern_controls.append(&next_pattern);
+        layout.append(&pattern_controls);
+
+        layout.append(&dashboard_lights);
+        layout.append(&bike_lights);
+
+        window.set_content(Some(&layout));
+        window.present();
+    });
+
+    let args: Vec<String> = env::args().collect();
+    ApplicationExtManual::run_with_args(&app, &args);
+}