103 lines
3.6 KiB
Rust
103 lines
3.6 KiB
Rust
use std::f64::consts::PI;
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use ratatui::{layout::Rect, style::{Style, Stylize}, text::{Line, Span}, widgets::{Block, Paragraph}};
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use terminput::KeyCode;
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use crate::Demo;
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pub(crate) struct MyApp {
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counter: usize,
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frame_counter: usize,
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}
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impl Demo for MyApp {
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fn new() -> Self {
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Self {
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counter: 0,
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frame_counter: 0,
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}
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}
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async fn frame(&mut self, term: &mut crate::Term) -> Result<(), String> {
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term.draw(|fr| {
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self.frame_counter = self.frame_counter.wrapping_add(1);
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let style = Style::new().light_yellow().on_black();
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let block = Block::bordered()
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.style(style)
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.title("Example demo")
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.title_bottom("Sine - made by: wilkuu (Jakub Stachurski), jakub@snt.utwente.nl");
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let area = fr.area();
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let barea = block.inner(area);
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fr.render_widget(block, area);
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let xl = barea.x;
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let xr = barea.width + barea.x;
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let yt = barea.y + barea.height;
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let w1 = PI * 2.0 / 100.0;
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let w2 = PI * 2.0 / 300.0;
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let buf = fr.buffer_mut();
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for x in xl..xr {
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let p1 = self.frame_counter as f64 / 100.0;
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let p2 = self.frame_counter as f64 / 50.0;
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let y1: u16 = ((
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((w1 * Into::<f64>::into(x)) + p1 as f64).sin() + 1.0)
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* Into::<f64>::into(barea.height / 2-1) + Into::<f64>::into(barea.y)).round() as u16;
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let y2: u16 = ((
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((w2 * Into::<f64>::into(x)) + p2 as f64).sin() + 1.0)
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* Into::<f64>::into(barea.height / 2-1) + Into::<f64>::into(barea.y)).round() as u16;
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if y2 == y1 {
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buf.set_span(x, (y1.saturating_sub(1)).max(barea.y), &Span::from("_").light_magenta(), 1);
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buf.set_span(x, y1, &Span::from("#").light_magenta(), 1);
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buf.set_span(x, (y1.saturating_add(1)).min(yt), &Span::from("-").light_magenta(), 1);
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} else {
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buf.set_span(x, (y1.saturating_sub(1)).max(barea.y), &Span::from("_").red(), 1);
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buf.set_span(x, y1, &Span::from("#").red(), 1);
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buf.set_span(x, (y1.saturating_add(1)).min(yt), &Span::from("-").red(), 1);
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buf.set_span(x, (y2.saturating_sub(1)).max(barea.y), &Span::from("_").blue(), 1);
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buf.set_span(x, y2, &Span::from("#").blue(), 1);
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buf.set_span(x, (y2.saturating_add(1)).min(yt), &Span::from("-").blue(), 1);
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}
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}
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let mut lines: Vec<Line>= Vec::new();
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lines.push("Use W/S to change the counter. Enter to exit.".into());
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lines.push(format!("Counter: {}", self.counter).into());
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let text = Paragraph::new(lines).centered().style(style);
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fr.render_widget(text, Rect::new(barea.width/2 - 25, barea.height/2, 50, 4));
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}).map_err(|e| e.to_string())?;
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Ok(())
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}
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async fn input(&mut self, event: terminput::Event) -> Result<(), String> {
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if let terminput::Event::Key(kv) = event {
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match kv.code {
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KeyCode::Char('w') => {
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self.counter = self.counter.wrapping_add(1);
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},
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KeyCode::Char('s') => {
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self.counter = self.counter.saturating_sub(1);
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},
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_=> {}
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}
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}
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Ok(())
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}
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async fn disconnected(&mut self) {
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()
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}
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}
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