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use std::{
any::Any, io::{stdout, Stdout}, sync::{Arc, Mutex}
};
use bevy::{
prelude::*,
utils::HashSet,
};
use crossterm::{
event::{
EnableMouseCapture, Event, KeyCode, KeyboardEnhancementFlags, PushKeyboardEnhancementFlags,
},
terminal::{enable_raw_mode, EnterAlternateScreen},
ExecutableCommand,
};
use ratatui::{backend::CrosstermBackend, layout::Rect, Frame};
use crate::events::TerminalInputEvent;
#[derive(Resource, Default)]
pub struct TerminalInput {
pressed_keys: HashSet<KeyCode>,
released_keys: HashSet<KeyCode>,
}
impl TerminalInput {
pub fn is_pressed(&self, code: KeyCode) -> bool {
self.pressed_keys.contains(&code)
}
pub fn is_released(&self, code: KeyCode) -> bool {
self.released_keys.contains(&code)
}
pub(super) fn press(&mut self, code: KeyCode) {
if !self.is_pressed(code) {
self.pressed_keys.insert(code);
}
}
pub(super) fn release(&mut self, code: KeyCode) {
if self.is_pressed(code) {
self.pressed_keys.remove(&code);
}
if !self.is_released(code) {
self.released_keys.insert(code);
}
}
}
#[derive(Resource, Default)]
pub(super) struct EventQueue(pub(super) Arc<Mutex<Vec<Event>>>);
#[derive(Resource)]
pub struct Terminal(pub ratatui::Terminal<CrosstermBackend<Stdout>>);
impl Default for Terminal {
fn default() -> Self {
stdout().execute(EnterAlternateScreen).unwrap();
stdout().execute(EnableMouseCapture).unwrap();
stdout()
.execute(PushKeyboardEnhancementFlags(
KeyboardEnhancementFlags::REPORT_EVENT_TYPES,
))
.unwrap();
enable_raw_mode().unwrap();
let mut terminal = ratatui::Terminal::new(CrosstermBackend::new(stdout()))
.expect("Failed to create terminal");
terminal.clear().expect("Failed to clear terminal");
Self(terminal)
}
}
// #[derive(Resource, Default)]
// pub struct TerminalUI {
// widgets: HashMap<Uuid, Box<dyn TerminalWidget + Sync + Send>>,
// }
//
// impl TerminalUI {
// pub fn insert_widget(&mut self, widget: Box<dyn TerminalWidget + Sync + Send>) -> Uuid {
// let id = Uuid::new_v4();
// self.widgets.insert(id, widget);
// id
// }
//
// pub fn get_widget(&mut self, id: Uuid) -> Option<&mut Box<dyn TerminalWidget + Sync + Send>> {
// self.widgets.get_mut(&id)
// }
//
// pub fn destroy_widget(&mut self, id: Uuid) {
// self.widgets.remove(&id);
// }
//
// pub fn widgets(&mut self) -> Vec<&mut Box<dyn TerminalWidget + Sync + Send>> {
// let mut vec = self.widgets.values_mut().collect::<Vec<_>>();
// vec.sort_by(|a, b| a.depth().cmp(&b.depth()).reverse());
// vec
// }
// }
pub trait TerminalWidget: Any {
fn init(&mut self) {}
fn update(&mut self) {}
fn render(&mut self, frame: &mut Frame, rect: Rect);
fn handle_events(&mut self, _event: &TerminalInputEvent, _commands: &mut Commands) {}
fn depth(&self) -> u32 {
0
}
}
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