updated structure

src/lib.rs

@@ -1,15 +1,88 @@
-use std::fmt::Debug;
+use std::{thread::sleep, time::Duration};
+
+use crossterm::terminal;
+use utils::{clear, hide_cursor, render_to_frame};
 
 pub mod components;
 pub mod macros;
+pub mod utils;
 
-pub trait Component: Debug {
-    fn render(&mut self) -> String {
-        String::new()
+#[derive(Debug)]
+pub struct Params {
+    pub expr: String,
+    pub children: Vec<Component>,
+}
+
+#[derive(Debug, Clone)]
+pub struct Component {
+    pub render: fn(&mut Component) -> String,
+    pub update: fn(&mut Component),
+    pub x: usize,
+    pub y: usize,
+    pub width: usize,
+    pub height: usize,
+    pub expr: String,
+    pub children: Vec<Component>,
+}
+
+impl Component {
+    fn new(params: Params, render: fn(&mut Component) -> String) -> Component {
+        Component {
+            render,
+            update: |_| {},
+            x: 0,
+            y: 0,
+            width: 0,
+            height: 0,
+            expr: params.expr,
+            children: params.children,
+        }
     }
 }
 
-pub struct ComponentParams {
-    pub children: Vec<Box<dyn Component>>,
-    pub expr: String,
+#[derive(Debug, Clone)]
+pub struct Screen {
+    component: Component,
+}
+
+impl Screen {
+    pub fn new() -> Screen {
+        Screen {
+            component: Component::new(
+                Params {
+                    expr: "".to_string(),
+                    children: vec![],
+                },
+                |_| String::new(),
+            ),
+        }
+    }
+    pub fn set_component(&mut self, component: Component) {
+        let (width, height) = terminal::size().unwrap();
+        self.component = component;
+        if self.component.width == 0 {
+            self.component.width = width as usize;
+        }
+        if self.component.width == 0 {
+            self.component.height = height as usize;
+        }
+        self.render();
+    }
+
+    pub fn render(&mut self) {
+        let (width, height) = terminal::size().unwrap();
+        let mut frame: Vec<String> = vec![" ".repeat(width as usize); height as usize];
+        render_to_frame(width as usize, &mut frame, &mut self.component);
+        clear();
+        print!("{}", frame.join("\n"));
+    }
+
+    pub fn run(&mut self) {
+        hide_cursor();
+        // enable_raw_mode().unwrap();
+        loop {
+            self.render();
+            sleep(Duration::from_millis(500));
+        }
+    }
 }