Initial commit

crates/firmware/Cargo.toml

@@ -0,0 +1,7 @@
+[package]
+name = "firmware"
+edition.workspace = true
+version.workspace = true
+
+[lib]
+path = "src/lib.rs"

crates/firmware/src/lib.rs

@@ -0,0 +1,8 @@
+#![no_std]
+#![doc = "Firmware placeholder crate for PineTime-specific code."]
+
+/// Returns a static marker used while the firmware crate is still a stub.
+#[must_use]
+pub const fn platform_name() -> &'static str {
+    "PineTime"
+}

crates/simulator/Cargo.toml

@@ -0,0 +1,9 @@
+[package]
+name = "simulator"
+edition.workspace = true
+version.workspace = true
+
+[dependencies]
+embedded-graphics.workspace = true
+embedded-graphics-simulator.workspace = true
+ui.workspace = true

crates/simulator/src/main.rs

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+//! Minimal simulator experiment using Ratatui, Mousefood, and embedded-graphics-simulator.
+
+use std::{error::Error, thread, time::Duration};
+
+use embedded_graphics::{pixelcolor::Rgb888, prelude::Size};
+use embedded_graphics_simulator::{
+    OutputSettingsBuilder, SimulatorDisplay, SimulatorEvent, Window,
+};
+
+fn main() -> Result<(), Box<dyn Error>> {
+    let mut display = SimulatorDisplay::<Rgb888>::new(Size::new(240, 240));
+
+    ui::start_ui(&mut display)?;
+
+    let output_settings = OutputSettingsBuilder::new().scale(2).build();
+    let mut window = Window::new("Vaka simulator", &output_settings);
+
+    'running: loop {
+        window.update(&display);
+
+        for event in window.events() {
+            if matches!(event, SimulatorEvent::Quit) {
+                break 'running;
+            }
+        }
+
+        thread::sleep(Duration::from_millis(16));
+    }
+
+    Ok(())
+}

crates/ui/Cargo.toml

@@ -0,0 +1,12 @@
+[package]
+name = "ui"
+edition.workspace = true
+version.workspace = true
+
+[lib]
+path = "src/lib.rs"
+
+[dependencies]
+mousefood.workspace = true
+ratatui.workspace = true
+embedded-graphics.workspace = true

crates/ui/src/lib.rs

@@ -0,0 +1,35 @@
+#![doc = "Shared UI helpers for firmware and simulator."]
+
+use std::error::Error;
+
+use embedded_graphics::prelude::{Dimensions, DrawTarget};
+use mousefood::prelude::*;
+use ratatui::{
+    Terminal,
+    style::Stylize,
+    widgets::{Block, Paragraph},
+};
+
+/// Returns the first shared text used by the simulator experiment.
+#[must_use]
+pub const fn hello_world() -> &'static str {
+    "Hello, world from Ratatui"
+}
+
+pub fn start_ui<D>(display: &mut D) -> Result<(), Box<dyn Error>>
+where
+    D: DrawTarget<Color = Rgb888> + Dimensions + 'static,
+{
+    let backend = EmbeddedBackend::new(display, EmbeddedBackendConfig::default());
+    let mut terminal = Terminal::new(backend)?;
+
+    terminal.draw(|frame| {
+        let widget = Paragraph::new(crate::hello_world().bold().yellow())
+            .block(Block::bordered().title("Vaka"))
+            .centered();
+
+        frame.render_widget(widget, frame.area());
+    })?;
+
+    Ok(())
+}