Add module system, backlight control

src/module.rs

@@ -0,0 +1,50 @@
+use crate::buffer::Buffer;
+use crate::color::Color;
+
+use std::sync::{Arc, Mutex};
+
+use chrono::{DateTime, Local};
+
+pub enum Input {
+	Click{pos: (u32, u32), button: u32},
+	Scroll{pos: (u32, u32), x: f64, y: f64},
+}
+
+pub trait ModuleImpl {
+	fn draw(&self, buf: &mut Buffer, bg: &Color, time: &DateTime<Local>) -> Result<Vec<(i32, i32, i32, i32)>, ::std::io::Error>;
+	fn update(&mut self, time: &DateTime<Local>, force: bool) -> Result<bool, ::std::io::Error>;
+	fn input(&mut self, input: Input);
+}
+
+pub struct Module {
+	m: Arc<Mutex<Box<dyn ModuleImpl>>>,
+	pos: (u32, u32, u32, u32),
+}
+
+impl Module {
+	pub fn new(m: Box<dyn ModuleImpl>, pos: (u32, u32, u32, u32)) -> Module {
+		Module{
+			m: Arc::new(Mutex::new(m)),
+			pos: pos,
+		}
+	}
+
+	pub fn update(&self, time: &DateTime<Local>, force: bool) -> Result<bool, ::std::io::Error> {
+		self.m.lock().unwrap().update(time, force)
+	}
+
+	pub fn draw(&self, buf: &mut Buffer, bg: &Color, time: &DateTime<Local>) -> Result<Vec<(i32, i32, i32, i32)>, ::std::io::Error> {
+		self.m.lock().unwrap().draw(&mut buf.subdimensions(self.pos), bg, time)
+	}
+
+	pub fn intersect(&self, pos: (u32, u32)) -> bool {
+		pos.0 >= self.pos.0 &&
+		   pos.0 < (self.pos.0 + self.pos.2) &&
+		   pos.1 >= self.pos.1 &&
+		   pos.1 < (self.pos.1 + self.pos.3)
+	}
+
+	pub fn input(&self, input: Input) {
+		self.m.lock().unwrap().input(input)
+	}
+}